Sofar solar 3.3K-12KTL-X User Manual
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Sofar solar 3.3K-12KTL-X User Manual

Solar grid-tied inverter
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User manual
Solar Grid-tied Inverter
Product Model: SOFAR 3.3K-12KTL-X
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 3.3K-12KTL-X

  • Page 1 User manual Solar Grid-tied Inverter Product Model: SOFAR 3.3K-12KTL-X 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 3.3K~12KTL-X User manual Contents Preface ......................II 1. Basic safety information ...............- 1 - 1.1. Safety instructions ..............- 1 - 1.1. Symbols and signs ..............- 3 - 2. Product characteristics ................- 5 - 2.1. Product identification ..............- 5 - 2.2.
  • Page 3 SOFAR 3.3K~12KTL-X User manual Notice This manual contains important safety instructions that must be followed during installation and maintenance of the equipment. Save these instructions! This manual must be considered as an integral part of the equipment, and must be available at all times to everyone who interacts with the equipment. The manual must always accompany the equipment, even when it is transferred to another user or field.

  • Page 4: Preface

    SOFAR 3.3K~12KTL-X User manual Preface Outline Please read the product manual carefully before installation, operation or maintenance. This manual contains important safety instructions and installation instructions that must be followed during installation and maintenance of the equipment. Scope This product manual describes the assembly, installation, commissioning, and maintenance of the following inverters.
  • Page 5 SOFAR 3.3K~12KTL-X User manual Attention indicates there are potential risks. If fail to prevent, may lead to equipment cannot run normally or property damage. Attention Note provides tips that are valuable for the optimal operation of the product. Note All rights reserved Shenzhen SOFARSOLAR Co ., Ltd.

  • Page 6: Basic Safety Information

    SOFAR 3.3K~12KTL-X User manual 1. Basic safety information If you have any question or problem when you read the following information, please contact Shenzhen SOFARSOLAR Co ., Ltd . Note 1.1. Safety instructions Read and understand the instruction of this manual ,and be familiar with relevant safety symbols in the paragraph, then start to install and debug the equipment.According to the national and state requirements, before connect the grid ,you must get power department permission, and perform the...
  • Page 7 SOFAR 3.3K~12KTL-X User manual If you find packing problems that may cause the damage of the inverter, or find any visible damage, please immediately notice the responsible transportation company. You can ask solar equipment installation contractor or Shenzhen SOFARSOLAR Co.Ltd for help if necessary. Transport of the equipment, especially by road, must be carried out with by suitable ways and means for protecting the components (in particular, the electronic components) from violent shocks, humidity, vibration, etc.

  • Page 8: Symbols And Signs

    SOFAR 3.3K~12KTL-X User manual Some internal components will be very hot when inverter is working. Please wear protective gloves! Attention Maintenance and repair  Disconnected with the PV components array and electricity grid before any repair work;  After turn off AC breaker and DC switch for 5 minutes later, the Danger maintenance or repair of the inverter can be carried out! ...
  • Page 9 SOFAR 3.3K~12KTL-X User manual Be careful of high voltage. Be careful of high temperature. Conformity with European. Point of connection for grounding. This indicates the allowed temperature range. This indicates the degree of protection of the equipment according to IEC standard 70-1 (EN 60529 June 1997).

  • Page 10: Product Characteristics

    SOFAR 3.3K~12KTL-X User manual 2. Product characteristics 2.1. Product identification The Sofar inverters are grid-tied inverters which convert DC current generated by PV modules into AC current and feed it into the public grid. Figure2-1 Interface figure 1-2 PV input terminals(DVC C) 3 WIFI or GPRS communication port(DVC A) 4 RS485(DVC A)
  • Page 11 SOFAR 3.3K~12KTL-X User manual Figure2-2 Inverter front & flank & Dimensions Intended grid types SOFAR 3.3K~12KTL-X inverters are compatible with TN-S, TN-C, TN-C-S, TT IT grid configurations. For the TT type of electricity grid,the voltage between neutral and earth should be less than 30V. - 6 - All rights reserved Shenzhen SOFARSOLAR Co ., Ltd.

  • Page 12: Function Description

    SOFAR 3.3K~12KTL-X User manual Figure2-3 Overview of the grid configurations 2.2. Function description Function module A. Data transmission The inverter may be monitored remotely through an advanced communications system based on an RS485 serial interface, or remotely via the WIFI. B.

