Sofar solar SOFAR 25KTLX-G3 User Manual
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Sofar solar SOFAR 25KTLX-G3 User Manual

Solar grid-tied inverter
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User manual
Solar Grid-tied Inverter
Product Model: SOFAR 25~50KTLX-G3
S h e n z h e n S O FA R S O L A R C o . , L t d .

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Summary of Contents for Sofar solar SOFAR 25KTLX-G3

  • Page 1 User manual Solar Grid-tied Inverter Product Model: SOFAR 25~50KTLX-G3 S h e n z h e n S O FA R S O L A R C o . , L t d .

  • Page 2: Table Of Contents

    SOFAR 25~50KTLX-G3 User manual Catalog Preface ........................II 1. Basic Safety Information ..................- 1 - 1.1. Requirement for Installation and Maintenance ........ - 1 - 1.2. Symbols and signs ................- 4 - 2. Product Characteristics ..................- 7 - 2.1. Intended Use ..................- 7 - 2.2.

  • Page 3: Preface

    SOFAR 25~50KTLX-G3 User manual Preface Notice The products, services or features you purchased shall be subject to the company's commercial contracts and terms. All or part of the products and services described in this document may not within the scope of your purchase. Unless additional terms and conditions in your contract, the company does not make any statement or guarantee on the contents of this document.
  • Page 4 This manual is an integral part of SOFAR25~50KTLX-G3. It describes the assembly, installation, commissioning, maintenance and failure of the product. Please read it carefully before operating. Scope of Validity  This manual contains important instructions for: SOFAR 25KTLX-G3 SOFAR 30KTLX-G3 SOFAR 30KTLX-G3-A SOFAR 33KTLX-G3 SOFAR 36KTLX-G3 SOFAR 40KTLX-G3...

  • Page 5: Basic Safety Information

    SOFAR 25~50KTLX-G3 User manual 1.Basic Safety Information Outlines of this Chapter Please read the instruction carefully. Faulty operation may cause serious injury or death. If you have any question or problem when you read the following information, please contact Shenzhen SOFARSOLAR CO., Ltd.
  • Page 6 SOFAR 25~50KTLX-G3 User manual Qualified Person When inverter is working, it contains lethal voltages and went hot in some area. Improper installation or maloperation could cause serial damage and injury. To reduce the risk of personal injury and to ensure the safe installation and operation of the product, only a qualified electrician is allowed to execute transportation, installation, commissioning and maintenance.
  • Page 7 SOFAR 25~50KTLX-G3 User manual Inverter is in the good electrical and physical condition when it ship out from factory. During transport, inverter must be placed in its original package or other proper package. Transportation company should responsible for any damage during transport period.

  • Page 8: Symbols And Signs

    SOFAR 25~50KTLX-G3 User manual Maintenance and repair Before any repair work, turn OFF the AC circuit breaker between the inverter and electrical grid first, then turn OFF the DC switch. After turning OFF the AC circuit breaker and DC switch wait for at least 5 minutes before carry any maintenance or repair work.
  • Page 9 SOFAR 25~50KTLX-G3 User manual PV array should be grounded in accordance to the requirements of the local electrical grid company Attention Ensure the maximum DC voltage input is less than the maximum inverter DC voltage (including in low temperature condition). Any damage cause by overvoltage, SOFARSOLAR will not take the responsibility including warranty Warning...
  • Page 10 SOFAR 25~50KTLX-G3 User manual Observe the Read all documentation supplied with documentation the product before install Positive pole and negative Positive pole and negative pole of the pole input voltage (DC) Indicated the temperature allowance Temperature range RCM (Regulatory Compliance Mark) The product complies with the RCM logo requirements of the applicable...

  • Page 11: Product Characteristics

    SOFAR 25~50KTLX-G3 User manual 2.Product Characteristics Outlines of this Chapter Product Dimensions Introduce the field of use and the dimensions of the product Function Description Introduce working principle and internal components of the product Efficiency Curves Introduce the efficiency curves of the product 2.1.
  • Page 12 SOFAR 25~50KTLX-G3 User manual batteries will against the warranty condition and SOFARSOLAR will not take the responsibility. Intended grid types SOFAR25~50KTLX-G3 configurations.For the TT type of electricity grid，the voltage between neutral and earth should be less than 30V. inverters are compatible with TN-S, TN-C, TN-C-S, TT, IT grid.
  • Page 13 SOFAR 25~50KTLX-G3 User manual 585.0 231.0 Figure 2-3 Front, side and back of the machine (take 50KW for example) Figure 2-4Bottom view(take 50KW for example) Note: 25~36K and 40K-HV supports 6-channel PV string input,40~50K and 50K-HV supports 8-channel PV string input. 4-12.0 126.0 126.0...
  • Page 14 SOFAR 25~50KTLX-G3 User manual Function description of inverter box bottom 1. DC Switch 5. USB Port (for WIFI or Ethernet communication) 2. Breather valve 6. COM Port (for RS485 communication) 3. DC positive poles connecters 7. AC output 4. DC negative poles connecters 8.

