Fronius Symo GEN24 3.0 Operating Instructions Manual
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Fronius Symo GEN24 3.0 Operating Instructions Manual

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Operating
Instructions
Fronius Symo GEN24
3.0 / 3.0 Plus / 4.0 / 4.0 Plus
5.0 / 5.0 Plus
EN
Operating Instructions
42,0426,0388,EN
019-17042023

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Summary of Contents for Fronius Symo GEN24 3.0

  • Page 1 Operating Instructions Fronius Symo GEN24 3.0 / 3.0 Plus / 4.0 / 4.0 Plus 5.0 / 5.0 Plus Operating Instructions 42,0426,0388,EN 019-17042023...

  • Page 3: Table Of Contents

    Environmental conditions Qualified personnel Noise emission values EMC measures Backup power Data protection Copyright Protective earthing (PE) General information Fronius Symo GEN24 Device concept Function overview Fronius UP Scope of supply Intended use Thermal concept Fronius Solar.web Local communication The various operating modes Operating modes –...
  • Page 4 Data communication area Button functions and LED status indicator Internal schematic connection diagram of the IOs Backup power variant - PV Point (OP) General PV Point (OP) Explanation - PV Point (OP) Installation General Quick-lock system Warning notices on the device System component compatibility Installation location and position Choosing the location of the inverter...
  • Page 5 Information Licence manager Support Communication Network Modbus Remote control Fronius Solar API Safety and grid requirements Country setup Feed-in limitation Dynamic power regulation with several inverters I/O power management Connection diagram - 4 relay I/O power management settings - 4 relays...
  • Page 6 Circuit Diagram Fronius Symo GEN24 and BYD Battery-Box Premium HV Circuit Diagram Fronius Symo GEN24 with two BYD Battery-Box Premium HV connected in parallel Circuit Diagram Fronius Symo GEN24 with three BYD Battery-Box Premium HV connected in parallel Circuit Diagram...

  • Page 7: Safety Rules

    Safety rules Explanation of WARNING! safety notices Indicates a potentially hazardous situation. ▶ Death or serious injury may result if appropriate precautions are not taken. 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

    All safety and danger notices on the device: Must be kept in a legible state Must not be damaged Must not be removed Must not be covered, pasted, or painted over Only operate the device when all protection devices are fully functional. If the protection devices are not fully functional, there is a danger of Injury or death to the operator or a third party Damage to the device and other material assets belonging to the operating...

  • Page 9: Emc Measures

    Where an automatic backup power supply is installed, a 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 disconnec- tion on the utility side and deactivation of the replacement power mode by open- ing the integrated DC disconnector on the inverter.

  • Page 10: Data Protection

    voltage. The simultaneous operation of electronic devices in the same backup power supply system should be avoided. Load unbalance When dimensioning three-phase backup power networks, the total output power and the power output per phase of the inverter must be taken into account. IMPORTANT! The inverter may only be operated within the limits of its technical capabilities.

  • Page 11: General Information

    General information...

  • Page 13: Fronius Symo Gen24

    Backup power variant - PV Point (OP) Available as an op- Battery connection* tion** Backup power variant - Full Backup For suitable batteries, see chapter Suitable batteries. The functions are optionally available via Fronius UP (see chapter Fronius UP).

  • Page 14: Fronius Up

    Fronius UP With Fronius UP*, the inverter can be expanded by the authorised specialist to Function overview). include optionally available functions (see chapter The availability of Fronius UP varies from country to country. For more in- formation on Fronius UP and availability, see Installation guide: Fronius GEN24 &...

  • Page 15: Thermal Concept

    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 there- fore be observed in backup power mode: Backup power mode may be in operation for at max. 2000 hours...

  • Page 16: Local Communication

    Fronius recommends testing the Internet connection on site according to the minimum requirements. Local commu- The inverter can be found via the Multicast DNS protocol (mDNS). It is recom- nication mended to search for the inverter by the assigned host name.

  • Page 17: The Various Operating Modes

    Primary meter records the system's load curve and provides measurement data for energy profiling in Fronius Solar.web. The primary meter also controls the dynamic feed-in control. Secondary meter records the load curve of individual loads (e.g. washing machine, lamps, TV, heat pump, etc.) in the consumption branch and provides...

  • Page 18: Operating Mode - Inverter With Battery And Several Smart Meters

    0 0 1 Operating mode – Inverter with battery and sev- 0 0 1 eral Smart Meters 0 0 1 Operating mode - inverter with battery, AC- 0 0 1 coupled to an- other inverter...

