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S h e n z h e n

S O FA R S O L A R

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Solar Grid-tied Inverter

Product Model

SOFAR 255KTL-HV

User manual

Содержание 250KTL-HV

Страница 1: ...Shenzhen SOFAR SOLAR Co Ltd Solar Grid tied Inverter Product Model SOFAR 255KTL HV User manual ...

Страница 2: ...llation 23 5 Electrical Connection 28 5 1 Electrical Connection 29 5 2 Terminal Connector 29 5 3 Grounding Connection PE 30 5 4 Connect grid side of inverter AC Output 31 5 4 2 Wiring Terminal and Precautions 32 5 5 Connect PV side of inverter DC Input 36 5 6 Communication Connection 39 6 Commissioning of inverter 41 6 1 Cable Connection Inspection 41 6 2 Start Inverter 41 7 Operation interface 42...

Страница 3: ...yone who operates the device at any time must operate in accordance with the requirements of this manual Copyright Declaration The copyright of this manual belongs to Shenzhen SOFARSOLAR Co Ltd Any corporation or individual should not plagiarize partially cope or fully copy including software etc not allow to duplication and publishment in any form and any way All rights reserved SOFARSOLAR reserv...

Страница 4: ... electricians 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 ...

Страница 5: ...re installing and adjusting the produce please read all of instructions cautions and warnings in this manual Before connecting the product to the electrical utility grid contact the local utility company for allowance Also this connection must be made only by qualified electrician If the failure persists please contact the nearest authorized maintenance center If you don t know which service cente...

Страница 6: ...ing symbol attache the product which contact information of safety operation The warming symbol must permanent attached to the product 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 ...

Страница 7: ...ed electrical engineer Must be trained Completely read the manual operation and understand all information Warming Must get permission by local utility company before connecting to grid and the connection must be done by certified electrical engineers Attention Operation Touching the utility grid or the terminal conductors can lead to lethal electric shock or fire Do not touch non insulated cable ...

Страница 8: ...munity to electromagnetic noise of external system Noise emission level influence of electromagnetic emission upon environment Electromagnetic radiation from inverter may be harmful to health Please do not continue to stay away from the inverter in less than 20cm when inverter is working Danger 1 2 Symbols and signs High voltage of inverter may be harmful to health Only certified engineer can oper...

Страница 9: ...oltage sources All work on the product must be carried out by qualified persons only Caution of hot surface The product can get hot during operation Avoid contact during operation Prior to performing any work on the product allow the product to cool down sufficiently Comply with the Conformite Euroeenne CE Certification The product comply with the CE Certification Grounding Terminal This symbol in...

Страница 10: ...verters the direct current of the PV array to the grid compliant three phase current and feeds into the utility grid Figures 2 1 PV Grid Tied System SOFAR 250 255KTL HV may only be operated with PV arrays photovoltaic module and cabling for on grid condition Do not use this product for any other or additional purposes Any damage or property loss due to any use of the product other than described i...

Страница 11: ...7 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 250 255KTL HV L W H 1100 5 713 5 368mm Figure 2 2 Product front view and left view dimensions ...

Страница 12: ...ment etc they must be cleaned regularly and kept visible at all times Figure 2 4 Product label 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 AC power is filtered through Outp...

Страница 13: ... Feed in management can be controlled directly by the grid company through a RS485 interface C Limited the active power fed into grid If enable the limited of active power function inverter can limit the amount of active power fed into the grid to the desired value expressed as percentage D Self power reduction when grid is over frequency If grid frequency is higher than the limited value inverter...

Страница 14: ...SOFAR 250 255KTL HV User Manual Copyright Shenzhen SOFARSOLAR Co Ltd 10 ...

Страница 15: ...SOFAR 250 255KTL HV User Manual Copyright Shenzhen SOFARSOLAR Co Ltd 11 Schematic diaram ...

Страница 16: ...SOFAR 250 255KTL HV User Manual Copyright Shenzhen SOFARSOLAR Co Ltd 12 2 4 Efficiency and derating curve ...

Страница 17: ...riginal package and leave desiccant inside sealed tight with taps Keep the storage temperature around 40 70 Relative humidity 0 95 no condensation Figure 3 1Storage temperature and humidity The maximum stacking layer number cannot exceed 4 layers If the inverter be storage for more than half years the inverter needs to be fully examined and tested by qualified service or technical personnel before...

