Indicates a potentially dangerous situation.
Death or serious injury may result if appropriate precautions are not taken.
Indicates a potentially harmful situation.
Minor injury or damage to property may result if appropriate precautions are not taken.
Indicates a possibility of flawed work results and possible damage to the equipment.
Please pay special attention when one of the symbols from the "Safety rules" chapter appears in these instructions.
Indicates a potentially dangerous situation.
Death or serious injury may result if appropriate precautions are not taken.
Indicates a potentially harmful situation.
Minor injury or damage to property may result if appropriate precautions are not taken.
Indicates a possibility of flawed work results and possible damage to the equipment.
Please pay special attention when one of the symbols from the "Safety rules" chapter appears in these instructions.
IMPORTANT!
This unit must be operated in accordance with the technical specifications datasheet. This document is available on the corporate website of the manufacturer.
Danger from crushing due to the incorrect handling of attachments and connection parts.
Injuries to limbs may result.
To avoid muscle strain or injury, use proper lifting techniques and if required use a lifting aid.
When lifting up, putting down, and attaching the inverter, use the integrated grips.
When fitting any attachments, ensure that no limbs are located between the attachment and the inverter.
Do not hold onto the terminals when locking and unlocking.
All installations must comply with national and local electrical codes and standards.
In addition to the Operating Instructions, all applicable local regulations regarding accident prevention and environmental protection must also be followed.
All safety and danger notices on the device: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.
Any equipment malfunctions which impair safety must be remedied before the device is turned on.
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.
The servicing information contained in these Operating Instructions is intended only for the use of qualified personnel as defined by the NFPA 70. An electric shock can be fatal. Do not carry out any actions other than those described in the documentation.
All cables and leads must be secured, undamaged, insulated, and adequately dimensioned. Loose connections, scorched, damaged, or under-dimensioned cables and leads must be repaired immediately by qualified personnel.
Maintenance and repair work must only be carried out by an authorized specialist.
It is impossible to guarantee that externally (aka, third-party) procured 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.
The sound pressure level of the inverter is indicated in the Technical data.
The cooling of the device takes place via an electronic temperature control system at the lowest possible noise level and depends on the power used, ambient temperature, and the soiling level of the device, etc.
It is not possible to provide a workplace-related emission value for this device, because the actual sound pressure level is heavily influenced by the installation situation, the power quality, the surrounding walls, and the properties of the room in general.
In certain cases, even though a device complies with the standard limit values for emissions, it may affect the application area for which it was designed (e.g., when there is equipment that is susceptible to interference at the same location or if the site where the device is installed is close to either radio or television receivers). If this is the case, the operator is obliged to take action to rectify the situation.
This system has backup power functions, which enable a replacement power supply to be established in the event of a failure of the public grid.
Where an automatic backup power supply is installed, a backup power warning notice (https://www.fronius.com/en/search-page, item number: 42,0409,0275) must be fitted on the electrical distributor.
Maintenance and installation work in the home network requires both disconnection on the utility side and deactivation of the replacement power mode by opening the integrated DC disconnector on the inverter.
The function of the residual current devices for the backup power supply must be checked at regular intervals (according to the manufacturer's instructions), but at least twice a year.
A description on how to perform the test operation can be found in the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365).
Depending on the insolation conditions and the battery state of charge, the backup power supply is automatically deactivated and activated. This can cause the backup power supply to unexpectedly return from standby mode. Therefore, installation work can only be performed on the home network when the backup power supply is deactivated.
Influencing factors on the total power in backup power mode:
Reactive power
Electrical loads with a power factor not equal to 1 also require reactive power in addition to effective power. The reactive power also loads the inverter. Therefore, to correctly calculate the actual total power, it is not the rated power of the load that is relevant, but the current caused by effective and reactive power.
Devices with a high reactive power are mainly electric motors such as:
High starting current
Electrical loads that need to accelerate a large mass usually require a high starting current. This can be up to 10 times higher than the nominal current. The maximum current of the inverter is available for the starting current. Loads with starting currents that are too high therefore cannot be started/operated, even though the nominal output of the inverter suggests that they can. When dimensioning the backup power circuit, the connected load power and any starting current must also be taken into account.
Devices with high starting currents are, for example:
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.
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.
Copyright of these operating instructions remains with the manufacturer.
Text and illustrations were accurate at the time of printing, subject to change.
We are grateful for suggestions for improvement and information on any discrepancies in the operating instructions.
Grounding a point in the device, system, or installation serves as a protective measure against electric shock in the event of a fault. When installing an inverter from safety class 1 (see Technical data), a ground conductor connection is required.
When connecting the ground conductor, ensure that it is secured to prevent unintentional disconnection. All of the points listed in the chapter headed Connecting the inverter to the public grid (AC side) on page (→) must be observed. When using strain-relief devices, it is important to ensure that the ground conductor is loaded last in the event of a failure. The respective national standards and regulations and requirements for minimum cross-section must be observed when connecting the ground conductor.
Function | Primo GEN24 | Primo GEN24 Plus |
---|---|---|
Backup power variant - PV Point (OP) | ||
Battery connection* | Available as an option** | |
Backup power variant - Essential Backup | Available as an option** |
* | For suitable batteries, see chapter Suitable batteries. |
** | The functions are optionally available via Fronius UP (see chapter Fronius UP). |
Function | Primo GEN24 | Primo GEN24 Plus |
---|---|---|
Backup power variant - PV Point (OP) | ||
Battery connection* | Available as an option** | |
Backup power variant - Essential Backup | Available as an option** |
* | For suitable batteries, see chapter Suitable batteries. |
** | The functions are optionally available via Fronius UP (see chapter Fronius UP). |
Function | Primo GEN24 | Primo GEN24 Plus |
---|---|---|
Backup power variant - PV Point (OP) | ||
Battery connection* | Available as an option** | |
Backup power variant - Essential Backup | Available as an option** |
* | For suitable batteries, see chapter Suitable batteries. |
** | The functions are optionally available via Fronius UP (see chapter Fronius UP). |
(1) | Housing cover |
(2) | Inverter |
(3) | Mounting bracket (illustration) |
(4) | Quick Start Guide |
With Fronius UP*, optionally available functions can be added to the inverter by the authorized specialist company (see chapter Function overview).
* | The availability of Fronius UP is country-specific. Click here for further information on availability. |
The inverter is designed to convert direct current from PV modules into alternating current and feed this power into the public grid. A backup power mode* is possible if the wiring is set up accordingly.
Intended use also means:Follow all grid operator regulations regarding energy fed into the grid and connection methods.
The inverter is a grid-connected inverter with backup power function and is not a stand-alone inverter. The following restrictions in backup power mode must therefore be observed:* | Depending on the device variant, suitable battery, corresponding cabling, settings, and local standards and regulations. |
Ambient air is drawn in at the front of the device by the fan and blown out at the sides. The even heat dissipation allows several inverters to be installed next to each other.
Risk due to insufficient cooling of the inverter.
This may result in a loss of power in the inverter.
Do not block the fan (e.g., with objects that protrude through the touch guard).
Do not cover the ventilation slots, even partially.
Make sure that the ambient air can always flow through the inverter's ventilation slots unimpeded.
System owners and installers can easily monitor and analyze the PV system using Fronius Solar.web or Fronius Solar.web Premium. With the appropriate configuration, the inverter transmits data such as power, yield, load, and energy balance to Fronius Solar.web. More detailed information can be found at Solar.web - Monitoring & analysis.
Configuration is carried out using the Setup wizard; see the chapter headed Installation with the app on page (→) or Installation with the browser on page (→).
Requirements for configuration:* | These specifications do not provide an absolute guarantee of flawless operation. High error rates in the transmission, fluctuating receptions or misfires can have an adverse effect on data transfer. Fronius recommends on-site testing to ensure that the connections meet the minimum requirements. |
The inverter can be found via the Multicast DNS (mDNS) protocol. We recommend searching for the inverter using the assigned host name.
The following data can be called up via mDNS:PV module | ||
Fronius GEN24 inverter | ||
Additional inverter in the system | ||
Battery | ||
Primary meter | ||
Secondary meter | ||
Loads in the system | ||
Additional loads and producers in the system | ||
PV Point | ||
Essential Backup | ||
Grid |
PV module | ||
Fronius GEN24 inverter | ||
Additional inverter in the system | ||
Battery | ||
Primary meter | ||
Secondary meter | ||
Loads in the system | ||
Additional loads and producers in the system | ||
PV Point | ||
Essential Backup | ||
Grid |
IMPORTANT!
For backup power mode, a Backup Frequency Offset can be set for loads in the backup power circuit (see 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.
(1) | PV module – inverter – load/grid/battery |
(2) | Battery – inverter – load/grid* |
(3) | Grid – inverter – battery* |
* Depending on the settings and local standards and regulations.
Battery systems distinguish between different operating states. In each case, the relevant current operating state is displayed on the user interface of the inverter or in Fronius Solar.web.
Operating state | Description |
---|---|
Normal operation | Energy is stored or drawn, as required. |
Min. state of charge (SoC) reached | The battery has reached the minimum SoC specified by the manufacturer or the set minimum SoC. The battery cannot be discharged further. |
Energy saving mode (standby) | The system has been put into energy-saving mode. Energy saving mode is automatically ended as soon as sufficient excess power is available again. |
Start | The storage system starts from energy-saving mode (standby). |
Forced re-charging | The inverter recharges the battery, in order to maintain the SoC specified by the manufacturer or the set SoC (protection against deep discharge). |
Deactivated | The battery is not active. It has either been deactivated/switched off, or an error means that no communication with the battery is possible. |
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.
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.
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.
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.
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.
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.
Install third-party batteries (part of a ESS (energy storage system)) according to applicable local and national codes.
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
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.
Install third-party batteries (part of a ESS (energy storage system)) according to applicable local and national codes.
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
If the DC voltage exceeds 403 V, the battery can no longer be charged or discharged. The voltage of 403 V is rarely exceeded during normal operation of the inverter.
When the output power of the inverter is reduced, the operating point shifts towards higher DC voltages. The following conditions during normal operation can lead to the DC voltage of 403 V being exceeded:BYD Battery-Box Premium HVM-US | 8.3 | 11.0 | 13.8 | 16.6 | 19.3 | 22.1 |
---|---|---|---|---|---|---|
Number of battery modules | 3 | 4 | 5 | 6 | 7 | 8 |
Fronius Primo GEN24 * | ||||||
Fronius Primo GEN24 Plus | ||||||
Battery parallel operation** |
* | Battery support optionally available. |
** | Max. 3 batteries with the same capacity can be combined. |
IMPORTANT!
According to the manufacturer's specifications, the max. DC cable length is 20 m. More detailed information can be found in the manufacturer's documents.
Switch on the battery.
Set the DC disconnector to the "On" switch position. Switch on the automatic circuit breaker.
Limited rapid shutdown function in backup power mode (PV Point and Essential Backup)
If PV Point or Essential Backup is configured, rapid shutdown cannot be triggered via the loss of grid connection. This can result in serious personal injury and damage to the PV system.
A WSD switch must be installed for all backup power modes (PV-Point and Essential Backup) (see Installing the WSD (wired shutdown)). The rapid shutdown is then triggered via WSD.
Self test error automatic: RsdSelftestFailed
When an RSD occurs, an entry appears in the Event Log menu: RsdTriggeredByLossOfAc (interruption by AC breaker) or RsdTriggeredBySwitch (interruption by WSD circuit)
In case a module-level shutdown equipment within the PV array is used in combination with the inverter, this labeling has to be used acording to NEC (Section 690.12), CSA C22.1 (Section 64-218):
In case a string-level shutdown equipment at the PV array is used in combination with the inverter, this labeling has to be used acording to NEC (Section 690.12), CSA C22.1 (Section 64-218):
Warning - The installer is responsible for the correct labeling of the PV system. The rapid shutdown requirement of the inverter is not affected by the FRT (fault ride through) capability, so the inverter is „Grid support interactive compatible“.
Warning - This photovoltaic rapid shutdown equipment (PVRSE) does not perform all of the functions of a complete photovoltaic rapid shutdown system (PVRSS). This PVRSE must be installed with other equipment to from a complete PVRSS that meets the requirements of NEC (NFPA 70) section 690.12 for controlled conductors outside the array. Other equipment installed in or on this PV system may adversly affect the operation of the PVRSS. It is the responsibility of the installer to ensure that the completed PV system meets the rapid shutdown functional requirements. This equipment must be installed according to the manufacturer´s installation instructions.