  • Page 19: Operating Mode - Inverter With Battery And Ohmpilot

    Operating mode – Inverter with battery and 0 0 1 Ohmpilot Operating mode In the hybrid photovoltaic system, batteries must only be connected to one in- – Inverter with verter with battery support. Batteries cannot be split between multiple inverters battery and ad- with battery support.

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

    PV module – inverter – load/grid PV 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 (only for systems current operating state is displayed on the user interface of the inverter or in with a battery)

  • Page 21: Energy Saving Mode

    Both the inverter and the battery automatically switch to energy sav- ing 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 con-...

  • Page 22: Indication Of Energy Saving Mode

    Indication of en- During energy saving mode: ergy saving Button functions and Operating LED for the inverter lights up orange (see mode LED status indicator on page 32). The user interface of the inverter can be reached. All the available data is saved and transmitted to Solar.web. The real-time data can be seen on Solar.web.

  • Page 23: Suitable Batteries

    Fronius explicitly points out that the third-party batteries are not Fronius products. Fronius is not the manufacturer, distributor or retailer of these batter- ies. Fronius accepts no liability and offers no service or guarantees for these bat- teries. Obsolete firmware/software states may lead to incompatibilities between the in- verter and the battery.

  • Page 24: Lg Resu Flex

    Set the DC disconnector to the "On" switch position. Switch on the auto- matic circuit breaker. LG RESU FLEX LG RESU FLEX 12.9 17.2 Fronius Symo GEN24 3.0 - 10.0* Fronius Symo GEN24 3.0 - 10.0 Plus Number of battery modules Battery support optionally available.
  • Page 25 Switching on the battery Pull off the cover to the right. Pull off the cover of the DC discon- nector to the front. Set the DC discon- nector to the "On" switch position. To refit the battery, follow the steps listed above in reverse order.

  • Page 26: Manual System Start

    Manual system start Requirements There is no energy available from the PV modules or from the public grid. If backup power operation or battery operation are not possible (e.g. deep dis- charge protection of the battery), the inverter and battery switch off. Notification of Status codes about the inactive state of the battery are displayed on the user in- system shut-...

  • Page 27: Protection Of People And Equipment

    Protection of people and equipment Central grid and The inverter offers the option to use the integrated AC relays as coupling system protec- switches in conjunction with a central grid and system protection unit (in accord- tion ance with VDE-AR-N 4105:2018:11 §6.4.1). For this purpose, the central trigger device (switch) must be integrated into the WSD chain as described in the chapter "WSD (Wired Shut Down)".

  • Page 28: Control Elements And Connections

    Control elements and connections Connection area 2 x 4-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) 5-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 29: 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) divider from the signal lines.

  • Page 30: Dc Disconnector

    DC disconnector The DC disconnector has 3 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 complied with in this respect.
  • Page 31 Modbus 0 (MB0) switch Switches the terminating resistor for Modbus 0 (MB0) on/off. Position 1: Terminating resistor on (factory setting) Position 0: Terminating resistor off Modbus 1 (MB1) switch Switches the terminating resistor for Modbus 1 (MB1) on/off. Position 1: Terminating resistor on (factory setting) Position 0: Terminating resistor off To operate the inverter.

  • Page 32: Button Functions And Led Status Indicator

    LED status shown via the operating status indicator LED. In the event of faults, carry out the individual steps in the Fronius Solar.start app. The optical sensor is actuated WLAN access point by touching with a finger. 3-6 sec.

  • Page 33: Internal Schematic Connection Diagram Of The Ios

    LED status indicator The inverter indicates a back-up power overload. Flashing red The network connection is being established via WPS. = WPS search mode. Flashing green The network connection is being established via WLAN AP. = WLAN AP search mode (active for 30 minutes). Flashing blue The network connection is not configured.
  • Page 34 12 V DC 500 mA 12 V TYP A Power limitation...

  • Page 35: Backup Power Variant - Pv Point (Op)

    Backup power variant - PV Point (OP)

  • Page 37: General

    General PV Point (OP) IMPORTANT! If several backup power variants are available, please note that only one backup power variant may be installed and configured. With the PV Point, in the event of a failure of the public grid, 1‑phase elec- trical devices can be connected to the Opportunity Power (OP) terminal and supplied with a maximum power of...

  • Page 39: Installation

    Installation...

  • Page 41: 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 42: System Component Compatibility

    32 - 11 = 21 → Production year 2021 07 = Calendar week 07 Symbols on the rating plate: CE mark – confirms compliance with applicable EU directives and regulations. UKCA mark – confirms compliance with applicable UK directives and regulations.

