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Sofar 100KTLX-G4 User Manual

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

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  • Page 1 USER MANUAL SOFAR 100~125KTLX-G4 Shenzhen SOFARSOLAR Co.,Ltd.

  • Page 2: Table Of Contents

    CONTENTS Preface Basic Safety Information 1.1 Requirement for Installation and Maintenance 1.2 Symbols and Signs Product Characteristics 2.1 Intended Use 2.2 Function Description 2.3 Electrical Block Diagram 2.4 Others Inverter Storage Installation 4.1 Installation Process 4.2 Checking Before Installation 4.3 Tools 4.4 Determining the Installation Position 4.5 Moving of Inverter 4.6 Installation...
  • Page 3 Electrical Connection 5.1 Electrical Connection 5.2 Terminal Connector 5.3 Grounding Connection (PE) 5.4 Connect Grid Side of Inverter(AC-Output) 5.5 Connect PV Side of Inverter(DC-Input） 5.6 Communication Connection Commissioning of inverter 6.1 Cable Connection Inspection 6.2 Start Inverter Operation interface 7.1 Operation and Display Panel 7.2 Standard Interface 7.3 Main Interface 7.4 Updating Inverter Software...

  • Page 4: Preface

    V1.0 20230207 Initial version Outline This manual is an integral part of SOFAR 100~125KTLX-G4. 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 100KTLX-G4;SOFAR 110KTLX-G4;...
  • Page 5 100~125KTLX-G4 User Manual Symbols Used The following types of safety instruction and general information appear in this document as described below: “Danger”indicates a hazardous situation which, if not avoided, will result in death or serious injury. Danger “Warning”indicates a hazardous situation which, if not avoided,could result in death or serious injury Warning “Caution”indicates a hazardous situation which, if not avoided, could...

  • Page 6: Basic Safety Information

    Label and Symbols SOFAR 100~125KTLX-G4 has type label attach the side of product which contact important information and technical data, the type label must permanent attached to the product. SOFAR 100~125KTLX-G4 has warming symbol attache the product which contact information of safety operation.
  • Page 7 100~125KTLX-G4 User Manual Installation location requirement Please install the inverter according to the following section. Place inverter in an appropriate bearing capacity objects (such as solid brick wall, or strength equivalent mounting surface, etc.) and make sure inverter vertical placed. A proper installation location must have enough space for fire engine access in order for maintenance if faulty occur.
  • Page 8 100~125KTLX-G4 User Manual Operation Touching the utility grid or the terminal conductors can lead to lethal electric shock or fire! Do not touch non-insulated cable ends, DC conductors and any live compo- Danger nents of the inverter. Attention to any electrical relevant instruction and document. Enclosure or internal components may get hot during operation.

  • Page 9: Symbols And Signs

    SOFARSOLAR will not take the responsibility including warranty Signs on the Product and on the Type Label SOFAR 100~125KTLX-G4 has some safety symbols on the inverter. Please read and fully understand the content of the symbols before installation. Symbols...
  • Page 10 100~125KTLX-G4 User Manual The product can get hot during operation. Avoid contact Caution of hot during operation. Prior to performing any work on the surface product, allow the product to cool down sufficiently Comply with the Conformite The product comply with the CE Certification Europeenne (CE ) Certification Grounding...

  • Page 11: Product Characteristics

    Introduce the electrical block diagram of the product 2.1 Intended Use SOFAR 100~125KTLX-G4 is a transformerless on grid PV inverter, that converters the direct current of the PV array to the grid-compliant, three-phase current and feeds into the utility grid.

  • Page 12: Function Description

    100~125KTLX-G4 User Manual Dimensions Description • SOFAR 100~125KTLX-G4 L×W×H=970*695*325mm Figure 2-2 Product front view and left view dimensions Figure 2-3 Product back view and bracket dimensions Labels on the equipment Note: label must NOT be hidden with objects and extraneous parts (rags, boxes, equipment, etc.,);...

  • Page 13: Electrical Block Diagram

    The PID effect can be recovered at night to protect the PV modules. 2.3 Electrical block diagram SOFAR 100~125KTLX-G4 has 20 DC input strings. 10 MPPT trackers that converters the direct current of PV array to grid-compliant, three phase current and feeds in into the utility grid. Both DC and AC side has Surge Protection Device (SPD).

  • Page 14: Others

    100~125KTLX-G4 User Manual 2.4 Others • Initial short-circuit AC current is 756.7A-peak • As indicated in VDE-AR-N 4105:2018-11, section 6 Construction of the power generation system/network and system protection (NS protection), the requirements for the network and system protection differ depending on the maximum apparent power(SAmax∑SAmax) of the generating and storage units connected to the same network connection point.