Self-test
A self-test of the RSD function can be performed manually or automatically. The automatic self-test relates only to the discharge circuit of the RSD function. All other RSD circuit components are produced so as to be fail-safe.
Sequence of automatic self-test:
In each startup procedure—prior to connection to the public grid—when there is sufficient DC voltage (40 V) the discharge circuit is activated for 10 ms and the feedback pin is checked prior to and during charging.
Sequence of manual self-test:
A manual self-test can be triggered by an interruption in the grid connection (e.g., AC breaker) or by the WSD trigger device (see also WSD (wired shutdown) on page (→)).
The discharge must be measured and checked using a multimeter.
Limited rapid shutdown function in backup power mode (PV Point and Essential Backup)
If PV Point or Essential Backup is configured, rapid shutdown cannot be triggered via the loss of grid connection. This can result in serious personal injury and damage to the PV system.
A WSD switch must be installed for all backup power modes (PV-Point and Essential Backup) (see Installing the WSD (wired shutdown)). The rapid shutdown is then triggered via WSD.
Self test error automatic: RsdSelftestFailed
When an RSD occurs, an entry appears in the Event Log menu: RsdTriggeredByLossOfAc (interruption by AC breaker) or RsdTriggeredBySwitch (interruption by WSD circuit)
In case a module-level shutdown equipment within the PV array is used in combination with the inverter, this labeling has to be used acording to NEC (Section 690.12), CSA C22.1 (Section 64-218):
In case a string-level shutdown equipment at the PV array is used in combination with the inverter, this labeling has to be used acording to NEC (Section 690.12), CSA C22.1 (Section 64-218):
Warning - The installer is responsible for the correct labeling of the PV system. The rapid shutdown requirement of the inverter is not affected by the FRT (fault ride through) capability, so the inverter is „Grid support interactive compatible“.
Warning - This photovoltaic rapid shutdown equipment (PVRSE) does not perform all of the functions of a complete photovoltaic rapid shutdown system (PVRSS). This PVRSE must be installed with other equipment to from a complete PVRSS that meets the requirements of NEC (NFPA 70) section 690.12 for controlled conductors outside the array. Other equipment installed in or on this PV system may adversly affect the operation of the PVRSS. It is the responsibility of the installer to ensure that the completed PV system meets the rapid shutdown functional requirements. This equipment must be installed according to the manufacturer´s installation instructions.
Self-test
A self-test of the RSD function can be performed manually or automatically. The automatic self-test relates only to the discharge circuit of the RSD function. All other RSD circuit components are produced so as to be fail-safe.
Sequence of automatic self-test:
In each startup procedure—prior to connection to the public grid—when there is sufficient DC voltage (40 V) the discharge circuit is activated for 10 ms and the feedback pin is checked prior to and during charging.
Sequence of manual self-test:
A manual self-test can be triggered by an interruption in the grid connection (e.g., AC breaker) or by the WSD trigger device (see also WSD (wired shutdown) on page (→)).
The discharge must be measured and checked using a multimeter.
The inverter is equipped with a Power Line Communication (PLC) transmitter on the DC side. Its function is to ensure rapid shutdown in accordance with National Electric Code NEC 2023 Art. 690.12 and Canadian Electrical Code CSA C22.1:24 Art. 64-218. The PLC is implemented according to the specification “Communication Signal for Rapid Shutdown – SunSpec Interoperability Specification” (depending on national grid setup). Please visit www.sunspec.org for details.
To ensure compliance with all applicable regulations in your country and to ensure optimal reception among all recipients, please follow the recommendations below:Depending on the installation, an additional external AC and/or DC disconnect may be required if the inverter is installed in a location not easily accessible to utility or first responders. Contact your local authorities for additional information.
The wired shutdown (WSD) interrupts the inverter's grid power feed if the trigger device (switch, e.g., Emergency Stop or fire alarm contact) has been activated.
If the installation location requires inverter shutdown when the building fire alarm system is activated, the Wired Shut Down connection on the inverter can be used and connected to the building fire alarm system.
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 (→).
If the installation location requires inverter shutdown when the building fire alarm system is activated, the Wired Shut Down connection on the inverter can be used and connected to the building fire alarm system.
The inverter is equipped with an RCMU (RCMU = residual current monitoring unit) according to UL1741 CRD 3rd Edition (Non-Isolated EPS Interactive PV Inverters).
It monitors residual currents from the PV module up to the AC output and disconnects the inverter from the grid when an improper residual current is detected. If five faults are detected within a period of 24 hours, grid power feed operation can also be permanently interrupted until a manual reconnection has been performed.
In the case of PV systems with ungrounded PV source circuits, the inverter checks the resistance between the positive or negative pole of the PV system and the ground potential before feeding energy into the grid. In the event of a short circuit between the DC+ or DC- cable and ground (e.g. due to inadequately insulated DC cables or damaged solar modules), the inverter is prevented from feeding energy into the grid.
An AFCI (arc fault circuit interrupter) protects against arc faults in accordance with National Electric Code NEC 2023 Art. 690.11 and Canadian Electrical Code CSA C22.1:24 Art. 64-216 and, in the narrower sense, is a protection device in the event of contact errors. The AFCI evaluates faults that occur in the current and voltage flow on the DC side using an electronic circuit and shuts down the circuit if a contact error is detected. This significantly reduces potential overheating and fire risk at poor contact points.
Danger from faulty or incorrect DC installation.
This may result in a risk of damage and, as a consequence, risk of fire in the PV system due to prohibited thermal loads that occur during an arc.
Check the plug connections to ensure that they are correct.
Repair faulty insulation correctly.
Perform connection work in line with the instructions.
IMPORTANT!
Fronius will not bear any costs for production downtimes, installation costs, etc., which may arise due to a detected electric arc and its consequences. Fronius accepts no liability for damage which may occur despite the integrated Arc Fault Circuit Interrupter/interruption (e.g., due to a parallel arc).
IMPORTANT!
Active PV module electronics (e.g., power optimizers) can impair the function of the Arc Fault Circuit Interrupter. Fronius cannot guarantee the correct function of the Arc Fault Circuit Interrupter in combination with active PV module electronics.
Reconnection behavior
Grid power feed operation is interrupted for at least 5 minutes after an arc has been detected. Depending on the configuration, grid power feed operation is then automatically resumed. If several arcs are detected within a period of 24 hours, grid power feed operation can also be permanently interrupted until a manual reconnection has been performed.
If one of the following safety devices is triggered, the inverter switches to the standby state:
In the standby state, the inverter no longer feeds in and is disconnected from the grid by the opening of the AC relay.
The inverter is equipped with an integrated surge protection device according to UL1741 3rd Edition, CSA-C22.2 No.107.1-16 on the DC (Category II) and AC (Category IV) side. The surge protection device protects the system against damage caused by overvoltage.
If the integrated surge protection devices become damaged due to prolonged overvoltage exposure, the damage may not be covered under the terms of warranty. See warranty terms for more information.
(1) | 2 x 5-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) | 4-pin AC push-in terminal |
(6) | 6-pin ground electrode terminal |
(7) | Connection area divider |
(8) | AC conduit connection (Ø ½ - 1 inch / 13 - 25 mm) (Ø ½ - 1¼ inch / 13 - 32 mm) |
(9) | Ground spike conduit connection (Ø ⅝ inch / 16 mm) |
(10) | DatCom conduit connection (Ø ½ - ¾ inch / 13 - 19 mm) |
(11) | Data communication area conduit connection (Ø ⅝ - ¾ inch / 16 - 19 mm) |
(12) | Drain valve |
(13) | DC conduit connection (Ø ½ - 1 inch / 13 - 25 mm) |
(1) | 2 x 5-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) | 4-pin AC push-in terminal |
(6) | 6-pin ground electrode terminal |
(7) | Connection area divider |
(8) | AC conduit connection (Ø ½ - 1 inch / 13 - 25 mm) (Ø ½ - 1¼ inch / 13 - 32 mm) |
(9) | Ground spike conduit connection (Ø ⅝ inch / 16 mm) |
(10) | DatCom conduit connection (Ø ½ - ¾ inch / 13 - 19 mm) |
(11) | Data communication area conduit connection (Ø ⅝ - ¾ inch / 16 - 19 mm) |
(12) | Drain valve |
(13) | DC conduit connection (Ø ½ - 1 inch / 13 - 25 mm) |
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.
The ground electrode terminal provides the option of grounding additional components, such as:
The DC disconnector has three switch settings:
(1) | Locked/off (turned to the left) |
(2) | Off |
(3) | On |
IMPORTANT!
In switch settings (1) and (3), the inverter can be secured to prevent it from being switched on/off using a standard padlock. The national guidelines must be complied with in this respect.
Operating LED | Indicates the inverter operating status. |
WSD (wired shutdown) switch | Defines the inverter as the WSD master or WSD slave. |
Modbus 0 (MB0) switch | Switches the terminating resistor for Modbus 0 (MB0) on/off. |
Modbus 1 (MB1) switch | Switches the terminating resistor for Modbus 1 (MB1) on/off. |
Optical sensor | For operating the inverter. See the chapter headed Button functions and LED status indicator on page (→). |
Communications LED | Indicates the inverter connection status. |
LAN 1 | Ethernet connection for data communication (e.g., WLAN router, home network or, for commissioning with a laptop, see the chapter headed Installation with the browser on page (→)). |
LAN 2 | Reserved for future functions. To avoid malfunctions, only use LAN 1. |
I/O terminal | Push-in terminal for digital inputs/outputs. See the chapter headed Permissible cables for the data communication connection on page (→). |
WSD terminal | Push-in terminal for the WSD installation. See the chapter headed "WSD (wired shutdown)" on page (→). |
Modbus terminal | Push-in terminal for the installation of Modbus 0, Modbus 1, 12 V, and GND (ground). |
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. | ||
2x = WLAN Protected Setup (WPS) is activated. | ||
3 seconds (max. 6 seconds) = the service message is acknowledged. |
LED status indicator | ||
---|---|---|
The inverter is operating correctly. | ||
The inverter is performing the grid checks required by the applicable standards for feed-in mode. | ||
The inverter is in standby, is not operational (e.g. no feed-in at night) or is not configured. | ||
The inverter indicates a non-critical status. | ||
The inverter indicates a critical status and there is no grid power feed process. | ||
The inverter indicates a backup power overload. | ||
The network connection is being established via WPS. | ||
The network connection is being established via WLAN AP. | ||
The network connection is not configured. | ||
The inverter is operating correctly, a network fault is indicated. | ||
The network connection is active. | ||
The inverter is performing an update. | ||
There is a service message. |
The V+/GND pin provides the possibility of feeding in a voltage in the range of 12.5 to 24 V (+ max. 20%) using an external power supply unit. Outputs IO 0 - 5 can then be operated using the external voltage that has been fed in. A maximum of 1 A may be drawn per output, whereby a total of max. 3 A is permitted. The fuse protection must take place externally.
Danger from polarity reversal at the terminals due to improper connection of external power supply units.
This may result in severe damage to the inverter.
Check the polarity of the external power supply unit with a suitable measuring device before connecting it.
Connect the cables to the V+/GND outputs while ensuring the correct polarity.
IMPORTANT!
If the total output (6W) is exceeded, the inverter switches off the entire external power supply.
(1) | Current limitation |
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.
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.
Status codes about the inactive state of the battery are displayed on the user interface of the inverter. A notification via e-mail can be activated in Fronius Solar.web.
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 (→).
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.
Limited rapid shutdown function in backup power mode (PV Point and Essential Backup)
If PV Point or Essential Backup is configured, rapid shutdown cannot be triggered via the loss of grid connection. This can result in serious personal injury and damage to the PV system.
A WSD switch must be installed for all backup power modes (PV-Point and Essentail Backup) (see Installing the WSD (wired shutdown)). The rapid shutdown is then triggered via WSD.
With the PV Point, in the event of a failure of the public grid, electrical devices can be connected to the Opportunity Power (OP) terminal and supplied with a maximum power of 1.56 kW, if enough power is available in the PV modules. 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 grid switchover with relay is not possible.
Limited rapid shutdown function in backup power mode (PV Point and Essential Backup)
If PV Point or Essential Backup is configured, rapid shutdown cannot be triggered via the loss of grid connection. This can result in serious personal injury and damage to the PV system.
