Sofar solar 15KTLX-G3 User Manual
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Sofar solar 15KTLX-G3 User Manual

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User manual
Solar Grid-tied Inverter
Product Model: SOFAR 15~24KTLX-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 15KTLX-G3

  • Page 1 User manual Solar Grid-tied Inverter Product Model: SOFAR 15~24KTLX-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 15~24KTLX-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 15~24KTLX-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 SOFAR 15~24KTLX-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 15KTLX-G3 SOFAR 15KTLX-G3-A SOFAR 17KTLX-G3 SOFAR 20KTLX-G3 SOFAR 20KTLX-G3-A SOFAR 22KTLX-G3...

  • Page 5: Basic Safety Information

    SOFAR 15~24KTLX-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 15~24KTLX-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 15~24KTLX-G3 User manual Transportation Requirement 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 15~24KTLX-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 15~24KTLX-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 15~24KTLX-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 15~24KTLX-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 15~24KTLX-G3 User manual batteries will against the warranty condition and SOFARSOLAR will not take the responsibility. Intended grid types SOFAR 15~24KTLX-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 User manual Product Dimensions The choice of optional parts of inverter should be made by a qualified technician who knows the installation conditions clearly. Dimensions Description SOFAR 15KTLX-G3、15KTLX-G3-A、17KTLX-G3、20KTLX-G3、20KTLX-G3-A、  22KTLX-G3、24KTLX-G3、24KTLX-G3-A L×W×H=520*430*189mm Figure 2-3 Front, side and back of the machine (15~24K)
  • Page 14 SOFAR 15~24KTLX-G3 User manual Function description of inverter box bottom 1. DC Switch 5. Breather valve 2. DC negative poles connecters 6. COM Port (for RS485 communication) 3. DC positive poles connecters 7. AC output 4. USB Port (for WIFI or Ethernet 8.

  • Page 15: Function Description

    SOFAR 15~24KTLX-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 15~24KTLX-G3 User manual 2.3. Electrical block diagram Figure 2-8 Schematic diagram 2.4. Efficiency and derating curve Figure 2-9 Power efficiency curve (take 20KW for example) - 12 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.
  • Page 17 SOFAR 15~24KTLX-G3 User manual Figure 2-10 Rated Power ratio vs Grid Voltage - 13 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • Page 18: Inverter Storage

    SOFAR 15~24KTLX-G3 User manual 3.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%, ...

  • Page 19: Installation

    SOFAR 15~24KTLX-G3 User manual 4.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 20 SOFAR 15~24KTLX-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 4-1Components and mechanical parts that inside the package Pictures Description Quantity...
  • Page 21 SOFAR 15~24KTLX-G3 User manual M6*12 Hexagon screws 1 PCS Manual 1PCS Warranty Card 1PCS Quality Certificate 1PCS R-type terminal 5PCS Communication 1PCS Terminal USB acquisition stick 1 PCS (Optional) (WIFI/Ethernet) Note ： The first communication terminal is used as an default example in the description of the machine appearance in the manual.

  • Page 22: Tools

    SOFAR 15~24KTLX-G3 User manual 4.3. Tools Prepare tools required for installation and electrical connection as following table: Figure 4-2 Installation tools Tool Description Function Hammer Drill Recommend Used to drill holes on the wall drill @ 60mm Use to tighten and loosen screws when installing AC Screwdriver power cable...

  • Page 23: Determining The Installation Position

    SOFAR 15~24KTLX-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 15~24KTLX-G3 User manual Figure 4-1 Installation Position Selection Figure 4-2 Clearance for single inverter - 20 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • Page 25: Moving Of Inverter

    SOFAR 15~24KTLX-G3 User manual Figure 4-3 Clearance for multiple inverters 4.5. 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 15~24KTLX-G3 User manual 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 the damage of the shell of inverter.
  • Page 27 SOFAR 15~24KTLX-G3 User manual Figure 4-7 Installation instruction (2) Step 5：User can use a lock to block the inverter in case of stealing (Optional) - 23 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.

