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Sofar 100KTLX-G4 User Manual

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USER
MANUAL
SOFAR 100...125KTLX-G4
Shenzhen SOFARSOLAR Co., Ltd.
Shenzhen SOFARSOLAR Co., Ltd.

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  • Page 1 USER MANUAL SOFAR 100...125KTLX-G4 Shenzhen SOFARSOLAR Co., Ltd. Shenzhen SOFARSOLAR Co., Ltd.
  • Page 2 Shenzhen SOFARSOLAR Co., Ltd. Shenzhen SOFARSOLAR Co., Ltd. 11/F, Gaoxinqi Technology Building, District 67, XingDong Community, XinAn Street, Bao’An District, Shenzhen, China SOFARSOLAR GmbH Krämerstrasse 20 72764 Reutlingen Germany Email: service.uk@sofarsolar.com Web: www.sofarsolar.com Document number Issue 01 | 05.2023 English...

  • Page 3: Table Of Contents

    Content Content About this Manual ....... . 6 Copyright declaration ........6 Presentation of warnings .
  • Page 4 Initial Setup..........47 Smartphone app SOFAR setting ......48 Operation .
  • Page 5 Technical Data ........69 11.1 Efficiency Curves ......... 71 11.2 Characteristics curves .

  • Page 6: About This Manual

    This Installation and user manual (hereinafter referred to as the manual) describes the installation, electrical connection, commissioning, maintenance and fault elimination procedures of following products: SOFAR 100KTLX-G4, SOFAR 110KTLX-G4, SOFAR 125KTLX-G4, SOFAR 125KTLX-G4-A. ▶ Carefully read this manual before use and retain it for future reference! ▶...
  • Page 7 About this Manual Warnsymbol Warnsymbol The general danger symbol warns of risk of serious injury when used with the signal words CAUTION, WARNING, and DANGER. Signalwords Signalwords Indicates a danger that results in damage to or destruction NOTICE NOTICE of the inverter. Indicates a hazardous situation which, if not avoided, CAUTION CAUTION...

  • Page 8: Presentation Of Action Instructions

    This is the sequence of action steps that must be followed step by step ▶ This is a single action step This describes the result of the action Note Note Notes are presented in a grey bar. Provides tips essential to the optimal operation of the product. 8/78 SOFAR 100...125KTLX-G4...

  • Page 9: General Safety Information

    General Safety Information General Safety Information General Safety Information This chapter details the safety information pertaining to the installation and operation of the device. If you have any questions or problems after reading the following information, contact SOFARSOLAR. Read and understand the instructions within this manual and familiarise yourself with the relevant safety symbols in this chapter before beginning with the installation of the device and eliminating any faults.

  • Page 10: Intended Use

    Grid Cloud The SOFAR 100...125KTLX-G4 is a grid-coupled PV inverter with multiple MPPTs which converts the direct current generated by PV systems into a three-phase alternating current and feeds it into the public power grid. The AC circuit breaker and DC switch are used as a disconnecting device and must be easily accessible.

  • Page 11: Installation Requirements

    ▶ Ensure sufficient ventilation in order to guarantee an air circulation for the cooling of the inverter. ▶ Installation of SOFAR 100...125KTLX-G4 on-grid inverter must conform with laws, regulations, codes and standards applicable in the jurisdiction. ▶ Before connecting the product to the electrical utility grid, contact the local utility company for allowance.

  • Page 12: Operation

    The internal components of the inverter must NOT be opened without the relevant authorisation. Shenzhen SOFARSOLAR Co., Ltd. assumes no responsibility for any resulting losses or defects. 2.10 2.10 Warranty Warranty ▶ Do not open the inverter or remove any of the labels. Otherwise, SOFARSOLAR shall assume no guarantee. 12/78 SOFAR 100...125KTLX-G4...

  • Page 13: About The Product

    Overview Overview Front side Back side Control panel and display AC connection box Fan cooling box DC connection board Dimensions Dimensions SOFAR 100...125KTLX-G4 L × W × H = 970 x 695 x 325 mm Installation and User Manual 13/78...