  • Page 15: Function Description

    SOFAR 25~50KTLX-G3 User manual 2.2. Function Description DC power generated by PV arrays is filtered through Input Board then enter Power Board. Input Board also offer functions such as insulation impedance detection and input DC voltage/ current detection. DC power is converted to AC power by Power Board.

  • Page 16: Electrical Block Diagram

    SOFAR 25~50KTLX-G3 User manual 2.3. Electrical block diagram Figure 2-8 Schematic diagram(take 50KW for example) 2.4. Efficiency and derating curve Figure 2-9 Power efficiency curve (take 50KW for example) - 12 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.
  • Page 17 SOFAR 25~50KTLX-G3 User manual Figure 2-10 Rated Power ratio vs Grid Voltage - 13 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • Page 18: Installation

    SOFAR 25~50KTLX-G3 User manual 3.Installation Outlines of this Chapter This topic describes how to install this product, please read carefully before install. Do NOT install the product on flammable material Do NOT store this product in potentially explosive atmospheres Dangers The enclosure and heat sink will get hot during operation, please do not mount the product at a easy to reach location Caution...
  • Page 19 SOFAR 25~50KTLX-G3 User manual After unpacking, please check according to following table, to see whether all the parts were included in the packing, please contact your distributor immediately if anything missing or damage. Figure 3-1Components and mechanical parts that inside the package Pictures Description Quantity...
  • Page 20 SOFAR 25~50KTLX-G3 User manual 25~36KTLC-G3 6PCS 40~50KTLC-G3 8PCS PV+ input connector 40KTLC-G3-HV 6PCS 50KTLC-G3-HV 8PCS 25~36KTLC-G3 6PCS 40~50KTLC-G3 8PCS PV- input connector 40KTLC-G3-HV 6PCS 50KTLC-G3-HV 8PCS M4 cross screw (For locking the 6PCS waterproof cover) M5 cross screw (For locking the rear 1PCS panel) M6 Hexagon screws...

  • Page 21: Tools

    SOFAR 25~50KTLX-G3 User manual Quality Certificate 1PCS R-type terminal 1PCS (Connect PE) R-type terminal 4PCS (Connect L1/L2/L3/N) AC terminal insulation 4PCS partition Communication 1PCS Terminal USB acquisition stick 1 PCS (Optional) (WIFI/Ethernet) 3.3. Tools Prepare tools required for installation and electrical connection as following table: Figure 3-2 Installation tools - 17 - Copyright ©...
  • Page 22 SOFAR 25~50KTLX-G3 User manual Tool Description Function Hammer Drill Recommend Used to drill holes on the wall drill @ 6mm Use to tighten and loosen screws when installing AC Screwdriver power cable Use to remove AC connectors from the product Fasten the cable and Install Socket wrench the expansion bolt...

  • Page 23: Determining The Installation Position

    SOFAR 25~50KTLX-G3 User manual Check grounding cable, PV Multimeter positive and negative pole Marker Mark signs Measuring Measure distance Tape Ensure the rear panel is Level properly installed Installer wear when installing ESD gloves product Installer wear when installing Safety goggles product Installer wear when installing Mask...
  • Page 24 SOFAR 25~50KTLX-G3 User manual Figure 3-1Installation Position Selection Figure 3-2Clearance for single inverter - 20 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • Page 25: Moving Of Inverter

    SOFAR 25~50KTLX-G3 User manual Figure 3-3 Clearance for multiple inverters 3.5. Moving of inverter Unload the inverter from package, horizontally move to the install position. When open the package, at least two operators insert the hands to the back of heat sink part.