A WSD switch must be installed for all backup power modes (PV-Point and Essentail Backup) (see Installing the WSD (wired shutdown)). The rapid shutdown is then triggered via WSD.
With the PV Point, in the event of a failure of the public grid, electrical devices can be connected to the Opportunity Power (OP) terminal and supplied with a maximum power of 1.56 kW, if enough power is available in the PV modules. 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 grid switchover with relay is not possible.
Limited rapid shutdown function in backup power mode (PV Point and Essential Backup)
If PV Point or Essential Backup is configured, rapid shutdown cannot be triggered via the loss of grid connection. This can result in serious personal injury and damage to the PV system.
A WSD switch must be installed for all backup power modes (PV-Point and Essentail Backup) (see Installing the WSD (wired shutdown)). The rapid shutdown is then triggered via WSD.
With the PV Point, in the event of a failure of the public grid, electrical devices can be connected to the Opportunity Power (OP) terminal and supplied with a maximum power of 1.56 kW, if enough power is available in the PV modules. 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 grid switchover with relay is not possible.
With the default settings, the inverter can provide 120V at the PV Point. A corresponding configuration must be set up during commissioning.
At the selected output voltage, a maximum of 13 A AC continuous current is available. The maximum continuous output is 1560 W.
Example:
120 V *13 A = 1560 W
In backup power mode, some electrical appliances cannot function properly as start-up currents are too high (e.g., fridges and freezers). In backup power mode, we recommend switching off non-essential loads. Overload capacity of 35% is possible for a duration of 5 seconds, depending on the current power of the PV module.
There is a brief interruption when switching from grid-connected mode to backup power mode. As a result, the backup power function cannot be used as an uninterruptible power supply, for computers, for example.
If no energy from the PV modules is available in backup power mode, backup power mode ends automatically. Backup power mode restarts again automatically once sufficient energy can once again be provided by the PV modules.
In the event of excessive loads, 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 specified in the technical data must be observed.
IMPORTANT!
If several backup power variants are available, please note that only one backup power variant may be installed and configured.
IMPORTANT!
If several backup power variants are available, please note that only one backup power variant may be installed and configured.
IMPORTANT!
If several backup power variants are available, please note that only one backup power variant may be installed and configured.
A quick-fastener system (3) is used to mount the connection area cover and front cover. The system is opened and closed with a half-rotation (180°) of the captive screw (1) into the quick-fastener spring (2).
The system is independent of torque.
Danger when using a drill driver.
This may result in the destruction of the quick-fastener system due to overtorque.
Use a screwdriver (TX20).
Do not turn the screws more than 180°.
A quick-fastener system (3) is used to mount the connection area cover and front cover. The system is opened and closed with a half-rotation (180°) of the captive screw (1) into the quick-fastener spring (2).
The system is independent of torque.
Danger when using a drill driver.
This may result in the destruction of the quick-fastener system due to overtorque.
Use a screwdriver (TX20).
Do not turn the screws more than 180°.
A quick-fastener system (3) is used to mount the connection area cover and front cover. The system is opened and closed with a half-rotation (180°) of the captive screw (1) into the quick-fastener spring (2).
The system is independent of torque.
Danger when using a drill driver.
This may result in the destruction of the quick-fastener system due to overtorque.
Use a screwdriver (TX20).
Do not turn the screws more than 180°.
Warning notices and safety symbols are located on the inverter. These warning notices and safety symbols must not be removed or painted over. They warn against incorrect operation, as this may result in serious injury and property damage.
Symbols on the rating plate: | |
Devices marked with the CSA certification mark satisfy the requirements of the relevant product standards for Canada and the USA. | |
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. |
This device complies with Industry Canada licence-exempt RSS standard(s) and part 15 of the FCC Rules. Operation is subject to the following two conditions:
Safety symbols: | |
Danger 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:
| |
Dangerous electrical voltage | |
Allow the capacitors of the inverter to discharge (2 minutes). |
Warning notice text:
WARNING!
An electric shock can be fatal. Before opening the device, ensure that the input and output sides are de-energized.
Risk from unsuitable choice of location for the inverter.
Failure or restricted operation of the inverter may result.
Adhere to the instructions relating to the location, according to this chapter
Adhere to national provisions and guidelines when installing 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: | |
| Relative humidity: | |
| When installing the inverter in a switch cabinet or similar closed environment, it is necessary to make sure that the hot air that develops will be dissipated by forced-air ventilation. | |
When installing the inverter on the outer walls of cattle sheds, it is important to maintain a minimum clearance of 6.5 ft between all sides of the inverter and the ventilation and building openings. | ||
The following substrates are permissible for installation:
|
| The inverter is suitable for indoor installation. | |
| The inverter is suitable for outdoor installation. When properly installed, the inverter has a Type 4X protection class, is not susceptible to spraying water on any side and can also be operated in moist environments. | |
| In order to keep inverter heating as low as possible, do not expose the inverter to direct sunlight. The inverter should be installed in a protected location, e.g., near the PV modules or under an overhanging roof. | |
| ||
| IMPORTANT! The inverter must not be installed or operated at more than 13,123 ft / 4001 m above sea level. | |
| Do not install the inverter:
| |
| 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:
| |
| The inverter is essentially designed to be dustproof (Type 4X). In areas of high dust accumulation, dust deposits may collect on the cooling surfaces, and thus impair the thermal performance. Regular cleaning is required in this case; see the chapter headed Operation in dusty environments on page (→). We therefore recommend not installing the inverter in areas and environments with high dust accumulation. | |
| Do not install the inverter in:
|
Risk from unsuitable choice of location for the inverter.
Failure or restricted operation of the inverter may result.
Adhere to the instructions relating to the location, according to this chapter
Adhere to national provisions and guidelines when installing 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: | |
| Relative humidity: | |
| When installing the inverter in a switch cabinet or similar closed environment, it is necessary to make sure that the hot air that develops will be dissipated by forced-air ventilation. | |
When installing the inverter on the outer walls of cattle sheds, it is important to maintain a minimum clearance of 6.5 ft between all sides of the inverter and the ventilation and building openings. | ||
The following substrates are permissible for installation:
|
| The inverter is suitable for indoor installation. | |
| The inverter is suitable for outdoor installation. When properly installed, the inverter has a Type 4X protection class, is not susceptible to spraying water on any side and can also be operated in moist environments. | |
| In order to keep inverter heating as low as possible, do not expose the inverter to direct sunlight. The inverter should be installed in a protected location, e.g., near the PV modules or under an overhanging roof. | |
| ||
| IMPORTANT! The inverter must not be installed or operated at more than 13,123 ft / 4001 m above sea level. | |
| Do not install the inverter:
| |
| 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:
| |
| The inverter is essentially designed to be dustproof (Type 4X). In areas of high dust accumulation, dust deposits may collect on the cooling surfaces, and thus impair the thermal performance. Regular cleaning is required in this case; see the chapter headed Operation in dusty environments on page (→). We therefore recommend not installing the inverter in areas and environments with high dust accumulation. | |
| Do not install the inverter in:
|
The inverter is suitable for vertical installation on a vertical wall or column. | ||
The inverter is suitable for installation on a sloping surface (min. slope of underside 10°). | ||
Do not install the inverter on a sloping surface with the connections upwards. | ||
Do not install the inverter in a sloping position on a vertical wall or column. | ||
Do not install the inverter in a horizontal position on a vertical wall or column. | ||
Do not install the inverter with the connections upwards on a vertical wall or column. | ||
Do not install the inverter overhanging with the connections upwards. | ||
Do not install the inverter overhanging with the connections downwards. | ||
Do not install the inverter on the ceiling. |
IMPORTANT! The knockouts must be drilled out using a step drill bit only. The maximum conduit sizes are ½ - 1 inch / 13 - 25 mm.
IMPORTANT! Void warranty if the conduit holes are drilled improperly.
Condensation within the conduits can damage the inverter or components of the photovoltaic systems.
To avoid undesirable air circulation and condensation in the conduits:
Attach appropriate conduits to all knockouts that have been drilled open.
When installing outdoors, only use waterproof conduit fittings and conduits.
Seal the conduits in accordance with the pictures above on both sides.
Conduit fittings and conduits are not part of the scope of supply for the inverter.
IMPORTANT! The knockouts must be drilled out using a step drill bit only. The maximum conduit sizes are ½ - 1 inch / 13 - 25 mm.
IMPORTANT! Void warranty if the conduit holes are drilled improperly.
Condensation within the conduits can damage the inverter or components of the photovoltaic systems.
To avoid undesirable air circulation and condensation in the conduits:
Attach appropriate conduits to all knockouts that have been drilled open.
When installing outdoors, only use waterproof conduit fittings and conduits.
Seal the conduits in accordance with the pictures above on both sides.
Conduit fittings and conduits are not part of the scope of supply for the inverter.
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.
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.
The mounting bracket (illustration) can also be used as a guide.
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). The distance from the left to the right pre-drilled hole is 406 mm (16 inches).
Unevenness on the mounting surface (such as coarse-textured plaster) is largely compensated by the mounting bracket.
When attaching the mounting bracket to the wall or to a column, make sure that the mounting bracket is not deformed.
A deformed mounting bracket may make it difficult to clip/swivel the inverter into position.
IMPORTANT!
When installing the mounting bracket, make sure that it is installed with the arrow pointing upwards.
IMPORTANT!
The mounting bracket must be affixed at a minimum of four points.
Integrated grips, which facilitate lifting/clipping, are located on the side of the inverter.
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 engages on both sides with an audible click.
Ensure the correct position of the inverter on both sides.
Single-core | Multi-stranded | Fine-stranded | Fine-stranded with ferrule and collar | Fine-stranded with ferrule without collar |
---|---|---|---|---|
Single-core | Multi-stranded | Fine-stranded | Fine-stranded with ferrule and collar | Fine-stranded with ferrule without collar |
---|---|---|---|---|
Grid connections with push-in terminal* | |||||
---|---|---|---|---|---|
Number of pins | |||||
4 | AWG 12–6 / 4 - 16 mm² | AWG 12–6 / 4 - 16 mm² | AWG 12–6 / 4 - 16 mm² | AWG 12–6 / 4 - 16 mm² | AWG 12–6 / 4 - 16 mm² |
Grid connections for backup power with push-in terminal* | |||||
---|---|---|---|---|---|
Number of pins | |||||
3 | AWG 16–8 / 1.5 - 10 mm² | AWG 16–8 / 1.5 - 10 mm² | AWG 16–8 / 1.5 - 10 mm² | AWG 16–8 / 1.5 - 10 mm² | AWG 16–8 / 1.5 - 10 mm² |
PV connections with push-in terminal | |||||
---|---|---|---|---|---|
Number of pins | |||||
2 x 5 | AWG 14–8 / 2.5 - 10 mm² | AWG 14–8 / 2.5 - 10 mm² | AWG 14–8 / 2.5 - 10 mm² | AWG 14–8 / 2.5 - 10 mm² | AWG 14–8 / 2.5 - 10 mm² |
Ground electrode terminal (6-pin) | |||||
---|---|---|---|---|---|
Number of pins | |||||
2 | AWG 14–6 / 2.5 - 16 mm² | AWG 14–6 / 2.5 - 16 mm² | AWG 14–6 / 2.5 - 16 mm² | AWG 14–6 / 2.5 - 16 mm² | AWG 14–6 / 2.5 - 16 mm² |
4 | AWG 14–8 / 2.5 - 10 mm² | AWG 14–8 / 2.5 - 10 mm² | AWG 14–8 / 2.5 - 10 mm² | AWG 14–8 / 2.5 - 10 mm² | AWG 14–8 / 2.5 - 10 mm² |
* | According to product standards UL1741 3rd Edition, Table 20.1 and CSA-C22.2 No.107.1-16 |
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 | Stripping length | Cable recommendation | ||||
100 m 109 yd | 10 mm | 0.14-1.5 mm2 | 0.14-1.5 mm2 | 0.14-1 mm2 | 0.14-1.5 mm2 | min. CAT 5 UTP (unshielded twisted pair) |
Modbus connections with push-in terminal | ||||||
---|---|---|---|---|---|---|
Distance | Stripping length | Cable recommendation | ||||
300 m 328 yd | 10 mm | 0.14-1.5 mm2 | 0.14-1.5 mm2 | 0.14-1 mm2 | 0.14-1.5 mm2 | min. CAT 5 STP (shielded twisted pair) |
IO connections with push-in terminal | ||||||
---|---|---|---|---|---|---|
Distance | Stripping length | Cable recommendation | ||||
30 m | 10 mm | 0.14-1.5 mm2 | 0.14-1.5 mm2 | 0.14-1 mm2 | 0.14-1.5 mm2 | Single conductor possible |
LAN connections |
---|
Fronius recommends at least CAT 5 STP (shielded twisted pair) cables and a maximum distance of 100 m (109 yd). |
Cable diameter for connection to the push-in terminal: 0.27 inches
IMPORTANT
For double-insulated cables with a cable diameter above 0.27 inches, the outer layer of insulation must be removed for the connection to the push-in terminal.
