LogoFronius Symo GEN24 6 - 10 kW Plus
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    • Contact
    • Imprint
    • General Terms and Conditions
    • Data protection
    • 017-02082022
    • Safety rules
      • Explanation of safety notices
      • Safety
      • General
      • Environmental conditions
      • Qualified personnel
      • Noise emission values
      • EMC measures
      • Backup power
      • Data protection
      • Copyright
      • Protective earthing (PE)
    • General information
      • Fronius Symo GEN24
        • Device concept
        • Function overview
        • Fronius UP
        • Scope of supply
        • Intended use
        • Thermal concept
        • Fronius Solar.web
      • The various 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 additional inverter
        • Operating mode – Inverter with battery, further inverter and backup power function
        • Energy flow direction of the inverter
        • Operating states (only for systems with a battery)
      • Energy saving mode
        • General
        • Switch-off conditions
        • Switch-on conditions
        • Special case
        • Indication of energy saving mode
      • Suitable batteries
        • General
        • BYD Battery-Box Premium
      • Manual system start
        • Requirements
        • Notification of system shutdown
        • Manual battery start after system shutdown
        • Starting backup power operation after a system shutdown
      • Protection of people and equipment
        • Central grid and system protection
        • WSD (wired shutdown)
        • RCMU
        • Surge protective device
      • Control elements and connections
        • Connection area
        • Connection area divider
        • Ground electrode terminal
        • DC disconnector
        • Data communication area
        • Internal schematic connection diagram of the IOs
    • Backup power variant - PV Point (OP)
      • General
        • PV Point (OP)
        • Explanation - PV Point (OP)
    • Backup power variant - Full Backup
      • General
        • Prerequisites for backup power mode
        • Transitioning from feeding energy into the grid to backup power mode
        • Transitioning from backup power mode to feeding energy into the grid
        • Backup power and energy saving mode
      • Cabling variants including emergency power circuits and 3-pin separation e.g. Austria or Australia
        • Functions
        • Transitioning from feeding energy into the grid to backup power mode
        • Transitioning from backup power mode to feeding energy into the grid
      • All-pin separation cabling variant, e.g. Germany, France
        • Functions
        • Transitioning from feeding energy into the grid to backup power mode
        • Transitioning from backup power mode to feeding energy into the grid
      • All-pin split separation cabling variant (Italy)
        • Functions
        • Transitioning from feeding energy into the grid to backup power mode
        • Transitioning from backup power mode to feeding energy into the grid
    • Installation
      • General
        • Quick-lock system
        • Warning notices on the device
        • System component compatibility
      • Installation location and position
        • Choosing the location of the inverter
        • Choosing the location of third-party batteries
        • Explanation of symbols for the installation position
      • Install the mounting bracket and hang up the inverter
        • Selecting the fixing 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
      • Prerequisites for connecting the inverter
        • Permitted cables
        • Permitted cables for the data communication area
        • Cross section of the AC cable
        • Cross section 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 information
        • PV generator configuration
          6 - 10 kW
        • Connecting the solar module strings to the inverter
      • Connecting the battery to the inverter
        • Safety
        • Connecting the battery on the DC side
      • Connecting backup power - PV Point (OP)
        • Safety
        • Installation
      • Connecting backup power - Full Backup
        • Safety
        • Cabling variants including backup power circuits with 3-pin separation e.g. Austria or Australia
        • Al-pin separation cabling variant e.g. Germany, France, Spain
        • All-pin separation cabling variant, e.g. Italy
        • Testing backup power mode
      • Connecting the data communication cable
        • Modbus participants
        • Routing data communication cables
        • Connecting the battery communication cables
        • 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
        • Button functions and LED status indicator
        • Installation with the app
        • Installation using the web browser
      • Switching off current supply and restarting the inverter
        • De-energising the inverter and switching it on again
    • Settings - user interface of the inverter
      • User settings
        • User login
        • Selecting the language
      • Device configuration
        • Components
        • Functions and
          I/Os
        • Demand Response Modes (DRM)
        • Inverter
      • Energy management
        • Energy management
        • Examples - Time-dependent battery control
        • Allowed battery control rules
        • PV power reduction
        • Load management
      • System
        • General
        • Update
        • Setup wizard
        • Restoring the factory settings
        • Event Log
        • Information
        • Licence manager
        • Support
      • Communication
        • Network
        • Modbus
        • Fronius Solar API
      • Safety and grid requirements
        • Country setup
        • Feed-in limitation
        • Dynamic power regulation with several inverters
        • I/O power management
        • Connection diagram - 4 relay
        • I/O power management settings - 4 relays
        • Connection diagram - 3 relay
        • I/O power management settings - 3 relays
        • Connection diagram - 2 relay
        • I/O power management settings - 2 relays
        • Connection diagram - 1 relay
        • I/O power management settings - 1 relay
        • Autotest
          (CEI 0-21)
    • Options
      • Surge protective device (SPD)
        • General
        • Scope of supply
        • De-energising the inverter
        • Installation
        • Commissioning the inverter
    • Appendix
      • Care, maintenance and disposal
        • General
        • Maintenance
        • Cleaning
        • Safety
        • Operation in dusty environments
        • Disposal
      • Guarantee provisions
        • Fronius manufacturer's warranty
      • Components for automatic Full Backup backup power changeover
        • Components for automatic Full Backup backup power changeover
      • 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
        • Technical data of surge protective device DC SPD type 1+2 GEN24
        • Explanation of footnotes
        • Integrated DC disconnector
    • Circuit diagrams
      • Circuit Diagram - PV Point (OP)
        • Circuit Diagram
      • Fronius Symo GEN24 and BYD Battery-Box Premium HV
        • Circuit Diagram
      • Fronius Symo GEN24 with two BYD Battery-Box Premium HV connected in parallel
        • Circuit Diagram
      • Fronius Symo GEN24 with three BYD Battery-Box Premium HV connected in parallel
        • Circuit Diagram
      • Automatic switch to backup power 3-pin double separation - e.g. Austria
        • Circuit Diagram
      • Automatic switch to backup power 3-pin single separation- e.g. Australia
        • Circuit Diagram
      • Automatic switch to backup power 3-pin double separation with ext. Grid and system protection
        • Circuit Diagram
      • Automatic switch to backup power 4-pin double separation - e.g. Germany
        • Circuit Diagram
      • Automatic switch to backup power 4-pin single separation- e.g. France, Spain
        • Circuit Diagram
      • Automatic switch to backup power 4-pin double separation with ext. grid and system protection - e.g. Italy
        • Circuit Diagram
      • Wiring diagram - surge protective device SPD
        • Circuit Diagram
    • Dimensions of the inverter
      • Fronius Symo GEN24 6 -10 kW
        • Fronius Symo GEN24 6 - 10 kW

    Fronius Symo GEN24 6 - 10 kW Plus

    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 to the DC side
    Routing data communication cables
    Installation using the App

    Safety rules

    Explanation of safety notices

    WARNING!

    Indicates a potentially hazardous situation.

    If not avoided, death or serious injury may result.

    CAUTION!

    Indicates a situation where damage could occur.

    If not avoided, minor injury and/or damage to property may result.

    NOTE!

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

    If you see any of the symbols depicted in the "Safety rules" chapter, special care is required.

    Explanation of safety notices

    WARNING!

    Indicates a potentially hazardous situation.

    If not avoided, death or serious injury may result.

    CAUTION!

    Indicates a situation where damage could occur.

    If not avoided, minor injury and/or damage to property may result.

    NOTE!

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

    If you see any of the symbols depicted in the "Safety rules" chapter, special care is required.

    Safety

    CAUTION!

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

    Injuries to limbs may result.

    When lifting up, putting down and attaching the inverter, use the integrated grips.

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

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

    General

    The device has been manufactured in line with the state of the art and according to recognised safety standards. In the event of incorrect operation or misuse, there is a risk of
    • Injury or death to the operator or a third party
    • 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 rules and 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, pasted, or painted over
    Only operate the device when all protection devices are fully functional. If the protection devices are not fully functional, there is a danger of
    • Injury or death to the operator or a third party
    • 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 protection devices.

    For the location of the safety and danger notices on the device, refer to the chapter headed "Warning notices on the device" in the Operating Instructions for your device.

    Faults that could compromise safety must be remedied before switching on the device.

    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.

    Qualified personnel

    The servicing information contained in these operating instructions is intended only for the use of qualified service engineers. 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 and leads must be secured, undamaged, insulated and adequately dimensioned. Loose connections, scorched, damaged or inadequately dimensioned cables and leads must be immediately repaired by authorised personnel.

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

    It is impossible to guarantee that bought-in parts are designed and manufactured to meet the demands made on them, or that they satisfy safety requirements. Use only original spare parts (also applies to standard parts).

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

    Components that are not in perfect condition must be changed immediately.

    Noise emission values

    The sound power level of the inverter is specified in the Technical data.

    The device is cooled as quietly as possible with the aid of an electronic temperature control system; this depends on the amount of converted power, the ambient temperature, the level of soiling 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 grid quality, the surrounding walls and the properties of the room in general.

    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 sensitive equipment 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, then the operator is obliged to take appropriate action to rectify the situation.

    Backup power

    This system has backup power functions. This enables a replacement power supply to be established in the event of a failure in 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.

    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 too high starting currents therefore cannot be started/operated, even though the nominal power of the inverter suggests that they can. When dimensioning of 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. The simultaneous operation of electronic devices in the same backup power supply system should be avoided.

    Load unbalance
    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.

    Data protection

    The user is responsible for the safekeeping of any changes made to the factory settings. The manufacturer accepts no liability for any deleted personal settings.

    Copyright

    Copyright of these operating instructions remains with the manufacturer.

    The text and illustrations are all technically correct at the time of printing. We reserve the right to make changes. The contents of the operating instructions shall not provide the basis for any claims whatsoever on the part of the purchaser. If you have any suggestions for improvement, or can point out any mistakes that you have found in the instructions, we will be most grateful for your comments.

    Protective earthing (PE)

    Connection of a point in the device, system or installation to earth to protect against electric shock in the event of a fault. When installing a safety class 1 inverter (see Technical data), the ground conductor connection is required.

    When connecting the ground conductor, ensure that it is secured against accidental disconnection. All the points listed in the chapter Connecting the inverter to the public grid (AC side) on page (→) must be observed. It must be ensured that when using the strain relief devices, the ground conductor is the last to be disconnected in the event of a possible failure. When connecting the ground conductor, the minimum cross-section requirements specified by the respective national standards and guidelines must be observed.

    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 (for example, 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 PV 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 PV modules is no longer sufficient, the power from the battery is fed into the home. 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, appropriate wiring, settings and local standards and guidelines.

    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 (for example, 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 PV 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 PV modules is no longer sufficient, the power from the battery is fed into the home. 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, appropriate wiring, settings and local standards and guidelines.

    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 (for example, 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 PV 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 PV modules is no longer sufficient, the power from the battery is fed into the home. 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, appropriate wiring, settings and local standards and guidelines.

    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).

    Fronius UP

    With Fronius UP*, the inverter can be expanded by the authorised specialist to include optionally available functions (see chapter Function overview).

    *
    The availability of Fronius UP varies from country to country. For more information on Fronius UP and availability, see Installation guide: Fronius GEN24 & GEN24 Plus.

    Scope of supply

    (1)
    Housing cover
    (2)
    Inverter
    (3)
    Mounting bracket (illustration)
    (4)
    Quick Start guide
    (5)
    2x ferrite ring with holder

    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 provided that appropriate cabling has been installed.

    The following are considered improper use:
    • Utilisation for any other purpose, or in any other manner
    • Alterations to the inverter are not permitted unless expressly recommended by Fronius
    • Installation of components is not permitted unless expressly recommended or sold by Fronius

    The manufacturer is not responsible for any damage resulting from improper use.
    All warranty claims are considered void in such cases.

    Intended use also means:
    • Carefully reading and obeying all the instructions, as well as safety and danger notices in the Operating Instructions
    • Installation in accordance with chapter "Installation" from page (→)

    When configuring the photovoltaic system, make sure that all components of the photovoltaic system are operating exclusively within their permissible operating range.

    Observe all measures recommended by the PV module manufacturer to permanently maintain the PV module properties.

    Observe the grid operator's regulations for energy fed into the grid and connection methods.

    The Fronius GEN24 inverter is a grid-connected inverter with a backup power function – it is not a stand-alone inverter. The following restrictions must therefore be observed in backup power mode:
    • Backup power mode may be in operation for at least 2000 hours
    • Backup power mode may be in operation for more than 2000 operating hours if 20% of the duration of the inverter's grid power feed operation is not exceeded at the relevant time.
    *
    Depending on the device variant, suitable battery, appropriate wiring, settings and local standards and guidelines.

    Thermal concept

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

    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 (for example, 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.

    Fronius Solar.web

    With Fronius Solar.web or Fronius Solar.web Premium, the PV system can be easily monitored and analysed by the system owner and installer. If configured accordingly, the inverter transmits data such as power, yields, load, and energy balance to Fronius Solar.web. For more information see Solar.web - monitoring & analysis.

    Configuration is carried out via the setup wizard, see chapter Installation with the app on page (→) or Installation using the web browser on page (→).

    Prerequisites for configuration:
    • Internet connection (download: min. 512 kBit/s, upload: min. 256 kBit/s)*.
    • User account on solarweb.com.
    • Completed configuration via the setup wizard.
    *
    The information given does not constitute an absolute guarantee of faultless function. High error rates in the transmission, reception fluctuations or transmission drop-outs can have a negative effect on the data transfer. Fronius recommends testing the Internet connection on site according to the minimum requirements.

    The various 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 is only possible with Fronius GEN24 Plus inverters). 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 system's load curve and provides measurement data for energy profiling in Fronius Solar.web. The primary meter also controls the dynamic feed-in control.

    Secondary meter
    records the load curve of individual loads (e.g. washing machine, lamps, TV, heat pump, etc.) in the consumption branch and provides measurement data for energy profiling in Fronius Solar.web.

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

    Additional loads and generators in the system
    are connected to the system by means of a utility meter.

    PV Point
    is a non-uninterruptible single-phase backup power circuit which supplies electrical devices with up to 3 kW if sufficient power is available from the PV modules or the battery.

    Full Backup
    the inverter is prepared for backup power mode. The backup power mode 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.