  • Page 43: Installation Location And Position

    (≥ 9.84 inch) (≥ 17.32 inch) mensions of the inverter, see chapter -25°C - +60°C Fronius Symo GEN24 3-5 kW 0 - 100% page 169. When installing the inverter on the outer walls of cattle sheds, it is important to maintain a minimum clearance of 2 m between the inverter and the ventila- tion and building openings on all sides.

  • Page 44: Choosing The Location Of Third-Party Batteries

    The inverter must not be installed or used at altitudes above 4000 m. Do not install the inverter in: Areas where it may be exposed to ammonia, corrosive gases, acids or salts (e.g. fertiliser storage areas, vent open- ings for livestock stables, chemical plants, tanneries, etc.) During certain operating phases the inverter may produce a slight noise.
  • Page 45 The inverter is suitable for a horizontal installation position. The inverter is suitable for installation on a sloping surface. Do not install the inverter on a sloping surface with its connec- tion sockets at the top. Do not install the inverter at an angle on a vertical wall or column.

  • Page 46: Install The Mounting Bracket And Hang Up The Inverter

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

  • Page 47: Installing The Mounting Bracket On A Mast Or Beam

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

  • Page 48: Attaching The Mounting Bracket To Mounting Rails

    Attaching the IMPORTANT! mounting brack- The mounting bracket must be affixed et to mounting at a minimum of four points. rails Attaching the in- There are integrated grips on the side verter to the of the inverter which facilitate lifting/ mounting brack- attaching.

  • Page 49: Prerequisites For Connecting The Inverter

    Prerequisites for connecting the inverter Permissible Cables with the following design can be connected to the terminals of the invert- cables for the electrical con- nection 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.

  • Page 50: Cross Section Of The Ac Cable

    AWG 26 - 16 AWG 26 - 16 LAN connections Fronius recommends 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 51: Cross Section Of The Dc Cable

    For this reason, in accordance with national legislation, Fronius re- commends that a residual-current cir- cuit breaker with a tripping current of at least 100 mA suitable for frequency converters be used.

  • Page 52: 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 com- missioning the equipment.
  • Page 53 Turn off the automatic circuit breaker. Make sure that the DC disconnector is in the "Off" switch setting. Loosen the five screws of the connec- tion area cover by rotating them 180° to the left using a screwdriver (TX20). Remove the connection area cover from the device.
  • Page 54 Phase conductor Phase conductor Phase conductor Neutral conductor Ground conductor Insert the AC terminal into the AC slot until it engages. Fasten the cap nut of the strain-relief device with a torque of 6 ‑ 7 Nm.

  • Page 55: 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 com- missioning the equipment.

  • Page 56: Module Array - 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 con- tamination. ▶ Remove contamination in the de-energized state. ▶ Have defective terminals repaired by an authorised specialist. Module array - 2 independent PV inputs (PV 1 and PV 2) are available.

  • Page 57: Connecting The Solar Module Strings To The Inverter

    Module array settings: PV 1: ON PV 2: ON PV 1 less than or equal to 20 A (I SC PV1 ) PV 2 less than or equal to 20 A (I SC PV2 ) Connecting the solar module strings to the in- verter Push the DC cables through the DC bushings by hand.
  • Page 58 PUSH...
  • Page 59 Select the cable cross section in ac- cordance with the instructions in Per- missible cables for the electrical con- nection from page 49. Strip the insulation of the single con- ductors by 12 mm. Lift to open the ter- minal's operating lever and insert the stripped single conductor into the slot provided, in each case as far as it will go.
  • Page 60 Use a suitable measuring instrument to check the voltage and polarity of the DC cabling. Remove both DC ter- minals from the slots. CAUTION! Danger due to polarity reversal at the terminals. This may result in severe damage to the inverter. ▶...

  • Page 61: Connecting The Battery To The Inverter

    Connecting the battery to the inverter Safety WARNING! Danger due to incorrect operation and incorrectly performed work. This can result in serious injury and damage to property. ▶ Commissioning as well as maintenance and service work on the inverter and battery must only be carried out by service personnel trained by the respect- ive inverter or battery manufacturer and only within the scope of the re- spective technical regulations.
  • Page 62 Manually push the battery cables through the DC bushings. * The battery ground conductor must be connected externally (e.g. switch BAT+ cabinet). When connecting an LG BAT- RESU FLEX battery, the battery BAT PE ground conductor can be connected in the inverter (see chapter Connecting the LG RESU FLEX ground conductor...
  • Page 63 Select the cable cross section in ac- cordance with the instructions in Per- missible cables for the electrical con- nection from page 49. Strip the insulation of the single con- ductors by 12 mm. Lift to open the ter- minal's operating lever and insert the stripped single conductor into the slot provided, in each case as far as it will go.
  • Page 64 CAUTION! Risk due to overvoltage when using other slots on the terminal. This may result in damage to the bat- tery and/or the PV modules due to dis- charge. ▶ Only use the slots marked BAT for battery connection. CAUTION! Danger due to polarity reversal at the terminals.

