LogoFronius Symo GEN24 6 - 10 kW / 6 - 10 kW Plus
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    • 034-24042025
    • General information
      • Safety information
        • Explanation of safety instructions
        • Safety
        • General
        • Environmental conditions
        • Electromagnetic fields
        • Data on noise emission values
        • EMC measures
        • Backup power
        • Equipment grounding (GND)
      • Protection of people and equipment
        • Central grid and system protection
        • WSD (wired shutdown)
        • RCMU
        • Insulation monitoring
        • Safe state
      • General
        • Information on the device
        • How information is presented in the document
        • Qualified personnel
        • Data backup
        • Copyright
      • Fronius Symo GEN24
        • Device concept
        • Function overview
        • Fronius UP
        • Scope of supply
        • Intended use
        • Thermal concept
        • Fronius Solar.web
        • Local communication
      • Different operating modes
        • Operating modes – Explanation of symbols
        • Operating mode – Inverter with battery
        • Operating mode – Inverter with battery and several Smart Meters
        • Operating mode – Inverter with battery, AC-coupled to another inverter
        • Operating mode – Inverter with battery and backup power function
        • Operating mode – Inverter with battery and Ohmpilot
        • Operating mode – Inverter with battery, Ohmpilot, and backup power function
        • Operating mode – Inverter with battery and another inverter
        • Operating mode – Inverter with battery, another inverter, and backup power function
        • Energy flow direction of the inverter
        • Operating states (only for battery systems)
      • Energy-saving mode
        • General
        • Switch-off conditions
        • Switch-on conditions
        • Special case
        • Indication of energy saving mode
      • Suitable batteries
        • General
        • Fronius Reserva
        • BYD Battery-Box Premium
        • LG FLEX
      • Manual system start
        • Requirements
        • Notification of system shutdown
        • Manual battery start after system shutdown
        • Starting backup power operation after a system shutdown
      • Operating controls and connections
        • Connection area
        • Connection area divider
        • Ground electrode terminal
        • DC disconnector
        • Data communication area
        • Button functions and LED status indicator
        • Schematic internal wiring of IOs
    • Backup power variant - PV Point (OP)
      • General
        • Explanatory note - PV Point/PV Point Comfort
        • PV Point (OP)
        • PV Point Comfort
    • Backup power variant - Full Backup
      • General
        • Prerequisites for backup power mode
        • Transitioning from grid power feed operation to backup power mode
        • Transitioning from backup power mode to grid power feed operation
        • Backup power and energy saving mode
      • Automatic switch to backup power including backup power circuits and 3-pin separation, e.g., Austria or Australia
        • Functions
        • Transitioning from grid power feed operation to backup power mode
        • Transitioning from backup power mode to grid power feed operation
      • Automatic switch to backup power all-pin separation, e.g., Germany, France, Spain
        • Functions
        • Transitioning from grid power feed operation to backup power mode
        • Transitioning from backup power mode to grid power feed operation
      • Automatic switch to backup power all-pin separation, Italy
        • Functions
        • Transitioning from grid power feed operation to backup power mode
        • Transitioning from backup power mode to grid power feed operation
      • Manual switch to backup power 3-pin separation, e.g., Austria / all-pin separation, e.g., Germany
        • Functions
        • Transition from grid power feed operation to backup power mode
        • Transition from backup power mode to grid power feed operation
    • Installation
      • General
        • Quick-fastener system
        • System component compatibility
      • Installation location and position
        • Choosing the location of the inverter
        • Choosing the location of third-party batteries
        • Installation position of inverter
      • Installing the mounting bracket and attaching the inverter
        • Selecting the mounting material
        • Properties of the mounting bracket
        • Do not deform the mounting bracket
        • Fitting the mounting bracket to a wall
        • Installing the mounting bracket on a mast or beam
        • Attaching the mounting bracket to mounting rails
        • Attaching the inverter to the mounting bracket
      • Requirements for connecting the inverter
        • Different cable types
        • Permissible cables for the electrical connection
        • Permitted cables for the data communication connection
        • Cable diameter of the AC cable
        • Cable diameter of the DC cable
        • Maximum alternating current fuse protection
      • Connecting the inverter to the public grid (AC side)
        • Safety
        • Connecting the inverter to the public grid (AC side)
      • Connecting solar module strings to the inverter
        • General comments regarding PV modules
        • Safety
        • PV Generator, general
        • Module array configuration
          6-10 kW
        • Connecting solar module strings to the inverter
      • Connecting the battery to the inverter
        • Safety
        • Connecting the battery on the DC side
        • Connecting the LG FLEX ground conductor
      • Connecting backup power - PV Point (OP)
        • Safety
        • Installation
        • Testing backup power mode
      • Connecting backup power - Full Backup
        • Safety
        • Automatic switch to backup power 3-pole disconnection e.g., Austria or Australia
        • Automatic switch to backup power 4-pole disconnection e.g., Germany, France, Spain
        • Automatic switch to backup power 4-pole disconnection e.g., Italy
        • Manual switch to backup power 3-pole disconnection e.g., Austria / 4-pole disconnection e.g., Germany
        • Testing backup power mode
      • Connecting the data communication cables
        • Modbus participants
        • Routing data communication cables
        • Connecting the battery communication cable
        • Terminating resistors
        • Installing the WSD (wired shutdown)
      • Closing and commissioning the inverter
        • Closing the inverter's connection area/housing cover, and commissioning
        • Starting the inverter for the first time
        • Installation with the app
        • Installation with the browser
      • De-energizing the inverter and switching it back on
        • De-energizing the inverter and switching it back on
    • Settings – User interface of the inverter
      • User settings
        • User login
        • Selecting languages
      • Device configuration
        • Components
        • Functions and
          I/Os
        • Demand Response Modes (DRM)
        • Inverter
      • Energy management
        • Permitted maximum battery charge from the public grid
        • Battery management
        • Examples - Time-dependent battery control
        • Permitted battery control regulations
        • PV power reduction
        • Load management
        • Self-consumption optimization
      • System
        • General
        • Update
        • Setup wizard
        • Restoring factory settings
        • Event log
        • Information
        • License Manager
        • Support
      • Communication
        • Network
        • Modbus
        • Cloud control
        • Solar API
        • Fronius Solar.web
        • Internet services
      • Safety and grid requirements
        • Country setup
        • Requesting inverter codes in Solar.SOS
        • Absolute Generation Limit
        • Export Limitation
        • Feed-in limit – examples
        • Dynamic feed-in limit with multiple inverters
        • I/O Power Management
        • Connection diagram - 4 relays
        • I/O power management settings - 4 relays
        • Connection diagram - 3 relays
        • I/O power management settings - 3 relays
        • Connection diagram - 2 relays
        • I/O power management settings - 2 relays
        • Connection diagram - 1 relay
        • I/O power management settings - 1 relay
        • Connecting the ripple control receiver with several inverters
        • Autotest
          (CEI 0-21)
    • Options
      • Surge protection device (SPD)
        • General
        • Safety
        • Scope of supply
        • De-energizing the inverter
        • Installation
        • Starting up the inverter
      • DC Connector Kit GEN24
        • General
        • General comments regarding PV modules
        • Safety
        • Scope of supply
        • De-energizing the inverter
        • Installation
        • Starting up the inverter
      • PV Point Comfort
        • Safety
        • Scope of supply
        • De-energizing the inverter
        • Installation
        • Starting up the inverter
        • Configuring the PV Point Comfort
        • Testing backup power mode
    • Appendix
      • Service, maintenance and disposal
        • General
        • Maintenance
        • Cleaning
        • Safety
        • Operation in dusty environments
        • Disposal
      • Warranty provisions
        • Fronius manufacturer's warranty
      • Components for switching to backup power
        • Components for automatic backup power changeover to Full Backup
        • Components for manual backup power changeover to Full Backup
      • Status codes and remedy
        • Display
        • Status codes
      • Technical data
        • Fronius Symo GEN24 6.0 / 6.0 Plus
        • Fronius Symo GEN24 8.0 / 8.0 Plus
        • Fronius Symo GEN24 10.0 / 10.0 Plus
        • Fronius Symo GEN24 10.0 / 10.0 Plus
          (only Australia)
        • WLAN
        • Technical data of surge protection device DC SPD type 1+2 GEN24
        • Explanation of footnotes
        • Integrated DC disconnector
        • Integrated DC disconnector
    • Circuit Diagrams
      • Appendix: Fronius Symo GEN24 and Fronius Reserva
      • Appendix: Fronius Symo GEN24 with Fronius Reserva connected in parallel
      • Appendix: Fronius Symo GEN24 and BYD Battery-Box Premium HV
      • Appendix: Fronius Symo GEN24 with two BYD Battery-Box Premium HV connected in parallel
      • Appendix: Fronius Symo GEN24 with three BYD Battery-Box Premium HV connected in parallel
      • Appendix: Fronius Symo GEN24 and LG FLEX
      • Appendix: Emergency power terminal—PV Point (OP)
      • Appendix: Circuit diagram - PV Point (OP) Australia
      • Appendix: Backup power terminal - PV Point (OP) with battery only for France
      • Appendix: Backup power terminal - PV Point (OP) manual changeover
      • Appendix: PV Point Comfort
      • Appendix: Automatic switch to backup power 3-pin single FRT-capable separation - e.g., Austria
      • Appendix: Automatic switch to backup power 3-pin single separation - e.g., Australia
      • Appendix: Automatic switch to backup power 3-pin double separation with ext. grid and system protection
      • Appendix: Automatic switch to backup power 4-pin single separation - e.g., Germany
      • Appendix: Automatic switch to backup power 4-pin single FRT-capable separation
      • Appendix: Automatic switch to backup power 4-pin single separation - e.g., France
      • Appendix: Automatic switch to backup power 4-pin single separation - e.g., Spain
      • Appendix: Automatic switch to backup power 4-pin double separation with ext. grid and system protection - e.g., Italy
      • Appendix: Manual switch to backup power 3-pin separation, e.g., Austria
      • Appendix: Manual switch to backup power 4-pin separation, e.g., Germany
      • Appendix: Surge protection device (SPD)
    • Dimensions of the inverter
      • Appendix: Fronius Symo GEN24 6-10 kW

    Fronius Symo GEN24 6 - 10 kW / 6 - 10 kW Plus Operating instructions

    Fitting the mounting bracket to a wall
    Connecting the inverter to the public grid (AC side)
    Connecting solar module strings to the inverter
    Connecting the battery on the DC side
    Routing data communication cables
    Installation with the app

    General information

    Safety information

    Explanation of safety instructions

    WARNING!

    Indicates a potentially dangerous situation.

    Death or serious injury may result if appropriate precautions are not taken.

    CAUTION!

    Indicates a potentially harmful situation.

    Minor injury or damage to property may result if appropriate precautions are not taken.

    NOTE!

    Indicates a possibility of flawed work results and possible damage to the equipment.

    Please pay special attention when one of the symbols from the "Safety rules" chapter appears in these instructions.

    1. General information

    Safety information

    Explanation of safety instructions

    WARNING!

    Indicates a potentially dangerous situation.

    Death or serious injury may result if appropriate precautions are not taken.

    CAUTION!

    Indicates a potentially harmful situation.

    Minor injury or damage to property may result if appropriate precautions are not taken.

    NOTE!

    Indicates a possibility of flawed work results and possible damage to the equipment.

    Please pay special attention when one of the symbols from the "Safety rules" chapter appears in these instructions.

    1. General information
    2. Safety information

    Explanation of safety instructions

    WARNING!

    Indicates a potentially dangerous situation.

    Death or serious injury may result if appropriate precautions are not taken.

    CAUTION!

    Indicates a potentially harmful situation.

    Minor injury or damage to property may result if appropriate precautions are not taken.

    NOTE!

    Indicates a possibility of flawed work results and possible damage to the equipment.

    Please pay special attention when one of the symbols from the "Safety rules" chapter appears in these instructions.

    1. General information
    2. Safety information

    Safety

    CAUTION!

    Danger from crushing due to the incorrect handling of attachments and connection parts.

    Injuries to limbs may result.

    Use the integrated grips when lifting up, putting down, and attaching the inverter.

    When fitting attachments, ensure that no limbs are located between the attachment and the inverter.

    Do not hold on to the individual poles on the terminals when locking and unlocking.

    1. General information
    2. Safety information

    General

    The device has been manufactured in line with the state of the art and taking into account recognized safety regulations. If used incorrectly or misused, there is a risk of:
    • Serious or fatal injury to the operator or third parties
    • Damage to the device and other material assets belonging to the operating company
    All personnel involved in commissioning, maintenance, and servicing of the device must:
    • Be suitably qualified
    • Have knowledge of and experience in dealing with electrical installations
    • Have fully read and precisely followed these operating instructions

    In addition to the operating instructions, all applicable local regulations regarding accident prevention and environmental protection must also be followed.

    All safety and danger notices on the device:
    • Must be kept in a legible state
    • Must not be damaged
    • Must not be removed
    • Must not be covered, have anything stuck on them, or painted over
    Only operate the device when all safety devices are fully functional. If the safety devices are not fully functional, there is a danger of:
    • Serious or fatal injury to the operator or third parties
    • Damage to the device and other material assets belonging to the operating company

    Any safety devices that are not fully functional must be repaired by an authorized specialist before the device is switched on.

    Never bypass or disable safety devices.

    For the location of the safety and danger notices on the device, refer to the chapter headed "Information on the device" in the operating instructions for your device.

    Any equipment malfunctions which impair safety must be remedied before the device is turned on.

    1. General information
    2. Safety information

    Environmental conditions

    Operation or storage of the device outside the stipulated area will be deemed as not in accordance with the intended purpose. The manufacturer accepts no liability for any damage resulting from improper use.

    1. General information
    2. Safety information

    Electromagnetic fields

    During operation, due to the high electrical voltages and currents, local electromagnetic fields (EMF) occur in the environment around the inverter and the Fronius system components as well as in the area of the PV modules including the supply lines.

    In the case of exposure to humans, the required limit values are observed when the products are used in line with the intended use and the recommended distance of at least 20 cm is observed.

    If these limit values are complied with, according to current scientific knowledge, no health-endangering effects from EMF exposure are to be expected. If wearers of prostheses (implants, metal parts in and on the body) as well as active physical aids (pacemakers, insulin pumps, hearing aids, etc.) are in the vicinity of components of the PV system, they must consult with the responsible doctor regarding possible health risks.

    1. General information
    2. Safety information

    Data on noise emission values

    The sound pressure level of the inverter is indicated in the Technical data.

    The cooling of the device takes place via an electronic temperature control system at the lowest possible noise level and depends on the power used, ambient temperature, and the soiling level of the device, etc.

    It is not possible to provide a workplace-related emission value for this device, because the actual sound pressure level is heavily influenced by the installation situation, the power quality, the surrounding walls, and the properties of the room in general.

    1. General information
    2. Safety information

    EMC measures

    In certain cases, even though a device complies with the standard limit values for emissions, it may affect the application area for which it was designed (e.g., when there is equipment that is susceptible to interference at the same location or if the site where the device is installed is close to either radio or television receivers). If this is the case, the operator is obliged to take action to rectify the situation.

    1. General information
    2. Safety information

    Backup power

    This system has backup power functions, which enable a replacement power supply to be established in the event of a failure of the public grid.

    Where an automatic backup power supply is installed, a backup power warning notice (https://www.fronius.com/en/search-page, item number: 42,0409,0275) must be fitted on the electrical distributor.

    Maintenance and installation work in the home network requires both disconnection on the utility side and deactivation of the replacement power mode by opening the integrated DC disconnector on the inverter.

    The function of the residual current devices for the backup power supply must be checked at regular intervals (according to the manufacturer's instructions), but at least twice a year.
    A description on how to perform the test operation can be found in the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365).

    Depending on the insolation conditions and the battery state of charge, the backup power supply is automatically deactivated and activated. This can cause the backup power supply to unexpectedly return from standby mode. Therefore, installation work can only be performed on the home network when the backup power supply is deactivated.

    Influencing factors on the total power in backup power mode:

    Reactive power
    Electrical loads with a power factor not equal to 1 also require reactive power in addition to effective power. The reactive power also loads the inverter. Therefore, to correctly calculate the actual total power, it is not the rated power of the load that is relevant, but the current caused by effective and reactive power.

    Devices with a high reactive power are mainly electric motors such as:

    • Water pumps
    • Circular saws
    • Blowers and fans

    High starting current
    Electrical loads that need to accelerate a large mass usually require a high starting current. This can be up to 10 times higher than the nominal current. The maximum current of the inverter is available for the starting current. Loads with starting currents that are too high therefore cannot be started/operated, even though the nominal output of the inverter suggests that they can. When dimensioning the backup power circuit, the connected load power and any starting current must also be taken into account.

    Devices with high starting currents are, for example:

    • Devices with electric motors (e.g., lifting platform, circular saws, planing bench)
    • Devices with large transmission ratio and flywheel mass
    • Devices with compressors (e.g., compressed air compressors, air conditioning systems)

    IMPORTANT!
    Very high starting currents can cause short-term distortion or a drop in output voltage. Operating electronic devices simultaneously in the same backup power supply system should be avoided.

    Load imbalance
    When dimensioning three-phase backup power networks, the total output power and the power output per phase of the inverter must be taken into account.

    IMPORTANT!
    The inverter may only be operated within the limits of its technical capabilities. Operation outside of its technical capabilities can cause the inverter to shut down.

    1. General information
    2. Safety information

    Equipment grounding (GND)

    Grounding a point in the device, system, or installation serves as a protective measure against electric shock in the event of a fault. When installing an inverter from safety class 1 (see Technical data), a ground conductor connection is required.

    When connecting the ground conductor, ensure that it is secured to prevent unintentional disconnection. All of the points listed in the chapter headed Connecting the inverter to the public grid (AC side) on page (→) must be observed. When using strain-relief devices, it is important to ensure that the ground conductor is loaded last in the event of a failure. The respective national standards and regulations and requirements for minimum cross-section must be observed when connecting the ground conductor.

    1. General information

    Protection of people and equipment

    Central grid and system protection

    The inverter offers the option to use the integrated AC relays as section switches in conjunction with a central grid and system protection unit (in accordance with VDE-AR-N 4105:2018:11 §6.4.1). For this purpose, the central trigger device (switch) must be integrated into the WSD chain as described in chapter WSD (wired shutdown) on page (→).

    1. General information
    2. Protection of people and equipment

    Central grid and system protection

    The inverter offers the option to use the integrated AC relays as section switches in conjunction with a central grid and system protection unit (in accordance with VDE-AR-N 4105:2018:11 §6.4.1). For this purpose, the central trigger device (switch) must be integrated into the WSD chain as described in chapter WSD (wired shutdown) on page (→).

    1. General information
    2. Protection of people and equipment

    WSD (wired shutdown)

    The wired shutdown (WSD) interrupts the inverter's grid power feed if the trigger device (switch, e.g., Emergency Stop or fire alarm contact) has been activated.

    If an inverter (slave) fails, it is bypassed and the other inverters continue operating. If a second inverter (slave) or the inverter (master) fails, the operation of the entire WSD chain is interrupted.

    For installation, see Installing the WSD (wired shutdown) on page (→).

    1. General information
    2. Protection of people and equipment

    RCMU

    The inverter is equipped with an RCMU (RCMU = residual current monitoring unit) according to IEC 62109-2 and IEC63112.
    It monitors residual currents from the PV module up to the AC output and disconnects the inverter from the grid when an improper residual current is detected.

    1. General information
    2. Protection of people and equipment

    Insulation monitoring

    In the case of photovoltaic systems with ungrounded PV modules, the inverter checks the resistance between the positive or negative pole of the photovoltaic system and the ground potential before starting grid power feed operation. In the event of a short circuit between the DC+ or DC- cable and ground (e.g., due to inadequately insulated DC cables or defective PV modules), feeding into the public grid is prevented.

    1. General information
    2. Protection of people and equipment

    Safe state

    If one of the following safety devices is triggered, the inverter switches to a safe state:

    • WSD
    • Insulation monitoring
    • RCMU
    • AFCI

    In the safe state, the inverter no longer feeds energy in and is disconnected from the grid by the AC relay opening.

    1. General information

    General

    Information on the device

    Technical data, warning notices, labels, and safety symbols are located on the inverter. This information must be kept in a legible condition and must not be removed, covered, pasted over, or painted over. The notices and safety symbols warn against incorrect operation, which may result in serious injury and property damage.

    A 4-digit number (coded production date) is printed on the rating plate at the very bottom, from which the production date can be calculated.
    If you subtract the value 11 from the first two digits, you get the year of production. The last two digits represent the calendar week in which the device was produced.

    Example:
    Value on rating plate = 3206
    32 - 11 = 21 → Production year 2021
    06 = Calendar week 06

    Symbols on the rating plate:

    CE label – confirms compliance with applicable EU directives and regulations.

    UKCA marking – confirms compliance with applicable UK directives and regulations.

    WEEE marking – waste electrical and electronic equipment must be collected separately and recycled in an environmentally sound manner in accordance with the European Directive and national law.

    RCM marking – tested according to the requirements of Australia and New Zealand.

    ICASA marking – tested according to the requirements of the Independent Communications Authority of South Africa.

    CMIM marking – tested according to IMANOR requirements for import regulations and compliance with Moroccan standards.

    Safety symbols:

    Integrated switch disconnector on the input side of the inverter with switch-on, switch-off, and isolating function according to IEC 60947-3 and AS 60947.3. The values required by the applicable standard for Ithe solar +60°C are given.

    Risk of serious injury and property damage due to incorrect operation.

    Do not use the functions described here until you have fully read and understood the following documents:

    • These operating instructions.
    • All operating instructions for the system components of the photovoltaic system, especially the safety rules.

    Dangerous electrical voltage.

    Allow the capacitors of the inverter to discharge (2 minutes).

    Warning notice text:

    WARNING!

    An electric shock can be fatal. Before opening the device, ensure that the input and output sides are de-energized and disconnected.

    1. General information
    2. General

    Information on the device

    Technical data, warning notices, labels, and safety symbols are located on the inverter. This information must be kept in a legible condition and must not be removed, covered, pasted over, or painted over. The notices and safety symbols warn against incorrect operation, which may result in serious injury and property damage.

    A 4-digit number (coded production date) is printed on the rating plate at the very bottom, from which the production date can be calculated.
    If you subtract the value 11 from the first two digits, you get the year of production. The last two digits represent the calendar week in which the device was produced.

    Example:
    Value on rating plate = 3206
    32 - 11 = 21 → Production year 2021
    06 = Calendar week 06

    Symbols on the rating plate:

    CE label – confirms compliance with applicable EU directives and regulations.

    UKCA marking – confirms compliance with applicable UK directives and regulations.

    WEEE marking – waste electrical and electronic equipment must be collected separately and recycled in an environmentally sound manner in accordance with the European Directive and national law.

    RCM marking – tested according to the requirements of Australia and New Zealand.

    ICASA marking – tested according to the requirements of the Independent Communications Authority of South Africa.

    CMIM marking – tested according to IMANOR requirements for import regulations and compliance with Moroccan standards.

    Safety symbols:

    Integrated switch disconnector on the input side of the inverter with switch-on, switch-off, and isolating function according to IEC 60947-3 and AS 60947.3. The values required by the applicable standard for Ithe solar +60°C are given.

    Risk of serious injury and property damage due to incorrect operation.

    Do not use the functions described here until you have fully read and understood the following documents:

    • These operating instructions.
    • All operating instructions for the system components of the photovoltaic system, especially the safety rules.

    Dangerous electrical voltage.

    Allow the capacitors of the inverter to discharge (2 minutes).

    Warning notice text:

    WARNING!

    An electric shock can be fatal. Before opening the device, ensure that the input and output sides are de-energized and disconnected.

    1. General information
    2. General

    How information is presented in the document

    The conventions regarding how information is presented in the document, which are set out below, have been defined in order to increase the readability and comprehensibility of the document.

    Application notes

    IMPORTANT! Indicates application notes and other useful information. It does not indicate a harmful or dangerous situation.

    Software

    Software functions and elements of a graphical user interface (e.g., buttons, menu items) are highlighted in the text with this mark up.

    Example: Click Save.

    Instructions for action

    1Action steps are displayed with consecutive numbering.
    ✓This symbol indicates the result of the action step or the entire instruction.
    1. General information
    2. General

    Qualified personnel

    The information contained in these operating instructions is intended only for qualified personnel. An electric shock can be fatal. Do not carry out any actions other than those described in the documentation. This also applies to qualified personnel.

    All cables must be secured, undamaged, insulated, and adequately dimensioned. Loose connections, damaged or under-dimensioned cables must be repaired immediately by an authorized specialist company.

    Maintenance and repair work must only be carried out by an authorized specialist company.

    It is impossible to guarantee that third-party parts are designed and manufactured to meet the demands made on them, or that they satisfy safety requirements. Only use original spare parts.

    Do not carry out any alterations, installations, or modifications to the device without first obtaining the manufacturer's permission.

    Replace any damaged components or have them replaced immediately.

    1. General information
    2. General

    Data backup

    With regard to data security, the user is responsible for:
    • backing up any changes made to the factory settings
    • saving and storing personal settings
    1. General information
    2. General

    Copyright

    Copyright of these operating instructions remains with the manufacturer.

    Text and illustrations were accurate at the time of printing, subject to change.
    We are grateful for suggestions for improvement and information on any discrepancies in the operating instructions.

    1. General information

    Fronius Symo GEN24

    Device concept

    The inverter transforms the direct current generated by the PV modules into alternating current. This alternating current is fed into the public grid and synchronized with the mains voltage in use. Moreover, the solar energy can also be stored in a connected battery for later use.

    The inverter is intended for use in grid-connected photovoltaic systems. The inverter has backup power functions and switches to backup power mode if it has been wired accordingly*.

    The inverter automatically monitors the public grid. Whenever conditions in the electric grid are inconsistent with standard conditions (e.g., grid switch-off, interruption), the inverter will immediately stop producing power and interrupt the supply of power into the grid.
    The grid is monitored by monitoring the voltage, frequency, and islanding conditions.

    After installation and commissioning, the inverter's operation is fully automatic; the inverter draws the maximum possible power from the solar modules.
    Depending on the operating point, this power is used in the home, stored in a battery*, or fed into the grid.

    As soon as the energy provided by the solar modules is no longer sufficient, the power from the battery is fed into the home network. Depending on the setting, power may also be obtained from the public grid in order to charge the battery*.

    When its temperature gets too high, the inverter automatically reduces the output or charging power, or switches off completely, in order to protect itself.
    Reasons for the temperature being too high include a high ambient temperature or insufficient heat dissipation (for example, inadequate heat dissipation when installed in switch cabinets).

    *
    Depending on the device variant, suitable battery, corresponding cabling, settings, and local standards and regulations.
    1. General information
    2. Fronius Symo GEN24

    Device concept

    The inverter transforms the direct current generated by the PV modules into alternating current. This alternating current is fed into the public grid and synchronized with the mains voltage in use. Moreover, the solar energy can also be stored in a connected battery for later use.

    The inverter is intended for use in grid-connected photovoltaic systems. The inverter has backup power functions and switches to backup power mode if it has been wired accordingly*.

    The inverter automatically monitors the public grid. Whenever conditions in the electric grid are inconsistent with standard conditions (e.g., grid switch-off, interruption), the inverter will immediately stop producing power and interrupt the supply of power into the grid.
    The grid is monitored by monitoring the voltage, frequency, and islanding conditions.

    After installation and commissioning, the inverter's operation is fully automatic; the inverter draws the maximum possible power from the solar modules.
    Depending on the operating point, this power is used in the home, stored in a battery*, or fed into the grid.

    As soon as the energy provided by the solar modules is no longer sufficient, the power from the battery is fed into the home network. Depending on the setting, power may also be obtained from the public grid in order to charge the battery*.

    When its temperature gets too high, the inverter automatically reduces the output or charging power, or switches off completely, in order to protect itself.
    Reasons for the temperature being too high include a high ambient temperature or insufficient heat dissipation (for example, inadequate heat dissipation when installed in switch cabinets).

    *
    Depending on the device variant, suitable battery, corresponding cabling, settings, and local standards and regulations.
    1. General information
    2. Fronius Symo GEN24

    Function overview

    Function

    Symo GEN24

    Symo GEN24 Plus

    Backup power variant - PV Point (OP)

    Battery connection*

    Available as an option**

    Backup power variant - Full Backup

    Available as an option**

    *
    For suitable batteries, see chapter Suitable batteries.
    **
    The functions are optionally available via Fronius UP (see chapter Fronius UP).
    1. General information
    2. Fronius Symo GEN24

    Fronius UP

    With Fronius UP*, optionally available functions can be added to the inverter by the authorized specialist company (see chapter Function overview).

    *
    The availability of Fronius UP is country-specific. Click here for further information on availability.
    1. General information
    2. Fronius Symo GEN24

    Scope of supply

    (1)
    Housing cover
    (2)
    Inverter
    (3)
    Mounting bracket (illustration)
    (4)
    Quick Start guide
    (5)
    2x ferrite ring with holder
    1. General information
    2. Fronius Symo GEN24

    Intended use

    The inverter is designed to convert direct current from PV modules into alternating current and feed this power into the public grid. A backup power mode* is possible if the wiring is set up accordingly.

    Intended use also means:
    • Carefully reading and following all the instructions as well as complying with the safety and danger notices in the operating instructions
    • Installation in accordance with the chapter headed Installation, from page (→)

    Follow all grid operator regulations regarding energy fed into the grid and connection methods.

    The inverter is a grid-connected inverter with backup power function and is not a stand-alone inverter. The following restrictions in backup power mode must therefore be observed:
    • The inverter may be operated for max. 2000 operating hours in backup power mode
    • The inverter may be operated for more than 2000 operating hours in backup power mode provided 20% of the grid power feed operating time of the inverter is not exceeded at the time in question
    *
    Depending on the device variant, suitable battery, corresponding cabling, settings, and local standards and regulations.
    1. General information
    2. Fronius Symo GEN24

    Thermal concept

    Ambient air is drawn in at the front of the device by the fan and blown out at the sides. The even heat dissipation allows several inverters to be installed next to each another.

    NOTE!

    Risk due to insufficient cooling of the inverter.

    This may result in a loss of power in the inverter.

    Do not block the fan (e.g., with objects that protrude through the touch guard).

    Do not cover the ventilation slots, even partially.

    Make sure that the ambient air can always flow through the inverter's ventilation slots unimpeded.

    1. General information
    2. Fronius Symo GEN24

    Fronius Solar.web

    System owners and installers can easily monitor and analyze the PV system using Fronius Solar.web or Fronius Solar.web Premium. With the appropriate configuration, the inverter transmits data such as power, yield, load, and energy balance to Fronius Solar.web. More detailed information can be found at Solar.web - Monitoring & analysis.

    Configuration is carried out using the Setup wizard; see the chapter headed Installation with the app on page (→) or Installation with the browser on page (→).

    Requirements for configuration:
    • Internet connection (download: min. 512 kbit/s, upload: min. 256 kbit/s)*.
    • User account at solarweb.com.
    • Completed configuration using the Setup wizard.
    *
    These specifications do not provide an absolute guarantee of flawless operation. High error rates in the transmission, fluctuating receptions or misfires can have an adverse effect on data transfer. Fronius recommends on-site testing to ensure that the connections meet the minimum requirements.
    1. General information
    2. Fronius Symo GEN24

    Local communication

    The inverter can be found via the Multicast DNS (mDNS) protocol. We recommend searching for the inverter using the assigned host name.

    The following data can be called up via mDNS:
    • NominalPower
    • Systemname
    • DeviceSerialNumber
    • SoftwareBundleVersion
    1. General information

    Different operating modes

    Operating modes – Explanation of symbols

    PV module
    generates direct current

    Fronius GEN24 inverter
    converts direct current into alternating current and charges the battery (battery charging requires battery support, see chapter Function overview on page (→)). The integrated system monitoring enables the inverter to be integrated into a network by means of WLAN.

    Additional inverter in the system
    converts the direct current into alternating current. However, it cannot charge a battery and is not available in backup power mode.

    Battery
    is coupled to the inverter on the direct current side and stores electrical energy.

    Fronius Ohmpilot
    for using excess energy to heat water.

    Primary meter
    records the load curve of the system and makes the measured data available for energy profiling in Fronius Solar.web. The primary meter also regulates the dynamic feed-in control.

    Secondary meter
    records the load curve of individual loads (e.g., washing machine, lights, television, heat pump, etc.) in the load branch and makes the measured data available for energy profiling in Fronius Solar.web.

    Loads in the system
    are the loads connected in the system.

    Additional loads and producers in the system
    which are connected to the system by means of a Smart Meter.

    PV Point
    is a non-interruption-free 1‑phase backup power circuit, which supplies electrical devices up to a maximum output of 3 kW, provided sufficient power is available from the PV modules or the battery.

    Full Backup
    the inverter is prepared for backup power mode. The backup power function must be implemented in the switch cabinet by the electrician performing the installation. The PV system operates in a stand-alone manner in backup power mode.

    Grid
    supplies the loads in the system if insufficient power is being generated by the PV modules or supplied by the battery.