    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 is only possible with Fronius GEN24 Plus inverters). 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 system's load curve and provides measurement data for energy profiling in Fronius Solar.web. The primary meter also controls the dynamic feed-in control.

    Secondary meter
    records the load curve of individual loads (e.g. washing machine, lamps, TV, heat pump, etc.) in the consumption branch and provides measurement data for energy profiling in Fronius Solar.web.

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

    Additional loads and generators in the system
    are connected to the system by means of a utility meter.

    PV Point
    is a non-uninterruptible single-phase backup power circuit which supplies electrical devices with up to 3 kW if sufficient power is available from the PV modules or the battery.

    Full Backup
    the inverter is prepared for backup power mode. The backup power mode 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.

    Operating mode – Inverter with battery

    In order to be able to obtain the highest rate of self-consumption with your PV 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.

    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

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

    In the fully equipped hybrid PV system, 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

    Operating mode – Inverter with battery and Ohmpilot

    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.

    Operating mode – Inverter with battery and additional inverter

    In the hybrid photovoltaic system, batteries must only be connected to one inverter with battery support. Batteries cannot be split between multiple inverters with battery support. However, depending on the battery manufacturer, several batteries can be combined on one inverter.

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

    In the hybrid photovoltaic system, batteries must only be connected to one inverter with battery support. Batteries cannot be split between multiple inverters with battery support. However, depending on the battery manufacturer, several batteries can be combined on one inverter.

    Energy flow direction of the inverter

    In the case of hybrid inverters, there are four different energy flow directions:

     

    (1)
    PV module – inverter – load/grid
    (2)
    PV module – inverter – battery*
    (3)
    Battery – inverter – load/grid*
    (4)
    Grid – inverter – battery*

    * depending on the settings and local standards and regulations.

    Operating states (only for systems with a battery)

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

    Operating state

    Description

    Normal operation

    Energy is stored or drawn, as required.

    Min. state of charge (SOC) achieved

    Battery has reached the minimum SOC set or specified by the manufacturer. The battery cannot be discharged any 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 energy is available again.

    Start

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

    Forced re-charging

    The inverter re-charges the battery, in order to maintain the set minimum SOC (state of charge) or the SOC specified by the manufacturer (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.

    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.

    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.

    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.

    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.

    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.

    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 is 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.

    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

    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

    BYD Battery-Box Premium

    BYD Battery-Box Premium HVS

    5.1

    7.7

    10.2

    12.8

    Fronius Symo GEN24 6.0 - 10.0*

    Fronius Symo GEN24 6.0 - 10.0 Plus

    Number of battery modules

    2

    3

    4

    5

    Battery parallel operation**

    BYD Battery-Box Premium HVM

    8.3

    11.0

    13.8

    16.6

    19.3

    22.1

    Fronius Symo GEN24 6.0 - 10.0*

    Fronius Symo GEN24 6.0 - 10.0 Plus

    Number of battery modules

    3

    4

    5

    6

    7

    8

    Battery parallel operation**

    *
    Battery support optionally available.
    **
    Max. 3 batteries with the same capacity can be combined. Max. 2 batteries can be combined with BYD Battery-Box Premium HVM 22.1.
    IMPORTANT! To ensure reliable operation with a BYD Battery-Box Premium, the following switch-on sequence for the system must always be observed.
    1

    Switch on the battery.

    2

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

    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.

    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.

    Notification of system shutdown

    Status codes about the inactive state of the battery are displayed on the user interface of the inverter or sent via Solar.web by means of SMS or e-mail (only if notification via Solar.web is configured accordingly).

    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 (→).

    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.

    Protection of people and equipment

    Central grid and system protection

    The inverter offers the option to use the integrated AC relays as coupling 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 the chapter "WSD (Wired Shut Down)".

    Central grid and system protection

    The inverter offers the option to use the integrated AC relays as coupling 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 the chapter "WSD (Wired Shut Down)".

    WSD (wired shutdown)

    The wired shutdown (WSD) interrupts the inverter feeding energy into the grid if the trigger device (switch) has been activated.

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

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

    RCMU

    The inverter is equipped with a universal current-sensitive residual current monitoring unit (RCMU = Residual Current Monitoring Unit) in accordance with IEC 62109-2.
    This device monitors residual currents from the PV module to the AC output of the inverter and disconnects the inverter from the grid in the event of unauthorised residual current.

    Surge protective device

    The inverter is equipped with an integrated surge protective device on the DC and AC side in accordance with IEC 62109-2. The surge protective device protects the system against damage in the event of an overvoltage.

    Control elements 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 gland/strain-relief device AC
    (7)
    6-pin ground electrode terminal
    (8)
    Cable gland/strain-relief device in the data communication area
    (9)
    Connection area divider
    (10)
    10 x DC cable glands
    (11)
    Optional cable gland (M16)
    (12)
    Optional cable gland (M16 - M20)
    (13)
    Optional cable gland (M16 - M32)
    (14)
    Optional cable gland (M16 - M25)

    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 gland/strain-relief device AC
    (7)
    6-pin ground electrode terminal
    (8)
    Cable gland/strain-relief device in the data communication area
    (9)
    Connection area divider
    (10)
    10 x DC cable glands
    (11)
    Optional cable gland (M16)
    (12)
    Optional cable gland (M16 - M20)
    (13)
    Optional cable gland (M16 - M32)
    (14)
    Optional cable gland (M16 - M25)

    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.

    Ground electrode terminal

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

    • AC cable
    • Module mounting system
    • Ground rod

    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), a conventional padlock can be used to secure the inverter against being switched on/off.
    • The national guidelines must be complied with in this respect.

    Data communication area

    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. The inputs M0 and M1 can be selected for this purpose. Max. 4 Modbus participants per input, see chapter Modbus participants on page (→).

    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.

       Operating status LED

    Indicates the inverter operating status.

    LAN 1

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

    LAN 2

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

    WSD terminal

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

    IOs terminal

    Push-in terminal for digital inputs/outputs. See chapter Permitted cables for the data communication area 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 Functions andI/Os on page (→).

    Internal schematic connection diagram of the IOs

    On the V+/GND pin, it is possible to feed in a voltage of around 12.5 - 24 V (+ max. 20%) with an external power supply. The outputs IO 0 - 5 can then be operated with the external voltage. A maximum of 1 A can be drawn per output, with a maximum of 3 A allowed in total. The fuse protection must be located externally.

    CAUTION!

    Risk of polarity reversal at the terminals due to improper connection of external power supplies.

    This may result in severe damage to the inverter.

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

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

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

    (1)
    Power limitation

    Backup power variant - PV Point (OP)

    General

    PV Point (OP)

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

    With the PV Point, in the event of a failure of the public grid, single-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 solar modules or an optional battery. In grid-connected operation, the OP terminal is not supplied with voltage, therefore the connected loads will not be supplied with power in this operating mode.

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

    General

    PV Point (OP)

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

    With the PV Point, in the event of a failure of the public grid, single-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 solar modules or an optional battery. In grid-connected operation, the OP terminal is not supplied with voltage, therefore the connected loads will not be supplied with power in this operating mode.

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

    PV Point (OP)

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

    With the PV Point, in the event of a failure of the public grid, single-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 solar modules or an optional battery. In grid-connected operation, the OP terminal is not supplied with voltage, therefore the connected loads will not be supplied with power in this operating mode.

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

    Explanation - PV Point (OP)

    The inverter can provide 120 to 240 V at the PV Point. A corresponding configuration must be set up during commissioning.

    At 120 to 240 V output voltage, a maximum of 13 A AC continuous current is available.

    For example:
    120 V = max. 1.5 kW
    230 V = 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 solar 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 solar modules is available in backup power mode, backup power mode ends automatically. If sufficient energy becomes available from the solar 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. The maximum power in backup power mode according to the technical data must be observed.

    Backup power variant - Full Backup

    General

    Prerequisites for backup power mode

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

    In order to use the inverter's backup power function, the following prerequisites must be fulfilled:
    • 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 or usage of a switch box from Enwitec (see chapter Components for automatic Full Backup backup power changeover on page (→) or Circuit diagrams on page (→)).
    • Mount and configure the Fronius Smart Meter at the feed-in point.
    • Attach a warning notice for the backup power supply (https://www.fronius.com/en/search-page, item number: 42,0409,0275) on the electrical distributor.
    • Apply the necessary settings in the "Devices and system components" → "Functions and pins" → "Backup power" menu area and activate backup power.
    • Follow the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365) step by step and confirm.

    General

    Prerequisites for backup power mode

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

    In order to use the inverter's backup power function, the following prerequisites must be fulfilled:
    • 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 or usage of a switch box from Enwitec (see chapter Components for automatic Full Backup backup power changeover on page (→) or Circuit diagrams on page (→)).
    • Mount and configure the Fronius Smart Meter at the feed-in point.
    • Attach a warning notice for the backup power supply (https://www.fronius.com/en/search-page, item number: 42,0409,0275) on the electrical distributor.
    • Apply the necessary settings in the "Devices and system components" → "Functions and pins" → "Backup power" menu area and activate backup power.
    • Follow the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365) step by step and confirm.

    Prerequisites for backup power mode

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

    In order to use the inverter's backup power function, the following prerequisites must be fulfilled:
    • 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 or usage of a switch box from Enwitec (see chapter Components for automatic Full Backup backup power changeover on page (→) or Circuit diagrams on page (→)).
    • Mount and configure the Fronius Smart Meter at the feed-in point.
    • Attach a warning notice for the backup power supply (https://www.fronius.com/en/search-page, item number: 42,0409,0275) on the electrical distributor.
    • Apply the necessary settings in the "Devices and system components" → "Functions and pins" → "Backup power" menu area and activate backup power.
    • Follow the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365) step by step and confirm.

    Transitioning from feeding energy into the grid 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 dropped below 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.

    Transitioning from backup power mode to feeding energy into the grid

    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 returned public grid is determined by checking the measured values of the Fronius Smart Meter.
    5. The inverter ends backup power mode.
    6. All circuits are reconnected to the public grid and are supplied by the grid.
    7. The inverter can start feeding energy into the grid again after performing the grid checks required by the relevant standard.

    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 solar modules.
    • The public grid is functioning again.
    • The battery is switched off and on.

    Cabling variants including emergency 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.

    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.

    Transitioning from feeding energy into the grid 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 and K2 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 the contactors K1 and K2 3-pin open. The inverter activates relay K3, which interrupts the supply to contactors K1 and K2. This prevents unintentional activation of contactors K1 and K2 and thus a grid connection when voltage is restored in the grid. The NC auxiliary contacts of contactors K1 and K2 send feedback to the inverter that the contactors are 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 contactors' feedback as well as the measurements on the inverter terminals and the Smart Meter that backup power mode can be started.
    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.

    Transitioning from backup power mode to feeding energy into the grid

    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 returned 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. The contactors K1 and K2 are 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 feeding energy into the grid again after performing the grid checks required by the relevant standard.

    All-pin separation cabling variant, e.g. Germany, France

    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 nominal output of the inverter. Furthermore, the performance of the connected battery must also be considered.

    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 nominal output of the inverter. Furthermore, the performance of the connected battery must also be considered.

    Transitioning from feeding energy into the grid 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, K2, 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 the contactors K1 and K2 open at all pins. The NC auxiliary contacts of contactors K1 and K2 send feedback to the inverter that the contactors are 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, K2, K4 and K5. This prevents unintentional activation of contactors K1, K2, 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 contactor's feedback as well as the measurements on the inverter terminals and the Smart Meter that the emergency power mode can be activated.
    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.

    Transitioning from backup power mode to feeding energy into the grid

    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 returned 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, 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 feeding energy into the grid again after performing the grid checks required by the relevant standard.

    All-pin split separation cabling variant (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.

    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.

    Transitioning from feeding energy into the grid 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 the contactors K1 and K2 open at all pins. 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 contact of contactors K4 and K5 is 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 contactors' feedback as well as the measurement on the inverter terminals and the Smart Meter that backup power mode can be started.
    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.

    Transitioning from backup power mode to feeding energy into the grid

    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 returned 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 feeding energy into the grid again after performing the grid checks required by the relevant standard.

    Installation

    General

    Quick-lock system

    A quick-lock 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-lock spring (2).

    The system is independent of torque.

    NOTE!

    Danger when using a drill driver.

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

    Use a screwdriver (TX20).

    Do not turn the screws more than 180°.

    General

    Quick-lock system

    A quick-lock 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-lock spring (2).

    The system is independent of torque.

    NOTE!

    Danger when using a drill driver.

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

    Use a screwdriver (TX20).

    Do not turn the screws more than 180°.

    Quick-lock system

    A quick-lock 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-lock spring (2).

    The system is independent of torque.

    NOTE!

    Danger when using a drill driver.

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

    Use a screwdriver (TX20).

    Do not turn the screws more than 180°.

    Warning notices on the device

    Technical data, warning notices and safety symbols are affixed to the inverter. These warning notices and safety symbols must not be removed or painted over. They warn against incorrect operation which can lead to serious injury and 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 production year. The last two digits stand for 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 mark – confirms compliance with applicable EU directives and regulations.

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

    WEEE mark – 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 mark – tested in accordance with the requirements of Australia and New Zealand.

    ICASA mark – tested in accordance with the requirements of the Independent Communications Authority of South Africa.

    CMIM mark – tested in accordance with IMANOR requirements for import regulations and compliance with Moroccan standards.

    Safety symbols:

    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, it must be disconnected and de-energized at the input and output.

    System component compatibility

    All installed components 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.

    CAUTION!

    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.

    Installation location and position

    Choosing the location of the inverter

    Please note 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%

     

    If the inverter is installed in a switch cabinet or similar enclosed space, ensure sufficient heat dissipation with forced-air ventilation.

    For detailed information on the dimensions of the inverter, see chapter Fronius Symo GEN24 6 - 10 kW on page (→).

    When installing the inverter on the outer walls of cattle sheds, it is important to keep a minimum clearance of 2 m between all sides of the inverter and air vents 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)
    • Poles (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 car park 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 resistant to water jets from any direction and can also be used in damp environments.

     

    In order to minimise the heating up of the inverter, do not expose it to direct insolation. The inverter should be installed in a protected location, for example, below the PV modules or under an overhanging roof.

     

     

    IMPORTANT!
    The inverter must not be installed or used at altitudes above 4000 m.

     

    Do not install the inverter in:

    • Areas where it may be exposed to ammonia, corrosive gases, acids or salts (e.g. fertiliser storage areas, vent openings for livestock stables, chemical plants, tanneries, etc.)