  • Page 65: Connecting The Lg Resu Flex Ground Conductor

    Fasten the screws of the cable guide to the housing using a screwdriver (TX20) and a torque of 1.3-1.5 Nm. NOTE! Risk due to overtorque on the strain- relief device. This may result in damage to the strain-relief device. ▶ Do not use a drill driver.

  • Page 66: Connecting Backup Power - Pv Point (Op)

    In order to ensure the residual-current circuit breaker operates properly, a con- nection must be established between the neutral conductor N´ (OP) and earth. For the Circuit Diagram recommended by Fronius, see Circuit Diagram - PV Point (OP)
  • Page 67 Switch off the automatic circuit break- er and DC disconnector. Make sure that the DC disconnector is in the "Off" switch setting. Loosen the five screws of the connec- tion area cover by rotating them 180° to the left using a screwdriver (TX20). Remove the connection area cover from the device.
  • Page 68 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 69 Strip the insulation of the single con- ductors by 12 mm. The cable cross section must be between 1.5 mm and 10 mm . Lift to open the terminal's operating lever and insert the stripped single conductor in- to the slot provided, all the way up to the stop.
  • Page 70 Insert the OP terminal into the OP slot until it engages. Tighten the cap nut of the strain-relief device to the torque specified by the manufacturer.

  • Page 71: Connecting The Data Communication Cable

    "Com- munication” → "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 meter Example 2: Quantity...

  • Page 72: Routing Data Communication Cables

    Routing data IMPORTANT! communication If data communication cables are wired into the inverter, observe the following cables points: Depending on the number and cross section of the wired data communica- tion cables, remove the corresponding blanking plugs from the sealing insert and insert the data communication cables.
  • Page 73 Guide the data cables first through the strain-relief device cap nut and then through the housing opening. Insert the sealing ring between the cap nut and the housing opening. Press the data cables into the seal's cable guide. Then press in the seal until it reaches the underside of the strain-relief device.

  • Page 74: Connecting The Battery Communication Cable

    "SHIELD" slot. IMPORTANT! Improperly fitted shielding can cause data communication problems. For the wiring proposal recommended by Fronius, see page 161. Terminating res- It may be possible for the system to function without terminating resistors. istors However, owing to interference, the use of terminating resistors according to the following overview is recommended for trouble-free functioning.
  • Page 75 OPTION 1 Modbus 1 Modbus 0 Manufacturer manual Manufacturer manual 0 0 1 Modbus 0 / 1 Modbus 0 / 1 (min. CAT 5) (min. CAT 5) OPTION 2 M0 / M1 Manufacturer manual Manufacturer manual 0 0 1 Modbus 0 / 1 Modbus 0 / 1 (min.

  • Page 76: Installing The Wsd (Wired Shutdown)

    Installing the IMPORTANT! WSD (wired The push-in WSD terminal in the in- shutdown) verter's connection area is delivered with a bypass ex works as standard. The bypass must be removed when in- stalling a trigger device or a WSD chain. The WSD switch of the first inverter with connected trigger device in the WSD chain must be in position 1 (primary device).

  • Page 77: Closing And Commissioning The Inverter

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

  • Page 78: Installation With The App

    / Technical Support team. Installation with The "Fronius Solar.start" app is required for this installation method. Depending the app on the end device with which the installation will be carried out, download the app for the respective platform.
  • Page 79 In the browser address bar, enter and confirm the IP address 192.168.250.181. The installation wizard is opened. Follow the installation wizard in the individual sections and complete the in- stallation. 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 80: Switching Off Current Supply And Restarting The Inverter

    Switching off current supply and restarting the inverter De-energising Turn off the automatic circuit the inverter and breaker. switching it on Turn the DC disconnector to the again "Off" switch position. To start up the inverter again, follow the steps listed above in reverse order.

  • Page 81: Settings - User Interface Of The Inverter

    Settings - user interface of the in- verter...

  • Page 83: User Settings

    User settings User login Open the user interface 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 84: Device Configuration

    To ensure smooth operation in conjunction with other energy producers, it is im- portant 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 85 IMPORTANT! When configuring the backup power mode "PV Point", the notes in the 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.