  • 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 15KTLX-G3 23.9A SOFAR 15KTLX-G3-A 23.9A 36A/36A SOFAR 17KTLX-G3 27.1A SOFAR 20KTLX-G3 31.9A...
  • Page 29 SOFAR 15~24KTLX-G3 User manual SOFAR 20KTLX-G3-A 31.9A SOFAR 22KTLX-G3 35.1A SOFAR 24KTLX-G3 38.3A SOFAR 24KTLX-G3-A 38.3A Note: In the above table, the first value of IscPV is for MPPT1, the second value of IscPV is for MPPT2； The DVC is the voltage of a circuit which occurs continuously between any two live part in the worst-case rated operating condition when used as intended.

  • Page 30: Grounding Connection (Pe)

    SOFAR 15~24KTLX-G3 User manual 5.1. Electrical Connection Figure 5-1 flowchart for connecting cables to the inverter 5.2. Grounding Connection (PE) Connect the inverter to the grounding electrode using ground cable SOFAR 15~24KTLX-G3 is a Non-isolated inverter which requires the positive pole and negative pole of the PV array are NOT grounded. Otherwise, it will cause inverter failure.

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

    SOFAR 15~24KTLX-G3 User manual using a crimping tool, as shown as figure 5.3. Recommend using OT terminal: OT-M6, Cable: ≥4mm Figure 5-3 Grounding connection instruction（2） Note 1: L3 is the length between the insulation layer of the ground cable and crimped part.
  • Page 32 AC Circuit Breaker area of Cu cable outdoor cable Model specification （mm ） （mm） SOFAR 40A/230V/3P current 6~12， 18~25 15KTLX-G3 recommend 10 leakage protection 0.1A SOFAR 6~12， 40A/230V/3P current 18~25 17KTLX-G3 recommend 10 leakage protection 0.1A SOFAR 50A/230V/3P current 6~12，...
  • Page 33 SOFAR 15~24KTLX-G3 User manual Figure 5-5 Incorrect connection between load and inverter The resistance at connection point must less than 2Ω. In case to have a properly anti-islanding function, please choose the high-quality PV cable and ensure the power loss is less than 1%. Meanwhile, the inverter AC side to grid connection point must less than 100m.
  • Page 34 SOFAR 15~24KTLX-G3 User manual Multi-core cable Figure 5-7 SOFAR 15~24KTLX-G3 AC terminal connector picture Wiring Procedure as following: Step 1: Remove the AC waterproof cover screw with a screwdriver, and take out the stopper in the PG waterproof joint. Figure 5-8 Removing AC waterproof cover diagram Step 2: Select the appropriate cable diameter according to table 5-1, process the cable according to the following picture size requirements, and then pass through PG waterproof joint;...

  • Page 35: Connect Pv Side Of Inverter (Dc-Input)

    5.4. Connect PV side of inverter (DC-Input) DC Switch is a model of the following specifications or equivalent, subject to CEC certification number. Inverter model Model of DC switch SOFAR 15KTLX-G3 NDG3V-50/4/1/01/M/AS ( AZ 69025902 SOFAR 15KTLX-G3-A The AS/NZS IEC60947.1:2015 standards) SOFAR 17KTLX-G3...
  • Page 36 SOFAR 15~24KTLX-G3 User manual SOFAR 24KTLX-G3-A Table 5-2 recommend DC input cable size (maximum tolerance voltage >= 1100V PV cable) Cable OD (mm) Copper cable cross section area（mm ） 2.5~6.0 6.0~9.0 Table 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.
  • Page 37 SOFAR 15~24KTLX-G3 User manual Figure 5-13 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 5-14 DC cable connection(4) Figure 5-15 Use a multimeter to check the positive and negative electrodes Note：Please use multimeter to make sure the PV array positive pole and negative pole!