  • Page 26: Installation

    SOFAR 25~50KTLX-G3 User manual Figure 3-5 Move inverter from package (2) Inverter is heavy, attention to keep the balance when lift the inverter. Dropped while being transported may cause injuries. Do not put the inverter with wiring terminals contacting the floor because the power ports and signal ports are not designed to support the weight of the inverter When place inverter on the floor, put it above foam or paper to avoid...
  • Page 27 SOFAR 25~50KTLX-G3 User manual Figure 3-6 Installation instruction (1) Step 4 ： Lift the inverter and hang it on the rear panel, and fixing both side of inverter with M6 screw (accessories). Figure 3-7 Installation instruction (2) - 23 - Copyright ©...

  • Page 28: Electrical Connection

    For this product, the open circuit voltage of PV strings should not greater 1100V Note The connected panel must meet the standard IEC61730A。 String Maximum output current IscPV(maximum) Model SOFAR 25KTLX-G3 42.4A SOFAR 30KTLX-G3 51.5A 3*50A SOFAR 30KTLX-G3-A 45.3A SOFAR 33KTLX-G3 - 24 - Copyright ©...

  • Page 29: Grounding Connection (Pe)

    SOFAR 25~50KTLX-G3 User manual SOFAR 36KTLX-G3 60.6A SOFAR40KTLX-G3 66.7A SOFAR 45KTLX-G3 4*50A 75.8A SOFAR 50KTLX-G3 83.3A SOFAR40KTLX-G3-HV 3*50A SOFAR 50KTLX-G3-HV 4*50A 66.2A 4.1. Electrical Connection Figure 4-1flowchart for connecting cables to the inverter 4.2. Grounding Connection (PE) Connect the inverter to the grounding electrode usingground cable SOFAR 25~50KTLX-G3 is a transformerless inverter which requires the positive pole and negative pole of the PV array are NOT grounded.
  • Page 30 SOFAR 25~50KTLX-G3 User manual Figure 4-2 Grounding connection instruction（1） Note：the length of L2 should 2~3mm higher than L1 Step 2: Insert the exposed core wires into the OT terminal and crimp them by using a crimping tool, as shown as figure 5.3. Recommend using OT terminal: OT-M6. Figure 4-3 Grounding connection instruction（2）...

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

    SOFAR 25~50KTLX-G3 User manual Figure 4-4 Inverter external grounding instruction diagram 4.3. Connect grid side of inverter (AC-Output) SOFAR 25~50KTLX-G3 connect to utility grid by using AC power cable. The AC connection must meet the requirement of local grid operator Ban multiple Inverters use one circuit breaker Ban connect loads between inverter and circuit breaker Caution...
  • Page 32 SOFAR 25~50KTLX-G3 User manual SOFAR 80A/380V/3P, 25~50 16~25 <50 40KTLX-G3-HV I△N=0.1A SOFAR 100A/380V/3P, 35~70 16~35 <50 50KTLX-G3-HV I△N=0.1A Must use five core outdoor cable, the recommend AC cable and Residual current breaker (RCD) as below table: If one is required under local regulations, SOFAR recommends a type A or B RCD with sensitivity of 100mA or higher.
  • Page 33 SOFAR 25~50KTLX-G3 User manual and power loss as below: Figure 4-6 relation between cable length, cross section area and power loss The AC output terminal of this product is equipped with high current 5-core terminal block and customized AC output waterproof cover, which can meet the IP65 level requirements after installation.

  • Page 34: Connect Pv Side Of Inverter(Dc-Input)

    SOFAR 25~50KTLX-G3 User manual Insulating sleeve, R type terminal terminal shall not be exposed. Figure 4-8 AC cable connection instruction diagram (1) Step 2: After assembling the PG waterproof connector, connect the cable to the AC terminal block L1, L2, L3, N, PE contacts, and tighten the M8 screws (6-10 N.m) and M6 screws (5-7 N.m) with a sleeve;...
  • Page 35 SOFAR 25~50KTLX-G3 User manual cable) Cable OD (mm) Copper cable cross section area（mm ） 2.5~6.0 6.0~9.0 Step 1: Figure 5-2 Recommend DC cable size Step1: Find the metal contact pins in the accessories bag, connect the cable according below diagram (1.Positive cable, 2. negative cable)； Figure 4-10 DC cable connection（1）...
  • Page 36 SOFAR 25~50KTLX-G3 User manual Figure 4-12 DC cable connection(3) Step 4: Measure PV voltage of DC input with multimeter, verify DC input cable polar and connect DC connector with inverter until hearing a slight sound indicated connection succeed. Figure 4-13 DC cable connection(4) Figure 4-14 Use a multimeter to check the positive and negative electrodes Note ：...

