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Protection of people and equipment

Central grid and
system protec-
tion

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

WSD (wired shut-
down)

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

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

For installation, see 

Installing the WSD (wired shutdown)

 on page 

71

.

RCMU

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

Surge protective
device

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

25

EN

Содержание Symo GEN24 3.0

Страница 1: ...hlorine free paper ECF sourced from certified sustainable forests FSC Perfect Charging Perfect Welding Solar Energy Fronius Symo GEN24 3 0 3 0 Plus 4 0 4 0 Plus 5 0 5 0 Plus EN Operating instructions...

Страница 2: ......

Страница 3: ...t 18 Operating mode Inverter with battery and additional inverter 18 Energy flow direction of the inverter 18 Operating states only for systems with a battery 19 Energy saving mode 20 General 20 Switc...

Страница 4: ...ic grid AC side 48 Safety 48 Connecting the inverter to the public grid AC side 48 Connecting solar module strings to the inverter 51 General comments regarding solar modules 51 Safety 51 PV generator...

Страница 5: ...diagram 2 relays 99 I O power management settings 2 relays 100 Connection diagram 1 relay 101 I O power management settings 1 relay 102 Autotest CEI 0 21 102 Options 105 Surge protective device SPD 10...

Страница 6: ...Circuit Diagram 135 Fronius Symo GEN24 and BYD Battery Box Premium HV 136 Circuit Diagram 136 Wiring diagram surge protective device SPD 137 Circuit Diagram 137 Dimensions of the inverter 139 Fronius...

Страница 7: ...the individual poles on the terminals when locking and unlocking General The device has been manufactured in line with the state of the art and according to re cognised safety standards In the event...

Страница 8: ...imensioned cables and leads must be immediately repaired by authorised personnel Maintenance and repair work must only be carried out by an authorised specialist It is impossible to guarantee that bou...

Страница 9: ...pumps Circular saws Blowers and fans High starting current Electrical loads that need to accelerate a large mass usually require a high starting cur rent This can be up to 10 times higher than the no...

Страница 10: ...n the device system or installation to earth to protect against elec tric shock in the event of a fault When installing a safety class 1 inverter see Technical data the ground conductor connection is...

Страница 11: ...General information 11...

Страница 12: ...12...

Страница 13: ...grid As soon as the energy provided by the PV modules is no longer sufficient the power from the battery is fed into the home Depending on the setting power may also be ob tained from the public grid...

Страница 14: ...ll as safety and danger no tices in the Operating Instructions Installation in accordance with chapter Installation from page 35 When configuring the photovoltaic system make sure that all components...

Страница 15: ...he system owner and installer If configured accordingly the inverter transmits data such as power yields load and energy balance to Fronius Sol ar web For more information see Solar web monitoring ana...

Страница 16: ...using excess energy to heat water Primary meter records the system s load curve and provides measurement data for en ergy profiling in Fronius Solar web The primary meter also controls the dynamic fee...

Страница 17: ...ery can be used to store excess energy The battery is coupled to the inverter on the direct current side Multiple current conversion is therefore not required and the effi ciency is increased Operatin...

Страница 18: ...rter with bat tery and Ohmpi lot Operating mode Inverter with bat tery and addition al inverter Energy flow dir ection of the in verter In the case of hybrid inverters there are four different energy...

Страница 19: ...ieved Battery has reached the minimum SOC set or specified by the manufacturer The battery cannot be discharged any further Energy saving mode standby The system has been put into energy saving mode E...

Страница 20: ...The inverter automatically switches into energy saving mode following the battery Switch on condi tions If one of the following conditions is met for at least 30 seconds energy saving mode is ended En...

Страница 21: ...ns and LED status indicator on page 73 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 Energy saving...

Страница 22: ...e documents relating to the inverter can be found at the following address https www fronius com en solar energy installers partners service support tech support The documentation for the BYD Battery...

Страница 23: ...ration with a BYD Battery Box Premium the follow ing switch on sequence for the system must always be observed 1 Switch on the battery 2 Set the DC disconnector to the On switch position Switch on the...