  • Page 15: Inverter Storage

    100~125KTLX-G4 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%, no conden- sation Figure 3-1 Storage temperature and humidity •...

  • Page 16: Installation

    100~125KTLX-G4 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. Danger The enclosure and heat sink will get hot during operation, please do not mount the product at a easy to reach location.
  • Page 17 100~125KTLX-G4 User Manual Table 4-1 Components and mechanical parts that inside the package ① ② SOFAR Rear Panel×1pcs 100~125KTLX-G4 ×1pcs ③ ④ PV- input connector PV+ input connector ×20pcs ×20 pcs ⑤ ⑥ PV+ metal pin PV- metal pin ×20pcs ×20pcs...

  • Page 18: Tools

    100~125KTLX-G4 User Manual 4.3 Tools Prepare tools required for installation and electrical connection as following table: Table 4-2 Installation tools ① ② Description: Screwdriver Description: Hammer Drill Recommend Function: Use to tighten and loosen drill @ 10mm screws when installing AC power cable Function: Used to drill holes on the wall Use to remove AC connectors from the product...

  • Page 19: Determining The Installation Position

    100~125KTLX-G4 User Manual 4.4 Determining the Installation Position Select a appropriate location to install the product to make sure the inverter can work in a high efficiency condition. When selecting a location for the inverter, consider the following: Note: Install vertical or backward tilt within 0-75°, Do not install forward or upside down! Vertical installation Tilt back installation 0~75°...

  • Page 20: Moving Of Inverter

    100~125KTLX-G4 User Manual ≥800mm ≥1000mm ≥300mm ≥600mm Figure 4-3 Clearance for multiple inverters 4.5 Moving of inverter Manual handling Unload the inverter from package, horizontally move to the install position. When open the package, at least two operator insert the hands into the slots on both side of the inverter and hold the handles.

  • Page 21: Installation

    100~125KTLX-G4 User Manual 4.6 Installation Installed on wall Step 1：Placed the rear panel on the mounting wall, determine the mounting height of the bracket and mark the mounting poles accordingly. Drilling holes by using Hammer Drill, keep the hammer drill perpendicular to the wall and make sure the position of the holes should be suitable for the expansion bolts.
  • Page 22 100~125KTLX-G4 User Manual Step 4：Lift the inverter and hang it on the rear panel,and fixing both side of inverter with M6 screw (accessories). Figure 4-8 Fix inverter ©Shenzhen SOFARSOLAR Co., Ltd. All copy reserved...
  • Page 23 100~125KTLX-G4 User Manual Bracket Installation: Step 1：Use wall mount bracket, ensure the pole position are in same level by using level rule and take a mark with maker. Figure 4-9 Ensure hole position Step 2：Drilling hole by using Hammer Drill, recommend to do a stain proofing. Figure 4-10 Drilling holes Step 3：Use M10 screw and M10 flat washer to secure the wall bracket（Note：M10*50 screw and M10 flat washer need self-preparation).
  • Page 24 100~125KTLX-G4 User Manual Step 4：Lift the inverter and hang it on the wall bracket,and fixing both side of Inverter with M6 screw. Repeat 4.6.1step4 Note: The stand must be firmly anchored to the ground to avoid shaking and tipping. ©Shenzhen SOFARSOLAR Co., Ltd. All copy reserved...

  • Page 25: Electrical Connection

    100~125KTLX-G4 User Manual 5.Electrical Connection Outlines of this Chapter This section introduces the electrical connection for the product. Please read the information carefully, it may helpful to understand the grounding wiring, DC input connection, AC output connection and communication connection. Caution: Before performing electrical connections, ensure the DC switch is OFF and AC circuit breaker is OFF.

  • Page 26: Electrical Connection

    100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual 5.1 Electrical Connection Connect AC output Start Connect PGND cable power cable Connect communication cables Connect DC input cable （not mandatory） 5.2 Terminal Connector Connector description as below: Figure 5-1 Introduction to terminal blocks *Take picture as reference Mark Name...

  • Page 27: Grounding Connection (Pe)

    5.3 Grounding Connection (PE) Connect the inverter to the grounding electrode using ground cable. SOFAR 100~125KTLX-G4 is a transformerless inverter which requires the positive pole and negative pole of the PV array are NOT grounded. Otherwise, it will cause inverter failure. In the PV system, all non-cur-...

