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If the PE cable is an independent single-core cable, it is inserted into the cabinet
through the standby grounding terminal.

Step 10

Install the protection cover

-- -- E

5.7

DC Cable Connection

Electric shock!

The PV array will generate lethal high voltage once exposed to sunlight.

User Manual

5 Electrical Connection

Содержание SG250HX-IN-20

Страница 1: ...I In nv ve er rt te er rU Us se er r M Ma an nu ua allS SG G2 25 50 0H HX X I IN N 2 20 0 U UE EN N V Ve er r3 31 1 2 20 02 21 10 01 1 SG250HX IN 20 UEN Ver31 202101 SG250HX IN 20 P PV V G Gr riid d C...

Страница 2: ......

Страница 3: ...by their respective owners S So of ft tw wa ar re e L Liic ce en ns se es s It is prohibited to use data contained in firmware or software developed by SUNGROW in part or in full for commercial purpos...

Страница 4: ...ll Read the manual and other related documents before performing any work on the inverter is carried out Documents must be stored carefully and be available at all times The contents of the manual wil...

Страница 5: ...a an na at tiio on n Indicates a situation that if not avoided could result in equipment or property damage Indicates additional information emphasized contents or tips that may be helpful e g to help...

Страница 6: ......

Страница 7: ...ator Panel 7 2 2 5 DC Switch 7 2 3 Circuit Diagram 8 2 4 Function Description 8 3 Unpacking and Storage 10 3 1 Unpacking and Inspection 10 3 2 Identifying the Inverter 10 3 3 Scope of Delivery 12 3 4...

Страница 8: ...5 5 Opening the Wiring Compartment 30 5 6 AC Cable Connection 31 5 6 1 AC Side Requirements 31 5 6 2 Requirements for OT DT Terminal 33 5 6 3 Aluminium Cable Requirements 34 5 6 4 Connection Procedur...

Страница 9: ...ords 65 7 7 2 Power Yields Records 66 7 7 3 Event Records 67 7 8 More 67 7 8 1 Parameter Setting 68 7 8 2 75 7 8 3 Password Changing 76 8 System Decommissioning 77 8 1 Disconnecting the Inverter 77 8...

Страница 10: ......

Страница 11: ...cover all the precautions that should be followed Perform operations considering actual onsite conditions SUNGROW shall not be held liable for any damage caused by violation of the safety instruction...

Страница 12: ...minate the operating license Risk of inverter damage or personal injury Do not pull out the PV connectors when the inverter is running Wait at least 5 minutes for the internal capacitors to discharge...

Страница 13: ...ltages Only qualified personnel can open and service the inverter Disconnect the inverter from all the external power sources before service Do not touch live parts until 5 minutes after disconnection...

Страница 14: ...ure 2 1 Inverter application in PV power system F Fiig gu ur re e 2 2 1 1 Inverter application in PV power system Inverter cannot connect the PV strings whose positive and negative terminals need to b...

Страница 15: ...ription is as follows M Mo od de ell N No om miin na all O Ou ut tp pu ut t P Po ow we er r N No om miin na all G Gr riid d V Vo ollt ta ag ge e SG250HX IN 20 250 kVA 30 220 KVA 50 3 PE 800 V The devi...

Страница 16: ...4 Bottom handles 2 used to move the inverter 5 Side handles 2 used to move the inverter 6 Mounting ears 4 used to hang the inverter onto the mounting bracket 7 Wiring area DC switches AC terminals DC...

Страница 17: ...No system fault occurs Slow flash Period 2s The device is in standby or startup state not feeding power into the grid Red ON A fault occurs and the device cannot connect to the grid Twinkling The Blue...

Страница 18: ...provides various settable parameters Users can set parameters via the App to meet the requirements and optimize the performance C Co om mm mu un niic ca at tiio on n iin nt te er rf fa ac ce e The in...