  • Page 38: Communication Connection

    SOFAR 15~24KTLX-G3 User manual Figure 5-16 Removal DC connector 5.5. Communication Connection When layout the wiring diagram, please separate the communication wiring and power wiring in case the signal be affected. Note 15~24KTLX-G3 inverter has one USB Port and one COM Port, as shown in the following figure.
  • Page 39 SOFAR 15~24KTLX-G3 User manual ① ② ③ For details, please refer to the user manual of USB acquisition stick. 5.5.2. COM—Multi function communication port Table 5-3 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 40 SOFAR 15~24KTLX-G3 User manual DRM4/8 13-16 Blank PIN Procedure(Corresponding to the first communication terminal)： ② ③ ① ④ ⑤ Procedure(Corresponding to the second communication terminal)： ① ② ③ - 36 - Copyright © Shenzhen SOFARSOLAR Co., Ltd.
  • Page 41 SOFAR 15~24KTLX-G3 User manual ④ ⑤ 5.5.3. 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 42 SOFAR 15~24KTLX-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 43 SOFAR 15~24KTLX-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 44 SOFAR 15~24KTLX-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 45 SOFAR 15~24KTLX-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 46 SOFAR 15~24KTLX-G3 User manual Figure 5-21 Picture of the RS485/USB converter and PC terminal If only one SOFAR 15~24KTLX-G3 is used, use a communication cable, refer to section 5.5.2 for COM pin definition, and choose either of the two RS485 ports. Figure 5-22 A single SOFAR 15~24KTLX-G3 connecting communications If multiple SOFAR 15~24KTLX-G3 are used, connect all SOFAR 15~24KTLX-G3 in daisy chain mode over the RS485 communication cable.
  • Page 47 SOFAR 15~24KTLX-G3 User manual 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 acquisition device, then uploaded to the server.
  • Page 48 SOFAR 15~24KTLX-G3 User manual The length of the WIFI communication cable should be less than  100 m. Note If multiple SOFAR 15~24KTLX-G3 are connected to the  monitoring device over an RS485/USB converter, a maximum of 31 inverters can be connected in a daisy chain. - 44 - Copyright ©...

  • Page 49: Commissioning Of Inverter

    SOFAR 15~24KTLX-G3 User manual 6.Commissioning of inverter Outlines this Chapter Introduce SOFAR 15~24KTLX-G3 safety inspection and start processing 6.1. 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 50: Shutdown Inverter

    SOFAR 15~24KTLX-G3 User manual If the inverter indicates any fault, please refer to Section 8.1 of this manual — — trouble shooting for help. 6.3. Shutdown inverter Step 1: Turn OFF the AC circuit breaker. Step 2: Turn OFF the DC switch. 6.4.

  • Page 51: Operation Interface

    SOFAR 15~24KTLX-G3 User manual 7.Operation interface Outlines of this chapter This section introduces the display, operation, buttons and LED indicator lights of SOFAR 15~24KTLX-G3 Inverter. 7.1. Operation and Display Panel Buttons and Indicator lights GFCI lamp Up button Normal lamp Down button Alarm lamp LCD screen...

  • Page 52: Standard Interface

    SOFAR 15~24KTLX-G3 User manual 7.2. 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 generated power Inverter working status, today generated electricity Inverter working status, total generated electricity...
  • Page 53 SOFAR 15~24KTLX-G3 User manual 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. - 49 - Copyright ©...

  • Page 54: Main Interface

    SOFAR 15~24KTLX-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 55 SOFAR 15~24KTLX-G3 User manual (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 14.Reflux Mode 7.Set Address 15.Autotest Fast 8.Set Input mode...
  • Page 56 SOFAR 15~24KTLX-G3 User manual can only be viewed and not modified be modified by the end user. Please contact and discuss with SOFARSOLAR technical support if you require a non standard parameter set. Code Country Code Country 000* Germany VDE4105 Cyprus Germany BDEW India...
  • Page 57 SOFAR 15~24KTLX-G3 User manual 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 default values for Australia Region A, B, C respectively.
  • Page 58 SOFAR 15~24KTLX-G3 User manual Voltage Australia C Inverter output (P) % of S 100% 100% rated Default volt-var settings for different regions are shown in the following table: Region Default value Voltage Australia A Inverter reactive output 44% supplying 60% sinking (Q) % of S rated Voltage...
  • Page 59 SOFAR 15~24KTLX-G3 User manual grid information. “Enter” 1Enter setting “OK” 1 Set Time 2 Event List 2 Clean Energy “Up”↑ 3 System Info “Up”↑ 3 Clean Events ..“Down↑ 4 Display Time “Down”↑ 5 Software Update 10 Set Reflux P “OK”...
  • Page 60 SOFAR 15~24KTLX-G3 User manual The function is divided into two options: PCC Meter and PCC ARPC, the first one is the default usage for SOFAR 15-24KTLX-G3. Refer to <7.5 Smart meter instruction in this manual for specific operation methods. 14. Reflux Mode The function is divided into three options: CTR Totalpower, CTR Phasepower and CTR SellingPower, the first one is the default usage for SOFAR 15-24KTLX-G3.
  • Page 61 SOFAR 15~24KTLX-G3 User manual ↓ 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 ↓ Short press the “∨” 59.S2 threshold 264.5V 200ms ↓...
  • Page 62 SOFAR 15~24KTLX-G3 User manual ↓ 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 “∨” The test procedure is same as Autotest Fast, but it’s much more time consuming.