  • Page 28: Connect Grid Side Of Inverter(Ac-Output)

    100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Step 3：Remove the screw from the bottom side of inverter (Shown as figure 5-4), connect the grounding cable to the grounding point and tighten the grouping screw. Torque is 6-7N.m. A.M8 hexagon screw B. grounding cable Figure 5-4 Inverter external grounding instruction diagram Note : For improving anti-corrosion performance, after ground cable installed, apply silicone or paint is preferred to protect.
  • Page 29 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Step 2: Open wiring box cover. Figure 5-5 Open wiring box 5.4.2 Wiring Terminal and Precautions Note： Before connect to grid, please ensure the grid voltage and frequency of local grid meet the requirement of inverter , any question please seek local grid company for help. Inverter can only connect to grid after get the permission from local grid company.
  • Page 30 -sectional cable cable Module area of L/N(mm²) area of P/E(mm²) O.D. range(mm) O.D. range(mm) SOFAR Copper Wire:95~185 16~35 ≤60 ≤32 100~125KTLX-G4 Aluminum Wire:120~240 Step 1: Open the cover, refers to section 5.4.1. Step 2: Turn OFF the AC circuit breaker and secure against reconnection.
  • Page 31 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Step 6: 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: Note: Phase lines use M12 terminal connector, PE line use M8 terminal connector.

  • Page 32: Connect Pv Side Of Inverter

    100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual 5.5 Connect PV Side Of Inverter(DC-Input） Note： Connecting PV strings into inverter must following the below procedure. Otherwise, any faulty cause by inappropriate operation will be including in the warranty case. Ensure the maximum short circuit current of PV strings should less than the maximum inverter DC current input.
  • Page 33 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Step 3: Insert wire into the connector cap nut and assemble into the back of male or female plug, When you heard a “click”, the pin tact assembly is seated correctly. (3. Positive connector, 4. Negative connector); Click 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...

  • Page 34: Communication Connection

    By the USB acquisition stick (WiFi), transfer the inverter power output information, alarm information, operation state to the PC terminal or local data acquisition device, then uploaded to the server. Register remote monitoring of SOFAR 100~125KTLX-G4 at its relevant website or APP according to monitoring device SN.
  • Page 35 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual 5.6.2 COM—Multi function communication port Table 5-3 Recommend com cable size Name Type Outer diameter(mm) Area(mm²) Outdoor shielded twisted RS485 Communication Wire 3core：4~8 0.25~1 pair meets local standards Port Description: COM1: Define Function Note RS485A RS485 signal+ RS485A...
  • Page 36 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual 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. Table 5-4 Function description of the DRMs terminal Function DRM1/5...
  • Page 37 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Table 5-6 The inverter is preconfigured to the following RRCR power levels Relay status: close is 1, open is 0 Active Power cos(φ) 100% C. Logic interface for EN50549-1:2019, is in order to cease active power output within five seconds following an instruction being received at the input interface.
  • Page 38 RS 485/USB Figure 5-14 Picture of the RS485/USB converter and PC terminal If only one SOFAR 100~125KTLX-G4 is used, use a communication cable, refer to section 5.6.2 for COM pin definition, and choose either of the two RS485 ports. RS 485/USB...

  • Page 39: Commissioning Of Inverter

    Step 1: Turn ON the DC switch. Step 2: Turn ON the AC circuit breaker. When the DC power generated by the solar array is enough, the SOFAR 100~125KTLX-G4 inverter will start automatically. Screen showing“normal”indicates correct operation. NOTE 1: Choose the correct country safety code.

  • Page 40: Operation Interface

    100~125KTLX-G4 User Manual User Manual 7.Operation interface Outlines of this chapter This section introduces the display, operation, buttons and LED indicator lights of SOFAR 100~125KTLX-G4 Inverter. 7.1 Operation and Display Panel Buttons and Indicator lights Button: “^” Short press UP button = go up；“^” Long press UP button = exit current interface；...
  • Page 41 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual 3.Inverter working status, today generated 4.Inverter working status, total generated electricity electricity 5.Inverter working status, grid voltage and 6.Inverter working status, grid voltage and current frequency 7.Inverter working status, WiFi/ RS485 8.Inverter faulty alarm status 9.When power turn on, LCD interface displays INITIALIZING, refer below picture Initializing..

  • Page 42: Main Interface

    100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Check: Inverter is checking isolation resistor, relays, and other safety requirements. It also does self-test to ensure inverter software and hardware are well functional. Inverter will go to Fault State or Permanent State if any error or fault occurs. Normal: Inverter enter to Normal State，it is feeding power to the grid;...
  • Page 43 Set the address (when you need to monitor multiple inverters simultaneously)，Default 01. 8.Set Input mode SOFAR 100~125KTLX-G4 has 10 MPPTs, these MPPTs can work interdependently, or divided into parallel mode. User can change the setting according to the configuration. 9.Set Language Set the inverter display language.
  • Page 44 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual 14.Set Power Derating Set active load shedding function switch , percentage load shedding. 15.PCC Select Select the parallel network sampling method. 16.PID Enable or disable PID function. When the PID module is enabled(enter the default password: 0001),it will work between 0 a.m.
  • Page 45 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual B.Event List: Event List is used to display the real-time event records, including the total number of events and each specific ID No. and happening time. User can enter Event List interface through main interface to check details of real-time event records, Event will be listed by the happening time, and recent events will be listed in the front.