     

    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 (horses, cattle, sheep, pigs, etc.)
    • Stables or adjoining areas
    • Storage areas for hay, straw, chaff, animal feed, fertilizers, etc.

     

    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 chapter 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

    Choosing the location of the inverter

    Please note 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%

     

    If the inverter is installed in a switch cabinet or similar enclosed space, ensure sufficient heat dissipation with forced-air ventilation.

    For detailed information on the dimensions of the inverter, see chapter Fronius Symo GEN24 6 - 10 kW on page (→).

    When installing the inverter on the outer walls of cattle sheds, it is important to keep a minimum clearance of 2 m between all sides of the inverter and air vents 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)
    • Poles (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 car park 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 resistant to water jets from any direction and can also be used in damp environments.

     

    In order to minimise the heating up of the inverter, do not expose it to direct insolation. The inverter should be installed in a protected location, for example, below the PV modules or under an overhanging roof.

     

     

    IMPORTANT!
    The inverter must not be installed or used at altitudes above 4000 m.

     

    Do not install the inverter in:

    • Areas where it may be exposed to ammonia, corrosive gases, acids or salts (e.g. fertiliser storage areas, vent openings for livestock stables, chemical plants, tanneries, etc.)

     

    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 (horses, cattle, sheep, pigs, etc.)
    • Stables or adjoining areas
    • Storage areas for hay, straw, chaff, animal feed, fertilizers, etc.

     

    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 chapter 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

    Choosing the location of third-party batteries

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

    Explanation of symbols for the installation position

     

    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.

    Install the mounting bracket and hang up the inverter

    Selecting the fixing 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.

    Selecting the fixing 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.

    Properties of the mounting bracket

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

    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.

    Do not deform the mounting bracket

    NOTE!

    When fitting the mounting bracket to the wall or column, ensure that the mounting bracket does not become deformed.

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

    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

    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)


    Attaching the mounting bracket to mounting rails

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

    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.

    The lower area of the inverter is pushed into the snap-in tabs until the inverter audibly clicks into place on both sides.

    Check that the inverter is correctly positioned on both sides.

    Prerequisites for connecting the inverter

    Permitted cables

    Cables with the following design can be connected to the terminals of the inverter:

    • Copper: round, solid
    • Copper: round, fine-stranded, up to conductor class 4

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

    Number of pins

    Solid

    Multi-stranded

    Fine-stranded

    Fine-stranded with ferrules‐
    with/without collar

    5

    2.5 - 10 mm2

    2.5 - 10 mm2

    2.5 - 10 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

    Solid

    Multi-stranded

    Fine-stranded

    Fine-stranded with ferrules‐
    with/without collar

    3

    1.5 - 10 mm2

    1.5 - 10 mm2

    1.5 - 10 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

    Solid

    Multi-stranded

    Fine-stranded

    Fine-stranded with ferrules‐
    with/without collar

    2 x 4

    4 - 10 mm2

    4 - 10 mm2

    4 - 10 mm2

    4 - 6 mm2

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

    Number of pins

    Solid

    Multi-stranded

    Fine-stranded

    Fine-stranded with ferrules‐
    with/without collar

    2

    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

    *
    According to product standard IEC 62109, the ground conductor must correspond to the phase cross-section for phase cross-sections ≤16 mm²; for phase cross-sections >16 mm², it must correspond to at least 16 mm².
    **
    The cable cross section must be dimensioned in accordance with the installation situation and the specifications of the battery manufacturer.

    Permitted cables

    Cables with the following design can be connected to the terminals of the inverter:

    • Copper: round, solid
    • Copper: round, fine-stranded, up to conductor class 4

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

    Number of pins

    Solid

    Multi-stranded

    Fine-stranded

    Fine-stranded with ferrules‐
    with/without collar

    5

    2.5 - 10 mm2

    2.5 - 10 mm2

    2.5 - 10 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

    Solid

    Multi-stranded

    Fine-stranded

    Fine-stranded with ferrules‐
    with/without collar

    3

    1.5 - 10 mm2

    1.5 - 10 mm2

    1.5 - 10 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

    Solid

    Multi-stranded

    Fine-stranded

    Fine-stranded with ferrules‐
    with/without collar

    2 x 4

    4 - 10 mm2

    4 - 10 mm2

    4 - 10 mm2

    4 - 6 mm2

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

    Number of pins

    Solid

    Multi-stranded

    Fine-stranded

    Fine-stranded with ferrules‐
    with/without collar

    2

    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

    *
    According to product standard IEC 62109, the ground conductor must correspond to the phase cross-section for phase cross-sections ≤16 mm²; for phase cross-sections >16 mm², it must correspond to at least 16 mm².
    **
    The cable cross section must be dimensioned in accordance with the installation situation and the specifications of the battery manufacturer.

    Permitted cables for the data communication area

    Cables with the following design can be connected to the terminals of the inverter:

    • Copper: round, solid
    • Copper: round, fine-stranded

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

    WSD connections with push-in terminal

    Distance
    max.

    Stripping length

    Solid

    Fine-stranded

    Fine-stranded with ferrules with collar

    Fine-stranded with ferrules without collar

    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
    max.

    Stripping length

    Solid

    Fine-stranded

    Fine-stranded with ferrules with collar

    Fine-stranded with ferrules without collar

    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
    max.

    Stripping length

    Solid

    Fine-stranded

    Fine-stranded with ferrules with collar

    Fine-stranded with ferrules without collar

    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 conductor possible

    LAN connections

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

    Cross section of the AC cable

    For a standard M32 metric screw joint with a reducer:
    Cable diameter from 7-15 mm

    When using an M32 metric screw joint (reducer removed):

    cable diameter from 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 screw joint must be replaced by an M32 screw joint with a larger clamping area – item number: 42,0407,0780 – strain-relief device M32 x 1.5 KB 18–25.

    Cross section 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.

    Maximum alternating current fuse protection

    NOTE!

    National regulations, the grid operator's specifications 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!
    The inverter can be used with max. an automatic circuit breaker C 32 A.

    Inverter

    Phases

    AC output

    Maximum fuse rating

    Recommended fuse rating

    Fronius Symo GEN24 6 kW

    3

    6000 W

    C 32 A

    C 16 A

    Fronius Symo GEN24 8 kW

    3

    8000 W

    C 32 A

    C 25 A

    Fronius Symo GEN24 10 kW

    3

    10000 W

    C 32 A

    C 32 A

    Connecting the inverter to the public grid (AC side)

    Safety

    WARNING!

    Danger due to incorrect operation and incorrectly performed work.

    This can result in serious injury and damage to property.

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

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

    WARNING!

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

    An electric shock can be fatal.

    Prior to any connection work, disconnect the inverter on the AC side and the DC side.

    Only an authorised 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 authorised specialist.

    Safety

    WARNING!

    Danger due to incorrect operation and incorrectly performed work.

    This can result in serious injury and damage to property.

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

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

    WARNING!

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

    An electric shock can be fatal.

    Prior to any connection work, disconnect the inverter on the AC side and the DC side.

    Only an authorised 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 authorised specialist.

    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 grounded.

    IMPORTANT!
    The ground conductor of the AC cable must be laid in such a way that it is the last to be disconnected in the event that the strain-relief device should fail.
    This can be ensured by making it somewhat longer and by laying it in a loop.

    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.
    3.
    Tools required: Crimping tool
    4.
    Only one conductor may be connected to each pin.
    1

    Turn off the automatic circuit breaker.

    2

    Make sure that the DC disconnector is in the "Off" switch setting.
    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

    Press the lock on the back of the terminal and remove the AC terminal.
    Route the mains cable from below through the strain-relief device located on the right side and the ferrite core.

    IMPORTANT!
    The ground conductor must not be routed through the ferrite core and must be connected with a loop so that if the strain-relief device fails, the ground conductor is disconnected last.
    For more information on the strain-relief device, see chapter Cross section of the AC cable on page (→).

    4

    Strip the insulation of the single conductors by 12 mm.
    The cable cross section must be selected in accordance with the instructions in Permitted cables from 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 cap nut of the strain-relief device with a torque of 6-7 Nm.

    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.

    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.

    Safety

    WARNING!

    Incorrect operation or poorly executed work can cause serious injury or damage.

    Commissioning as well as maintenance and service work in the power module of the inverter must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations. Read the Installation and Operating Instructions before installing and commissioning the equipment.

    WARNING!

    An electric shock can be fatal.

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

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

    Only an authorised 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 authorised specialist.

    PV generator - general information

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

    When using for the first time, set up the PV generator according to the respective configuration (also possible later in the “System configuration” menu under the “Components” menu item).

    PV generator 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.

    Total current less than or equal to 25 A.

    PV generator settings:
    PV 1: ON
    PV 2: OFF

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

    PV generator settings:
    PV 1: ON
    PV 2: OFF

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

    PV generator 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 (≤ 56.25 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 ≤ 37.5 A / PV 2 ≤ 18.75 A

    PV generator settings:
    PV 1: ON
    PV 2: ON

    Connecting the 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!
    Before stripping the insulation, push the cables through the DC bushings to prevent individual wires being bent or broken.

    3
    4
    5

    Select the cable cross section in accordance with the instructions in Permitted cables 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.

    NOTE!

    No multi-wire connections are possible with this terminal type.

    Only one conductor may be connected to each pin. The DC cables can be connected to the DC terminals without ferrules.

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

    NOTE!

    Do not use a drill driver as this could cause overturning.

    A possible consequence of overturning is, for example, damaging the strain-relief device.

    Connecting the battery to the inverter

    Safety

    WARNING!

    Incorrect operation or poorly executed work can cause serious injury or damage.

    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!

    An electric shock can be fatal.

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

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

    Only an authorised 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 authorised specialist.

    Safety

    WARNING!

    Incorrect operation or poorly executed work can cause serious injury or damage.

    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!

    An electric shock can be fatal.

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

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

    Only an authorised 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 authorised specialist.

    Connecting the battery on the DC side

    CAUTION!

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

    Operating the battery above the permissible altitude can result in restricted operation, failure of the 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 external batteries must be taken into account according to the manufacturer's specifications, see chapter Suitable batteries on page (→).

    Ihr Browser kann diesen Film leider nicht anzeigen.
    1.
    Tools required: TX20 screwdriver
    2.
    Connect the ground conductor of the battery to 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: TX20 screwdriver
    1

    Manually push the battery cables through the DC bushings.

    * When connecting a battery from the manufacturer BYD, the ground conductor of the battery must be connected externally (e.g. switch cabinet). Observe the minimum cross section of the ground conductor to the battery.

    IMPORTANT!
    Before stripping the insulation, push the cables through the DC bushings to prevent individual wires being bent or broken.

    2
    3

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

    4

    Select the cable cross section in accordance with the instructions in Permitted cables 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.

    NOTE!

    No multi-wire connections are possible with this terminal type.

    Only one conductor may be connected to each pin. The DC cables can be connected to the DC terminals without ferrules.

    5

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

    6
    7

    CAUTION!

    Risk 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 marked BAT for battery connection.

     

    8

    CAUTION!

    Danger due to polarity reversal at the terminals.

    Serious substantive 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 (→)).

    9

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

    10

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

    NOTE!

    Do not use a drill driver as this could cause overturning.

    A possible consequence of overturning is, for example, damaging the strain-relief device.

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

    Connecting backup power - PV Point (OP)

    Safety

    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).

    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 interruption-free supply.

    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 authorised 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.

    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 authorised specialist.

    Safety

    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).

    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 interruption-free supply.

    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 authorised 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.

    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 authorised specialist.

    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 earth.

    For the Circuit Diagram recommended by Fronius, see Circuit Diagram - PV Point (OP) on page (→).

    1

    Switch off the automatic circuit breaker and DC disconnector.

    2

    Make sure that the DC disconnector is in the "Off" switch setting.
    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.

    CAUTION!

    Danger from faulty or incorrect holes.

    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 is damaged inside the device (for example connection block).

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

    Deburr the holes 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 strain-relief device into the hole and secure to the torque specified by the manufacturer.

    5

    Guide the mains cable through the strain-relief device 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.

    NOTE!

    Only one conductor may be connected to each pin. The conductors can be connected without ferrules.

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

    NOTE!

    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 cap nut of the strain-relief device to the torque specified by the manufacturer.

    Connecting backup power - Full Backup

    Safety

    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.

    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). Whether an external protection relay must be used or not is the decision of the respective grid operator.

    IMPORTANT!
    No uninterruptible power supply (UPS) must be operated in the backup power circuit. The Installation and Operating Instructions must be read carefully prior to use. If anything is unclear, contact your vendor immediately.

    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 authorised 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.

    Safety

    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.

    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). Whether an external protection relay must be used or not is the decision of the respective grid operator.

    IMPORTANT!
    No uninterruptible power supply (UPS) must be operated in the backup power circuit. The Installation and Operating Instructions must be read carefully prior to use. If anything is unclear, contact your vendor immediately.

    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 authorised 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.

    Cabling variants including backup power circuits with 3-pin separation e.g. Austria or Australia

    Circuit Diagram
    The Circuit Diagram for the 3-pin double separation - e.g. Austria, can be found on page (→) in the appendix of this document.
    The Circuit Diagram for the 3-pin single separation - e.g. Australia, can be found in the appendix of this document on page (→).

    Cabling of backup power circuit 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 nominal output of the inverter.

    The backup power circuits and non-backup power circuits must be fused separately according to the required safety measures (residual-current circuit breaker, automatic circuit breaker, etc.).
    In backup power mode, only the backup power circuits are disconnected from the grid by contactors K1 and K2, 3-pin. The rest of the home network is not supplied with power in this case.

    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 inverter and the residual-current circuit breaker 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) after the Fronius Smart Meter and fused accordingly.
    • An NC contact for the relay K3 interrupts the supply voltage to contactors K1 and K2. 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 on whether the locking was successfully performed by relay K3.
    • Additional inverters or other AC sources can be installed in the backup power circuit after the main contacts of K1 and K2. The sources are not synchronised to the network of the inverter because this backup power network has a frequency of 53 Hz.
    • The use of contactor K2 is optional in Australia.

    Al-pin separation cabling variant e.g. Germany, France, Spain

    Circuit Diagram
    The Circuit Diagram for the 4-pin double separation - e.g. Germany, can be found in the appendix of this document on page (→)
    The Circuit Diagram for the 4-pin single separation - e.g. France and Spain, can be found in the appendix of this document on page (→).