Страница 24: ...if notification via Sol ar web is configured accordingly Manual battery start after system shutdown As soon as energy is available again the inverter starts operation automatically however the batter...

Страница 25: ...verters continue op erating If a second inverter secondary device or the inverter primary device fails the operation of the entire WSD chain is interrupted For installation see Installing the WSD wire...

Страница 26: ...wn terminal 3 Push in terminals in the data communication area Modbus digital inputs and outputs 4 3 pin push in terminal for PV point OP 5 5 pin AC push in terminal 6 Cable gland strain relief device...

Страница 27: ...be re moved for the connection work and must be re inserted 1 Integrated cable duct 2 Recesses for removing the con nection area divider 3 Snap tabs for locking unlocking 4 Defined breaking point for...

Страница 28: ...a communica tion area Modbus terminal Push in terminal for the installation of Modbus 0 Modbus 1 12 V and GND ground The data connection to the connected components is established via the Mod bus term...

Страница 29: ...the web browser on page 75 LAN 2 Ethernet port for internal use only sup port WSD terminal Push in terminal for the WSD installa tion See chapter WSD wired shut down on page 25 USB Power supply max 1...

Страница 30: ...evere damage to the inverter Check the polarity of the external power supply with a suitable measuring device be fore connecting it Connect the cables to the V GND outputs with the correct polarity IM...

Страница 31: ...Backup power variant PV Point OP 31...

Страница 32: ...32...

Страница 33: ...5 kW 230 V max 3 kW In backup power mode some electrical appliances cannot function properly as starting currents are too high for example fridges and freezers It is recommended to switch off non ess...

Страница 34: ...34...

Страница 35: ...Installation 35...

Страница 36: ...36...

Страница 37: ...than 180 Warning notices on the device Technical data warning notices and safety symbols are affixed to the inverter These warning notices and safety symbols must not be removed or painted over They...

Страница 38: ...s of the Independent Communications Authority of South Africa CMIM mark tested in accordance with IMANOR requirements for import regulations and compliance with Moroccan standards Safety symbols Risk...

Страница 39: ...stallation Walls corrugated metal walls mounting rails brick walls concrete walls or oth er non flammable surfaces sufficiently capable of bearing loads Poles installed using mounting rails behind the...

Страница 40: ...rter is essentially designed to be dustproof IP 66 In areas of high dust accumulation dust deposits may collect on the cooling sur faces and thus impair the thermal performance Regular cleaning is req...

Страница 41: ...e inverter at an angle on a vertical wall or column Do not install the inverter horizontally on a vertical wall or pillar Do not install the inverter on a vertical wall or pillar with its connection s...

Страница 42: ...the mounting bracket are intended for screws with a thread diameter of 6 8 mm 0 24 0 32 inches Unevenness on the installation surface for example coarse grained plaster is largely counterbalanced by t...

Страница 43: ...000 mounting kit from Rittal GmbH The Pole clamp kit covers the following dimensions Rectangular mast or beam with a side length of 50 150 mm 1 97 5 91 inches Round mast or beam with a diameter of 40...

Страница 44: ...cilitate lifting attach ing 1 Clip the inverter into the mounting bracket from above The connections must point downwards The lower area of the inverter is pushed into the snap in tabs until the inver...

Страница 45: ...ct a sufficiently large cable cross section based on the actual device output Number of pins Solid Multi stranded Fine stranded Fine stranded with ferrules with without collar 2 x 4 4 10 mm2 4 10 mm2...

Страница 46: ...1 mm2 AWG 26 18 0 14 1 5 mm2 AWG 26 16 min CAT 5 STP shielded twisted pair IO connections with push in terminal Dis tance max Stripping length Solid Fine stran ded Fine stran ded with fer rules with c...

Страница 47: ...ion a type A residual current circuit breaker is generally adequate Nev ertheless false alarms can be triggered for the type A residual current circuit breaker in individual cases and depending on loc...

