Fronius Primo GEN24 3.0 Plus Operating Instructions Manual
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Fronius Primo GEN24 3.0 Plus Operating Instructions Manual

Grid-connected inverter
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/ Perfect Charging / Perfect Welding / Solar Energy
Fronius Primo GEN24
3.0 Plus / 3.6 Plus / 4.0 Plus
4.6 Plus / 5.0 Plus / 6.0 Plus
42,0426,0302,EN 006-25032021
Fronius prints on elemental chlorine free paper (ECF) sourced from certified sustainable forests (FSC).
Operating instructions
Grid-connected inverter

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Summary of Contents for Fronius Primo GEN24 3.0 Plus

  • Page 1 / Perfect Charging / Perfect Welding / Solar Energy Operating instructions Fronius Primo GEN24 3.0 Plus / 3.6 Plus / 4.0 Plus Grid-connected inverter 4.6 Plus / 5.0 Plus / 6.0 Plus 42,0426,0302,EN 006-25032021 Fronius prints on elemental chlorine free paper (ECF) sourced from certified sustainable forests (FSC).

  • Page 3: Table Of Contents

    Noise emission values EMC measures Backup power Data protection Copyright Protective earthing (PE) General information Fronius Primo GEN24 Device concept Scope of supply Intended use Thermal concept The various operating modes Operating modes – Explanation of symbols Operating mode – Inverter with battery Operating mode –...
  • Page 4 Backup power and energy saving mode Cabling variants including backup power circuits with 1-pin separation e.g. Austria or Australia Functions Transitioning from feeding energy into the grid to backup power mode Transitioning from backup power mode to feeding energy into the grid All-pin separation cabling variant, e.g.
  • Page 5 Connecting the battery communication cables Terminating resistors Installing the WSD (wired shutdown) Closing and commissioning the inverter Closing the inverter's connection area/housing cover, and commissioning Starting the inverter for the first time Button functions and LED status indicator Installation with the app Installation using the web browser Settings - website of the inverter User settings...
  • Page 6 Explanation of footnotes Circuit diagrams Circuit Diagram - PV Point (OP) Circuit Diagram Fronius Primo GEN24 and BYD Battery-Box Premium HV Circuit Diagram Automatic switch to backup power 1-pin double separation - e.g. Austria Circuit Diagram Automatic switch to backup power 1-pin single separation - e.g. Australia Circuit Diagram Automatic switch to backup power 2-pin double separation - e.g.

  • Page 7: Safety Rules

    Safety rules Explanation of WARNING! safety notices Indicates a potentially hazardous situation. ▶ If not avoided, death or serious injury may result. CAUTION! Indicates a situation where damage could occur. ▶ If not avoided, minor injury and/or damage to property may result. NOTE! Indicates a risk of flawed results and possible damage to the equipment.

  • Page 8: Environmental Conditions

    Only operate the device when all protection devices are fully functional. If the protection devices are not fully functional, there is a danger of Injury or death to the operator or a third party Damage to the device and other material assets belonging to the operating company Any safety devices that are not fully functional must be repaired by an authorized spe- cialist before the device is switched on.

  • Page 9: Backup Power

    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 integ- rated DC disconnector on the inverter.

  • Page 10: Protective Earthing (Pe)

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

  • Page 11: General Information

    General information...

  • Page 13: Fronius Primo Gen24

    Reasons for the temperature being too high include a high ambient temperature or insuf- ficient heat dissipation (for example, inadequate heat dissipation when installed in switch cabinets). * Only possible with Fronius GEN24 Plus inverters. ** With suitable battery and cabling. *** Depending on the settings and local standards and regulations.

  • Page 14: Intended Use

    Observe the grid operator's regulations for energy fed into the grid and connection meth- ods. The Fronius GEN24 inverter is a grid-connected inverter with a backup power function – it is not a stand-alone inverter. The following restrictions must therefore be observed in...
  • Page 15 NOTE! Risk due to insufficient cooling of the inverter. This may result in a loss of power in the inverter. ▶ Do not block the fan (for example, with objects that protrude through the touch guard). ▶ Do not cover the ventilation slots, even partially. ▶...

  • Page 16: The Various Operating Modes

    Fronius GEN24 inverter converts direct current into alternating current and charges the battery (battery charging is only possible with Fronius GEN24 Plus inverters). The integrated system monitoring enables the inverter to be integrated into a network by means of WLAN.

  • Page 17: Operating Mode - Inverter With Battery

    Grid supplies the loads in the system if insufficient power is being generated by the PV modules or supplied by the battery. Operating mode – In order to be able to obtain the highest rate of self-consumption with your PV system, a Inverter with bat- battery can be used to store excess energy.