Страница 18: ...ion Caution Consider the weight of this product when doing transport and moving Choose an appropriate mounting position and surface At least two persons for installation Attention 4 1 Installation Process 4 2 Checking Before Installation Checking Outer Packing Materials Before unpacking please check the condition of the outer package materials if any damaged found such as holes cracks please not u...

Страница 19: ... distributor immediately if anything missing or damage Table 4 1Components and mechanical parts that inside the package No Pictures Description Quantity 1 SOFAR 250 255KTL HV 1 pcs 2 Rear Panel 1 pcs 3 PV input connector 24 pcs 4 PV input connector 24 pcs 5 PV metal pin 24 pcs 6 PV metal pin 24 pcs 7 M10 90Hexagon screws 4 pcs ...

Страница 20: ... 11 Warranty Card 1 pcs 12 Outgoing inspection report 1 pcs 13 Quality Certificate 1 pcs 14 COM 16pin connector 1 pcs 15 M4X14 Cross round head triple set screw Only for DC switch lock 1 pcs 4 3 Tools Prepare tools required for installation and electrical connection as following table Table 4 2 Installation tools No Tool Description Function ...

Страница 21: ...nstalling AC power cable Use to remove AC connectors from the product 3 Removal Tool Remove PV Connector 4 Wire Stripper Used to peel cable 5 With an open end of larger than or greater than 32 mm Used to tighten expansion bolts 6 Rubber Mallet Used to hammer expansion bolts into holes 7 M6 M6 use to uninstall and install the front top cover and down cover 8 Torque wrench Connect AC connector ...

Страница 22: ... panel is properly installed 14 ESD gloves Installer wear when installing product 15 Safety goggles Installer wear when installing product 16 Mask Installer wear when installing product 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 t...

Страница 23: ...SOFAR 250 255KTL HV User Manual Copyright Shenzhen SOFARSOLAR Co Ltd 19 Figure 4 1 Installation Position Selection Figure 4 2 Clearance for single inverter ...

Страница 24: ...right Shenzhen SOFARSOLAR Co Ltd 20 Note Other requirement for install position Install position should obstruct the disconnect of power Place inverter in an appropriate bearing capacity objects Location should be avoid touch by children ...

Страница 25: ...ltiple inverters 4 5 Moving of inverter 4 5 1 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 Figure 4 4 Move inverter from package ...

Страница 26: ...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 Use auxiliary handle inside the package for moving the inverter After use keep it well for future usage Attention Figure 4 5 auxiliary handle position 4 5 2 Lifting Equipment 1 Tighten the screws of two M12 rings into the inverter sides according to the ins...

Страница 27: ...crash on wall or other objective Stop working in bad weather condition such as raining heavy fog winding Attention 4 6 Installation 4 6 1 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 positi...

Страница 28: ...to the hole Figure 4 9 Screws into the holes Step 3 Align the rear panel with the hole positions fix the rear panels on the wall by tightening the expansion bolt with the nuts Figure 4 10 Install rear panel Step 4 Lift the inverter and hang it on the rear panel and fixing both side of inverter with M6 screw accessories ...

Страница 29: ...ure 4 11 Fix inverter 4 6 2 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 12 Ensure hole position Step 2 Drilling hole by using Hammer Drill recommend to do a stain proofing ...

Страница 30: ...ling 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 Figure 4 14 Fix wall bracket Step 4 Lift the inverter and hang it on the wall bracket and fixing both side of inverter with M6 screw repeat 4 6 1step 4 ...

Страница 31: ...nual Copyright Shenzhen SOFARSOLAR Co Ltd 27 Note If height between ground and bracket is less than 1 3m use auxiliary handle for installation Otherwise use lifting equipment Figure 4 15 Installation position of auxiliary handle ...

Страница 32: ...ntion Before the electrical connection use opaque material to cover the PV modules or disconnect PV string DC switch PV arrays will produce dangerous voltage if it is exposure under sun Danger For this product the open circuit voltage of PV strings should not greater 1500V Note 5 1 Electrical Connection Introduce the electrical connection process 5 2 Terminal Port Introduce inverter terminal port ...

Страница 33: ...ter DC side safety connection and AC side safety connection 5 1 Electrical Connection Figure 5 1 Flowchart for connecting cables to the inverter 5 2 Terminal Connector Connector description as below Take picture as reference No Name Description A DC input terminals PVX PVX PV connector B USB WIFI port USB WIFI For WIFI GPRS Communication ...