  • Page 86: Demand Response Modes (Drm)

    Demand Re- Here you can enter a value for the apparent power input and the apparent power sponse Modes output for the Australia country setup. (DRM) Inverter "Enforce Standby" When the function is activated, the feed-in mode of the inverter is interrupted. This enables a powerless shutdown of the inverter and protects its components.
  • Page 87 Nevertheless, false alarms can be triggered for the type A residual-current cir- cuit breaker in individual cases and depending on local conditions. For this reas- on, in accordance with national legislation, Fronius recommends that a residual- current circuit breaker with a tripping current of at least 100 mA suitable for fre- quency converters be used.
  • Page 88 Parameter Value range Description "Backup Under- 0 ‑ 2%V The setting value is used to set the limit voltage Protec- value for switching off backup power tion Limit U< mode, [pu]" e. g. setting value 0.9 = 90% of the nomin- al voltage.

  • Page 89: 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 maxim- um AC power (AC max.).

  • Page 90: Examples - Time-Dependent Battery Control

    The following values can be selected for the rules of the time-dependent battery control: "Max charging power" The battery is charged with the value set in the input field "Power" at most. "Min charging power" The battery is charged with the value set in the input field "Power" at minim- "Max discharge power"...
  • Page 91 Example: Battery system without photovoltaics, including second producer in the house Second producer in home network 2000 W Target value set at feed-in point Infeed into the public grid Consumption in home 500 W 2000 W TARGET: 0W 1500 W 0 0 1 1500 W 500 W...

  • Page 92: Allowed Battery Control Rules

    Example: Battery system including second producer in the house (with AC max. limitation) Power into the battery 2000 W Power consumption AC max. limited to 1000 W Power consumption (AC) of the inverter 1000 W Second producer in home network 2000 W Target value set at feed-in point Infeed into the public grid...
  • Page 93 Specifying the charging range It is possible to define a charging range with a min. and max. charging limit. In this case, it is not possible for the battery to discharge. Limit Min. charging Max. charging Limit discharge power power 500 W power 3800 W charging power Min.

  • Page 94: Pv Power Reduction

    IMPORTANT! If there is a Fronius Wattpilot in the photovoltaic system, it is seen as a load. The priority for the load management of the Wattpilot must be configured in the Fronius Solar.Wattpilot app.
  • Page 95 I/Os controlled by the produced power are always prioritised over a battery and Fronius Ohmpilot. That is to say that an I/O can switch on and result in the bat- tery no longer being charged or the Fronius Ohmpilot no longer being activated.

  • Page 96: System

    Update All available updates are made available on the product page and in the "Down- load 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". The update will start.

  • Page 97: Licence Manager

    Save as PDF Click on the "Save as PDF" button. Individually select information with the "tick" next to the information or tick to "Select all". Enter the file name in the input field and click on the "Save" button. The PDF is created and displayed. Licence manager The licence file contains the performance data and the scope of functions of the inverter.

  • Page 98: Support

    Click the "Activate support user" button. The support user is activated. IMPORTANT! The support user only allows Fronius Technical Support to implement settings on "End support user access" the inverter via a secure connection. The button deac- tivates the access.

  • Page 99: Communication

    If a firewall is used for outgoing connections, the following protocols, server ad- dresses and ports must be allowed for successful data transfer: Tcp fronius-se-iot.azure-devices.net:8883 Tcp fronius-se-iot-telemetry.azure-devices.net:8883 Tcp fronius-se-iot-telemetry.azure-devices.net:443 Udp sera-gen24.fronius.com:1194 (213.33.117.120:1194) Tcp froniusseiot.blob.core.windows.net:443 Tcp provisioning.solarweb.com:443 Tcp cure-se.fronius.com:443 When using FRITZ!Box products, the Internet access must be configured to be unlimited and unrestricted.

  • Page 100: Modbus

    The connection is established. Access point: The inverter serves as an 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)" "Network key (PSK)" can be assigned in this menu. It is possible to operate a connection via WLAN and via access point simultan- eously.

  • Page 101: Remote Control

    The inverter must have an active internet connection for this. System data is transmitted. Fronius Solar The Fronius Solar API is an Ethernet-based, open JSON interface. When en- abled, IOT devices on the local network can access inverter information without authentication. For security reasons, the interface is deactivated at the factory and should not be activated if it is not required for a third-party application (e.g.
  • Page 102 For monitoring, Fronius recommends using Fronius Solar.web instead, which provides secure access to inverter status and production information. When performing a firmware update to version 1.14.x, the setting of the Fronius Solar API is adopted.