  • Page 18: Operating Mode - Inverter With Battery, Ac-Coupled To Another Inverter

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

  • Page 19: Operating Mode - Inverter With Battery, Further Inverter And Backup Power Function

    Operating mode – Inverter with bat- tery, further inverter and backup power function Energy flow dir- In the case of hybrid inverters, there are four different energy flow directions: ection of the inverter...

  • Page 20: Operating States (Only For Systems With A Battery)

    Solar module – inverter – load/grid Solar module – inverter – battery* Battery – inverter – load/grid* Grid – inverter – battery* * depending on the settings and local standards and regulations. Operating states Battery systems distinguish different operating states. In this case, the relevant current (only for systems operating state is displayed on the website of the inverter or in Solar.web.

  • Page 21: Energy Saving Mode

    Both the inverter and the battery automatically switch to energy saving mode under certain conditions. The inverter switches to energy saving mode if the battery is flat and no PV power is available. Only the inverter's communication with the Fronius Smart Meter and Fronius Solar.web is maintained. Switch-off condi-...

  • Page 22: Indication Of Energy Saving Mode

    Indication of During energy saving mode: energy saving Operating LED for the inverter lights up orange (see Button functions and LED mode status indicator on page 87). The website of the inverter can be reached. All the available data is saved and transmitted to Solar.web. The real-time data can be seen on Solar.web.

  • Page 23: Suitable Battery

    Fronius explicitly points out that the third-party batteries are not Fronius products. Premium Fronius is not the manufacturer, distributor or retailer of these batteries. Fronius accepts no liability and offers no service or guarantees for these batteries. Obsolete firmware/software states may lead to incompatibilities between the inverter and the battery.
  • Page 24 IMPORTANT! To ensure reliable operation with a BYD Battery-Box Premium, the follow- ing switch-on sequence for the system must always be observed. Set the DC disconnector to the "Off" switch position. Turn off the automatic circuit breaker. Switch on the battery. Switch on the automatic circuit breaker.

  • Page 25: Protection Of People And Equipment

    Protection of people and equipment WSD (wired shut- The wired shutdown (WSD) interrupts the inverter's grid power feed if the trigger device down) (switch) has been activated. If an inverter (slave) fails, it is bypassed and the other inverters continue operating. If a second inverter (slave) or the inverter (master) fails, the operation of the entire WSD chain is interrupted.

  • Page 26: Control Elements And Connections

    Control elements and connections Connection area 2 x 5-pin DC push-in terminal Push-in WSD (wired shutdown) terminal Push-in terminals in the data communication area (Modbus, digital inputs and outputs) 3-pin push-in terminal for PV point (OP) 3-pin AC push-in terminal Cable gland/strain-relief device AC 6-pin ground electrode terminal Cable gland/strain-relief device in the data communication area...

  • Page 27: Connection Area Divider

    Connection area divider (10) 10 x DC cable glands (11) Optional cable gland (M16) (12) Optional cable gland (M16 - M20) (13) Optional cable gland (M16 - M32) (14) Optional cable gland (M16 - M25) Connection area The connection area divider separates the high-voltage conductors (DC and AC) from divider the signal lines.

  • Page 28: Dc Disconnector

    DC disconnector The DC disconnector has three switch set- tings: Locked/off (turned to the left) IMPORTANT! In switch settings (1) and (3), a conven- tional padlock can be used to secure the inverter against being switched on/off. The national guidelines must be com- plied with in this respect.

  • Page 29: Internal Schematic Connection Diagram Of The Ios

    Switches the terminating resistor for Modbus 0 (MB0) on/off. Modbus 0 (MB0) switch Position 1: Terminating resistor on (factory setting) Position 0: Terminating resistor off Switches the terminating resistor for Modbus 1 (MB1) on/off. Modbus 1 (MB1) switch Position 1: Terminating resistor on (factory setting) Position 0: Terminating resistor off To operate the inverter.
  • Page 30 CAUTION! Risk of polarity reversal at the terminals due to improper connection of external power supplies. This may result in severe damage to the inverter. ▶ Check the polarity of the external power supply with a suitable measuring device before connecting it. ▶...

  • Page 31: Backup Power Variant - Pv Point (Op)

    Backup power variant - PV Point (OP)

  • Page 33: General

    General PV Point (OP) 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 3 kW, if enough power is avail- able from the solar modules or an optional battery.

  • Page 35: Backup Power Variant - Full Backup

    Backup power variant - Full Backup...