Страница 34: ...singground cable SOFAR 250 255KTL HV 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 current carrying metal parts such as mounting frame combiner box enclosure etc should be connected to earthed Note Preparation prepare the grounding cable recommend 16mm yellow green ...

Страница 35: ...p the core wires completely The core wires shall contact the terminal closely 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 M8hexagon screw B grounding cable Figure 5 4 Inverter external grounding instruction diagram Note For improving anti corrosion performance after...

Страница 36: ... 5 4 1 Open the wiring box Note Forbid to open then main board cover of inverter Before open the wiring box please ensure there is not DC and AC connection If open the wiring box on snowing or raining day please take protective measures to avoid the snow and rain enter wiring box Otherwise should not open the wiring box Please do not unused screw in the wiring box Step 1 Use M6 driver to unscrew t...

Страница 37: ...onnect any loads between inverter and AC circuit breaker OT DT Requirement When use copper core cable please use copper terminal connector When use copper clad aluminum cable please use copper terminal connector When use aluminum core cable please use Copper and aluminum transition terminal connector or aluminum terminal connector Figure 5 6 OT DT Requirement for terminal connection ...

Страница 38: ...utdoor four core five core copper or aluminum wire Copper Wire 95 185 Aluminum Wire 120 240 PE Wire reference 5 3 Step 1 Open the cover refers to section 5 3 1 Step 2 Turn OFF the AC circuit breaker and secure against reconnection Step 3 Unscrew the nut of the AC terminal block and select the sealing ring according to the outer diameter of the cable Insert the nut sealing ring into the cable in se...

Страница 39: ...l Copyright Shenzhen SOFARSOLAR Co Ltd 35 Step 5 Crimp the terminal Step 5 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 ...

Страница 40: ...ncluding in the warranty case Ensure the maximum short circuit current of PV strings should less than the maximum inverter DC current input And three DC switch is in OFF position Otherwise it may cause high voltage and electric shock Ensure PV array have good insulation condition in any time Ensure same PV string should have the same structure including same model same number of panels same direct...

Страница 41: ...d 4 0 6 0 4 0 4 5 7 8 Step 1 Find the metal contact pins in the accessories bag connect the cable according below diagram 1 Positive cable 2 negative cable Figure 5 8 DC cable connection 1 Step 2 Crimp the PV metal contact pin to the striped cable using a proper crimping pliers Step 3 Insert wire into the connector cap nut and assemble into the back of male or female plug When you heard a click th...

Страница 42: ...hearing a slight sound indicated connection succeed Figure 5 9 DC cable connection Note Please use multimeter to make sure the PV array positive pole and negative pole Dealing If need to remove the PV connector from inverter side please use the Removal Tool as below diagram move the connector gently Before moving the positive and negative connector please make sure DC Switch is on OFF position NOT...

Страница 43: ...cted 5 6 1 USB WIFI Port Port Description USB WIFI port USB USB Port Use for updating the software WIFI WIFI Port Use for connect Wi Fi for data transmission Procedure 5 6 2 COM Multi function communication port Table 5 3 Recommend com cable size Name Type Outer diameter mm Area mm RS485 Communication Wire Outdoor shielded twisted pair meets local standards 3core 4 8 0 25 1 Port Description PIN De...

Страница 44: ...al 4 RS485B RS485 signal 5 Electric meter RS485A Electric meter RS485 signal Wire connection Electric meter 6 Electric meter RS485B Electric meter RS485 signal 7 GND S RS485 signal ground 8 DRM0 Remote shunt down DRMS port 9 DRM1 5 Reserve 10 DRM2 6 Reserve 11 DRM3 7 Reserve 12 DRM4 8 Reserve 13 GND S Communication Ground 14 16 Blank PIN N A N A Procedure ...

Страница 45: ...reaker When the DC power generated by the solar array is enough the SOFAR 250 255KTL HV inverter will start automatically Screen showing normal indicates correct operation NOTE 1 Choose the correct country code refer to section 7 3 of this manual NOTE 2 Different distribution network operators in different countries have different requirements regarding grid connections of PV grid connected invert...