  • Page 14: Symbols And Signs On The Inverter

    Read the manual before installing the inverter IP IP Device degree of protection according to EN 60529 Positive and negative poles of the DC input voltage The inverter must always be transported and stored with the arrows pointing upward 14/78 SOFAR 100...125KTLX-G4...

  • Page 15: Power Grid Types

    P P o o w w e e r r G G r r i i d d T T y y p p e e s s Power grid types Power grid types SOFAR 100...125KTLX-G4 are compatible with the following grid types: TN-C-S TN-S...
  • Page 16 The IV curve for each MPPT can be measured on demand and used in the monitor- ing portal to analyze potential issues in the PV array. J. Integrated grid relais The relais can be operated by a central grid protection device to disconnect the inverter within 100 ms. 16/78 SOFAR 100...125KTLX-G4...

  • Page 17: Electrical Block Diagram

    Electrical block diagram Electrical block diagram SOFAR 100...125KTLX-G4 has 20 DC input strings. 10 MPPT tracker’s that converts direct current of the PV array to grid-compliant, three-phase current and feeds it into the utility grid. Both DC and AC side has Surge Protection Device (SPD Type II).

  • Page 18: Installation

    ▶ Wear protection shoes when handling the inverter. ▶ Choose a suitable installation location and surface. ▶ Commission a minimum of two persons with the installation of the inverter. ▶ Do not set down the inverter upside-down. 18/78 SOFAR 100...125KTLX-G4...

  • Page 19: Before Installation

    Installation Before installation Before installation Inverter Storage Inverter Storage If inverter is not installing immediately, storage condition need meet below requirements: • Place inverter into the original package and leave desiccant inside, sealed tight with taps. • Keep the storage temperature around -40 – +70 ℃, Relative humidity 0 – 95 %, no condensation (see chapter11 Technical Data on page 69).
  • Page 20 In the event of any damage or missing components, contact the wholesaler. Image Image Qty Description Description Image Image Qty Description Description SOFAR Rear Panel 100KTLX-G4 125KTLX-G4 PV+ input con- 20 PV- input con- nector nector PV+ metal pin 20 PV- metal pin 20/78 SOFAR 100...125KTLX-G4...

  • Page 21: Installation Tools

    Installation Image Image Qty Description Description Image Image Qty Description Description M6x30 M6x30 Hexagon Hexagon screws screws Manual Warranty Card Outgoing Quality Certifi- inspection cate report COM 16pin USB collection connector (WiFi / Ethernet) Installation tools Installation tools Required tools for installation and electrical connection as following table: Hammer drill Screwdriver Removal tool...

  • Page 22: Selecting An Installation Location

    Install position must not obstruct the disconnect of power. • Place inverter in an appropriate bearing capacity objects. • Location should be avoid touch by children. Choose a suitable position for the installation of the inverter. Ensure that the following requirements have been fulfilled: 22/78 SOFAR 100...125KTLX-G4...
  • Page 23 Installation Installation and User Manual 23/78...

  • Page 24: Installing The Inverter

    Drill, keep the hammer drill perpendicular to the wall and make sure the position of the holes should be suitable for the expansion bolts. Insert the expansion bolt vertically into the hole. Align the bracket with the hole positions, fix the rear panels on the wall by tighten- ing the expansion bolt with the nuts. 24/78 SOFAR 100...125KTLX-G4...
  • Page 25 Installation Lift the inverter and hang it on the bracket, and fixing both sides of inverter with M6 screw (accessories). Installation and User Manual 25/78...
  • Page 26 Installing the bracket on a stand 1. 1. Use wall mount bracket, ensure the pole position are in same level by using level rule and mark the holes. Drilling holes by using a Hammer Drill. Use M10 screw and M10 flat washer to secure the wall bracket. M10 x 50 screw and M 10 flat washer need self-preparation. 26/78 SOFAR 100...125KTLX-G4...
  • Page 27 Installation Lift the inverter and hang it on the wall bracket, then fixing both sides of Inverter with a M6 screw. See step on page 24. The stand must be firmly anchored to the ground to avoid shaking and tipping. Installation and User Manual 27/78...

  • Page 28: Electrical Connections

    Max. PV / Panel ISC Max. PV / Panel ISC 380 VAC 380 VAC 400 VAC 400 VAC 415 VAC 415 VAC SOFAR 100KTLX-G4 152.0 A 145.0 A 139.2 A 25A per String / SOFAR 110KTLX-G4 167.2 A 159.5 A 153.1 A...