Страница 48: ...he public grid WARNING Danger due to damaged and or contaminated terminals This can result in serious injury and damage to property Before making any connections check the terminals for damage and con...

Страница 49: ...be con nected with a loop so that if the strain relief device fails the ground conductor is dis connected last For more information on the strain relief device see chapter Cross section of the AC cab...

Страница 50: ...tor L2 Phase conductor L3 Phase conductor N Neutral conductor PE Ground conductor 6 Insert the AC terminal into the AC slot until it engages Fasten the union nut of the strain relief device with a tor...

Страница 51: ...that the voltage for the solar modules specified by the manufacturer corresponds to the actual measured voltage IMPORTANT The solar modules connected to the invert er must comply with the IEC 61730 Cl...

Страница 52: ...in the System configuration menu under the Components menu item PV generator configuration 3 5 kW IMPORTANT The installation must be carried out in accordance with the nationally applicable stand ard...

Страница 53: ...PV 1 ON PV 2 ON Connecting the solar module strings to the in verter 1 2 Push the DC cables through the DC bush ings by hand IMPORTANT Before stripping the insulation push the cables through the DC bu...

Страница 54: ...open the terminal s operating lever and insert the stripped single conductor into the slot provided in each case as far as it will go Then close the operating lever until it engages NOTE No multi wir...

Страница 55: ...move both DC terminals from the slots CAUTION Danger due to polarity reversal at the terminals This may result in severe damage to the inverter Use a suitable measuring instrument to check the polarit...

Страница 56: ...ngage Fasten the screws of the cable guide to the housing using a screwdriver TX20 and a torque of 1 3 1 5 Nm NOTE Do not use a drill driver as this could cause overturning A possible consequence of o...

Страница 57: ...orised electrical engineer is permitted to connect this equipment to the public grid WARNING Danger due to damaged and or contaminated terminals This can result in serious injury and damage to propert...

Страница 58: ...of the bat tery to an external point e g switch cabin et In doing so the minimum cross sec tion of the battery s ground conductor must be observed IMPORTANT Before stripping the insulation push the ca...

Страница 59: ...tor may be connected to each pin The DC cables can be connec ted to the DC terminals without ferrules 5 CAUTION Risk due to overvoltage when using other slots on the terminal This may result in damage...

Страница 60: ...screwdriver TX20 and a torque of 1 3 1 5 Nm NOTE Do not use a drill driver as this could cause overturning A possible consequence of overturning is for example damaging the strain relief device IMPORT...

Страница 61: ...Only trained and qualified personnel are authorised to install and commission the system and only within the scope of the technical regulations The Installation and Operating Instructions must be read...

Страница 62: ...UTION Danger from faulty or incorrect holes This may lead to injuries to the eyes and hands as a result of flying debris and sharp edges as well as damage to the inverter When drilling wear suitable p...

Страница 63: ...ble guide with a step drill 4 Insert the strain relief device into the hole and secure to the torque specified by the manufacturer 5 Guide the mains cable through the strain relief device from below R...

Страница 64: ...ing lever until it engages NOTE Only one conductor may be connected to each pin The conductors can be connected without ferrules 7 L1 Phase conductor N Neutral conductor N PEN conductor NOTE The PEN c...

Страница 65: ...9 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 65 EN...

Страница 66: ...gh data transfer of the battery the battery occupies 2 participants If the In verter control via Modbus function is activated in the Communication Modbus menu no Modbus participants are possible It is...

Страница 67: ...nication cables Make sure that you insert the corresponding blanking plugs into any free openings on the sealing insert IMPORTANT Should the blanking plugs be missing or improperly fitted then protect...

Страница 68: ...opening 4 Insert the sealing ring between the union nut and the housing opening Press the data cables into the seal s cable guide Then press in the seal until it reaches the underside of the strain r...

Страница 69: ...slot IMPORTANT Improperly fitted shielding can cause data communication problems For the wiring proposal recommended by Fronius see page 136 Terminating res istors It may be possible for the system to...