  • Page 13: Protection Modules

    SOFAR 3.3K~12KTL-X User manual power which do good to the grid stability. B.5 Power reduction due to environmental conditions, input output voltage The power reduction value and the inverter temperature at which it occurs depend on the ambient temperature and on many operating para-meters. Example: input voltage, grid voltage and power available from the photovoltaic field.
  • Page 14 SOFAR 3.3K~12KTL-X User manual E.Ground fault protection This inverter must be used with panels connected with “floating” connections, that is, with positive and negative terminals without ground connections. An advanced ground fault protection circuit continuously monitors the ground connection and disconnects the inverter when a ground fault is detected .

  • Page 15: Installation

    SOFAR 3.3K~12KTL-X User manual 3. Installation 3.1. Installation Process Figure3-1 Installation flowchart 3.2. Checking Before Installation Checking Outer Packing Materials Packing materials and components may be damaged during transportation. Therefore, check the outer packing materials before installing the inverter. Checking the surface of packing materials for damage, such as holes and cracks.
  • Page 16 SOFAR 3.3K~12KTL-X User manual 2PCS DC+ input terminal 2PCS DC- input terminal Metal terminals secured to DC+ 2PCS input power cables Metal terminals secured to DC- 2PCS input power cables 3PCS M6 Hexagon screws M8*80 Expansion bolts used to 6PCS secure the rear panel to the wall 1PCS AC Output connector...

  • Page 17: Tools

    SOFAR 3.3K~12KTL-X User manual 3.3. Tools Prepare tools required for installation and electrical connections. Table3-2 Shows the components and mechanical parts that should be delivered Tool Model Function Hammer drill With a drill bit of Used to drill holes on the wall Φ8.0 R 45 crimping tool Used to prepare RJ45 connectors for...

  • Page 18: Determining The Installation Position

    SOFAR 3.3K~12KTL-X User manual cover. Crimping tools Used to crimp power cables Vacuum cleaner Used to clean up dusts after drilling holes Multimeter Used to check grounding Marker Used to mark signs Measuring tape Used to measure distances Level Used to ensure that the rear panel is properly installed ESD gloves Operators wear ESD gloves when...
  • Page 19 SOFAR 3.3K~12KTL-X User manual Figure 3-2 Installation position requirements Minimum installation distance for SOFAR 3.3K~12KTL-X - 14 - All rights reserved Shenzhen SOFARSOLAR Co ., Ltd. ©...

  • Page 20: Installing The Sofar 3.3K~12Ktl-X

    SOFAR 3.3K~12KTL-X User manual Figure 3-3 Many Sofar 3.3K~12KTL-X installation 3.5. Installing the SOFAR 3.3K~12KTL-X Step 1 To determine the position for drilling holes, level hole positions, and then mark the hole position by using a marker, use the hammer drill to drill hole on the wall.
  • Page 21 SOFAR 3.3K~12KTL-X User manual Figure 3-4 - 16 - All rights reserved Shenzhen SOFARSOLAR Co ., Ltd. ©...

  • Page 22: Electrical Connections

    SOFAR 3.3K~12KTL-X User manual 4. Electrical Connections 4.1. Electrical connection Figure4-1 Shows the flowchart for connecting cables to the SOFAR 3.3K~12KTL-X 4.2. Connecting PGND Cables Connect the SOFAR 3.3K~12KTL-X to the grounding electrode using protection ground (PGND) cables for grounding purposes. The inverter is transformerless, Requires The positive pole and the negativepole of the PV array are not grounded, Otherwise it will cause inverter failure, In the PV power generation system, all non...

  • Page 23: Connecting Ac Output Power Cables

    SOFAR 3.3K~12KTL-X User manual Figure4-2 Ground terminal composition 4.3. Connecting AC Output Power Cables Connect the SOFAR 3.3K~12KTL-X to the AC power distribution frame (PDF) or electrical grid using AC output power cables. It is not allowed for several inverters to use the same circuit breaker. It is not allowed to connect loads between inverter and circuit breaker.
  • Page 24 SOFAR 3.3K~12KTL-X User manual Multi core copper wire The cross-section of the AC line conductor must be sized in order to prevent unwanted disconnections of the inverter from the grid due to high impedance of the line that connects the inverter to the power supply point; In fact, if the impedance is too high, it causes an increase in the AC voltage that, on reaching the limit set by the country of installation, causes the inverter to switch off...