  • Page 37: General

    The inverter is operating in backup power mode. from backup The public grid is functioning correctly again. power mode to The Fronius Smart Meter monitors the grid parameters on the public grid and feeding energy passes this information to the inverter. into the grid The stability of the returned public grid is determined by checking the measured val- ues of the Fronius Smart Meter.

  • Page 38: Cabling Variants Including Backup Power Circuits With 1-Pin Separation E.g. Austria Or Australia

    Public grid available again. feeding energy The Fronius Smart Meter monitors the grid parameters on the public grid and into the grid passes this information to the inverter. The stability of the returned public grid is determined by checking the measured val- ues of the Fronius Smart Meter.

  • Page 39: All-Pin Separation Cabling Variant, E.g. Germany, France, Spain, Uk

    Transitioning The public grid is monitored by the inverter's internal grid and system protection unit from feeding and by the Fronius Smart Meter connected to it. energy into the Failure of the public grid. grid to backup...

  • Page 40: Transitioning From Backup Power Mode To Feeding Energy Into The Grid

    Public grid available again. feeding energy The Fronius Smart Meter monitors the grid parameters on the public grid and into the grid passes this information to the inverter. The stability of the returned public grid is determined by checking the measured val- ues of the Fronius Smart Meter.

  • Page 41: All-Pin Split Separation Cabling Variant (Italy)

    Functions Measuring and transferring the required parameters for energy management and Solar.web by the Fronius Smart Meter. Monitoring of the voltage and frequency grid parameters by the inverter. Disconnecting from the public grid to enable operation in backup power mode if the grid parameters are outside the country-specific standards.

  • Page 42: Transitioning From Backup Power Mode To Feeding Energy Into The Grid

    Public grid available again. feeding energy The Fronius Smart Meter monitors the grid parameters on the public grid and into the grid passes this information to the inverter. The stability of the returned public grid is determined by checking the measured val- ues of the Fronius Smart Meter.

  • Page 43: Installation

    Installation...

  • Page 45: General

    General Quick-lock sys- A quick-lock system (3) is used to mount the connection area cover and front cover. The system is opened and closed with a half-rotation (180°) of the captive screw (1) into the quick-lock spring (2). The system is independent of torque. NOTE! Danger when using a drill driver.
  • Page 46 To comply with European Directive 2012/19/EU on Waste Electrical and Elec- tronic Equipment and its implementation as national law, electrical equipment that has reached the end of its life must be collected separately and returned to an approved recycling facility. Any device that you no longer require must be returned to your distributor or disposed of at an approved collection and recyc- ling facility in your area.

  • Page 47: Installation Location And Position

    For detailed information on the dimen- sions of the inverter, see chapter Fronius Primo GEN24 3 - 6 kW page 157. When installing the inverter on the outer walls of cattle sheds, it is important to main- tain a minimum clearance of 2 m between the inverter and the ventilation and building openings on all sides.

  • Page 48: Choosing The Location Of Third-Party Batteries

    In order to minimise the heating up of the inverter, do not expose it to direct insolation. The inverter should be installed in a protected loca- tion, for example, near the solar modules or under an overhanging roof. IMPORTANT! The inverter must not be installed or used at altitudes above 4000 m.

  • Page 49: Explanation Of Symbols For The Installation Position

    Explanation of symbols for the installation posi- tion 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 to underside 10°). Do not install the inverter on a sloping surface with its connection sockets at the top.
  • Page 50 Do not install the inverter on the ceiling.

  • Page 51: Install The Mounting Bracket And Hang Up The Inverter

    Install the mounting bracket and hang up the inverter Selecting the fix- Use the corresponding fixing materials depending on the subsurface and observe the ing material screw dimension recommendations for the mounting bracket. The installer is responsible for selecting the right type of fixing. Properties of the The mounting bracket (illustration) can mounting bracket...

  • Page 52: Installing The Mounting Bracket On A Mast Or Beam

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

  • Page 53: Attaching The Inverter To The Mounting Bracket

    Attaching the There are integrated grips on the side of inverter to the the inverter which facilitate lifting/attach- mounting bracket ing. 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 aud- ibly clicks into place on both sides.

  • Page 54: Prerequisites For Connecting The Inverter

    Prerequisites for connecting the inverter Permitted cables Cables with the following design can be connected to the terminals of the inverter: Copper: round, solid Copper: round, fine-stranded, up to conductor class 4 Grid connections with push-in terminal* Select a sufficiently large cable cross section based on the actual device output! Power‐...

  • Page 55: Permitted Cables For The Data Communication Area

    AWG 26-18 AWG 26-16 sible LAN connections Fronius recommends using at least CAT 5 STP (shielded twisted pair) cables and a maximum distance of 100 m (109 yd). Cross section of For a standard M32 metric screw joint with a reducer:...