The national regulations of the grid operator or other factors may require a residual current circuit breaker in the AC connection lead.
For this situation, a type A residual current circuit breaker is generally adequate. Nevertheless, false alarms can be triggered for the type A residual-current circuit breaker in individual cases and depending on local conditions. For this reason, in accordance with national legislation, Fronius recommends that a residual-current circuit breaker with a tripping current of at least 100 mA suitable for frequency converters be used.
IMPORTANT!
The inverter can be fused with max. an automatic circuit breaker 65 A.
Inverter | Phases | Maximum fuse rating | Recommended fuse rating ( 208V / 220V / 240 V) |
---|---|---|---|
Fronius Primo GEN24 7.7 208-240 | 1 | 65 A | 50 A / 45 A / 40 A |
Fronius Primo GEN24 10.0 208-240 | 1 | 65 A | 60 A / 60 A / 55 A |
Danger from incorrect operation and work that is not carried out properly.
This can result in severe personal injury and damage to property.
Read the Installation Instructions and Operating Instructions before installing and commissioning the equipment.
Only qualified personnel are authorized to commission the inverter and only within the scope of the respective technical regulations.
Danger from grid voltage and DC voltage from PV modules that are exposed to light.
An electric shock can be fatal.
Prior to any connection work, ensure that the inverter is de-energized on the AC side and the DC side.
Only qualified personnel may connect this equipment to the public grid
Danger from damaged and/or contaminated terminals.
This can result in severe personal injury and damage to property.
Prior to connection work, check the terminals for damage and contamination.
Remove any contamination while the equipment is de-energized.
Have defective terminals replaced by an authorized technician.
Danger from incorrect operation and work that is not carried out properly.
This can result in severe personal injury and damage to property.
Read the Installation Instructions and Operating Instructions before installing and commissioning the equipment.
Only qualified personnel are authorized to commission the inverter and only within the scope of the respective technical regulations.
Danger from grid voltage and DC voltage from PV modules that are exposed to light.
An electric shock can be fatal.
Prior to any connection work, ensure that the inverter is de-energized on the AC side and the DC side.
Only qualified personnel may connect this equipment to the public grid
Danger from damaged and/or contaminated terminals.
This can result in severe personal injury and damage to property.
Prior to connection work, check the terminals for damage and contamination.
Remove any contamination while the equipment is de-energized.
Have defective terminals replaced by an authorized technician.
In grid configurations with neutral conductors, the neutral conductor must be connected in order to operate the inverter.
It is not possible to operate the inverter in ungrounded grids, e.g., IT grids (insulated grids without ground conductor). The grid power feed operation of the inverter can be adversely affected by an insufficiently dimensioned neutral conductor.
Make sure that the grid's neutral conductor is grounded.
Ensure the neutral conductor and live conductor are the same size.
IMPORTANT! The ground conductor/grounding of the AC cable must be laid so that it is disconnected last in the event of a failure.
Turn off the automatic circuit breaker. Set the DC disconnector to the "Off" switch position.
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.
Guide the mains cable from below through the electrical installation tube on the right side.
Remove the AC terminal.
Strip the insulation of the single conductors by 0.75 inches.
The cable cross-section must be selected in accordance with the instructions in Permitted cables for the electrical connection 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 terminal's operating lever until it engages.
Only one conductor may be connected to each pin.
The AC cables can be connected to the AC terminals without ferrules.
L1 | Phase conductor |
Nsens | Neutral conductor* |
L2 | Phase conductor |
* Valid for grid configurations with neutral conductors.
Fasten the grounding cable to the ground electrode terminal using a screwdriver (TX20) and a torque of 1.475 ft lbs / 2 Nm.
Insert the AC terminal into the AC slot until it engages.
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:
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!
Solar module strings must not be grounded.
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:
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!
Solar module strings must not be grounded.
Danger from incorrect operation and work that is not carried out properly.
This can result in severe personal injury and damage to property.
The commissioning, maintenance, and service work in the inverter's power stage set may only be carried out by Fronius-trained service personnel in accordance with the technical specifications.
Read the installation instructions and operating instructions before installing and commissioning the equipment.
Danger from mains voltage and DC voltage from PV modules that are exposed to light.
This can result in severe personal injury and damage to property.
All connection, maintenance, and service work should only be carried out when the AC and DC sides have been disconnected from the inverter and are de-energized.
Only an authorized electrical engineer is permitted to connect this equipment to the public grid.
Danger of an electric shock due to improperly connected terminals/PV plug connectors.
An electric shock can be fatal.
When connecting, ensure that each pole of a string is routed via the same PV input, e.g.:
+ pole string 1 to the input PV 1.1+ and - pole string 1 to the input PV 1.1-
Danger from damaged and/or contaminated terminals.
This can result in severe personal injury and damage to property.
Prior to connection work, check the terminals for damage and contamination.
Remove any contamination while the equipment is de-energized.
Have defective terminals replaced by an authorized specialist company.
Two independent PV inputs (PV 1 and PV 2) are available. These inputs can be connected to a different number of modules.
When starting for the first time, set up the PV Generator in accordance with the respective configuration (can also be carried out at a later date in the Device Configuration > Components menu area).
IMPORTANT!
The installation must be carried out in accordance with the nationally applicable standards and directives.
Module array settings:
PV 1: ON
PV 2: OFF
IMPORTANT!
The maximum current load of a single terminal is 22 A.
Module array settings:
PV 1: ON
PV 2: ON
Guide the DC cables through the electrical installation tube.
IMPORTANT!
Guide the cables through the electrical installation tube before stripping them in order to avoid twisting/bending single wires.
Select the cable cross-section in accordance with the instructions in Permitted cables for the electrical connection from page (→).
Strip the insulation of the single conductors by 0.47 inches. Lift to open the terminal's operating lever and insert the stripped single conductor into the slot provided in the terminal as far as it will go.
Then close the terminal's operating lever until it engages.
* For double-insulated cables, observe the max. cross-section of the insulation.
Danger from loose and/or incorrectly clamped single conductors in the terminal.
This can result in severe personal injury and damage to property.
Only connect one single conductor at each slot provided in the terminal.
Check that the single conductors are secure in the terminal.
Make sure that the single conductor has been fully inserted into the terminal and that no single wires are protruding out of the terminal.
Use a suitable measuring instrument to check the voltage and polarity of the DC cabling. Remove both DC terminals from the slots.
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. 600 VDC)
Insert the DC terminals into the respective slot until they engage.
Danger due to incorrect operation and incorrectly performed work.
This can result in serious injury and damage to property.
Commissioning as well as maintenance and service work on the inverter and battery must only be carried out by service personnel trained by the respective inverter or battery manufacturer and only within the scope of the respective technical regulations.
Read the Installation and Operating Instructions provided by the respective manufacturer before installing and commissioning the equipment.
Danger due to mains voltage and DC voltage from solar modules that are exposed to light and from batteries.
This can result in serious injury and damage to property.
Ensure that the AC and DC side of the inverter and the battery are de-energized before carrying out any connection, maintenance, or service tasks.
Only an authorized electrical engineer is permitted to connect this equipment to the public grid.
Danger due to damaged and/or contaminated terminals.
This can result in serious injury and damage to property.
Before making any connections, check the terminals for damage and contamination.
Remove contamination in the de-energized state.
Have defective terminals repaired by an authorized specialist.
Danger due to incorrect operation and incorrectly performed work.
This can result in serious injury and damage to property.
Commissioning as well as maintenance and service work on the inverter and battery must only be carried out by service personnel trained by the respective inverter or battery manufacturer and only within the scope of the respective technical regulations.
Read the Installation and Operating Instructions provided by the respective manufacturer before installing and commissioning the equipment.
Danger due to mains voltage and DC voltage from solar modules that are exposed to light and from batteries.
This can result in serious injury and damage to property.
Ensure that the AC and DC side of the inverter and the battery are de-energized before carrying out any connection, maintenance, or service tasks.
Only an authorized electrical engineer is permitted to connect this equipment to the public grid.
Danger due to damaged and/or contaminated terminals.
This can result in serious injury and damage to property.
Before making any connections, check the terminals for damage and contamination.
Remove contamination in the de-energized state.
Have defective terminals repaired by an authorized specialist.
Danger 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 (→).
Manually push the battery cables through the DC bushings.
* The battery ground conductor must be connected to the ground electrode terminal of the inverter,
IMPORTANT!
Before stripping the insulation, push the cables through the DC bushings to prevent individual wires being bent or broken.
Select the cable cross-section in accordance with the instructions in Permitted cables for the electrical connection from page (→).
Strip the insulation of the individual 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.
Danger due to individual conductors in the terminal that are loose and/or improperly connected.
This can result in serious injury and damage to property.
Only connect one single conductor in the slot provided for each terminal.
Check that the single conductor is held securely in the terminal.
Ensure that all of the single conductor is within the terminal and that no individual wire strands are sticking out of the terminal.
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 connecting the battery.
Danger due to polarity reversal at the terminals.
Serious damage to the PV system may result.
Use a suitable measuring instrument to check the polarity of the DC cabling when the battery is switched on.
The maximum voltage for the battery input must not be exceeded (see Technical data on page (→)).
Insert the DC terminals into the respective slot until they engage.
IMPORTANT!
Information for the battery-side connection can be found in the installation instructions from the relevant manufacturer.
Danger from incorrect installation, commissioning, operation or incorrect use.
This can result in severe personal injury and damage to property.
Single 120 / 220 / 240 volt supply. Do not connect multi-wire branch circuits!
Only trained and qualified personnel are authorized to install and commission the system, and only within the scope of the technical regulations.
The Installation Instructions and Operating Instructions must be read carefully prior to use.
If anything is unclear, contact your vendor immediately.
Danger from damaged and/or contaminated terminals.
This can result in severe personal injury and damage to property.
Prior to connection work, check the terminals for damage and contamination.
Remove any contamination while the equipment is de-energized.
Have defective terminals replaced by an authorized technician.
Limited rapid shutdown function in backup power mode (PV Point and Essential Backup)
If PV Point or Essential Backup is configured, rapid shutdown cannot be triggered via the loss of grid connection. This can result in serious personal injury and damage to the PV system.
A WSD switch must be installed for all backup power modes (PV-Point and Essential Backup) (see Installing the WSD (wired shutdown)). The rapid shutdown is then triggered via WSD.
Power supply via the PV point is dependent on the available PV power
If the PV modules are not supplying enough power, interruptions may occur.
Do not connect any loads that require an interruption-free supply.
IMPORTANT!
The valid national laws, standards, and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied.
It is highly recommended that the specific installation be agreed with the grid operator and explicitly approved by this operator. This obligation applies to system constructors in particular (e.g., installers).
Danger from incorrect installation, commissioning, operation or incorrect use.
This can result in severe personal injury and damage to property.
Single 120 / 220 / 240 volt supply. Do not connect multi-wire branch circuits!
Only trained and qualified personnel are authorized to install and commission the system, and only within the scope of the technical regulations.
The Installation Instructions and Operating Instructions must be read carefully prior to use.
If anything is unclear, contact your vendor immediately.
Danger from damaged and/or contaminated terminals.
This can result in severe personal injury and damage to property.
Prior to connection work, check the terminals for damage and contamination.
Remove any contamination while the equipment is de-energized.
Have defective terminals replaced by an authorized technician.
Limited rapid shutdown function in backup power mode (PV Point and Essential Backup)
If PV Point or Essential Backup is configured, rapid shutdown cannot be triggered via the loss of grid connection. This can result in serious personal injury and damage to the PV system.
A WSD switch must be installed for all backup power modes (PV-Point and Essential Backup) (see Installing the WSD (wired shutdown)). The rapid shutdown is then triggered via WSD.
Power supply via the PV point is dependent on the available PV power
If the PV modules are not supplying enough power, interruptions may occur.