  • Page 29: Terminal Connector

    ▶ SOFAR 100...125KTLX-G4 is a transformerless inverter which requires the positive pole and negative pole of the PV array are NOT grounded. ▶...
  • Page 30 Torque is 6–7 Nm. – – A : M8 Hexagon screw – – B : Grounding cable For improving anti-corrosion performance, after ground cable installed, apply silicone or paint is preferred to protect. 30/78 SOFAR 100...125KTLX-G4...

  • Page 31: Connect Grid Side Of Inverter (Ac-Output)

    Electrical Connections Connect grid side of inverter (AC-Output) Connect grid side of inverter (AC-Output) Follow the national rules and regulations for the installation of external relays or circuit breakers! A residual current monitoring unit (RCMU) is integrated into the inverter. It detects leak- age currents above 300 mA and disconnects from the grid for protection.
  • Page 32 Cable type Cable type Terminal connector type Terminal connector type Copper core cable Copper terminal connector Copper clad aluminum cable Copper terminal connector Aluminum core cable Copper and aluminum transition terminal connec- tor or aluminum terminal connector 32/78 SOFAR 100...125KTLX-G4...
  • Page 33 Electrical Connections Installation and User Manual 33/78...
  • Page 34 Electrical Connections Wiring Procedure Wiring Procedure Requested cable dimensions SOFAR 100 – 125KTLX-G4 Cable cross-sectional area of L/N: Copper Wire:95 – 185 mm² Aluminum Wire:120 – 240 mm² Cable cross-sectional area of P/E: 16 – 35 mm² Multi-core cable O.D. range: ≤60 mm...
  • Page 35 Electrical Connections Depending on the grid configuration, connect L1, L2, L3 and N to the terminals according to the label and tighten the screw on the terminal using a screwdriver. single core cable is wired as follows: Phase lines use M12 terminal connector, PE line use M8 terminal connector. The position of “PE” Line and “N” Line should not be opposite. Opposite position may cause inverter permanently faulty.

  • Page 36: Connect Pv Side Of Inverter (Dc-Input)

    Insert the positive and negative DC cables into the corresponding contact pins. 1 Positive DC cable / 2 Negative DC cable 1 Positive DC cable / 2 Negative DC cable Crimp the PV metal contact pin to the striped cable using a proper crimping pliers. 36/78 SOFAR 100...125KTLX-G4...
  • Page 37 Electrical Connections CAUTION CAUTION danger of reverse polarity. Use the corresponding connector housing. Ensure that the polarity is correct before plugging into the DC connections! Insert the crimped DC cables into the corresponding connector housing until you hear a clicking clicking sound.
  • Page 38 Remove the plus and minus connection from the inverter CAUTION CAUTION Danger of DC arcing. Set the DC switch to OFF before removing the plus and minus connector. ▶ Insert a removal key into the locking and press on the key with the adequate force. 38/78 SOFAR 100...125KTLX-G4...

  • Page 39: Communication Connection

    Communication Connection Communication Connection Communication Connection When layout the cable routing, separate the communication wiring and power wiring because the signal can be affected. USB port USB port The USB port can be used to update the inverter‘s software version, or for connecting a WiFi-stick or Ethernet cable. Installation and User Manual 39/78...