  • Page 25: Connecting Communications Cables

    SOFAR 3.3K~12KTL-X User manual Step 1 Remove the insulation layer of an appropriate length according to figure 4-3, then insert the AC output cable though the PG waterproof cable gland. Figure4-3 AC Output Cable schematic diagram Step 2 Connecting the AC output power cable: The AC output cable(R,S,T,N and PE) is connected to the terminal block, as shown in figure 4-4.
  • Page 26 SOFAR 3.3K~12KTL-X User manual the S phase CT S1 (red) received the meter position. 4, position. 6 S2 (black) received the meters, S1 (red) of CT connected with T is connected to electricity meter position. 7, S2 (black) is connected to electricity meter position. 9. NOTE: The direction of the current transformer is shown in fig.
  • Page 27 SOFAR 3.3K~12KTL-X User manual Refer to <6.3 Main interface in this manual for specific operation methods. Please Note: 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 28 SOFAR 3.3K~12KTL-X User manual 1.RS485 interface 2. WIFI interface Connecting RS485 Communications Cables By the RS485 communication line, connecting SOFAR 3.3K~12KTL-X to communication equipment (such as data acquisition, PC terminal). You are recommended to use 24 AWG outdoor shielded network cables with the internal resistance less than or equal to 1.5 ohms/10 m and external diameter of 4.5 mm to 7.5 mm as RS485 communications cables.
  • Page 29 SOFAR 3.3K~12KTL-X User manual shielded network cable using a wire stripper. Step 2 Open SOFAR 3.3K~12KTL-X lower cover and insert the shielded network cable into the cable screw nut, seals, screw nut. Step 3 Connect the stripped network cable to corresponding pins on the plug, as shown as follow.
  • Page 30 SOFAR 3.3K~12KTL-X User manual Communications Port Description This topic describes the functions of the RS485 and WIFI ports. RS485 By RS485 interface, transfer the inverter power output information, alarm information,operation state to the PC terminal or local data acquisition device , then uploaded to the server (such as TERMINAL). 1.
  • Page 31 SOFAR 3.3K~12KTL-X User manual According to the manufacturers to provide SN number can register remote monitoring of SOFAR 3.3K~12KTL-X on website. 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://www.yuque.com/books/share/dd0c8758-a99d-4284-b24f-afdb26d9f 0eb?#.

  • Page 32: Connecting Dc Input Power Cables

    SOFAR 3.3K~12KTL-X User manual Note: The length of the RS485 communication cable should be less than 1000 m.  The distance between WIFI and Ethernet router should be less than 100m.  If multiple SOFAR 3.3k~12KTL-X are connected to the monitoring device ...
  • Page 33 SOFAR 3.3K~12KTL-X User manual Connect the SOFAR 3.3K~12KTL-X to PV arrays over DC input power cables. Input mode selection：SOFAR 3.3K~12KTL-X has 2 MPPT, The two MPPT can run independently, but also can be operated in parallel, According to the system design, the user can choose the mode of MPPT operation.
  • Page 34 SOFAR 3.3K~12KTL-X User manual  PV modules generate electric energy when exposed to sunlight and can create an electrical shock hazard. Therefore, when connecting DC input power cable, cover PV modules by using opaque cloth.  Before performing electrical connections, ensure that voltages of the DC cables should be within the safe voltage range, that is, lower than 60 V DC, and the DC SWITCH is OFF.
  • Page 35 SOFAR 3.3K~12KTL-X User manual Figure 4-15 Negative connector composition 1. Housing 2. Cable gland 3. Negative connector Note Positive and negative metal terminals are packed with positive and negative connectors respectively. Separate the positive from negative metal terminals after unpacking the SOFAR 3.3K~12KTL-X to avoid confusing the polarities.
  • Page 36 SOFAR 3.3K~12KTL-X User manual Note L2 is 2 to 3 mm longer than L1. Step 3 Insert the positive and negative power cables into corresponding cable glands. Step 4 Insert the stripped positive and negative power cables into the positive and negative metal terminals respectively and crimp them using a clamping tool.