Do not connect any loads that require an interruption-free supply.
IMPORTANT!
The valid national laws, standards, and provisions, as well as the specifications of the relevant grid operator are to be taken into account and applied.
It is highly recommended that the specific installation be agreed with the grid operator and explicitly approved by this operator. This obligation applies to system constructors in particular (e.g., installers).
All loads that are to be supplied via the OP terminal must be protected by means of a ground fault circuit interrupter.
In order to ensure the ground fault circuit interrupter operates properly, a connection must be established between the neutral conductor N' (OP) and equipment grounding (GND).
Wiring proposal recommended by Fronius, see page (→).
Turn off the automatic circuit breaker. Set the DC disconnector to the "Off" switch position.
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.
Danger from faulty or incorrect bores.
This may lead to injuries to the eyes and hands as a result of flying debris and sharp edges, as well as damage to the inverter.
When drilling, wear suitable protective goggles.
Only use a step drill when drilling.
Ensure that nothing on the inside of the device is damaged (e.g., the connection block).
Adapt the diameter of the bore to match the corresponding connection.
Deburr the bores using a suitable tool.
Remove the drilling residues from the inverter.
Drill out the knockout with a step drill.
Guide the mains cable through the conduit from below.
Remove the OP terminal.
Strip the insulation of the single conductors by 0.47 inches / 12 mm.
The cable cross-section must be between AWG 16 and AWG 8. 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.
Only one conductor may be connected to each pin. The lines can be connected without ferrules.
L1´ | Phase conductor |
N´ | Neutral conductor |
N´ | Ground conductor |
The ground conductor must have a cross-section of AWG 14-8.
Fasten the ground conductor and PEN conductor to the ground electrode terminal using a screwdriver (TX20) and a torque of 1.47 ft-lbs / 2 Nm.
Insert the OP terminal into the OP slot until it engages.
For test mode, a battery charge of min. 30% is recommended.
A description on how to run test mode can be found in the backup power checklist (https://www.fronius.com/en/search-page, item number: 42,0426,0365).
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 and one battery 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 | Quantity | Quantity |
---|---|---|---|
Modbus 0 (M0) | 0 | 4 | |
0 | 2 | ||
0 | 1 | ||
Modbus 1 (M1) | 1 | 3 |
Example 2:
Input | Battery | Quantity | Quantity |
---|---|---|---|
Modbus 0 (M0) | 1 | 3 | |
Modbus 1 (M1) | 0 | 4 | |
0 | 2 | ||
0 | 1 |
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 and one battery 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 | Quantity | Quantity |
---|---|---|---|
Modbus 0 (M0) | 0 | 4 | |
0 | 2 | ||
0 | 1 | ||
Modbus 1 (M1) | 1 | 3 |
Example 2:
Input | Battery | Quantity | Quantity |
---|---|---|---|
Modbus 0 (M0) | 1 | 3 | |
Modbus 1 (M1) | 0 | 4 | |
0 | 2 | ||
0 | 1 |
Drill out the knockout with a step drill.
Run the data communication cables through the electrical installation tube from below.
Strip 10 mm/ 0.39 inch 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.
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 Permissible cables for the data communication connection on page (→).
Twist the cable shield and insert into the "SHIELD" slot.
IMPORTANT!
Improperly fitted shielding can cause data communication problems.
For the wiring proposal recommended by Fronius, see page (→).
It may be possible for the system to function without terminating resistors. However, owing to interference, the use of terminating resistors according to the following overview is recommended for trouble-free operation.
For permissible cables and max. distances for the data communication area, refer to the chapter headed Permissible cables for the data communication connection on page (→).
IMPORTANT!Terminating resistors that are not positioned as illustrated can result in interference in the data communication.
Limited rapid shutdown function in backup power mode (PV Point and Essential Backup)
If PV Point or Essential Backup is configured, rapid shutdown cannot be triggered via the loss of grid connection. This can result in serious personal injury and damage to the PV system.
A WSD switch must be installed for all backup power modes (PV-Point and Essential Backup) (see Installing the WSD (wired shutdown)). The rapid shutdown is then triggered via WSD.
IMPORTANT!
The push-in WSD terminal in the inverter's connection area is delivered with a bypass ex works as standard. The bypass must be removed when installing a trigger device or a WSD chain.
The WSD switch of the first inverter with connected trigger device in the WSD chain must be in position 1 (master). The WSD switch of all other inverters should be in position 0 (slave).
Max. distance between two devices: 109 yd / 100 m
max. number of devices: 28
* Floating contact of the trigger device (e.g., central grid and system protection). If several floating contacts are used in a WSD chain, these must be connected in series.
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.
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).
Clip the housing cover in at the top of the inverter.
Press on the lower part of the housing cover and tighten the two screws 180° to the right using a TORX® screwdriver (TX20).
Turn the DC disconnector to the "On" switch position. Switch on the automatic circuit breaker. For systems with a battery, observe the switch-on sequence as per chapter Suitable batteries on page (→).
IMPORTANT! Open WLAN Access Point with the optical sensor, see chapter Button functions and LED status indicator on page (→)
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.
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).
Clip the housing cover in at the top of the inverter.
Press on the lower part of the housing cover and tighten the two screws 180° to the right using a TORX® screwdriver (TX20).
Turn the DC disconnector to the "On" switch position. Switch on the automatic circuit breaker. For systems with a battery, observe the switch-on sequence as per chapter Suitable batteries on page (→).
IMPORTANT! Open WLAN Access Point with the optical sensor, see chapter Button functions and LED status indicator on page (→)
When starting the inverter for the first time, various setup settings must be configured.
If the setup is canceled before completion, the input data is not saved and the start screen with the installation wizard is shown once again. The data is saved in the event of an interruption, e.g., a power failure. Commissioning is continued at the point at which the interruption occurred after the power supply is restored. If the setup was interrupted, the inverter feeds energy into the grid at maximum 500 W and the operating status LED flashes yellow.
The country setup can only be set when starting the inverter for the first time. If the country setup needs to be changed at a later date, contact your installer/technical support.
The Fronius Solar.start app is required for installation. Depending on the mobile device used to perform the installation, the app is available on the relevant platform.
The network wizard and product setup can be performed independently. A network connection is required for the Fronius Solar.web installation wizard.
WLAN:
The network wizard and product setup can be performed independently. A network connection is required for the Fronius Solar.web installation wizard.
Ethernet:
The network wizard and product setup can be performed independently. A network connection is required for the Fronius Solar.web installation wizard.
To start up the inverter again, follow the steps listed above in reverse order.
IMPORTANT!
Wait for the capacitors of the inverter to discharge!
To start up the inverter again, follow the steps listed above in reverse order.
IMPORTANT!
Wait for the capacitors of the inverter to discharge!
IMPORTANT!
Depending on the authorization of the user, settings can be made in the individual menu areas.
IMPORTANT!
Depending on the authorization of the user, settings can be made in the individual menu areas.
IMPORTANT!
Depending on the authorization of the user, settings can be made in the individual menu areas.
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 requiring backup power, the set values are not taken into account.
Charging of the battery from other external producers is enabled/disabled using the "Allow battery charging from additional producers in home network" setting.
Charging of the battery from the public grid is enabled/disabled using the "Allow battery charging from public grid" setting.
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 Essential 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 behavior 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.
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 requiring backup power, the set values are not taken into account.
Charging of the battery from other external producers is enabled/disabled using the "Allow battery charging from additional producers in home network" setting.
Charging of the battery from the public grid is enabled/disabled using the "Allow battery charging from public grid" setting.
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 Essential 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 behavior 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.
Backup power
Off, PV Point, or Essential Backup can be selected for backup power mode.
Essential Backup backup power mode 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 Essential Backup backup power mode.
IMPORTANT!
When configuring PV Point 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 4 pins can be selected for load management here. Additional load management settings are available in the Load management menu item.
Default: Pin 1
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 | Value range | Description |
---|---|---|
Mode | Off | The MPP tracker is deactivated. |
Auto | The inverter uses the voltage at which the max. possible output of the MPP tracker is possible. | |
Fixed | The MPP tracker uses the voltage defined in UDC fixed. | |
UDC fixed | 80 ‑ 530 V | The inverter uses the fixed voltage that is used on the MPP tracker. |
Dynamic Peak Manager
| Off | Function is deactivated. |
On | The entire solar module string is checked for optimization potential and determines the best possible voltage for the supply of energy from the inverter into the grid. | |
On (MLSD) | The entire solar module string is checked for optimization. The inverter can communicates with module level shutdown devices (MLSD). |
Ripple control signal
Ripple control signals are signals that are sent by the energy company in order to switch controllable loads on and off. Depending on the installation situation, ripple control signals can be dampened or amplified by the inverter. This can be counteracted if necessary by applying the following settings.
Parameter | Value range | Description |
---|---|---|
Reduction of influence | Off | Function is deactivated. |
On | Function is activated. | |
Frequency of the 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 infeed point must be entered here. |
Measure against RCD false triggers
(when using a 30 mA residual current circuit breaker)
A residual current circuit breaker for the AC connecting cable may be required depending on national regulations, the grid operator, and other conditions.
A type A residual current circuit breaker is generally sufficient in this case. Nevertheless, false alarms can be triggered for the type A residual current circuit breaker in individual cases and depending on local conditions. For this reason, Fronius recommends using a residual current circuit breaker suitable for frequency inverters with a release current of least 100 mA, taking into account national provisions.
Parameter | Value range | Description |
---|---|---|
Inverter shutdown before 30 mA RCD triggers | 0 | No measures to prevent false alarms. |
1 | The inverter shuts down at 15 mA, before the residual current circuit breaker is triggered. | |
Leakage current factor for reducing RCMU/RCI false alarms | 0 ‑ 0.25 | By reducing the set value, the leakage current is reduced and the intermediate circuit voltage is increased, which slightly lowers the efficiency. A set value of 0.16 ensures optimum efficiency. |
Insulation warning
Parameter | Value range | Description |
---|---|---|
Insulation warning | Off | The insulation warning is deactivated. |
On | The insulation warning is activated. | |
Insulation measurement mode
| Exact | Insulation monitoring takes place with the highest degree of accuracy and the measured insulation resistance is displayed on the user interface of the inverter. |
Fast | Insulation monitoring takes place with a lesser degree of accuracy, whereby the time to take the insulation measurement is shortened and the insulation value is not displayed on the user interface of the inverter. | |
Threshold for the insulation warning | 100000 ‑ | If the value drops below the threshold, status code 1083 is displayed on the user interface of the inverter. |
Backup power
Parameter | Value range | Description |
---|---|---|
Backup power nominal voltage | 120 ‑ 240 V | The nominal phase voltage that is output in backup power mode. |
Backup power undervoltage protection limit value U< [pu] | 0 ‑ 2 % V | This set value represents the limit value for shutting down backup power mode. |
Backup Frequency Offset | -5 - +5 Hz | The setting value can be used to reduce or increase the nominal backup power frequency (see Technical data) by the offset value. The default value is +3 Hz. Connected loads detect that backup power mode is active based on the change in frequency and react accordingly (e.g., by activating energy saving mode) |
Backup power undervoltage protection time U< | 0.04 ‑ 20 s | Trip time for falling below the backup power undervoltage protection limit value. |
Backup power surge protection limit value U> [pu] | 0 ‑ 2 % V | This set value represents the limit value for shutting down backup power mode. |
Backup power surge protection time U> | 0.04 ‑ 20 s | Trip time for exceeding the backup power surge protection limit value. |
Backup power restart delay | 0 ‑ 600 s | Waiting time for restarting backup power mode following a shutdown. |
Backup power restart attempts | 1 ‑ 10 | The max. number of automated restart attempts. Once the max. number of automated restart attempts has been reached, service message 1177 must be manually acknowledged. |
Backup power short circuit switch-off time | 0.001 ‑ 60 s | If a short circuit occurs during backup power mode, backup power mode is interrupted within the set time. |
"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).
"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 decentralized producers are installed in the house, and these are incorporated into the self-consumption control 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 Components on page (→)
.This means that energy can be drawn from the home network and fed into the battery via the Fronius inverter (battery support required). You can restrict how much power is consumed by the Fronius inverter by specifying the maximum AC power (AC max.). A maximum power consumption of the AC rated power of the Fronius 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.
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 timing for when the rule applies is set in the "Time" input fields and by selecting the relevant "Weekdays".
It is not possible to define a time window over midnight (0:00 am).