    1. General information
    2. Different operating modes

    Operating modes – Explanation of symbols

    PV module
    generates direct current

    Fronius GEN24 inverter
    converts direct current into alternating current and charges the battery (battery charging requires battery support, see chapter Function overview on page (→)). The integrated system monitoring enables the inverter to be integrated into a network by means of WLAN.

    Additional inverter in the system
    converts the direct current into alternating current. However, it cannot charge a battery and is not available in backup power mode.

    Battery
    is coupled to the inverter on the direct current side and stores electrical energy.

    Fronius Ohmpilot
    for using excess energy to heat water.

    Primary meter
    records the load curve of the system and makes the measured data available for energy profiling in Fronius Solar.web. The primary meter also regulates the dynamic feed-in control.

    Secondary meter
    records the load curve of individual loads (e.g., washing machine, lights, television, heat pump, etc.) in the load branch and makes the measured data available for energy profiling in Fronius Solar.web.

    Loads in the system
    are the loads connected in the system.

    Additional loads and producers in the system
    which are connected to the system by means of a Smart Meter.

    PV Point
    is a non-interruption-free 1‑phase backup power circuit, which supplies electrical devices up to a maximum output of 3 kW, provided sufficient power is available from the PV modules or the battery.

    Full Backup
    the inverter is prepared for backup power mode. The backup power function must be implemented in the switch cabinet by the electrician performing the installation. The PV system operates in a stand-alone manner in backup power mode.

    Grid
    supplies the loads in the system if insufficient power is being generated by the PV modules or supplied by the battery.

    1. General information
    2. Different operating modes

    Operating mode – Inverter with battery

    In order to be able to obtain the highest rate of self-consumption with your photovoltaic system, a battery can be used to store excess energy. The battery is coupled to the inverter on the direct current side. Multiple current conversion is therefore not required, and the efficiency is increased.

    1. General information
    2. Different operating modes

    Operating mode – Inverter with battery and several Smart Meters

    1. General information
    2. Different operating modes

    Operating mode – Inverter with battery, AC-coupled to another inverter

    1. General information
    2. Different operating modes

    Operating mode – Inverter with battery and backup power function

    IMPORTANT!
    In backup power mode, an increased nominal frequency is used in order to prevent undesired parallel operation with other power generators.

    When the hybrid PV system is equipped with all the available features, the inverter can:
    • Supply loads in the house
    • Store excess energy in the battery and/or feed it into the grid
    • Supply connected loads in the event of a power failure
    1. General information
    2. Different operating modes

    Operating mode – Inverter with battery and Ohmpilot

    1. General information
    2. Different operating modes

    Operating mode – Inverter with battery, Ohmpilot, and backup power function

    IMPORTANT!
    In the fully equipped hybrid PV system with a Fronius Ohmpilot, the Ohmpilot cannot be operated in the event of a power failure for regulatory reasons. It is therefore sensible to install the Ohmpilot outside of the backup power branch.

    1. General information
    2. Different operating modes

    Operating mode – Inverter with battery and another inverter

    In the hybrid PV system, batteries may only be connected to an inverter with battery support. Batteries cannot be split between multiple inverters with battery support. Depending on the battery manufacturer, however, several batteries can be combined on one inverter.

    1. General information
    2. Different operating modes

    Operating mode – Inverter with battery, another inverter, and backup power function

    In the hybrid PV system, batteries may only be connected to an inverter with battery support. Batteries cannot be split between multiple inverters with battery support. Depending on the battery manufacturer, however, several batteries can be combined on one inverter.

    1. General information
    2. Different operating modes

    Energy flow direction of the inverter

    (1)
    PV module – inverter – load/grid/battery
    (2)
    Battery – inverter – load/grid*
    (3)
    Grid – inverter – battery*

    * Depending on the settings and local standards and regulations.

    1. General information
    2. Different operating modes

    Operating states (only for battery systems)

    Battery systems distinguish between different operating states. In each case, the relevant current operating state is displayed on the user interface of the inverter or in Fronius Solar.web.

    Operating state

    Description

    Normal operation

    Energy is stored or drawn, as required.

    Min. state of charge (SoC) reached

    The battery has reached the minimum SoC specified by the manufacturer or the set minimum SoC. The battery cannot be discharged further.

    Energy saving mode (standby)

    The system has been put into energy-saving mode. Energy saving mode is automatically ended as soon as sufficient excess power is available again.

    Start

    The storage system starts from energy-saving mode (standby).

    Forced re-charging

    The inverter recharges the battery, in order to maintain the SoC specified by the manufacturer or the set SoC (protection against deep discharge).

    Deactivated

    The battery is not active. It has either been deactivated/switched off, or an error means that no communication with the battery is possible.

    1. General information

    Energy-saving mode

    General

    Energy saving mode (standby mode) is used to reduce the self-consumption of the system. Both the inverter and the battery automatically switch to energy saving mode under certain conditions.

    The inverter switches to energy saving mode if the battery is flat and no PV power is available. Only the inverter's communication with the Fronius Smart Meter and Fronius Solar.web is maintained.

    1. General information
    2. Energy-saving mode

    General

    Energy saving mode (standby mode) is used to reduce the self-consumption of the system. Both the inverter and the battery automatically switch to energy saving mode under certain conditions.

    The inverter switches to energy saving mode if the battery is flat and no PV power is available. Only the inverter's communication with the Fronius Smart Meter and Fronius Solar.web is maintained.

    1. General information
    2. Energy-saving mode

    Switch-off conditions

    If all the switch-off conditions are met, the battery switches into energy saving mode within ten minutes. This time delay ensures that the inverter can at least be restarted.

     

    The battery state of charge is less than or equal to the input minimum state of charge.

     

    The current charging or discharging power of the battery is less than 100 W.

     

    Less than 50 W is available for charging the battery. The power of feeding into the public grid is at least 50 W less than the power currently required in the home network.

    The inverter automatically switches into energy saving mode, following the battery.

    1. General information
    2. Energy-saving mode

    Switch-on conditions

    If one of the following conditions is met for at least 30 seconds, energy saving mode is ended:
    • Energy saving mode is no longer permissible owing to a changed setting on the user interface of the inverter.
    • If dynamic power reduction of 0 is set, or if the system is operating in backup power mode, the power of feeding into the public grid is always less than the required power in the home network.
      There is a separate condition for this case (dynamic power reduction < 300 W or active backup power mode):
      • If the PV power is above a specified threshold, energy saving mode is ended.
    • Battery charging from the public grid is requested via the user interface of the inverter.
    • The battery is being recharged in order to restore the minimum state of charge or perform calibration.
    1. General information
    2. Energy-saving mode

    Special case

    If the inverter does not operate for 12 minutes (e.g., fault), or there is an interruption in the electrical connection between the inverter and the battery and there is no backup power mode, the battery switches to energy-saving mode in any case. This reduces self discharge of the battery.

    1. General information
    2. Energy-saving mode

    Indication of energy saving mode

    During energy saving mode:
    • Operating LED for the inverter lights up orange (see Button functions and LED status indicator on page (→)).
    • The user interface of the inverter can be reached.
    • All the available data are saved and transmitted to Solar.web.
    • The real-time data can be seen on Solar.web.

    Energy saving mode is shown on the user interface of the inverter and in Solar.web by an "i" beside the battery symbol in the system overview.

    1. General information

    Suitable batteries

    General

    Fronius explicitly points out that the third-party batteries are not Fronius products. Fronius is not the manufacturer, distributor, or retailer of these batteries. Fronius accepts no liability and offers no service or guarantees for these batteries.

    Obsolete firmware/software states may lead to incompatibilities between the inverter and the battery. In this case, the following steps are to be performed:
    1Update battery software—see the battery documentation.
    2Update inverter firmware—see Update on page (→).

    Read this document and the Installation Instructions before installing and commissioning the external battery. The documentation is either enclosed with the external battery or can be obtained from the battery manufacturer or their service partners

    All documents associated with the inverter can be found at the following address:
    https://www.fronius.com/en/solar-energy/installers-partners/service-support/tech-support

    1. General information
    2. Suitable batteries

    General

    Fronius explicitly points out that the third-party batteries are not Fronius products. Fronius is not the manufacturer, distributor, or retailer of these batteries. Fronius accepts no liability and offers no service or guarantees for these batteries.

    Obsolete firmware/software states may lead to incompatibilities between the inverter and the battery. In this case, the following steps are to be performed:
    1Update battery software—see the battery documentation.
    2Update inverter firmware—see Update on page (→).

    Read this document and the Installation Instructions before installing and commissioning the external battery. The documentation is either enclosed with the external battery or can be obtained from the battery manufacturer or their service partners

    All documents associated with the inverter can be found at the following address:
    https://www.fronius.com/en/solar-energy/installers-partners/service-support/tech-support

    1. General information
    2. Suitable batteries

    Fronius Reserva

    Fronius Reserva

    6.3

    9.5

    12.6

    15.8

    Number of battery modules

    2

    3

    4

    5

    Fronius Symo GEN241)

    Fronius Symo GEN24 Plus

    Battery parallel operation2)

    1)
    Battery support optionally available.
    2)
    Max. 4 batteries with the same capacity can be combined.
    1. General information
    2. Suitable batteries

    BYD Battery-Box Premium

    BYD Battery-Box Premium HVS

    5.1

    7.7

    10.2

    12.81)

    Number of battery modules

    2

    3

    4

    5

    Fronius Symo GEN242)

    Fronius Symo GEN24 Plus

    Battery parallel operation 3)

    BYD Battery-Box Premium HVM

    8.3

    11.0

    13.8

    16.6

    19.3

    22.1

    Number of battery modules

    3

    4

    5

    6

    7

    8

    Fronius Symo GEN242)

    Fronius Symo GEN24 Plus

    Battery parallel operation 3)

    1)
    Not approved and certified for Italy.
    2)
    Battery support optionally available.
    3)
    Max. 3 batteries with the same capacity can be combined. With BYD Battery-Box Premium HVM 22.1 max. 2 batteries can be combined.
    IMPORTANT! The following switch-on sequence for the system must always be followed to ensure reliable operation with a BYD Battery-Box Premium.
    1

    Switch on the battery.

    2

    Set the DC disconnector to the "on" switch position. Turn on the automatic circuit breaker.

    1. General information
    2. Suitable batteries

    LG FLEX

    LG FLEX

    8.6

    12.9

    17.2

    Number of battery modules

    2

    3

    4

    Fronius Symo GEN24*

    Fronius Symo GEN24 Plus

    *
    Battery support optionally available.
    Switching on the battery
    1

    Pull off the cover to the right.

    2

    Pull off the cover of the DC disconnector to the front. Set the DC disconnector to the "on" switch position.

    To assemble the battery, perform the steps listed above in reverse order.

    1. General information

    Manual system start

    Requirements

    There is no energy available from the PV modules or from the public grid. If backup power operation or battery operation are not possible (e.g., deep discharge protection of the battery), the inverter and battery switch off.

    1. General information
    2. Manual system start

    Requirements

    There is no energy available from the PV modules or from the public grid. If backup power operation or battery operation are not possible (e.g., deep discharge protection of the battery), the inverter and battery switch off.

    1. General information
    2. Manual system start

    Notification of system shutdown

    Status codes about the inactive state of the battery are displayed on the user interface of the inverter. A notification via e-mail can be activated in Fronius Solar.web.

    1. General information
    2. Manual system start

    Manual battery start after system shutdown

    As soon as energy is available again, the inverter starts operation automatically; however, the battery must be started manually. The switch-on sequence must be observed for this, see chapter Suitable batteries on page (→).

    1. General information
    2. Manual system start

    Starting backup power operation after a system shutdown

    The inverter requires energy from the battery to start backup power operation. This is done manually on the battery; further information on the power supply for restarting the inverter via the battery can be found in the battery manufacturer's Operating Instructions.

    1. General information

    Operating controls and connections

    Connection area

     

    (1)
    2 x 4-pin DC push-in terminal
    (2)
    Push-in WSD (wired shutdown) terminal
    (3)
    Push-in terminals in the data communication area (Modbus, digital inputs and outputs)
    (4)
    3-pin push-in terminal for PV Point (OP)
    (5)
    5-pin AC push-in terminal
    (6)
    Cable bushing/cable gland AC
    (7)
    6-pin ground electrode terminal
    (8)
    Cable bushing/cable gland in the data communication area
    (9)
    Connection area divider
    (10)
    10x DC cable bushings
    (11)
    Optional cable bushing (M16)
    (12)
    Optional cable bushing (M16-M20)
    (13)
    Optional cable bushing (M16-M32)
    (14)
    Optional cable bushing (M16-M25)
    1. General information
    2. Operating controls and connections

    Connection area

     

    (1)
    2 x 4-pin DC push-in terminal
    (2)
    Push-in WSD (wired shutdown) terminal
    (3)
    Push-in terminals in the data communication area (Modbus, digital inputs and outputs)
    (4)
    3-pin push-in terminal for PV Point (OP)
    (5)
    5-pin AC push-in terminal
    (6)
    Cable bushing/cable gland AC
    (7)
    6-pin ground electrode terminal
    (8)
    Cable bushing/cable gland in the data communication area
    (9)
    Connection area divider
    (10)
    10x DC cable bushings
    (11)
    Optional cable bushing (M16)
    (12)
    Optional cable bushing (M16-M20)
    (13)
    Optional cable bushing (M16-M32)
    (14)
    Optional cable bushing (M16-M25)
    1. General information
    2. Operating controls and connections

    Connection area divider

    The connection area divider separates the high-voltage conductors (DC and AC) from the signal lines. To make it easier to reach the connection area, the divider can be removed for the connection work, and must be re-inserted.

    (1)
    Integrated cable duct
    (2)
    Recesses for removing the connection area divider
    (3)
    Snap tabs for locking/unlocking
    (4)
    Defined breaking point for the DatCom connection

    The integrated cable duct (1) allows for the lines to be laid from one area of the inverter to the other. As a result, multiple inverters can be easily installed next to each other.

    1. General information
    2. Operating controls and connections

    Ground electrode terminal

    The ground electrode terminal    allows additional components to be earthed, such as:

    • AC cable
    • Module mounting system
    • Ground rod
    1. General information
    2. Operating controls and connections

    DC disconnector

    The DC disconnector has three switch settings:

    (1)
    Locked/off (turned to the left)
    (2)
    Off
    (3)
    On

    IMPORTANT!
    In switch settings (1) and (3), the inverter can be secured to prevent it from being switched on/off using a standard padlock. The national guidelines must be complied with in this respect.

    1. General information
    2. Operating controls and connections

    Data communication area

       Operating status LED

    Indicates the inverter operating status.

    WSD (wired shutdown) switch

    Defines the inverter as a WSD primary device or WSD secondary device.

    Position 1: WSD primary device
    Position 0:
    WSD secondary device

    Modbus 0 (MB0) switch

    Switches the terminating resistor for Modbus 0 (MB0) on/off.

    Position 1: Terminating resistor on (factory setting)
    Position 0: Terminating resistor off

    Modbus 1 (MB1) switch

    Switches the terminating resistor for Modbus 1 (MB1) on/off.

    Position 1: Terminating resistor on (factory setting)
    Position 0: Terminating resistor off

       Optical sensor

    To operate the inverter. See chapter Button functions and LED status indicator on page (→).

       Communication LED

    Indicates the inverter connection status.

    LAN 1

    Ethernet connection for data communication (e.g., WLAN router, home network or for commissioning with a laptop see chapter Installation with the browser on page (→)).

    LAN 2

    Reserved for future functions. Only use LAN 1 to avoid malfunctions.

    I/Os terminal

    Push-in terminal for digital inputs/outputs. See chapter Permitted cables for the data communication connection on page (→).
    The designations (RG0, CL0, 1/5, 2/6, 3/7, 4/8) on the terminal refer to the Demand Response Mode function, see chapter Demand Response Modes (DRM) on page (→).

    WSD terminal

    Push-in terminal for the WSD installation. See chapter "WSD (wired shutdown)" on page (→).

    Modbus terminal

    Push-in terminal for the installation of Modbus 0, Modbus 1, 12 V, and GND (ground).

    The data connection to the connected components is established via the Modbus terminal. Inputs M0 and M1 can be selected for this purpose. Max. 4 Modbus participants per input, see chapter Modbus participants on page (→).

    1. General information
    2. Operating controls and connections

    Button functions and LED status indicator

    The operating status LED displays the status of the inverter. In case of faults, follow the individual steps in the Fronius Solar.start app.

    The optical sensor is actuated by touching it with a finger.

    The communications LED displays the connection status. To establish a connection, follow the individual steps in the Fronius Solar.start app.

     

    Sensor functions

    1x    = WLAN access point (AP) is opened.

       Flashes blue

    2x    = WLAN protected setup (WPS) is activated.

       Flashes green

    3 seconds    (max. 6 seconds) = The service message disappears.

       Flashes white (quickly)

     

    LED status indicator

    The inverter is operating correctly.

       Lights up green

    The inverter is performing the grid checks required by the applicable standards for grid power feed operation.

       Flashes green

    The inverter is on standby, is not operating (e.g., no energy fed into the grid at night), or is not configured.

       Lights up yellow

    The inverter displays a non-critical status.

       Flashes yellow

    The inverter displays a critical status and no energy is fed into the grid.

       Lights up red

    The inverter displays a backup power overload.

       Flashes red

    The network connection is being established via WPS.
    2x    = WPS search mode.

       Flashes green

    The network connection is being established via WLAN AP.
    1x    = WLAN AP search mode (active for 30 minutes).

       Flashes blue

    The network connection is not configured.

       Lights up yellow

    A network error is displayed, the inverter is operating correctly.

       Lights up red

    The network connection is active.

       Lights up blue

    The inverter is performing an update.

       /    Flash blue

    There is a service message.

       Lights up white

    1. General information
    2. Operating controls and connections

    Schematic internal wiring of IOs

    The V+/GND pin provides the possibility of feeding in a voltage in the range of 12.5 to 24 V (+ max. 20%) using an external power supply unit. Outputs IO 0 - 5 can then be operated using the external voltage that has been fed in. A maximum of 1 A may be drawn per output, whereby a total of max. 3 A is permitted. The fuse protection must take place externally.

    CAUTION!

    Danger from polarity reversal at the terminals due to improper connection of external power supply units.

    This may result in severe damage to the inverter.

    Check the polarity of the external power supply unit with a suitable measuring device before connecting it.

    Connect the cables to the V+/GND outputs while ensuring the correct polarity.

    IMPORTANT!
    If the total output (6W) is exceeded, the inverter switches off the entire external power supply.

    (1)
    Current limitation

    Backup power variant - PV Point (OP)

    General

    Explanatory note - PV Point/PV Point Comfort

    IMPORTANT!
    If several backup power variants are available, please note that only one backup power variant may be installed and configured.

    The inverter can provide 220‑240 V at the PV Point/PV Point Comfort. A corresponding configuration must be set up during commissioning.

    At 220‑240 V output voltage, max. 13 A AC continuous current is available.

    Example:
    220 V *13 A = 2,860 W
    230 V *13 A = max. 3 kW

    In backup power mode, some electrical appliances cannot function properly as starting currents are too high (for example, fridges and freezers). It is recommended to switch off non-essential loads during backup power mode. Overload capacity of 35% is possible for a duration of 5 seconds, depending on the capacity of the PV modules and/or the battery at that moment in time.

    There is a brief interruption when switching from grid-connected mode to backup power mode. For this reason, the backup power function cannot be used as an uninterruptible power supply, for example for computers.

    If no energy from the battery or the PV modules is available in backup power mode, backup power mode ends automatically. If sufficient energy becomes available from the PV modules once again, backup power mode starts again automatically.

    In the event of excessive consumption, backup power mode is stopped and the "backup power overload" status code is displayed on the inverter's LED status indicator (see Button functions and LED status indicator on page (→)). The maximum power in backup power mode according to the technical data must be observed.

    1. Backup power variant - PV Point (OP)

    General

    Explanatory note - PV Point/PV Point Comfort

    IMPORTANT!
    If several backup power variants are available, please note that only one backup power variant may be installed and configured.

    The inverter can provide 220‑240 V at the PV Point/PV Point Comfort. A corresponding configuration must be set up during commissioning.

    At 220‑240 V output voltage, max. 13 A AC continuous current is available.

    Example:
    220 V *13 A = 2,860 W
    230 V *13 A = max. 3 kW

    In backup power mode, some electrical appliances cannot function properly as starting currents are too high (for example, fridges and freezers). It is recommended to switch off non-essential loads during backup power mode. Overload capacity of 35% is possible for a duration of 5 seconds, depending on the capacity of the PV modules and/or the battery at that moment in time.

    There is a brief interruption when switching from grid-connected mode to backup power mode. For this reason, the backup power function cannot be used as an uninterruptible power supply, for example for computers.

    If no energy from the battery or the PV modules is available in backup power mode, backup power mode ends automatically. If sufficient energy becomes available from the PV modules once again, backup power mode starts again automatically.

    In the event of excessive consumption, backup power mode is stopped and the "backup power overload" status code is displayed on the inverter's LED status indicator (see Button functions and LED status indicator on page (→)). The maximum power in backup power mode according to the technical data must be observed.

    1. Backup power variant - PV Point (OP)
    2. General

    Explanatory note - PV Point/PV Point Comfort

    IMPORTANT!
    If several backup power variants are available, please note that only one backup power variant may be installed and configured.

    The inverter can provide 220‑240 V at the PV Point/PV Point Comfort. A corresponding configuration must be set up during commissioning.

    At 220‑240 V output voltage, max. 13 A AC continuous current is available.

    Example:
    220 V *13 A = 2,860 W
    230 V *13 A = max. 3 kW

    In backup power mode, some electrical appliances cannot function properly as starting currents are too high (for example, fridges and freezers). It is recommended to switch off non-essential loads during backup power mode. Overload capacity of 35% is possible for a duration of 5 seconds, depending on the capacity of the PV modules and/or the battery at that moment in time.

    There is a brief interruption when switching from grid-connected mode to backup power mode. For this reason, the backup power function cannot be used as an uninterruptible power supply, for example for computers.

    If no energy from the battery or the PV modules is available in backup power mode, backup power mode ends automatically. If sufficient energy becomes available from the PV modules once again, backup power mode starts again automatically.

    In the event of excessive consumption, backup power mode is stopped and the "backup power overload" status code is displayed on the inverter's LED status indicator (see Button functions and LED status indicator on page (→)). The maximum power in backup power mode according to the technical data must be observed.

    1. Backup power variant - PV Point (OP)
    2. General

    PV Point (OP)

    With the PV Point, in the event of a failure of the public grid, 1‑phase electrical devices can be connected to the Opportunity Power (OP) terminal and supplied with a maximum power of 3 kW, if enough power is available from the PV modules or an optional battery. In grid-connected operation, the OP terminal is not supplied with voltage, therefore the connected loads will not be continuously supplied with power.

    IMPORTANT!
    A relay-based network switching setup is not possible.

    Installation Instructions, see Connecting backup power - PV Point (OP) on page (→).

    1. Backup power variant - PV Point (OP)
    2. General

    PV Point Comfort

    With PV Point Comfort, 1-phase electrical devices are continuously supplied up to a maximum power of 3 kW.
    Switching between grid-connected and backup power mode takes place automatically. In the event of a failure of the public grid or the inverter, the loads on the PV Point Comfort continue to be supplied. When the public grid is available again and stability is assured, the PV Point Comfort automatically switches to grid-connected operation and backup power mode is terminated.

    IMPORTANT!
    There must be sufficient power from the PV modules or a battery for backup power mode to run. The PV Point Comfort is not available in Australia and New Zealand.

    For further information and the Installation Instructions, see PV Point Comfort on page (→).

    Backup power variant - Full Backup

    General

    Prerequisites for backup power mode

    IMPORTANT!
    If several backup power variants are available, it is important to note that only one backup power variant may be installed and configured.

    The following prerequisites must be met in order to use the inverter's backup power function:
    • The inverter must support the backup power variant 'Full Backup' (see chapter Function overview on page (→)).
    • A battery suitable for backup power use must be installed and configured.
    • Correct cabling of the backup power system in the electrical installation (see chapter Components for switching to backup power on page (→) or Circuit Diagrams on page (→)).
    • Install and configure the Fronius Smart Meter at the feed-in point.
    • Attach a backup power supply warning (https://www.fronius.com/en/search-page, item number: 42,0409,0275) to the electrical distributor.
    • Apply the necessary settings in the Devices and system components > Functions and pins > Backup Power menu item and activate backup power.
    • Go through the checklist - Backup power (https://www.fronius.com/en/search-page, item number: 42,0426,0365) step by step and confirm.
    1. Backup power variant - Full Backup

    General

    Prerequisites for backup power mode

    IMPORTANT!
    If several backup power variants are available, it is important to note that only one backup power variant may be installed and configured.

    The following prerequisites must be met in order to use the inverter's backup power function:
    • The inverter must support the backup power variant 'Full Backup' (see chapter Function overview on page (→)).
    • A battery suitable for backup power use must be installed and configured.
    • Correct cabling of the backup power system in the electrical installation (see chapter Components for switching to backup power on page (→) or Circuit Diagrams on page (→)).
    • Install and configure the Fronius Smart Meter at the feed-in point.
    • Attach a backup power supply warning (https://www.fronius.com/en/search-page, item number: 42,0409,0275) to the electrical distributor.
    • Apply the necessary settings in the Devices and system components > Functions and pins > Backup Power menu item and activate backup power.
    • Go through the checklist - Backup power (https://www.fronius.com/en/search-page, item number: 42,0426,0365) step by step and confirm.
    1. Backup power variant - Full Backup
    2. General

    Prerequisites for backup power mode

    IMPORTANT!
    If several backup power variants are available, it is important to note that only one backup power variant may be installed and configured.

    The following prerequisites must be met in order to use the inverter's backup power function:
    • The inverter must support the backup power variant 'Full Backup' (see chapter Function overview on page (→)).
    • A battery suitable for backup power use must be installed and configured.
    • Correct cabling of the backup power system in the electrical installation (see chapter Components for switching to backup power on page (→) or Circuit Diagrams on page (→)).
    • Install and configure the Fronius Smart Meter at the feed-in point.
    • Attach a backup power supply warning (https://www.fronius.com/en/search-page, item number: 42,0409,0275) to the electrical distributor.
    • Apply the necessary settings in the Devices and system components > Functions and pins > Backup Power menu item and activate backup power.
    • Go through the checklist - Backup power (https://www.fronius.com/en/search-page, item number: 42,0426,0365) step by step and confirm.
    1. Backup power variant - Full Backup
    2. General

    Transitioning from grid power feed operation to backup power mode

    1. The public grid is monitored by the inverter's internal grid and system protection unit and by the Fronius Smart Meter connected to it.
    2. The public grid fails or specific grid parameters are undershot or exceeded.
    3. The inverter carries out the measures necessary according to the country standard and then switches off.
    4. The inverter starts backup power mode after a checking period.
    5. All loads in the household that are in the backup power circuit are supplied by the battery and the PV modules. The remaining loads are not supplied with power and are safely isolated.
    1. Backup power variant - Full Backup
    2. General

    Transitioning from backup power mode to grid power feed operation

    1. The inverter is operating in backup power mode.
    2. The public grid is functioning correctly again.
    3. The Fronius Smart Meter monitors the grid parameters on the public grid and passes this information to the inverter.
    4. The stability of the restored public grid is determined by checking the measured values of the Fronius Smart Meter.
    5. Backup power mode is terminated automatically or manually depending on the design of the backup power switchover facility.
    6. All circuits are reconnected to the public grid and are supplied by the grid.
    7. The inverter can start grid power feed operation again after performing the grid checks required by the relevant standard.
    1. Backup power variant - Full Backup
    2. General

    Backup power and energy saving mode

    Under the following conditions, the battery and the inverter are switched to energy saving mode after a waiting time of 8-12 minutes and backup power mode is ended:
    • The battery is discharged to the minimum state of charge and no energy is coming from the PV modules.
    • The inverter is set to energy saving mode (standby mode).
    If the battery and inverter are in energy saving mode, the system is reactivated by the following:
    • Enough energy is available from the PV modules.
    • The public grid is functioning again.
    • The battery is switched off and on.
    1. Backup power variant - Full Backup

    Automatic switch to backup power including backup power circuits and 3-pin separation, e.g., Austria or Australia

    Functions

    • Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
    • Disconnecting from the public grid to enable operation in backup power mode if the grid parameters are outside the country-specific standards.
    • Reconnecting to the public grid when the grid parameters are within the limits specified by the country-specific standards.
    • Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load of the backup power circuits must not exceed the nominal output of the inverter. Furthermore, the performance of the connected battery must also be considered.
    1. Backup power variant - Full Backup
    2. Automatic switch to backup power including backup power circuits and 3-pin separation, e.g., Austria or Australia

    Functions

    • Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
    • Disconnecting from the public grid to enable operation in backup power mode if the grid parameters are outside the country-specific standards.
    • Reconnecting to the public grid when the grid parameters are within the limits specified by the country-specific standards.
    • Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load of the backup power circuits must not exceed the nominal output of the inverter. Furthermore, the performance of the connected battery must also be considered.
    1. Backup power variant - Full Backup
    2. Automatic switch to backup power including backup power circuits and 3-pin separation, e.g., Austria or Australia

    Transitioning from grid power feed operation to backup power mode

    1. The public grid is monitored by the inverter's internal grid and system protection unit and by the Fronius Smart Meter connected to it.
    2. Failure of the public grid.
    3. The inverter carries out the measures necessary according to the country standard and then switches off.
      Contactor K1 drops out. This disconnects the backup power circuits and the inverter from the rest of the home network and from the public grid, as the main contacts of contactor K1 open. The inverter activates relay K3, which interrupts the supply to contactor K1. This prevents unintentional activation of contactor K1 and thus a grid connection when voltage is restored in the grid. The NC auxiliary contacts of contactor K1 send feedback to the inverter that the contactor is open (a condition for starting backup power mode).
    4. The NO contact of relay K3 gives additional feedback to the inverter on whether the locking was successfully performed by relay K3.
    5. The inverter decides based on the contactor's feedback as well as the measurements on the inverter terminals that the backup power mode can be activated.
    6. After all the required activation tests have been carried out, the inverter starts backup power mode.
    7. All loads in the backup power circuits are supplied with power. The remaining loads are not supplied with power and are safely isolated.
    1. Backup power variant - Full Backup
    2. Automatic switch to backup power including backup power circuits and 3-pin separation, e.g., Austria or Australia

    Transitioning from backup power mode to grid power feed operation

    1. The inverter is operating in backup power mode. Contactor K1 to the public grid is open.
    2. Public grid available again.
    3. The Fronius Smart Meter monitors the grid parameters on the public grid and passes this information to the inverter.
    4. The stability of the restored public grid is determined by checking the measured values of the Fronius Smart Meter.
    5. The inverter ends backup power mode and disconnects the outputs.
    6. The inverter deactivates K3. Contactor K1 is reactivated.
    7. All circuits are reconnected to the public grid and are supplied by the grid. The inverter does not feed anything into the grid at this time.
    8. The inverter can start grid power feed operation again after performing the grid checks required by the relevant standard.
    1. Backup power variant - Full Backup

    Automatic switch to backup power all-pin separation, e.g., Germany, France, Spain

    Functions

    • Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
    • Disconnecting from the public grid to enable operation in backup power mode if the grid parameters are outside the country-specific standards.
    • Reconnecting to the public grid when the grid parameters are within the limits specified by the country-specific standards.
    • Establishing a proper ground connection for backup power mode to ensure the protection devices function correctly.
    • Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load of the backup power circuits must not exceed the rated power of the inverter. Furthermore, the performance of the connected battery must also be considered.
    1. Backup power variant - Full Backup
    2. Automatic switch to backup power all-pin separation, e.g., Germany, France, Spain

    Functions

    • Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
    • Disconnecting from the public grid to enable operation in backup power mode if the grid parameters are outside the country-specific standards.
    • Reconnecting to the public grid when the grid parameters are within the limits specified by the country-specific standards.
    • Establishing a proper ground connection for backup power mode to ensure the protection devices function correctly.
    • Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load of the backup power circuits must not exceed the rated power of the inverter. Furthermore, the performance of the connected battery must also be considered.
    1. Backup power variant - Full Backup
    2. Automatic switch to backup power all-pin separation, e.g., Germany, France, Spain

    Transitioning from grid power feed operation to backup power mode

    1. The public grid is monitored by the inverter's internal grid and system protection unit and by the Fronius Smart Meter connected to it.
    2. Failure of the public grid.
    3. The inverter carries out the necessary measures according to the country standard and then switches off.
      Contactors K1, K4, and K5 drop out. This disconnects the backup power circuits and the inverter from the rest of the home network and from the public grid, as the main contacts of contactor K1 open (all-pin). The NC auxiliary contacts of contactor K1 send feedback to the inverter that the contactor is open (a condition for starting backup power mode).
    4. The NC main contacts of contactors K4 and K5 are closed, establishing a connection between the neutral conductor and the ground conductor. The two other NC main contacts of contactors K4 and K5 give feedback to the inverter that the ground connection has been established correctly (a condition for starting backup power mode).
    5. The inverter activates relay K3, which interrupts the supply to contactors K1, K4, and K5. This prevents unintentional activation of contactors K1, K4, and K5 and thus a grid connection when voltage is restored in the grid.
    6. The NO contact of relay K3 gives additional feedback to the inverter on whether the locking was successfully performed by relay K3.
    7. The inverter decides based on the contactors' feedback as well as the measurements on the inverter terminals that the backup power mode can be started.
    8. After all the required activation tests have been carried out, the inverter starts backup power mode.
    9. All loads in the backup power circuits are supplied with power. The remaining loads are not supplied with power and are safely isolated.
    1. Backup power variant - Full Backup
    2. Automatic switch to backup power all-pin separation, e.g., Germany, France, Spain