    Cabling of backup power circuit 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 nominal output of the inverter.

    The backup power circuits and non-backup power circuits must be fused separately according to the required safety measures (residual-current circuit breaker, automatic circuit breaker, etc.).
    In backup power mode, only the backup power circuits are disconnected at all pins from the grid by contactors K1 and K2; an earth connection is only established for these circuits. The rest of the home network is not supplied with power in this case.

    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 and the residual-current circuit breaker 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) after 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 established as close as possible to the inverter, but in any case before the first residual-current circuit breaker. 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 provided via phase 1 (L1) of the public grid.
    • An NC contact for the relay K3 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 feedback to the inverter on whether the locking was successfully performed by relay K3.
    • The use of contactor K2 is optional in France.
    • Additional inverters or other AC sources can be installed in the backup power circuit after the main contacts of K1 and K2. The sources are not synchronised to the network of the inverter because this backup power network has a frequency of 53 Hz.

    All-pin separation cabling variant, e.g. Italy

    Circuit Diagram
    The Circuit Diagram for the 4-pin double separation with ext. grid and system protection - e.g. Italy, can be found on page (→) in the appendix of this document.

    Backup power circuit and non-backup power circuits

    IMPORTANT!
    Fronius Smart Meter US-480 must be used for these circuit variants.

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

    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 and the residual-current circuit breaker 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) after the Fronius Smart Meter and fused accordingly.
    • Actuation of contactors K1 and K2 is carried out by the external grid and system protection unit.
    • The external grid and system protection unit must be installed after the Fronius Smart Meter. Precise installation and wiring instructions for the external grid and system protection unit can be found in its separate 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 before 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 contactors K1, K2, K4 and K5 is provided 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 the locking was successfully performed by relay K3.
    • Additional inverters or other AC sources can be installed in the backup power circuit after the main contacts of K1 and K2. The sources are not synchronised to the network of the inverter because this backup power network has a frequency of 53 Hz.

    Testing backup power mode

    Backup power mode should be tested once it has been installed and set up for the first time. A battery state of charge of over 30% is recommended when in test mode.

    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).

    Connecting the data communication cable

    Modbus participants

    The inputs M0 and M1 can be selected for this purpose. A maximum of 4 Modbus participants can be connected to the Modbus terminal on 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 2 participants. If the "Inverter control via Modbus" function is activated in the "Communication” "Modbus" menu, no Modbus participants are possible. It is not possible to send and receive data at the same time.

    Example 1:

    Input

    Battery

    Fronius
    Ohmpilot

    Quantity
    Primary meter

    Quantity
    Secondary meter

    Modbus 0 (M0)

    0

    4

    0

    2

    0

    1

    Modbus 1 (M1)

    1

    3

    Example 2:

    Input

    Battery

    Fronius
    Ohmpilot

    Quantity
    Primary meter

    Quantity
    Secondary meter

    Modbus 0 (M0)

    1

    3

    Modbus 1 (M1)

    0

    4

    0

    2

    0

    1

    Modbus participants

    The inputs M0 and M1 can be selected for this purpose. A maximum of 4 Modbus participants can be connected to the Modbus terminal on 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 2 participants. If the "Inverter control via Modbus" function is activated in the "Communication” "Modbus" menu, no Modbus participants are possible. It is not possible to send and receive data at the same time.

    Example 1:

    Input

    Battery

    Fronius
    Ohmpilot

    Quantity
    Primary meter

    Quantity
    Secondary meter

    Modbus 0 (M0)

    0

    4

    0

    2

    0

    1

    Modbus 1 (M1)

    1

    3

    Example 2:

    Input

    Battery

    Fronius
    Ohmpilot

    Quantity
    Primary meter

    Quantity
    Secondary meter

    Modbus 0 (M0)

    1

    3

    Modbus 1 (M1)

    0

    4

    0

    2

    0

    1

    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 cap nut, push out the sealing ring and remove the corresponding blanking plug.
    1

    Undo the strain-relief device cap 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 strain-relief device cap nut and then through the housing opening.

    4

    Insert the sealing ring between the cap 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 strain-relief device.

    5

    Fasten the cap nut of the strain-relief device with a torque of min. 2.5 - max. 4 Nm.

    Connecting the battery communication cables

    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 section Permitted cables for the data communication area on page (→).

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

    IMPORTANT!
    Improperly fitted shielding can cause data communication problems.

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    1.
    Disconnect the terminal.
    2.
    Lay the data communication cable. Press in the seal until it reaches the underside of the strain-relief device.

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

    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 functioning.

    For permissible cable and max. distances for the data communication range see chapter Permitted cables for the data communication area on page (→).

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

    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 (primary device). The WSD switch of all other inverters should be in the 0 (secondary device) position.

    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, they must be connected in series.

    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 according to chapter Suitable batteries on page (→).

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

    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 according to chapter Suitable batteries on page (→).

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

    Starting the inverter for the first time

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

    If the setup process is cancelled before the process is complete, any data that has been input up to this point is lost and the start screen with the installation wizard is shown again. If the process is interrupted, such as in the event of a power outage, the data is saved. Commissioning may be continued from the point at which the process was interrupted once the power supply has been 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 using the inverter for the first time. If the country setup needs to be changed at a later date, please contact your installer / Technical Support team.

    Button functions and LED status indicator

    The status of the inverter is shown via the operating status LED. In the event of faults, carry out the individual steps in the Fronius Solar.start app.

    The optical sensor is actuated by touching with a finger.

    The status of the connection is shown via the communication LED. To establish the connection, carry out the individual steps in the Fronius Solar.start app.

     

    Sensor functions

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

       Flashing blue

    2x    = WLAN Protected Setup (WPS) is activated.

       Flashing green

    3 seconds    (max. 6 seconds) = the service message is terminated.

       Lights up yellow

     

    LED status indicator

    The inverter is operating correctly.

       Lights up green

    The inverter starts.

       Flashing green

    The inverter is in standby, is not operational (e.g. no feed-in at night) or is not configured.

       Lights up yellow

    The inverter indicates a non-critical status.

       Flashing yellow

    The inverter indicates a critical status and there is no grid power feed process.

       Lights up red

    The inverter indicates a back-up power overload.

       Flashing red

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

       Flashing green

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

       Flashing blue

    The network connection is not configured.

       Lights up yellow

    The inverter is operating correctly, a network fault is indicated.

       Lights up red

    The inverter is performing an update.

       /    Flashing blue

    Installation with the app

    The "Fronius Solar.start" app is needed for this installation method. Depending on the end device with which the installation will be carried out, download the app for the respective platform.

     

    1Start the installation in the app.
    2Select the product to which the connection should be established.
    3Open the access point by touching the sensor once    → Communication LED: flashes blue.
    4Follow and complete the installation wizard in the individual sections.
    5Add system components in Solar.web and start up the PV system.

    The network wizard and the product setup can be carried out independently of each other. A network connection is required for the Solar.web installation wizard.

    Installation using the web browser

    WLAN:

    1Open the access point by touching the sensor once    → Communication LED: flashes blue.
    2Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_PILOT" and the serial number of the device).
    3Password: enter 12345678 and confirm.
    IMPORTANT!
    To enter the password on a Windows 10 operating system, the link "Connect using a security key instead" must first be activated to establish a connection with the password: 12345678.
    4In the browser address bar, enter and confirm the IP address 192.168.250.181. The installation wizard is opened.
    5Follow the installation wizard in the individual sections and complete the installation.
    6Add system components in Solar.web and start up the PV system.

    The network wizard and the product setup can be carried out independently of each other. A network connection is required for the Solar.web installation wizard.

    Ethernet:

    1Establish a connection to the inverter (LAN1) with a network cable (CAT5 STP or higher).
    2Open the access point by touching the sensor once    → Communication LED: flashes blue.
    3In the browser address bar, enter and confirm IP address 169.254.0.180. The installation wizard is opened.
    4Follow the installation wizard in the individual sections and complete the installation.
    5Add system components in Solar.web and start up the PV system.

    The network wizard and the product setup can be carried out independently of each other. A network connection is required for the Solar.web installation wizard.

    Switching off current supply and restarting the inverter

    De-energising the inverter and switching it on again

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

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

    De-energising the inverter and switching it on again

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

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

    Settings - user interface of the inverter

    User settings

    User login

    1Open the user interface of the inverter in your browser.
    2In the "Login" menu, log in using your user name and password, or go to the "User" menu and click on the "User login" button and then log in with your user name and password.

    IMPORTANT!
    Depending on the user's authorization, settings can be executed in the individual menus.

    User settings

    User login

    1Open the user interface of the inverter in your browser.
    2In the "Login" menu, log in using your user name and password, or go to the "User" menu and click on the "User login" button and then log in with your user name and password.

    IMPORTANT!
    Depending on the user's authorization, settings can be executed in the individual menus.

    User login

    1Open the user interface of the inverter in your browser.
    2In the "Login" menu, log in using your user name and password, or go to the "User" menu and click on the "User login" button and then log in with your user name and password.

    IMPORTANT!
    Depending on the user's authorization, settings can be executed in the individual menus.

    Selecting the language

    1In the “User” menu, click on the “Language” button and select the desired language.

    Device configuration

    Components

    Select "Add component+" to add all available components to the system.

    PV generator
    Activate the MPP tracker and enter the connected PV power in the associated field. For combined solar module strings, "PV 1 + PV 2 connected in parallel" must be activated.

    Battery
    If the SoC mode is set to "Automatic", the values "Minimum SoC" and "Maximum SoC" are preset according to the technical specifications of the battery manufacturer.

    If the SoC mode is set to "Manual", the values "Minimum SoC" and "Maximum SoC" may be changed after consultation with the battery manufacturer within the scope of their technical specifications. In the event of a power outage, the set values are not taken into account.

    Using the "Allow battery charging from additional producers in home network" setting, charging of the battery from other external producers is enabled/disabled.

    Using the "Allow battery charging from public grid" setting, charging of the battery from the public grid is enabled/disabled.
    The normative or feed-in tariff rules must be taken into account with this setting. The setting does not affect the charging of the battery by other producers within the home. It merely relates to the process of drawing charging energy from the public grid. Regardless of this setting, any charging from the public grid that is required for service reasons (e.g. necessary re-charging to protect against deep discharge) is still performed.

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

    Primary meter
    To ensure smooth operation in conjunction with other energy producers and in Full Backup backup power mode, it is important to install the Fronius Smart Meter at the feed-in point. The inverter and other producers must be connected to the public grid via the Fronius Smart Meter.
    This setting also affects the behaviour of the inverter at night. If the function is deactivated, the inverter switches to Standby mode as soon as there is no more PV power available, provided that no energy management command is sent to the battery (e.g. minimum state of charge reached). The message "Power low" is displayed. The inverter restarts as soon as an energy management command is sent or sufficient PV power is available.
    If the function is activated, the inverter remains permanently connected to the grid so that energy can be drawn from other producers at any time.
    After connecting the meter, the position must be configured. A different Modbus address needs to be set for each Smart Meter.
    The Watt value on the generator meter is the sum of all generator meters. The Watt value on the consumption meter is the value of all secondary meters.

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

    Components

    Select "Add component+" to add all available components to the system.

    PV generator
    Activate the MPP tracker and enter the connected PV power in the associated field. For combined solar module strings, "PV 1 + PV 2 connected in parallel" must be activated.

    Battery
    If the SoC mode is set to "Automatic", the values "Minimum SoC" and "Maximum SoC" are preset according to the technical specifications of the battery manufacturer.

    If the SoC mode is set to "Manual", the values "Minimum SoC" and "Maximum SoC" may be changed after consultation with the battery manufacturer within the scope of their technical specifications. In the event of a power outage, the set values are not taken into account.

    Using the "Allow battery charging from additional producers in home network" setting, charging of the battery from other external producers is enabled/disabled.

    Using the "Allow battery charging from public grid" setting, charging of the battery from the public grid is enabled/disabled.
    The normative or feed-in tariff rules must be taken into account with this setting. The setting does not affect the charging of the battery by other producers within the home. It merely relates to the process of drawing charging energy from the public grid. Regardless of this setting, any charging from the public grid that is required for service reasons (e.g. necessary re-charging to protect against deep discharge) is still performed.

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

    Primary meter
    To ensure smooth operation in conjunction with other energy producers and in Full Backup backup power mode, it is important to install the Fronius Smart Meter at the feed-in point. The inverter and other producers must be connected to the public grid via the Fronius Smart Meter.
    This setting also affects the behaviour of the inverter at night. If the function is deactivated, the inverter switches to Standby mode as soon as there is no more PV power available, provided that no energy management command is sent to the battery (e.g. minimum state of charge reached). The message "Power low" is displayed. The inverter restarts as soon as an energy management command is sent or sufficient PV power is available.
    If the function is activated, the inverter remains permanently connected to the grid so that energy can be drawn from other producers at any time.
    After connecting the meter, the position must be configured. A different Modbus address needs to be set for each Smart Meter.
    The Watt value on the generator meter is the sum of all generator meters. The Watt value on the consumption meter is the value of all secondary meters.

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

    Functions and
    I/Os

    Backup power
    "Off", "PV Point" or "Full Backup" can be selected for backup power mode.
    Full Backup can only be activated once the required I/O assignments have been configured for backup power. In addition, a meter must be mounted and configured at the feed-in point for Full Backup backup power mode.

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

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

    State of charge warning limit
    A warning is output when the residual capacity of the battery specified here is reached in backup power mode.

    Reserve capacity
    The set value results in a residual capacity (depending on the capacity of the battery) that is reserved for backup power. The battery is not discharged below the residual capacity in grid-connected operation. In backup power mode, the manually set value "Minimum SoC" is not taken into account. If there is a power outage, the battery is always discharged down to the automatically preset minimum SoC in accordance with the technical specifications of the battery manufacturer.

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

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

    Mode

    Description

    Information

    DRM pin

    I/O pin

    DRM0

    Inverter disconnects itself from the grid

    DRM0 occurs if there is an interruption or short circuit on the REF GEN or COM LOAD leads, or if the combinations DRM1 - DRM8 are invalid.
    The mains relays open.

    REF GEN
    COM LOAD

    IO4
    IO5

    DRM1

    Import Pnom ≤ 0% without disconnection from the 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 the 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 percentages always refer to the nominal device output.