  • Page 37: Drms Functions

    SOFAR 3.3K~12KTL-X User manual wrench with an appropriate strength, as shown in Figure 4-18. Before removing the positive and negative connectors, ensure that the DC SWITCH is OFF. Caution Figure 4-19 Removing a DC input connector 4.6. DRMs Functions 4.6.1 3.3K~12KTL-X have five TTL input and one 5V Power output witch provided the DRMs function.

  • Page 38: Safety Check

    SOFAR 3.3K~12KTL-X User manual 2. Provided the DC Power through the PV Pannel until the LCD is working; 3. Set inverter country code as 02(Australia) in Enter Setting>Set Country Code(password 0001)； 4. Enable DRMs function in Enter Setting>Logic Interface(password 0001); 5.
  • Page 39 SOFAR 3.3K~12KTL-X User manual Use the multimeter to check the DC side voltage and current; Check the DC cable， Note the positive and negative poles cannot be reversed, Consistent with the positive and negative pole of photovoltaic array, measured each input Open circuit voltage Compare the voltage, if the difference is greater than 3%, PV array line may be a fault SOFAR 3.3K~12KTL-X AC connect...
  • Page 40 SOFAR 3.3K~12KTL-X User manual state of fault protection. When Hard anti reflux control is enabled, a loss of communication with the meter will cause the inverter to enter into a fault protection state. - 35 - All rights reserved Shenzhen SOFARSOLAR Co ., Ltd. ©...

  • Page 41: Commissioning Of Inverter

    SOFAR 3.3K~12KTL-X User manual 5. Commissioning of inverter 5.1. Safety inspection before commissioning Ensure that DC and AC voltages are within the range permitted by the inverter. Attention 5.2. Start inverter Step 1 Turn on DC switch. Step 2 Turn on AC switch. When the solar arrays generate adequate power, the inverter will startup automatically.

  • Page 42: Operation Interface

    SOFAR 3.3K~12KTL-X User manual 6. Operation interface 6.1. Operation and Display Panel Buttons and Indicator lights Key-button: Back : to back up or enter into main interface at standard interface states. : to move up or increase value. Down : to move down or decrease value. Enter : to confirm selection.

  • Page 43: Standard Interface

    SOFAR 3.3K~12KTL-X User manual 6.2. Standard Interface LCD standard interface is used to display inverter states、information and parameter setting etc. LCD displays the updates of inverter energy、power、input information、 warning information etc. - 38 - All rights reserved Shenzhen SOFARSOLAR Co ., Ltd. ©...
  • Page 44 SOFAR 3.3K~12KTL-X User manual When power-on, LCD interface displays INITIALIZING, refer below picture. Initializing when control board successfully connected with communication board, the LCD display the current state of the inverter，display as shown in the figure below. Wait 10s Waiting States，Countdown 10S Check Checking Normal...