  • Page 37: Communication Connection

    SOFAR 25~50KTLX-G3 User manual Figure 4-15 Removal DC connector 4.5. Communication Connection When layout the wiring diagram, please separate the communication wiring and power wiring in case the signal be affected. Note SOFAR 25~50KTLX-G3 inverter has one USB Port and one COM Port, as shown in the following figure.
  • Page 38 SOFAR 25~50KTLX-G3 User manual ① ② ③ For details, please refer to the user manual of USB acquisition stick. 4.5.2.COM—Multi function communication port Figure 4-18 Recommend COM cable size Outer diameter Area Name Type (mm) (mm²) RS485 Outdoor shielded twisted Communication 2 or 3core：4~8 0.25~1...
  • Page 39 SOFAR 25~50KTLX-G3 User manual DRM2/6 DRM3/7 DRM4/8 13-16 Blank PIN Procedure：(Subject to the real object) ② ③ ① ④ ⑤ Procedure(Corresponding to the second communication terminal)： ① ② ③ - 35 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.
  • Page 40 SOFAR 25~50KTLX-G3 User manual ④ ⑤ 4.5.3. Communications Port Description Logic interface (a) Logic interface for AS/NZS 4777.2:2020, also known as inverter demand response modes (DRMs). The inverter will detect and initiate a response to all supported demand response commands within 2 s. The inverter will continue to respond while the mode remains asserted.
  • Page 41 SOFAR 25~50KTLX-G3 User manual RRCR Figure 5- 18 Inverter – RRCR Connection Pin NO. Pin name Description Connected to (RRCR) Relay contact 1 input K1 - Relay 1 output Relay contact 2 input K2 - Relay 2 output Relay contact 3 input K3 - Relay 3 output Relay contact 4 input K4 - Relay 4 output...
  • Page 42 SOFAR 25~50KTLX-G3 User manual RRCR Figure 5- 19 Inverter – RRCR Connection Pin NO. Pin name Description Connected to (RRCR) Relay contact 1 input K1 - Relay 1 output K1 - Relay 1 output Table 5- 7 Function description of the termina Relay status: close is 1, open is 0 Active Power Power drop rate...
  • Page 43 SOFAR 25~50KTLX-G3 User manual NOTE: The direction of the current transformer is shown in fig. ④ ① ② ③ ④ Generation and Export Limit Control functions for the inverter are available but require the use of an external measurement device to obtain grid information. The way to obtain grid information: Plan A: Meter + CT Note:...
  • Page 44 SOFAR 25~50KTLX-G3 User manual Anti-Reflux Function = Export Limit function Reflux Power = Export apprent Power Hard Anti-Reflux control = Hard Export limit control Anti-Reflux Control = Soft Export limit control When Anti-Reflux function is enabled, the reflux power of point of common coupling (PCC) will be limited to the set Reflux Power limit.
  • Page 45 SOFAR 25~50KTLX-G3 User manual Figure 4-17 Picture of the RS485/USB converter and PC terminal If only one SOFAR 25~50KTLX-G3 is used, use a communication cable, refer to section 4.5.2 for COM pin definition, and choose either of the two RS485 ports. Figure 4-18 A single SOFAR 25~50KTLX-G3 connecting communications If multiple SOFAR 25~50KTLX-G3 are used, connect all SOFAR 25~50KTLX-G3 in daisy chain mode over the RS485 communication cable.
  • Page 46 SOFAR 25~50KTLX-G3 User manual Web：https://home.solarmanpv.com (Recommended browser: Chrome58、 Firefox49、IE9 and above version). APP：Android: Go to Android Market and search "SolarMAN". IOS: Go to App Store and search "SolarMAN". SolarMAN-3.0-Web User Manual, Please visit the https://doc.solarmanpv.com/web/7. SolarMAN-App User Manual, Please visit the https://doc.solarmanpv.com/web/14. WIFI / Ethernet By the USB acquisition stick (WIFI / Ethernet), transfer the inverter power output information, alarm information, operation state to the PC terminal or local data...
  • Page 47 SOFAR 25~50KTLX-G3 User manual Figure 4-21 Connect multiple USB acquisition stick (WIFI version) to wireless router The length of the RS485 communication cable should be less  than 1000 m. The length of the WIFI communication cable should be less than ...