    IMPORTANT!
    If the Demand Response Mode (DRM) function is enabled and no DRM control is connected, the inverter switches to Standby mode.

    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.

    Inverter

    "Enforce Standby"
    When the function is activated, the feed-in mode of the inverter is interrupted. This enables a powerless shutdown of the inverter and protects its components. When the inverter is restarted, the standby function is automatically deactivated.

    "PV 1" and "PV 2"

    Parameter

    Range of values

    Description

    "Mode"

    Off

    The MPP tracker is deactivated.

    Auto

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

    Fix

    The MPP tracker uses the voltage defined in the "UDC fix".

    "UDC fix"

    80 ‑ 530 V

    The inverter uses the fixed preset voltage used at the MPP tracker.

    "Dynamic Peak Manager"

    Off

    The function is deactivated.

    On

    The entire solar module string is checked for optimisation potential and determines the best possible voltage for feed-in mode.

    "Ripple Control"
    Ripple control signals are signals sent out by the energy company to switch controllable loads on and off. Depending on the installation situation, ripple control signals may be attenuated or amplified by the inverter. The settings below can be used to counteract this if necessary.

    Parameter

    Range of values

    Description

    "Reduction of Influence"

    Off

    The function is deactivated.

    On

    The 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!

    National regulations, the grid operator's specifications 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.

    Parameter

    Range of values

    Description

    "Switch-Off before 30mA RCD Trip" (only for Primo GEN24)

    0

    No measures to prevent false tripping.

    1

    The inverter switches off at 15 mA before the residual current circuit breaker trips.

    "Leakage Current Factor" (only for Symo GEN24)

    0 ‑ 0.25
    (default: 0.16)

    Reducing the setting value reduces the leakage current and raises the intermediate circuit voltage, which slightly reduces the efficiency. Setting value 0.16 enables optimum efficiency.

    "Iso Warning"

    Parameter

    Range of values

    Description

    "Iso Warning"

    Off

    The isolation warning is deactivated.

    On

    The isolation warning is activated.
    A warning is issued in the event of an isolation fault.

    "Iso Alternative Mode"

     

    Accurate

    Isolation monitoring is performed with the highest accuracy and the measured insulation resistance is displayed on the user interface of the inverter.

    Fast

    Isolation monitoring is performed with lower accuracy, which shortens the duration of the isolation measurement, and the isolation value is not displayed on the user interface of the inverter.

    "Isolation Warning Threshold"

    100,000 ‑
    10,000,000 Ω

    If this threshold is undershot, status code 1083 is displayed on the user interface of the inverter.

    "Backup Power"

    Parameter

    Range of values

    Description

    "Backup Nominal Voltage"

    220 ‑ 240 V

    Is the nominal phase voltage output in backup power mode.

    "Backup Undervoltage Protection Limit U< [pu]"

    0 ‑ 2%V

    The setting value is used to set the limit value for switching off backup power mode,
    e. g. setting value 0.9 = 90% of the nominal voltage.

    "Backup Undervoltage Protection Time U<"

    0.04 ‑ 20 s

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

    "Backup Overvoltage Protection Limit U> [pu]"

    0 ‑ 2%V

    The setting value is used to set the limit value for switching off backup power mode,
    e. g. setting value 1.1 = 110% of the nominal voltage.

    "Backup Overvoltage Protection Time U>"

    0.04 ‑ 20 s

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

    "Backup Restart Delay"

    0 ‑ 600 s

    Is the waiting time for resumption of backup power mode after a shutdown.

    "Backup Restart Attempts"

    1 ‑ 10

    Is the max. number of automatic restart attempts. When the max. number of automatic restart attempts is reached, the service message 1177 must be acknowledged manually.

    "Backup External Frequency Check"
    (Italy only)

     

    Off

    The function is deactivated

    On

    For backup power mode (Full Backup) in Italy, the external frequency check must be activated. Before ending backup power mode, the grid frequency is checked. When the grid frequency is in the allowed limit range, the loads are connected to the public grid.

    "Backup Short Circuit Trip Time"

    0.001 ‑ 60 s

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

    Energy management

    Energy management

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

    The "Target Value at Feed-In Point" also applies if a further source feeds into this Smart Meter. However, in this case:
    • The Fronius Smart Meter must be installed and configured at the feed-in point.
    • The "Allow battery charging from additional producers in 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 "Operating 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".

    External producers (only possible with active battery)
    If further decentralised producers are installed in the house, and these are incorporated into the self-consumption regulation of the Fronius Hybrid inverter, the setting "Allow battery charging from additional producers in home network" must be activated in the menu area "Device Configuration" → "Components" (see chapter Components on page (→).
    This means that energy can be drawn from the household network and fed into the battery via the Fronius GEN24 Plus inverter. You can restrict how much power is consumed by the Fronius GEN24 Plus inverter by specifying the maximum AC power (AC max.). A maximum power consumption of the AC nominal capacity of the Fronius GEN24 Plus inverter is possible.

    "Battery Management"
    Using the time-dependent battery control, it is possible to prevent or restrict charging/discharging of the battery and to specify a defined charging power.

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

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

    The following values can be selected for the rules of the time-dependent battery control:
    • "Max charging power"
      The battery is charged with the value set in the input field "Power" at most.
    • "Min charging power"
      The battery is charged with the value set in the input field "Power" at minimum.
    • "Max discharge power"
      The battery is discharged with the value set in the input field "Power" at most.
    • "Min discharge power"
      The battery is discharged with the value set in the input field "Power" at minimum.

    The timing, when the rule applies, is set in the "Time" input fields and by selecting from the "Weekdays".

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

    Energy management

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

    The "Target Value at Feed-In Point" also applies if a further source feeds into this Smart Meter. However, in this case:
    • The Fronius Smart Meter must be installed and configured at the feed-in point.
    • The "Allow battery charging from additional producers in 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 "Operating 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".

    External producers (only possible with active battery)
    If further decentralised producers are installed in the house, and these are incorporated into the self-consumption regulation of the Fronius Hybrid inverter, the setting "Allow battery charging from additional producers in home network" must be activated in the menu area "Device Configuration" → "Components" (see chapter Components on page (→).
    This means that energy can be drawn from the household network and fed into the battery via the Fronius GEN24 Plus inverter. You can restrict how much power is consumed by the Fronius GEN24 Plus inverter by specifying the maximum AC power (AC max.). A maximum power consumption of the AC nominal capacity of the Fronius GEN24 Plus inverter is possible.

    "Battery Management"
    Using the time-dependent battery control, it is possible to prevent or restrict charging/discharging of the battery and to specify a defined charging power.

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

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

    The following values can be selected for the rules of the time-dependent battery control:
    • "Max charging power"
      The battery is charged with the value set in the input field "Power" at most.
    • "Min charging power"
      The battery is charged with the value set in the input field "Power" at minimum.
    • "Max discharge power"
      The battery is discharged with the value set in the input field "Power" at most.
    • "Min discharge power"
      The battery is discharged with the value set in the input field "Power" at minimum.

    The timing, when the rule applies, is set in the "Time" input fields and by selecting from the "Weekdays".

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

    Examples - Time-dependent battery control

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

    Example: Battery system

     

    PV system available power

    1000 W

    Power into the battery

    500 W

    Power output (AC) of the inverter

    500 W

    Target value set at feed-in point

    0 W

    Infeed into the public grid

    0 W

    Consumption in home

    500 W

    Example: Battery system without photovoltaics, including second producer in the house

    Power into the battery

    1500 W

    Power consumption (AC) of the inverter

    1500 W

    Second producer in home network

    2000 W

    Target value set at feed-in point

    0 W

    Infeed into the public grid

    0 W

    Consumption in home

    500 W

    Example: Battery system including second producer in the house

     

    PV system available power

    1000 W

    Power into the battery

    2500 W

    Power consumption (AC) of the inverter

    1500 W

    Second producer in home network

    2000 W

    Target value set at feed-in point

    0 W

    Infeed into the public grid

    0 W

    Consumption in home

    500 W

    Example: Battery system including second producer in the house (with AC max. limitation)

    PV system available power

    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 producer in home network

    2000 W

    Target value set at feed-in point

    0 W

    Infeed into the public grid

    500 W

    Consumption in home

    500 W

    Allowed battery control rules

    A rule always consists of a restriction or parameter and the time control "Time" and "Weekdays" while the rule is active. Rules with the same restriction (e.g. max. charging power) must not overlap in time.

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

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

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

    Specifying a defined charging power
    A defined charging power can be specified by setting the min. and max. charging power to the same value.

    Specifying a defined discharging power
    A defined discharging power can be specified by setting the min. and max. discharging power to the same value.

    Possible applications

    • Time-dependent electricity tariffs
    • Battery reservation for market-specific power limitation
    • Time-dependent storage reservation for a backup power situation

    PV power reduction

    The rules in the "Battery Management" menu area enable optimum 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 battery discharging

    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 this is already being used to capacity by the battery discharging.

    Since it doesn't 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.

    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 seen as a load. The priority for the load management of the 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 prioritised 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 only after 60 seconds.

    "Load"
    • Control is "Off" (disabled).
    • Control is effected by the "Power Production".
    • Control is effected by "Power Surplus" (given feed 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 enabling "Minimum duration per on-signal", a minimum duration for which the output is to be activated for each switch-on process.
    • Field for activating the "Maximum duration per day".
    • Field for enabling a "Desired duration" for which the output is to be activated in total per day (total of several switch-on processes).

    System

    General

    General settings
    1In the "System name" input field, enter the name of the system (max. 30 characters).
    2"Synchronize time automatically" enabled → select "Area time zone" and "Location time zone". The date and time are applied from the time zone entered.
    2"Synchronize time automatically" disabled → enter or select "Date", "Time", "Area time zone" and "Location time zone".
    3Click on the "Save" button.

    General

    General settings
    1In the "System name" input field, enter the name of the system (max. 30 characters).
    2"Synchronize time automatically" enabled → select "Area time zone" and "Location time zone". The date and time are applied from the time zone entered.
    2"Synchronize time automatically" disabled → enter or select "Date", "Time", "Area time zone" and "Location time zone".
    3Click on the "Save" button.

    Update

    All available updates are made available on the product page and in the "Download search" area under www.fronius.com .

    Firmware update
    1Drag the firmware file into the "Drag&Drop file here" field or select it using "Select file".

    The update will start.

    Setup wizard

    The guided setup wizard can be accessed here.

    Restoring the factory settings

    All settings
    All configuration data is reset with the exception of the country setup. Changes to the country setup may only be carried out by authorized personnel.

    All settings with no network
    All configuration data is reset with the exception of the country setup and the network settings. Changes to the country setup may only be carried out by authorized personnel.

    Event Log

    Current events
    All current events of the connected system components are shown here.

    IMPORTANT!
    Depending on the type of event, these must be confirmed via the "tick" button in order to be processed further.

    Archived
    All events of the connected system components that no longer exist are shown here.

    Information

    This menu displays all system information and the current settings.

    Save as PDF
    1Click on the "Save as PDF" button.
    2Individually select information with the "tick" next to the information or tick to "Select all".
    3Enter the file name in the input field and click on the "Save" button.

    The PDF is created and displayed.

    Licence manager

    The license file contains the performance data and the scope of functions of the inverter. When replacing the inverter, power stage set or data communication area, the license file must also be replaced.

    Licensing - online (recommended):
    An Internet connection and completed configuration on Solar.web is required.
    1Complete the installation work (see chapter Closing the inverter's connection area/housing cover, and commissioning on page (→)).
    2Connect to the user interface of the inverter.
    3Enter the serial number and verification code (VCode) of the defective and replacement unit. The serial number and the VCode can be found on the rating plate of the inverter (see chapter Warning notices on the device on page (→)).
    4Click on the "Start online licensing" button.
    5Skip the Terms of use and Network settings menu items by clicking on "Next".

    The license activation starts.

    Licensing - offline:
    There must be no Internet connection for this. When licensing offline with an established internet connection, the licence file is automatically uploaded to the inverter. Therefore, when uploading the licence file, the following error occurs: "The licence has already been installed and the wizard can be closed".
    1Complete the installation work (see chapter Closing the inverter's connection area/housing cover, and commissioning on page (→)).
    2Connect to the user interface of the inverter.
    3Enter the serial number and verification code (VCode) of the defective and replacement unit. The serial number and the VCode can be found on the rating plate of the inverter (see chapter Warning notices on the device on page (→)).
    4Click on the "Start offline licensing" button.
    5Download the service file onto the end device by clicking on the "Download service file" button.
    6Open the website licensemanager.solarweb.com and log in with your user name and password.
    7Drag or upload the service file into the "Drop service file here or click to upload” field.
    8Download the newly generated license file onto the end device using the "Download license file" button.
    9Go to the user interface of the inverter and drag the license file into the "Drag&Drop licence file here" field, or select it via "Select license file".

    The license activation starts.

    Support

    Activate support user
    1Click the "Activate support user" button.

    The support user is activated.

    IMPORTANT!
    The support user only allows Fronius Technical Support to implement settings on the inverter via a secure connection. The button "End support user access" deactivates the access.

    Create support info (for Fronius Support team)
    1Click on the "Create support info" button.
    2The sdp.cry file is downloaded automatically. To download manually, click on the "Download Support-Info" button.

    The sdp.cry file is saved in the downloads.

    Enable remote maintenance
    1Click on the "Enable remote maintenance" button.

    Remote maintenance access for the Fronius Support team is enabled.

    IMPORTANT!
    Remote maintenance access gives Fronius Technical Support exclusive access to the inverter via a secure connection. Diagnostic data is transmitted here that can be used for troubleshooting purposes. Only enable remote maintenance access following a request from the Fronius Support team.

    Communication

    Network

    Server addresses for data transfer
    If a firewall is used for outgoing connections, the following protocols, server addresses and ports must be allowed for successful data transfer:
    • Tcp fronius-se-iot.azure-devices.net:8883
    • Tcp fronius-se-iot-telemetry.azure-devices.net:8883
    • Tcp fronius-se-iot-telemetry.azure-devices.net:443
    • Udp sera-gen24.fronius.com:1194 (213.33.117.120:1194)
    • Tcp froniusseiot.blob.core.windows.net:443
    • Tcp provisioning.solarweb.com:443
    • Tcp cure-se.fronius.com:443

    When using FRITZ!Box products, the Internet access must be configured to be unlimited and unrestricted.