  • Page 45: Main Interface

    SOFAR 3.3K~12KTL-X User manual Fault Regular error state Permanent Unrecoverable error state Inverter states includes: wait、check、normal、fault and permanent Wait ： Inverter is waiting to Check State at the end of reconnection time. In this state, the PV voltage is more than 180V, grid voltage value is between the max and min limits and so on;...
  • Page 46 SOFAR 3.3K~12KTL-X User manual 2. Clear Energy 15. Set Reactive 3. Clear Events 16. Set PowerDerat 4. Set Country Code 17. PE Line Control 5. On-Off Control 18. Set RefluxP 6. Enset Country Code 19.MPPT Scan 7. Set Energy 20.Set ElecMeter 8.
  • Page 47 SOFAR 3.3K~12KTL-X User manual Users press"Back"button to enter"1.Enter Setting"interface, Press"OK"button to enter main setting interface.Enter"3. Clear Events"by pressing"Up"button or"Down"button. Press"OK"button and start to clear events."success" is displayed after settings. Set Country Code  This menu is where you can select the country grid parameters,alternatively you can use the mobile APP.
  • Page 48 SOFAR 3.3K~12KTL-X User manual France Slovakia ZSD AU-QLD Poland CEI0-21 In Areti AU-VAR Germany BDEW Ukraine AUSGRID Germany VDE Brazil Horizon 0126 Italy CE10-16 Mexico UK.G83 FAR Arrete23 Greece island Denmark Tr322 Wide-Range-60 EU EN50438 IEC EN61727 Ireland 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)
  • Page 49 SOFAR 3.3K~12KTL-X User manual (F<) value Trip delay time Maximum disconnection time Over- Protective frequency 1 function limit 52Hz 52Hz 55Hz 55Hz (F>) value Trip delay time Maximum disconnection 0.2s 0.2s 0.2s 0.2s time Default volt-watt settings for different regions are shown in the following table: Region Default value Voltage...
  • Page 50 SOFAR 3.3K~12KTL-X User manual Inverter on-off local control. Users press ''Back'' button to enter ''1.Enter Setting'' interface,Press ''OK'' button to enter main setting interface.Enter ''5.On-Off Control'' by pressing ''UP'' button or ''Down'' button.Press ''OK'' button and enter On-Off Control interface,press ''OK'' button and enter ' ' Input Password'' Setting interface. Press '' OK'' button to set passwords (default:0001),increase or decrease value though pressing ''Up'' button or ''Down'' button,press ''OK'' button to next value setting.''Error! Try again'' will be displayed for wrong...
  • Page 51 SOFAR 3.3K~12KTL-X User manual Users press "Back"button to enter"1.Enter Setting" interface, Press"OK"button to enter main setting interface.Enter " 7.Set Energy " by pressing " Up"button or"Down"button, press "OK"button and enter"Input Password"Setting interface. Press"Back"button to set passwords (default: 0001), increase or decrease value though pressing"Up"button or"Down"button, press""OK"button to next value setting."Error! Try again"will be displayed for wrong passwords.
  • Page 52 SOFAR 3.3K~12KTL-X User manual press “OK” button. “Success” or “fail” is displayed after setting. Set StartPara  User can change the start parameter by the LCD. First the User need to copy the. TXT file which is used to change the start parameter to the SD card .
  • Page 53 SOFAR 3.3K~12KTL-X User manual “Down” button, press “OK” button to next value setting. “Error!” Try again” will be displayed for wrong passwords. Press “Back” button and rekey in the correct passwords. “Success” will be displayed if setting successfully. Set Insulation ...
  • Page 54 SOFAR 3.3K~12KTL-X User manual to next value setting. “Error! Try again” will be displayed for wrong passwords. Press “Back” button and rekey in the correct passwords. “success” will be displayed if setting successfully. PE Line Control  Users can choose whether to enable PE Line Control Users press Back button to enter "1.Enter Setting"...
  • Page 55 SOFAR 3.3K~12KTL-X User manual “OK” **** Input 0001 0001 “OK” Anti Reflux Control Hard Anti Reflux Control *.**KW Input allowable export “OK” Enable “OK” power Anti Reflux Control Disable *.**KW Input allowable export “OK” Enable “OK” Hard Anti Reflux power Control Disable Press “Up”...
  • Page 56 SOFAR 3.3K~12KTL-X User manual Press"OK"button to enter mainl setting interface.Enter" 20.Set ElecMeter" by pressing" Up"button or"Down"button, press"OK" button and enter"Input Password"Setting interface.
 Press"Back"button to set passwords(default: 0001),increase or decrease value though pressing"Up"button or"Down"button, press"OK"button to next value setting."Error! Try again"will be displayed for wrong passwords.Press"Back"button and rekey in the correct passwords."success"...
  • Page 57 SOFAR 3.3K~12KTL-X User manual Step 2: Press “Confirm” button (the rightmost button) to enter the “Enter Setting” menu interface. Step 3: Press “Down” button several times until “Autotest Fast” is shown on the screen. Step 4:Press “Confirm” button to start Auto Test: 19.AutoTest Fast Step 5:Then the Auto Test will start automatically, Press “down”...
  • Page 58 SOFAR 3.3K~12KTL-X User manual 27.S1:230V 384ms ↓ Wait for another test Testing 27.S2 ↓ Wait Test 27.S2 OK! Press “Down button” ↓ to see the test results 27.S2:230V 188ms ↓ Wait for another test Testing 81>S1... ↓ Wait Test 81<S1 OK! Press “Down button”...
  • Page 59 SOFAR 3.3K~12KTL-X User manual Auto Test OK! Autotest STD  The test procedure is same as Autotest Fast, but it’s much more time consuming. Step 1: During the normal operation of our SOLAR inverters, press “back” button (the leftmost button) to enter the main menu interface.
  • Page 60 SOFAR 3.3K~12KTL-X User manual to see the test results 59.S2:230V 100ms ↓ Wait for another test Testing 27.S1... ↓ Wait Test 27.S1 OK! Press “Down button” ↓ to see the test results 27.S1:230V 384ms ↓ Wait for another test Testing 27.S2 ↓...
  • Page 61 SOFAR 3.3K~12KTL-X User manual ↓ Wait for another test Testing 81<S2... ↓ Wait Test 81<S2 OK! ↓ Press “Down button” to see the test results 81<S2:50.0Hz82ms ↓ Auto Test OK! Logic interface  Enable or disable the logic interfaces, please refer to section 4.6 DRMs Functions for details.
  • Page 62 SOFAR 3.3K~12KTL-X User manual (C) “SystemInfo” Interface as below: 3.SystemInfo 1.Inverter Type 8.Power Factor 2.Serial Number 9.Reflux 3.SoftVersion 10.MPPT Scan 4.HardVersion 11.LoadUseTotal 5.Country 12.Comm Protocol 6.Input Mode 13.Service Code 7.Safety Paras Inverter Type  Users press Back button and Up button or Down button enter “3. SystemInfo”...
  • Page 63 SOFAR 3.3K~12KTL-X User manual Users press “Back” button and “Up” button or “Down” button to enter “3. SystemInfo” interface, then Press “OK” button to enter enter into system information checking interface,then press “Up” button or “Down” button enter into “5. Country”,then press “OK” button ，the Country will be displayed.
  • Page 64 SOFAR 3.3K~12KTL-X User manual will be displayed. LoadUseTotal  Users press “Back” button and “Up” button or “Down” button to enter “3. SystemInfo” interface, then Press “OK” button to enter enter into system information checking interface,then press “Up” button or “Down” button enter into “11.LoadUseTotal”,then press “OK”...
  • Page 65 Step 3 The SD card reader must be ready by the users, so that SD card so easy to establish the connection with the computer. Step 4 SOFAR SOLAR will send the Software code to the user who needs to update. After user receive the file, please decompressing file and cover the original file in SD card.