Example: To set a control from 10 pm to 6 am, two inputs are required: "10 pm-11:59 pm" and "0:00 am-06 am".
"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).
"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 decentralized producers are installed in the house, and these are incorporated into the self-consumption control 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 Components on page (→)
.This means that energy can be drawn from the home network and fed into the battery via the Fronius inverter (battery support required). You can restrict how much power is consumed by the Fronius inverter by specifying the maximum AC power (AC max.). A maximum power consumption of the AC rated power of the Fronius 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.
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 timing for when the rule applies is set in the "Time" input fields and by selecting the relevant "Weekdays".
It is not possible to define a time window over midnight (0:00 am).
Example: To set a control from 10 pm to 6 am, two inputs are required: "10 pm-11:59 pm" and "0:00 am-06 am".
The following examples serve to explain the energy flows. Efficiency levels are not taken into account.
Battery system
PV system to inverter | 1000 W |
Power into the battery | 500 W |
Power output (AC) of the inverter | 500 W |
Set target value at feed-in point | 0 W |
Infeed into the public grid | 0 W |
Consumption in home | 500 W |
Battery system without photovoltaics, including second generator in the house
Power into the battery | 1500 W |
Power consumption (AC) of the inverter | 1500 W |
Second generator in home network | 2000 W |
Set target value at feed-in point | 0 W |
Infeed into the public grid | 0 W |
Consumption in home | 500 W |
Battery system including second generator in the house
PV system to inverter | 1000 W |
Power into the battery | 2500 W |
Power consumption (AC) of the inverter | 1500 W |
Second generator in home network | 2000 W |
Set target value at feed-in point | 0 W |
Infeed into the public grid | 0 W |
Consumption in home | 500 W |
Battery system including second generator in the house
(with AC max. limitation)
PV system to inverter | 1000 W |
Power into the battery | 2000 W |
Power consumption AC max. limited to | 1000 W |
Power consumption (AC) of the inverter | 1000 W |
Second generator in home network | 2000 W |
Set target value at feed-in point | 0 W |
Infeed into the public grid | 500 W |
Consumption in home | 500 W |
A regulation always consists of a restriction or specification, and the time and days of the week when the regulation is active. The time of regulations with the same restriction (e.g., max. charging power) must not overlap.
Max. charging and discharging limits
One max. charging and one max. discharging power can be configured at the same time.
Specify charging range
It is possible to define a charging range using a min. and max. charging limit. In this case, it is not possible to discharge the battery.
Specify discharging range
It is possible to define a discharging range using a min. and max. discharging limit. In this case, it is not possible to charge the battery.
Specify a defined charge
It is possible to specify a defined charging power by setting the min. and max. charging power to the same value.
Specify a defined discharge
It is possible to specify a defined discharging power by setting the min. and max. discharging power to the same value.
Possible applications
The regulations in the Battery Management menu area enable optimal use of the energy generated. Situations may arise, however, in which PV power cannot be used in full due to the time-dependent battery control.
Example | |
---|---|
Fronius inverter (max. output power) | 6000 W |
Defined discharge of the battery | 6000 W |
PV power | 1000 W |
In this case, the inverter would have to reduce the PV power to 0 W, since the output power of the inverter is max. 6000 W and the device is already being fully utilized through discharging.
Since it does not make sense to waste PV power, the power limit is automatically adjusted in battery management such that no PV power is wasted. In the example above, this means that the battery is discharged only at 5000 W, so that the 1000 W PV power can be used.
"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.
IMPORTANT!
An I/O is activated/deactivated after 60 seconds.
All available updates are provided on the product page and in the "Fronius Download Search" area at www.fronius.com .
The guided setup wizard can be accessed here.
All settings
Resets all configuration data, apart from the country setup. Changes to the country setup may only be made by authorized personnel.
All settings without network
Resets all configuration data, apart from the country setup and the network settings. Changes to the country setup may only be made by authorized personnel.
Current messagesAll current events of the linked system components are displayed here.
IMPORTANT!
Depending on the type of event, this must be confirmed via the "tick" button so that it can be further processed.
History
All events of the linked system components that are no longer present are displayed here.
All the information regarding the system and the current settings is displayed and provided for download in this menu area.
The power data and functional scope of the inverter are stored in the license file. If the inverter, power stage set, or data communication area is replaced, the license file must also be replaced.
IMPORTANT!
The support user exclusively enables Fronius Technical Support to configure settings on the inverter via a secure connection. Access is deactivated by clicking the Terminate Support User Session button.
IMPORTANT!
The remote access exclusively enables Fronius Technical Support to access the inverter via a secure connection. In this case, diagnostics data are transmitted, which are used for troubleshooting. The remote access can be activated only upon request by Fronius Support.
When using FRITZ!Box products, Internet access must be configured without any restrictions or limitations. The DHCP Lease Time (validity) must not be set to 0 (=infinite).
LAN:
After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).
WLAN:
The access point of the inverter must be active. This is opened by touching the sensor > Communications LED flashes blue.
After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).
After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).
Access point:
The inverter serves as the access point. A PC or smart device connects directly to the inverter. Connecting to the Internet is not possible. In this menu area, Network Name (SSID) and Network Key (PSK) can be assigned.
It is possible to operate a connection via WLAN and via the access point at the same time.
When using FRITZ!Box products, Internet access must be configured without any restrictions or limitations. The DHCP Lease Time (validity) must not be set to 0 (=infinite).
LAN:
After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).
WLAN:
The access point of the inverter must be active. This is opened by touching the sensor > Communications LED flashes blue.
After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).
After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).
Access point:
The inverter serves as the access point. A PC or smart device connects directly to the inverter. Connecting to the Internet is not possible. In this menu area, Network Name (SSID) and Network Key (PSK) can be assigned.
It is possible to operate a connection via WLAN and via the access point at the same time.
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 or 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712, 713
int + SF: SunSpec Inverter Model 101, 102, 103 or 201, 202, 203 or 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712, 713
"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
"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: 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 or 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712, 713
int + SF: SunSpec Inverter Model 101, 102, 103 or 201, 202, 203 or 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712, 713
"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
"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: This value is invariably defined as 1.
The utility/energy supplier can influence the output power of the inverter with Cloud control. This requires the inverter to have an active Internet connection.
Parameter | Display | Description |
---|---|---|
Cloud control | Off | Cloud control of the inverter is deactivated. |
On | Cloud control of the inverter is activated. |
Profile | Value range | Description |
---|---|---|
Allow cloud control for regulatory purposes (Technician) | Deactivated/Activated | The function may be mandatory for proper operation of the system.* |
Allow cloud control for Virtual Power Plants (Customer) | Deactivated/Activated | If the Allow remote control for regulatory purposes (technician) function is activated (technician access required), the Allow remote control for virtual power plants function is automatically activated and cannot be deactivated.* |
* Cloud control
A virtual power plant is an interconnection of multiple generators. This virtual power plant can be controlled by means of the cloud control via the Internet. An active inverter Internet connection is a prerequisite for this. System data are transferred.
The Fronius Solar API is an IP-based, open JSON interface. If it is activated, IOT devices in the local network can access inverter information without authentication. For security reasons, the interface is deactivated ex works and must be activated if it is required for a third-party application (e.g., EV charger, Smart Home solutions, etc.).
For monitoring, Fronius recommends using Fronius Solar.web, which offers secure access to the inverter status and production information.
In the event of a firmware update to version 1.14.x, the setting is taken from the Fronius Solar API. In systems with a version below 1.14.x, the Solar API is activated; with higher versions, it is deactivated but can be switched on and off via the menu
Activating the Fronius Solar API
Activate the “Activate communication via Solar API” function in the menu area “Communication” → “Solar API” on the user interface of the inverter.
Information regarding connections and the current connection status is displayed in this menu. If there are problems with the connection, a short description of the error is displayed.
Danger from unauthorized fault analyses and repair work.
This can result in severe personal injury and damage to property.
Fault analyses and repair work on the PV system may only be carried out by installers/service technicians from authorized specialist companies in accordance with national standards and regulations.
Risk due to unauthorized access.
Incorrectly set parameters can have a negative effect on the public grid and/or the grid power feed operation of the inverter and result in the loss of standard conformity.
Parameters may only be adjusted by installers/service technicians from authorized specialist companies.
Do not give the access code to third parties and/or unauthorized persons.
Risk due to incorrectly set parameters.
Incorrectly set parameters can have a negative effect on the public grid and/or cause inverter malfunctions and failures and result in the loss of standard conformity.
Parameters may only be adjusted by installers/service technicians from authorized specialist companies.
Parameters may only be adjusted if this has been approved or requested by the utility.
Any parameter adjustments must be made in compliance with nationally applicable standards and/or directives as well as the specifications of the utility.
The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. To apply for the access code required for this menu area, see chapter Requesting inverter codes in Solar.SOS.
The selected country setup for the country in question contains preset parameters in accordance with nationally applicable standards and requirements. Changes may need to be made to the selected country setup depending on local grid conditions and the specifications of the utility.
Danger from unauthorized fault analyses and repair work.
This can result in severe personal injury and damage to property.
Fault analyses and repair work on the PV system may only be carried out by installers/service technicians from authorized specialist companies in accordance with national standards and regulations.
Risk due to unauthorized access.
Incorrectly set parameters can have a negative effect on the public grid and/or the grid power feed operation of the inverter and result in the loss of standard conformity.
Parameters may only be adjusted by installers/service technicians from authorized specialist companies.
Do not give the access code to third parties and/or unauthorized persons.
Risk due to incorrectly set parameters.
Incorrectly set parameters can have a negative effect on the public grid and/or cause inverter malfunctions and failures and result in the loss of standard conformity.
Parameters may only be adjusted by installers/service technicians from authorized specialist companies.
Parameters may only be adjusted if this has been approved or requested by the utility.
Any parameter adjustments must be made in compliance with nationally applicable standards and/or directives as well as the specifications of the utility.
The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. To apply for the access code required for this menu area, see chapter Requesting inverter codes in Solar.SOS.
The selected country setup for the country in question contains preset parameters in accordance with nationally applicable standards and requirements. Changes may need to be made to the selected country setup depending on local grid conditions and the specifications of the utility.
The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. The inverter access code required for this menu area can be requested in the Fronius Solar.SOS portal.
Risk due to unauthorized access.
Incorrectly set parameters can have a negative effect on the public grid and/or the grid power feed operation of the inverter and result in the loss of standard conformity.
Parameters may only be adjusted by installers/service technicians from authorized specialist companies.
Do not give the access code to third parties and/or unauthorized persons.
This system is equipped with a power control system (PCS) according to UL3141. All PCS controlled busbars or conductors shall be protected with suitably rated overcurrent devices appropriately sized for the busbar rating or conductor ampacity.
The Application Guide for the ESS modes is available at the following link:
https://www.fronius.com/~/downloads/Solar%20Energy/Whitepaper/SE_WP_Fronius_GEN24_Plus_ESS_Modes_EN.pdf
Energy companies or utilities can prescribe feed-in limits for an inverter (e.g., max. 70% of the kWp or max. 5 kW).
The feed-in limit takes account of self-consumption in the household before the power of an inverter is reduced:
The PV power that cannot be fed into the public grid is used to charge the battery by the inverter and/or used by the Fronius Ohmpilot so that it does not go to waste. The feed-in limit only becomes active if the power of feeding in is higher than the set power reduction.
Power Control deactivated
The inverter converts all available PV energy and feeds it into the public grid.
Power Control activated
Feeding in limited with the following selection options:
Total DC power of the Entire System
Input field for the total DC power of the entire system in Wp.
This value is used if the Maximum grid feed-in power is specified in %.
Export Limit Control (Soft Limit)
If this value is exceeded, the inverter readjusts down to the set value within the time required by the national standards and regulations.
Maximum grid feed-in power
Input field for the maximum permitted power of feeding into the public network in W or % (setting range: -10 to 100%). If there is no meter in the system, the inverter limits the feed-in power to the set value.
Export Limit Protection (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 Export Limit Control (Soft Limit).
Activate the function Reduce inverter power to 0% for control if meter connection has been lost for control in the event of a fail-safe.
The use of WLAN for communication between the Smart Meter and the inverter is not recommended for the fail-safe function. Even short-term disconnections can cause the inverter to shut down. This problem is particularly common with weak WLAN signal strengths, a slow or overloaded WLAN connection, and automatic channel selection of the router.