  • Page 48: Commissioning Of Inverter

    SOFAR 25~50KTLX-G3 User manual 5.Commissioning of inverter Outlines this Chapter Introduce SOFAR 25~50KTLX-G3 safety inspection and start processing 5.1. Cable Connection Inspection For first time operation, check the AC voltage and DC voltage are within the acceptable range Attention AC grid connection Use multimeter to confirm that three lines and PE line are connect correctly.

  • Page 49: Shutdown Inverter

    SOFAR 25~50KTLX-G3 User manual Shenzhen SOFARSOLAR Co., Ltd. is not responsible for any consequences arising out of incorrect country code selection. If the inverter indicates any fault, please refer to Section 7.1 of this manual —— trouble shooting for help. 5.3.

  • Page 50: Operation Interface

    SOFAR 25~50KTLX-G3 User manual 6.Operation interface Outlines of this chapter This section introduces the display, operation, buttons and LED indicator lights of SOFAR 25~50KTLX-G3 Inverter. 6.1. Operation and Display Panel Buttons and Indicator lights GFCI lamp Up button Normal lamp Down button Alarm lamp LCD screen...

  • Page 51: Standard Interface

    SOFAR 25~50KTLX-G3 User manual 6.2. Standard Interface LCD interface indicated inverter status, alarm information, communication connection, PV input current and voltage, grid voltage, current and frequency, today generation, total generation. Inverter working status, PV 1 input voltage and current Inverter working status, PV 2 input voltage and current Inverter working status, PV 3 input voltage and current Inverter working status, PV 4 input voltage and current Inverter working status, PV generated power...
  • Page 52 SOFAR 25~50KTLX-G3 User manual Inverter working status, grid voltage and current Inverter working status, grid voltage and frequency Inverter working status, USB status Inverter faulty alarm When control board successfully connected with communication board, the LCD display the current state of the inverter，display as shown in the figure below. - 48 - Copyright ©...

  • Page 53: Main Interface

    SOFAR 25~50KTLX-G3 User manual Inverter states includes: wait, check, normal and fault Wait: Inverter is waiting to Check State when reconnect the system. In this state, grid voltage value is between the max and min limits and so on; If not, Inverter will go to Fault State or Permanent State.
  • Page 54 SOFAR 25~50KTLX-G3 User manual 1.Enter Setting 2.Event List 3.SystemInfo 4.Display Time 5.Software Update (A)Enter setting Interface as below： 1.Enter Setting --------Long press DOWN button 1.Set time 9.Set Language 2.Clear Energy 10.Set AntiReflux 3.Clear Events 11.Logic Interface 4.Set Country 12.IV Curve Scan 5.On-Off Control 13.PCC Select 6.Set Energy...
  • Page 55 SOFAR 25~50KTLX-G3 User manual This menu is where you can select the country grid parameters, alternatively you can use the mobile APP. To import a country profile you will require the use of a USB drive. Once you insert a USB drive with a valid file you can then select and import it in the "Set SafetyPara"...
  • Page 56 SOFAR 25~50KTLX-G3 User manual IEC EN61727 Korea Sweden Europe General Table 7-1 Country code setting For The Australian Market: For compliance with AS/NZS 4777.2:2020 please select from 002-000 Australia A (Australia Region A) 002-008 Australia B (Australia Region B) 002-009 Australia C (Australia Region C) Please contact your local grid operator for which option to select Note: By selecting 002-000 Australia A, 002-008 Australia B or 002-009 Australia C the power quality response mode and grid protection settings will be reset to their...
  • Page 57 SOFAR 25~50KTLX-G3 User manual Region Default value Voltage Australia A Inverter output (P) % of S 100% 100% rated Voltage Australia B Inverter output (P) % of S 100% 100% rated Voltage Australia C Inverter output (P) % of S 100% 100% rated...
  • Page 58 SOFAR 25~50KTLX-G3 User manual 9. Set Language Set the inverter display language. 10. Set AntiReflux Enable or disable Reflux. It is use for inverter generation and output limit control functions, but requires the use of external measuring equipment to obtain grid information.
  • Page 59 SOFAR 25~50KTLX-G3 User manual 12. IV Curve Scan Shadow scanning, when the component is blocked or abnormal, causing multiple power peaks, by enabling this function, the peak point of maximum power can be tracked. 13. PCC Select The function is divided into two options: PCC Meter and PCC ARPC, the first one is the default usage for SOFAR 25-50KTLX-G3.
  • Page 60 SOFAR 25~50KTLX-G3 User manual ↓ Wait Testing 81<S1... ↓ Wait Test 81<S1 OK! ↓ Wait Testing 81<S2... ↓ Wait Test 81<S2 OK! ↓ Long press the“∨” Auto Test OK! ↓ Short press the “∨” 59.S1 threshold 253V 900ms ↓ Short press the “∨” 59.S1: 228V 902ms ↓...
  • Page 61 SOFAR 25~50KTLX-G3 User manual ↓ Short press the “∨” 81<.S1 threshold 49.5Hz 100ms ↓ Short press the “∨” 81<.S1 50.0Hz 105ms ↓ Short press the “∨” 81<.S2 threshold 47.5Hz 100ms ↓ Short press the “∨” 81<.S2 50.1Hz 107ms 16. Autotest STD 16.Autotest STD Long press the “∨”...