    LAN:

    1Enter host name.
    2Select connection type "automatic" or "static".
    3For connection type "static" - enter IP address, subnet mask, DNS and gateway.
    4Click on the "Connect" button.

    The connection is established.

    WLAN:

    Establishing a connection via WPS:
    1Click the "Enable" button.
    2Activate WPS on the WLAN router (see documentation provided with the WLAN router).

    The connection is established automatically.

    Select and connect WLAN network:
    The networks found are shown in the list. Clicking on the refresh button    will carry out a second search of the available WLAN networks. The "Find network" input field can be used to further restrict the selection list.
    1Select network from the list.
    2Select connection type "automatic" or "static".
    3For connection type "automatic" - enter WLAN password and host name.
    4For connection type "static" - enter IP address, subnet mask, DNS and gateway.
    5Click on the "Connect" button.

    The connection is established.

    Access point:

    The inverter acts as the access point. A PC or smart device connects directly with the inverter. It is not possible to connect to the internet. The "Network name (SSID)" and "Network key (PSK)" can be assigned in this menu.
    It is possible to operate a connection via WLAN and via access point simultaneously.

    Network

    Server addresses for data transfer
    If a firewall is used for outgoing connections, the following protocols, server addresses and ports must be allowed for successful data transfer:
    • Tcp fronius-se-iot.azure-devices.net:8883
    • Tcp fronius-se-iot-telemetry.azure-devices.net:8883
    • Tcp fronius-se-iot-telemetry.azure-devices.net:443
    • Udp sera-gen24.fronius.com:1194 (213.33.117.120:1194)
    • Tcp froniusseiot.blob.core.windows.net:443
    • Tcp provisioning.solarweb.com:443
    • Tcp cure-se.fronius.com:443

    When using FRITZ!Box products, the Internet access must be configured to be unlimited and unrestricted.

    LAN:

    1Enter host name.
    2Select connection type "automatic" or "static".
    3For connection type "static" - enter IP address, subnet mask, DNS and gateway.
    4Click on the "Connect" button.

    The connection is established.

    WLAN:

    Establishing a connection via WPS:
    1Click the "Enable" button.
    2Activate WPS on the WLAN router (see documentation provided with the WLAN router).

    The connection is established automatically.

    Select and connect WLAN network:
    The networks found are shown in the list. Clicking on the refresh button    will carry out a second search of the available WLAN networks. The "Find network" input field can be used to further restrict the selection list.
    1Select network from the list.
    2Select connection type "automatic" or "static".
    3For connection type "automatic" - enter WLAN password and host name.
    4For connection type "static" - enter IP address, subnet mask, DNS and gateway.
    5Click on the "Connect" button.

    The connection is established.

    Access point:

    The inverter acts as the access point. A PC or smart device connects directly with the inverter. It is not possible to connect to the internet. The "Network name (SSID)" and "Network key (PSK)" can be assigned in this menu.
    It is possible to operate a connection via WLAN and via access point simultaneously.

    Modbus

    Modbus RTU interface 0 / 1
    If one of the two Modbus RTU interfaces is set to Slave, the following input fields are available:

    "Baud rate"
    The baud rate influences the transmission speed between the individual components connected in the system. When selecting the baud rate, ensure that it is the same at both the sending and receiving end.

    "Parity"
    The parity bit can be used to check the parity. It detects transmission errors. A parity bit can safeguard a specific number of bits. The value (0 or 1) of the parity bit must be calculated by the sender and is checked by the recipient using the same calculation. The parity bit can be calculated for even and odd parity.

    "SunSpec Model Type"
    Depending on the SunSpec model, there are two different settings.

    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. Can be found on the user interface of the inverter in the Communication - Modbus menu.
    Factory setting: 200

    "Inverter address"
    The value entered is the identification number
    (Unit ID) assigned to the inverter. Can be found on the user interface of the inverter in the Communication - Modbus menu.
    Factory setting: 1

    Slave as Modbus TCP
    If the function "Slave as Modbus TCP" is activated, the following input fields are available:

    "Modbus port"
    Number of the TCP port that is to be used for Modbus communication.

    "SunSpec Model Type"
    Depending on the SunSpec model, there are two different settings.

    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.
    Can be found on the user interface of the inverter in the Communication - Modbus menu.
    Factory setting: 200

    "Inverter address"
    The value entered is the identification number (Unit ID) assigned to the inverter. Can be found on the user interface of the inverter in the Communication - Modbus menu.
    Factory setting: This value is invariably defined as 1.

    Inverter control via Modbus
    If this option is activated, the inverter is controlled via Modbus.
    Inverter control includes the following functions:
    • On/Off
    • Power reduction
    • Specification of a constant power factor (cos phi)
    • Specification of a constant reactive power value
    • Battery control specifications with battery

    Fronius Solar API

    The Fronius Solar API is an Ethernet-based, open JSON interface. When enabled, IOT devices on the local network can access inverter information without authentication. For security reasons, the interface is deactivated at the factory and should not be activated if it is not required for a third-party application (e.g. EV charger, smart home solutions, etc.).

    For monitoring, Fronius recommends using Fronius Solar.web instead, which provides secure access to inverter status and production information.

    When performing a firmware update to version 1.14.x, the setting (activated/deactivated) of the Fronius Solar API is adopted.

    Safety and grid requirements

    Country setup

    The "Country Setup" menu area is intended exclusively for installers/service technicians from authorised specialist companies. The access code must be requested from the national/international Fronius point of contact using an application form.

    CAUTION!

    Risk due to unauthorised access.

    Incorrectly set parameters can negatively influence the public grid and/or the inverter feeding energy into the grid, and lead to a loss of conformity with the standard.

    The parameters may only be adjusted by installers/service technicians from authorised specialist companies.

    Do not give the access code to third parties and/or unauthorised persons.

    WARNING!

    Danger due to unauthorised error analyses and repair work.

    This can result in serious injury and damage to property.

    Fault analyses and repair work on the photovoltaic system may only be carried out by installers/service technicians from authorized specialist companies in accordance with national standards and guidelines.

    The selected country setup for the respective country contains preset parameters according to the nationally applicable standards and requirements. Depending on local grid conditions and the specifications of the energy provider, adjustments to the selected country setup may be necessary.

    CAUTION!

    Risk due to incorrectly set parameters.

    Incorrectly set parameters can negatively influence the public grid and/or cause faults and failures on the inverter, and lead to the loss of standard conformity.

    The parameters may only be adjusted by installers/service technicians from authorised specialist companies.

    The parameters may only be adjusted if the energy provider permits or requires this.

    Only adjust the parameters taking into account the nationally applicable standards and/or directives and the specifications of the energy provider.

    Country setup

    The "Country Setup" menu area is intended exclusively for installers/service technicians from authorised specialist companies. The access code must be requested from the national/international Fronius point of contact using an application form.

    CAUTION!

    Risk due to unauthorised access.

    Incorrectly set parameters can negatively influence the public grid and/or the inverter feeding energy into the grid, and lead to a loss of conformity with the standard.

    The parameters may only be adjusted by installers/service technicians from authorised specialist companies.

    Do not give the access code to third parties and/or unauthorised persons.

    WARNING!

    Danger due to unauthorised error analyses and repair work.

    This can result in serious injury and damage to property.

    Fault analyses and repair work on the photovoltaic system may only be carried out by installers/service technicians from authorized specialist companies in accordance with national standards and guidelines.

    The selected country setup for the respective country contains preset parameters according to the nationally applicable standards and requirements. Depending on local grid conditions and the specifications of the energy provider, adjustments to the selected country setup may be necessary.

    CAUTION!

    Risk due to incorrectly set parameters.

    Incorrectly set parameters can negatively influence the public grid and/or cause faults and failures on the inverter, and lead to the loss of standard conformity.

    The parameters may only be adjusted by installers/service technicians from authorised specialist companies.

    The parameters may only be adjusted if the energy provider permits or requires this.

    Only adjust the parameters taking into account the nationally applicable standards and/or directives and the specifications of the energy provider.

    Feed-in limitation

    Energy companies or grid operators may stipulate feed-in limitations for an inverter (e.g. max. 70% of kWp or max. 5 kW).
    The feed-in limitation takes account of self-consumption by the household before the power of an inverter is reduced:

    • A custom limit can be set.
    • A Fronius Smart Meter can be connected to the Modbus push-in terminal of the data communication area at the connections M0/M1- / M0/M1+ for Modbus data.

    With the inverter, any PV power that is not allowed to be fed into the public grid is used to charge the battery instead and/or used by the Fronius Ohmpilot so that it does not go to waste. The feed-in limitation is only active if the power of feeding in is higher than the set power reduction.

    "Off"
    The inverter converts the entire available PV power and feeds it into the public grid.

    "Limit for entire system"
    The entire photovoltaic system is limited in accordance with a set power limit. The value of the permissible total feed-in power must be set.

    "Limit per 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 (see example below). This setting is only necessary if required by national standards and regulations. The value of the permissible power of feeding in per phase must be set.

    Example: "Limit per phase" (setting value: 2000 W)

     

    Phase 1

    Phase 2

    Phase 3

    Total

    Max. possible production [W]

    2000

    2000

    2000

    6000

    Set value
    "Limit per phase" [W]

    1000

    3000

    Load demand in the household network [W]

    2000

    3000

    5000

    10000

    Load coverage in the household network via PV system [W]

    1000

    3000

    Purchase from the public grid [W]

    1000

    2000

    4000

    7000

    "Total DC system power"
    Input field for the total DC system power in Wp.
    This value is used if the "Maximum permitted feed-in power of the entire system" is specified in %.

    "Maximum permitted feed-in power of the entire system"
    Input field for the "Maximum permitted feed-in power of the entire system" 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 feed-in power to the set value.

    Example: Feed-in limitation
    (without consideration of the efficiency)

    PV system to Fronius inverter

    5000 W

    Loads in the house

    1000 W

    Maximum permitted feed-in power of the entire system

    60% = 3000 W

     

     

    Case 1: The battery can be charged

    Power at grid feed-in point

    0 W

    Power at inverter output

    1000 W

    Power into the battery

    3000 W

     

     

    Case 2: The battery cannot be charged

    Power at grid feed-in point

    3000 W

    Power at inverter output

    4000 W

    Power into the battery

    0 W

    In this example, no more than 3000 W may be fed into the public grid at the grid feed-in point. However, any loads that are located between the inverter and the grid feed-in point can be supplied by additional power from the inverter.

    "Hard Limit"
    If this value is exceeded, the inverter switches off within max. 5 seconds. This value must be higher than the value set for "Soft Limit".

    "Soft Limit"
    If this value is exceeded, the inverter will regulate down to the set value within the time required by national standards and regulations.

    Dynamic power regulation with several inverters

    Example 1: Fronius SnapINverter ≤ Fronius Symo GEN24
    Only one primary meter is required for the Fronius Symo GEN24 inverter.

    The power values shown are an example. Inverter configurations with power values other than those shown in the example are possible, taking into account the criteria for this example.

    IMPORTANT!
    Zero feed-in is not possible when using 2 inverters.

    Settings on the user interface of the Fronius Symo GEN24 inverter:
    1Configure the primary meter at the feed-in point in the "Device configuration" → "Components" menu.
    2Activate the limit for the entire system in the "Safety and grid regulations" → "Export limitation" menu. Enter the DC rated power of the entire PV system in the "Total DC system power" input field. Enter the percentage value (50%, 60% or 70%) in the "Maximum permitted feed-in power of the entire system" input field.

    Example 2a: Fronius SnapINverter > Fronius Symo GEN24
    Two primary meters are required for the inverters.

    The power values shown are an example. Inverter configurations with power values other than those shown in the example are possible, taking into account the criteria for this example.

    IMPORTANT!
    With two primary meters at the feed-in point without a secondary meter, Fronius SnapINverter and Fronius Symo GEN24 inverters cannot be displayed as a combined PV system in Solar.web. Two individual PV systems must be created in Solar.web.

    Settings on the user interface of the Fronius Symo GEN24 inverter:
    1Configure the primary meter at the feed-in point in the "Device configuration" → "Components" menu.
    Settings in the system monitoring of the Fronius SnapInverter:
    1Configure the primary meter at the feed-in point in the "Settings" → "Meter" menu.
    2Activate the limit for the entire system in the "DNO Editor" → "Dynamic power reduction" menu. Enter the DC rated power of the entire PV system in the "Total DC system power" input field. Enter the percentage value (50%, 60% or 70%) in the "Max. grid feed-in power" input field.

    Example 2b: Fronius SnapINverter > Fronius Symo GEN24
    Two primary meters and one secondary meter are required for the inverters.

    The power values shown are an example. Inverter configurations with power values other than those shown in the example are possible, taking into account the criteria for this example.

    IMPORTANT!
    In order to be able to record all PV system data in Solar.web in full, only the Fronius Symo GEN24 inverter may be created in this PV system. The Fronius SnapINverter data is transmitted from the secondary meter to the Fronius Symo GEN24 inverter and thus displayed in Solar.web.
    We recommend that you set up the Fronius SnapINverter as a separate additional PV system in Solar.web for servicing and maintenance work (e.g. status codes, online updates, etc.).

    Settings on the user interface of the Fronius Symo GEN24 inverter:
    1Configure the primary meter at the feed-in point in the "Device configuration" → "Components" menu.
    2Configure the secondary meter in the "Device configuration" → "Components" menu.
    Settings in the system monitoring of the Fronius SnapInverter:
    1Configure the primary meter at the feed-in point in the "Settings" → "Meter" menu.
    2Activate the limit for the entire system in the "DNO Editor" → "Dynamic power reduction" menu. Enter the DC rated power of the entire PV system in the "Total DC system power" input field. Enter the percentage value (50%, 60% or 70%) in the "Max. grid feed-in power" input field.

    I/O power management

    General
    In this menu item, settings relevant for an electricity company (DNO) are made. An effective power limitation in % and/or a power factor limitation can be set.

    IMPORTANT!
    The service password must be entered in order to adjust settings in this menu item. Settings in this menu area must 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 x clicks = grey (not used)

    "Power factor (cos φ)"
    "ind" = inductive
    "cap" = capacitive

    "DNO feedback"
    when the rule is enabled, output “DNO feedback” (pin 1 recommended) must be configured (e.g. for operating a signalling device).

    For "Import" or "Export", the data format *.fpc is supported.

    Control priorities
    For setting the control priorities for the ripple control signal receiver, the feed-in limitation and control via Modbus.