Limit multiple inverters (only Soft Limit)
Control of the dynamic feed-in limit for several inverters, for details on configuration, see chapter Dynamic feed-in limitation with multiple inverters on page (→).
Example: Feed-in limit | |
---|---|
PV system to Fronius inverter: | 5000 W |
Consumption in home: | 1000 W |
Maximum permitted power of feeding in of the entire system: | 60% = 3000 W |
|
|
Situation 1: The battery may be charged | |
Power at the grid feed-in point: | 0 W |
Power at the inverter output: | 1000 W |
Power into the battery: | 3000 W |
|
|
Situation 2: The battery must not be charged | |
Power at the grid feed-in point | 3000 W |
Power at the inverter output: | 4000 W |
Power into the battery: | 0 W |
In this example, only 3000 W may be fed into the grid at the grid feed-in point. However, loads that are located between the inverter and grid feed-in point can be supplied by means of additional feed-in of the inverter and are adjusted. |
IMPORTANT!
Select the "Technician" user for settings in this menu item, enter and confirm the password for the "Technician" user. Settings in this menu area must only be made by trained and qualified personnel.
The inverter can be used as a primary device to control the dynamic feed-in limitation of additional Fronius inverters (secondary devices) so that feed-in limitations of energy companies or grid operators can be centrally managed. This control relates to the "soft limit" feed-in limitation (see Feed-in limit). The following prerequisites must be met:
IMPORTANT!
Only one primary meter is required for the primary device.
IMPORTANT!
If a GEN24 inverter is connected to a battery, it must be used as the primary device for dynamic feed-in limitation.
Dynamic feed-in limitation is available with the following device combinations:
Primary device | Secondary devices |
---|---|
Fronius Primo GEN24 | Fronius Primo GEN24, Fronius SnapINverter with Fronius Datamanager 2.0* |
Primary meter
The Fronius Smart Meter acts as the only primary meter and is connected directly to the primary device. The Smart Meter monitors the total output power of all inverters into the grid and passes this information to the primary device via Modbus.
Primary device
The feed-in limitation is configured on the user interface of the inverter:
The primary device automatically scans the network for available secondary devices. A list of the inverters found is displayed. Click "Refresh" to perform the search again.
The following statuses are displayed for the listed inverters:
Adding an inverter manually
Secondary device
A secondary device takes over the feed-in limitation by the primary device. No data is sent to the primary device for the feed-in limitation. The following configurations must be set for power limitation:
User interface of the GEN24 / Tauro secondary device
User interface of the Fronius Datamanager 2.0 secondary device
IMPORTANT!
The secondary device automatically stops energy from being fed into the grid in the event of a communication failure if the Modbus control does not send a signal to the inverter.
General
Settings relevant to a grid operator are made under this menu item. An effective power limit in % and/or a power factor limit can be set.
IMPORTANT!
To view and change settings in this menu item, select the user Technician, and enter and confirm the password for the user Technician. Settings in this menu area may only be made by trained and qualified personnel.
Input pattern (assignment of individual I/Os)
1 click = white (contact open)
2 clicks = blue (contact closed)
3 clicks = gray (not used)
DNO feedback
If the rule is activated, the DNO feedback output (pin 1 recommended) must be configured (e.g., for operating a signal device).
The data format *.fpc is supported for Import and Export.
Controlling Priorities
Used to set controlling priorities for I/O power management (DRM or ripple control receiver), the export limitation, and control via Modbus.
1 = highest priority, 3 = lowest priority
Local priorities of the I/O power management, the export limitation, and the Modbus are overridden by cloud control commands (regulatory purposes and virtual power plants) – see Cloud control on page (→) and by backup power.
The controlling priorities are differentiated internally by power control and inverter shutdown. Inverter shutdown always takes precedence over power control. An inverter shutdown command is always executed, regardless of the priority.
Power controlThe ripple control signal receiver and the I/O terminal of the inverter can be connected to one another as shown in the connection diagram.
For distances of over 11 yd between the inverter and the ripple control signal receiver, a CAT 5 cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).
(1) | Ripple control signal receiver with 4 relays for effective power limitation. |
(2) | I/Os of the data communication area. |
The settings for 4-relay operation are saved.
The ripple control signal receiver and the I/O terminal of the inverter can be connected to one another as shown in the connection diagram.
For distances of over 11 yd between the inverter and the ripple control signal receiver, a CAT 5 cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).
(1) | Ripple control signal receiver with 3 relays for effective power limitation. |
(2) | I/Os of the data communication area. |
The settings for 3-relay operation are saved.
The ripple control signal receiver and the I/O terminal of the inverter can be connected to one another as shown in the connection diagram.
For distances of over 11 yd between the inverter and the ripple control signal receiver, a CAT 5 cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).
(1) | Ripple control signal receiver with 2 relays for effective power limitation. |
(2) | I/Os of the data communication area. |
The settings for 2-relay operation are saved.
The ripple control signal receiver and the I/O terminal of the inverter can be connected to one another as shown in the connection diagram.
For distances of over 10 m between the inverter and the ripple control signal receiver, a CAT 5 cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).
(1) | Ripple control signal receiver with 1 relay for effective power limitation. |
(2) | I/Os of the data communication area. |
The settings for 1-relay operation are saved.
The inverter is designed so that it does not require additional maintenance work. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.
The inverter is designed so that it does not require additional maintenance work. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.
The inverter is designed so that it does not require additional maintenance work. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.
Wipe the inverter, if necessary, with a damp cloth.
Do not use cleaning agents, scouring agents, solvents, or similar products to clean the inverter.
Maintenance and service work may only be carried out by Fronius-trained service technicians.
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.
Danger from mains voltage and DC voltage from PV modules.
This can result in severe personal injury and damage to property.
The connection area must only be opened by an authorized electrician.
The separate power stage set area must only be opened by Fronius-trained service technicians.
Prior to any connection work, ensure that the inverter is de-energized on the AC side and the DC side.
Danger of residual voltage from capacitors.
This can result in severe personal injury and damage to property.
Allow the capacitors of the inverter to discharge (2 minutes).
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.
Switch off power to the inverter and wait for the specified time until the capacitors have discharged and the fan has shut down.
Turn the DC disconnector to the "Off" switch setting.
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.
Remove any build-up of dirt on the heat sink and fan using compressed air, a cloth or a brush.
Risk due to damage to the fan bearing in the event of incorrect cleaning.
Excessive speeds and the application of pressure to the fan bearing can cause damage.
Block the fan and clean with compressed air.
When using a cloth or brush, clean the fan without applying any pressure.
To start up the inverter again, follow the steps listed above in reverse order.
Waste electrical and electronic equipment must be collected separately and recycled in an environmentally sound manner in accordance with the European Directive and national law. Used equipment must be returned to the distributor or through a local authorized collection and disposal system. Proper disposal of the used device promotes sustainable recycling of resources and prevents negative effects on health and the environment.
Packaging materialsDetailed, country-specific warranty conditions are available at www.fronius.com/solar/warranty.
To obtain the full warranty period for your newly installed Fronius product, please register at www.solarweb.com.
Detailed, country-specific warranty conditions are available at www.fronius.com/solar/warranty.
To obtain the full warranty period for your newly installed Fronius product, please register at www.solarweb.com.
Status codes are displayed on the user interface of the inverter in the System > Event Log menu area or in the user menu under Notifications and in Fronius Solar.web*.
* | If configured accordingly, see chapter Fronius Solar.web on page (→). |
Status codes are displayed on the user interface of the inverter in the System > Event Log menu area or in the user menu under Notifications and in Fronius Solar.web*.
* | If configured accordingly, see chapter Fronius Solar.web on page (→). |
Cause: | A device that is connected in the WSD chain has interrupted the signal line (e.g., surge protection device) or the bypass installed ex works as standard has been removed and no trigger device has been installed. |
Remedy: | If the SPD surge protection device has tripped, the inverter must be repaired by an authorized specialist. |
OR: | Install the bypass installed ex works as standard or a trigger device. |
OR: | Turn the WSD (wired shutdown) switch to position 1 (WSD master). |
WARNING!Danger from work that is not carried out properly. This can result in severe personal injury and damage to property. The installation and connection of an SPD surge protection device may only be carried out by Fronius-trained service personnel in accordance with the technical specifications. Observe safety rules. |
Cause: | An electric arc has been identified on the PV system, and the maximum number of automatic connections within 24 hours has been reached. |
Remedy: | Keep the sensor pressed on the inverter for 3 seconds (max. 6 seconds). |
OR: | On the user interface of the inverter, in the System > Event Log menu area, confirm the status 1173 - ArcContinuousFault. |
OR: | On the user interface of the inverter, in the Notifications user menu, confirm the status 1173 - ArcContinuousFault. |
CAUTION!Danger from damaged components of the PV system Serious personal injury/damage to property may result. Before the status 1173 - ArcContinuousFault is confirmed, the entire photovoltaic system affected must be checked for any possible damage. Damaged components must be repaired by qualified specialists. |
Cause: | An electric arc has been identified on the PV system. |
Remedy: | No action required. |
DC input data | ||
---|---|---|
MPP voltage range | 260 - 480 V | |
Max. input voltage | 600 V | |
Min. input voltage | 65 V | |
Start-up input voltage | 80 V | |
Nominal PV power | at 208 V | 7960 W |
Nominal input voltage | at 208 V | 365 V |
Max. PV array power | at 208 V | 11520 W |
Nominal input current | at 208 V | 21.8 A |
Max. input current |
| |
Max. short circuit current for module array (ISC PV) |
| |
Max. total short circuit current for module array |
| |
Max. continuous utility backfeed current 1) | 0.0 A |
AC output data | ||
---|---|---|
Max. output power | at 208 V | 7680 W |
Max. output power at +140 °F (60 °C) V min / V max | at 208 V | 5060 W / 5940 W |
Nominal AC voltage | 208 V/220 V/240 V | |
Voltage trip limit accuracy | 1% of nominal value | |
Max. continuous output current at Vnom | at 208 V | 36.9 A |
Output overcurrent protection | at 208 V | 50.0 A |
Phases | 1 | |
Max. output fault current per duration (peak / rms over duration) | at 208 V | 682 A / 20.1 A over 396 ms |
Nominal output frequency | 60 Hz | |
Setting range for mains frequency | 45.0 - 66.0 Hz | |