  • Page 63: Updating Inverter Software

    SOFAR 15~24KTLX-G3 User manual enter "3. SystemInfo". Turning the page down can select the system information to view. (B) Display Time Long press the button and short press the button to turn the page in the standard user interface to enter into “4. Display Time”, then long press the button to display the current system time.

  • Page 64: Smart Meter Instruction

    SOFAR 15~24KTLX-G3 User manual Step 5 ： Then turn on DC switch, srceen show “recoverable fault” (as AC circuit breaker still open, inverter cannot detect grid power, so it may show “recoverable fault”) Step 6：Long press “DOWN” button to enter the menu, then short press “DOWN”...
  • Page 65 SOFAR 15~24KTLX-G3 User manual Setting" interface, and then Short press DOWN button to enter the "10. Set AntiReflux" interface, long press DOWN button to confirm the input password (initial password is 0001), the power setting can be entered by pressing the UP or DOWM button to find the "Reflux Enable", and Long press the DOWM button for confirmation;...

  • Page 66: Trouble Shooting And Maintenance

    SOFAR 15~24KTLX-G3 User manual 8.Trouble shooting and maintenance 8.1. Troubleshooting This section describes the potential errors for this product. Please read carefully for the following tips when doing the troubleshooting: Check the warning message or faulty codes on the inverter information panel If not any error code display on the panel, please check the following lists:...
  • Page 67 SOFAR 15~24KTLX-G3 User manual List 8-1 Even list Even Even List Event List Name Even Reason & Solution List ID Description If the alarm occurs occasionally, the possible cause is that the electric The power grid grid is abnormal occasionally. ID01 GridOVP voltage is too...
  • Page 68 SOFAR 15~24KTLX-G3 User manual PV cable. ID06 OVRT OVRT faulty ID07 LVRT LVRT faulty ID08 IslandFault Islanding faulty Grid ID09 GridOVPInstant1 instantaneous voltage too high 1 Grid ID10 GridOVPInstant2 instantaneous voltage too high 2 There are internal faults of inverter, Grid Line voltage turn OFF the “DC switch”...
  • Page 69 SOFAR 15~24KTLX-G3 User manual rectified. If no, please contact sampling（AC technical support. side） HwADFaultIdcBr Current Branch ID23 anch sampling faulty DC input current ID24 HwADFaultIdc sampling faulty The GFCI sampling value ConsistentFault_ between the ID29 GFCI master DSP and salve DSP is not consistent The Grid voltage sampling value...
  • Page 70 SOFAR 15~24KTLX-G3 User manual method is not ruled out, please contact the new energy customer service of Capital Airlines. Please check the wiring of PV string, whether each PV input is Input mode independent. If the use method is ID44 PvConfigError incorrect not ruled out, please contact the...
  • Page 71 SOFAR 15~24KTLX-G3 User manual Unbalanced RMS VbusRmsUnbala There are internal faults of inverter, ID65 value of bus turn OFF the “DC switch”, wait for 5 voltage minutes, then turn ON the “DC Unbalanced switch”. Check whether the fault is VbusInstantUnb instantaneous rectified.
  • Page 72 SOFAR 15~24KTLX-G3 User manual current technical support. protection BuckBoost SwBuckBoostOC ID84 software overcurrent Output RMS ID85 SwAcRmsOCP current protection PV overcurrent ID86 SwPvOCPInstant software protection PV parallel ID87 IpvUnbalance unbalance Output current ID88 IacUnbalance unbalance ID89 AFCIFault Arc Fault Balanced current ID90 IBalanceOCP overcurrent...
  • Page 73 SOFAR 15~24KTLX-G3 User manual hardware overcurrent ID100 Reserved Reserved PV hardware ID102 HwPVOCP overcurrent AC output There are internal faults of inverter, ID103 HwACOCP hardware turn OFF the “DC switch” , wait for overcurrent 5 minutes, then turn ON the “DC Overload switch”.
  • Page 74 SOFAR 15~24KTLX-G3 User manual If it occurs frequently, please check whether the grid voltage and grid frequency are within the allowable range of the inverter; if not, please contact the customer service of SOFARSOLAR; if yes, please check Frequency whether the connection between ID114 FreqDerating derating...
  • Page 75 SOFAR 15~24KTLX-G3 User manual Busovervoltage unrecoverHwBus ID131 hardware permanent fault PV unbalance unrecoverIpvUn ID132 current balance permanent fault ID133 Reserved Reserved There are internal faults of inverter, turn OFF the “DC switch”, wait for 5 Output transient minutes, then turn ON the “DC unrecoverAcOCP overcurrent ID134...
  • Page 76 SOFAR 15~24KTLX-G3 User manual ID145 USBFault USB Failure ID146 WiFiFault WIFI failure ID147 BluetoothFault Bluetooth failure ID148 RTCFault RTCClock failure Communication CommEEPROMF ID149 BOARD EEPROM ault error Communication CommEEPROMF ID150 BOARD FLASH ault error ID151 Reserved Reserved Satety Version is There are internal faults of inverter, ID152 SafetyVerFault...
  • Page 77 SOFAR 15~24KTLX-G3 User manual Remote control enables. If it is not ID161 ForceShutdown ForceShutdown controlled by yourself, please disconnect the DC switch of the RemoteShutdow ID162 RemoteShutdown inverter, wait for 5 minutes, and then turn on the DC switch. Observe whether the fault has been Drms0 shunt eliminated after the inverter is ID163...
  • Page 78 SOFAR 15~24KTLX-G3 User manual ID225- Reserved Reserved ID240 Note: the above table is our general fault ID list, all fault IDs of this inverter can be found in the above table; This inverter complies with IEC 62109-2 clause 13.9 for earth fault alarm monitoring.