  • Page 56: Cross Section Of The Dc Cable

    A residual current circuit breaker in individual cases and depending on local conditions. For this reason, in accordance with national legislation, Fronius recom- mends that a residual current protection device with a tripping current of at least 30 mA suitable for frequency converters be used.
  • Page 57 Inverter Phases AC output Maximum Recommen- fuse rating ded fuse rat- Fronius Primo GEN24 5.0 kW 5000 W C 63 A C 40 A Fronius Primo GEN24 6.0 kW 6000 W C 63 A C 40 A...

  • Page 58: Connecting The Inverter To The Public Grid (Ac Side)

    Connecting the inverter to the public grid (AC side) Safety WARNING! Danger due to incorrect operation and incorrectly performed work. This can result in serious injury and damage to property. ▶ Read the Installation and Operating Instructions before installing and commissioning the equipment.
  • Page 59 Turn off the automatic circuit breaker. Make sure that the DC disconnector is in the "Off" switch setting. Loosen the five screws of the connection area cover by rotating them 180° to the left using a screwdriver (TX20). Remove the connection area cover from the device.
  • Page 60 Phase conductor Neutral conductor Ground conductor Insert the AC terminal into the AC slot until it engages. Fasten the union nut of the strain-relief device with a torque of 6-7 Nm.

  • Page 61: Connecting Solar Module Strings To The Inverter

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

  • Page 62: Pv Generator - General Information

    WARNING! Danger due to damaged and/or contaminated terminals. This can result in serious injury and damage to property. ▶ Before making any connections, check the terminals for damage and contamination. ▶ Remove contamination in the de-energized state. ▶ Have defective terminals repaired by an authorised specialist. PV generator - 2 independent PV inputs (PV 1 and PV 2) are available.

  • Page 63: Connecting The Solar Module Strings To The Inverter

    Connecting the solar module strings to the inverter Push the DC cables through the DC bush- ings by hand. IMPORTANT! Before stripping the insulation, push the cables through the DC bushings to prevent individual wires being bent or broken.
  • Page 64 Select the cable cross section in accord- ance with the instructions in Permitted cables from page 54. Strip the insulation of the single conduct- ors 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.
  • Page 65 Use a suitable measuring instrument to check the voltage and polarity of the DC cabling. Remove both DC terminals from the slots. CAUTION! Danger due to polarity reversal at the terminals. This may result in severe damage to the inverter. ▶...

  • Page 66: Connecting The Battery To The Inverter

    Connecting the battery to the inverter Safety WARNING! Incorrect operation or poorly executed work can cause serious injury or damage. Commissioning as well as maintenance and service work on the inverter and battery must only be carried out by service personnel trained by the respective inverter or bat- tery manufacturer and only within the scope of the respective technical regulations.
  • Page 67 Manually push the BAT cables through the DC bushings. * Connect the ground conductor of the bat- tery to an external point (e.g. switch cab- inet). In doing so, the minimum cross sec- tion of the battery's ground conductor must be observed.
  • Page 68 Select the cable cross section in accord- ance with the instructions in Permitted cables from page 54. Strip the insulation of the single conduct- ors 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.
  • Page 69 Insert the DC terminals into the respective slot until they engage. Fasten the screws of the cable guide to the housing using a screwdriver (TX20) and a torque of 1.3-1.5 Nm. NOTE! Do not use a drill driver as this could cause overturning.

  • Page 70: Connecting Backup Power - Pv Point (Op)

    In order to ensure the residual current circuit breaker operates properly, a connection must be established between the neutral conductor N' (OP) and the earth. For the Circuit Diagram recommended by Fronius, see Circuit Diagram - PV Point (OP) on page 145.
  • Page 71 Switch off the automatic circuit breaker and DC disconnector. Make sure that the DC disconnector is in the "Off" switch setting. Loosen the five screws of the connection area cover by rotating them 180° to the left using a screwdriver (TX20). Remove the connection area cover from the device.
  • Page 72 Drill out the optional cable guide with a step drill. Insert the strain-relief device into the hole and secure to the torque specified by the manufacturer. Guide the mains cable through the strain- relief device from below. Remove the OP terminal.
  • Page 73 Strip the insulation of the single conduct- ors by 12 mm. The cable cross section must be between 1.5 mm and 10 mm . Lift to open the ter- minal's operating lever and insert the stripped single conductor into the slot provided as far as it will go.
  • Page 74 Insert the OP terminal into the OP slot until it engages. Tighten the union nut of the strain-relief device to the torque specified by the manufacturer.