Frequency trip limit accuracy | 0.05 Hz | |
Total harmonic distortion | < 3.0% | |
Power factor (cos phi) | 0.8 - 1 ind./cap. 2) | |
Max. permitted mains impedance Zmax at PCC (mOhm)3) | None |
General data | ||
---|---|---|
Maximum efficiency | at 208 V | 97.2 % |
CEC efficiency | at 208 V | 96.5 % |
Night tare loss | at 208 V | 9.2 W |
Cooling | Controlled forced-air ventilation | |
Protection class | Type 4X | |
Dimensions H × W × D | 23.0 × 20.8 × 7.1 inches (583 x 529 x 180 mm) | |
Weight | 49.05 lbs. (22.25 kg) | |
Shipping dimensions H × W × D | 25.8 × 23.5 × 10.4 inches (654 x 598 x 263 mm) | |
Shipping weight | 57.10 lbs.(25.9 kg) | |
Inverter topology | non-isolated, no transformer | |
Permitted ambient temperature | -40 °F - +140 °F (-40 °C - +60 °C) | |
Permissible humidity | 0 - 100% | |
EMC emission class | B | |
DC/AC overvoltage (according to UL1741 3rd Edition, CSA-C22.2 No.107.1-16) | 2/4 | |
Pollution degree | 2 | |
Safety class (according to IEC 62103) | 1 |
Protection devices | ||
---|---|---|
DC isolation measurement | Error/shutdown at RISO < 500 kOhm | |
DC overload performance | Operating point shift, power limiter | |
DC disconnector | Integrated | |
DC reverse polarity protection | Integrated | |
Arc Fault Circuit Interrupter | AFCI type 1 integrated, according to UL1699B:2024 and F-I-AFPE-1-4-1 according to IEC63027:2023 | |
Rapid shutdown | Integrated, in accordance with UL1741 and CSA C22.2 No.330-23 | |
RCMU | Integrated | |
Active anti-islanding method | Integrated | |
Behavior in the event of overheating | Power limiter, active cooling |
Output data PV Point | ||
---|---|---|
Nominal AC voltage PV Point | 1~NPE 120 V | |
Nominal output power PV Point | at 120 V | 1560 W |
Max. continuous output current | at 120 V | 13.0 A |
Nominal output frequency | 63 Hz | |
Power factor | 0 - 1 ind. / cap.2) | |
Switching time | <22 s. |
Data communication | ||
---|---|---|
WLAN SMA-RP connection | 802.11b/g/n | |
Ethernet (LAN) | RJ 45, 10/100 Mbit | |
Wired shutdown (WSD) | max. 28 devices/WSD chain | |
Modbus RTU SunSpec (2x) | RS485 2-wire | |
Voltage level of digital inputs | low: min. 0 V - max. 1.8 V | |
Input currents of digital inputs
| depending on the input voltage; | |
Total power for digital output | 6 W at 12 V | |
Power per digital output | 1 A at >12.5 V - 24 V |
DC Input data battery4) | ||
---|---|---|
Min. voltage | 150 V | |
Max. voltage | 455 V | |
Max. current | 22 A | |
Max. input | 7680 W | |
DC Inputs | 1 |
Output data Essential Backup5) | ||
---|---|---|
Nominal output power Essential Backup | at 120 V | 7680 W |
Max. continuous output current | at 120 V | 36.9 A |
Nominal output frequency | 63 Hz | |
Power factor | 0.8 - 1 ind. / cap.2) | |
Switching time | <17 s. |
DC input data | ||
---|---|---|
MPP voltage range | 260 - 480 V | |
Max. input voltage | 600 V | |
Min. input voltage | 65 V | |
Start-up input voltage | 80 V | |
Nominal PV power | at 208 V | 7960 W |
Nominal input voltage | at 208 V | 365 V |
Max. PV array power | at 208 V | 11520 W |
Nominal input current | at 208 V | 21.8 A |
Max. input current |
| |
Max. short circuit current for module array (ISC PV) |
| |
Max. total short circuit current for module array |
| |
Max. continuous utility backfeed current 1) | 0.0 A |
AC output data | ||
---|---|---|
Max. output power | at 208 V | 7680 W |
Max. output power at +140 °F (60 °C) V min / V max | at 208 V | 5060 W / 5940 W |
Nominal AC voltage | 208 V/220 V/240 V | |
Voltage trip limit accuracy | 1% of nominal value | |
Max. continuous output current at Vnom | at 208 V | 36.9 A |
Output overcurrent protection | at 208 V | 50.0 A |
Phases | 1 | |
Max. output fault current per duration (peak / rms over duration) | at 208 V | 682 A / 20.1 A over 396 ms |
Nominal output frequency | 60 Hz | |
Setting range for mains frequency | 45.0 - 66.0 Hz | |
Frequency trip limit accuracy | 0.05 Hz | |
Total harmonic distortion | < 3.0% | |
Power factor (cos phi) | 0.8 - 1 ind./cap. 2) | |
Max. permitted mains impedance Zmax at PCC (mOhm)3) | None |
General data | ||
---|---|---|
Maximum efficiency | at 208 V | 97.2 % |
CEC efficiency | at 208 V | 96.5 % |
Night tare loss | at 208 V | 9.2 W |
Cooling | Controlled forced-air ventilation | |
Protection class | Type 4X | |
Dimensions H × W × D | 23.0 × 20.8 × 7.1 inches (583 x 529 x 180 mm) | |
Weight | 49.05 lbs. (22.25 kg) | |
Shipping dimensions H × W × D | 25.8 × 23.5 × 10.4 inches (654 x 598 x 263 mm) | |
Shipping weight | 57.10 lbs.(25.9 kg) | |
Inverter topology | non-isolated, no transformer | |
Permitted ambient temperature | -40 °F - +140 °F (-40 °C - +60 °C) | |
Permissible humidity | 0 - 100% | |
EMC emission class | B | |
DC/AC overvoltage (according to UL1741 3rd Edition, CSA-C22.2 No.107.1-16) | 2/4 | |
Pollution degree | 2 | |
Safety class (according to IEC 62103) | 1 |
Protection devices | ||
---|---|---|
DC isolation measurement | Error/shutdown at RISO < 500 kOhm | |
DC overload performance | Operating point shift, power limiter | |
DC disconnector | Integrated | |
DC reverse polarity protection | Integrated | |
Arc Fault Circuit Interrupter | AFCI type 1 integrated, according to UL1699B:2024 and F-I-AFPE-1-4-1 according to IEC63027:2023 | |
Rapid shutdown | Integrated, in accordance with UL1741 and CSA C22.2 No.330-23 | |
RCMU | Integrated | |
Active anti-islanding method | Integrated | |
Behavior in the event of overheating | Power limiter, active cooling |
Output data PV Point | ||
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Nominal AC voltage PV Point | 1~NPE 120 V | |
Nominal output power PV Point | at 120 V | 1560 W |
Max. continuous output current | at 120 V | 13.0 A |
Nominal output frequency | 63 Hz | |
Power factor | 0 - 1 ind. / cap.2) | |
Switching time | <22 s. |
Data communication | ||
---|---|---|
WLAN SMA-RP connection | 802.11b/g/n | |
Ethernet (LAN) | RJ 45, 10/100 Mbit | |
Wired shutdown (WSD) | max. 28 devices/WSD chain | |
Modbus RTU SunSpec (2x) | RS485 2-wire | |
Voltage level of digital inputs | low: min. 0 V - max. 1.8 V | |
Input currents of digital inputs
| depending on the input voltage; | |
Total power for digital output | 6 W at 12 V | |
Power per digital output | 1 A at >12.5 V - 24 V |
DC Input data battery4) | ||
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Min. voltage | 150 V | |
Max. voltage | 455 V | |
Max. current | 22 A | |
Max. input | 7680 W | |
DC Inputs | 1 |
Output data Essential Backup5) | ||
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Nominal output power Essential Backup | at 120 V | 7680 W |
Max. continuous output current | at 120 V | 36.9 A |
Nominal output frequency | 63 Hz | |
Power factor | 0.8 - 1 ind. / cap.2) | |
Switching time | <17 s. |
DC input data | ||
---|---|---|
MPP voltage range | 260 - 480 V | |
Max. input voltage | 600 V | |
Min. input voltage | 65 V | |
Start-up input voltage | 80 V | |
Nominal PV power | at 208 V | 9790 W |
Max. PV array power | at 208 V | 13500 W |
Nominal input voltage | at 208 V | 365 V |
Nominal input current | at 208 V | 26.8 A |
Max. input current |
| |
Max. short circuit current for module array (ISC PV) |
| |
Max. total short circuit current for module array |
| |
Max. continuous utility backfeed current 1) | 0.0 A |
AC output data | ||
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Max. output power | at 208 V | 9450 W |
Max. output power at +140 °F (60 °C) V min / V max | at 208 V | 5060 W / 5940 W |
Nominal AC voltage | 208 V/220 V/240 V | |
Voltage trip limit accuracy | 1% of nominal value | |
Max. continuous output current at Vnom | at 208 V | 45.45 A |
Output overcurrent protection | at 208 V | 60 A |
Phases | 1 | |
Max. output fault current per duration (peak / rms over duration) | at 208 V | 682 A/ 20.1 A over 396 ms |
Nominal output frequency | 60 Hz | |
Setting range for mains frequency | 45.0 - 66.0 Hz | |
Frequency trip limit accuracy | 0.05 Hz | |
Total harmonic distortion | < 3.0% | |
Power factor (cos phi) | 0.8 - 1 ind./cap. 2) | |
Max. permitted mains impedance Zmax at PCC (mOhm)3) | None |
General data | ||
---|---|---|
Maximum efficiency | at 208 V | 97.2 % |
CEC efficiency | at 208 V | 96.5% |
Night tare loss | at 208 V | 8.4 W |
Cooling | Controlled forced-air ventilation | |
Protection class | Type 4X | |
Dimensions H × W × D | 23.0 × 20.8 × 7.1 inches (583 x 529 x 180 mm) | |
Weight | 49.05 lbs. (22.25 kg) | |
Shipping dimensions W × H × D | 25.8 × 23.5 × 10.4 inches (654 x 598 x 264 mm) | |
Shipping weight | 57.10 lbs. (25.9 kg) | |
Inverter topology | non-isolated, no transformer | |
Permitted ambient temperature | -40 °F - +140 °F(-40 °C - +60 °C) | |
Permissible humidity | 0 - 100% | |
EMC emission class | B | |
DC/AC overvoltage (according to UL1741 3rd Edition, CSA-C22.2 No.107.1-16) | 2/4 | |
Pollution degree | 2 | |
Safety class (according to IEC 62103) | 1 |
Protection devices | ||
---|---|---|
DC isolation measurement | Error/shutdown at RISO < 500 kOhm | |
DC overload performance | Operating point shift, power limiter | |
DC disconnector | Integrated | |
DC reverse polarity protection | Integrated | |
Arc Fault Circuit Interrupter | AFCI type 1 integrated, according to UL1699B:2024 and F-I-AFPE-1-4-1 according to IEC63027:2023 | |
Rapid shutdown | Integrated, in accordance with UL1741 and CSA C22.2 No.330-23 | |
RCMU | Integrated | |
Active anti-islanding method | Integrated | |
Behavior in the event of overheating | Power limiter, active cooling |
Output data PV Point | ||
---|---|---|
Nominal AC voltage PV Point | 1~NPE 120 V | |
Nominal output power PV Point | at 120 V | 1560 W |
Max. continuous output current | at 120 V | 13.0 A |
Nominal output frequency | 63 Hz | |
Power factor | 0 - 1 ind. / cap.2) | |
Switching time | <22 s. |
Data communication | ||
---|---|---|
WLAN SMA-RP connection | 802.11b/g/n | |
Ethernet (LAN) | RJ 45, 10/100 Mbit | |
Wired shutdown (WSD) | max. 28 devices/WSD chain | |
Modbus RTU SunSpec (2x) | RS485 2-wire | |
Voltage level of digital inputs | low: min. 0 V - max. 1.8 V | |
Input currents of digital inputs
| depending on the input voltage; | |
Total power for digital output | 6 W at 12 V | |
Power per digital output | 1 A at >12.5 V - 24 V |
DC Input data battery4) | ||
---|---|---|
Min. voltage | 150 V | |
Max. voltage | 455 V | |
Max. current | 22 A | |
Max. input | 10000 W | |
DC Inputs | 1 |
Output data Essential Backup 5) | ||
---|---|---|
Nominal output power Essential Backup | at 120 V | 9450 W |
Max. continuous output current | at 120 V | 45.5 A |
Nominal output frequency | 63 Hz | |
Power factor | 0.8 - 1 ind. / cap.2) | |
Switching time | <17 s. |
WLAN | |
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Frequency range | 2412 - 2462 MHz |
Channels / power used | Channel: 1-11 b,g,n HT20 |
Modulation | 802.11b: DSSS (1Mbps DBPSK, 2Mbps DQPSK, 5.5/11Mbps CCK) |
1) | The maximum current from the inverter to the PV module if an error occurs in the inverter. Guaranteed by the electrical design of the inverter. |
2) | Depending on the country setup or device-specific settings (ind. = inductive; cap. = capacitive). |
3) | Assured by the electrical design of the inverter. |
4) | The inverter can be upgraded to a GEN24 Plus Hybrid device in the future through the UP.storage software upgrade. This upgrade activates battery functionality, enabling the possibility of a Essential Backup power solution. However, external grid switching devices are required for this functionality. The technical specifications for battery operation and Essential Backup operation are detailed below. |
5) | For Essential Backup, additional external components are required for grid separation. |
General data | |
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Product name | Benedict LS32 E 7905 |
Rated insulation voltage | 1000 VDC |
Rated impulse withstand voltage | 8 kV |
Suitability for insulation | Yes, DC only |
Utilization category and/or PV utilization category | according to IEC/EN 60947-3 utilization category DC-PV2 |
Rated short-time withstand current (Icw) | Rated short-time withstand current (Icw): 1000 A |
Rated short-circuit capacity (Icm) | Rated short-circuit capacity (Icm): 1000 A |
Rated operating current and rated breaking capacity | ||||
---|---|---|---|---|
Rated operating voltage (Ue) | Rated operating current (Ie) | I(make) / I(break) | Rated operating current (Ie) | I(make) / I(break) |
≤ 500 VDC | 14 A | 56 A | 36 A | 144 A |
600 VDC | 8 A | 32 A | 30 A | 120 A |
Number of pins | 1 | 1 | 2 | 2 |