  • Page 46: Updating Inverter Software

    User Manual 7.4 Updating Inverter Software SOFAR 100~125KTLX-G4 inverter offer software upgrade via USB flash drive to maximizeinverter performance and avoid inverter operation error caused by software bugs. Step 1: Turn off AC circuit breaker and DC switch, remove the communication board cover as below figure.

  • Page 47: Trouble Shooting And Maintenance

    100~125KTLX-G4 100~125KTLX-G4 User Manual 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: 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 48 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Code Name Description Solution Power grid line under-frequency protection points after obtaining ID011 VGridLineFault approval from the local electrical grid operator. voltage error Inverter voltage error ID012 InvVoltFault Anti-countercurrent ID013 RefluxFault overload grid voltage imbalance ID014 VGridUnbalance Power grid current...
  • Page 49 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Code Name Description Solution ID037 HwAuxPowerFault Auxiliary power error Inverter soft startup ID038 InvSoftStartFail failed Check whether the photovoltaic module connection Arc shutdown ID039 ArcShutdownAlarm line and terminals have bad arc contact. If there is a protection fault, please repair the fault in time.
  • Page 50 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Code Name Description Solution Module 3 temperature TempErrInv3 ID061 protection Inverter Module Temperature TempDiffErrInv ID062 Difference is too large Unbalanced bus BusRmsUnbalance ID065 voltage RMS Internal faults of inverter, switch OFF inverter, wait The transient value of bus for 5 minutes, then switch ON inverter.
  • Page 51 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Code Name Description Solution Inverter bus balance ID090 IbalanceOCP current protection Software AC Over ID091 SwAcCBCFault Current Protection Inverter bus hardware ID098 HwBusOVP overvoltage BuckBoosthardware ID099 HwBuckBoostOCP overflows PV hardware ID102 HwPVOCP overflows Ac output hardware ID103 HwACOCP overflows...
  • Page 52 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Code Name Description Solution Output transient overcurrent ID134 PermAcOCPInstant permanent failure PPermanent failure of ID135 PermIacUnbalance unbalanced output current Input mode setting error ID137 PermInCfgError permanent failure Check the PV input mode (parallel/independent mode) Settings for the inverter. If not, change the PV Input overcurrent input mode.

  • Page 53: Maintenance

    100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Code Name Description Solution ID163 Drms0Shutdown Drms0 shutdown The inverter is performed a remote shutdown ID165 RemoteDerating Remote derating The inverter is performed for remote load reduction The inverter is loaded by the execution logic interface ID166 LogicIfDerating Logic interface derating...

  • Page 54: Pid Recovery

    100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual 8.3 PID Recovery When the inverter is running, the PID function module increases the potential between the negative pole of the photovoltaic array and the ground to a positive value to suppress the PID effect. Note：...

  • Page 55: Technical Data

    100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual 9.Technical Data Outlines of this Chapter This topic lists the technical specifications for SOFAR 100~125KTLX-G4 inverter. 9.1 Parameter Table: SOFAR SOFAR SOFAR SOFAR Datasheet 100KTLX-G4 110KTLX-G4 125KTLX-G4 125KTLX-G4-A Input (DC) Max. input voltage 1100V...
  • Page 56 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual Protection DC reverse polarity protection Anti-islanding protection Leakage current protection Ground fault monitoring PV-array string fault monitoring DC switch PID recovery AFCI PV: type II standard AC: type II Standard General Data Ambient temperature range -30℃~+60℃...

  • Page 57: Quality Assurance

    100~125KTLX-G4 100~125KTLX-G4 User Manual 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: Purchase invoice provided by the customer: the first flight provides a standard warranty period of 60 months (5 years) from the invoice date;...
  • Page 58 100~125KTLX-G4 100~125KTLX-G4 User Manual User Manual • Failure to follow the product User Manual, installation manual and maintenance guidelines; • Improper use or misuse of the device; • Poor ventilation of the device; • The product maintenance process does not follow relevant standards; •...
  • Page 59 Version 1.0 ENERGY TO POWER YOUR LIFE ADDRESS 11th Floor, Gaoxingqi Technology Building, District 67, Xingdong Community, Xin’an Street, Bao’an District, Shenzhen, China 301.00000344-1 EMAIL info@sofarsolar.com WEBSITE www.sofarsolar.com...

This manual is also suitable for:

110ktlx-g4125ktlx-g4125ktlx-g4-a

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