    Transitioning from backup power mode to grid power feed operation

    1. The inverter is operating in backup power mode. Contactor K1 to the public grid is open.
    2. Public grid available again.
    3. The Fronius Smart Meter monitors the grid parameters on the public grid and passes this information to the inverter.
    4. The stability of the restored public grid is determined by checking the measured values of the Fronius Smart Meter.
    5. The inverter ends backup power mode and disconnects the outputs.
    6. The inverter deactivates K3. Power is restored to contactors K1, K4, and K5.
    7. All circuits are reconnected to the public grid and are supplied by the grid. The inverter does not feed anything into the grid at this time.
    8. The inverter can start grid power feed operation again after performing the grid checks required by the relevant standard.
    1. Backup power variant - Full Backup

    Automatic switch to backup power all-pin separation, Italy

    Functions

    • Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
    • Monitoring of the voltage and frequency grid parameters by the inverter.
    • Disconnecting from the public grid to enable operation in backup power mode if the grid parameters are outside the country-specific standards.
    • Reconnecting to the public grid when the grid parameters are within the limits specified by the country-specific standards.
    • Establishing a correct ground connection for backup power mode.
    • Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load of the backup power circuits must not exceed the nominal output of the inverter. Furthermore, the performance of the connected battery must also be considered.
    1. Backup power variant - Full Backup
    2. Automatic switch to backup power all-pin separation, Italy

    Functions

    • Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
    • Monitoring of the voltage and frequency grid parameters by the inverter.
    • Disconnecting from the public grid to enable operation in backup power mode if the grid parameters are outside the country-specific standards.
    • Reconnecting to the public grid when the grid parameters are within the limits specified by the country-specific standards.
    • Establishing a correct ground connection for backup power mode.
    • Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load of the backup power circuits must not exceed the nominal output of the inverter. Furthermore, the performance of the connected battery must also be considered.
    1. Backup power variant - Full Backup
    2. Automatic switch to backup power all-pin separation, Italy

    Transitioning from grid power feed operation to backup power mode

    1. The public grid is monitored by the inverter's internal grid and system protection unit and by an external grid and system protection unit.
    2. Failure of the public grid
    3. The inverter carries out the measures necessary according to the country standard and then switches off.
    4. The external grid and system protection unit opens contactors K1 and K2 for grid monitoring. This disconnects the backup power circuits and the inverter from the rest of the home network and from the public grid, as the main contacts of contactors K1 and K2 open (all-pin). To ensure that the public grid has definitely been disconnected, the NC auxiliary contacts of contactor K1 give feedback to the external grid and system protection unit.
    5. The NC main contacts of contactors K4 and K5 are closed, establishing a connection between the neutral conductor and the ground conductor. The two other NC main contacts of contactors K4 and K5 give feedback to the inverter that the ground connection has been established correctly.
    6. The inverter activates relay K3, which activates the remote input of the external grid and system protection unit via an NC contact. This prevents a connection to the public grid when voltage is restored in the grid.
    7. The NO contact of relay K3 gives additional feedback to the inverter on whether the locking was successfully performed by relay K3.
    8. The inverter decides based on the contactor's feedback as well as the measurement on the inverter terminals that the backup power mode can be activated.
    9. The inverter starts backup power mode after a defined checking period.
    10. All loads in the backup power circuits are supplied with power. The remaining loads are not supplied with power and are safely isolated.
    1. Backup power variant - Full Backup
    2. Automatic switch to backup power all-pin separation, Italy

    Transitioning from backup power mode to grid power feed operation

    1. The inverter is operating in backup power mode. The contactors K1 and K2 to the public grid are open.
    2. Public grid available again.
    3. The Fronius Smart Meter monitors the grid parameters on the public grid and passes this information to the inverter.
    4. The stability of the restored public grid is determined by checking the measured values of the Fronius Smart Meter.
    5. On the basis of adjustments that have been carried out, the inverter ends backup power mode and disconnects the outputs.
    6. The inverter deactivates K3. Power is restored to contactors K1, K2, K4, and K5.
    7. All circuits are reconnected to the public grid and are supplied by the grid. The inverter does not feed anything into the grid at this time.
    8. The inverter can start grid power feed operation again after performing the grid checks required by the relevant standard.
    1. Backup power variant - Full Backup

    Manual switch to backup power 3-pin separation, e.g., Austria / all-pin separation, e.g., Germany

    Functions

    • Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
    • Monitoring of the grid parameters by the inverter.
    • Possibility of manual separation from the public grid if it fails or is deemed unstable.
    • Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load of the backup power circuits must not exceed the rated power of the inverter. Furthermore, the performance of the connected battery must also be considered.
    • If, in the event of a public grid failure, there is no manual switch to backup power mode within the first 10 minutes, this may cause the inverter and the battery to shut down. In order to then start backup power mode, manual switching must take place and a manual system start must be performed, if necessary (see chapter Manual system start on page (→)).
    • It is possible to manually reconnect the inverter and loads in the backup power circuit to the public grid once it is deemed to be stable again. The inverter only starts feed-in mode once the required grid monitoring time has passed.
    1. Backup power variant - Full Backup
    2. Manual switch to backup power 3-pin separation, e.g., Austria / all-pin separation, e.g., Germany

    Functions

    • Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter.
    • Monitoring of the grid parameters by the inverter.
    • Possibility of manual separation from the public grid if it fails or is deemed unstable.
    • Option of having a separate backup power circuit or several backup power circuits that are supplied even during failure of the public grid. The total load of the backup power circuits must not exceed the rated power of the inverter. Furthermore, the performance of the connected battery must also be considered.
    • If, in the event of a public grid failure, there is no manual switch to backup power mode within the first 10 minutes, this may cause the inverter and the battery to shut down. In order to then start backup power mode, manual switching must take place and a manual system start must be performed, if necessary (see chapter Manual system start on page (→)).
    • It is possible to manually reconnect the inverter and loads in the backup power circuit to the public grid once it is deemed to be stable again. The inverter only starts feed-in mode once the required grid monitoring time has passed.
    1. Backup power variant - Full Backup
    2. Manual switch to backup power 3-pin separation, e.g., Austria / all-pin separation, e.g., Germany

    Transition from grid power feed operation to backup power mode

    1. The public grid is monitored by the inverter's internal grid and system protection and by the connected Fronius Smart Meter.
    2. Failure of the public grid.
    3. The inverter takes the necessary measures according to the country standard and then switches off.
    4. The user switches changeover switch Q1 from switch position 1 (grid operation) via switch position 0 to switch position 2 (backup power mode). This disconnects the backup power circuits and the inverter from the rest of the home network and from the public grid. In the case of all-pole disconnection, the connection of ground conductor and neutral conductor is also made via the main contacts of the switch. Switch position 2 (backup power mode) is fed back to the inverter via a contact of changeover switch Q1. In addition, when changeover switch Q1 switches via switch position 0, the WSD line is interrupted. This causes the inverter to switch off immediately. This behavior is ensured via 2 contacts. The communication between the inverter and the Fronius Smart Meter is optionally interrupted via a contact. The suspended communication prevents automatic termination of backup power mode when power returns to the public grid. The inverter then remains in backup power mode until it is manually switched back again.
    5. Based on the feedback for switch position 2 and the measurements at the inverter terminals, the inverter decides that backup power mode can be started.
    6. After all required connection tests have been carried out, the inverter starts in backup power mode.
    7. All loads that are in the backup power circuits are supplied. The remaining loads are not supplied and are safely disconnected.
    1. Backup power variant - Full Backup
    2. Manual switch to backup power 3-pin separation, e.g., Austria / all-pin separation, e.g., Germany

    Transition from backup power mode to grid power feed operation

    1. The inverter is operating in backup power mode. Changeover switch Q1 is in switch position 2 (backup power mode).
    2. Public grid available again.
    3. The user switches changeover switch Q1 from switch position 2 (backup power mode) via switch position 0 to switch position 1 (grid operation). When switching via switch position 0, the inverter switches off immediately. This is ensured by the contacts of changeover switch Q1. In order to protect sensitive loads, it is recommended to remain in the zero position for at least 1 second during the switchover process from backup power mode to the public grid.
    4. The inverter is connected to the entire home network and to the public grid again.
    5. Communication between the inverter and the Fronius Smart Meter is restored.
    6. Once the grid checks required by the applicable standards have been performed, the inverter can start feeding power into the grid again.

    Installation

    General

    Quick-fastener system

    A quick-fastener system (3) is used to mount the connection area cover and front cover. The system is opened and closed with a half-rotation (180°) of the captive screw (1) into the quick-fastener spring (2).

    The system is independent of torque.

    NOTE!

    Danger when using a drill driver.

    This may result in the destruction of the quick-fastener system due to overtorque.

    Use a screwdriver (TX20).

    Do not turn the screws more than 180°.

    1. Installation

    General

    Quick-fastener system

    A quick-fastener system (3) is used to mount the connection area cover and front cover. The system is opened and closed with a half-rotation (180°) of the captive screw (1) into the quick-fastener spring (2).

    The system is independent of torque.

    NOTE!

    Danger when using a drill driver.

    This may result in the destruction of the quick-fastener system due to overtorque.

    Use a screwdriver (TX20).

    Do not turn the screws more than 180°.

    1. Installation
    2. General

    Quick-fastener system

    A quick-fastener system (3) is used to mount the connection area cover and front cover. The system is opened and closed with a half-rotation (180°) of the captive screw (1) into the quick-fastener spring (2).

    The system is independent of torque.

    NOTE!

    Danger when using a drill driver.

    This may result in the destruction of the quick-fastener system due to overtorque.

    Use a screwdriver (TX20).

    Do not turn the screws more than 180°.

    1. Installation
    2. General

    System component compatibility

    All components installed in the photovoltaic system must be compatible and have the necessary configuration options. The installed components must not restrict or negatively influence the functioning of the photovoltaic system.

    NOTE!

    Risk due to components in the photovoltaic system that are not compatible and/or have limited compatibility.

    Incompatible components may limit and/or negatively affect the operation and/or functioning of the photovoltaic system.

    Only install components recommended by the manufacturer in the photovoltaic system.

    Before installation, check the compatibility of components not expressly recommended with the manufacturer.

    1. Installation

    Installation location and position

    Choosing the location of the inverter

    Please observe the following criteria when choosing a location for the inverter:

     

    Only install on a solid, non-flammable surface.

     

    Max. ambient temperatures:
    -25 °C - +60 °C

     

    Relative humidity:
    0 - 100%

     

    When installing the inverter in a switch cabinet or similar closed environment, it is necessary to make sure that the hot air that develops will be dissipated by forced-air ventilation.

    For more detailed information on inverter dimensions, refer to the chapter headed Dimensions of the inverter on page (→).

    When installing the inverter on the outer walls of cattle sheds, it is important to maintain a minimum clearance of 2 m between all sides of the inverter and the ventilation and building openings.

    The following substrates are permissible for installation:
    • Walls (corrugated metal walls [mounting rails], brick walls, concrete walls, or other non-flammable surfaces sufficiently capable of bearing loads)
    • Mast or beam (installed using mounting rails, behind the PV modules directly on the PV mounting system)
    • Flat roofs (if this is for a film roof, make sure that the films comply with the fire protection requirements and are not highly flammable. Ensure compliance with the national provisions.)
    • Covered parking lot roofs (no overhead installation)

    The inverter is suitable for indoor installation.

    The inverter is suitable for outdoor installation.

    Because of its IP 66 protection class, the inverter is not susceptible to water spray from any direction and can also be operated in moist environments.

    In order to keep inverter heating as low as possible, do not expose the inverter to direct sunlight.

    The inverter should be installed in a protected location, e.g., near the PV modules or under an overhanging roof.

    The inverter must not be installed or operated at more than 4000 m above sea level.

    Do not install the inverter:
    • Where it may be exposed to ammonia, corrosive gases, acids, or salts (e.g., fertilizer storage areas, vent openings for livestock stables, chemical plants, tanneries)

    During certain operating phases the inverter may produce a slight noise. For this reason it should not be installed in an occupied living area.

    Do not install the inverter in:
    • Areas where there is an increased risk of accidents from farm animals (e.g., horses, cattle, sheep, pigs)
    • Stables or adjoining areas
    • Storage areas for hay, straw, chaff, animal feed, and fertilizers

    The inverter is essentially designed to be dustproof (IP 66). In areas of high dust accumulation, dust deposits may collect on the cooling surfaces, and thus impair the thermal performance. Regular cleaning is required in this case; see the chapter headed Operation in dusty environments on page (→). We therefore recommend not installing the inverter in areas and environments with high dust accumulation.

    Do not install the inverter in:
    • Greenhouses
    • Storage or processing areas for fruit, vegetables, or viticulture products
    • Areas used in the preparation of grain, green fodder, or animal feeds
    1. Installation
    2. Installation location and position

    Choosing the location of the inverter

    Please observe the following criteria when choosing a location for the inverter:

     

    Only install on a solid, non-flammable surface.

     

    Max. ambient temperatures:
    -25 °C - +60 °C

     

    Relative humidity:
    0 - 100%

     

    When installing the inverter in a switch cabinet or similar closed environment, it is necessary to make sure that the hot air that develops will be dissipated by forced-air ventilation.

    For more detailed information on inverter dimensions, refer to the chapter headed Dimensions of the inverter on page (→).

    When installing the inverter on the outer walls of cattle sheds, it is important to maintain a minimum clearance of 2 m between all sides of the inverter and the ventilation and building openings.

    The following substrates are permissible for installation:
    • Walls (corrugated metal walls [mounting rails], brick walls, concrete walls, or other non-flammable surfaces sufficiently capable of bearing loads)
    • Mast or beam (installed using mounting rails, behind the PV modules directly on the PV mounting system)
    • Flat roofs (if this is for a film roof, make sure that the films comply with the fire protection requirements and are not highly flammable. Ensure compliance with the national provisions.)
    • Covered parking lot roofs (no overhead installation)

    The inverter is suitable for indoor installation.

    The inverter is suitable for outdoor installation.

    Because of its IP 66 protection class, the inverter is not susceptible to water spray from any direction and can also be operated in moist environments.

    In order to keep inverter heating as low as possible, do not expose the inverter to direct sunlight.

    The inverter should be installed in a protected location, e.g., near the PV modules or under an overhanging roof.

    The inverter must not be installed or operated at more than 4000 m above sea level.

    Do not install the inverter:
    • Where it may be exposed to ammonia, corrosive gases, acids, or salts (e.g., fertilizer storage areas, vent openings for livestock stables, chemical plants, tanneries)

    During certain operating phases the inverter may produce a slight noise. For this reason it should not be installed in an occupied living area.

    Do not install the inverter in:
    • Areas where there is an increased risk of accidents from farm animals (e.g., horses, cattle, sheep, pigs)
    • Stables or adjoining areas
    • Storage areas for hay, straw, chaff, animal feed, and fertilizers

    The inverter is essentially designed to be dustproof (IP 66). In areas of high dust accumulation, dust deposits may collect on the cooling surfaces, and thus impair the thermal performance. Regular cleaning is required in this case; see the chapter headed Operation in dusty environments on page (→). We therefore recommend not installing the inverter in areas and environments with high dust accumulation.

    Do not install the inverter in:
    • Greenhouses
    • Storage or processing areas for fruit, vegetables, or viticulture products
    • Areas used in the preparation of grain, green fodder, or animal feeds
    1. Installation
    2. Installation location and position

    Choosing the location of third-party batteries

    IMPORTANT!
    Refer to the manufacturer's documents for the suitable location for third-party batteries.

    1. Installation
    2. Installation location and position

    Installation position of inverter

    The inverter is suitable for vertical installation on a vertical wall or column.

    The inverter is suitable for a horizontal installation position.

    The inverter is suitable for installation on a sloping surface.

    Do not install the inverter on a sloping surface with its connection sockets at the top.

    Do not install the inverter at an angle on a vertical wall or column.

    Do not install the inverter horizontally on a vertical wall or pillar.

    Do not install the inverter on a vertical wall or pillar with its connection sockets facing upwards.

    Do not install the inverter overhanging with the connection sockets at the top.

    Do not install the inverter overhanging with the connection sockets at the bottom.

    Do not install the inverter on the ceiling.

    1. Installation

    Installing the mounting bracket and attaching the inverter

    Selecting the mounting material

    Use the corresponding fixing materials depending on the subsurface and observe the screw dimension recommendations for the mounting bracket.
    The installer is responsible for selecting the right type of fixing.

    1. Installation
    2. Installing the mounting bracket and attaching the inverter

    Selecting the mounting material

    Use the corresponding fixing materials depending on the subsurface and observe the screw dimension recommendations for the mounting bracket.
    The installer is responsible for selecting the right type of fixing.

    1. Installation
    2. Installing the mounting bracket and attaching the inverter

    Properties of the mounting bracket

    The mounting bracket (illustration) is also used as the gage.

    The pre-drilled holes on the mounting bracket are intended for screws with a thread diameter of 6-8 mm (0.24-0.32 inches).

    Unevenness on the installation surface (for example, coarse-grained plaster) is largely counterbalanced by the mounting bracket.

    1. Installation
    2. Installing the mounting bracket and attaching the inverter

    Do not deform the mounting bracket

    NOTE!

    When attaching the mounting bracket to the wall or to a column, make sure that the mounting bracket is not deformed.

    A deformed mounting bracket may make it difficult to clip/swivel the inverter into position.

    1. Installation
    2. Installing the mounting bracket and attaching the inverter

    Fitting the mounting bracket to a wall

    IMPORTANT!
    When installing the mounting bracket, make sure that it is installed with the arrow pointing upwards.

    1
    2
    3
    1. Installation
    2. Installing the mounting bracket and attaching the inverter

    Installing the mounting bracket on a mast or beam

    When installing the inverter on a mast or beam, Fronius recommends using the "Pole clamp" (order no. SZ 2584.000) mounting kit from Rittal GmbH.

    The "Pole clamp" kit covers the following dimensions:

    • Rectangular mast or beam with a side length of 50-150 mm (1.97-5.91 inches)
    • Round mast or beam with a diameter of 40-190 mm (1.57-7.48 inches)


    1. Installation
    2. Installing the mounting bracket and attaching the inverter

    Attaching the mounting bracket to mounting rails

    IMPORTANT!
    The mounting bracket must be affixed at a minimum of four points.

    1. Installation
    2. Installing the mounting bracket and attaching the inverter

    Attaching the inverter to the mounting bracket

    There are integrated grips on the side of the inverter which facilitate lifting/attaching.

     

    1

    Clip the inverter into the mounting bracket from above. The connections must point downwards.

    Push the lower part of the inverter into the snap-in tabs of the mounting bracket until the inverter audibly clicks into place on both sides.

    Check that the inverter is correctly positioned on both sides.

    1. Installation

    Requirements for connecting the inverter

    Different cable types

    Single-core

    Multi-stranded

    Fine-stranded

    Fine-stranded with ferrule and collar

    Fine-stranded with ferrule without collar

    Single-core cable type
    Multi-stranded cable type
    Fine-stranded cable type
    Fine-stranded with ferrule and collar cable type
    Fine-stranded with ferrule without collar cable type
    1. Installation
    2. Requirements for connecting the inverter

    Different cable types

    Single-core

    Multi-stranded

    Fine-stranded

    Fine-stranded with ferrule and collar

    Fine-stranded with ferrule without collar

    Single-core cable type
    Multi-stranded cable type
    Fine-stranded cable type
    Fine-stranded with ferrule and collar cable type
    Fine-stranded with ferrule without collar cable type
    1. Installation
    2. Requirements for connecting the inverter

    Permissible cables for the electrical connection

    Round copper conductors can be connected to the terminals of the inverter as described below.

    Grid connections with push-in terminal*
    Select a sufficiently large cable cross-section based on the actual device output.

    Number of pins

    5

    2.5-10 mm2

    2.5-10 mm2

    2.5-10 mm2

    2.5-6 mm2

    2.5-6 mm2

    Grid connections backup power with push-in terminal*
    Select a sufficiently large cable cross-section based on the actual device output.

    Number of pins

    3

    1.5-10 mm2

    1.5-10 mm2

    1.5-10 mm2

    1.5-6 mm2

    1.5-6 mm2

    PV/BAT connections with push-in terminal**
    Select a sufficiently large cable cross-section based on the actual device output.

    Number of pins

    2 x 4

    4-10 mm2

    4-10 mm2

    4-10 mm2

    4-6 mm2

    4-6 mm2

    Ground electrode terminal
    Select a sufficiently large cable cross-section based on the actual device output.

    Number of pins

    2

    2.5-16 mm2

    2.5-16 mm2

    2.5-16 mm2

    2.5-16 mm2

    2.5-16 mm2

    4

    2.5-10 mm2

    2.5-10 mm2

    2.5-10 mm2

    2.5-10 mm2

    2.5-10 mm2

    *
    According to product standard IEC 62109, the ground conductor must correspond to the phase cross-section for phase cross-sections ≤16 mm², while for phase cross-sections >16 mm², it must be at least 16 mm².
    For a conductor cross-section of 1.5 mm2, the maximum permissible cable length is 100 m.
    **
    The cable cross-section must be dimensioned in accordance with the installation situation and the specifications of the battery manufacturer.
    1. Installation
    2. Requirements for connecting the inverter

    Permitted cables for the data communication connection

    Cables with the following design can be connected to the terminals of the inverter:
    • Copper: round, solid
    • Copper: round, fine-stranded

    IMPORTANT!
    If several single conductors are connected to an input of the push-in terminals, connect the single conductors with a corresponding ferrule.

    WSD connections with push-in terminal

    Distance

    Stripping length

    Cable recommendation

    100 m 109 yd

    10 mm
    0.39 inch

    0.14 - 1.5 mm2
    AWG 26 - 16

    0.14 - 1.5 mm2
    AWG 26 - 16

    0.14 - 1 mm2
    AWG 26 - 18

    0.14 - 1.5 mm2
    AWG 26 - 16

    min. CAT 5 UTP (unshielded twisted pair)

    Modbus connections with push-in terminal

    Distance

    Stripping length

    Cable recommendation

    300 m 328 yd

    10 mm 
    0.39 inch

    0.14 - 1.5 mm2
    AWG 26 - 16

    0.14 - 1.5 mm2
    AWG 26 - 16

    0.14 - 1 mm2
    AWG 26 - 18

    0.14 - 1.5 mm2
    AWG 26 - 16

    min. CAT 5 STP (shielded twisted pair)

    IO connections with push-in terminal

    Distance

    Stripping length

    Cable recommendation

    30 m
    32 yd

    10 mm 
    0.39 inch

    0.14 - 1.5 mm2
    AWG 26 - 16

    0.14 - 1.5 mm2
    AWG 26 - 16

    0.14 - 1 mm2
    AWG 26 - 18

    0.14 - 1.5 mm2
    AWG 26 - 16

    Single conductors possible

    LAN connections

    Fronius recommends using at least CAT 5 STP (shielded twisted pair) cables and a maximum distance of 100 m (109 yd).

    1. Installation
    2. Requirements for connecting the inverter

    Cable diameter of the AC cable

    For a standard M32 cable gland with a reducer:
    7-15 mm

    For a standard M32 cable gland without a reducer:

    11-21 mm
    (with a cable diameter of less than 11 mm, the strain-relief force is reduced from 100 N to a maximum of 80 N)

    With cable diameters greater than 21 mm, the M32 cable gland must be replaced by an M32 cable gland with a larger clamping area—item number: 42,0407,0780—strain-relief device M32 x 1.5 KB 18-25.

    1. Installation
    2. Requirements for connecting the inverter

    Cable diameter of the DC cable

    Cable diameter for the strain-relief device: max. 9 mm.
    .Cable diameter for the connection to the push-in terminal: max. 6 mm

    IMPORTANT!
    For double-insulated cables with a cable diameter over 6 mm, the external insulation layer must be removed to connect to the push-in terminal.

    1. Installation
    2. Requirements for connecting the inverter

    Maximum alternating current fuse protection

    NOTE!

    The national regulations of the grid operator or other factors may require a residual current circuit breaker in the AC connection lead.

    For this situation, a type A residual current circuit breaker is generally adequate. Nevertheless, false alarms can be triggered for the type A residual current circuit breaker in individual cases and depending on local conditions. For this reason, in accordance with national legislation, Fronius recommends that a residual current circuit breaker with a tripping current of at least 100 mA suitable for frequency converters be used.

    IMPORTANT!
    As a maximum, the inverter can be used with an automatic circuit breaker 32 A.

    Inverter

    Phases

    AC output

    Maximum fuse rating

    Recommended fuse rating

    Fronius Symo GEN24 6 kW

    3

    6,000 W

    32 A

    16 A

    Fronius Symo GEN24 8 kW

    3

    8,000 W

    32 A

    25 A

    Fronius Symo GEN24 10 kW

    3

    10,000 W

    32 A

    32 A

    1. Installation

    Connecting the inverter to the public grid (AC side)

    Safety

    WARNING!

    Danger from incorrect operation and work that is not carried out properly.

    This can result in severe personal injury and damage to property.

    Read the Installation Instructions and Operating Instructions before installing and commissioning the equipment.

    Only qualified personnel are authorized to commission the inverter and only within the scope of the respective technical regulations.

    WARNING!

    Danger from grid voltage and DC voltage from PV modules that are exposed to light.

    An electric shock can be fatal.

    Prior to any connection work, ensure that the inverter is de-energized on the AC side and the DC side.

    Only an authorized electrical engineer is permitted to connect this equipment to the public grid.

    WARNING!

    Danger from damaged and/or contaminated terminals.

    This can result in severe personal injury and damage to property.

    Prior to connection work, check the terminals for damage and contamination.

    Remove any contamination while the equipment is de-energized.

    Have defective terminals replaced by an authorized specialist.

    1. Installation
    2. Connecting the inverter to the public grid (AC side)

    Safety

    WARNING!

    Danger from incorrect operation and work that is not carried out properly.

    This can result in severe personal injury and damage to property.

    Read the Installation Instructions and Operating Instructions before installing and commissioning the equipment.

    Only qualified personnel are authorized to commission the inverter and only within the scope of the respective technical regulations.

    WARNING!

    Danger from grid voltage and DC voltage from PV modules that are exposed to light.

    An electric shock can be fatal.

    Prior to any connection work, ensure that the inverter is de-energized on the AC side and the DC side.

    Only an authorized electrical engineer is permitted to connect this equipment to the public grid.

    WARNING!

    Danger from damaged and/or contaminated terminals.

    This can result in severe personal injury and damage to property.

    Prior to connection work, check the terminals for damage and contamination.

    Remove any contamination while the equipment is de-energized.

    Have defective terminals replaced by an authorized specialist.

    1. Installation
    2. Connecting the inverter to the public grid (AC side)

    Connecting the inverter to the public grid (AC side)

    NOTE!

    The neutral conductor must be connected in order to operate the inverter.

    It is not possible to operate the inverter in unearthed grids, such as IT grids (insulated grids without ground conductor).

    Make sure that the grid's neutral conductor is earthed.

    Ihr Browser kann diesen Film leider nicht anzeigen.
    1.
    Tools required: TX20 screwdriver
    2.
    Make the PE ground conductor longer and lay it in a loop to allow for movement.
    3.
    Tools required: Crimping tool
    4.
    Only one conductor may be connected to each pin.
    1

    Turn off the automatic circuit breaker. Set the DC disconnector to the "Off" switch position.

    2

    Loosen the 5 screws of the connection area cover by rotating them 180° to the left using a screwdriver (TX20).
    Remove the connection area cover from the device.

    3

    Press the lock on the back of the terminal and remove the AC terminal.
    Route the mains cable from below through the cable gland on the right side and the ferrite core.

    IMPORTANT!
    The ground conductor should not be routed through the ferrite core, it should be dimensioned longer and laid in a loop to allow for movement so that it is strained last in the event of failure of the cable gland.
    For more information on the cable gland, see Cable diameter of the AC cable on page(→).

    4

    Strip the insulation of the single conductors by 12 mm. Select the cable cross-section in accordance with the instructions in Permissible cables for the electrical connection on page (→).
    Lift to open the terminal's operating lever and insert the stripped single conductor into the slot provided as far as it will go. Then close the operating lever until it engages.

    IMPORTANT!
    Only one conductor may be connected to each pin. The AC cables can be connected to the AC terminal without ferrules.

    5
    L1
    Phase conductor
    L2
    Phase conductor
    L3
    Phase conductor
    N
    Neutral conductor
    PE
    Ground conductor
    6

    Insert the AC terminal into the AC slot until it engages. Fasten the union nut of the cable gland with a torque of 6‑7 Nm.

    1. Installation

    Connecting solar module strings to the inverter

    General comments regarding PV modules

    To enable suitable PV modules to be chosen and to use the inverter as efficiently as possible, it is important to bear the following points in mind:

    • If insolation is constant and the temperature is falling, the open-circuit voltage of the PV modules will increase. The open-circuit voltage must not exceed the maximum permissible system voltage. If the open-circuit voltage exceeds the specified values, the inverter will be destroyed and all warranty claims will be forfeited.
    • The temperature coefficients on the data sheet of the PV modules must be observed.
    • Exact values for sizing the PV modules can be obtained using suitable calculation tools, such as the Fronius Solar.creator.

    IMPORTANT!
    Before connecting up the PV modules, check that the voltage for the PV modules specified by the manufacturer corresponds to the actual measured voltage.

    IMPORTANT!
    The PV modules connected to the inverter must comply with the IEC 61730 Class A standard.

    IMPORTANT!
    Solar module strings must not be earthed.

    1. Installation
    2. Connecting solar module strings to the inverter

    General comments regarding PV modules

    To enable suitable PV modules to be chosen and to use the inverter as efficiently as possible, it is important to bear the following points in mind:

    • If insolation is constant and the temperature is falling, the open-circuit voltage of the PV modules will increase. The open-circuit voltage must not exceed the maximum permissible system voltage. If the open-circuit voltage exceeds the specified values, the inverter will be destroyed and all warranty claims will be forfeited.
    • The temperature coefficients on the data sheet of the PV modules must be observed.
    • Exact values for sizing the PV modules can be obtained using suitable calculation tools, such as the Fronius Solar.creator.

    IMPORTANT!
    Before connecting up the PV modules, check that the voltage for the PV modules specified by the manufacturer corresponds to the actual measured voltage.

    IMPORTANT!
    The PV modules connected to the inverter must comply with the IEC 61730 Class A standard.

    IMPORTANT!
    Solar module strings must not be earthed.

    1. Installation
    2. Connecting solar module strings to the inverter

    Safety

    WARNING!

    Danger from incorrect operation and work that is not carried out properly.

    This can result in severe personal injury and damage to property.

    The commissioning, maintenance, and service work in the inverter's power stage set may only be carried out by Fronius-trained service personnel in accordance with the technical specifications.

    Read the installation instructions and operating instructions before installing and commissioning the equipment.

    WARNING!

    Danger from mains voltage and DC voltage from PV modules that are exposed to light.

    This can result in severe personal injury and damage to property.

    All connection, maintenance, and service work should only be carried out when the AC and DC sides have been disconnected from the inverter and are de-energized.

    Only an authorized electrical engineer is permitted to connect this equipment to the public grid.

    WARNING!

    Danger of an electric shock due to improperly connected terminals/PV plug connectors.

    An electric shock can be fatal.

    When connecting, ensure that each pole of a string is routed via the same PV input, e.g.:
    + pole string 1 to the input PV 1.1+ and - pole string 1 to the input PV 1.1-

    WARNING!

    Danger from damaged and/or contaminated terminals.

    This can result in severe personal injury and damage to property.

    Prior to connection work, check the terminals for damage and contamination.

    Remove any contamination while the equipment is de-energized.

    Have defective terminals replaced by an authorized specialist company.

    1. Installation
    2. Connecting solar module strings to the inverter

    PV Generator, general

    Two independent PV inputs (PV 1 and PV 2) are available. These inputs can be connected to a different number of modules.

    When starting for the first time, set up the PV Generator in accordance with the respective configuration (can also be carried out at a later date in the Device Configuration > Components menu area).

    1. Installation
    2. Connecting solar module strings to the inverter

    Module array configuration
    6-10 kW

    IMPORTANT!
    The installation must be carried out in accordance with the nationally applicable standards and directives. If the Arc Fault Circuit Interrupter integrated in the inverter is used for the requirement according to IEC 63027 for arc detection, the solar module strings must not be combined in front of the inverter.

    Current less than or equal to 25 A (Idcmax).