  • Page 103: Safety And Grid Requirements

    M0/M1- / M0/M1+ for Mod- bus data. With the inverter, any PV power that is not allowed to be fed into the public grid is used to charge the battery instead and/or used by the Fronius Ohmpilot so...
  • Page 104 If there is no meter in the system or if a meter has failed, the inverter limits the feed-in power to the set value. Example: Feed-in limitation (without consideration of the efficiency) PV system to Fronius inverter 5000 W Loads in the house 1000 W...

  • Page 105: Dynamic Power Regulation With Several Inverters

    Dynamic power Example 1: Fronius SnapINverter ≤ Fronius Symo GEN24 regulation with Only 1 primary meter is required for the Fronius Symo GEN24 inverter. several inverters The power values shown are an example. Inverter configurations with power val- ues other than those shown in the example are possible, taking into account the criteria for this example.
  • Page 106 IMPORTANT! With two primary meters at the feed-in point without a secondary meter, Fronius SnapINverter and Fronius Symo GEN24 inverters cannot be displayed as a com- bined PV system in Solar.web. Two individual PV systems must be created in Sol-...
  • Page 107 In order to be able to record all PV system data in Solar.web in full, only the Fronius Symo GEN24 inverter may be created in this PV system. The Fronius SnapINverter data is transmitted from the secondary meter to the Fronius Symo GEN24 inverter and thus displayed in Solar.web.
  • Page 108 0 0 1 0 0 1 0 0 1 Settings on the user interface of the Fronius Symo GEN24 inverter: "Device configura- Configure the primary meter at the feed-in point in the tion" → "Components" menu. Configure the secondary meter in the "Device configuration"...

  • Page 109: Connection Diagram - 4 Relay

    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 gram - 4 relay connected to one another in accordance with the connection diagram.

  • Page 110: I/O Power Management

    I/O power man- I/O Power Management agement set- V+/GND tings - 4 relays None None None None None DNO Feedback None not used None None DNO Rules IO control IO control Rule 1 IO control IO control Active Power Power Factor (cos φ) DNO Feedback Rule 2 Active Power...

  • Page 111: Connection Diagram - 3 Relay

    Connection dia- The ripple control signal receiver and the I/Os terminal of the inverter can be gram - 3 relay connected to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver ex- ceeds 10 m, at least a CAT 5 cable is recommended and the shield must be con- nected 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- I/O Power Management agement set- V+/GND tings - 3 relays None None None None None DNO Feedback None not used None None DNO Rules IO control IO control Rule 1 IO control None Active Power Power Factor (cos φ) DNO Feedback Rule 2 Active Power...

  • Page 113: Connection Diagram - 2 Relay

    Connection dia- The ripple control signal receiver and the I/Os terminal of the inverter can be gram - 2 relay connected to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver ex- ceeds 10 m, at least a CAT 5 cable is recommended and the shield must be con- nected 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- I/O Power Management agement set- V+/GND tings - 2 relays None None None None None DNO Feedback None not used None None DNO Rules IO control IO control Rule 1 None None Active Power Power Factor (cos φ) DNO Feedback Rule 2 Active Power...

  • Page 115: Connection Diagram - 1 Relay

    Connection dia- The ripple control signal receiver and the I/Os terminal of the inverter can be gram - 1 relay connected to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver ex- ceeds 10 m, at least a CAT 5 cable is recommended and the shield must be con- nected 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- I/O Power Management agement set- V+/GND tings - 1 relay None None None None None DNO Feedback None not used None None DNO Rules IO control None Rule 1 None None Active Power Power Factor (cos φ) DNO Feedback Rule 2 Active Power...
  • Page 117 "Grid Code" menu. The access code for the "Grid Code" menu corresponds to the installer code (PROFI menu) and is only made available after a written request to Fronius. A corresponding application form is available from the national technical support.

  • Page 119: Options

    Options...

  • Page 121: Surge Protective Device (Spd)

    "Notific- ations" as well as in Fronius Solar.web. In this case, the inverter must be repaired by an authorised specialist. IMPORTANT! The inverter also switches off if the 2-pin signal cable of the surge protective device is interrupted or damaged.

  • Page 122: Energising The Inverter

    PC board 4 TX20 screws Ground conductor 2-pin signal cable PV cable PV+ cable User Information De-energising Turn off the automatic circuit breaker. the inverter Set the DC disconnector to the "Off" switch position. Disconnect connections from the solar module strings (+/-). Switch off the battery connected to the inverter.