Страница 70: ...Modbus 0 1 min CAT 5 Modbus 0 1 min CAT 5 0 0 16 7 Manufacturer manual OPTION 2 M0 M1 0 1 Manufacturer manual max 300 m max 20 m Modbus 0 1 min CAT 5 Modbus 0 1 min CAT 5 Manufacturer manual OPTION 3...

Страница 71: ...SD switch of the first inverter with connected trigger device in the WSD chain must be in position 1 primary device The WSD switch of all other inverters should be in the 0 secondary device position M...

Страница 72: ...n switch position Switch on the automatic circuit breaker For systems with a battery observe the switch on sequence according to chapter Suitable battery on page 22 IMPORTANT The DC disconnector in th...

Страница 73: ...p The optical sensor is actuated by touching with a finger The status of the connection is shown via the communication LED To establish the connection carry out the individual steps in the Fronius Sol...

Страница 74: ...AN AP 1x WLAN AP search mode active for 30 minutes Flashing blue The network connection is not configured Lights up yellow The inverter is operating correctly a network fault is indicated Lights up re...

Страница 75: ...with the pass word 12345678 4 In the browser address bar enter and confirm the IP address 192 168 250 181 The installation wizard is opened 5 Follow the installation wizard in the individual sections...

Страница 76: ...e inverter Switch off power to the inverter 1 1 Turn off the automatic circuit breaker 2 Turn the DC disconnector to the Off switch position To start up the inverter again follow the steps listed abov...

Страница 77: ...Settings website of the inverter 77...

Страница 78: ...78...

Страница 79: ...nd password or go to the User menu and click on the User login button and then log in with your user name and password IMPORTANT Depending on the user s authorization settings can be executed in the i...

Страница 80: ...rformed IMPORTANT Fronius accepts no liability for damage to third party batteries Primary meter To ensure smooth operation in conjunction with other energy producers it is important to install the Fr...

Страница 81: ...here is an interruption or short circuit on the REF GEN or COM LOAD leads or if the com binations DRM1 DRM8 are invalid The mains relays open REF GEN COM LOAD IO4 IO5 DRM1 Import Pnom 0 without discon...

Страница 82: ...ter You can restrict how much power is con sumed by the Fronius GEN24 inverter by specifying the maximum AC power AC max A maximum power consumption of the AC rated power of the Fronius GEN24 inverter...

Страница 83: ...which the output is deactivated Runtimes Field for enabling a minimum duration for which the output is to be activated for each switch on process Field for enabling the maximum runtime per day Field f...

Страница 84: ...e factory settings All settings All configuration data is reset with the exception of the country setup Changes to the country setup may only be carried out by authorized personnel All settings with n...

Страница 85: ...the inverter Therefore when uploading the licence file the following error occurs The licence has already been installed and the wizard can be closed 1 Complete the installation work see chapter Clos...

Страница 86: ...on The sdp cry file is saved in the downloads Enable remote maintenance 1 Click on the Enable remote maintenance button Remote maintenance access for the Fronius Support team is enabled IMPORTANT Remo...

Страница 87: ...ess subnet mask DNS and gateway 4 Click on the Connect button The connection is established WLAN Establishing a connection via WPS 1 Click the Enable button 2 Activate WPS on the WLAN router see docum...

Страница 88: ...e sender and is checked by the recipient using the same calculation The parity bit can be calculated for even and odd parity SunSpec Model Type Depending on the SunSpec model there are two different s...

Страница 89: ...en JSON interface When enabled IOT devices on the local network can access inverter information without authentication For security reasons the interface is deactivated at the factory and should not b...

Страница 90: ...llers service technicians from author ised specialist companies The parameters may only be adjusted if the energy provider permits or requires this Only adjust the parameters taking into account the n...

Страница 91: ...battery cannot be charged Power at grid feed in point 3000 W Power at inverter output 4000 W Power into the battery 0 W In this example no more than 3000 W may be fed into the grid at the grid feed in...

Страница 92: ...m permitted feed in power of the entire system input field Example 2a Fronius SnapINverter Fronius Symo GEN24 Two primary meters are required for the inverters The power values shown are an example In...