    Module array settings:
    PV 1: ON
    PV 2: OFF

    Combined solar module strings with total current less than or equal to 25 A (Idcmax).

    Module array settings:
    PV 1: ON
    PV 2: OFF

    Combined solar module strings with total current greater than 25 A (Idcmax).

    Module array settings:
    PV 1: ON
    PV 2: OFF
    PV 1 + PV 2 (connected in parallel): ON

    IMPORTANT!
    The maximum current load of a single terminal is 25 A. PV‑connection strings with a total current of more than 25 A must be split between both PV inputs upstream of the terminals (ISC max ≤ 60 A). The plug connection for splitting the total current must be sufficiently dimensioned, suitable, and correctly installed. Splitting the current by bridging from PV 1 to PV 2 at the terminal is not permitted.

    PV 1 less than or equal to 40 A (ISC PV1)
    PV 2 less than or equal to 20 A (ISC PV2)

    Module array settings:
    PV 1: ON
    PV 2: ON

    1. Installation
    2. Connecting solar module strings to the inverter

    Connecting solar module strings to the inverter

    Ihr Browser kann diesen Film leider nicht anzeigen.
    1.
    WARNING! An electric shock can be fatal.
    2.
    Push the cables through the DC bushing before stripping the insulation.
    3.
    Tools required: Crimping tool
    4.
    Only one conductor may be connected to each pin.
    1
    2

    Push the DC cables through the DC bushings by hand.

    IMPORTANT!
    Push the cables through the DC bushing before stripping them in order to avoid twisting/bending single wires.

    3
    4
    5

    Select the cable cross-section in accordance with the instructions in Permissible cables for the electrical connection from page (→).
    Strip the insulation of the single conductors by 12 mm. Lift to open the terminal's operating lever and insert the stripped single conductor into the slot provided, in each case as far as it will go. Then close the operating lever until it engages.

    WARNING!

    Danger from loose and/or incorrectly clamped single conductors in the terminal.

    This can result in severe personal injury and damage to property.

    Only connect one single conductor at each slot provided in the terminal.

    Check that the single conductors are secure in the terminal.

    Make sure that the single conductor has been fully inserted into the terminal and that no single wires are protruding out of the terminal.

    6

     

    7
    8

    Use a suitable measuring instrument to check the voltage and polarity of the DC cabling. Remove both DC terminals from the slots.

    CAUTION!

    Danger due to polarity reversal at the terminals.

    This may result in severe damage to the inverter.

    Use a suitable measuring instrument to check the polarity of the DC cabling.

    Use a suitable measuring instrument to check the voltage (max. 1000 VDC)

    9

    Insert the DC terminals into the respective slot until they engage. Fasten the screws of the strain-relief device to the housing using a screwdriver (TX20) and a torque of 1.3 - 1.5 Nm.

    NOTE!

    Risk due to overtorque at the strain-relief device.

    Damage to the strain-relief device may result.

    Do not use a drill driver.

    1. Installation

    Connecting the battery to the inverter

    Safety

    WARNING!

    Danger due to incorrect operation and incorrectly performed work.

    This can result in serious injury and damage to property.

    Commissioning as well as maintenance and service work on the inverter and battery must only be carried out by service personnel trained by the respective inverter or battery manufacturer and only within the scope of the respective technical regulations.

    Read the Installation and Operating Instructions provided by the respective manufacturer before installing and commissioning the equipment.

    WARNING!

    Danger due to mains voltage and DC voltage from solar modules that are exposed to light and from batteries.

    This can result in serious injury and damage to property.

    Ensure that the AC and DC side of the inverter and the battery are de-energized before carrying out any connection, maintenance, or service tasks.

    Only an authorized electrical engineer is permitted to connect this equipment to the public grid.

    WARNING!

    Danger due to damaged and/or contaminated terminals.

    This can result in serious injury and damage to property.

    Before making any connections, check the terminals for damage and contamination.

    Remove contamination in the de-energized state.

    Have defective terminals repaired by an authorized specialist.

    1. Installation
    2. Connecting the battery to the inverter

    Safety

    WARNING!

    Danger due to incorrect operation and incorrectly performed work.

    This can result in serious injury and damage to property.

    Commissioning as well as maintenance and service work on the inverter and battery must only be carried out by service personnel trained by the respective inverter or battery manufacturer and only within the scope of the respective technical regulations.

    Read the Installation and Operating Instructions provided by the respective manufacturer before installing and commissioning the equipment.

    WARNING!

    Danger due to mains voltage and DC voltage from solar modules that are exposed to light and from batteries.

    This can result in serious injury and damage to property.

    Ensure that the AC and DC side of the inverter and the battery are de-energized before carrying out any connection, maintenance, or service tasks.

    Only an authorized electrical engineer is permitted to connect this equipment to the public grid.

    WARNING!

    Danger due to damaged and/or contaminated terminals.

    This can result in serious injury and damage to property.

    Before making any connections, check the terminals for damage and contamination.

    Remove contamination in the de-energized state.

    Have defective terminals repaired by an authorized specialist.

    1. Installation
    2. Connecting the battery to the inverter

    Connecting the battery on the DC side

    CAUTION!

    Danger due to operation of the battery above the permissible altitude specified by the manufacturer.

    Operating the battery above the permissible altitude can result in restricted operation, loss of operation, and unsafe states of the battery.

    Adhere to the manufacturer's instructions regarding the permissible altitude.

    Operate the battery only at the altitude specified by the manufacturer.

    IMPORTANT!
    Prior to installing a battery, ensure that the battery is switched off. The max. DC cable length for the installation of third-party batteries must be taken into account according to the specifications of the manufacturer, see chapter Suitable batteries on page (→).

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    1.
    Tools required: Screwdriver TX20
    2.
    Connect the ground conductor of the battery at an external point.
    3.
    Only one conductor may be connected to each pin.
    4.
    Use a suitable measuring instrument to check the polarity of the DC cabling when the battery is switched on.
    5.
    Tools required: Screwdriver TX20
    1

    Push the battery cables through the DC bushings by hand.

    * The battery ground conductor must be connected externally (e.g., switch cabinet). When connecting an LG FLEX battery, the battery ground conductor can be connected in the inverter (see chapter Connecting the LG FLEX ground conductor on page (→). Observe the minimum cross-section of the battery ground conductor.

    IMPORTANT!
    Push the cables through the DC bushing before stripping them in order to avoid twisting/bending single wires.

    2
    3
    * See the battery manufacturer's operating instructions for the minimum cable cross-section.

    Select the cable cross-section in accordance with the instructions in Permissible cables for the electrical connection from page (→).
    Strip the insulation of the single conductors by 12 mm. Lift to open the terminal's operating lever and insert the stripped single conductor into the slot provided, in each case as far as it will go. Then close the operating lever until it engages.

    WARNING!

    Danger from loose and/or incorrectly clamped single conductors in the terminal.

    This can result in severe personal injury and damage to property.

    Only connect one single conductor at each slot provided in the terminal.

    Check that the single conductors are secure in the terminal.

    Make sure that the single conductor has been fully inserted into the terminal and that no single strands are protruding out of the terminal.

    4
    5

    CAUTION!

    Danger due to overvoltage when using other slots on the terminal.

    This may result in damage to the battery and/or the PV modules due to discharge.

    Only use the slots labelled 'BAT' for connecting the battery.

     

    6

    CAUTION!

    Danger due to polarity reversal at the terminals.

    Serious damage to the PV system may result.

    Use a suitable measuring instrument to check the polarity of the DC cabling when the battery is switched on.

    The maximum voltage for the battery input must not be exceeded (see Technical data on page (→)).

    7

    Insert the DC terminals into the respective slot until they engage.

    8

    Fasten the screws of the cable guide to the housing using a screwdriver (TX20) and a torque of 1.3 - 1.5 Nm.

    NOTE!

    Risk due to overtorque at the strain-relief device.

    Damage to the strain-relief device may result.

    Do not use a drill driver.

    IMPORTANT!
    Information for connection on the battery side can be found in the installation instructions from the relevant manufacturer.

    1. Installation
    2. Connecting the battery to the inverter

    Connecting the LG FLEX ground conductor

    1

    Route the battery ground conductor into the integrated cable duct of the connection area divider and into the AC connection area.

    2

    Fasten the battery ground conductor to the second input of the ground electrode terminal from the top using a screwdriver (TX20) and a torque of 1.8-2 Nm.

    IMPORTANT!
    Information for connection on the battery side can be found in the Installation Instructions from the relevant manufacturer.

    1. Installation

    Connecting backup power - PV Point (OP)

    Safety

    WARNING!

    Danger due to work that has been carried out incorrectly.

    This can result in serious injury and damage to property.

    Installing and connecting an option must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.

    Follow the safety rules.

    WARNING!

    Danger due to damaged and/or contaminated terminals.

    This can result in serious injury and damage to property.

    Before making any connections, check the terminals for damage and contamination.

    Remove contamination in the de-energized state.

    Have defective terminals repaired by an authorized specialist.

    NOTE!

    During the switch from grid-connected operation to backup power mode, momentary interruptions will occur. The PV Point output requires PV power from the solar modules or a battery to power the connected loads.

    Connected loads will not be supplied with power during the switchover.

    Do not connect any loads that require an uninterruptible supply ( e.g., IT networks, life-sustaining medical devices).

    IMPORTANT!
    The valid national laws, standards, and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied.
    It is highly recommended that the specific installation be agreed with the grid operator and explicitly approved by this operator. This obligation applies to system constructors in particular (e.g., installers).

    1. Installation
    2. Connecting backup power - PV Point (OP)

    Safety

    WARNING!

    Danger due to work that has been carried out incorrectly.

    This can result in serious injury and damage to property.

    Installing and connecting an option must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.

    Follow the safety rules.

    WARNING!

    Danger due to damaged and/or contaminated terminals.

    This can result in serious injury and damage to property.

    Before making any connections, check the terminals for damage and contamination.

    Remove contamination in the de-energized state.

    Have defective terminals repaired by an authorized specialist.

    NOTE!

    During the switch from grid-connected operation to backup power mode, momentary interruptions will occur. The PV Point output requires PV power from the solar modules or a battery to power the connected loads.

    Connected loads will not be supplied with power during the switchover.

    Do not connect any loads that require an uninterruptible supply ( e.g., IT networks, life-sustaining medical devices).

    IMPORTANT!
    The valid national laws, standards, and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied.
    It is highly recommended that the specific installation be agreed with the grid operator and explicitly approved by this operator. This obligation applies to system constructors in particular (e.g., installers).

    1. Installation
    2. Connecting backup power - PV Point (OP)

    Installation

    NOTE!

    All loads that have to be supplied via the OP terminal must be protected by means of a residual current circuit breaker.

    In order to ensure the residual current circuit breaker operates properly, a connection must be established between the neutral conductor N' (OP) and ground.

    For the circuit diagram recommended by Fronius, see Appendix: Emergency power terminal—PV Point (OP) on page (→).

    1

    Switch off the automatic circuit breaker and DC disconnector. Turn the DC disconnector to the "off" switch setting.

    2

    Loosen the 5 screws of the connection area cover by rotating them 180° to the left using a screwdriver (TX20).
    Remove the connection area cover from the device.

    CAUTION!

    Danger from faulty or incorrect bores.

    This may lead to injuries to the eyes and hands as a result of flying debris and sharp edges, as well as damage to the inverter.

    When drilling, wear suitable protective goggles.

    Only use a step drill when drilling.

    Ensure that nothing on the inside of the device is damaged (e.g., the connection block).

    Adapt the diameter of the bore to match the corresponding connection.

    Deburr the bores using a suitable tool.

    Remove the drilling residues from the inverter.

    3

    Drill out the optional cable guide with a step drill.

    4

    Insert the cable gland into the bore and fasten it using the torque specified by the manufacturer.

    5

    Guide the mains cable through the cable gland from below.
    Remove the OP terminal.

    6

    Strip the insulation of the single conductors by 12 mm.
    The cable cross-section must be between 1.5 mm2 and 10 mm2. Lift to open the terminal's operating lever and insert the stripped single conductor into the slot provided, all the way up to the stop. Then close the operating lever until it engages.

    WARNING!

    Danger from loose and/or incorrectly clamped single conductors in the terminal.

    This can result in severe personal injury and damage to property.

    Only connect one single conductor at each slot provided in the terminal.

    Check that the single conductors are secure in the terminal.

    Make sure that the single conductor has been fully inserted into the terminal and that no single wires are protruding out of the terminal.

    7
    L1´
    Phase conductor
    N´
    Neutral conductor
    N´
    PEN conductor

    IMPORTANT!
    The PEN conductor must be produced with ends that are permanently marked blue, according to the national provisions, and have a cross-section of 10 mm².

    8

    Fasten the ground conductor and PEN conductor to the ground electrode terminal using a screwdriver (TX20) and a torque of 1.8 - 2 Nm.

    9

    Insert the OP terminal into the OP slot until it engages. Tighten the union nut of the cable gland to the torque specified by the manufacturer.

    1. Installation
    2. Connecting backup power - PV Point (OP)

    Testing backup power mode

    Testing backup power mode is recommended:
    • During the initial installation and configuration
    • After working on the switch cabinet
    • During ongoing operation (recommendation: at least once a year)

    For test mode, a battery charge of min. 30% is recommended.

    A description on how to run test mode can be found in the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365).

    1. Installation

    Connecting backup power - Full Backup

    Safety

    WARNING!

    Danger from incorrect installation, commissioning, operation, or incorrect use.

    This can result in severe personal injury/damage to property.

    Only trained and qualified personnel are authorized to install and commission the system, and only within the scope of the technical regulations.

    The Installation and Operating Instructions must be read carefully prior to use.

    If anything is unclear, contact your vendor immediately.

    IMPORTANT!
    The valid national laws, standards, and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied.
    It is highly recommended to coordinate the concrete examples implemented and in particular the specific installation with the grid operator to obtain their explicit approval. This obligation applies to system constructors in particular (e.g., installers).
    The examples suggested here show a backup power supply with or without an external protection relay (external grid and system protection unit). The respective grid operator decides whether an external protection relay must be used or not.

    IMPORTANT!
    An uninterruptible power supply (UPS) may only be used to supply individual loads (e.g., computers). Feeding into the power supply of the house network is not permitted. The Installation and Operating Instructions must be read carefully prior to use. If anything is unclear, contact your vendor immediately.

    The examples given in this document (in particular cabling variants and circuit diagrams) are suggestions only. These examples have been carefully developed and tested. They can therefore be used as a basis for real-life installation. Anyone following or using these examples does so at their own risk.

    1. Installation
    2. Connecting backup power - Full Backup

    Safety

    WARNING!

    Danger from incorrect installation, commissioning, operation, or incorrect use.

    This can result in severe personal injury/damage to property.

    Only trained and qualified personnel are authorized to install and commission the system, and only within the scope of the technical regulations.

    The Installation and Operating Instructions must be read carefully prior to use.

    If anything is unclear, contact your vendor immediately.

    IMPORTANT!
    The valid national laws, standards, and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied.
    It is highly recommended to coordinate the concrete examples implemented and in particular the specific installation with the grid operator to obtain their explicit approval. This obligation applies to system constructors in particular (e.g., installers).
    The examples suggested here show a backup power supply with or without an external protection relay (external grid and system protection unit). The respective grid operator decides whether an external protection relay must be used or not.

    IMPORTANT!
    An uninterruptible power supply (UPS) may only be used to supply individual loads (e.g., computers). Feeding into the power supply of the house network is not permitted. The Installation and Operating Instructions must be read carefully prior to use. If anything is unclear, contact your vendor immediately.

    The examples given in this document (in particular cabling variants and circuit diagrams) are suggestions only. These examples have been carefully developed and tested. They can therefore be used as a basis for real-life installation. Anyone following or using these examples does so at their own risk.

    1. Installation
    2. Connecting backup power - Full Backup

    Automatic switch to backup power 3-pole disconnection e.g., Austria or Australia

    IMPORTANT!
    The cabling variant required by the utility must be clarified with the utility.

    Circuit diagrams
    • Appendix: Automatic switch to backup power 3-pin single FRT-capable separation - e.g., Austria on page (→).
    • Appendix: Automatic switch to backup power 3-pin single separation - e.g., Australia on page (→).

    Cabling of the backup power circuits and non-backup power circuits:
    If not all the loads in the home need to be supplied in a backup power situation, the circuits need to be divided into backup power circuits and non-backup power circuits. The total load of the backup power circuits must not exceed the rated power of the inverter.

    The backup power circuits and non-backup power circuits must be fused separately according to the required safety measures (e.g., residual current circuit breaker, automatic circuit breaker).
    In backup power mode, only the backup power circuits are disconnected from the grid at 3 poles by contactor K1. In this case the rest of the home network is not supplied.

    The following points regarding cabling must be considered:
    • The main contacts of contactor K1 must be installed between the Fronius Smart Meter and the inverter or the residual current circuit breakers of the backup power circuits.
    • The supply voltage for contactor K1 is provided by the public grid and must be connected to phase 1 (L1) downstream of the Fronius Smart Meter and fused accordingly.
    • An NC contact for relay K3 interrupts the supply voltage to contactor K1. This prevents the backup power network of the inverter from being switched to the public grid.
    • The NO contact of relay K3 gives feedback to the inverter that relay K3 has blocked the power.
    • Additional inverters or other AC sources can be installed in the backup power circuit downstream of the main contacts of K1. The sources will not synchronize with the network of the inverter because this backup power network has a frequency of 53 Hz.
    1. Installation
    2. Connecting backup power - Full Backup

    Automatic switch to backup power 4-pole disconnection e.g., Germany, France, Spain

    Circuit diagrams
    • Appendix: Automatic switch to backup power 4-pin single separation - e.g., Germany on page (→).
    • Appendix: Automatic switch to backup power 4-pin single FRT-capable separation on page (→).
    • Appendix: Automatic switch to backup power 4-pin single separation - e.g., France on page (→).
    • Appendix: Automatic switch to backup power 4-pin single separation - e.g., Spain on page (→).

    Cabling of the backup power circuits and non-backup power circuits:
    If not all the loads in the home need to be supplied in a backup power situation, the circuits need to be divided into backup power circuits and non-backup power circuits. The total load of the backup power circuits must not exceed the rated power of the inverter.

    The backup power circuits and non-backup power circuits must be fused separately according to the required safety measures (e.g., residual current circuit breaker, automatic circuit breaker).
    In backup power mode, only the backup power circuits are disconnected from the grid at all poles by contactor K1, and a ground connection is established for them. In this case the rest of the home network is not supplied.

    The following points regarding cabling must be considered:
    • The main contacts of contactor K1 must be installed between the Fronius Smart Meter and the inverter or the residual current circuit breakers of the backup power circuits.
    • The supply voltage for contactor K1 is provided by the public grid and must be connected to phase 1 (L1) downstream of the Fronius Smart Meter and fused accordingly.
    • To ensure residual current circuit breakers function in backup power mode, the connection between the neutral conductor and the ground conductor must be implemented in accordance with the respective circuit diagram. An NC contact is used for this purpose for each of the main contacts of contactors K4 and K5. This ensures that the ground connection is established as soon as the public grid connection is no longer available.
    • As with contactor K1, the supply voltage for contactors K4 and K5 is supplied via phase 1 (L1) of the public grid.
    • An NC contact for relay K3 interrupts the supply voltage to contactors K1, K4, and K5. This prevents the ground connection from being immediately disconnected again when power returns to the public grid and the backup power network of the inverter from being switched to the public grid.
    • The NO contact of relay K3 gives feedback to the inverter on whether relay K3 has blocked the power.
    • Additional inverters or other AC sources can be installed in the backup power circuit downstream of the main contacts of K1. The sources will not synchronize with the network of the inverter because this backup power network has a frequency of 53 Hz.
    1. Installation
    2. Connecting backup power - Full Backup

    Automatic switch to backup power 4-pole disconnection e.g., Italy

    Circuit diagram
    • Appendix: Automatic switch to backup power 4-pin double separation with ext. grid and system protection - e.g., Italy on page (→).

    Cabling of the backup power circuits and non-backup power circuits:

    IMPORTANT!
    For this circuit variant, the Fronius Smart Meter US-480 must be used.

    The backup power circuits and non-backup power circuits must be fused separately according to the required safety measures (e.g., residual current circuit breaker, automatic circuit breaker).
    In backup power mode, only the backup power circuits are disconnected from the grid by contactors K1 and K2, and a ground connection is established for them. In this case the rest of the home network is not supplied.

    The following points regarding cabling must be considered:
    • The main contacts of contactors K1 and K2 must be installed between the Fronius Smart Meter and the residual current circuit breaker of the inverter or the residual current circuit breakers of the backup power circuits.
    • The supply voltage for contactors K1 and K2 is provided by the public grid and must be connected to phase 1 (L1) downstream of the Fronius Smart Meter and fused accordingly.
    • Actuation of contactors K1 and K2 is carried out by the external grid and system protection.
    • The external grid and system protection unit must be installed downstream of the Fronius Smart Meter. Detailed installation and wiring instructions for external grid and system protection units can be found in the unit's operating instructions.
    • The remote trip input of the external grid and system protection unit must be set to NC according to the manufacturer's operating instructions.
    • To ensure residual current circuit breakers function in backup power mode, the connection between the neutral conductor and the ground conductor must be established as close as possible to the inverter, but in any case upstream of the first residual current circuit breaker. An NC contact is used for this purpose for the main contacts of contactors K4 and K5. This ensures that the ground connection is established as soon as the public grid connection is no longer available.
    • The supply voltage for the contactors K1, K2, K4, and K5 is supplied via phase 1 (L1) of the public grid and is switched via the external grid and system protection unit.
    • An NC contact for relay K3, which activates the remote input of the external grid and system protection unit, interrupts the supply voltage to contactors K1, K2, K4, and K5. This prevents the ground connection from being immediately disconnected again when power returns to the public grid and the backup power network of the inverter from being switched to the public grid.
    • The NO contact of relay K3 gives additional feedback to the inverter on whether relay K3 has blocked the power.
    • Additional inverters or other AC sources can be installed in the backup power circuit downstream of the main contacts of K1 and K2. The sources will not synchronize with the network of the inverter because this backup power network has a frequency of 53 Hz.
    1. Installation
    2. Connecting backup power - Full Backup

    Manual switch to backup power 3-pole disconnection e.g., Austria / 4-pole disconnection e.g., Germany

    Circuit diagrams
    • Appendix: Manual switch to backup power 3-pin separation, e.g., Austria on page (→).
    • Appendix: Manual switch to backup power 4-pin separation, e.g., Germany on page (→).

    IMPORTANT!
    The circuit diagrams to be used must be applied in line with the country standard and the implementing regulations of the utility.

    Cabling of the backup power circuits and non-backup power circuits:
    If not all the loads in the home need to be supplied in a backup power situation, the circuits need to be divided into backup power circuits and non-backup power circuits. The total load of the backup power circuits must not exceed the rated power of the inverter.

    The backup power circuits and non-backup power circuits must be fused separately according to the required safety measures (e.g., residual current circuit breaker, automatic circuit breaker).
    In backup power mode, only the backup power circuits and the inverter are disconnected from the grid by changeover switch Q1. In the case of all-pole disconnection, a ground connection is also established. In this case, the loads in the non-backup power circuits are not supplied by the inverter.

    The following points regarding installation must be considered:
    • The changeover switch Q1 must be dimensioned for the fuses installed upstream, the max. occurring amperage, and the max. occurring short circuit current. An auxiliary switching element with 2 NO contacts is required for switch position 1 (grid operation) to match the installed changeover switch Q1.
      The changeover switch Q1 used must fulfil a short-circuit breaking capacity of at least 10 kA according to standard IEC 60947-1. If the short circuit current at the installation point reaches a value above 10 kA, a switch with a corresponding short-circuit breaking capacity must be used.
    • The circuitry is only to be used in household-like applications and systems (small businesses and agriculture) or up to upstream fuses with a nominal current of 63 A.
    • Min. impulse withstand voltage of the changeover switch of 4 kV according to IEC 60947-1.
    • It must be clarified with the utility whether the 3-pole or all-pole disconnection must be used.
    • The protective measure must be tested regularly; if this is not regulated by law, it must be performed annually.
    • Data transfer between the Fronius Smart Meter and the inverter may be interrupted in backup power mode (switch position 2). This is optionally ensured via a NO contact of the auxiliary contact. Interrupting the Smart Meter connection via auxiliary contact Q1.1 is optional and prevents the backup power function from ending when power returns to the public grid. If this does not take place, the inverter interrupts the backup power supply when power returns to the public grid. Failure to manually switch to parallel grid mode within the first 10 minutes of the power returning to the public grid may cause the inverter and battery to shut down. In this case, a manual system start must be carried out (see chapter Manual system start on page (→)). This behavior must be taken into account especially during a test of manual switching, because the inverter does not start backup power mode when there is a grid connection due to Smart Meter data being available.
    • The data communication connection with the Fronius Smart Meter must be established separately from the battery to its dedicated Modbus input so that battery data communication is maintained (see chapter Modbus participants on page (→)).
    • Feedback to the digital inputs (IOs) of the inverter via the changeover switch Q1 (switch position 2) is a starting condition for the inverter's backup power mode.
    • The AC output of the inverter is de-energized when switching via switch position 0. This is ensured by interrupting the WSD line with the 2nd NO contact of the auxiliary contact and the changeover switch Q1 in position 0.
    • The continuous connection between the equipotential bonding rail and the neutral conductor from the inverter must not be interrupted in the case of 3-pole disconnection.
    • In the case of all-pole disconnection, the PE-N conductor connection is made via the main contacts of changeover switch Q1 in duplicate.
    • Additional inverters or other AC sources can be installed in the backup power circuit downstream of the changeover switch Q1. The sources will not synchronize with the backup power network of the inverter in a backup power situation because this is operated at 53 Hz.
    1. Installation
    2. Connecting backup power - Full Backup

    Testing backup power mode

    Testing backup power mode is recommended:
    • During the initial installation and configuration
    • After working on the switch cabinet
    • During ongoing operation (recommendation: at least once a year)

    For test mode, a battery charge of min. 30% is recommended.

    A description on how to run test mode can be found in the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365).

    1. Installation

    Connecting the data communication cables

    Modbus participants

    The inputs M0 and M1 can be freely selected. A maximum of four Modbus participants can be connected to the Modbus terminal at inputs M0 and M1.

    IMPORTANT!
    Only one primary meter, one battery, and one Ohmpilot can be connected per inverter. Due to the high data transfer of the battery, the battery occupies two subscribers. If the Inverter Control via Modbus function is activated in the Communication > Modbus menu area, no Modbus participants are possible. It is not possible to send and receive data at the same time.

    Example 1:

    Input

    Battery

    Fronius
    Ohmpilot

    Number of primary meters

    Number of secondary meters

    Modbus 0
    (M0)

    0

    4

    0

    2

    0

    1

    Modbus 1
    (M1)

    1

    3

    Example 2:

    Input

    Battery

    Fronius
    Ohmpilot

    Number of primary meters

    Number of secondary meters

    Modbus 0
    (M0)

    1

    3

    Modbus 1
    (M1)

    0

    4

    0

    2

    0

    1

    1. Installation
    2. Connecting the data communication cables

    Modbus participants

    The inputs M0 and M1 can be freely selected. A maximum of four Modbus participants can be connected to the Modbus terminal at inputs M0 and M1.

    IMPORTANT!
    Only one primary meter, one battery, and one Ohmpilot can be connected per inverter. Due to the high data transfer of the battery, the battery occupies two subscribers. If the Inverter Control via Modbus function is activated in the Communication > Modbus menu area, no Modbus participants are possible. It is not possible to send and receive data at the same time.

    Example 1:

    Input

    Battery

    Fronius
    Ohmpilot

    Number of primary meters

    Number of secondary meters

    Modbus 0
    (M0)

    0

    4

    0

    2

    0

    1

    Modbus 1
    (M1)

    1

    3

    Example 2:

    Input

    Battery

    Fronius
    Ohmpilot

    Number of primary meters

    Number of secondary meters

    Modbus 0
    (M0)

    1

    3

    Modbus 1
    (M1)

    0

    4

    0

    2

    0

    1

    1. Installation
    2. Connecting the data communication cables

    Routing data communication cables

    IMPORTANT!
    If data communication cables are wired into the inverter, observe the following points:
    • Depending on the number and cross-section of the wired data communication cables, remove the corresponding blanking plugs from the sealing insert and insert the data communication cables.
    • Make sure that you insert the corresponding blanking plugs into any free openings on the sealing insert.

    IMPORTANT!
    Should the blanking plugs be missing or improperly fitted, then safety class IP66 cannot be guaranteed.

    Ihr Browser kann diesen Film leider nicht anzeigen.
    1.
    Loosen the union nut, push out the sealing ring, and remove the corresponding blanking plug.
    1

    Undo the cable gland union nut and push out the sealing ring and the blanking plug from the inside of the device.

    2

    Open up the sealing ring at the location where the blanking plug is to be removed.

    * Liberate the blanking plug by moving it sideways.

    3

    Guide the data cables first through the cable gland union nut and then through the housing opening.

    4

    Insert the sealing ring between the union nut and the housing opening. Press the data cables into the seal's cable guide. Then press in the seal until it reaches the underside of the cable gland.

    5

    Tighten the union nut for the cable gland to a torque of min. 2.5 to max. 4 Nm.

    1. Installation
    2. Connecting the data communication cables

    Connecting the battery communication cable

    1

    Strip 10 mm from the single conductors and mount the ferrules if necessary.

    IMPORTANT!
    Connect the individual conductors to an appropriate ferrule if several individual conductors are connected to one input of the push-in terminals.

    2

    Insert the cable into the respective slot and check the cable is securely retained.

    IMPORTANT!
    Use only twisted pairs for connecting "Data +/-" and "Enable +/-", see Permitted cables for the data communication connection on page (→).

    Twist the cable shield and insert into the "SHIELD" slot.

    IMPORTANT!
    Improperly fitted shielding can cause data communication problems.

    Ihr Browser kann diesen Film leider nicht anzeigen.
    1.
    Disconnect the terminal.
    2.
    Lay the data communication cable. Press in the seal until it reaches the underside of the cable gland.

    For the wiring proposal recommended by Fronius, see page (→).

    1. Installation
    2. Connecting the data communication cables

    Terminating resistors

    It may be possible for the system to function without terminating resistors. However, owing to interference, the use of terminating resistors according to the following overview is recommended for trouble-free operation.

    For permissible cables and max. distances for the data communication area, refer to the chapter headed Permitted cables for the data communication connection on page (→).

    IMPORTANT!
    Terminating resistors that are not positioned as illustrated can result in interference in the data communication.

    1. Installation
    2. Connecting the data communication cables

    Installing the WSD (wired shutdown)

    IMPORTANT!
    The push-in WSD terminal in the inverter's connection area is delivered with a bypass ex works as standard. The bypass must be removed when installing a trigger device or a WSD chain.

    The WSD switch of the first inverter with connected trigger device in the WSD chain must be in position 1 (master). The WSD switch of all other inverters should be in position 0 (slave).

    Max. distance between two devices: 100 m
    Max. Number of devices: 28

    * Floating contact of the trigger device (e.g., central grid and system protection). If several floating contacts are used in a WSD chain, these must be connected in series.

    1. Installation

    Closing and commissioning the inverter

    Closing the inverter's connection area/housing cover, and commissioning

    NOTE!

    The housing cover is fitted with a lock for safety reasons, which allows the housing cover on the inverter to be pivoted only when the DC disconnector is switched off.

     

    Only clip and pivot the housing cover onto the inverter when the DC disconnector is switched off.

    Do not use excessive force to clip in and pivot the housing cover.

    1

    Place the cover on the connection area. Tighten the five screws by rotating them 180° to the right in the indicated order using a screwdriver (TX20).

    2

    Clip the housing cover onto the inverter from above.
    Press on the lower part of the housing cover and tighten the two screws 180° to the right using a TORX® screwdriver (TX20).
    Turn the DC disconnector to the "On" switch position. Switch on the automatic circuit breaker. For systems with a battery, observe the switch-on sequence as per chapter Suitable batteries on page (→).

    IMPORTANT! Open WLAN access point with the optical sensor, see chapter Button functions and LED status indicator on page (→)

    1. Installation
    2. Closing and commissioning the inverter

    Closing the inverter's connection area/housing cover, and commissioning

    NOTE!

    The housing cover is fitted with a lock for safety reasons, which allows the housing cover on the inverter to be pivoted only when the DC disconnector is switched off.

     

    Only clip and pivot the housing cover onto the inverter when the DC disconnector is switched off.

    Do not use excessive force to clip in and pivot the housing cover.

    1

    Place the cover on the connection area. Tighten the five screws by rotating them 180° to the right in the indicated order using a screwdriver (TX20).

    2

    Clip the housing cover onto the inverter from above.
    Press on the lower part of the housing cover and tighten the two screws 180° to the right using a TORX® screwdriver (TX20).
    Turn the DC disconnector to the "On" switch position. Switch on the automatic circuit breaker. For systems with a battery, observe the switch-on sequence as per chapter Suitable batteries on page (→).