  • Page 75: Connecting Backup Power - Full Backup

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

  • Page 76: All-Pin Separation Cabling Variant E.g. Germany, France, Spain

    The following points regarding cabling must be considered: The main contacts of contactors K1 and K2 must be installed between the Fronius Smart Meter and the inverter and the residual current circuit breaker of the backup power circuits. The supply voltage for contactors K1 and K2 is provided by the public grid and must be connected to phase 1 (L1) after the Fronius Smart Meter and fused accordingly.

  • Page 77: All-Pin Separation Cabling Variant, E.g. Uk

    The following points regarding cabling must be considered: The main contacts of contactors K1 and K2 must be installed between the Fronius Smart Meter and the residual current circuit breaker of the inverter and the residual current circuit breaker of the backup power circuits.

  • Page 78: All-Pin Separation Cabling Variant, E.g. Italy

    The following points regarding cabling must be considered: The main contacts of contactors K1 and K2 must be installed between the Fronius Smart Meter and the residual current circuit breaker of the inverter and the residual current circuit breaker of the backup power circuits.

  • Page 79: Testing Backup Power Mode

    The following points regarding cabling must be considered: The main contacts of contactors K1 and K2 must be installed between the Fronius Smart Meter and the residual current circuit breaker of the inverter and the residual current circuit breaker of the backup power circuits.

  • Page 80: Connecting The Data Communication Cable

    "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: Quantity Quantity Fronius Input Battery Primary Secondary Ohmpilot meter...

  • Page 81: Routing Data Communication Cables

    Routing data IMPORTANT! communication If data communication cables are wired into the inverter, observe the following points: cables Depending on the number and cross section of the wired data communication cables, remove the corresponding blanking plugs from the sealing insert and insert the data communication cables.
  • Page 82 Guide the data cables first through the strain-relief device union nut and then through the housing opening. Insert the sealing ring between the union nut and the housing opening. Press the data cables into the seal's cable guide. Then press in the seal until it reaches the underside of the strain-relief device.

  • Page 83: Connecting The Battery Communication Cables

    "SHIELD" slot. IMPORTANT! Improperly fitted shielding can cause data communication problems. For the wiring proposal recommended by Fronius, see page 146. Terminating res- It may be possible for the system to function without terminating resistors. However, istors owing to interference, the use of terminating resistors according to the following overview is recommended for trouble-free functioning.

  • Page 85: Installing The Wsd (Wired Shutdown)

    Installing the IMPORTANT! WSD (wired shut- The push-in WSD terminal in the inverter's down) 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).

  • Page 86: Closing And Commissioning The Inverter

    Closing and commissioning the inverter Closing the NOTE! inverter's con- nection area/ The housing cover is fitted with a lock for safety reasons, which allows the hous- housing cover, ing cover on the inverter to be pivoted only when the DC disconnector is switched and commission- off.

  • Page 87: Button Functions And Led Status Indicator

    The status of the connection is shown via the communication LED. To establish the connection, carry out the individual steps in the Fronius Solar.web live app. Sensor functions = WLAN access point (AP) is opened. Flashing blue = WLAN Protected Setup (WPS) is activated.

  • Page 88: Installation With The App

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

  • Page 89: Installation Using The Web Browser

    Open the access point by touching the sensor once → Communication LED: flashes blue. Follow and complete the installation wizard in the individual sections. Add system components in Solar.web and start up the PV system. The network wizard and the product setup can be carried out independently of each other.

  • Page 91: Settings - Website Of The Inverter

    Settings - website of the inverter...

  • Page 93: User Settings

    User settings User login Open the website of the inverter in your browser. In the “Login” menu, log in using your user name and password, or go to the “User” menu and click on the “User login” button and then log in with your user name and password.

  • Page 94: Device Configuration

    To ensure smooth operation in conjunction with other energy producers and in Full Backup backup power mode, it is important to install the Fronius Smart Meter at the feed-in point. The inverter and other producers must be connected to the public grid via the Fronius Smart Meter.
  • Page 95 IMPORTANT! When configuring "PV Point" backup power mode, the information in chapter Safety page must be observed. When configuring "Full Backup" backup power mode, the information in chapter Safety on page must be observed. Backup power nominal voltage When backup power mode is activated, the nominal voltage of the public grid must be selected.

  • Page 96: Demand Response Modes (Drm)

    Demand Here you can enter a value for the apparent power input and the apparent power output Response Modes for the Australia country setup. (DRM)

  • Page 97: Energy Management

    This means that energy can be drawn from the household network and fed into the battery via the Fronius GEN24 Plus inverter. You can restrict how much power is consumed by the Fronius GEN24 Plus inverter by specifying the maximum AC power (AC max.).