  • Page 123: Installation

    Installation CAUTION! Danger due to insufficiently dimensioned ground conductor. Damage to the inverter due to thermal overload can result. ▶ The national standards and guidelines must be observed for dimensioning the ground conductor. Loosen the two screws on the under- side of the housing 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 in- stallation already exists). Connect the supplied PV+/PV- cables to the respective connections. IMPORTANT! Note the labelling of the cables when connecting. Connect the supplied cables to the re- spective connections on the PC board.
  • Page 125 Insert the PC board into the inverter and secure with the four screws (TX20) supplied at a torque of 1.0 ‑ 1.2 Nm. IMPORTANT! max. Depending on national standards and Ø10mm guidelines, a larger cross section of the ground conductor may be required. 1,5 Nm TX 20 Dimension the cable cross section of...
  • Page 126 Strip the insulation on the single con- ductors by 12 mm and secure to the corresponding slot of the terminal on the PC board with a torque of 1.2 - 1.5 IMPORTANT! The cable cross-section must be selec- ted according to the specifications for the respective inverter power category Permissible cables for (see chapter...
  • Page 127 Remove the factory installed bypass on the push-in WSD terminal. 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 position 1, adjust if necessary (factory setting: position 1).

  • Page 128: Commissioning The Inverter

    Place the cover on the connection area. Tighten the five screws by rotat- ing them 180° to the right in the indic- ated order using a screwdriver (TX20). Clip the housing cover onto the invert- er from above. Press on the lower part of the housing cover and tighten the two screws by rotating them 180°...
  • Page 129 Set the DC disconnector to the "On" switch position. Switch on the auto- matic circuit breaker.

  • Page 130: Dc Connector Kit Gen24

    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 com-...

  • Page 131: Scope Of Supply

    WARNING! Danger due to grid voltage and DC voltage from solar modules that are exposed to light. This can result in serious injury and damage to property. ▶ Ensure that the AC and DC side of the inverter are de-energised before car- rying out any connection, maintenance or service tasks.

  • Page 132: Installation

    Disconnect connections from the solar module strings (+/-). Switch off the battery connected to the inverter. Wait for the capacitors of the inverter to discharge (2 minutes). Installation CAUTION! Danger due to insufficiently dimensioned DC cables. Damage to the inverter due to thermal overload can result. ▶...
  • Page 133 Insert the DC Connector GEN24 into the inverter and secure with the two screws (TX20) supplied at a torque of 1.0 ‑ 1.2 Nm. Manually push the DC cables through the DC bushings. Press the lock on the back of the ter- minal and remove the DC terminals.
  • Page 134 Use a slotted screwdriver to push in the lock on the terminal. Insert the stripped single conductor into the slot provided, in each case as far as it will go. Then withdraw the slotted screw- driver from the lock. Connect the solar module strings (+/-). Use a suitable measuring instrument to check the voltage and polarity of the DC cabling.
  • Page 135 Insert the DC terminals into the re- spective 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 136: Commissioning The Inverter

    Commissioning Connect the solar module strings (+/-). the inverter Switch on the battery connected to the inverter. Set the DC disconnector to the "On" switch position. Switch on the auto- matic circuit breaker.

  • Page 137: Appendix

    Appendix...

  • Page 139: Care, Maintenance And Disposal

    ▶ 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 140: Disposal

    Switch off power to the inverter and wait for the specified time (2 minutes) until the capacitors have discharged and the fan has shut down. Turn the DC disconnector to the "Off" switch position. Loosen the screws on the underside of the housing cover by rotating them 180°...
  • Page 141 Packaging materials Collected separately. Check your municipality’s regulations. Reduce the volume of the box.

  • Page 142: Guarantee Provisions

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

  • Page 143: 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 car- ried out by service personnel trained by Fronius and only within the scope of the respective technical regulations. ▶...

  • Page 144: Technical Data

    Technical data Fronius Symo DC input data GEN24 3.0 / 3.0 MPP voltage range 125 - 800 V Plus (at rated power) Max. connected load (P PV max 4500 Wp Total 4500 Wp PV 1 4500 Wp PV 2 Max. processable PV power...
  • Page 145 DC input data Adjustable range of continuous resid- 30 - 300 mA ual current monitoring Cyclic repetition of the insulation res- 24 h istance test (on delivery) Adjustable range for the cyclic repeti- tion of the insulation resistance test DC input data battery 531 V Max.
  • Page 146 AC output data PV Point Nominal frequency 53 / 63 Hz Switchover time < 90 s 0 - 1 Power factor cos phi General data Maximum efficiency 98.1% European efficiency (U 96.7% mpp nom European efficiency (U mpp max European efficiency (U 95.1% mpp min Self-consumption at night...