    1 = highest priority, 3 = lowest priority

    Connection diagram - 4 relay

    The ripple control signal receiver and the I/Os terminal of the inverter can be connected to one another in accordance with the connection diagram.
    If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).

    (1)
    Ripple control signal receiver with 4 relays, for effective power limiting.
    (2)
    I/Os of the data communication area.
    Use the preconfigured file for 4-relay mode:
    1Download the file (.fpc) under 4-relay mode onto the end device.
    2Upload the file (.fpc) in the "I/O Power Management" menu using the "Import" button.
    3Click on the "Save" button.

    The settings for 4-relay mode are stored.

    I/O power management settings - 4 relays

    Connection diagram - 3 relay

    The ripple control signal receiver and the I/Os terminal of the inverter can be connected to one another in accordance with the connection diagram.
    If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).

    (1)
    Ripple control signal receiver with 3 relays, for effective power limiting.
    (2)
    I/Os of the data communication area.
    Use the preconfigured file for 3-relay mode:
    1Download the file (.fpc) under 3-relay mode onto the end device.
    2Upload the file (.fpc) in the "I/O Power Management" menu using the "Import" button.
    3Click on the "Save" button.

    The settings for 3-relay mode are stored.

    I/O power management settings - 3 relays

    Connection diagram - 2 relay

    The ripple control signal receiver and the I/Os terminal of the inverter can be connected to one another in accordance with the connection diagram.
    If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).

    (1)
    Ripple control signal receiver with 2 relays, for effective power limiting.
    (2)
    I/Os of the data communication area.
    Use the preconfigured file for 2-relay mode:
    1Download the file (.fpc) under 2-relay mode onto the end device.
    2Upload the file (.fpc) in the "I/O Power Management" menu using the "Import" button.
    3Click on the "Save" button.

    The settings for 2-relay mode are stored.

    I/O power management settings - 2 relays

    Connection diagram - 1 relay

    The ripple control signal receiver and the I/Os terminal of the inverter can be connected to one another in accordance with the connection diagram.
    If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).

    (1)
    Ripple control signal receiver with 1 relay, for effective power limiting.
    (2)
    I/Os of the data communication area.
    Use the preconfigured file for 1-relay mode:
    1Download the file (.fpc) under 1-relay mode onto the end device.
    2Upload the file (.fpc) in the "I/O Power Management" menu using the "Import" button.
    3Click on the "Save" button.

    The settings for 1-relay mode are stored.

    I/O power management settings - 1 relay

    Autotest
    (CEI 0-21)

    Description
    The "Autotest" can be used to check the protection function required by Italian standards for monitoring the voltage and frequency limit values of the inverter during commissioning. In normal operation, the inverter constantly checks the current voltage and frequency actual value of the grid.
    After starting the autotest, various individual tests run automatically one after the other. Depending on network conditions, the duration of the test is about 15 minutes.

    IMPORTANT!
    The inverter may only be commissioned in Italy after an autotest has been successfully performed (CEI 0-21). If the autotest is not passed, feeding energy into the grid is not permitted. Once the autotest is started, it must be completed successfully. The autotest cannot be started during backup power operation.

    U max

    Test for checking the maximum voltage in phase conductors

    U min

    Test for checking the minimum voltage in phase conductors

    f max

    Test for checking the maximum grid frequency

    f min

    Test for checking the minimum grid frequency

    f max alt

    Test for checking an alternative maximum grid frequency

    f min alt

    Test for checking an alternative minimum grid frequency

    U outer min

    Test for checking the minimum external voltages

    U longT.

    Test for checking the 10-minute mean voltage value

    Save as PDF
    1Click on the "Save as PDF" button.
    2Enter the file name in the input field and click on the "Print" button.

    The PDF is created and displayed.

    Note on the autotest
    The limit values are set in the "Grid Code" menu.
    The access code for the "Grid Code" menu corresponds to the installer code (PROFI menu) and is only made available after a written request to Fronius. A corresponding application form is available from the national technical support.

    Options

    Surge protective device (SPD)

    General

    A surge protective device (SPD) protects against temporary overvoltages and dissipates surge currents (e.g. lightning strike). Building on an overall lightning protection concept, the SPD helps to protect your PV system components.
    For detailed information on the wiring diagram of the surge protective device, see chapter Wiring diagram - surge protective device SPD on page (→).

    If the surge protective device is triggered, the colour of the indicator changes from green to red (mechanical display) and the operation 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 or in the user menu under "Notifications" as well as in Fronius Solar.web. In this case, the inverter must be repaired by an authorised specialist.

    IMPORTANT!
    The inverter also switches off if the 2-pin signal cable of the surge protective device is interrupted or damaged.

    Surge protective device (SPD)

    General

    A surge protective device (SPD) protects against temporary overvoltages and dissipates surge currents (e.g. lightning strike). Building on an overall lightning protection concept, the SPD helps to protect your PV system components.
    For detailed information on the wiring diagram of the surge protective device, see chapter Wiring diagram - surge protective device SPD on page (→).

    If the surge protective device is triggered, the colour of the indicator changes from green to red (mechanical display) and the operation 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 or in the user menu under "Notifications" as well as in Fronius Solar.web. In this case, the inverter must be repaired by an authorised specialist.

    IMPORTANT!
    The inverter also switches off if the 2-pin signal cable of the surge protective device is interrupted or damaged.

    General

    A surge protective device (SPD) protects against temporary overvoltages and dissipates surge currents (e.g. lightning strike). Building on an overall lightning protection concept, the SPD helps to protect your PV system components.
    For detailed information on the wiring diagram of the surge protective device, see chapter Wiring diagram - surge protective device SPD on page (→).

    If the surge protective device is triggered, the colour of the indicator changes from green to red (mechanical display) and the operation 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 or in the user menu under "Notifications" as well as in Fronius Solar.web. In this case, the inverter must be repaired by an authorised specialist.

    IMPORTANT!
    The inverter also switches off if the 2-pin signal cable of the surge protective device is interrupted or damaged.

    Scope of supply

    The surge protective device (SPD) is an optional extra and can be retrofitted to the inverter.

    For technical data, see chapter "Technical data" on page (→).

    1. PC board
    2. 4 TX20 screws
    3. Ground conductor
    4. 2-pin signal cable
    5. PV cable
    6. PV+ cable
    7. User Information

    De-energising the inverter

    WARNING!

    Danger due to electrical voltage on live parts of the photovoltaic system.

    An electric shock can be fatal.

    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-energised 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 a surge protective device (SPD) 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

    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).

    Installation

    CAUTION!

    Risk 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 labelling 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 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 Permitted cables 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!
    When inserting the connection area divider, be careful not to kink, pinch, crush or otherwise damage the ground conductor.

    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 labelling.

    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).

    Commissioning 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. Switch on the automatic circuit breaker.

    Appendix

    Care, maintenance and disposal

    General

    The inverter is designed in such a way that no additional maintenance work builds up. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.

    Care, maintenance and disposal

    General

    The inverter is designed in such a way that no additional maintenance work builds up. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.

    General

    The inverter is designed in such a way that no additional maintenance work builds up. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.

    Maintenance

    Maintenance and servicing may only be carried out by Fronius-trained service technicians.

    Cleaning

    Clean the inverter as required with a damp cloth.
    Do not use cleaning agents, abrasives solvents or similar to clean the inverter.

    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 grid voltage and DC voltage from solar modules.

    An electric shock can be fatal.

    The connection area must only be opened by an authorised electrician.

    The separate power stage set area must only be opened by Fronius-trained service technicians.

    Prior to any connection work, disconnect the inverter on the AC side and the DC side.

    WARNING!

    Danger of residual voltage from capacitors.

    An electric shock can be fatal.

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

    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 specified time (2 minutes) until the capacitors have discharged and the fan has shut down.
    Turn the DC disconnector to the "Off" switch position.

    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 from improper cleaning.

    Excessive speed and pressure on the fan bearing can cause damage.

    Block the fan and clean it with compressed air.

    When using a cloth or brush, clean the fan without applying pressure to the fan.

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

    Disposal

    Waste electrical and electronic equipment must be collected separately and recycled in an environmentally-friendly way, in accordance with the European Directive and national legislation. Used equipment must be returned to the distributor or disposed of via an approved local collection and disposal facility. Correct disposal of used equipment promotes the sustainable recycling of material resources. Failing to dispose of used equipment correctly can lead to adverse health and/or environmental impacts.

    Packaging materials
    Separate collection according to material. Check your local authority regulations. Crush containers to reduce size.

    Guarantee provisions

    Fronius manufacturer's warranty

    Detailed, country-specific warranty terms are available on the internet:
    www.fronius.com/solar/warranty

    To obtain the full warranty period for your newly installed Fronius inverter or storage system, please register at: www.solarweb.com.

    Fronius manufacturer's warranty

    Detailed, country-specific warranty terms are available on the internet:
    www.fronius.com/solar/warranty

    To obtain the full warranty period for your newly installed Fronius inverter or storage system, please register at: www.solarweb.com.

    Components for automatic Full Backup backup power changeover

    Components for automatic Full Backup backup power changeover

    Device name

    Current converter

    Item number

    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 480 V­­­­­-3 UL

    43,0001,3530

    Grid and system protection unit (fuse protection: 3-pin, 6 A)
    Other manufacturers and types are permissible if they are technically and functionally identical to the examples below:
    • VMD460-NA-D-2 (Bender GmbH & Co. KG)
    • RE-NA003-M64 (Tele Haase Steuergeräte Ges.m.b.H.)

    K1 and K2 - installation contactor with auxiliary contact

    Number of pins

    3-pin or 4-pin
    (depending on the cabling variant)

    Rated current

    depends on house connection

    Coil voltage

    230 V AC

    Rated frequency

    50/60 Hz

    Coil fuse

    6 A

    Min. short circuit current

    3 kA (make 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

    Examples of contactors and relays

    ISKRA IK63-40 / Schrack BZ326461

    K3 - modular relay

    Number of changeover contacts

    2

    Coil voltage

    12 V DC

    Test standard

    IEC 60947-4-1

    Examples of contactors and relays

    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 (make contacts)

    Test standard

    IEC 60947-4-1

    Examples of contactors and relays

    ISKRA IKA225-02

    Components for automatic Full Backup backup power changeover

    Device name

    Current converter

    Item number

    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 480 V­­­­­-3 UL

    43,0001,3530

    Grid and system protection unit (fuse protection: 3-pin, 6 A)
    Other manufacturers and types are permissible if they are technically and functionally identical to the examples below:
    • VMD460-NA-D-2 (Bender GmbH & Co. KG)
    • RE-NA003-M64 (Tele Haase Steuergeräte Ges.m.b.H.)

    K1 and K2 - installation contactor with auxiliary contact

    Number of pins

    3-pin or 4-pin
    (depending on the cabling variant)

    Rated current

    depends on house connection

    Coil voltage

    230 V AC

    Rated frequency

    50/60 Hz

    Coil fuse

    6 A

    Min. short circuit current

    3 kA (make 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

    Examples of contactors and relays

    ISKRA IK63-40 / Schrack BZ326461

    K3 - modular relay

    Number of changeover contacts

    2

    Coil voltage

    12 V DC

    Test standard

    IEC 60947-4-1

    Examples of contactors and relays

    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 (make contacts)

    Test standard

    IEC 60947-4-1

    Examples of contactors and relays

    ISKRA IKA225-02

    Status codes and remedy

    Display

    Status codes are displayed on the user interface of the inverter in the "System" → "Event Log" menu or in the user menu under "Notifications" or in Fronius Solar.web*.

    *
    with corresponding configuration, see chapter Fronius Solar.web on page (→).

    Display

    Status codes are displayed on the user interface of the inverter in the "System" → "Event Log" menu or in the user menu under "Notifications" or in Fronius Solar.web*.

    *
    with corresponding configuration, see chapter Fronius Solar.web on page (→).

    Status Codes

    1030 - WSD Open (operation LED: lights up red)
    Cause:A device connected in the WSD chain has interrupted the signal line (e.g. a surge protective device) or the bypass ex works has been removed and no trigger device has been installed.
    Remedy:If the SPD surge protective device is triggered, the inverter must be repaired by an authorised specialist.
    OR:Install the bypass ex works or a trigger device.
    OR:Set the WSD (wired shutdown) switch to position 1 (WSD primary 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 a surge protective device (SPD) 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.