  • Page 98: Load Management

    can be set here. Devices having higher priority are actuated first, and subsequently, if there is still excess energy available, the other devices. Load management 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.

  • Page 99: System

    Click on the "Save" button. Update All available updates are made available on the product page and in the "Download search" area under www.fronius.com Firmware update Drag the firmware file into the "Drag&Drop file here" field or select it using "Select file".

  • Page 100: Licence Manager

    Remote maintenance access for the Fronius Support team is enabled. IMPORTANT! Remote maintenance access gives Fronius Technical Support exclusive access to the inverter via a secure connection. Diagnostic data is transmitted here that can be used for troubleshooting purposes. Only enable remote maintenance access following a request from the Fronius Support team.
  • Page 101 Download the service file onto the end device by clicking on the "Download service file" button. Open the website licensemanager.solarweb.com and log in with your user name and password. Drag or upload the service file into the "Drop service file here or click to upload” field. Download the newly generated licence file onto the end device using the "Download license file"...

  • Page 102: Communication

    If a firewall is used for outgoing connections, the following protocols, server addresses and ports must be allowed for successful data transfer: Tcp fronius-se-iot.azure-devices.net:8883 Tcp fronius-se-iot-telemetry.azure-devices.net:8883 Tcp fronius-se-iot-telemetry.azure-devices.net:443 Udp sera-gen24.fronius.com:1194 (213.33.117.120:1194) Tcp froniusseiot.blob.core.windows.net:443 LAN: Enter host name. Select connection type “automatic” or “static”.

  • Page 103: Modbus

    Access point: The inverter acts as the access point. A PC or smart device connects directly with the inverter. It is not possible to connect to the internet. The "Network name (SSID)" and "Network key (PSK)" can be assigned in this menu. Modbus Modbus RTU interface 0 / 1 If one of the two Modbus RTU interfaces is set to Slave, the following input fields are...
  • Page 104 Inverter control via Modbus If this option is activated, the inverter is controlled via Modbus. Inverter control includes the following functions: On/Off Power reduction Specification of a constant power factor (cos phi) Specification of a constant reactive power value Battery control specifications with battery...

  • Page 105: Safety And Grid Requirements

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

  • Page 106: Dynamic Power Regulation With Several Inverters

    IMPORTANT! With two primary meters at the feed-in point without a secondary meter, Fronius SnapIN- verter and Fronius Primo GEN24 inverters cannot be displayed as a combined PV sys- tem in Solar.web. Two individual PV systems must be created in Solar.web.
  • Page 107 IMPORTANT! In order to be able to record all PV system data in Solar.web in full, only the Fronius Primo GEN24 inverter may be created in this PV system. The Fronius SnapINverter data is transmitted from the secondary meter to the Fronius Primo GEN24 inverter and thus displayed in Solar.web.

  • Page 108: I/O Power Management

    "Components" menu area. Configure the secondary meter in the "Device configuration" → "Components" menu area. Settings in the system monitoring of the Fronius SnapInverter: Configure the primary meter at the feed-in point in the "Settings" → "Meter" menu area. Activate the limit for the entire system in the "DNO Editor" → "Dynamic power reduc- tion"...

  • Page 109: Connection Diagram - 4 Relays

    Control priorities For setting the control priorities for the ripple control signal receiver, the feed-in limitation and control via Modbus. 1 = highest priority, 3 = lowest priority Connection dia- The ripple control signal receiver and the I/Os terminal of the inverter can be connected gram - 4 relays to one another in accordance with the connection diagram.

  • Page 110: I/O Power Management Settings - 4 Relays

    I/O power man- agement settings - 4 relays...

  • Page 111: Connection Diagram - 3 Relays

    Connection dia- The ripple control signal receiver and the I/Os terminal of the inverter can be connected gram - 3 relays to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).

  • Page 112: I/O Power Management Settings - 3 Relays

    I/O power man- agement settings - 3 relays...

  • Page 113: Connection Diagram - 2 Relays

    Connection dia- The ripple control signal receiver and the I/Os terminal of the inverter can be connected gram - 2 relays to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).

  • Page 114: I/O Power Management Settings - 2 Relays

    I/O power man- agement settings - 2 relays...

  • Page 115: Connection Diagram - 1 Relay

    Connection dia- The ripple control signal receiver and the I/Os terminal of the inverter can be connected gram - 1 relay to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).