Страница 46: ... HV 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 v Short press DOWN button go down v Long press DOWN button enter current interface Indicator Lights GFI Red light ON GFCI faulty Normal Green light flashing counting down or checking Normal Green light ON Normal Alarm Red light ON recoverable or u...

Страница 47: ...n connection PV input current and voltage grid voltage current and frequency today generation total generation Inverter working status PV 1 12 PV input voltage and current Inverter working status PV generated power Inverter working status today generated electricity Inverter working status total generated electricity Inverter working status grid voltage and current ...

Страница 48: ...e and frequency Inverter working status Wi Fi RS485 status Inverter faulty alarm When power turn on LCD interface displays Initializing refer below picture When control board successfully connected with communication board the LCD display the current state of the inverter display as shown in the figure below ...

Страница 49: ...ault State or Permanent State if any error or fault occurs Normal Inverter enter to Normal State it is feeding power to the grid inverter will go to Fault State or Permanent state if any error or fault occurs Fault Fault State Inverter has encountered recoverable error It should recover if the errors disappear If Fault State continues please check the inverter according error code Permanent Invert...

Страница 50: ...tting and long press to enter the setting menu You can select the content you want to set by short pressing the button Note1 Some settings need to enter the password the default password is 0001 when entering the password short press to change the number long press to confirm the current number and long press after entering the correct password If password error try again appears you will need to ...

Страница 51: ...r value allowed to be transmitted to the grid 11 Logic interface Enable or disable logical interfaces It is use for below standard Australia AS4777 Europe General 50549 German 4105 12 MPPT 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 B Event List Event List is used to display the...

Страница 52: ...nfo 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 C Software Update User can update software by USB flash drive SOFARSOLAR will provide the new update software called firmware for...

Страница 53: ...fer to operation interface of LCD Step 6 Input the password if password is correct and then begin the update process the original password is 0715 Step 7 System update main DSP slave DSP and ARM in turns If main DSP update success the LCD will display Update DSP1 Success otherwise display Update DSP1 Fail If slave DSP update success the LCD will display Update DSP2 Success otherwise display Update...

Страница 54: ...y for the particular installation This section contains the potential errors resolution steps and provide users with troubleshooting methods and tips The process to check the event list can refers to Manual Chapter 7 3 B Table 8 1 Even list Even List ID Event List Name Even List Description Solution ID01 GridOVP The power grid voltage is too high If the alarm occurs occasionally the possible cause...

Страница 55: ...ified If the fault occurs frequently and lasts a long time check whether the insulation resistance between the PV array and earth ground is too low then check the insulation conditions of PV cable ID06 OVRT OVRT faulty ID07 LVRT LVRT faulty ID08 IslandFault Islanding faulty ID09 GridOVPInstant1 Grid instantaneous voltage too high 1 ID10 GridOVPInstant2 Grid instantaneous voltage too high 2 ID11 VG...

Страница 56: ...17 ID24 are internal faults of inverter turn OFF the DC switch wait for 5 minutes then turn ON the DC switch Check whether the fault is rectified If no please contact technical support ID30 ConsistentFault_V grid The Grid voltage sampling value between the master and salve is not consistent ID31 ConsistentFault_D CI ID33 SpiCommFault D C SPI Communication Faulty DC side ID34 SpiCommFault A C SPI C...

Страница 57: ...limit If yes improve ventilation to decrease the temperature ID50 TempFault_HeatSi nk1 Heat sink1 over temperature protection ID51 TempFault_HeatSi nk2 Heat sink2 over temperature protection ID52 TempFault_HeatSi nk3 Heat sink3 over temperature protection ID53 TempFault_HeatSi nk4 Heat sink4 over temperature protection ID54 TempFault_HeatSi nk5 Heat sink5 over temperature protection ID55 TempFault...

Страница 58: ... ID70 Reserved ID71 BusOVP BUS overvoltage ID72 SwBusRmsOVP Inverter bus voltage overvoltage software ID73 SwBusInstantOVP Inverter bus voltage instantaneous value overvoltagesoftwar e ID81 Reserved ID82 DciOCP Dci overcuurent faulty ID83 SwOCPInstant Output instantaneous current protection ID83 are internal faults of inverter turn OFF the DC switch wait for 5 minutes then turn ON the DC switch Ch...