Страница 93: ...onius SnapINverter Fronius Symo GEN24 Two primary meters and one secondary meter are required for the inverters The power values shown are an example Inverter configurations with power values oth er t...

Страница 94: ...gement General In this menu item settings relevant for an electricity company DNO are made An ef fective power limitation in and or a power factor limitation can be set IMPORTANT The service password...

Страница 95: ...a CAT 5 cable is recommended and the shield must be connected at one end to the push in terminal of the data communication area SHIELD 1 Ripple control signal receiver with 4 relays for effective powe...

Страница 96: ...DNO Feedback Active Power 1 cap Power Factor cos Rule 3 0 2 4 6 8 10 1 3 5 7 9 11 30 DNO Feedback Active Power 1 cap Power Factor cos Rule 4 0 2 4 6 8 10 1 3 5 7 9 11 0 DNO Feedback Active Power 1 ca...

Страница 97: ...recommended and the shield must be connected at one end to the push in terminal of the data communication area SHIELD 1 Ripple control signal receiver with 3 relays for effective power limiting 2 I Os...

Страница 98: ...60 DNO Feedback Active Power 1 cap Power Factor cos Rule 3 0 2 4 6 8 10 1 3 5 7 9 11 30 DNO Feedback Active Power 1 cap Power Factor cos Rule 4 0 2 4 6 8 10 1 3 5 7 9 11 0 DNO Feedback Active Power 1...

Страница 99: ...ecommended and the shield must be connected at one end to the push in terminal of the data communication area SHIELD 1 Ripple control signal receiver with 2 relays for effective power limitation 2 I O...

Страница 100: ...11 60 DNO Feedback Active Power 1 cap Power Factor cos Rule 3 0 2 4 6 8 10 1 3 5 7 9 11 30 DNO Feedback Active Power 1 cap Power Factor cos Rule 4 0 2 4 6 8 10 1 3 5 7 9 11 0 DNO Feedback Active Power...

Страница 101: ...ecommended and the shield must be connected at one end to the push in terminal of the data communication area SHIELD 1 Ripple control signal receiver with 1 relay for effective power limiting 2 I Os o...

Страница 102: ...mits of the inverter during commissioning During normal operation the inverter constantly checks the cur rent voltage and frequency actual value of the grid After the start of the autotest various ind...

Страница 103: ...t to check the 10 min average voltage in the phases Save as PDF 1 Click the Save as PDF button 2 Enter the file name in the input field and click on the Print button The PDF is created and displayed N...

Страница 104: ...104...

Страница 105: ...Options 105...

Страница 106: ...106...

Страница 107: ...the user menu under Notifications as well as in Fronius Solar web In this case the inverter must be repaired by an authorised specialist IMPORTANT The inverter also switches off if the 2 pin signal ca...

Страница 108: ...low the safety rules 1 Turn off the automatic circuit breaker Set the DC disconnector to the Off switch po sition 2 Disconnect connections from the solar module strings Switch off the battery connecte...

Страница 109: ...Then lift the housing cover away from the inverter at the bottom and detach from above 2 Loosen the five screws of the connection area cover by rotating them 180 to the left using a screwdriver TX20...

Страница 110: ...tallation already exists 5 Connect the supplied PV PV cables to the respective connections IMPORTANT Note the labelling of the cables when con necting 6 Connect the supplied cables to the re spective...

Страница 111: ...g to the national standards and guidelines and fit a ring cable lug inner diameter 4 mm outer dia meter max 10 mm as well as a corres ponding ferrule Fasten the ground con ductor to the PC board with...

Страница 112: ...specifications for the re spective inverter power category see chapter Permitted cables on page 45 11 Push the DC push in terminals into the corresponding slot until there is an audible click 12 Re i...

Страница 113: ...s on the push in WSD terminal 14 Connect the signal cable to the push in WSD terminal on the IN and IN slots ob serving the labelling 15 Check whether the WSD switch is in posi tion 1 adjust if necess...