  • Page 116: I/O Power Management Settings - 1 Relay

    I/O power man- agement settings - 1 relay Autotest Description (CEI 0-21) The 'Autotest' can be used to check the protective function required by the Italian stand- ard for monitoring the voltage and frequency limits as well as the trip limits of the inverter during commissioning.
  • Page 117 The limit values are set in the menu area 'Grid Code'. The access code for the 'Grid Code' menu area corresponds to the installer code (PROFI menu) and is only made available to Fronius following a written request. An appropriate application form is available from national technical support.

  • Page 119: Options

    Options...

  • Page 121: Surge Protective Device (Spd)

    WSD Open " is displayed on the inverter's website in the System " → " Event Log " menu or in the user menu under "Notifications as well as in Fronius Solar.web. In this case, the inverter must be repaired by an authorised specialist.

  • Page 122: Installation

    This can result in serious injury and damage to property. ▶ Installing and connecting a surge protective device (SPD) must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations. ▶...
  • Page 123 Loosen the two screws on the underside of the housing cover by rotating them 180° to the left using a screwdriver (TX20). Then lift the housing cover away from the inverter at the bottom and detach upwards. Loosen the five screws of the connection area cover by rotating them 180°...
  • Page 124 Remove the DC push-in terminals from the slots and disconnect them from the cables (only necessary if the installation already exists). Connect the supplied PV+/PV- cables to the respective connections. IMPORTANT! Note the labelling of the cables when con- necting. Connect the supplied cables to the respective connectors on the PC board.
  • Page 125 Insert the PC board into the inverter and secure with the four screws (TX20) sup- plied at a torque of 1.0 ‑ 1.2 Nm. Fasten the ground conductor with a cross section of at least 6 mm² to the ground electrode terminal using a screwdriver (TX20) and a torque of 1.8 - 2 Nm.
  • Page 126 Push the DC push-in terminals into the corresponding slot until there is an audible click. Re-insert the connection area divider. * lay the ground conductor in the integ- rated cable duct. IMPORTANT! When inserting the connection area divider(s), be careful not to kink, pinch, crush or otherwise damage the ground conductor.
  • Page 127 Connect the signal cable to the push-in WSD terminal on the IN- and IN+ slots, observing the labelling. Check whether the WSD switch is in posi- tion 1, adjust if necessary (factory setting: position 1). Place the cover on the connection area. Tighten the five screws by rotating them 180°...

  • Page 128: Commissioning The Inverter

    Clip the housing cover onto the inverter from above. Press on the lower part of the housing cover and tighten the two screws by rotat- ing them 180° to the right using a screw- driver (TX20). Commissioning Connect the solar module strings (+/-). the inverter Switch on the battery connected to the inverter.

  • Page 129: Appendix

    Appendix...

  • Page 131: Care And Maintenance

    ▶ The connection area must only be opened by an authorised electrician. ▶ The separate power stage set area must only be opened by Fronius-trained service technicians. ▶ Prior to any connection work, disconnect the inverter on the AC side and the DC side.
  • Page 132 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 position. Loosen the screws on the underside of the housing cover by rotating them 180°...

  • Page 133: Guarantee Provisions

    Guarantee provisions Fronius manufac- Detailed, country-specific warranty terms are available on the internet: turer's warranty www.fronius.com/solar/warranty To obtain the full warranty period for your newly installed Fronius inverter or storage sys- tem, please register at: www.solarweb.com.

  • Page 134: Components For Automatic Full Backup Backup Power Changeover

    Australia 43,0001,1478 50kA-3 Australia Fronius Smart Meter France 43,0001,0045 TS 100A-1 Spain Fronius Smart Meter TS Australia 43,0001,0046 5kA-3 Fronius Smart Meter Italy 43,0001,3529 240 V-3 UL Grid and system protection unit (fuse protection: 1-pin, 6 A) Other manufacturers and types are permissible if they are technically and functionally identical to the examples below: VMD460-NA-D-2 (Bender GmbH &...
  • Page 135 K3 - modular relay Test standard IEC 60947-4-1 Examples for contactors Finder 22.23.9.012.4000 / Schrack relay RT424012 and relays (bracket RT17017, relay base RT78725) K4 and K5 - installation contactor Number of NC contacts 2 (25 A) Coil voltage 230 V AC (2P) Nominal frequency 50/60 Hz Coil fuse...

  • Page 136: Status Codes And Remedy

    This can result in serious injury and damage to property. ▶ Installing and connecting a surge protective device (SPD) must only be carried out by service personnel trained by Fronius and only within the scope of the respective technical regulations. ▶...