Страница 59: ...erTempDeratin g Overtemperature derating This faulty only cause alarm It will not directly cause the system to enter a fault state ID114 FreqDerating Frequency derating ID115 FreqLoading Frequency loading ID116 VoltDerating Voltage derating ID117 VoltLoading Volatge loading ID124 Reserved ID125 Reserved ID129 unrecoverHwAcO CP Output overcurrent hardwarepermanent fault ID129 ID141are internal faul...

Страница 60: ...anent fault ID141 unrecoverVbusUn balance Bus Unbalanced permanent fault ID142 unrecoverSpdFail DC Lightning protection permanent failure DC ID143 unrecoverSpdFail AC Lightning protection permanent failure AC ID145 USBFault USB fault ID146 WifiFault Wifi fault ID145 ID158are internal faults of inverter turn OFF the DC switch wait for 5 minutes then turn ON the DC switch Check whether the fault is ...

Страница 61: ...ws ID83 when remote derating If no one operate this function please check the connection I O according to chapter 4 5 ID166 LogicInterfaceDer ating Logical interface derating ID167 AlarmAntiRefluxi ng Anti Refluxing derating ID169 FanFault1 Fan 1 Alarm ID170 FanFault2 Fan 2 Alarm ID171 FanFault3 Fan 3 Alarm ID172 FanFault4 Fan 4 Alarm ID173 FanFault5 Fan 5 Alarm ID174 FanFault6 Fan 6 Alarm ID175 F...

Страница 62: ... clean the inverter with an air blower a dry soft cloth or a soft bristle brush Do NOT clean the inverter with water corrosive chemicals detergent etc Heat sink cleaning For the long term proper operation of inverters ensure there is enough space around the heat sink for ventilation check the heat sink for blockage dust snow etc and clean them if they exist Please clean the heat sink with an air b...

Страница 63: ...ght Shenzhen SOFARSOLAR Co Ltd 59 MPPT operating voltage range 500V 1500V Full power MPPT voltage range 800V 1300V Number of MPP trackers 12 Number for DC inputs 24 Max input current per MPPT 30A Max input short circuit current per MPPT 50A ...

Страница 64: ...Maximum apparent power 250kVA 30 C 235kVA 40 C 220kVA 50 C 255kVA 30 C 235kVA 40 C 220kVA 50 C Rated output current 162A 166A Max Output current 180 5A 184A Nominal grid voltage 3W PE 800Vac Grid voltage range 640 920Vac Nominal frequency 50Hz 60Hz Grid frequency range 45 55Hz 55 65Hz Active power adjustable range 0 100 THDi 3 Power factor 1 default 0 8 0 8 adjustable ...

Страница 65: ... IEC60068 1 2 14 30 Grid standard AS NZS 4777 VDE V 0124 100 V 0126 1 1 VDE AR N 4105 CEI 0 21 CEI 0 16 UNE 206 007 1 EN50549 G99 EN50530 NB T32004 Protection Leakage current Anti islanding DC reverse polarity ZVRT AC and DC secondary lightning protection Ground fault monitoring Yes PV array string fault monitoring Yes Zero voltage ride through Yes Anti PID function Optional AFCI protection Option...

Страница 66: ...t temperature range 30 60 Relative humidity 0 100 DC Switch Yes Cooling Smart forced air cooling Max altitude 5000m 4000m derating Mounting Wall mount Communication WiFi GPRS RS485 PLC Bluetooth optional Display LCD Bluetooth APP Self consumption at night 2W Degree of protection IP66 Dimension 1100 5 713 5 368mm Weight 99 3kg Warranty 5 years 7 years 10 years ...

Страница 67: ...n the first date of arrival Customers can apply to buy extended warranty products from the company s sales team by providing the product serial number Our company may refuse to do not conform to the time limit extended warranty purchase application Customers can buy an extended warranty of 5 10 15 years If the customer wants to apply for the extended warranty service please contact the sales team ...

Страница 68: ...ing and use methods 6 Failure to comply with safety regulations certification standards etc 7 Damage caused by improper storage by dealers or end users 8 Transportation damage including scratches caused by internal packaging during transportation Please claim directly from the transportation company or insurance company as soon as possible and obtain damage identification such as container package...

Страница 69: ...ADD 401 Building 4 AnTongDa Industrial Park District 68 XingDong Community XinAn Street BaoAn District Shenzhen GuangDong P R China Email service sofarsolar com Tel 0510 6690 2300 Web www sofarsolar com ...

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