  • Page 40: Com Port

    Electric meter RS485 signal- GND.S Communication Ground DRM0 Remoteshutdown Logic interface for pow- er control and remote- DRM1/5 shutdown DRM2/6 DRM3/7 DRM4/8 CAN-3A CAN+ For parallel CAN-3B CAN- For parallel CAN-3A CAN+ For parallel CAN-3B CAN- For parallel 40/78 SOFAR 100...125KTLX-G4...
  • Page 41 Remote shutdown Supported DRM commands are pre-configured: DRM0, DRM5, DRM6, DRM7, DRM8: wiring and configuration Europe (SOFAR G4 inverter) I I n n v v e e r r t t e e r r 1 1 I I n n v v e e r r t t e e r r 2 2...
  • Page 42 As soon as the input is shorted or opened, the inverter disconnects from the grid. Functional description of the terminal Functional description of the terminal Function Function Pin Definition Definition Note Note Grounding GND.S Signal GND DRMs/Logic Interface DRM0 Remoteshutdown DRM1/5 0% power 42/78 SOFAR 100...125KTLX-G4...
  • Page 43 Communication Connection The Logic interface has to be activated in the LCD screen of the inverter, or with SOFAR View App: • DRM0 active: Remoteshutdown • DRMn active: active power feed-in limitation function Also, the power levels in percentage can be adjusted if needed.
  • Page 44 Limit the feed-in power of each phase to 1/3 of the setpoint. System monitoring System monitoring The SOFAR 100...125KTLX-G4 inverters provide various communication methods for the system monitoring: RS485 or WiFi stick (standard), GPRS or Ethernet stick (optional). RS485 network...
  • Page 45 Communication Connection RS485 Wiring (SOFAR G4 inverter) F F i i r r s s t t I I n n v v e e r r t t e e r r L L a a s s t t I I n n v v e e r r t t e e r r D D a a t t a a L L o o g g g g e e r r 120 Ω...
  • Page 46 Configuration of the WiFi stick via the web browser Configuration of the WiFi stick via the web browser Preparation: The WiFi stick is installed in accordance with the previous section and the SOFAR inverter must be in operation. Carry out the following steps in order to configure the WiFi stick: Connect your PC or smartphone with the WiFi network of the WiFi stick. The name of this WiFi network is “AP”, followed by the serial number of the WiFi stick (see rating plate). When you are prompted for a password, you can find it on the label of...

  • Page 47: Commissioning

    Commissioning Commissioning Commissioning NOTICE NOTICE Damage of the inverter due to DC / AC voltages outside of permissible range Damage of the inverter due to DC / AC voltages outside of permissible range DC / AC voltages outside of permissible range can destroy the inverter DC / AC voltages outside of permissible range can destroy the inverter ▶...

  • Page 48: Smartphone App Sofar Setting

    The app is available for Android and iOS systems and allows for easy initial setup as well as advanced configurations. Download link: Android Android After switching on the inverter, the app finds the unit via Bluetooth under its serial num- ber. The App requires an user registration upon first start-up. On request, the permission level can be adjusted by the SOFAR Service team. If the Bluetooth connection does not work, carry out a firmware update of the inverter. 48/78 SOFAR 100...125KTLX-G4...

  • Page 49: Operation

    Operation Operation Operation Control panel and display Control panel and display Buttons and display lights Buttons and display lights Element Element Description Description UP key UP key Short press: Select previous menu item Long press: Exit menu DOWN key DOWN key Short press: Select next menu item Long press: Enter function LED GFI...

  • Page 50: Standard Display

    Permanent Repeated errors can lead to a permanent error which needs investiga- tion and problem solving on site. DSP commu- When the control board and communication board connection fails, nication fault the display shows this message. 50/78 SOFAR 100...125KTLX-G4...

  • Page 51: Menu Structure

    Operation Menu structure Menu structure ▶ Hold key to show the main menu. Main Main Sub menu Sub menu What can do here What can do here 1. Settings 1. Settings Change device settings 2. Event list 2. Event list Display the current event list and the event history 3.
  • Page 52 Operation 8. Set input mode SOFAR 100...125 KTL X-G4 has 10 MPPTs, these MPPTs can work interdependently, or be divided into parallel mode. User can change the setting according to the configuration. 9. Set language Set the inverter display language. 10. Set Feed-in Limit...
  • Page 53 Operation Event list Event list The event list is used to display the event recordings. The most recent events are listed at the top. Long press the key to open 1. Current event 1. Current event: showing the events in real time. Short press the key to open 2.

  • Page 54: Software Update

    Then, switch the DC switch back on and proceed with the update from step 5. After the update is complete, switch the DC switch off and wait until the LCD screen goes out. Re-establish a watertight communication connection. Switch the DC and AC circuit breaker back on. You can check the current software version in item “3. Software version” of the Sys- temInfo menu. 54/78 SOFAR 100...125KTLX-G4...