  • Page 137: Technical Data

    Technical data Fronius Primo GEN24 3.0 / 3.0 Plus 3.6 / 3.6 Plus 4.0 / 4.0 Plus DC input data MPP voltage range 190 - 530 V 200 - 530 V 210 - 530 V (at nominal output) Max. input voltage 600 V at 1000 W/m²/-10 °C in an open circuit...
  • Page 138 Fronius Primo GEN24 3.0 / 3.0 Plus 3.6 / 3.6 Plus 4.0 / 4.0 Plus None Max. permitted mains impedance Z on PCC Max. output fault current per period 29 A / 3 ms AC output data PV Point Max. output power...
  • Page 139 Fronius Primo GEN24 3.0 / 3.0 Plus 3.6 / 3.6 Plus 4.0 / 4.0 Plus Sound pressure 42 dB(A) (ref. 20µPa) Safety class (according to IEC62103) Protection devices DC insulation measurement Warning / shutdown at R < 600 kOHM Manifestation of DC overload...
  • Page 140 Fronius Primo GEN24 4.6 / 4.6 Plus 5.0 / 5.0 Plus 6.0 / 6.0 Plus Number of inputs - PV1 Number of inputs - PV2 DC input data battery Max. voltage 455 V Min. voltage 150 V Max. current 22 A Max.
  • Page 141 Fronius Primo GEN24 4.6 / 4.6 Plus 5.0 / 5.0 Plus 6.0 / 6.0 Plus 3680 W Nominal output power (per phase) Nominal output current (per phase) 16 A 3 ~ NPE 220 V / 380 V Nominal grid voltage...

  • Page 142: Explanation Of Footnotes

    Fronius Primo GEN24 4.6 / 4.6 Plus 5.0 / 5.0 Plus 6.0 / 6.0 Plus low: min. 0 V–max. 1.8 V Voltage level of digital inputs high: min. 4.5 V–max. 28.8 V depending on the input voltage; Input currents of digital inputs...

  • Page 143: Circuit Diagrams

    Circuit diagrams...

  • Page 145: Circuit Diagram - Pv Point (Op)

    Circuit Diagram - PV Point (OP) Circuit Diagram...

  • Page 146: Fronius Primo Gen24 And Byd Battery-Box Premium Hv

    Fronius Primo GEN24 and BYD Battery-Box Premium HV Circuit Diagram...

  • Page 147: Automatic Switch To Backup Power 1-Pin Double Separation - E.g. Austria

    Automatic switch to backup power 1-pin double separation - e.g. Austria Circuit Diagram...

  • Page 148: Automatic Switch To Backup Power 1-Pin Single Separation - E.g. Australia

    Automatic switch to backup power 1-pin single separation - e.g. Australia Circuit Diagram...

  • Page 149: Automatic Switch To Backup Power 2-Pin Double Separation - E.g. Germany

    Automatic switch to backup power 2-pin double separation - e.g. Germany Circuit Diagram...

  • Page 150: Automatic Switch To Backup Power 2-Pin Single Separation - E.g. France, Spain

    Automatic switch to backup power 2-pin single separation - e.g. France, Spain Circuit Diagram...

  • Page 151: Automatic Switch To Backup Power 2-Pin Double Separation - E.g. Uk

    Automatic switch to backup power 2-pin double separation - e.g. UK Circuit Diagram...

  • Page 152: Automatic Switch To Backup Power 2-Pin Double Separation With Ext. Grid And System Protection - E.g

    Automatic switch to backup power 2-pin double separation with ext. grid and system protection - e.g. Italy Circuit Diagram...

  • Page 153: Fronius Primo Gen24 With Enwitec Box

    Fronius Primo GEN24 with Enwitec Box Circuit Diagram...

  • Page 154: Wiring Diagram - Surge Protective Device Spd

    Wiring diagram - surge protective device SPD Circuit Diagram...

  • Page 155: Dimensions Of The Inverter

    Dimensions of the inverter...

  • Page 157: Fronius Primo Gen24 3 - 6 Kw

    Fronius Primo GEN24 3 - 6 kW Fronius Primo GEN24 3 - 6 kW...
  • Page 160 FRONIUS INTERNATIONAL GMBH Froniusstraße 1 A-4643 Pettenbach AUSTRIA contact@fronius.com www.fronius.com Under www.fronius.com/contact you will find the addresses of all Fronius Sales & Service Partners and locations...

This manual is also suitable for:

Primo gen24 3.6 plusPrimo gen24 4.0 plusPrimo gen24 4.6 plusPrimo gen24 5.0 plusPrimo gen24 6.0 plusSymo gen24 3.0 plus ... Show all

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