  • Page 62: Updating Inverter Software

    SOFAR 25~50KTLX-G3 User manual 6.Modbus Address 7.Input Mode The user enters the main menu by long pressing the DOWN button, short press and turns the page to select menu contents, then long press the button to enter "3. SystemInfo". Turning the page down can select the system information to view.
  • Page 63 SOFAR 25~50KTLX-G3 User manual Figure 6-1 Remove communication broad cover Step 2：Insert USB into computer； Step 3：SOFARSOLAR service team will send the software code to user, after user receive the file, please decompressing file and cover the original file in USB flash drive.

  • Page 64: Smart Meter Instruction

    SOFAR 25~50KTLX-G3 User manual can check the current software version in Systemlnfo>>3.SoftVersion. Note: If screen shows “Communication fail”, “Update DSP1 fail”, “Update DSP2 fail” please turn off the DC switch, wait for the LCD screen turn off, then turn on the DC switch again, then Continue to update from step 5. 6.5.
  • Page 65 SOFAR 25~50KTLX-G3 User manual CTR Phasepower:The sum of the three phase power vector of the connection point = The set Reflux power CTR SellingPower:The selling power of any phase of the system connection point <=The set Reflux power /3 Selling electricity: sending electricity to the grid Buy electricity: take energy from the grid Anti-Reflux: limit the energy sent to the grid Positive power: the power purchased...

  • Page 66: Trouble Shooting And Maintenance

    SOFAR 25~50KTLX-G3 User manual 7.Trouble shooting and maintenance 7.1. Troubleshooting This section describes the potential errors for this product. Please read carefully for the following tips when doing the troubleshooting: 1) Check the warning message or faulty codes on the inverter information panel 2) If not any error code display on the panel, please check the following lists: —...
  • Page 67 SOFAR 25~50KTLX-G3 User manual contact technical support to change the grid over-voltage, under-voltage, over-frequency, under-frequency protection points after obtaining approval from the local electrical grid operator. ID005 GFCI Charge Leakage Fault Check for inverter and wiring. ID006 OVRT fault OVRT function is faulty ID007 LVRT fault LVRT function is faulty...
  • Page 68 SOFAR 25~50KTLX-G3 User manual output ID041 RelayFail Relay detection failure Check the insulation resistance between Low insulation the photovoltaic array and ground ID042 IsoFault impedance (ground), if there is a short circuit, the fault should be repaired in time. ID043 PEConnectFault Ground fault Check ac output PE wire for grounding.
  • Page 69 SOFAR 25~50KTLX-G3 User manual Meters communication ID105 MeterCommFault Check whether the meters wiring is correct. fault Make sure the inverter is installed where there is no direct sunlight. Please ensure that the inverter is installed OverTempDeratin Internal temperature is ID113 in a cool/well ventilated place.
  • Page 70 SOFAR 25~50KTLX-G3 User manual Please check whether the fan 6 of inverter ID174 FanFault6 Fan 6 fault is running normally. Please check whether the fan 7 of inverter ID175 FanFault7 Fan 7 fault is running normally. ID193 StrFuseALM1-1 StrFuseALM1-1 ID194 StrFuseALM1-2 StrFuseALM1-2 ID195...