  • Page 66: Trouble Shooting And Maintenance

    SOFAR 3.3K~12KTL-X User manual 7. Trouble shooting and maintenance 7.1. Trouble shooting This section contains information and procedures for solving possible problems with the SOFAR 3.3K~12KTL-X inverter. In case of problem with inverter, check the following tips. Check the warning fault messages or Fault codes on the inverter ...
  • Page 67 SOFAR 3.3K~12KTL-X User manual and AC wiring is correct, while the alarm occurs The power grid repeatedly, contact SOFAR technical support to change the frequency is grid over-voltage, under-voltage, over-frequency, ID04 GridUFP too low under-frequency protection points after obtaining approval from the local electrical grid operator.
  • Page 68 SOFAR 3.3K~12KTL-X User manual circuit breaker and AC wiring of the SOFAR inverter. Ihe input current Check whether the input current is higher than the HwBoostO too h i g h , a n maximum input current of SOFAR inverters, then check ID14 d h a s h a p p the input wiring, if both are correct, please contact SOFAR...
  • Page 69 SOFAR 3.3K~12KTL-X User manual SOFAR inverter automatically returns to normal operating status after the solar irradiance returns to normal level. The bus ID26 BusOVP voltage Is too ID26-ID27 are internal faults of SOFAR inverter, turn OFF high the “DC switch”, wait for 5 minutes, then turn ON the “DC switch”.
  • Page 70 SOFAR 3.3K~12KTL-X User manual The DCI sampling value between the Consistent ID51 master DSP Fault_DCI and slave DSP is not consistent The GFCI sampling value Consistent between the ID52 Fault_GFC master DSP and slave DSP is not consistent The spi communicatio SpiCommL n between the...
  • Page 71 SOFAR 3.3K~12KTL-X User manual The grid current Unrecover too h i g h , a n ID65 HwAcOCP d h a s c a u s e unrecoverable hardware fault The bus voltage is too Unrecover high, and has ID66 BusOVP cause unrecoverable...
  • Page 72 SOFAR 3.3K~12KTL-X User manual unrecoverable fault Unrecover The EEPROM ID75 WRITEEE PROM unrecoverable Unrecover The EEPROM ID76 READEEP unrecoverable Relay has Unrecover happen ID77 RelayFail permanent fault ID78- ID80 Reserved Reserved Reserved Ensure the installation position and installation method The inverter meet the requirements of Section 3.4 of this user manual.
  • Page 73 SOFAR 3.3K~12KTL-X User manual still exits after the replacement, please contact SOFAR technical support. Check whether the external fan with blue heat-shrink The fan5 is tubing is not working, if so, replace the fan, if the alarm ID87 Fan5 alarm fault still exits after the replacement, please contact SOFAR technical support.
  • Page 74 SOFAR 3.3K~12KTL-X User manual 7.2. Maintenance Inverters generally do not need any daily or routine maintenance. Cooling fan should not be blocked by dust or any other items. Inverter cleaning Please use hand blower, soft dry cloth or brush to clean inverters. Water, corrosive chemical substances or intense cleaning agent should not be used for cleaning the cooling fan or inverter.