Страница 114: ...ing a screwdriver TX20 17 Clip the housing cover onto the inverter from above Press on the lower part of the housing cover and tighten the two screws by rotat ing them 180 to the right using a screw d...

Страница 115: ...2 Set the DC disconnector to the On switch position Switch on the automatic circuit breaker 115 EN...

Страница 116: ...116...

Страница 117: ...Appendix 117...

Страница 118: ...118...

Страница 119: ...from grid voltage and DC voltage from solar modules An electric shock can be fatal The connection area must only be opened by an authorised electrician The separate power stage set area must only be o...

Страница 120: ...r cleaning Excessive speed and pressure on the fan bearing can cause damage Block the fan and clean it with com pressed air When using a cloth or brush clean the fan without applying pressure to the f...

Страница 121: ...rranty Detailed country specific warranty terms are available on the internet www fronius com solar warranty To obtain the full warranty period for your newly installed Fronius inverter or storage sys...

Страница 122: ...e SPD surge protective device is triggered the inverter must be repaired by an authorised specialist Install the bypass ex works or a trigger device Set the WSD wired shutdown switch to position 1 WSD...

Страница 123: ...odules ISC PV 18 75 18 75 A Max short circuit current ISC PV ISC max Total PV1 PV2 37 5 A 18 75 A 18 75 A Max inverter backfeed current to the ar ray 3 18 75 A Number of inputs PV1 2 Number of inputs...

Страница 124: ...0 V Nominal frequency 53 63 Hz 1 Switchover time 90 s Power factor cos phi 2 0 1 General data Maximum efficiency 98 1 European efficiency Umpp nom 96 7 European efficiency Umpp max 96 European efficie...

Страница 125: ...e input resistance 70 kOhm Total power for digital output for internal supply 6 W at 12 V USB not connected Power per digital output for external supply 1 A at 12 5 V 24 V max 3 A in total Datalogger...

Страница 126: ...Rated apparent power 4000 W Nominal grid voltage 3 NPE 220 V 380 V 3 NPE 230 V 400 V Min grid voltage 154 V 1 Max grid voltage 280 V 1 Max output current 8 A Nominal output current at 230 V 5 8 A Cur...

Страница 127: ...03 1 Protection devices DC isolation measurement Warning shutdown at RISO 100 kOHM Overload performance Operating point shift power limiter DC disconnector Integrated RCMU Integrated Data communicatio...

Страница 128: ...80 V Max input current PV1 PV2 12 5 12 5 A Max short circuit current of solar modules ISC PV 18 75 18 75 A Max short circuit current ISC PV ISC max Total PV1 PV2 37 5 A 18 75 A 18 75 A Max inverter ba...

Страница 129: ...ed power 3000 W Nominal output current 13 A Nominal grid voltage 1 NPE 220 V 230 V 240 V Nominal frequency 53 63 Hz 1 Switchover time 90 s Power factor cos phi 2 0 1 General data Maximum efficiency 98...

Страница 130: ...8 V high min 4 5 V max 28 8 V Input currents of digital inputs depending on the input voltage input resistance 70 kOhm Total power for digital output for internal supply 6 W at 12 V USB not connected...

Страница 131: ...of 150 V is required 6 Current peak when switching on the inverter Integrated DC disconnector General data Product name Benedict LS32 E 7905 Rated insulation voltage 1000 VDC Rated impulse with stand...

Страница 132: ...132...

Страница 133: ...Circuit diagrams 133...

Страница 134: ...134...

Страница 135: ...Circuit Diagram PV Point OP Circuit Diagram 135 EN...

Страница 136: ...Fronius Symo GEN24 and BYD Battery Box Premi um HV Circuit Diagram 136...

Страница 137: ...Wiring diagram surge protective device SPD Circuit Diagram 137 EN...

Страница 138: ...138...

Страница 139: ...Dimensions of the inverter 139...

Страница 140: ...140...

Страница 141: ...Fronius Symo GEN24 3 5 kW Fronius Symo GEN24 3 5 kW 141 EN...

Страница 142: ...142...

Страница 143: ...143 EN...

Страница 144: ......

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