    IMPORTANT! Open WLAN access point with the optical sensor, see chapter Button functions and LED status indicator on page (→)

    1. Installation
    2. Closing and commissioning the inverter

    Starting the inverter for the first time

    When starting the inverter for the first time, various setup settings must be configured.

    If the setup is canceled before completion, the input data is not saved and the start screen with the installation wizard is shown once again. The data is saved in the event of an interruption, e.g., a power failure. Commissioning is continued at the point at which the interruption occurred after the power supply is restored. If the setup was interrupted, the inverter feeds energy into the grid at maximum 500 W and the operating status LED flashes yellow.

    The country setup can only be set when starting the inverter for the first time. If the country setup needs to be changed at a later date, contact your installer/technical support.

    1. Installation
    2. Closing and commissioning the inverter

    Installation with the app

    The Fronius Solar.start app is required for installation. Depending on the mobile device used to perform the installation, the app is available on the relevant platform.

    1Download and install the Fronius Solar.start app.
    2Open the access point by touching the sensor    .
    ✓Communications LED flashes blue.
    3Open the Fronius Solar.start app and follow the installation wizard. Scan the QR code on the rating plate with a smartphone or tablet to connect to the inverter.
    4Add system components in Fronius Solar.web and commission the PV system.

    The network wizard and product setup can be performed independently. A network connection is required for the Fronius Solar.web installation wizard.

    1. Installation
    2. Closing and commissioning the inverter

    Installation with the browser

    WLAN:

    1Open the access point by touching the sensor   
    ✓Communications LED flashes blue.
    2Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).
    3Enter the password from the rating plate and confirm.
    IMPORTANT!
    To enter the password in Windows 10, first select the Connect using a security key instead link to be able to establish the connection with the password.
    4Enter the IP address 192.168.250.181 in the address bar of the browser and confirm. The installation wizard opens.
    5Follow the installation wizard and complete the installation in the individual areas.
    6Add the system components in Fronius Solar.web and commission the PV system.

    The network wizard and product setup can be performed independently. A network connection is required for the Fronius Solar.web installation wizard.

    Ethernet:

    1Establish a connection to the inverter (LAN1) using a network cable (min. CAT5 STP).
    2Open the access point by touching the sensor once   
    ✓Communications LED flashes blue.
    3Enter the IP address 169.254.0.180 in the address bar of the browser and confirm. The installation wizard opens.
    4Follow the installation wizard and complete the installation in the individual areas.
    5Add the system components in Fronius Solar.web and commission the PV system.

    The network wizard and product setup can be performed independently. A network connection is required for the Fronius Solar.web installation wizard.

    1. Installation

    De-energizing the inverter and switching it back on

    De-energizing the inverter and switching it back on

    1
    1. Turn off the automatic circuit breaker.
    2. Turn the DC disconnector to the "off" switch setting.

    To start up the inverter again, follow the steps listed above in reverse order.

    IMPORTANT!
    Wait for the capacitors of the inverter to discharge!

    1. Installation
    2. De-energizing the inverter and switching it back on

    De-energizing the inverter and switching it back on

    1
    1. Turn off the automatic circuit breaker.
    2. Turn the DC disconnector to the "off" switch setting.

    To start up the inverter again, follow the steps listed above in reverse order.

    IMPORTANT!
    Wait for the capacitors of the inverter to discharge!

    Settings – User interface of the inverter

    User settings

    User login

    1Open the user interface of the inverter in the browser.
    2In the Login menu area, log in with username and password, or, in the User > User Login menu area, log in with username and password.

    IMPORTANT!
    Depending on the authorization of the user, settings can be made in the individual menu areas.

    1. Settings – User interface of the inverter

    User settings

    User login

    1Open the user interface of the inverter in the browser.
    2In the Login menu area, log in with username and password, or, in the User > User Login menu area, log in with username and password.

    IMPORTANT!
    Depending on the authorization of the user, settings can be made in the individual menu areas.

    1. Settings – User interface of the inverter
    2. User settings

    User login

    1Open the user interface of the inverter in the browser.
    2In the Login menu area, log in with username and password, or, in the User > User Login menu area, log in with username and password.

    IMPORTANT!
    Depending on the authorization of the user, settings can be made in the individual menu areas.

    1. Settings – User interface of the inverter
    2. User settings

    Selecting languages

    1In the User > Language menu area, select the desired language.
    1. Settings – User interface of the inverter

    Device configuration

    Components

    All available components of the system can be added via Add component+.

    PV Generator
    Activate the MPP tracker and enter the connected PV output in the relevant field. In the case of combined solar module strings, PV 1 + PV 2 connected in parallel must be activated.

    Primary meter
    For problem-free operation with further energy generators and in Full Backup power mode, it is important to install the Fronius Smart Meter at the feed-in point. The inverter and further producers must be connected to the public grid via the Fronius Smart Meter.
    This setting also has an effect on the behavior of the inverter during the night. If the function is deactivated, the inverter switches to standby mode as soon as there is no more PV power available and no energy management specification is sent to the battery (e.g., minimum state of charge reached). The message "Power low" is displayed. The inverter starts again as soon as an energy management specification is sent or sufficient PV power is available.
    If the function is activated, the inverter remains permanently connected to the grid in order to draw energy from other producers at any time.
    After connecting the meter, select one of the following device types:

    • Modbus RTU
    • Modbus TCP
    • MQTT (available MQTT device is displayed automatically)

    NOTE!

    For communication via MQTT, the inverter and Smart Meter must be in the same sub-network.

    The following parameters must also be defined for the Smart Meter:

    • Application (Production meter or Consumption Meter)
    • Name
    • Category (e.g., inverter)
    • IP Address (for Modbus TCP)
    • Port (for Modbus TCP)
    • Modbus Address (for Modbus RTU and TCP)


    The Watt value for the production meter is the sum of all production meters. The Watt value for the consumption meter is the sum of all secondary meters.

    Battery
    If the SoC Limit Mode is set to Auto, the values SoC Minimum and SoC Maximum are preset according to the technical specifications of the battery manufacturer.

    If the SoC Limit Mode is set to Manual, the values SoC Minimum and SoC Maximum can be changed after consultation with the battery manufacturer within the framework of their technical specifications. In a backup power situation, the set values are not taken into account.

    The setting Allow battery charging from other generators in the home network activates/deactivates charging of the battery from other generators.
    The power consumption of the Fronius inverter can be restricted by specifying a value in the Max. Charging Power from AC field. As a maximum, a power consumption equal to the AC rated power of the Fronius inverter is possible.

    The setting Allow battery charging from public grid + Allow battery charging from other generators in the home network activates/deactivates the charging of the battery from the public grid and, if present, from other generators in the home network.
    The normative or compensatory specifications must be taken into account for this setting. Irrespective of this setting, necessary service-related charging from the public grid is performed (e.g., forced re-charging to protect against deep discharge).

    IMPORTANT!
    Fronius accepts no liability for damage to third-party batteries.

    Ohmpilot
    All the Ohmpilots available in the system are displayed. Select the desired Ohmpilot and add to the system via Add.

    1. Settings – User interface of the inverter
    2. Device configuration

    Components

    All available components of the system can be added via Add component+.

    PV Generator
    Activate the MPP tracker and enter the connected PV output in the relevant field. In the case of combined solar module strings, PV 1 + PV 2 connected in parallel must be activated.

    Primary meter
    For problem-free operation with further energy generators and in Full Backup power mode, it is important to install the Fronius Smart Meter at the feed-in point. The inverter and further producers must be connected to the public grid via the Fronius Smart Meter.
    This setting also has an effect on the behavior of the inverter during the night. If the function is deactivated, the inverter switches to standby mode as soon as there is no more PV power available and no energy management specification is sent to the battery (e.g., minimum state of charge reached). The message "Power low" is displayed. The inverter starts again as soon as an energy management specification is sent or sufficient PV power is available.
    If the function is activated, the inverter remains permanently connected to the grid in order to draw energy from other producers at any time.
    After connecting the meter, select one of the following device types:

    • Modbus RTU
    • Modbus TCP
    • MQTT (available MQTT device is displayed automatically)

    NOTE!

    For communication via MQTT, the inverter and Smart Meter must be in the same sub-network.

    The following parameters must also be defined for the Smart Meter:

    • Application (Production meter or Consumption Meter)
    • Name
    • Category (e.g., inverter)
    • IP Address (for Modbus TCP)
    • Port (for Modbus TCP)
    • Modbus Address (for Modbus RTU and TCP)


    The Watt value for the production meter is the sum of all production meters. The Watt value for the consumption meter is the sum of all secondary meters.

    Battery
    If the SoC Limit Mode is set to Auto, the values SoC Minimum and SoC Maximum are preset according to the technical specifications of the battery manufacturer.

    If the SoC Limit Mode is set to Manual, the values SoC Minimum and SoC Maximum can be changed after consultation with the battery manufacturer within the framework of their technical specifications. In a backup power situation, the set values are not taken into account.

    The setting Allow battery charging from other generators in the home network activates/deactivates charging of the battery from other generators.
    The power consumption of the Fronius inverter can be restricted by specifying a value in the Max. Charging Power from AC field. As a maximum, a power consumption equal to the AC rated power of the Fronius inverter is possible.

    The setting Allow battery charging from public grid + Allow battery charging from other generators in the home network activates/deactivates the charging of the battery from the public grid and, if present, from other generators in the home network.
    The normative or compensatory specifications must be taken into account for this setting. Irrespective of this setting, necessary service-related charging from the public grid is performed (e.g., forced re-charging to protect against deep discharge).

    IMPORTANT!
    Fronius accepts no liability for damage to third-party batteries.

    Ohmpilot
    All the Ohmpilots available in the system are displayed. Select the desired Ohmpilot and add to the system via Add.

    1. Settings – User interface of the inverter
    2. Device configuration

    Functions and
    I/Os

    Backup Power
    In backup power mode, it is possible to select between Off, PV Point, and Full Backup.
    The backup power mode Full Backup can only be activated once the required I/O assignments for backup power have been configured. In addition, a meter must be installed and configured at the feed-in point for the backup power mode Full Backup.

    IMPORTANT!
    When configuring the backup power mode PV Point, the instructions in chapter Safety on page (→) must be observed.
    When configuring the backup power mode Full Backup, the instructions in chapter Safety on page (→) must be observed.

    Backup Nominal Voltage
    When backup power mode is activated, the nominal voltage of the public grid must be selected.

    SoC warning level
    In backup power mode, a warning is emitted when this residual battery capacity is reached.

    Reserve Capacity
    The set value results in a residual capacity (depending on the capacity of the battery) that is reserved for backup power situations. The battery is not discharged below the residual capacity in grid connected mode. In backup power mode, the manually set value of SoC Minimum is not taken into account. If there is a backup power situation, the battery is always discharged up to the automatically preset, minimum SoC according to the technical specifications of the battery manufacturer.

    System preservation during night
    To ensure continuous backup power operation even during the night, the inverter calculates a reserve capacity for system preservation depending on the battery capacity. When the calculated limit value is reached, standby mode is activated for the inverter and the battery and maintained for a period of 16 hours. Connected loads are no longer supplied. The battery is discharged up to the preset minimum SoC.

    Load Management
    Up to four pins for the load management can be selected here. Further settings for the load management are available in the Load Management menu item.
    Default: Pin 1

    Australia - Demand Response Modes (DRM)
    The pins for control via DRM can be set here:

    Mode

    Description

    Information

    DRM Pin

    I/O Pin

    DRM0

    Inverter disconnects from the grid

    DRM0 occurs in the event of an interruption or short circuit on the REF GEN or COM LOAD lines, or in the event of invalid combinations of DRM1 - DRM8.
    The grid relays open.

    REF GEN
    COM LOAD

    IO4
    IO5

    DRM1

    Import Pnom ≤ 0% without disconnection from grid

    currently not supported

    DRM 1/5

    IN6

    DRM2

    Import Pnom ≤ 50%

    currently not supported

    DRM 2/6

    IN7

    DRM3

    Import Pnom ≤ 75% &
    +Qrel* ≥ 0%

    currently not supported

    DRM 3/7

    IN8

    DRM4

    Import Pnom ≤ 100%

    currently not supported

    DRM 4/8

    IN9

    DRM5

    Export Pnom ≤ 0% without disconnection from grid

    currently not supported

    DRM 1/5

    IN6

    DRM6

    Export Pnom ≤ 50%

    currently not supported

    DRM 2/6

    IN7

    DRM7

    Export Pnom ≤ 75% &
    -Qrel* ≥ 0%

    currently not supported

    DRM 3/7

    IN8

    DRM8

    Export Pnom ≤ 100%

    currently not supported

    DRM 4/8

    IN9

    The percentage specifications always relate to the rated device power.

    IMPORTANT!
    If the Australia - Demand Response Modes (DRM) function is activated and no DRM control is connected, the inverter switches to standby mode.

    1. Settings – User interface of the inverter
    2. Device configuration

    Demand Response Modes (DRM)

    Here you can enter a value for the apparent power input and the apparent power output for the Australia country setup.

    1. Settings – User interface of the inverter
    2. Device configuration

    Inverter

    Enforce Standby
    When this function is activated, grid power feed operation of the inverter is interrupted. This makes it possible to shut down the inverter without power and protect its components. The standby function is automatically deactivated when the inverter is restarted.

    PV 1 and PV 2

    Parameter

    Value range

    Description

    Mode

    Off

    The MPP tracker is deactivated.

    Auto

    The inverter uses the voltage at which the max. possible output of the MPP tracker is possible.

    Fix

    The MPP tracker uses the voltage defined in UDC fix.

    UDC fix

    80 ‑ 530 V

    The inverter uses the fixed voltage that is used on the MPP tracker.

    Dynamic Peak Manager

    Off

    Function is deactivated.

    On

    The entire solar module string is checked for optimization potential and the best possible voltage for grid power feed operation is determined.

    Ripple Control
    Ripple control signals are signals that are sent by the energy company in order to switch controllable loads on and off. Depending on the installation situation, ripple control signals can be dampened or amplified by the inverter. This can be counteracted if necessary by applying the following settings.

    Parameter

    Value range

    Description

    Reduction of Influence

    Off

    Function is deactivated.

    On

    Function is activated.

    Frequency of Ripple Control Signal

    100 ‑ 3000 Hz

    The frequency specified by the energy company must be entered here.

    Grid Inductance

    0.00001 ‑ 0.005 H

    The value measured at the feed-in point must be entered here.

    Measure against RCD false triggers
    (when using a 30 mA residual current circuit breaker)

    NOTE!

    A residual current circuit breaker for the AC connecting cable may be required depending on national regulations, the grid operator, and other conditions.

    A type A residual current circuit breaker is generally sufficient in this case. Nevertheless, false alarms can be triggered for the type A residual current circuit breaker in individual cases and depending on local conditions. For this reason, Fronius recommends using a residual current circuit breaker suitable for frequency inverters with a release current of least 100 mA, taking into account national provisions.

    Parameter

    Value range

    Description

    Leakage current factor for reducing RCMU/RCD false trips

    0 ‑ 0.25
    (default: 0.16)

    By reducing the set value, the leakage current is reduced and the intermediate circuit voltage is increased, which slightly lowers the efficiency.

    • A setting value of 0.16 ensures optimum efficiency.
    • Setting value 0 enables minimum leakage currents.

    Switch-Off before 30mA RCD Trip

    Off

    The function for reducing the faulty tripping of the residual current circuit breaker is deactivated.

    On

    The function for reducing the faulty tripping of the residual current circuit breaker is activated.

    Rated residual non-operating current threshold

    0.015 ‑ 0.3

    Value of the non-trigger fault current determined by the manufacturer for the residual current circuit breaker, at which the residual current circuit breaker does not switch off under specified conditions.

    Iso Warning

    Parameter

    Value range

    Description

    Iso Warning

    Off

    The insulation warning is deactivated.

    On

    The insulation warning is activated.
    A warning is output in the event of an insulation fault.

    Iso Alternative Mode

     

    Accurate

    Insulation monitoring takes place with the highest degree of accuracy and the measured insulation resistance is displayed on the user interface of the inverter.

    Fast

    Insulation monitoring takes place with a lesser degree of accuracy, whereby the time to take the insulation measurement is shortened and the insulation value is not displayed on the user interface of the inverter.

    Isolation Warning Threshold

    100000 ‑
    10000000

    If the value drops below the threshold, status code 1083 is displayed on the user interface of the inverter.

    Backup Power

    Parameter

    Value range

    Description

    Backup Nominal Voltage

    220 ‑ 240 V

    The nominal phase voltage that is output in backup power mode.

    Backup Frequency Offset

    -5 to +5 Hz

    The setting value can be used to reduce or increase the nominal backup power frequency (see Technical data) by the offset value. The default value is +3 Hz. Connected loads (e.g., Fronius Ohmpilot) detect active backup power mode based on the changed frequency and react accordingly (e.g., activation of energy-saving mode).


    IMPORTANT!
    If another AC source is available in the system, the backup power frequency must not be changed. The standard value (+3 Hz) prevents further AC sources from feeding in parallel to the inverter in backup power mode and triggering overvoltages as well as shutting down the dedicated backup power network.

    Backup Undervoltage Protection Limit U< [pu]

    0 ‑ 2 %V

    This setting value represents the limit value for shutting down backup power mode
    e.g., setting value 0.9 = 90% of the nominal voltage.

    Backup Undervoltage Protection Time U<

    0.04 ‑ 20 s

    Trip time for falling below the backup power undervoltage protection limit value.

    Backup Overvoltage Protection Limit U> [pu]

    0 ‑ 2 %V

    This setting value represents the limit value for shutting down backup power mode
    e.g., setting value 1.1 = 110% of the nominal voltage.

    Backup Overvoltage Protection Time U>

    0.04 ‑ 20 s

    Trip time for exceeding the backup power overvoltage protection limit value.

    Backup Restart Delay

    0 ‑ 600 s

    Waiting time for restarting backup power mode following a shutdown.

    Backup Restart Attempts

    1 ‑ 10

    The max. number of automated restart attempts. Once the max. number of automated restart attempts has been reached, service message 1177 must be manually acknowledged.

    Backup External Frequency Check
    (Italy only)

     

    Off

    Function is deactivated

    On

    For Full Backup power mode in Italy, external frequency monitoring must be activated. The mains frequency is checked before ending backup power mode. If the mains frequency is within the permitted limits, the loads are connected to the public grid.

    Backup Short Circuit Trip Time

    0.001 ‑ 60 s

    If a short circuit occurs during backup power mode, backup power mode is interrupted within the set time.

    1. Settings – User interface of the inverter

    Energy management

    Permitted maximum battery charge from the public grid

    In Germany, new rules for charging batteries came into force on January 1, 2024. The maximum charging power from public grids is 4.2 kW when controlled in accordance with Section 14a of the EnWG (Energy Industry Act).
    The inverter must establish a connection to Fronius Solar.web for documentation purposes and be permanently connected to the Internet in order to be able to prove the implementation of the external control commands.
    The charging power is limited to a value below this by default. It is important not to use more than the allowed 4.2 kW charging power.

    1. Settings – User interface of the inverter
    2. Energy management

    Permitted maximum battery charge from the public grid

    In Germany, new rules for charging batteries came into force on January 1, 2024. The maximum charging power from public grids is 4.2 kW when controlled in accordance with Section 14a of the EnWG (Energy Industry Act).
    The inverter must establish a connection to Fronius Solar.web for documentation purposes and be permanently connected to the Internet in order to be able to prove the implementation of the external control commands.
    The charging power is limited to a value below this by default. It is important not to use more than the allowed 4.2 kW charging power.

    1. Settings – User interface of the inverter
    2. Energy management

    Battery management

    Battery SoC settings
    If the SoC Limit Mode is set to Auto, the values SoC Minimum and SoC Maximum are preset according to the technical specifications of the battery manufacturer.

    If the SoC Limit Mode is set to Manual, the values SoC Minimum and SoC Maximum can be changed after consultation with the battery manufacturer within the framework of their technical specifications. In a backup power situation, the set values are not taken into account.

    The setting Allow battery charging from other generators in the home network activates/deactivates charging of the battery from other generators.
    The power consumption of the Fronius inverter can be restricted by specifying a value in the Max. Charging Power from AC field. As a maximum, a power consumption equal to the AC rated power of the Fronius inverter is possible.

    The setting Allow battery charging from public grid + Allow battery charging from other generators in the home network activates/deactivates the charging of the battery from the public grid and, if present, from other generators in the home network.
    The normative or compensatory specifications must be taken into account for this setting. Irrespective of this setting, necessary service-related charging from the public grid is performed (e.g., forced re-charging to protect against deep discharge).

    SoC warning level
    In backup power mode, a warning is emitted when this residual battery capacity is reached.

    Reserve Capacity
    The set value results in a residual capacity (depending on the capacity of the battery) that is reserved for backup power situations. The battery is not discharged below the residual capacity in grid connected mode.

    IMPORTANT!
    Fronius accepts no liability for damage to third-party batteries.

    Time-dependent battery control
    Using the Time-dependent battery control, it is possible to specify, restrict, or prevent the charging/discharging of the battery at/to a defined power.

    Battery Management is influenced, for example, by the following settings:
    • Permitted battery charging from the public grid
    • Power limit of the inverter, energy storage device, or overall system
    • Control specifications via Modbus
    • Self-consumption optimization

    IMPORTANT!
    The defined regulations for battery control have the second lowest priority after Self-Consumption Optimization. Depending on the configuration, the regulations may not be fulfilled due to other settings.

    The following values can be selected for the Time-dependent battery control regulations:
    • Max. charging power
      The max. charging power of the battery is the value set in the Power input field.
      If no feed into the public grid and/or direct consumption in the home is possible, the set value Max. charging power is ignored and the battery is charged with the generated energy.
    • Min. charging power
      The min. charging power of the battery is the value set in the Power input field.
    • Max. discharge power
      The max. discharge power of the battery is the value set in the Power input field.
    • Min. discharge power
      The min. discharge power of the battery is the value set in the Power input field.

    The timing of when the regulation applies is set in the Time input fields and by selecting the days of the week.

    It is not possible to define a time window beyond midnight (00:00).
    Example: Two entries are needed to set a regulation of 22:00 to 06:00: "22:00 - 23:59" and "00:00 - 06:00".

    1. Settings – User interface of the inverter
    2. Energy management

    Examples - Time-dependent battery control

    The following examples serve to explain the energy flows. Efficiency levels are not taken into account.

    Battery system

    PV system to inverter

    1000 W

    Power into the battery

    500 W

    Power output (AC) of the inverter

    500 W

    Set target value at feed-in point

    0 W

    Infeed into the public grid

    0 W

    Consumption in home

    500 W

    Battery system without photovoltaics, including second generator in the house

    Power into the battery

    1500 W

    Power consumption (AC) of the inverter

    1500 W

    Second generator in home network

    2000 W

    Set target value at feed-in point

    0 W

    Infeed into the public grid

    0 W

    Consumption in home

    500 W

    Battery system including second generator in the house

    PV system to inverter

    1000 W

    Power into the battery

    2500 W

    Power consumption (AC) of the inverter

    1500 W

    Second generator in home network

    2000 W

    Set target value at feed-in point

    0 W

    Infeed into the public grid

    0 W

    Consumption in home

    500 W

    Battery system including second generator in the house
    (with AC max. limitation)

    PV system to inverter

    1000 W

    Power into the battery

    2000 W

    Power consumption AC max. limited to

    1000 W

    Power consumption (AC) of the inverter

    1000 W

    Second generator in home network

    2000 W

    Set target value at feed-in point

    0 W

    Infeed into the public grid

    500 W

    Consumption in home

    500 W

    1. Settings – User interface of the inverter
    2. Energy management

    Permitted battery control regulations

    A regulation always consists of a restriction or specification, and the time and days of the week when the regulation is active. The time of regulations with the same restriction (e.g., max. charging power) must not overlap.

    Max. charging and discharging limits
    One max. charging and one max. discharging power can be configured at the same time.

    Specify charging range
    It is possible to define a charging range using a min. and max. charging limit. In this case, it is not possible to discharge the battery.

    Specify discharging range
    It is possible to define a discharging range using a min. and max. discharging limit. In this case, it is not possible to charge the battery.

    Specify a defined charge
    It is possible to specify a defined charging power by setting the min. and max. charging power to the same value.

    Specify a defined discharge
    It is possible to specify a defined discharging power by setting the min. and max. discharging power to the same value.

    Possible applications

    • Time-dependent energy tariffs
    • Battery reservation in the event of market-specific power limitation
    • Time-dependent storage reservation for a backup power situation
    1. Settings – User interface of the inverter
    2. Energy management

    PV power reduction

    The regulations in the Battery Management menu area enable optimal use of the energy generated. Situations may arise, however, in which PV power cannot be used in full due to the time-dependent battery control.

    Example

    Fronius inverter (max. output power)

    6000 W

    Defined discharge of the battery

    6000 W

    PV power

    1000 W

    In this case, the inverter would have to reduce the PV power to 0 W, since the output power of the inverter is max. 6000 W and the device is already being fully utilized through discharging.

    Since it does not make sense to waste PV power, the power limit is automatically adjusted in battery management such that no PV power is wasted. In the example above, this means that the battery is discharged only at 5000 W, so that the 1000 W PV power can be used.

    1. Settings – User interface of the inverter
    2. Energy management

    Load management

    Priorities
    If additional components (e.g., battery, Fronius Ohmpilot) are present in the system, the priorities can be set here. Devices having higher priority are actuated first, and subsequently, if there is still excess energy available, the other devices.

    IMPORTANT!
    If there is a Fronius Wattpilot in the photovoltaic system, it is considered to be a load. The priority for the load management of the Fronius Wattpilot must be configured in the Fronius Solar.wattpilot app.

    Rules
    It is possible for up to four different load management rules to be defined. At the same threshold values, the rules are activated in succession. For deactivation, this is done in reverse; the I/O last switched on is the first to be switched off. In the case of different thresholds, the I/O with the lowest threshold is switched on first, followed by the second lowest, and so on.

    I/Os controlled by the produced power are always prioritized over a battery and Fronius Ohmpilot. That is to say that an I/O can switch on and result in the battery no longer being charged or the Fronius Ohmpilot no longer being activated.

    IMPORTANT!
    An I/O is activated/deactivated after 60 seconds.

    Load
    • Control is Off (deactivated).
    • Control is effected by the Power Production.
    • Control is effected by Power Surplus (with feed-in limits). This option can only be selected if a meter has been connected. Control is effected using the actual power of feeding in with respect to the grid.
    Thresholds
    • On: For entering an effective power limit, at which the output is activated.
    • Off: For entering an effective power limit, at which the output is deactivated.
    Duration
    • Field for activating the Minimum duration per on-signal for which the output is to be activated for each switch-on process.
    • Field for activating the Maximum duration per day.
    • Field for activating the Desired duration for which the output is to be activated in total per day (several switch-on processes are allowed for).
    1. Settings – User interface of the inverter
    2. Energy management

    Self-consumption optimization

    Self-Consumption Optimization
    Set the operating mode to Manual or Automatic. The inverter always adjusts to the set Target value at feed-in point. In Automatic operating mode (factory setting), an adjustment is made to 0 W at the feed-in point (max. self-consumption).

    The Target value at feed-in point also applies if a further source feeds into this Smart Meter. In this case, however:
    • The Fronius Smart Meter must be installed and configured at the feed-in point.
    • The Allow battery charging from other generators in the home network function must be activated in the Components > Battery menu area.

    Target value at feed-in point
    If Manual has been selected under Self-Consumption Optimization, the Operation Mode (Consumption/Feed-in) and the Target value at feed-in point can be set.

    IMPORTANT!
    Self-Consumption Optimization has lower priority than Battery Management.

    1. Settings – User interface of the inverter

    System

    General

    1Enter the name of the system in the input field PV System Name (max. 30 characters).
    2Select the Timezone and Time zone location in the drop-down lists. The date and time are taken over from the time zone entered.
    2Click Save.
    ✓System name, time zone, and time zone location are saved.
    1. Settings – User interface of the inverter
    2. System

    General

    1Enter the name of the system in the input field PV System Name (max. 30 characters).
    2Select the Timezone and Time zone location in the drop-down lists. The date and time are taken over from the time zone entered.
    2Click Save.
    ✓System name, time zone, and time zone location are saved.
    1. Settings – User interface of the inverter
    2. System

    Update

    All available updates for inverters and other Fronius devices are provided on the product pages and in the "Fronius Download Search" area at www.fronius.com .

    Update
    1Drag the firmware file into the Drag & drop file here field, or select via Browse file.
    ✓Update is started.
    1. Settings – User interface of the inverter
    2. System

    Setup wizard

    The guided setup wizard can be accessed here.

    1. Settings – User interface of the inverter
    2. System

    Restoring factory settings

    All settings
    Resets all configuration data, apart from the country setup. Changes to the country setup may only be made by authorized personnel.

    All settings without network
    Resets all configuration data, apart from the country setup and the network settings. Changes to the country setup may only be made by authorized personnel.

    1. Settings – User interface of the inverter
    2. System

    Event log

    Current messagesAll current events of the linked system components are displayed here.

    IMPORTANT!
    Depending on the type of event, this must be confirmed via the "tick" button so that it can be further processed.

    History
    All events of the linked system components that are no longer present are displayed here.

    1. Settings – User interface of the inverter
    2. System

    Information

    All the information regarding the system and the current settings is displayed and provided for download in this menu area.

    1. Settings – User interface of the inverter
    2. System

    License Manager

    The power data and functional scope of the inverter are stored in the license file. If the inverter, power stage set, or data communication area is replaced, the license file must also be replaced.

    Licensing - online (recommended)
    This requires an Internet connection and a completed Fronius Solar.web configuration.
    1Finish all installation work (refer to the chapter headed Closing the inverter's connection area/housing cover, and commissioning on page (→)).
    2Establish a connection to the user interface of the inverter.
    3Enter the serial number and verification code (VCode) of the defective and replacement device. The serial number and VCode can be found on the rating plate of the inverter (refer to the chapter headed Information on the device on page (→)).
    4Click the Start online licensing button.
    5Skip past the Terms and conditions of use and Network settings menu items by clicking Next.
    ✓License activation is started.
    Licensing - offline
    There must be no Internet connection in this case. If offline licensing is carried out while there is an active Internet connection, the license file is automatically loaded onto the inverter, resulting in the following error when the license file is uploaded: "The license has already been installed and the wizard can be closed".
    1Finish all installation work (refer to the chapter headed Closing the inverter's connection area/housing cover, and commissioning on page (→)).
    2Establish a connection to the user interface of the inverter.
    3Enter the serial number and verification code (VCode) of the defective and replacement device. The serial number and VCode can be found on the rating plate of the inverter (refer to the chapter headed Information on the device on page (→)).
    4Click the Start offline licensing button.
    5Download the service file onto the mobile device by clicking the Download service file button.
    6Open licensemanager.solarweb.com and log in with username and password.
    7Drag the service file into the Drag service file here or click to upload field or click to upload it.
    8Download the newly generated license file onto the mobile device by clicking the Download license file button.
    9Switch to the user interface of the inverter and drag the license file into the Drag & drop license file here field or select via Choose license file.
    ✓License activation is started.
    1. Settings – User interface of the inverter
    2. System

    Support

    Activating the support user
    1Click the Enable Support User Account button.
    ✓The support user is activated.

    IMPORTANT!
    The support user exclusively enables Fronius Technical Support to configure settings on the inverter via a secure connection. Access is deactivated by clicking the Terminate Support User Session button.

    Generating support info (for Fronius Support)
    1Click the Generate support info button.
    2The sdp.cry file is downloaded automatically. For manual download, click the Download support info button.
    ✓The sdp.cry file is saved in the downloads.
    Activating remote access
    1Click the Activate Remote Access button.
    ✓Remote access is activated for Fronius Support.

    IMPORTANT!
    The remote access exclusively enables Fronius Technical Support to access the inverter via a secure connection. In this case, diagnostics data are transmitted, which are used for troubleshooting. The remote access can be activated only upon request by Fronius Support.

    1. Settings – User interface of the inverter

    Communication

    Network

    Server addresses for data transfer
    If a firewall is used for outgoing connections, the below protocols, server addresses, and ports must be allowed for successful data transfer, see:
    https://www.fronius.com/~/downloads/Solar%20Energy/firmware/SE_FW_Changelog_Firewall_Rules_EN.pdf

    When using FRITZ!Box products, Internet access must be configured without any restrictions or limitations. The DHCP Lease Time (validity) must not be set to 0 (=infinite).

    LAN:

    Establishing a connection:
    1Enter the host name.
    2Select the connection type: Automatic or Static.
    3For the Static connection type, enter the IP address, subnet mask, DNS, and gateway.
    4Click the Connect button.
    ✓The connection is established.