  • Page 147: Fronius Symo Gen24 4.0 / 4.0 Plus

    Power per digital output 1 A at >12.5 V-24 V (for external supply) (max. 3 A in total) Datalogger/web server Integrated Fronius Symo DC input data GEN24 4.0 / 4.0 MPP voltage range 170 - 800 V Plus (at rated power) Max.
  • Page 148 DC input data Max. inverter backfeed current to the array 20 A PV 1 20 A PV 2 Number of inputs - PV 1 Number of inputs - PV 2 Max. capacity of the module array 800 nF against earth Insulation resistance test limit value 100 kΩ...
  • Page 149 AC input/output data 9.9 A / 4 ms Current (inrush) Nominal frequency 50 / 60 Hz Initial short circuit alternating cur- rent / phase I Total harmonic distortion < 3.5% 0 - 1 (adjustable) Power factor cos phi 0.7 - 1 (recommended) Max.

  • Page 150: Fronius Symo Gen24 5.0 / 5.0 Plus

    Power per digital output 1 A at >12.5 V-24 V (for external supply) (max. 3 A in total) Datalogger/web server Integrated Fronius Symo DC input data GEN24 5.0 / 5.0 MPP voltage range 210 - 800 V Plus (at rated power) Max.
  • Page 151 DC input data Feed-in start-up input voltage in grid 80 V operation Max. input current PV 1 12.5 A PV 2 12.5 A Max. short circuit current of module array (I SC PV 20 A PV 1 20 A PV 2 Max.
  • Page 152 AC input/output data Nominal output power (P 5000 W Max. output power 5000 W Rated apparent power 5000 W Nominal mains voltage 3 ~ NPE 220 V / 380 V 3 ~ NPE 230 V / 400 V Min. mains voltage 154 V Max.
  • Page 153 General data Inverter topology Non-insulated transformerless Permitted ambient temperature -25 °C – +60 °C Permissible humidity 0–100% (incl. condensation) EMC device class DC/AC overvoltage category (in accordance with IEC 62109-1) Pollution degree Sound pressure 36 dB(A) Safety class (according to IEC62103) Protection devices DC isolation measurement Warning / shutdown at R...

  • Page 154: Wlan

    WLAN WLAN Frequency range 2412–2462 MHz Channels / power used Channel: 1–11 b,g,n HT20 Channel: 3–9 HT40 <18 dBm Modulation 802.11b: DSSS (1 Mbps DBPSK, 2 Mbps DQPSK, 5.5/11 Mbps CCK) 802.11g: OFDM (6/9 Mbps BPSK, 12/18 Mbps QPSK, 24/36 Mbps 16- QAM, 48/54 Mbps 64-QAM) 802.11n: OFDM (6.5 BPSK, QPSK, 16-QAM, 64-QAM)

  • Page 155: Integrated Dc Disconnector

    Guaranteed by the electrical configuration of the inverter For backup power mode (PV Point) without battery, a minimum voltage of 150 V is required. Current peak when switching on the inverter. Specified values are standard values; depending on the requirement and PV power, these values must be adjusted accordingly.

  • Page 157: Circuit Diagrams

    Circuit diagrams...

  • Page 159: Circuit Diagram - Pv Point (Op)

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

  • Page 160: Circuit Diagram - Pv Point (Op) Australia

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

  • Page 161: Fronius Symo Gen24 And Byd Battery-Box Premium Hv

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

  • Page 162: Fronius Symo Gen24 With Two Byd Battery-Box Premium Hv Connected In Parallel

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

  • Page 163: Fronius Symo Gen24 With Three Byd Battery-Box Premium Hv Connected In Parallel

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

  • Page 164: Fronius Symo Gen24 And Lg Resu Flex

    Fronius Symo GEN24 and LG RESU FLEX Circuit Diagram...

  • Page 165: Wiring Diagram - Surge Protective Device Spd

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

  • Page 167: Dimensions Of The Inverter

    Dimensions of the inverter...

  • Page 169: Fronius Symo Gen24 3 - 5 Kw

    Fronius Symo GEN24 3 - 5 kW Fronius Symo GEN24 3-5 kW...

This manual is also suitable for:

Symo gen24 3.0 plusSymo gen24 4.0Symo gen24 4.0 plusSymo gen24 5.0Symo gen24 5.0 plus

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