  • Page 71: Fan Maintenance

    SOFAR 25~50KTLX-G3 User manual 7.2. Maintenance Inverters generally do not need any daily or routine maintenance. But ensure heat sink should not be blocked by dust, dirt or any other items. Before the cleaning, make sure that the DC SWITCH is turned OFF and the circuit breaker between inverter and electrical grid is turned OFF.
  • Page 72 SOFAR 25~50KTLX-G3 User manual Figure 7-1 remove the six screws from the fan base plate Step 3:Remove the screws at the fan position , unplug the terminal at the fan and inverter interface and completely remove the fan; Figure 7-2 remove the fan and protective cover Step 4: Use a soft brush to clean the fan.

  • Page 73: Technical Data

    SOFAR 25~50KTLX-G3 User manual 8.Technical Data Outlines of this Chapter This chapter outline the SOFAR 25~50KTLX-G3 model type and technical parameters Model SOFAR SOFAR SOFAR SOFAR SOFAR 25KTLX-G3 30KTLX-G3 30KTLX-G3-A 33KTLX-G3 36KTLX-G3 Datasheet Input (DC) Recommended Max. PV input 37500Wp 45000Wp 45000Wp 49500Wp...
  • Page 74 SOFAR 25~50KTLX-G3 User manual Max. output 42.4A 51.5A 45.3A 60.6A current Nominal grid 3/N/PE, 220/380Vac, 230/400Vac voltage Grid voltage range 310Vac-480Vac (According to local standard) Nominal frequency 50 / 60Hz Grid frequency 45Hz-55Hz/54Hz-66Hz (According to local standard) range Active power 0~100% adjustable range THDi...
  • Page 75 SOFAR 25~50KTLX-G3 User manual General Data Ambient -30℃~+60℃ temperature range Self-consumption at <3W night Topology Transformer-less Degree of IP65 protection Allowable relative 0~100% humidity range Max. operating 4000m altitude Noise <60dB Weight 36kg Cooling 585×480×220mm Dimension Display LCD & Bluetooth +APP Warranty 5 years, Optional: 7 years/ 10 years Standard...
  • Page 76 SOFAR 25~50KTLX-G3 User manual Model SOFAR SOFAR SOFAR SOFAR SOFAR 40KTLX-G3 45KTLX-G3 50KTLX-G3 40KTLX-G3-HV 50KTLX-G3-HV Datasheet Input (DC) Recommended Max. PV input 60000Wp 67500Wp 75000Wp 60000Wp 75000Wp power Number of MPP trackers Number for DC inputs Max. input voltage 1100V Start-up voltage 200V Rated input voltage...
  • Page 77 SOFAR 25~50KTLX-G3 User manual Active power 0~100% adjustable range THDi <3% Power factor 1 default (adjustable +/-0.8) Efficiency 98.8% 98.8% 98.8% 98.9% 98.9% Max efficiency European weighted 98.2% 98.2% 98.2% 98.2% 98.2% efficiency Protection DC reverse polarity protection Anti-islanding protection Leakage current protection Ground fault...
  • Page 78 SOFAR 25~50KTLX-G3 User manual Allowable relative 0~100% humidity range Max. operating 4000m altitude Noise <60dB Weight 37kg Cooling 585×480×220mm Dimension Display LCD & Bluetooth +APP Warranty 5 years, Optional: 7 years/ 10 years Standard EN 61000-6-2, EN 61000-6-3, EN 61000-3-11, EN 61000-3-12 Safety standard IEC 62109-1/2, IEC 62116, IEC 61727, IEC 61683, IEC 60068(1,2,14,30),IEC 60255 AS/NZS 4777, VDE V 0124-100, V 0126-1-1, VDE-AR-N 4105, CEI 0-21/CEI 0-16,...

  • Page 79: Quality Assurance

    SOFAR 25~50KTLX-G3 User manual 9.Quality Assurance Standard warranty period The standard warranty period of inverter is 120 months (10 years). There are two calculation methods for the warranty period: 1. Purchase invoice provided by the customer: the first flight provides a standard warranty period of 120 months (10 years) from the invoice date;...
  • Page 80 SOFAR 25~50KTLX-G3 User manual extended warranty card to the customer to confirm the extended warranty period. Invalid warranty clause Equipment failure caused by the following reasons is not covered by the warranty: 1) The "warranty card" has not been sent to the distributor or our company; 2) Without the consent of our company to change equipment or replace parts;...
  • Page 81 ADD: 11/F., Gaoxinqi Technology Building, No.67 Area, Xingdong Community, Xin’an Sub-district, Bao’an District, Shenzhen City,China Email: service@sofarsolar.com Tel: 0510-6690 2300 Web: www.sofarsolar.com...

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