    After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

    WLAN:

    Establishing a connection via WPS:
      ☐

      The access point of the inverter must be active. This is opened by touching the sensor    > Communications LED flashes blue

    Ihr Browser kann diesen Film leider nicht anzeigen.
    1.
    Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).
    2.
    Enter the password from the rating plate and confirm.
    IMPORTANT!
    To enter the password in Windows 10, first select the Connect using a security key instead link to be able to establish the connection with the password.
    3.
    Enter the IP address 192.168.250.181 in the address bar of the browser and confirm.
    4.
    In the Communication > Network > WLAN > WPS menu area, click the Activate button.
    5.
    Activate WPS on the WLAN router (see WLAN router documentation).
    6.
    Click on the Start button. The connection is established automatically.
    7.
    Log in to the user interface of the inverter.
    8.
    Check the network details and connection to Fronius Solar.web.
    1Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).
    2Enter the password from the rating plate and confirm.
    IMPORTANT!
    To enter the password in Windows 10, first select the Connect using a security key instead link to be able to establish the connection with the password.
    3Enter the IP address 192.168.250.181 in the address bar of the browser and confirm.
    4In the Communication > Network > WLAN > WPS menu area, click the Activate button.
    5Activate WPS on the WLAN router (see WLAN router documentation).
    6Click on the Start button. The connection is established automatically.
    7Log in to the user interface of the inverter.
    8Check the network details and connection to Fronius Solar.web.

    After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

    Selecting and connecting to a WLAN network:
    The networks found are displayed in the list. Clicking on the Refresh button will    perform a new search for available WLAN networks. The selection list can be limited further via the Search network input field.
    1Select network from the list.
    2Select the connection type: Automatic or Static.
    3For the Automatic connection type, enter the WLAN password and host name.
    4For the Static connection type, enter the IP address, subnet mask, DNS, and gateway.
    5Click the Connect button.
    ✓The connection is established.

    After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

    Access point:

    The inverter serves as the access point. A PC or smart device connects directly to the inverter. Connecting to the Internet is not possible. In this menu area, Network Name (SSID) and Network Key (PSK) can be assigned.
    It is possible to operate a connection via WLAN and via the access point at the same time.

    1. Settings – User interface of the inverter
    2. Communication

    Network

    Server addresses for data transfer
    If a firewall is used for outgoing connections, the below protocols, server addresses, and ports must be allowed for successful data transfer, see:
    https://www.fronius.com/~/downloads/Solar%20Energy/firmware/SE_FW_Changelog_Firewall_Rules_EN.pdf

    When using FRITZ!Box products, Internet access must be configured without any restrictions or limitations. The DHCP Lease Time (validity) must not be set to 0 (=infinite).

    LAN:

    Establishing a connection:
    1Enter the host name.
    2Select the connection type: Automatic or Static.
    3For the Static connection type, enter the IP address, subnet mask, DNS, and gateway.
    4Click the Connect button.
    ✓The connection is established.

    After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

    WLAN:

    Establishing a connection via WPS:
      ☐

      The access point of the inverter must be active. This is opened by touching the sensor    > Communications LED flashes blue

    Ihr Browser kann diesen Film leider nicht anzeigen.
    1.
    Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).
    2.
    Enter the password from the rating plate and confirm.
    IMPORTANT!
    To enter the password in Windows 10, first select the Connect using a security key instead link to be able to establish the connection with the password.
    3.
    Enter the IP address 192.168.250.181 in the address bar of the browser and confirm.
    4.
    In the Communication > Network > WLAN > WPS menu area, click the Activate button.
    5.
    Activate WPS on the WLAN router (see WLAN router documentation).
    6.
    Click on the Start button. The connection is established automatically.
    7.
    Log in to the user interface of the inverter.
    8.
    Check the network details and connection to Fronius Solar.web.
    1Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).
    2Enter the password from the rating plate and confirm.
    IMPORTANT!
    To enter the password in Windows 10, first select the Connect using a security key instead link to be able to establish the connection with the password.
    3Enter the IP address 192.168.250.181 in the address bar of the browser and confirm.
    4In the Communication > Network > WLAN > WPS menu area, click the Activate button.
    5Activate WPS on the WLAN router (see WLAN router documentation).
    6Click on the Start button. The connection is established automatically.
    7Log in to the user interface of the inverter.
    8Check the network details and connection to Fronius Solar.web.

    After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

    Selecting and connecting to a WLAN network:
    The networks found are displayed in the list. Clicking on the Refresh button will    perform a new search for available WLAN networks. The selection list can be limited further via the Search network input field.
    1Select network from the list.
    2Select the connection type: Automatic or Static.
    3For the Automatic connection type, enter the WLAN password and host name.
    4For the Static connection type, enter the IP address, subnet mask, DNS, and gateway.
    5Click the Connect button.
    ✓The connection is established.

    After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

    Access point:

    The inverter serves as the access point. A PC or smart device connects directly to the inverter. Connecting to the Internet is not possible. In this menu area, Network Name (SSID) and Network Key (PSK) can be assigned.
    It is possible to operate a connection via WLAN and via the access point at the same time.

    1. Settings – User interface of the inverter
    2. Communication

    Modbus

    The inverter communicates with system components (e.g., Fronius Smart Meter) and other inverters via Modbus. The primary device (Modbus Client) sends control commands to the secondary device (Modbus Server). The control commands are executed by the secondary device.

    Modbus 0 (M0) RTU / Modbus 1 (M1) RTU
    If one of the two Modbus RTU interfaces is set to Modbus Server, the following input fields are available:

     

    Baud Rate
    The baud rate influences the speed of the transmission between the individual components connected in the system. When selecting the baud rate, it should be ensured that this is the same on the transmit and receive side.

     

    Parity
    The parity bit can be used for parity checks. This is used to identify transmission errors. In this case, a parity bit can ensure a specified number of bits. The value (0 or 1) of the parity bit must be calculated at the transmitter, and is checked at the receiver using the same calculation. The calculation of the parity bit can be carried out for even or odd parity.

     

    SunSpec Model Type
    There are two different settings, depending on the SunSpec model.

    float: SunSpec Inverter Model 111, 112, 113 or 211, 212, 213.
    int + SF: SunSpec Inverter Model 101, 102, 103 or 201, 202, 203.

     

    Meter Address
    The value entered is the identification number (unit ID) assigned to the meter, which can be found on the user interface of the inverter in the Communication > Modbus menu area.
    Factory setting: 200

     

    Inverter Address
    The value entered is the identification number
    (unit ID) assigned to the inverter, which can be found on the user interface of the inverter in the Communication > Modbus menu area.
    Factory setting: 1

    Modbus Server via TCP
    This setting is necessary to enable inverter control via Modbus. If the Modbus Server via TCP function is activated, the following input fields are available:

     

    Modbus port
    Number of the TCP port to be used for Modbus communication.

     

    SunSpec Model Type
    There are two different settings, depending on the SunSpec model.

    float: SunSpec Inverter Model 111, 112, 113 or 211, 212, 213.
    int + SF: SunSpec Inverter Model 101, 102, 103 or 201, 202, 203.

     

    Meter Address
    The value entered is the identification number (unit ID) assigned to the meter, which can be found on the user interface of the inverter in the Communication > Modbus menu area.
    Factory setting: 200

     

    Allow Control
    If this option is activated, the inverter is controlled via Modbus.
    Inverter control includes the following functions:
    • On/off
    • Power reduction
    • Setting a constant power factor (cos phi)
    • Setting a constant reactive power
    • Battery control settings with battery

     

    Restrict Control
    Here you can enter an IP address that is the only one allowed to control the inverter.

    1. Settings – User interface of the inverter
    2. Communication

    Cloud control

    The utility/energy supplier can influence the output power of the inverter with Cloud control. This requires the inverter to have an active Internet connection.

    Parameter

    Display

    Description

    Cloud control

    Off

    Cloud control of the inverter is deactivated.

    On

    Cloud control of the inverter is activated.

    Profile

    Value range

    Description

    Allow cloud control for regulatory purposes (Technician)

    Deactivated/Activated

    The function may be mandatory for proper operation of the system.*

    Allow cloud control for Virtual Power Plants (Customer)

    Deactivated/Activated

    If the Allow remote control for regulatory purposes (technician) function is activated (technician access required), the Allow remote control for virtual power plants function is automatically activated and cannot be deactivated.*

    * Cloud control
    A virtual power plant is an interconnection of multiple generators. This virtual power plant can be controlled by means of the cloud control via the Internet. An active inverter Internet connection is a prerequisite for this. System data are transferred.

    1. Settings – User interface of the inverter
    2. Communication

    Solar API

    The Solar API is an IP-based, open JSON interface. If enabled, IOT devices in the local network may access inverter information without authentication. For security reasons, the interface is disabled by default and must be enabled if it is required for a third-party application (e.g., EV charger, smart home solutions, etc.) or the Fronius Wattpilot.

    For monitoring, Fronius recommends using Fronius Solar.web, which provides secure access to inverter status and production information.

    In the event of a firmware update to version 1.14.x, the Solar API setting is applied. In systems with a version below 1.14.x, the Solar API is activated; with higher versions, it is deactivated but can be switched on and off via the menu.

    Activating the Fronius Solar API
    On the user interface of the inverter in the Communication > Solar API menu area, activate the function Activate communication via Solar API.

    1. Settings – User interface of the inverter
    2. Communication

    Fronius Solar.web

    In this menu, you can agree to the technically necessary data processing or reject it.

    In addition, the transfer of analysis data and remote configuration via Fronius Solar.web can be enabled or disabled.

    1. Settings – User interface of the inverter
    2. Communication

    Internet services

    Information regarding connections and the current connection status is displayed in this menu. If there are problems with the connection, a short description of the error is displayed.

    1. Settings – User interface of the inverter

    Safety and grid requirements

    Country setup

    WARNING!

    Danger from unauthorized fault analyses and repair work.

    This can result in severe personal injury and damage to property.

    Fault analyses and repair work on the PV system may only be carried out by installers/service technicians from authorized specialist companies in accordance with national standards and regulations.

    NOTE!

    Risk due to unauthorized access.

    Incorrectly set parameters can have a negative effect on the public grid and/or the grid power feed operation of the inverter and result in the loss of standard conformity.

    Parameters may only be adjusted by installers/service technicians from authorized specialist companies.

    Do not give the access code to third parties and/or unauthorized persons.

    NOTE!

    Risk due to incorrectly set parameters.

    Incorrectly set parameters can have a negative effect on the public grid and/or cause inverter malfunctions and failures and result in the loss of standard conformity.

    Parameters may only be adjusted by installers/service technicians from authorized specialist companies.

    Parameters may only be adjusted if this has been approved or requested by the utility.

    Any parameter adjustments must be made in compliance with nationally applicable standards and/or directives as well as the specifications of the utility.

    The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. To apply for the access code required for this menu area, see chapter Requesting inverter codes in Solar.SOS.

    The selected country setup for the country in question contains preset parameters in accordance with nationally applicable standards and requirements. Changes may need to be made to the selected country setup depending on local grid conditions and the specifications of the utility.

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Country setup

    WARNING!

    Danger from unauthorized fault analyses and repair work.

    This can result in severe personal injury and damage to property.

    Fault analyses and repair work on the PV system may only be carried out by installers/service technicians from authorized specialist companies in accordance with national standards and regulations.

    NOTE!

    Risk due to unauthorized access.

    Incorrectly set parameters can have a negative effect on the public grid and/or the grid power feed operation of the inverter and result in the loss of standard conformity.

    Parameters may only be adjusted by installers/service technicians from authorized specialist companies.

    Do not give the access code to third parties and/or unauthorized persons.

    NOTE!

    Risk due to incorrectly set parameters.

    Incorrectly set parameters can have a negative effect on the public grid and/or cause inverter malfunctions and failures and result in the loss of standard conformity.

    Parameters may only be adjusted by installers/service technicians from authorized specialist companies.

    Parameters may only be adjusted if this has been approved or requested by the utility.

    Any parameter adjustments must be made in compliance with nationally applicable standards and/or directives as well as the specifications of the utility.

    The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. To apply for the access code required for this menu area, see chapter Requesting inverter codes in Solar.SOS.

    The selected country setup for the country in question contains preset parameters in accordance with nationally applicable standards and requirements. Changes may need to be made to the selected country setup depending on local grid conditions and the specifications of the utility.

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Requesting inverter codes in Solar.SOS

    The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. The inverter access code required for this menu area can be requested in the Fronius Solar.SOS portal.

    Requesting inverter codes in Fronius Solar.SOS:
    Ihr Browser kann diesen Film leider nicht anzeigen.
    1.
    Open solar-sos.fronius.com in the browser
    2.
    Log in with your Fronius account
    3.
    At the top right, click on the drop-down menu   
    4.
    Select the Show inverter codes menu item
    5.
    A contract page appears on which the request for the access code to change the grid parameters for Fronius inverters is located
    6.
    Accept the terms and conditions of use by checking Yes, I have read and agree to the terms of use and click Confirm & Save
    7.
    After that, the codes can be retrieved in the drop-down menu at the top right under Show inverter codes
    1Open solar-sos.fronius.com in the browser
    2Log in with your Fronius account
    3At the top right, click on the drop-down menu   
    4Select the Show inverter codes menu item
    ✓A contract page appears on which the request for the access code to change the grid parameters for Fronius inverters is located
    5Accept the terms and conditions of use by checking Yes, I have read and agree to the terms of use and click Confirm & Save
    6After that, the codes can be retrieved in the drop-down menu at the top right under Show inverter codes

    CAUTION!

    Risk due to unauthorized access.

    Incorrectly set parameters can have a negative effect on the public grid and/or the grid power feed operation of the inverter and result in the loss of standard conformity.

    Parameters may only be adjusted by installers/service technicians from authorized specialist companies.

    Do not give the access code to third parties and/or unauthorized persons.

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Absolute Generation Limit

    Activating this function limits the output power of the inverter to the specified value in watts.

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Export Limitation

    Energy companies or utilities can prescribe feed-in limits for an inverter (e.g., max. 70% of the kWp or max. 5 kW).
    The feed-in limit takes account of self-consumption in the household before the power of an inverter is reduced:

    • An individual limit can be set.
    • A Fronius Smart Meter can be connected to the Modbus push-in terminal of the data communication area, at the terminals M0/M1- and M0/M1+ for Modbus data.
    • A Fronius Smart Meter IP can also be connected via the TCP connection type.

    The inverter ensures that the PV power that cannot be fed into the public grid is used by the Fronius Ohmpilot so that it does not go to waste. The feed-in limit only becomes active if the power of feeding in is higher than the set power reduction.

    Total DC power of the Entire System
    Input field for the total DC power of the entire system in Wp.
    This value is used if the Maximum grid feed-in power is specified in %.

    Power Control deactivated
    The inverter converts all available PV energy and feeds it into the public grid.

    Power Control activated
    Feeding in limited with the following selection options:

    • Total Power Limit
      The entire photovoltaic system is limited to a fixed feed-in limit. A value must be set for the permissible total power of feeding in.
    • Limit per phase – asymmetric generation
      The optimum per phase is determined. The inverter regulates the individual phases in such a way that the sum of the phases does not exceed the set value. This setting is only necessary if required by national standards and regulations. A value must be set for the permissible total feed-in power for each phase.
    • Limit per phase – weakest phase
      Each individual phase is measured. If the permissible feed-in limit is exceeded on one phase, the total power of the inverter is reduced until the value on the affected phase is permissible again. This setting is only necessary if required by national standards and regulations. A value must be set for the permissible total feed-in power for each phase.

    Export Limit Control (Soft Limit)
    If this value is exceeded, the inverter readjusts down to the set value.

    Export Limit Protection (Hard Limit Trip)
    If this value is exceeded, the inverter switches off within max. 5 seconds. This value must be higher than the value set for Export Limit Control (Soft Limit).

    Maximum grid feed-in power
    Input field for the Maximum grid feed-in power in W or % (setting range: -10 to 100%).
    If there is no meter in the system or if a meter has failed, the inverter limits the power of feeding in to the set value.

    Activate the function Reduce inverter power to 0% for control if meter connection has been lost for control in the event of a fail-safe.

    The use of WiFi for communication between the Smart Meter and the inverter is not recommended for the fail-safe function. Even short-term disconnections can cause the inverter to shut down. This problem is particularly common with weak WLAN signal strengths, a slow or overloaded WLAN connection, and automatic channel selection of the router.

    Limit multiple inverters (only Soft Limit)
    Control of the dynamic feed-in limit for several inverters, for details on configuration, see chapter Dynamic feed-in limit with multiple inverterson page (→).

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Feed-in limit – examples

    Total Power Limit
    (feed-in limit 0 kW with battery)

    Explanation
    No power (0 kW) may be fed into the public grid at the grid feed-in point. The load requirement in the home network (6 kW) is supplied by the power generated by the inverter. Surplus production (4 kW) is stored in the battery.

    Limit per phase – asymmetric generation
    (feed-in limit 0 kW per phase) – asymmetric

    Explanation
    The load requirement in the home network per phase is determined and supplied.

    Limit per phase – asymmetric generation
    (feed-in limit 0 kW per phase with battery) – asymmetric

    Explanation
    The load requirement in the home network per phase is determined and supplied. Additional power required (2 kW) is provided by the battery.

    Limit per phase – weakest phase
    (feed-in limit 0 kW per phase with battery) – symmetrical

    Explanation
    The weakest phase in the load requirement in the home network is determined (phase 1 = 1 kW). The result of the weakest phase (1 kW) is applied to all phases. Phase 1 (1 kW) can be supplied. Phase 2 (2 kW) and phase 3 (3 kW) cannot be supplied, power from the public grid is required (phase 2 = 1 kW, phase 3 = 2 kW). Surplus production (7 kW) is stored in the battery.

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Dynamic feed-in limit with multiple inverters

    IMPORTANT!
    To view and change settings in this menu item, select the user Technician, and enter and confirm the password for the user Technician. Settings in this menu area may only be made by trained and qualified personnel.

    The inverter can be used as a primary device to control dynamic feed-in limits for additional Fronius inverters (secondary devices) so that feed-in limits prescribed by energy companies or utilities can be centrally managed. This control refers to the Soft Limit feed-in limit (see Export Limitation. The following requirements must be met:

    • Power Control and the Limit multiple inverters (only Soft Limit) function are activated and configured on the user interface of the primary device.
    • Primary device and secondary device(s) are physically connected to the same network router via LAN.
    • Inverter Control via Modbus is activated and configured for all secondary devices.
    • The Fronius Smart Meter is configured as a primary meter and connected to the primary device.

    IMPORTANT!
    Only one primary meter is required for the primary device.

    IMPORTANT!
    If a GEN24 inverter with a battery is connected, it must be used as the primary device for dynamic feed-in limits.

    Example connection diagram for dynamic feed-in limit with multiple inverters

    The dynamic feed-in limit is available for the following device combinations:

    Primary device

    Secondary devices

    Fronius GEN24

    Fronius GEN24, Fronius Verto, Fronius Tauro, Fronius SnapINverter with Fronius Datamanager 2.0*

    Fronius Verto

    Fronius GEN24, Fronius Verto, Fronius Tauro, Fronius SnapINverter with Fronius Datamanager 2.0*

    Fronius Tauro

    Fronius GEN24, Fronius Verto, Fronius Tauro, Fronius SnapINverter with Fronius Datamanager 2.0*

    * Up to four additional Fronius SnapINverters can be connected to each Fronius SnapINverter with Fronius Datamanager 2.0.

    Primary meter
    The Fronius Smart Meter acts as the only primary meter and is connected directly to the primary device. The Smart Meter measures the total output power of all inverters into the grid and passes this information to the primary device via Modbus.

    Primary device
    The export limitation is configured on the user interface of the inverter:

    1In the Safety and Grid Regulations > Export Limitation menu area, activate the Power Control function and select Total Power Limit.
    2Configure the country-specific settings.
    3In the Safety and Grid Regulations > Export Limitation menu area, activate the Limit multiple inverters (only Soft Limit) function.

    The primary device automatically scans the network for available secondary devices. A list of the inverters found is displayed. Click the refresh button    to perform the search again.

    4Activate Use Inverter against all secondary devices to which an export limitation applies. Click Use all inverters to enable the function for all secondary devices.

    The status of the inverters listed is displayed as follows:
    • Inactive: Secondary device is not configured for the power control.
    • Disconnected: Secondary device is configured, network connection not possible.
    • Connected: Secondary device is configured and accessible via the network of the primary device.
    5In the Safety and Grid Regulations > I/O Power Management menu area, set the controlling priorities as follows:
    1. I/O Powerlimit
    2. Modbus Control
    3. Export Limitation
    Adding inverters manually
    1Select the Additional inverters menu area.
    2Enter the name, hostname or IP address, and the Modbus address of the secondary device.
    3Click Add inverter +.

    Secondary device
    A secondary device takes over the export limitation of the primary device. No data are sent to the primary device for the export limitation. The following configurations must be set for the power control:

    User interface secondary device GEN24 / Verto / Tauro
    1Select the user Technician and enter the password for the user Technician.
    2In the Modbus menu area, activate the Modbus Server via TCP function.
    3For a fail-safe scenario, in the Safety and Grid Regulations > I/O Power Management menu area, set the controlling priorities as follows:
    1. I/O Powerlimit
    2. Modbus Control
    3. Export Limitation
    4In the Safety and Grid Regulations > Export Limitation menu area, select and edit the following settings:
    • Activate the Power Control function
    • Select Total Power Limit and specify the total DC power of the entire system in W
    • Enable Export Limit Control (Soft Limit) and enter a value of 0 W for the Maximum grid feed-in power.
    • Enable the Reduce inverter power to 0% if meter connection has been lost function
    User interface secondary device Fronius Datamanager 2.0
    1 Select the user Admin and enter the password for the user Admin.
    2In the Settings – Modbus menu area, activate the Exporting data via Modbus and Inverter control via Modbus functions.
    3In the DNO Editor > Control priorities menu area, set the control priorities for a fail-safe scenario as follows:
    1. I/O control
    2. Control via Modbus
    3. Dynamic power reduction
    4Select the DNO Editor > Dynamic power reduction menu area
    5Under the menu item Export Limitation, activate the Limit for entire system function and apply the following settings:
    • Specify the total DC power of the entire system in W
    • Enable Export Limit Control (Soft Limit) and enter a value of 0 W for the Maximum grid feed-in power.
    • Enable the Reduce inverter power to 0% if meter connection has been lost function
    ✓The dynamic feed-in limit with multiple inverters has been configured.

    IMPORTANT!
    The secondary device automatically stops energy being fed into the grid in the event of a communication failure if the Modbus control does not send a signal to the inverter.

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    I/O Power Management

    General
    Settings relevant to a grid operator are made under this menu item. Rules for an effective power limit in % and/or a power factor limit in watts can be set.

    IMPORTANT!
    To view and change settings in this menu item, select the user Technician, and enter and confirm the password for the user Technician. Settings in this menu area may only be made by trained and qualified personnel.

    Input pattern (assignment of individual I/Os)
    1 click = white (contact open)
    2 clicks = blue (contact closed)
    3 clicks = gray (not used)

    Power Factor (cos φ) (define value)

    Impedance response

    • Capacitive
    • Inductive

    DNO feedback
    If the rule is activated, the DNO feedback output (pin 1 recommended) must be configured (e.g., for operating a signal device).

    The following rules for power management can be defined:

    • I/O Generation Limit local (%): The output power of the inverter is limited to the defined value of the absolute effective power.
    • Export Limit Control (W): The effective power is reduced to a defined value (e.g., 5000 watts).
    • Shutdown: The inverter stops grid power feed operation and switches to standby mode.

    The data format *.fpc is supported for the Import and Export of defined rules.

    If there is an active rule for the control of the inverter, this is shown in the overview of the user interface under Device State.

    Controlling Priorities
    Used to set controlling priorities for I/O power management (DRM or ripple control receiver), the export limitation, and control via Modbus.

    1 = highest priority, 3 = lowest priority

    Local priorities of the I/O power management, the export limitation, and the Modbus interface are overridden by cloud control commands (regulatory purposes and virtual power plants) – see Cloud control on page (→) and by backup power.

    The controlling priorities are differentiated internally by power control and inverter shutdown. Inverter shutdown always takes precedence over power control. An inverter shutdown command is always executed, regardless of the priority.

    Power control
    • I/O Powerlimit (DRM/ripple control receiver signal) – according to command
    • Export Limitation (Soft Limit) – always active
    • Modbus (generation limit) – according to command
    Inverter shutdown
    • I/O Powerlimit with export limitation = 0% (DRM/ripple control receiver signal) – according to command
    • Export Limitation (Hard Limit)
    • Modbus (shutdown command) – according to command
    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Connection diagram - 4 relays

    The ripple control signal receivers and the I/O terminals of the inverter can be connected to one another as shown in the connection diagram.
    For distances of over 10 m between the inverter and the ripple control signal receiver, a CAT 5 STP cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).

    (1)
    Ripple control signal receiver with four relays for effective power limitation.
    (2)
    I/Os of the data communication area.
    Use pre-configured file for 4-relay operation:
    1Download the file (.fpc) under 4-relay operation to the mobile device.
    2Upload the file (.fpc) in the I/O Power Management menu area by clicking the Import button.
    3Click Save.
    ✓The settings for 4-relay operation are saved.
    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    I/O power management settings - 4 relays

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Connection diagram - 3 relays

    The ripple control signal receivers and the I/O terminals of the inverter can be connected to one another as shown in the connection diagram.
    For distances of over 10 m between the inverter and the ripple control signal receiver, a CAT 5 STP cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).

    (1)
    Ripple control signal receiver with three relays for effective power limitation.
    (2)
    I/Os of the data communication area.
    Use pre-configured file for 3-relay operation:
    1Download the file (.fpc) under 3-relay operation to the mobile device.
    2Upload the file (.fpc) in the I/O Power Management menu area by clicking the Import button.
    3Click Save.
    ✓The settings for 3-relay operation are saved.
    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    I/O power management settings - 3 relays

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Connection diagram - 2 relays

    The ripple control signal receivers and the I/O terminals of the inverter can be connected to one another as shown in the connection diagram.
    For distances of over 10 m between the inverter and the ripple control signal receiver, a CAT 5 STP cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).

    (1)
    Ripple control signal receiver with two relays for effective power limitation.
    (2)
    I/Os of the data communication area.
    Use pre-configured file for 2-relay operation:
    1Download the file (.fpc) under 2-relay operation to the mobile device.
    2Upload the file (.fpc) in the I/O Power Management menu area by clicking the Import button.
    3Click Save.
    ✓The settings for 2-relay operation are saved.
    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    I/O power management settings - 2 relays

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Connection diagram - 1 relay

    The ripple control signal receivers and the I/O terminals of the inverter can be connected to one another as shown in the connection diagram.
    For distances of over 10 m between the inverter and the ripple control signal receiver, a CAT 5 STP cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).

    (1)
    Ripple control signal receiver with one relay for effective power limitation.
    (2)
    I/Os of the data communication area.
    Use pre-configured file for 1-relay operation:
    1Download the file (.fpc) under 1-relay operation to the mobile device.
    2Upload the file (.fpc) in the I/O Power Management menu area by clicking the Import button.
    3Click Save.
    ✓The settings for 1-relay operation are saved.
    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    I/O power management settings - 1 relay

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Connecting the ripple control receiver with several inverters

    The grid operator may request the connection of one or more inverters to a ripple control receiver in order to limit the effective power and/or the power factor of the photovoltaic system.

    Connection diagram for ripple control receiver with several inverters

    The following Fronius inverters can be connected to the ripple control receiver via a distributor (coupling relay):

    • Symo GEN24
    • Primo GEN24
    • Tauro
    • SnapINverter (only devices with Fronius Datamanager 2.0)

    IMPORTANT!
    On the user interface of each inverter connected to the ripple control receiver, the 4-relay mode setting (see Connection diagram - 4 relays and I/O power management settings - 4 relays) must be activated.

    1. Settings – User interface of the inverter
    2. Safety and grid requirements

    Autotest
    (CEI 0-21)

    Description
    The Autotest makes it possible to check the Italian protection function, required by the applicable standard for monitoring the voltage and frequency limit values of the inverter during commissioning. In normal operation, the inverter constantly checks the real-time actual value of the voltage and frequency of the grid.
    Once the Autotest has started, different individual tests are carried out automatically, in succession. Depending on the grid conditions, the duration of the test is approximately 15 minutes.

    IMPORTANT!
    In Italy, the inverter may only be commissioned following a successfully completed Autotest (CEI 0-21). If an Autotest is not passed, grid power feed operation may not take place. Once the Autotest is started, it must be completed successfully. The Autotest cannot be started during backup power mode.

    Umax

    Test for checking the maximum voltage in the phase conductors

    Umin

    Test for checking the minimum voltage in the phase conductors

    fmax

    Test for checking the maximum mains frequency

    fmin

    Test for checking the minimum mains frequency

    fmax alt

    Test for checking an alternative maximum mains frequency

    fmin alt

    Test for checking an alternative minimum mains frequency

    U outer min

    Test for checking the minimum outer voltages

    U longT.

    Test for checking the 10 min. voltage average

    Print to PDF
    1Click the Print to PDF button.
    2Enter the file name into the input field and click on the Print button.
    ✓The PDF is created and shown.

    Note on the Autotest
    The limit values are set in the Safety and Grid Regulations > Country Setup > Grid Support Functions menu area.
    The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. The inverter access code required for this menu area can be requested in the Fronius Solar.SOS portal (see chapter Requesting inverter codes in Solar.SOS on page (→)).

    Options

    Surge protection device (SPD)

    General

    A surge protection device (SPD) protects against temporary overvoltages and diverts surge currents (e.g., lightning strike). Based on an overall lightning protection concept, the SPD contributes to the protection of the photovoltaic system components.
    For detailed information on the wiring diagram of the surge protection device, see chapter Appendix: Surge protection device (SPD) on page (→).

    If the surge protection device is triggered, the color of the indicator changes from green to red (mechanical display) and the operating status LED of the inverter lights up red (see chapter Button functions and LED status indicator on page (→)). The error code 1030 WSD Open is displayed on the user interface of the inverter in the System > Event Log menu area or in the user menu under Notifications and in Fronius Solar.web. In this case, the inverter must be repaired by an authorized specialist company.

    IMPORTANT!
    The inverter also switches off if the 2-pin signal cable of the surge protection device is interrupted or damaged.

    External surge protection device
    To receive a notification when external surge protection devices are triggered, it is recommended to connect the feedback contacts connected in series to the WSD input.

    1. Options

    Surge protection device (SPD)

    General

    A surge protection device (SPD) protects against temporary overvoltages and diverts surge currents (e.g., lightning strike). Based on an overall lightning protection concept, the SPD contributes to the protection of the photovoltaic system components.
    For detailed information on the wiring diagram of the surge protection device, see chapter Appendix: Surge protection device (SPD) on page (→).

    If the surge protection device is triggered, the color of the indicator changes from green to red (mechanical display) and the operating status LED of the inverter lights up red (see chapter Button functions and LED status indicator on page (→)). The error code 1030 WSD Open is displayed on the user interface of the inverter in the System > Event Log menu area or in the user menu under Notifications and in Fronius Solar.web. In this case, the inverter must be repaired by an authorized specialist company.

    IMPORTANT!
    The inverter also switches off if the 2-pin signal cable of the surge protection device is interrupted or damaged.

    External surge protection device
    To receive a notification when external surge protection devices are triggered, it is recommended to connect the feedback contacts connected in series to the WSD input.

    1. Options
    2. Surge protection device (SPD)

    General

    A surge protection device (SPD) protects against temporary overvoltages and diverts surge currents (e.g., lightning strike). Based on an overall lightning protection concept, the SPD contributes to the protection of the photovoltaic system components.
    For detailed information on the wiring diagram of the surge protection device, see chapter Appendix: Surge protection device (SPD) on page (→).

    If the surge protection device is triggered, the color of the indicator changes from green to red (mechanical display) and the operating status LED of the inverter lights up red (see chapter Button functions and LED status indicator on page (→)). The error code 1030 WSD Open is displayed on the user interface of the inverter in the System > Event Log menu area or in the user menu under Notifications and in Fronius Solar.web. In this case, the inverter must be repaired by an authorized specialist company.

    IMPORTANT!
    The inverter also switches off if the 2-pin signal cable of the surge protection device is interrupted or damaged.

    External surge protection device
    To receive a notification when external surge protection devices are triggered, it is recommended to connect the feedback contacts connected in series to the WSD input.

    1. Options
    2. Surge protection device (SPD)

    Safety

    WARNING!

    Danger due to electrical voltage on live parts of the photovoltaic system.

    This can result in serious injury and damage to property.

    Disconnect live parts of the photovoltaic system on all pins and on all sides.

    Secure against re-activation in accordance with national regulations.

    Allow the capacitors of the inverter to discharge (2 minutes).

    Check that the inverter is de-energized with a suitable measuring device.

    WARNING!

    Danger due to work that has been carried out incorrectly.

    This can result in serious injury and damage to property.

    Installing and connecting an option must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.

    Follow the safety rules.

    1. Options
    2. Surge protection device (SPD)

    Scope of supply

    The surge protection device (SPD) is available as an option and can be retrofitted to the inverter.

    For technical data, see chapter Technical data on page (→).

    1. PC board
    2. 4 pcs TX20 screws
    3. Ground conductor
    4. 2-pin signal cable
    5. PV- cable
    6. PV+ cable
    7. User information
    1. Options
    2. Surge protection device (SPD)

    De-energizing the inverter

    1

    Turn off the automatic circuit breaker. Set the DC disconnector to the "off" switch position.