  • Page 55: Troubleshooting

    Troubleshooting Troubleshooting Troubleshooting This section contains information and procedures pertaining to the remedying of poten- tial problems with the inverter. To carry out troubleshooting, proceed as follows: To carry out troubleshooting, proceed as follows: ▶ Check the warnings, error messages or error codes displayed on the screen of the inverter.

  • Page 56: Event List

    GridUVP The voltage of the power grid is too low GridOFP The grid frequency is too high GridUFP The grid frequency is too low Charge Leakage Fault Check for inverter and wiring. GFCI 56/78 SOFAR 100...125KTLX-G4...
  • Page 57 Troubleshooting ID ID Name Name Description Description Solution Solution If the alarm occurs occasionally, OVRT OVRT function dis- the possible cause is that the elec- rupted tric grid is abnormal occasionally. Inverter will automatically return to normal operating status when the electric grid’s back to normal.
  • Page 58 ON inverter. Check whether the problem is solved. If no, contact technical support. ConsistentVgrid Grid voltage consis- tency error ConsistentDCI DCI consistency error SpiCommFault(DC) SPI communication error (DC) SpiCommFault(AC) SPI communication error (AC) SChip_Fault Chip error (DC) 58/78 SOFAR 100...125KTLX-G4...
  • Page 59 Troubleshooting ID ID Name Name Description Description Solution Solution MChip_Fault Chip error (AC) HwAuxPowerFault Auxiliary power error InvSoftStartFail Inverter soft startup failed Check whether the photovoltaic ArcShutdownAlarm Arc shutdown protec- module connection line and termi- tion nals have bad arc contact. If there is a fault, repair the fault in ti Relay detection failure Internal faults of inverter, switch RelayFail...
  • Page 60 BusRmsUnbalance Unbalanced bus volt- OFF inverter, wait for 5 minutes, age RMS then switch ON inverter. Check whether the problem is solved. If no, contact technical support. BusInstUnbalance The transient value of bus voltage is unbal- anced 60/78 SOFAR 100...125KTLX-G4...
  • Page 61 Troubleshooting ID ID Name Name Description Description Solution Solution BusUVP Busbar undervoltage during grid-connection BusZVP Bus voltage low Check whether the PV series PVOVP PV over-voltage voltage (Voc) is higher than the maximum input voltage of the inverter. If so, adjust the num- ber of PV modules in series and reduce the PV series voltage to fit the input voltage range of...
  • Page 62 Ensure that the inverter is installed in a cool/well ventilated place. Ensure the inverter is installed vertically and the ambient tem- perature is below the inverter temperature limit. 62/78 SOFAR 100...125KTLX-G4...
  • Page 63 Troubleshooting ID ID Name Name Description Description Solution Solution 114 FreqDerating Make sure the grid frequency and AC frequency is too voltage is within the acceptable high range. 115 FreqLoading AC frequency is too 116 VoltDerating AC voltage is too high 117 VoltLoading AC voltage is too low...
  • Page 64 (Fuse) 156 SoftVerError Contact for technical support and Inconsistent software upgrades software versions 161 ForceShutdown The inverter is performed a forced Force shutdown shutdown 162 RemoteShutdown The inverter is performed with a Remote shutdown Drms0 shutdown 64/78 SOFAR 100...125KTLX-G4...
  • Page 65 Troubleshooting ID ID Name Name Description Description Solution Solution 163 Drms0Shutdown The inverter is performed a Drms0 shutdown remote shutdown 165 RemoteDerating The inverter is performed for Remote derating remote load reduction 166 LogicIfDerating The inverter is loaded by the exe- Logic interface der- cution logic interface ating...

  • Page 66: Maintenance

    Defective or dirty fans can reduce the performance of the inverter Broken or faulty fans may cause cooling issues, which may lead to limited Broken or faulty fans may cause cooling issues, which may lead to limited heat dissipation and a lower working efficiency of the inverter. heat dissipation and a lower working efficiency of the inverter. ▶ Clean fans regulary. 66/78 SOFAR 100...125KTLX-G4...
  • Page 67 Maintenance Follow below steps for replacing a fan and maintenance: Remove the screw (1) from the fan tray and store them properly. Pull out the fan tray until the fan baffle plate aligns with the SOFAR inverter enclo- sure. Unscrew the connectors and disconnect the cables. Pull out the fan tray. Remove the cable ties from the faulty fan.
  • Page 68 Maintenance Align the fan tray with the installation position and push in the fan tray until the fan baffle plate is flush with the SOFAR inverter enclosure. Connect the cables correctly according to the cable labels. Tighten the screw (1) on the fan tray. 68/78 SOFAR 100...125KTLX-G4...