  • Page 75: Decommissioning

    SOFAR 3.3K~12KTL-X User manual 8. Decommissioning 8.1. Decommissioning steps Switch off the AC grid  Switch Off the DC switch  Wait for 5 minutes  Release the DC connectors  Release the AC terminals using screw drivers.  8.2. Package If possible, please pack the inverter in the original packaging.

  • Page 76: Technical Data

    SOFAR 3.3K~12KTL-X User manual 9. Technical data 9.1. Input parameter (DC) Sofar * Sofar * Sofar Sofar Sofar Sofar Sofar Sofar Parameter KTL-X KTL-X KTL-X KTL-X KTL-X KTL-X KTL-X KTL-X (Australia) Max. input voltage 1000V Start-up input 200V voltage Number of independent MPPT Number of DC 1 for each MPPT...

  • Page 77: Output Parameter (Ac)

    SOFAR 3.3K~12KTL-X User manual 9.2. Output parameter (AC) Sofar * Sofar * Sofar Sofar Sofar Sofar Sofar Sofar Parameter KTL-X KTL-X KTL-X (Austral KTL-X KTL-X KTL-X KTL-X KTL-X Rated power 3000W 4000W 5000W 5000W 6000W 8000W 10000W 12000W Rated Apparent 3300VA 4400VA 5000VA 5500VA 6600VA 8800VA 11000VA 13200VA power Rated AC voltage...

  • Page 78: Efficiency, Safety And Protection

    SOFAR 3.3K~12KTL-X User manual 9.3. Efficiency, Safety and Protection Sofar * Sofar * Sofar Sofar Sofar Sofar Sofar Sofar Parameter KTL-X KTL-X KTL-X (Austral KTL-X KTL-X KTL-X KTL-X KTL-X Max efficiency 98.3% Weighted eff. 97.5% (EU/CEC) Self-consumption at <1W night Feed in start power MPPT efficiency >99.5%...

  • Page 79: General Data

    SOFAR 3.3K~12KTL-X User manual 9.4. General Data Sofar * Sofar * Sofar Sofar Sofar Sofar Sofar Sofar Parameter KTL-X KTL-X KTL-X KTL-X KTL-X KTL-X KTL-X KTL-X (Australia) -25℃~+60℃ Ambient temperature range （Outdoor unconditioned with solar effects） Allowable relative 0~100% no condensing humidity range Topology Non isolated...
  • Page 80 SOFAR 3.3K~12KTL-X User manual Environment Outside housing: Degree 3 pollution degree Inside housing: Degree 2 The models marked with“ *” should be available only for some designated countries. - 75 - All rights reserved Shenzhen SOFARSOLAR Co ., Ltd. ©...

  • Page 81: Quality Assurance

    SOFAR 3.3K~12KTL-X User manual 10. Quality Assurance 10.1. 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 82: Invalid Warranty Clause

    SOFAR 3.3K~12KTL-X User manual the extended warranty card to the customer to confirm the extended warranty period. 10.3. 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 83 Product Name: Solar Grid-tied Inverter 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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