    2

    Disconnect connections from the solar module strings (+/-). Switch off the battery connected to the inverter.

    Wait for the capacitors of the inverter to discharge (2 minutes).

    1. Options
    2. Surge protection device (SPD)

    Installation

    CAUTION!

    Danger due to insufficiently dimensioned ground conductor.

    Damage to the inverter due to thermal overload can result.

    The national standards and guidelines must be observed for dimensioning the ground conductor.

    1

    Loosen the two screws on the underside of the housing cover by rotating them 180° to the left using a screwdriver (TX20). Then lift the housing cover away from the inverter at the bottom and detach from above.

    2

    Loosen the five screws of the connection area cover by rotating them 180° to the left using a screwdriver (TX20).
    Remove the connection area cover from the device.

    3

    Remove the connection area divider by pressing the snap tabs.

    4

    Remove the DC push-in terminals from the slots and disconnect them from the cables (only necessary if the installation already exists).

    5

    Connect the supplied PV+/PV- cables to the respective connections.

    IMPORTANT!
    Note the labeling of the cables when connecting.

    6

    Connect the supplied cables to the respective connections on the PC board.

    IMPORTANT!
    The plugs must be connected onto the PC board as far as they will go.

    7

    Insert the PC board into the inverter and secure with the four screws (TX20) supplied at a torque of 1.0‑1.2 Nm.

    8

    IMPORTANT!
    Depending on national standards and guidelines, a larger cross-section of the ground conductor may be required.

    Dimension the cable cross-section of the ground conductor according to the national standards and guidelines and fit a ring cable lug (inner diameter: 4 mm, outer diameter: max. 10 mm) as well as a corresponding ferrule. Fasten the ground conductor to the PC board with a torque of 1.5 Nm.

    9

    Fasten the ground conductor to the first input from the bottom of the ground electrode terminal using a screwdriver (TX20) and a torque of 1.8-2 Nm.

    IMPORTANT!
    The use of other inputs can make it difficult to insert the connection area divider or can damage the ground conductor.

    10

    Strip the insulation on the single conductors by 12 mm and secure to the corresponding slot of the terminal on the PC board with a torque of 1.2-1.5 Nm.

    IMPORTANT!
    The cable cross-section must be selected according to the specifications for the respective inverter power category (see chapter Permissible cables for the electrical connection on page (→)).

    11

    Push the DC push-in terminals into the corresponding slot until there is an audible click.

    12

    Re-insert the connection area divider.

    * Lay the ground conductor in the integrated cable duct.

    IMPORTANT!
    Make sure when inserting the connection area divider that the ground conductor is not damaged (kinked, pinched, crushed, etc.).

    13

    Remove the factory installed bypass on the push-in WSD terminal.

    14

    Connect the signal cable to the push-in WSD terminal on the IN- and IN+ slots, observing the labeling.

    15

    Check whether the WSD switch is in position 1, adjust if necessary (factory setting: position 1).

    16

    Place the cover on the connection area. Tighten the five screws by rotating them 180° to the right in the indicated order using a screwdriver (TX20).

    17

    Clip the housing cover onto the inverter from above.
    Press on the lower part of the housing cover and tighten the two screws by rotating them 180° to the right using a screwdriver (TX20).

    1. Options
    2. Surge protection device (SPD)

    Starting up the inverter

    1

    Connect the solar module strings (+/-). Switch on the battery connected to the inverter.

    2

    Set the DC disconnector to the "on" switch position. Turn on the automatic circuit breaker.

    1. Options

    DC Connector Kit GEN24

    General

    The DC Connector Kit GEN24 (item no.: 4,240,046) enables the connection of PV connection strings with a total current above 25 A.

    1. Options
    2. DC Connector Kit GEN24

    General

    The DC Connector Kit GEN24 (item no.: 4,240,046) enables the connection of PV connection strings with a total current above 25 A.

    1. Options
    2. DC Connector Kit GEN24

    General comments regarding PV modules

    To enable suitable PV modules to be chosen and to use the inverter as efficiently as possible, it is important to bear the following points in mind:

    • If insolation is constant and the temperature is falling, the open-circuit voltage of the PV modules will increase. The open-circuit voltage must not exceed the maximum permissible system voltage. If the open-circuit voltage exceeds the specified values, the inverter will be destroyed and all warranty claims will be forfeited.
    • The temperature coefficients on the data sheet of the PV modules must be observed.
    • Exact values for sizing the PV modules can be obtained using suitable calculation tools, such as the Fronius Solar.creator.

    IMPORTANT!
    Before connecting up the PV modules, check that the voltage for the PV modules specified by the manufacturer corresponds to the actual measured voltage.

    IMPORTANT!
    The PV modules connected to the inverter must comply with the IEC 61730 Class A standard.

    IMPORTANT!
    Solar module strings must not be earthed.

    1. Options
    2. DC Connector Kit GEN24

    Safety

    WARNING!

    Danger from incorrect operation and work that is not carried out properly.

    This can result in severe personal injury and damage to property.

    The commissioning, maintenance, and service work in the inverter's power stage set may only be carried out by Fronius-trained service personnel in accordance with the technical specifications.

    Read the installation instructions and operating instructions before installing and commissioning the equipment.

    WARNING!

    Danger from mains voltage and DC voltage from PV modules that are exposed to light.

    This can result in severe personal injury and damage to property.

    All connection, maintenance, and service work should only be carried out when the AC and DC sides have been disconnected from the inverter and are de-energized.

    Only an authorized electrical engineer is permitted to connect this equipment to the public grid.

    WARNING!

    Danger of an electric shock due to improperly connected terminals/PV plug connectors.

    An electric shock can be fatal.

    When connecting, ensure that each pole of a string is routed via the same PV input, e.g.:
    + pole string 1 to the input PV 1.1+ and - pole string 1 to the input PV 1.1-

    WARNING!

    Danger from damaged and/or contaminated terminals.

    This can result in severe personal injury and damage to property.

    Prior to connection work, check the terminals for damage and contamination.

    Remove any contamination while the equipment is de-energized.

    Have defective terminals replaced by an authorized specialist company.

    1. Options
    2. DC Connector Kit GEN24

    Scope of supply

    The DC Connector Kit GEN24 is an optional extra and can be retrofitted to the inverter.

    1. User Information
    2. 2 TX20 screws
    3. DC Connector Kit GEN24
    1. Options
    2. DC Connector Kit GEN24

    De-energizing the inverter

    1

    Turn off the automatic circuit breaker. Set the DC disconnector to the "off" switch position.

    2

    Disconnect connections from the solar module strings (+/-). Switch off the battery connected to the inverter.

    Wait for the capacitors of the inverter to discharge (2 minutes).

    1. Options
    2. DC Connector Kit GEN24

    Installation

    CAUTION!

    Danger due to insufficiently dimensioned DC cables.

    Damage to the inverter due to thermal overload can result.

    When dimensioning the DC cables, adhere to the specifications in Permissible cables for the electrical connection on page (→).

    1

    Loosen the two screws on the underside of the housing cover by rotating them 180° to the left using a screwdriver (TX20). Then lift the housing cover away from the inverter at the bottom and detach from above.

    2

    Loosen the 5 screws of the connection area cover by rotating them 180° to the left using a screwdriver (TX20).
    Remove the connection area cover from the device.

    3

    Insert the DC Connector GEN24 into the inverter and secure with the two screws (TX20) supplied at a torque of 1.0‑1.2 Nm.

    4

    Manually push the DC cables through the DC bushings.

    5

    Press the lock on the back of the terminal and remove the DC terminals.

    6

    Strip the insulation of the single conductors by 18-20 mm.
    Select the cable cross-section in accordance with the instructions in Permissible cables for the electrical connection from page (→).

    7

    Use a slotted screwdriver to push in the lock on the terminal. Insert the stripped single conductor into the slot provided, in each case as far as it will go. Then withdraw the slotted screwdriver from the lock.

    8

    Connect the solar module strings (+/-).

    9

    Use a suitable measuring instrument to check the voltage and polarity of the DC cabling.

    CAUTION!

    Danger due to polarity reversal at the terminals.

    This may result in severe damage to the inverter.

    Check the voltage (max. 1,000 VDC) and polarity of the DC cabling with a suitable measuring instrument.

    10

    Insert the DC terminals into the respective slot until they engage. Fasten the screws of the strain-relief device to the housing using a screwdriver (TX20) and tighten to a torque of 1.3-1.5 Nm.

    NOTE!

    Risk due to overtorque at the strain-relief device.

    This may result in damage to the strain-relief device.

    Do not use a drill driver.

    11

    Place the cover on the connection area. Tighten the 5 screws by rotating them 180° to the right in the indicated order using a screwdriver (TX20).

    12

    Clip the housing cover onto the inverter from above.
    Press on the lower part of the housing cover and tighten the 2 screws by rotating them 180° to the right using a screwdriver (TX20).

    1. Options
    2. DC Connector Kit GEN24

    Starting up the inverter

    1

    Connect the solar module strings (+/-). Switch on the battery connected to the inverter.

    2

    Set the DC disconnector to the "on" switch position. Turn on the automatic circuit breaker.

    1. Options

    PV Point Comfort

    Safety

    WARNING!

    Danger due to electrical voltage on live parts of the photovoltaic system.

    This can result in serious injury and damage to property.

    Disconnect live parts of the photovoltaic system on all pins and on all sides.

    Secure against re-activation in accordance with national regulations.

    Allow the capacitors of the inverter to discharge (2 minutes).

    Check that the inverter is de-energized with a suitable measuring device.

    WARNING!

    Danger due to work that has been carried out incorrectly.

    This can result in serious injury and damage to property.

    Installing and connecting an option must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.

    Follow the safety rules.

    WARNING!

    Danger due to damaged and/or contaminated terminals.

    This can result in serious injury and damage to property.

    Before making any connections, check the terminals for damage and contamination.

    Remove contamination in the de-energized state.

    Have defective terminals repaired by an authorized specialist.

    CAUTION!

    Danger due to electrostatic discharge (ESD).

    This may result in damage to electronic components.

    Pay attention to the ESD marking on the product and/or on the packaging.

    Take ESD protection measures (grounding, neutralizing, and shielding).

    NOTE!

    The continuous supply via the PV Point depends on the available PV power.

    If the solar modules are not supplying enough power, interruptions may occur.

    Do not connect any loads that require an uninterruptible supply.

    IMPORTANT!
    The valid national laws, standards, and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied.
    It is highly recommended that the specific installation be agreed with the grid operator and explicitly approved by this operator. This obligation applies to system constructors in particular (e.g., installers).

    1. Options
    2. PV Point Comfort

    Safety

    WARNING!

    Danger due to electrical voltage on live parts of the photovoltaic system.

    This can result in serious injury and damage to property.

    Disconnect live parts of the photovoltaic system on all pins and on all sides.

    Secure against re-activation in accordance with national regulations.

    Allow the capacitors of the inverter to discharge (2 minutes).

    Check that the inverter is de-energized with a suitable measuring device.

    WARNING!

    Danger due to work that has been carried out incorrectly.

    This can result in serious injury and damage to property.

    Installing and connecting an option must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations.

    Follow the safety rules.

    WARNING!

    Danger due to damaged and/or contaminated terminals.

    This can result in serious injury and damage to property.

    Before making any connections, check the terminals for damage and contamination.

    Remove contamination in the de-energized state.

    Have defective terminals repaired by an authorized specialist.

    CAUTION!

    Danger due to electrostatic discharge (ESD).

    This may result in damage to electronic components.

    Pay attention to the ESD marking on the product and/or on the packaging.

    Take ESD protection measures (grounding, neutralizing, and shielding).

    NOTE!

    The continuous supply via the PV Point depends on the available PV power.

    If the solar modules are not supplying enough power, interruptions may occur.

    Do not connect any loads that require an uninterruptible supply.

    IMPORTANT!
    The valid national laws, standards, and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied.
    It is highly recommended that the specific installation be agreed with the grid operator and explicitly approved by this operator. This obligation applies to system constructors in particular (e.g., installers).

    1. Options
    2. PV Point Comfort

    Scope of supply

    The PV Point Comfort is available as an option and can be retrofitted to the inverter.

    For technical data, see chapter Technical data on page (→).

    1. Insulation film
    2. PV Point Comfort
    3. PEN connection
    4. Phase/neutral conductors
    5. 4 pcs TX20 screws
    6. Cable gland
    7. User information
    1. Options
    2. PV Point Comfort

    De-energizing the inverter

    1

    Turn off the automatic circuit breaker. Set the DC disconnector to the "off" switch position.

    2

    Disconnect connections from the solar module strings (+/-). Switch off the battery connected to the inverter.

    Wait for the capacitors of the inverter to discharge (2 minutes).

    1. Options
    2. PV Point Comfort

    Installation

    CAUTION!

    Danger due to insufficiently dimensioned ground conductor.

    Damage to the inverter due to thermal overload can result.

    The national standards and guidelines must be observed for dimensioning the ground conductor.

    1

    Loosen the 2 screws on the underside of the housing cover by rotating them 180° to the left using a screwdriver (TX20). Then lift the housing cover away from the inverter at the bottom and detach from above.

    2

    Loosen the 5 screws of the connection area cover by rotating them 180° to the left using a screwdriver (TX20).
    Remove the connection area cover from the device.

    3

    Press the lock on the back of the terminal and remove the AC terminals. Loosen the cable gland.

    4

    Disconnect the single conductors from the AC terminal (only necessary if the installation already exists).

    5

    Take the ferrite core off and remove the mains cable from the inverter.

    6

    Drill out the optional cable bushing with a step drill.

    7

    Insert the cable gland into the hole and tighten to a torque of 6 Nm.

    8

    Insert the insulating film on the right side of the ground electrode terminal.

    9

    Insert the PC board into the inverter.

    10

    Fasten the PC board with the 4 screws (TX20) supplied and tighten to a torque of 1.2 Nm.

    11

    Strip the insulation of the single conductors by 12 mm. Lift to open the AC terminal's operating lever and insert the stripped single conductor into the slot provided, all the way up to the stop. Then close the operating lever until it engages.

    IMPORTANT!
    The PEN connection must be designed according to the national provisions; if necessary, the supplied PEN connection must be replaced.

    12

    Fasten the supplied PEN connection at the second input of the ground electrode terminal from the top using a screwdriver (TX20) and a torque of 1.8-2 Nm.

    13

    Strip the insulation of the single conductors by 12 mm.
    The cable cross-section must be selected according to the specifications for the respective inverter power category (see chapter Permissible cables for the electrical connection on page (→)).
    The residual current circuit breaker and automatic circuit breaker must be designed according to the national provisions.

    IMPORTANT!
    If necessary, an automatic circuit breaker with max. 16 A can also be used for protection. In backup power mode, a maximum of 13 A can be supplied. If the inverter is protected by an automatic circuit breaker with max. 16 A, there is no need for an additional automatic circuit breaker.
    The residual current circuit breaker and the automatic circuit breaker must be designed according to the national provisions.

    14

    Route the phase/neutral conductors through the ferrite core. Fasten the ground conductor at the third input to the ground electrode terminal from the top using a screwdriver (TX20) and a torque of 1.8-2 Nm.

    IMPORTANT!
    The ground conductors should not be routed through the ferrite core and must be connected with a movement loop so that if the cable glands fail, the ground conductors are disconnected last.

    15

    Connect the stripped phase/neutral conductors to the terminals provided.

    16

    Insert the terminals into the respective slot until they engage. Fasten the union nuts of the cable glands to a torque of 4 Nm.

    17

    Place the cover on the connection area. Tighten the 5 screws by rotating them 180° to the right in the indicated order using a screwdriver (TX20).

    18

    Clip the housing cover onto the inverter from above.
    Press on the lower part of the housing cover and tighten the 2 screws by rotating them 180° to the right using a screwdriver (TX20).

    1. Options
    2. PV Point Comfort

    Starting up the inverter

    1

    Connect the solar module strings (+/-). Switch on the battery connected to the inverter.

    2

    Set the DC disconnector to the "on" switch position. Turn on the automatic circuit breaker.

    1. Options
    2. PV Point Comfort

    Configuring the PV Point Comfort

    Firmware version 1.25.2 or higher is required to commission the PV Point Comfort. Outdated firmware versions could lead to incompatibilities between the inverter and PV Point Comfort. In this case, the inverter firmware should be updated in accordance with the chapter headed Update on page (→).

    1Call up the user interface of the inverter.
    - Open web browser.
    - In the browser's address bar, enter the IP address (IP address for WLAN: 192.168.250.181, IP address for LAN: 169.254.0.180) or enter and confirm the host and domain name of the inverter.
    ✓The user interface of the inverter is displayed.
    2Click on the Device Configuration button.
    3Log in to the login area with user Technician and the technician password.
    4Go to the Device Configuration > Functions and I/Os menu area.
    5Enable the Backup Power function.
    6Select PV Point mode in the Backup Power Mode drop-down list.
    7Click the Save button to save the settings.
    ✓The PV Point backup power mode has been configured.
    1. Options
    2. PV Point Comfort

    Testing backup power mode

    Testing backup power mode is recommended:
    • During the initial installation and configuration
    • After working on the switch cabinet
    • During ongoing operation (recommendation: at least once a year)

    For test mode, a battery charge of min. 30% is recommended.

    A description on how to run test mode can be found in the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365).

    Appendix

    Service, maintenance and disposal

    General

    The inverter is designed so that it does not require additional maintenance work. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.

    1. Appendix

    Service, maintenance and disposal

    General

    The inverter is designed so that it does not require additional maintenance work. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.

    1. Appendix
    2. Service, maintenance and disposal

    General

    The inverter is designed so that it does not require additional maintenance work. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.

    1. Appendix
    2. Service, maintenance and disposal

    Maintenance

    Maintenance and service work may only be carried out by Fronius-trained service technicians.

    1. Appendix
    2. Service, maintenance and disposal

    Cleaning

    Wipe the inverter, if necessary, with a damp cloth.
    Do not use cleaning agents, scouring agents, solvents, or similar products to clean the inverter.

    1. Appendix
    2. Service, maintenance and disposal

    Safety

    The DC disconnector is used only to switch off power to the power stage set. When the DC disconnector is turned off, the connection area is still energized.

    WARNING!

    Danger from mains voltage and DC voltage from PV modules.

    This can result in severe personal injury and damage to property.

    The connection area must only be opened by an authorized electrician.

    The separate power stage set area must only be opened by Fronius-trained service technicians.

    Prior to any connection work, ensure that the inverter is de-energized on the AC side and the DC side.

    WARNING!

    Danger of residual voltage from capacitors.

    This can result in severe personal injury and damage to property.

    Allow the capacitors of the inverter to discharge (2 minutes).

    1. Appendix
    2. Service, maintenance and disposal

    Operation in dusty environments

    NOTE!

    If the inverter is operated in dusty environments, dirt may build up on the heat sink and fan.

    This may result in a loss of power due to insufficient cooling of the inverter.

    Make sure that the ambient air can always flow through the inverter's ventilation slots unimpeded.

    Remove any build-ups of dirt from the heat sink and the fan.

    1

    Switch off power to the inverter and wait for the capacitors to discharge (2 minutes) and the fan to shut down.
    Turn the DC disconnector to the "off" switch setting.

    2

    Loosen the screws on the underside of the housing cover by rotating them 180° to the left using a screwdriver (TX20). Then lift the housing cover away from the inverter at the bottom and detach from above.

    3

    Remove any build-up of dirt on the heat sink and fan using compressed air, a cloth, or a brush.

    NOTE!

    Risk due to damage to the fan bearing in the event of incorrect cleaning.

    Excessive speeds and the application of pressure to the fan bearing can cause damage.

    Block the fan and clean with compressed air.

    When using a cloth or brush, clean the fan without applying any pressure.

    To start up the inverter again, follow the steps listed above in reverse order.

    1. Appendix
    2. Service, maintenance and disposal

    Disposal

    Waste electrical and electronic equipment must be collected separately and recycled in an environmentally sound manner in accordance with the European Directive and national law. Used equipment must be returned to the distributor or through a local authorized collection and disposal system. Proper disposal of the used device promotes sustainable recycling of resources and prevents negative effects on health and the environment.

    Packaging materials
    • Collect separately
    • Observe local regulations
    • Crush cardboard boxes
    1. Appendix

    Warranty provisions

    Fronius manufacturer's warranty

    Detailed, country-specific warranty conditions are available at www.fronius.com/solar/warranty.

    To obtain the full warranty period for your newly installed Fronius product, please register at www.solarweb.com.

    1. Appendix
    2. Warranty provisions

    Fronius manufacturer's warranty

    Detailed, country-specific warranty conditions are available at www.fronius.com/solar/warranty.

    To obtain the full warranty period for your newly installed Fronius product, please register at www.solarweb.com.

    1. Appendix

    Components for switching to backup power

    Components for automatic backup power changeover to Full Backup

    Fronius components
    With the following Fronius components, no additional components are required for the automatic changeover to backup power. If components are not available depending on national availability, automatic changeover to backup power can be implemented with the following third-party components.

     Product

    Item number

    Fronius Backup Controller 3P-35A

    4,240,047,CK

    Fronius Smart Meter 63A-3

    43,0001,1473

    Fronius Smart Meter 50kA-3

    43,0001,1478

    Fronius Smart Meter TS 65A-3

    43,0001,0044

    Fronius Smart Meter TS 5kA-3

    43,0001,0046

    Fronius Smart Meter WR

    43,0001,3591

    Third-party components
    Manufacturers/types other than the product examples listed are permissible, provided that they meet the same technical and functional requirements.

    Grid and system protection

    Manufacturer/type

    Bender GmbH & Co. KG VMD460-NA-D-2
    Tele Haase Steuergeräte Ges.m.b.H. RE-NA003-M64

    K1 and K2 - AC installation contactor with auxiliary contact

    Number of pins

    3-pin or 4-pin
    (depending on the cabling variant)

    Rated current

    depending on the house connection

    Coil voltage

    230 VAC

    Rated frequency

    50/60 Hz

    Coil fuse

    6 A

    Min. short circuit current

    3 kA (contacts)

    Test standard

    IEC 60947-4-1

    Auxiliary contact

    Number of NC contacts

    1

    Switching voltage

    12 - 230 V @ 50 / 60 Hz

    Min. nominal current

    1 A

    Min. short circuit current

    1 kA

    Manufacturer/type

    ISKRA IK63-40 / Schrack BZ326461

    Buffer power supply - Fault Ride Through cabling variant

    Manufacturer/type

    BKE JS-20-240/DIN_BUF

    K1 and K2 - DC installation contactor with auxiliary contact (Fault Ride Through)

    Number of pins

    3-pin or 4-pin
    (depending on the cabling variant)

    Rated current

    depending on the house connection

    Coil voltage

    24 VDC

    Min. short circuit current

    3 kA (contacts)

    Test standard

    IEC 60947-4-1

    Auxiliary contact

    Number of NC contacts

    1

    Switching voltage

    24 VDC

    Min. nominal current

    1 A

    Min. short circuit current

    1 kA

    Manufacturer/type

    Finder 22.64.0.024.4710

    K3 - Modular relay

    Number of changeover contacts

    2

    Coil voltage

    12 VDC

    Test standard

    IEC 60947-4-1

    Manufacturer/type

    Finder 22.23.9.012.4000 / Schrack relay RT424012 (bracket RT17017, relay base RT78725)

    K4 and K5 - Installation contactor

    Number of NC contacts

    2 (25 A)

    Coil voltage

    230 V AC (2P)

    Rated frequency

    50/60 Hz

    Coil fuse

    6 A

    Min. short circuit current

    3 kA (contacts)

    Test standard

    IEC 60947-4-1

    Manufacturer/type

    ISKRA IKA225-02

    1. Appendix
    2. Components for switching to backup power

    Components for automatic backup power changeover to Full Backup

    Fronius components
    With the following Fronius components, no additional components are required for the automatic changeover to backup power. If components are not available depending on national availability, automatic changeover to backup power can be implemented with the following third-party components.

     Product

    Item number

    Fronius Backup Controller 3P-35A

    4,240,047,CK

    Fronius Smart Meter 63A-3

    43,0001,1473

    Fronius Smart Meter 50kA-3

    43,0001,1478

    Fronius Smart Meter TS 65A-3

    43,0001,0044

    Fronius Smart Meter TS 5kA-3

    43,0001,0046

    Fronius Smart Meter WR

    43,0001,3591

    Third-party components
    Manufacturers/types other than the product examples listed are permissible, provided that they meet the same technical and functional requirements.

    Grid and system protection

    Manufacturer/type

    Bender GmbH & Co. KG VMD460-NA-D-2
    Tele Haase Steuergeräte Ges.m.b.H. RE-NA003-M64

    K1 and K2 - AC installation contactor with auxiliary contact

    Number of pins

    3-pin or 4-pin
    (depending on the cabling variant)

    Rated current

    depending on the house connection

    Coil voltage

    230 VAC

    Rated frequency

    50/60 Hz

    Coil fuse

    6 A

    Min. short circuit current

    3 kA (contacts)

    Test standard

    IEC 60947-4-1

    Auxiliary contact

    Number of NC contacts

    1

    Switching voltage

    12 - 230 V @ 50 / 60 Hz

    Min. nominal current

    1 A

    Min. short circuit current

    1 kA

    Manufacturer/type

    ISKRA IK63-40 / Schrack BZ326461

    Buffer power supply - Fault Ride Through cabling variant

    Manufacturer/type

    BKE JS-20-240/DIN_BUF

    K1 and K2 - DC installation contactor with auxiliary contact (Fault Ride Through)

    Number of pins

    3-pin or 4-pin
    (depending on the cabling variant)

    Rated current

    depending on the house connection

    Coil voltage

    24 VDC

    Min. short circuit current

    3 kA (contacts)

    Test standard

    IEC 60947-4-1

    Auxiliary contact

    Number of NC contacts

    1

    Switching voltage

    24 VDC

    Min. nominal current

    1 A

    Min. short circuit current

    1 kA

    Manufacturer/type

    Finder 22.64.0.024.4710

    K3 - Modular relay

    Number of changeover contacts

    2

    Coil voltage

    12 VDC

    Test standard

    IEC 60947-4-1

    Manufacturer/type

    Finder 22.23.9.012.4000 / Schrack relay RT424012 (bracket RT17017, relay base RT78725)

    K4 and K5 - Installation contactor

    Number of NC contacts

    2 (25 A)

    Coil voltage

    230 V AC (2P)

    Rated frequency

    50/60 Hz

    Coil fuse

    6 A

    Min. short circuit current

    3 kA (contacts)

    Test standard

    IEC 60947-4-1

    Manufacturer/type

    ISKRA IKA225-02

    1. Appendix
    2. Components for switching to backup power

    Components for manual backup power changeover to Full Backup

    Product

    Item number

    Fronius Smart Meter 63A-3

    43,0001,1473

    Fronius Smart Meter TS 65A-3

    43,0001,0044

    Fronius Backup Switch 1P/3P-63A

    4,050,221

    Fronius Backup Switch 1PN/3PN-63A

    4,050,220

    1. Appendix

    Status codes and remedy

    Display

    Status codes are displayed on the user interface of the inverter in the System > Event Log menu area or in the user menu under Notifications and in Fronius Solar.web*.

    *
    If configured accordingly, see chapter Fronius Solar.web on page (→).
    1. Appendix
    2. Status codes and remedy

    Display

    Status codes are displayed on the user interface of the inverter in the System > Event Log menu area or in the user menu under Notifications and in Fronius Solar.web*.

    *
    If configured accordingly, see chapter Fronius Solar.web on page (→).
    1. Appendix
    2. Status codes and remedy

    Status codes

    1030 – WSD Open (operating LED: flashes red)
    Cause:A device that is connected in the WSD chain has interrupted the signal line (e.g., surge protection device) or the bypass installed ex works as standard has been removed and no trigger device has been installed.
    Remedy:If the SPD surge protection device has tripped, the inverter must be repaired by an authorized specialist.
    OR:Install the bypass installed ex works as standard or a trigger device.
    OR:Turn the WSD (wired shutdown) switch to position 1 (WSD master).

    WARNING!

    Danger from work that is not carried out properly.

    This can result in severe personal injury and damage to property.

    The installation and connection of an SPD surge protection device may only be carried out by Fronius-trained service personnel in accordance with the technical specifications.

    Observe safety rules.

    1. Appendix

    Technical data

    Fronius Symo GEN24 6.0 / 6.0 Plus

    DC input data

    MPP voltage range
    (at rated power)

    174 - 800 V

    Max. connected load (PPV max)
    Total
    PV 1
    PV 2


    9000 Wp
    7500 Wp
    6500 Wp

    Max. processable PV power
    Total
    PV 1
    PV 2


    6220 Wp
    6220 Wp
    6000 Wp

    Max. input voltage
    at 1000 W/m²/-10 °C in an open circuit

    1000 V

    Feed-in start-up input voltage in grid operation 5)

    80 V

    Max. input current
    PV 1
    PV 2


    25.0 A
    12.5 A

    Max. short circuit current for module array (ISC PV)
    PV 1
    PV 2



    40 A
    20 A

    Max. total short circuit current for module array
    (ISC PV1 + ISC PV2 = ISC max)



    60 A

    Max. inverter backfeed current to the array 3)
    PV 1
    PV 2



    40 A
    20 A

    Number of inputs - PV 1

    2

    Number of inputs - PV 2

    1

    Max. capacity of the PV generator against earth

    1200 nF

    Limit value of the insulation resistance test between module array and ground (on delivery) 10)

    100 kΩ

    Adjustable range of insulation resistance test between module array and ground 9)

    10 - 10,000 kΩ

    Limit value and trip time of sudden residual fault current monitoring (on delivery)

    30 / 300 mA / ms
    60 / 150 mA / ms
    90 / 40 mA / ms

    Limit value and trip time of continuous residual fault current monitoring (on delivery)

    300 / 300 mA / ms

    Adjustable range of continuous residual current monitoring 9)

    30 - 300 mA

    Cyclic repetition of the insulation resistance test (on delivery)

    24 h

    Adjustable range for cyclic repetition of the insulation resistance test

    -

    DC input data battery 8)

    Max. voltage

    700 V

    Min. voltage

    160 V

    Max. current

    22 A

    Max. output

    6000 W

    DC inputs

    1

    AC input/output data

    Rated power (Pnom)

    6000 W

    Max. output power

    6000 W

    Rated apparent power

    6000 VA

    Nominal mains voltage

    3 ~ NPE 220 V / 380 V
    3 ~ NPE 230 V / 400 V

    Min. mains voltage

    154 V 1)

    Max. mains voltage

    280 V 1)

    Max. output current

    16.4 A

    Rated output current
    (at 230 V)

    8.7 A

    Current (inrush) 6)

    9.9 A / 4 ms

    Nominal frequency

    50 / 60 Hz 1)

    Initial symmetrical short-circuit current / phase IK"

    16.4 A

    Nominal frequency for Full Backup

    53 / 63 Hz 1)

    Total harmonic distortion

    < 3.5%

    Power factor cos phi 2)

    0 - 1 (adjustable)
    0.7 - 1 (recommended)

    Max. permitted grid impedance Zmax on PCC 4)

    None

    Max. output fault current / duration

    80.7 A / 10 ms

    AC output data PV Point / PV Point Comfort

    Max. output power

    4133 W (for 5 s)

    Rated power

    3000 W

    Rated output current

    13 A

    Nominal mains voltage

    1 ~ NPE 220 V / 230 V / 240 V

    Nominal frequency

    53 / 63 Hz 1)

    Switching time

    ~ 15 s

    Power factor cos phi 2)

    0 - 1

    AC output data Full Backup 8)

    Max. output power

    12,400 W (for 5 s)

    Max. output power (per phase)

    4133 W (for 5 s)

    Rated power

    6000 W

    Rated power (per phase) 7)

    3680 W

    Rated output current
    (per phase)

    16 A

    Nominal mains voltage

    3 ~ NPE 220 V / 380 V
    3 ~ NPE 230 V / 400 V

    Nominal frequency for Full Backup

    53 / 63 Hz 1)

    Switching time

    ~ 10 s

    Power factor cos phi 2)

    0 - 1

    General data

    Max. efficiency

    98.2 %

    Europ. efficiency (Umpp nom)

    97.7 %

    Europ. efficiency (Umpp max)

    97.3 %

    Europ. efficiency (Umpp min)

    96.5 %

    Self-consumption at night

    ≤ 10 W

    Cooling

    Controlled forced-air ventilation

    Protection class

    IP 66

    Dimensions H × W × D

    595 × 529 × 180 mm

    Weight

    23.4 kg

    Inverter topology

    Non-insulated, no transformer

    Permitted ambient temperature

    -25 °C - +60 °C

    Permissible humidity

    0 - 100% (incl. condensation)

    EMC emission class
    (in accordance with IEC 61000‑6‑2, IEC 61000‑6‑3)

    B

    DC / AC overvoltage category
    (in accordance with IEC 62109-1)

    2 / 3

    Pollution degree

    2

    Sound pressure level

    47 dB(A) (ref. 20µPA)

    Safety class (according to IEC 62103)

    1

    Protection devices

    DC isolation measurement

    Warning/shutdown at RISO < 100 kOHM

    Overload performance

    Operating point shift, power limitation

    DC disconnector

    Integrated

    RCMU

    Integrated

    RCMU classification

    The software class of the safety platform(s) is defined as a class B control function (single-channel with periodic self-test) in accordance with IEC 60730 Annex H.