  • Page 79: Fan Maintenance

    SOFAR 15~24KTLX-G3 User manual 8.3. Fan Maintenance For SOFAR 15~24KTLX-G3 series inverter with fans, if fan is broken or not working properly may cause inverter heat dissipation issue and effect the working efficiency of inverter. Thus, fans need to have regularly cleaning and maintain, details operating as below: Step 1: Closed inverter, check the wiring side to ensure all electrical connection of inverter is turn off ;...

  • Page 80: Technical Data

    SOFAR 15~24KTLX-G3 User manual 9.Technical Data Outlines of this Chapter This chapter outline the SOFAR 15~24KTLX-G3 model type and technical parameters Models marked are only valid in Australia. Model SOFAR *SOFAR SOFAR SOFAR *SOFAR SOFAR SOFAR *SOFAR 15KTLX- 15KTLX- 17KTLX- 20KTLX- 20KTLX- 22KTLX-...
  • Page 81 SOFAR 15~24KTLX-G3 User manual Max. output 23.9A 23.9A 27.1A 31.9A 31.9A 35.1A 38.3A 38.3A current Nominal grid 3/N/PE,220V/380Vac,230V/400Vac voltage Grid voltage 310Vac-480Vac (According to local standard) range Nominal 50 / 60Hz frequency Grid frequency 45Hz-55Hz/54Hz-66Hz (According to local standard) range Active power 0~100% adjustable range...
  • Page 82 SOFAR 15~24KTLX-G3 User manual Maximum inverter back-feed current to the array Output inrush current and 0.8A/2us duration Maximum output 200A/1us fault current and duration Maximum output overcurrent protection Protective class Class I Overvoltage PV: OVC II, AC mains: OVC III category Detection methods of...
  • Page 83 SOFAR 15~24KTLX-G3 User manual Dimension 520*430*189mm Display LCD & Bluetooth +APP Warranty 5 years/ 7 years/ 10 years Standard EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4 Safety standard IEC62109-1/2, IEC62116, IEC61727, IEC61683, IEC60068(1,2,14,30) AS/NZS 4777, VDE V 0124-100, V 0126-1-1, VDE-AR-N 4105, Grid standard CEI 0-21/CEI 0-16, UNE 206 007-1, EN50549, G98/G99, EN50530, NB/T32004 Note: the product may be upgraded in the future.

  • Page 84: Quality Assurance

    SOFAR 15~24KTLX-G3 User manual 10. Quality Assurance Standard warranty period The standard warranty period of inverter is 60 months (5 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 60 months (5 years) from the invoice date;...
  • Page 85 SOFAR 15~24KTLX-G3 User manual Once the extended warranty service is purchased, our company will issue the 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: The "warranty card"...

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