    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 of PV modules (ISC PV)
    PV 1
    PV 2



    37.5 A
    18.75 A

    Max. short circuit current
    (ISC PV1 + ISC PV2 = ISC max)
    Total



    56.25 A

    Max. inverter backfeed current to the array 3)

    37.5 A

    Number of inputs - PV 1

    2

    Number of inputs - PV 2

    1

    Max. capacity of the PV generator against earth

    1200 nF

    Insulation resistance test limit value between PV generator and earth (on delivery) 10)

    100 kΩ

    Adjustable range of insulation resistance test between PV generator and earth 9)

    10 - 10000 kΩ

    Limit value and tripping time of the sudden residual current monitoring (on delivery)

    30 / 300 mA / ms
    60 / 150 mA / ms
    90 / 40 mA / ms

    Limit value and tripping time of the continuous residual 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)

    24h

    Adjustable range for the cyclic repetition of the insulation resistance test

    -

    DC input data battery 8)

    Max. voltage

    531 V / 700 V *

    * only with suitable disconnection device between inverter and battery in the event of a fault

    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 W

    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

    Nominal output current (at 230 V)

    8.7 A

    Current (inrush) 6)

    9.9 A / 4 ms

    Nominal frequency

    50 / 60 Hz 1)

    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 mains impedance Zmax at PCC 4)

    None

    Maximum output fault current / duration

    80.7 A / 10 ms

    AC output data PV Point

    Max. output power

    4133 W (for 5 s)

    Rated power

    3000 W

    Nominal output current

    13 A

    Nominal mains voltage

    1 ~ NPE 220 V / 230 V / 240 V

    Nominal frequency

    53 / 63 Hz 1)

    Switchover time

    < 90 s

    Power factor cos phi 2)

    0 - 1

    AC output data Full Backup 8)

    Max. output power

    12400 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

    Nominal 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)

    Switchover time

    < 90 s

    Power factor cos phi 2)

    0 - 1

    General data

    Maximum efficiency

    98.2%

    European efficiency (Umpp nom)

    97.7%

    European efficiency (Umpp max)

    97.3%

    European efficiency (Umpp min)

    96.5%

    Self-consumption at night

    ≤ 10 W

    Cooling

    Controlled forced-air ventilation

    Protection class

    IP 66

    Dimensions H x W x D

    595 × 529 × 180 mm

    Weight

    24 kg

    Inverter topology

    Non-insulated transformerless

    Permitted ambient temperature

    -25 °C - +60 °C

    Permissible humidity

    0–100% (incl. condensation)

    EMC emission class

    B

    DC/AC overvoltage category
    (in accordance with IEC 62109-1)

    2 / 3

    Pollution degree

    2

    Sound pressure

    47 dB(A)

    Safety class (according to IEC62103)

    1

    Protection devices

    DC isolation measurement

    Warning / shutdown at RISO < 100 kOHM

    Overload performance

    Operating point shift, power limiter

    DC disconnector

    Integrated

    RCMU

    Integrated

    Active anti-islanding method

    Frequency conversion 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 (for internal supply)

    6 W at 12 V (USB not connected)

    Power per digital output
    (for external supply)

    1 A at >12.5 V-24 V
    (max. 3 A in total)

    Datalogger/web server

    Integrated

    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 of PV modules (ISC PV)
    PV 1
    PV 2



    37.5 A
    18.75 A

    Max. short circuit current
    (ISC PV1 + ISC PV2 = ISC max)
    Total



    56.25 A

    Max. inverter backfeed current to the array 3)

    37.5 A

    Number of inputs - PV 1

    2

    Number of inputs - PV 2

    1

    Max. capacity of the PV generator against earth

    1200 nF

    Insulation resistance test limit value between PV generator and earth (on delivery) 10)

    100 kΩ

    Adjustable range of insulation resistance test between PV generator and earth 9)

    10 - 10000 kΩ

    Limit value and tripping time of the sudden residual current monitoring (on delivery)

    30 / 300 mA / ms
    60 / 150 mA / ms
    90 / 40 mA / ms

    Limit value and tripping time of the continuous residual 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)

    24h

    Adjustable range for the cyclic repetition of the insulation resistance test

    -

    DC input data battery 8)

    Max. voltage

    531 V / 700 V *

    * only with suitable disconnection device between inverter and battery in the event of a fault

    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 W

    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

    Nominal output current (at 230 V)

    8.7 A

    Current (inrush) 6)

    9.9 A / 4 ms

    Nominal frequency

    50 / 60 Hz 1)

    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 mains impedance Zmax at PCC 4)

    None

    Maximum output fault current / duration

    80.7 A / 10 ms

    AC output data PV Point

    Max. output power

    4133 W (for 5 s)

    Rated power

    3000 W

    Nominal output current

    13 A

    Nominal mains voltage

    1 ~ NPE 220 V / 230 V / 240 V

    Nominal frequency

    53 / 63 Hz 1)

    Switchover time

    < 90 s

    Power factor cos phi 2)

    0 - 1

    AC output data Full Backup 8)

    Max. output power

    12400 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

    Nominal 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)

    Switchover time

    < 90 s

    Power factor cos phi 2)

    0 - 1

    General data

    Maximum efficiency

    98.2%

    European efficiency (Umpp nom)

    97.7%

    European efficiency (Umpp max)

    97.3%

    European efficiency (Umpp min)

    96.5%

    Self-consumption at night

    ≤ 10 W

    Cooling

    Controlled forced-air ventilation

    Protection class

    IP 66

    Dimensions H x W x D

    595 × 529 × 180 mm

    Weight

    24 kg

    Inverter topology

    Non-insulated transformerless

    Permitted ambient temperature

    -25 °C - +60 °C

    Permissible humidity

    0–100% (incl. condensation)

    EMC emission class

    B

    DC/AC overvoltage category
    (in accordance with IEC 62109-1)

    2 / 3

    Pollution degree

    2

    Sound pressure

    47 dB(A)

    Safety class (according to IEC62103)

    1

    Protection devices

    DC isolation measurement

    Warning / shutdown at RISO < 100 kOHM

    Overload performance

    Operating point shift, power limiter

    DC disconnector

    Integrated

    RCMU

    Integrated

    Active anti-islanding method

    Frequency conversion 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 (for internal supply)

    6 W at 12 V (USB not connected)

    Power per digital output
    (for external supply)

    1 A at >12.5 V-24 V
    (max. 3 A in total)

    Datalogger/web server

    Integrated

    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


    12000 Wp
    10000 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 of PV modules (ISC PV)
    PV 1
    PV 2



    37.5 A
    18.75 A

    Max. short circuit current
    (ISC PV1 + ISC PV2 = ISC max)
    Total



    56.25 A

    Max. inverter backfeed current to the array 3)

    37.5 A

    Number of inputs - PV 1

    2

    Number of inputs - PV 2

    1

    Max. capacity of the PV generator against earth

    1600 nF

    Insulation resistance test limit value between PV generator and earth (on delivery) 10)

    100 kΩ

    Adjustable range of insulation resistance test between PV generator and earth 9)

    10 - 10000 kΩ

    Limit value and tripping time of the sudden residual current monitoring (on delivery)

    30 / 300 mA / ms
    60 / 150 mA / ms
    90 / 40 mA / ms

    Limit value and tripping time of the continuous residual 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)

    24h

    Adjustable range for the cyclic repetition of the insulation resistance test

    -

    DC input data battery 8)

    Max. voltage

    531 V / 700 V *

    * only with suitable disconnection device between inverter and battery in the event of a fault

    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 W

    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

    Nominal output current (at 230 V)

    11.6 A

    Current (inrush) 6)

    9.9 A / 4 ms

    Nominal frequency

    50 / 60 Hz 1)

    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 mains impedance Zmax at PCC 4)

    None

    Maximum output fault current / duration

    80.7 A / 10 ms

    AC output data PV Point

    Max. output power

    4133 W (for 5 s)

    Rated power

    3000 W

    Nominal output current

    13 A

    Nominal mains voltage

    1 ~ NPE 220 V / 230 V / 240 V

    Nominal frequency

    53 / 63 Hz 1)

    Switchover time

    < 90 s

    Power factor cos phi 2)

    0 - 1

    AC output data Full Backup 8)

    Max. output power

    12400 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

    Nominal 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)

    Switchover time

    < 90 s

    Power factor cos phi 2)

    0 - 1

    General data

    Maximum efficiency

    98.2%

    European efficiency (Umpp nom)

    97.8%

    European efficiency (Umpp max)

    97.5%

    European efficiency (Umpp min)

    96.9%

    Self-consumption at night

    ≤ 10 W

    Cooling

    Controlled forced-air ventilation

    Protection class

    IP 66

    Dimensions H x W x D

    595 × 529 × 180 mm

    Weight

    24 kg

    Inverter topology

    Non-insulated transformerless

    Permitted ambient temperature

    -25 °C - +60 °C

    Permissible humidity

    0–100% (incl. condensation)

    EMC emission class

    B

    DC/AC overvoltage category
    (in accordance with IEC 62109-1)

    2 / 3

    Pollution degree

    2

    Sound pressure

    47 dB(A)

    Safety class (according to IEC62103)

    1

    Protection devices

    DC isolation measurement

    Warning / shutdown at RISO < 100 kOHM

    Overload performance

    Operating point shift, power limiter

    DC disconnector

    Integrated

    RCMU

    Integrated

    Active anti-islanding method

    Frequency conversion 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 (for internal supply)

    6 W at 12 V (USB not connected)

    Power per digital output
    (for external supply)

    1 A at >12.5 V-24 V
    (max. 3 A in total)

    Datalogger/web server

    Integrated

    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


    15000 Wp
    12500 Wp
    7500 Wp

    Max. processable PV power
    Total
    PV 1
    PV 2


    10300 Wp
    10300 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 of PV modules (ISC PV)
    PV 1
    PV 2



    37.5 A
    18.75 A

    Max. short circuit current
    (ISC PV1 + ISC PV2 = ISC max)
    Total



    56.25 A

    Max. inverter backfeed current to the array 3)

    37.5 A

    Number of inputs - PV 1

    2

    Number of inputs - PV 2

    1

    Max. capacity of the PV generator against earth

    2000 nF

    Insulation resistance test limit value between PV generator and earth (on delivery) 10)

    100 kΩ

    Adjustable range of insulation resistance test between PV generator and earth 9)

    10 - 10000 kΩ

    Limit value and tripping time of the sudden residual current monitoring (on delivery)

    30 / 300 mA / ms
    60 / 150 mA / ms
    90 / 40 mA / ms

    Limit value and tripping time of the continuous residual 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)

    24h

    Adjustable range for the cyclic repetition of the insulation resistance test

    -

    DC input data battery 8)

    Max. voltage

    531 V / 700 V *

    * only with suitable disconnection device between inverter and battery in the event of a fault

    Min. voltage

    160 V

    Max. current

    22 A

    Max. output

    10000 W

    DC inputs

    1

    AC input/output data

    Rated power (Pnom)

    10000 W

    Max. output power

    10000 W

    Rated apparent power

    10000 W

    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

    Nominal output current (at 230 V)

    14.5 A

    Current (inrush) 6)

    9.9 A / 4 ms

    Nominal frequency

    50 / 60 Hz 1)

    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 mains impedance Zmax at PCC 4)

    None

    Maximum output fault current / duration

    80.7 A / 10 ms

    AC output data PV Point

    Max. output power

    4133 W (for 5 s)

    Rated power

    3000 W

    Nominal output current

    13 A

    Nominal mains voltage

    1 ~ NPE 220 V / 230 V / 240 V

    Nominal frequency

    53 / 63 Hz 1)

    Switchover time

    < 90 s

    Power factor cos phi 2)

    0 - 1

    AC output data Full Backup 8)

    Max. output power

    12400 W (for 5 s)

    Max. output power (per phase)

    4133 W (for 5 s)

    Rated power

    10000 W

    Rated power (per phase) 7)

    3680 W

    Nominal 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)

    Switchover time

    < 90 s

    Power factor cos phi 2)

    0 - 1

    General data

    Maximum efficiency

    98.2%

    European efficiency (Umpp nom)

    97.9%

    European efficiency (Umpp max)

    97.7%

    European efficiency (Umpp min)

    97.1%

    Self-consumption at night

    ≤ 10 W

    Cooling

    Controlled forced-air ventilation

    Protection class

    IP 66

    Dimensions H x W x D

    595 × 529 × 180 mm

    Weight

    24 kg

    Inverter topology

    Non-insulated transformerless

    Permitted ambient temperature

    -25 °C - +60 °C

    Permissible humidity

    0–100% (incl. condensation)

    EMC emission class

    B

    DC/AC overvoltage category
    (in accordance with IEC 62109-1)

    2 / 3

    Pollution degree

    2

    Sound pressure

    47 dB(A)

    Safety class (according to IEC62103)

    1

    Protection devices

    DC isolation measurement

    Warning / shutdown at RISO < 100 kOHM

    Overload performance

    Operating point shift, power limiter

    DC disconnector

    Integrated

    RCMU

    Integrated

    Active anti-islanding method

    Frequency conversion 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 (for internal supply)

    6 W at 12 V (USB not connected)

    Power per digital output
    (for external supply)

    1 A at >12.5 V-24 V
    (max. 3 A in total)

    Datalogger/web server

    Integrated

    Technical data of surge protective 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

    Explanation of footnotes

    1)
    The values stated are defaults; the inverter is configured specifically to suit the requirements of the relevant 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 one PV side of the inverter, it is 0 A.
    4)
    Guaranteed by the electrical configuration of the inverter.
    5)
    For backup power mode (PV Point) without battery, a minimum voltage of 150 V is required.
    6)
    Current peak when switching on the inverter.
    7)
    The sum of the rated power per phase must not exceed the rated power of the inverter.
    8)
    Valid for Fronius Symo GEN24 with battery connection and Fronius Symo GEN24 Plus.
    9)
    The values stated are default values; these values must be adjusted according to the requirement and PV power.
    10)
    Specified value is a max. value; exceeding the max. value may negatively affect the function.

    Integrated DC disconnector

    General data

    Product name

    Benedict LS32 E 7905

    Rated insulation voltage

    1000 VDC

    Rated impulse withstand voltage

    8 kV

    Suitability for isolation

    Yes, DC only

    Utilization category and/or PV utilization category

    according to IEC/EN 60947-3 Category of utilization DC-PV2

    Rated short-time withstand current (Icw)

    Rated short-time withstand current (Icw): 1000 A

    Rated short-circuit making capacity (Icm)

    Rated short-circuit making capacity (Icm): 1000 A

    Rated operational current and rated breaking capacity

    Rated operational voltage (Ue)

    Rated operational current (Ie)

    I(make) / I(break)

    rated operational 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 poles

    1

    1

    2

    2

    Circuit diagrams

    Circuit Diagram - PV Point (OP)

    Circuit Diagram

    Circuit Diagram - PV Point (OP)

    Circuit Diagram

    Circuit Diagram

    Fronius Symo GEN24 and BYD Battery-Box Premium HV

    Circuit Diagram

    Circuit Diagram

    Fronius Symo GEN24 with two BYD Battery-Box Premium HV connected in parallel

    Circuit Diagram

    Circuit Diagram

    Fronius Symo GEN24 with three BYD Battery-Box Premium HV connected in parallel

    Circuit Diagram

    Circuit Diagram

    Automatic switch to backup power 3-pin double separation - e.g. Austria

    Circuit Diagram

    Circuit Diagram

    Automatic switch to backup power 3-pin single separation- e.g. Australia

    Circuit Diagram

    Circuit Diagram

    Automatic switch to backup power 3-pin double separation with ext. Grid and system protection

    Circuit Diagram

    Circuit Diagram

    Automatic switch to backup power 4-pin double separation - e.g. Germany

    Circuit Diagram

    Circuit Diagram

    Automatic switch to backup power 4-pin single separation- e.g. France, Spain

    Circuit Diagram

    Circuit Diagram

    Automatic switch to backup power 4-pin double separation with ext. grid and system protection - e.g. Italy

    Circuit Diagram

    Circuit Diagram

    Wiring diagram - surge protective device SPD

    Circuit Diagram

    Circuit Diagram

    Dimensions of the inverter

    Fronius Symo GEN24 6 -10 kW

    Fronius Symo GEN24 6 - 10 kW

    Fronius Symo GEN24 6 -10 kW

    Fronius Symo GEN24 6 - 10 kW

    Fronius Symo GEN24 6 - 10 kW