    Active anti-islanding method

    Frequency shift method

    Data communication

    WLAN SMA-RP connection
    (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01)

    802.11b/g/n (WPA, WPA2)
    Frequency: 2.4 GHz

    Ethernet (LAN)

    RJ 45, 10/100 Mbit

    Wired shutdown (WSD)

    Max. 28 devices/WSD chain
    Max. distance between two devices = 100 m

    Modbus RTU SunSpec (2x)

    RS485 2-wire

    Voltage level of digital inputs

    low: min. 0 V - max. 1.8 V
    high: min. 4.5 V - max. 28.8 V

    Input currents of digital inputs

    Depending on the input voltage;
    Input resistance = 70 kOhm

    Total power for digital output (with internal supply)

    6 W at 12 V (USB not connected)

    Power per digital output
    (with external supply)

    1 A at >12.5 V - 24 V
    (max. 3 A in total)

    Datalogger/web server

    Integrated

    1. Appendix
    2. Technical data

    Fronius Symo GEN24 6.0 / 6.0 Plus

    DC input data

    MPP voltage range
    (at rated power)

    174 - 800 V

    Max. connected load (PPV max)
    Total
    PV 1
    PV 2


    9000 Wp
    7500 Wp
    6500 Wp

    Max. processable PV power
    Total
    PV 1
    PV 2


    6220 Wp
    6220 Wp
    6000 Wp

    Max. input voltage
    at 1000 W/m²/-10 °C in an open circuit

    1000 V

    Feed-in start-up input voltage in grid operation 5)

    80 V

    Max. input current
    PV 1
    PV 2


    25.0 A
    12.5 A

    Max. short circuit current for module array (ISC PV)
    PV 1
    PV 2



    40 A
    20 A

    Max. total short circuit current for module array
    (ISC PV1 + ISC PV2 = ISC max)



    60 A

    Max. inverter backfeed current to the array 3)
    PV 1
    PV 2



    40 A
    20 A

    Number of inputs - PV 1

    2

    Number of inputs - PV 2

    1

    Max. capacity of the PV generator against earth

    1200 nF

    Limit value of the insulation resistance test between module array and ground (on delivery) 10)

    100 kΩ

    Adjustable range of insulation resistance test between module array and ground 9)

    10 - 10,000 kΩ

    Limit value and trip time of sudden residual fault current monitoring (on delivery)

    30 / 300 mA / ms
    60 / 150 mA / ms
    90 / 40 mA / ms

    Limit value and trip time of continuous residual fault current monitoring (on delivery)

    300 / 300 mA / ms

    Adjustable range of continuous residual current monitoring 9)

    30 - 300 mA

    Cyclic repetition of the insulation resistance test (on delivery)

    24 h

    Adjustable range for cyclic repetition of the insulation resistance test

    -

    DC input data battery 8)

    Max. voltage

    700 V

    Min. voltage

    160 V

    Max. current

    22 A

    Max. output

    6000 W

    DC inputs

    1

    AC input/output data

    Rated power (Pnom)

    6000 W

    Max. output power

    6000 W

    Rated apparent power

    6000 VA

    Nominal mains voltage

    3 ~ NPE 220 V / 380 V
    3 ~ NPE 230 V / 400 V

    Min. mains voltage

    154 V 1)

    Max. mains voltage

    280 V 1)

    Max. output current

    16.4 A

    Rated output current
    (at 230 V)

    8.7 A

    Current (inrush) 6)

    9.9 A / 4 ms

    Nominal frequency

    50 / 60 Hz 1)

    Initial symmetrical short-circuit current / phase IK"

    16.4 A

    Nominal frequency for Full Backup

    53 / 63 Hz 1)

    Total harmonic distortion

    < 3.5%

    Power factor cos phi 2)

    0 - 1 (adjustable)
    0.7 - 1 (recommended)

    Max. permitted grid impedance Zmax on PCC 4)

    None

    Max. output fault current / duration

    80.7 A / 10 ms

    AC output data PV Point / PV Point Comfort

    Max. output power

    4133 W (for 5 s)

    Rated power

    3000 W

    Rated output current

    13 A

    Nominal mains voltage

    1 ~ NPE 220 V / 230 V / 240 V

    Nominal frequency

    53 / 63 Hz 1)

    Switching time

    ~ 15 s

    Power factor cos phi 2)

    0 - 1

    AC output data Full Backup 8)

    Max. output power

    12,400 W (for 5 s)

    Max. output power (per phase)

    4133 W (for 5 s)

    Rated power

    6000 W

    Rated power (per phase) 7)

    3680 W

    Rated output current
    (per phase)

    16 A

    Nominal mains voltage

    3 ~ NPE 220 V / 380 V
    3 ~ NPE 230 V / 400 V

    Nominal frequency for Full Backup

    53 / 63 Hz 1)

    Switching time

    ~ 10 s

    Power factor cos phi 2)

    0 - 1

    General data

    Max. efficiency

    98.2 %

    Europ. efficiency (Umpp nom)

    97.7 %

    Europ. efficiency (Umpp max)

    97.3 %

    Europ. efficiency (Umpp min)

    96.5 %

    Self-consumption at night

    ≤ 10 W

    Cooling

    Controlled forced-air ventilation

    Protection class

    IP 66

    Dimensions H × W × D

    595 × 529 × 180 mm

    Weight

    23.4 kg

    Inverter topology

    Non-insulated, no transformer

    Permitted ambient temperature

    -25 °C - +60 °C

    Permissible humidity

    0 - 100% (incl. condensation)

    EMC emission class
    (in accordance with IEC 61000‑6‑2, IEC 61000‑6‑3)

    B

    DC / AC overvoltage category
    (in accordance with IEC 62109-1)

    2 / 3

    Pollution degree

    2

    Sound pressure level

    47 dB(A) (ref. 20µPA)

    Safety class (according to IEC 62103)

    1

    Protection devices

    DC isolation measurement

    Warning/shutdown at RISO < 100 kOHM

    Overload performance

    Operating point shift, power limitation

    DC disconnector

    Integrated

    RCMU

    Integrated

    RCMU classification

    The software class of the safety platform(s) is defined as a class B control function (single-channel with periodic self-test) in accordance with IEC 60730 Annex H.

    Active anti-islanding method

    Frequency shift method

    Data communication

    WLAN SMA-RP connection
    (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01)

    802.11b/g/n (WPA, WPA2)
    Frequency: 2.4 GHz

    Ethernet (LAN)

    RJ 45, 10/100 Mbit

    Wired shutdown (WSD)

    Max. 28 devices/WSD chain
    Max. distance between two devices = 100 m

    Modbus RTU SunSpec (2x)

    RS485 2-wire

    Voltage level of digital inputs

    low: min. 0 V - max. 1.8 V
    high: min. 4.5 V - max. 28.8 V

    Input currents of digital inputs

    Depending on the input voltage;
    Input resistance = 70 kOhm

    Total power for digital output (with internal supply)

    6 W at 12 V (USB not connected)

    Power per digital output
    (with external supply)

    1 A at >12.5 V - 24 V
    (max. 3 A in total)

    Datalogger/web server

    Integrated

    1. Appendix
    2. Technical data

    Fronius Symo GEN24 8.0 / 8.0 Plus

    DC input data

    MPP voltage range
    (at rated power)

    224 - 800 V

    Max. connected load (PPV max)
    Total
    PV 1
    PV 2


    12,000 Wp
    10,000 Wp
    7000 Wp

    Max. processable PV power
    Total
    PV 1
    PV 2


    8260 Wp
    8260 Wp
    6000 Wp

    Max. input voltage
    at 1000 W/m²/-10 °C in an open circuit

    1000 V

    Feed-in start-up input voltage in grid operation 5)

    80 V

    Max. input current
    PV 1
    PV 2


    25.0 A
    12.5 A

    Max. short circuit current for module array (ISC PV)
    PV 1
    PV 2



    40 A
    20 A

    Max. total short circuit current for module array
    (ISC PV1 + ISC PV2 = ISC max)



    60 A

    Max. inverter backfeed current to the array 3)
    PV 1
    PV 2



    40 A
    20 A

    Number of inputs - PV 1

    2

    Number of inputs - PV 2

    1

    Max. capacity of the PV generator against earth

    1600 nF

    Limit value of the insulation resistance test between module array and ground (on delivery) 10)

    100 kΩ

    Adjustable range of insulation resistance test between module array and ground 9)

    10 - 10,000 kΩ

    Limit value and trip time of sudden residual fault current monitoring (on delivery)

    30 / 300 mA / ms
    60 / 150 mA / ms
    90 / 40 mA / ms

    Limit value and trip time of continuous residual fault current monitoring (on delivery)

    300 / 300 mA / ms

    Adjustable range of continuous residual current monitoring 9)

    30 - 300 mA

    Cyclic repetition of the insulation resistance test (on delivery)

    24 h

    Adjustable range for cyclic repetition of the insulation resistance test

    -

    DC input data battery 8)

    Max. voltage

    700 V

    Min. voltage

    160 V

    Max. current

    22 A

    Max. output

    8000 W

    DC inputs

    1

    AC input/output data

    Rated power (Pnom)

    8000 W

    Max. output power

    8000 W

    Rated apparent power

    8000 VA

    Nominal mains voltage

    3 ~ NPE 220 V / 380 V
    3 ~ NPE 230 V / 400 V

    Min. mains voltage

    154 V 1)

    Max. mains voltage

    280 V 1)

    Max. output current

    16.4 A

    Rated output current
    (at 230 V)

    11.6 A

    Current (inrush) 6)

    9.9 A / 4 ms

    Nominal frequency

    50 / 60 Hz 1)

    Initial symmetrical short-circuit current / phase IK"

    16.4 A

    Nominal frequency for Full Backup

    53 / 63 Hz 1)

    Total harmonic distortion

    < 3.5%

    Power factor cos phi 2)

    0 - 1 (adjustable)
    0.7 - 1 (recommended)

    Max. permitted grid impedance Zmax on PCC 4)

    None

    Max. output fault current / duration

    80.7 A / 10 ms

    AC output data PV Point / PV Point Comfort

    Max. output power

    4133 W (for 5 s)

    Rated power

    3000 W

    Rated output current

    13 A

    Nominal mains voltage

    1 ~ NPE 220 V / 230 V / 240 V

    Nominal frequency

    53 / 63 Hz 1)

    Switching time

    ~ 15 s

    Power factor cos phi 2)

    0 - 1

    AC output data Full Backup 8)

    Max. output power

    12,400 W (for 5 s)

    Max. output power (per phase)

    4133 W (for 5 s)

    Rated power

    8000 W

    Rated power (per phase) 7)

    3680 W

    Rated output current
    (per phase)

    16 A

    Nominal mains voltage

    3 ~ NPE 220 V / 380 V
    3 ~ NPE 230 V / 400 V

    Nominal frequency for Full Backup

    53 / 63 Hz 1)

    Switching time

    ~ 10 s

    Power factor cos phi 2)

    0 - 1

    General data

    Max. efficiency

    98.2 %

    Europ. efficiency (Umpp nom)

    97.8 %

    Europ. efficiency (Umpp max)

    97.5 %

    Europ. efficiency (Umpp min)

    96.9 %

    Self-consumption at night

    ≤ 10 W

    Cooling

    Controlled forced-air ventilation

    Protection class

    IP 66

    Dimensions H × W × D

    595 × 529 × 180 mm

    Weight

    23.4 kg

    Inverter topology

    Non-insulated, no transformer

    Permitted ambient temperature

    -25 °C - +60 °C

    Permissible humidity

    0 - 100% (incl. condensation)

    EMC emission class
    (in accordance with IEC 61000‑6‑2, IEC 61000‑6‑3)

    B

    DC / AC overvoltage category
    (in accordance with IEC 62109-1)

    2 / 3

    Pollution degree

    2

    Sound pressure level

    47 dB(A) (ref. 20µPA)

    Safety class (according to IEC 62103)

    1

    Protection devices

    DC isolation measurement

    Warning/shutdown at RISO < 100 kOHM

    Overload performance

    Operating point shift, power limitation

    DC disconnector

    Integrated

    RCMU

    Integrated

    RCMU classification

    The software class of the safety platform(s) is defined as a class B control function (single-channel with periodic self-test) in accordance with IEC 60730 Annex H.

    Active anti-islanding method

    Frequency shift method

    Data communication

    WLAN SMA-RP connection
    (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01)

    802.11b/g/n (WPA, WPA2)
    Frequency: 2.4 GHz

    Ethernet (LAN)

    RJ 45, 10/100 Mbit

    Wired shutdown (WSD)

    Max. 28 devices/WSD chain
    Max. distance between two devices = 100 m

    Modbus RTU SunSpec (2x)

    RS485 2-wire

    Voltage level of digital inputs

    low: min. 0 V - max. 1.8 V
    high: min. 4.5 V - max. 28.8 V

    Input currents of digital inputs

    Depending on the input voltage;
    Input resistance = 70 kOhm

    Total power for digital output (with internal supply)

    6 W at 12 V (USB not connected)

    Power per digital output
    (with external supply)

    1 A at >12.5 V - 24 V
    (max. 3 A in total)

    Datalogger/web server

    Integrated

    1. Appendix
    2. Technical data

    Fronius Symo GEN24 10.0 / 10.0 Plus

    DC input data

    MPP voltage range
    (at rated power)

    278 - 800 V

    Max. connected load (PPV max)
    Total
    PV 1
    PV 2


    15,000 Wp
    12,500 Wp
    7500 Wp

    Max. processable PV power
    Total
    PV 1
    PV 2


    10,300 Wp
    10,300 Wp
    6000 Wp

    Max. input voltage
    at 1000 W/m²/-10 °C in an open circuit

    1000 V

    Feed-in start-up input voltage in grid operation 5)

    80 V

    Max. input current
    PV 1
    PV 2


    25.0 A
    12.5 A

    Max. short circuit current for module array (ISC PV)
    PV 1
    PV 2



    40 A
    20 A

    Max. total short circuit current for module array
    (ISC PV1 + ISC PV2 = ISC max)



    60 A

    Max. inverter backfeed current to the array 3)
    PV 1
    PV 2



    40 A
    20 A

    Number of inputs - PV 1

    2

    Number of inputs - PV 2

    1

    Max. capacity of the PV generator against earth

    2000 nF

    Limit value of the insulation resistance test between module array and ground (on delivery) 10)

    100 kΩ

    Adjustable range of insulation resistance test between module array and ground 9)

    10 - 10,000 kΩ

    Limit value and trip time of sudden residual fault current monitoring (on delivery)

    30 / 300 mA / ms
    60 / 150 mA / ms
    90 / 40 mA / ms

    Limit value and trip time of continuous residual fault current monitoring (on delivery)

    300 / 300 mA / ms

    Adjustable range of continuous residual current monitoring 9)

    30 - 300 mA

    Cyclic repetition of the insulation resistance test (on delivery)

    24 h

    Adjustable range for cyclic repetition of the insulation resistance test

    -

    DC input data battery 8)

    Max. voltage

    700 V

    Min. voltage

    160 V

    Max. current

    22 A

    Max. output

    10,000 W

    DC inputs

    1

    AC input/output data

    Rated power (Pnom)

    10,000 W

    Max. output power

    10,000 W

    Rated apparent power

    10,000 VA

    Nominal mains voltage

    3 ~ NPE 220 V / 380 V
    3 ~ NPE 230 V / 400 V

    Min. mains voltage

    154 V 1)

    Max. mains voltage

    280 V 1)

    Max. output current

    16.4 A

    Rated output current
    (at 230 V)

    14.5 A

    Current (inrush) 6)

    9.9 A / 4 ms

    Nominal frequency

    50 / 60 Hz 1)

    Initial symmetrical short-circuit current / phase IK"

    16.4 A

    Nominal frequency for Full Backup

    53 / 63 Hz 1)

    Total harmonic distortion

    < 3.5%

    Power factor cos phi 2)

    0 - 1 (adjustable)
    0.7 - 1 (recommended)

    Max. permitted grid impedance Zmax on PCC 4)

    None

    Max. output fault current / duration

    80.7 A / 10 ms

    AC output data PV Point / PV Point Comfort

    Max. output power

    4133 W (for 5 s)

    Rated power

    3000 W

    Rated output current

    13 A

    Nominal mains voltage

    1 ~ NPE 220 V / 230 V / 240 V

    Nominal frequency

    53 / 63 Hz 1)

    Switching time

    ~ 15 s

    Power factor cos phi 2)

    0 - 1

    AC output data Full Backup 8)

    Max. output power

    12,400 W (for 5 s)

    Max. output power (per phase)

    4133 W (for 5 s)

    Rated power

    10,000 W

    Rated power
    (per phase) 7)

    3680 W

    Rated output current
    (per phase)

    16 A

    Nominal mains voltage

    3 ~ NPE 220 V / 380 V
    3 ~ NPE 230 V / 400 V

    Nominal frequency for Full Backup

    53 / 63 Hz 1)

    Switching time

    ~ 10 s

    Power factor cos phi 2)

    0 - 1

    General data

    Max. efficiency

    98.2 %

    Europ. efficiency (Umpp nom)

    97.9 %

    Europ. efficiency (Umpp max)

    97.7 %

    Europ. efficiency (Umpp min)

    97.1 %

    Self-consumption at night

    ≤ 10 W

    Cooling

    Controlled forced-air ventilation

    Protection class

    IP 66

    Dimensions H × W × D

    595 × 529 × 180 mm

    Weight

    23.4 kg

    Inverter topology

    Non-insulated, no transformer

    Permitted ambient temperature

    -25 °C - +60 °C

    Permissible humidity

    0 - 100% (incl. condensation)

    EMC emission class
    (in accordance with IEC 61000‑6‑2, IEC 61000‑6‑3)

    B

    DC / AC overvoltage category
    (in accordance with IEC 62109-1)

    2 / 3

    Pollution degree

    2

    Sound pressure level

    47 dB(A) (ref. 20µPA)

    Safety class (according to IEC 62103)

    1

    Protection devices

    DC isolation measurement

    Warning/shutdown at RISO < 100 kOHM

    Overload performance

    Operating point shift, power limitation

    DC disconnector

    Integrated

    RCMU

    Integrated

    RCMU classification

    The software class of the safety platform(s) is defined as a class B control function (single-channel with periodic self-test) in accordance with IEC 60730 Annex H.

    Active anti-islanding method

    Frequency shift method

    Data communication

    WLAN SMA-RP connection
    (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01)

    802.11b/g/n (WPA, WPA2)
    Frequency: 2.4 GHz

    Ethernet (LAN)

    RJ 45, 10/100 Mbit

    Wired shutdown (WSD)

    Max. 28 devices/WSD chain
    Max. distance between two devices = 100 m

    Modbus RTU SunSpec (2x)

    RS485 2-wire

    Voltage level of digital inputs

    low: min. 0 V - max. 1.8 V
    high: min. 4.5 V - max. 28.8 V

    Input currents of digital inputs

    Depending on the input voltage;
    Input resistance = 70 kOhm

    Total power for digital output (with internal supply)

    6 W at 12 V (USB not connected)

    Power per digital output
    (with external supply)

    1 A at >12.5 V - 24 V
    (max. 3 A in total)

    Datalogger/web server

    Integrated

    1. Appendix
    2. Technical data

    Fronius Symo GEN24 10.0 / 10.0 Plus
    (only Australia)

    DC input data

    MPP voltage range
    (at rated power)

    278 - 800 V

    Max. connected load (PPV max)
    Total
    PV 1
    PV 2


    15,000 Wp
    12,500 Wp
    7500 Wp

    Max. processable PV power
    Total
    PV 1
    PV 2


    10,300 Wp
    10,300 Wp
    6000 Wp

    Max. input voltage
    at 1000 W/m²/-10 °C in an open circuit

    1000 V

    Feed-in start-up input voltage in grid operation 5)

    80 V

    Max. input current
    PV 1
    PV 2


    25.0 A
    12.5 A

    Max. short circuit current for module array (ISC PV)
    PV 1
    PV 2



    40 A
    20 A

    Max. total short circuit current for module array
    (ISC PV1 + ISC PV2 = ISC max)



    60 A

    Max. inverter backfeed current to the array 3)
    PV 1
    PV 2



    40 A
    20 A

    Number of inputs - PV 1

    2

    Number of inputs - PV 2

    1

    Max. capacity of the PV generator against earth

    2000 nF

    Limit value of the insulation resistance test between module array and ground (on delivery) 10)

    100 kΩ

    Adjustable range of insulation resistance test between module array and ground 9)

    10 - 10,000 kΩ

    Limit value and trip time of sudden residual fault current monitoring (on delivery)

    30 / 300 mA / ms
    60 / 150 mA / ms
    90 / 40 mA / ms

    Limit value and trip time of continuous residual fault current monitoring (on delivery)

    300 / 300 mA / ms

    Adjustable range of continuous residual current monitoring 9)

    30 - 300 mA

    Cyclic repetition of the insulation resistance test (on delivery)

    24 h

    Adjustable range for cyclic repetition of the insulation resistance test

    -

    DC input data battery 8)

    Max. voltage

    700 V

    Min. voltage

    160 V

    Max. current

    22 A

    Max. output

    10,000 W

    DC inputs

    1

    AC input/output data

    Rated power (Pnom)

    9999 W

    Max. output power

    9999 W

    Rated apparent power

    9999 VA

    Nominal mains voltage

    3 ~ NPE 220 V / 380 V
    3 ~ NPE 230 V / 400 V

    Min. mains voltage

    154 V 1)

    Max. mains voltage

    280 V 1)

    Max. output current

    16.4 A

    Rated output current
    (at 230 V)

    14.5 A

    Current (inrush) 6)

    9.9 A / 4 ms

    Nominal frequency

    50 / 60 Hz 1)

    Initial symmetrical short-circuit current / phase IK"

    16.4 A

    Nominal frequency for Full Backup

    53 / 63 Hz 1)

    Total harmonic distortion

    < 3.5%

    Power factor cos phi 2)

    0 - 1 (adjustable)
    0.7 - 1 (recommended)

    Max. permitted grid impedance Zmax on PCC 4)

    None

    Max. output fault current / duration

    80.7 A / 10 ms

    AC output data PV Point / PV Point Comfort

    Max. output power

    4133 W (for 5 s)

    Rated power

    3000 W

    Rated output current

    13 A

    Nominal mains voltage

    1 ~ NPE 220 V / 230 V / 240 V

    Nominal frequency

    53 / 63 Hz 1)

    Switching time

    ~ 15 s

    Power factor cos phi 2)

    0 - 1

    AC output data Full Backup 8)

    Max. output power

    12,400 W (for 5 s)

    Max. output power (per phase)

    4133 W (for 5 s)

    Rated power

    9999 W

    Rated power
    (per phase) 7)

    3680 W

    Rated output current
    (per phase)

    16 A

    Nominal mains voltage

    3 ~ NPE 220 V / 380 V
    3 ~ NPE 230 V / 400 V

    Nominal frequency for Full Backup

    53 / 63 Hz 1)

    Switching time

    ~ 10 s

    Power factor cos phi 2)

    0 - 1

    General data

    Max. efficiency

    98.2 %

    Europ. efficiency (Umpp nom)

    97.9 %

    Europ. efficiency (Umpp max)

    97.7 %

    Europ. efficiency (Umpp min)

    97.1 %

    Self-consumption at night

    ≤ 10 W

    Cooling

    Controlled forced-air ventilation

    Protection class

    IP 66

    Dimensions H × W × D

    595 × 529 × 180 mm

    Weight

    23.4 kg

    Inverter topology

    Non-insulated, no transformer

    Permitted ambient temperature

    -25 °C - +60 °C

    Permissible humidity

    0 - 100% (incl. condensation)

    EMC emission class
    (in accordance with IEC 61000‑6‑2, IEC 61000‑6‑3)

    B

    DC / AC overvoltage category
    (in accordance with IEC 62109-1)

    2 / 3

    Pollution degree

    2

    Sound pressure level

    47 dB(A) (ref. 20µPA)

    Safety class (according to IEC 62103)

    1

    Protection devices

    DC isolation measurement

    Warning/shutdown at RISO < 100 kOHM

    Overload performance

    Operating point shift, power limitation

    DC disconnector

    Integrated

    RCMU

    Integrated

    RCMU classification

    The software class of the safety platform(s) is defined as a class B control function (single-channel with periodic self-test) in accordance with IEC 60730 Annex H.

    Active anti-islanding method

    Frequency shift method

    Data communication

    WLAN SMA-RP connection
    (FCC ID: QKWPILOT01 / IC ID: 12270A-PILOT01)

    802.11b/g/n (WPA, WPA2)
    Frequency: 2.4 GHz

    Ethernet (LAN)

    RJ 45, 10/100 Mbit

    Wired shutdown (WSD)

    Max. 28 devices/WSD chain
    Max. distance between two devices = 100 m

    Modbus RTU SunSpec (2x)

    RS485 2-wire

    Voltage level of digital inputs

    low: min. 0 V - max. 1.8 V
    high: min. 4.5 V - max. 28.8 V

    Input currents of digital inputs

    Depending on the input voltage;
    Input resistance = 70 kOhm

    Total power for digital output (with internal supply)

    6 W at 12 V (USB not connected)

    Power per digital output
    (with external supply)

    1 A at >12.5 V - 24 V
    (max. 3 A in total)

    Datalogger/web server

    Integrated

    1. Appendix
    2. Technical data

    WLAN

    Frequency range

    2412 - 2462 MHz

    Channels / power used

    Channel: 1-11 b,g,n HT20
    Channel: 3-9 HT40
    <18 dBm

    Modulation

    802.11b: DSSS (1Mbps DBPSK, 2Mbps DQPSK, 5.5/11Mbps CCK)
    802.11g: OFDM (6/9Mbps BPSK, 12/18Mbps QPSK, 24/36Mbps 16-QAM, 48/54Mbps 64-QAM)
    802.11n: OFDM (6.5 BPSK, QPSK, 16-QAM, 64-QAM)

    1. Appendix
    2. Technical data

    Technical data of surge protection device DC SPD type 1+2 GEN24

    General data

    Continuous operating current (Icpv)

    < 0.1 mA

    Rated discharge current (In)
    - 15 x 8/20 µs pulses

    20 kA

    Lightning surge current (limp)
    Max. discharge capacity @ 10/350 µs

    6.25 kA

    Protection level (Up)
    (star-shaped mounting)

    4 kV

    Short circuit strength PV (Iscpv)

    15 kA

    Disconnector

    Thermal disconnector

    Integrated

    External fuse

    None

    Mechanical properties

    Disconnection indicator

    Mechanical indicator (red)

    Remote communication of the connection interruption

    Output on the changeover contact

    Housing material

    Thermoplastic UL-94-V0

    Test standards

    IEC 61643-31 / DIN EN 50539-11
    UL1449 ed.4 / VDE 0185-305-3 Bbl. 5

    1. Appendix
    2. Technical data

    Explanation of footnotes

    1)
    The values provided are standard values. If required, the inverter is customized for a specific country.
    2)
    Depending on the country setup or device-specific settings
    (ind. = inductive; cap. = capacitive).
    3)
    Maximum current from a defective PV module to all other PV modules. From the inverter itself to the PV side of the inverter, this is 0 A.
    4)
    Assured by the electrical design of the inverter.
    5)
    For backup power mode (PV Point) without a battery, a min. voltage of 150 V is required.
    6)
    Peak current when turning on the inverter.
    7)
    The total nominal output power per phase must not exceed the nominal output power of the inverter.
    8)
    Valid for Fronius inverter with battery support.
    9)
    The values provided are standard values. These values must be adjusted according to requirements and PV output.
    10)
    The value provided is a max. value. If this value is exceeded, this may impair the function.
    1. Appendix
    2. Technical data

    Integrated DC disconnector

    General data

    Product name

    Benedict LS32 E 7905

    Rated insulation voltage

    1000 VDC

    Rated impulse withstand voltage

    8 kV

    Suitability for insulation

    Yes, DC only

    Utilization category and/or PV utilization category

    according to IEC/EN 60947-3 utilization category DC-PV2

    Rated short-time withstand current (Icw)

    Rated short-time withstand current (Icw): 1000 A

    Rated short-circuit capacity (Icm)

    Rated short-circuit capacity (Icm): 1000 A

    Rated operating current and rated breaking capacity

    Rated operating voltage (Ue)

    Rated operating current (Ie)

    I(make) / I(break)

    Rated operating current (Ie)

    I(make) / I(break)

    ≤ 500 VDC

    14 A

    56 A

    36 A

    144 A

    600 VDC

    8 A

    32 A

    30 A

    120 A

    700 VDC

    3 A

    12 A

    26 A

    88 A

    800 VDC

    3 A

    12 A

    17 A

    68 A

    900 VDC

    2 A

    8 A

    12 A

    48 A

    1000 VDC

    2 A

    8 A

    6 A

    24 A

    Number of pins

    1

    1

    2

    2

    1. Appendix
    2. Technical data

    Integrated DC disconnector

    General data

    Product name

    Benedict LSA32 E 8229

    Rated insulation voltage

    1000 VDC

    Rated impulse withstand voltage

    6 kV

    Suitability for insulation

    Yes, DC only

    Utilization category and/or PV utilization category

    according to IEC/EN 60947-3 utilization category DC-PV2

    Rated short-time withstand current (Icw)

    Rated short-time withstand current (Icw): 1000 A

    Rated short-circuit capacity (Icm)

    Rated short-circuit capacity (Icm): 1000 A

    Rated operating current and rated breaking capacity

    Rated operating voltage (Ue)

    Rated operating current (Ie)

    I(make) / I(break)

    Rated operating current (Ie)

    I(make) / I(break)

    300 VDC

    27 A

    108 A

    47 A

    188 A

    400 VDC

    20 A

    80 A

    45 A

    180 A

    500 VDC

    14 A

    56 A

    38 A

    152 A

    600 VDC

    11.5 A

    46 A

    33 A

    132 A

    700 VDC

    7.5 A

    30 A

    28 A

    112 A

    800 VDC

    5.75 A

    23 A

    23 A

    92 A

    900 VDC

    4.75 A

    19 A

    20 A

    80 A

    1 000 VDC

    4 A

    16 A

    13 A

    52 A

    Number of pins

    1

    1

    2

    2

    Circuit Diagrams

    Appendix: Fronius Symo GEN24 and Fronius Reserva

    1. Circuit Diagrams

    Appendix: Fronius Symo GEN24 and Fronius Reserva

    1. Circuit Diagrams

    Appendix: Fronius Symo GEN24 with Fronius Reserva connected in parallel

    1. Circuit Diagrams

    Appendix: Fronius Symo GEN24 and BYD Battery-Box Premium HV

    1. Circuit Diagrams

    Appendix: Fronius Symo GEN24 with two BYD Battery-Box Premium HV connected in parallel

    1. Circuit Diagrams

    Appendix: Fronius Symo GEN24 with three BYD Battery-Box Premium HV connected in parallel

    1. Circuit Diagrams

    Appendix: Fronius Symo GEN24 and LG FLEX

    1. Circuit Diagrams

    Appendix: Emergency power terminal—PV Point (OP)

    1. Circuit Diagrams

    Appendix: Circuit diagram - PV Point (OP) Australia

    1. Circuit Diagrams

    Appendix: Backup power terminal - PV Point (OP) with battery only for France

    1. Circuit Diagrams

    Appendix: Backup power terminal - PV Point (OP) manual changeover

    1. Circuit Diagrams

    Appendix: PV Point Comfort

    1. Circuit Diagrams

    Appendix: Automatic switch to backup power 3-pin single FRT-capable separation - e.g., Austria

    1. Circuit Diagrams

    Appendix: Automatic switch to backup power 3-pin single separation - e.g., Australia

    1. Circuit Diagrams

    Appendix: Automatic switch to backup power 3-pin double separation with ext. grid and system protection

    1. Circuit Diagrams

    Appendix: Automatic switch to backup power 4-pin single separation - e.g., Germany

    1. Circuit Diagrams

    Appendix: Automatic switch to backup power 4-pin single FRT-capable separation

    1. Circuit Diagrams

    Appendix: Automatic switch to backup power 4-pin single separation - e.g., France

    1. Circuit Diagrams

    Appendix: Automatic switch to backup power 4-pin single separation - e.g., Spain

    1. Circuit Diagrams

    Appendix: Automatic switch to backup power 4-pin double separation with ext. grid and system protection - e.g., Italy

    1. Circuit Diagrams

    Appendix: Manual switch to backup power 3-pin separation, e.g., Austria

    1. Circuit Diagrams

    Appendix: Manual switch to backup power 4-pin separation, e.g., Germany

    1. Circuit Diagrams

    Appendix: Surge protection device (SPD)

    Dimensions of the inverter

    Appendix: Fronius Symo GEN24 6-10 kW

    1. Dimensions of the inverter

    Appendix: Fronius Symo GEN24 6-10 kW