  • Page 69: Technical Data

    Technical Data Technical Data Technical Data SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Datasheet Datasheet 100KTLX-G4 100KTLX-G4 110KTLX-G4 110KTLX-G4 125KTLX-G4 125KTLX-G4 125KTLX-G4-A 125KTLX-G4-A Input DC Input DC Max. input voltage 1100 V Rated input voltage 625 V Start-up voltage...
  • Page 70 Technical Data SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Datasheet Datasheet 100KTLX-G4 100KTLX-G4 110KTLX-G4 110KTLX-G4 125KTLX-G4 125KTLX-G4 125KTLX-G4-A 125KTLX-G4-A Max efficiency 98.60 % European efficiency 98.30 % Protection Protection DC reverse polarity protection Anti-islanding pro- tection Leakage current protection Ground fault moni- toring...

  • Page 71: Efficiency Curves

    This describes the efficiency curve in which the minimum MPP voltage (UDCMIN = 500 V), the maximum MPP voltage (UDCMAX = 850 V) and the rated input voltage (UDC, R = 625 V) of SOFAR 100…125KTLX-G4, including SOFAR 100KTLX-G4, SOFAR 110KTLX-G4, SOFAR 125KTLX-G4 (hereinafter referred to as 100KTLX-G4, 110KTLX-G4, 125KTLX-G4).

  • Page 72: Characteristics Curves

    Technical Data 11.2 11.2 Characteristics curves Characteristics curves This describes the characteristics curves of SOFAR 110-125KTLX-G4, including SOFAR 110KTLX-G4, SOFAR 125KTLX-G4 (hereinafter referred to as 110KTLX-G4,125KTLX-G4). Temperature dependent derating curve Temperature dependent derating curve The inverter will output different power in different environments, which can increase the overall service life of the inverter. Therefore, when the ambient temperature is high, the inverter will appropriately reduce the output power to ensure safe and long-term operation.
  • Page 73 625 V and the open circuit voltage at 890 V to make the inverter output with the best efficiency and obtain the best power generation. SOFAR 110KTLX-G4 DC voltage dependent output power derating curve (Pf=1) SOFAR 125KTLX-G4 DC voltage dependent output power derating curve (Pf=1) Installation and User Manual...
  • Page 74 AC output current is within the allowable range and ensure the safe operation of the equipment. It is generally recommended that the user configure it at the rated voltage of 380 VAC / 400 VAC / 415 VAC to obtain the maximum generating energy. SOFAR 110KTLX-G4 AC Voltage Dependent Derating Curve (Pf=1) SOFAR 125KTLX-G4 AC Voltage Dependent Derating Curve (Pf=1) 74/78...
  • Page 75 Technical Data Altitude dependent derating curve Altitude dependent derating curve In high-altitude areas, the air density is low, and charged particles are more vulnerable to ionization in thin air. When the gap and creepage distance between internal compo- nents of the inverter are fixed, It is necessary to limit the DC voltage according to the following curve in the design stage of the power station to ensure electrical safety. Altitude Dependent Derating Curve [Voltage derating] (Pf=1) Statement Statement...

  • Page 76: Declaration Of Conformity

    Declaration of Conformity Declaration of Conformity Hereby, SOFARSOLAR declares that the radio equipment type SOFAR 100...125KTLX-G4 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following web ad- dress: www.sofarsolar.com 76/78 SOFAR 100...125KTLX-G4...
  • Page 77 Declaration of Conformity Installation and User Manual 77/78...
  • Page 78 ADDRESS Shenzhen SOFARSOLAR Co., Ltd. 11/F, Gaoxinqi Technology Building, District 67, XingDong Community, XinAn Street, Bao’An District, Shenzhen, China EMAIL info@sofarsolar.com Website www.sofarsolar.com...

This manual is also suitable for:

110ktlx-g4125ktlx-g4125ktlx-g4-a

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