Страница 19: ...e rises the potential between the negative pole of the PV array and the ground to a positive value to suppress the PID effect Make sure the inverter is applied to an IT system before enabling the anti...

Страница 20: ...cking list Contact SUNGROW or the supplier in case there is any damage or incompleteness Do not dispose of the original packing case It is recommended to store the inverter in it 3 2 Identifying the I...

Страница 21: ...conformity 4 Company name website and country of manufacture Table 3 1 Description of Icons on the Nameplate I Ic co on n D De es sc cr riip pt tiio on n Do not dispose of the inverter together with...

Страница 22: ...wo M4 10 two M6 65 and two M6 12 hex socket screws c The two OT terminals are used for wiring power cable of the tracking system where the wiring range is 4 6mm2 d The documents include the quick inst...

Страница 23: ...t be always between 0 and 95 non condensing In case of stacking storage the number of stacking layers should never exceed the limit marked on the outer side of the packing case The packing case should...

Страница 24: ...rious wounds or bruise System performance loss due to poor ventilation Keep the heat sinks uncovered to ensure heat dissipation performance 4 2 Location Requirements Select an optimal mounting locatio...

Страница 25: ...ntilated Ensure air circulation The inverter is installed more than 30m away from third party wireless communication facilities and living environment 4 2 2 Carrier Requirements The installation carri...

Страница 26: ...bracket or wall before maintaining fans In case of multiple inverters reserve specific clearance between the inverters In case of back to back installation reserve specific clearance between the two...

Страница 27: ...the following recommended ones If necessary use other auxiliary tools on site Table 4 1 Tool specification N No o S Sp pe ec ciif fiic ca at tiio on n T Ty yp pe e a M2 M6 b M4 M6 M8 c Drill bit 12 14...

Страница 28: ...ars and base of the inverter Step 2 Lift and move the inverter to the destination by using the side and bottom handles as well as the four installed handles Step 3 Remove the screw in handles and reas...

Страница 29: ...when the inverter is 100mm above the ground Continue hoisting the device to the destination after ensuring the safety Step 4 Remove the lifting rings and reassemble the sealing screws released in Ste...

Страница 30: ...on n Phillips screwdriver electric screw driver M4 M6 Marker Level Hammer drill Drill bit 12 Socket wrench Including 16mm socket wrench Opening 16mm S Sp pa ar re e p pa ar rt ts s I It te em m Q Qu u...

Страница 31: ...o on n A Mounting bracket B Full threaded bolt M10 45 C Metal bracket D Flat washer E Spring washer F Hex nuts M10 Step 4 Take out the inverter from the packing case Step 5 Hoist the inverter to the i...

Страница 32: ...driver M4 M6 Marker Level Hammer drill Drill bit Select according to expansion bolt specifications Socket wrench Including 16mm socket Wrench Opening 16mm S Sp pa ar re e p pa ar rt ts s I It te em m...

Страница 33: ...mark the positions for drilling holes on the installation site Step 3 Insert the expansion bolts into the holes and secure them with a rubber hammer Fasten the nut with a wrench to expand the bolt Rem...

Страница 34: ...Take out the inverter from the packing case Step 6 Hoist the inverter to the installation position when necessary refer to 4 4 2 Hoisting Transport If the installation position is not high enough skip...

Страница 35: ...tion Ensure that all cables are voltage free before performing cable connection Any improper operations during cable connection can cause device damage or personal injury Only qualified personnel can...

Страница 36: ...munication digital input output DI DO and power supply of tracking system COM2 COM3 COM4 COM5 Reserved C AC wiring terminal AC Used for AC output cable connection D Standby grounding terminal Used for...

Страница 37: ...ic ca at tiio on n C Ca ab blle e D Diia am me et te er r m mm m C Cr ro os ss s s se ec ct tiio on na all a ar re ea a m mm m2 2 1 DC cable PV cable complying with 1 500V standard 4 7 6 4 4 6 2 Addit...

Страница 38: ...uirements 4 Commun ication cable Shielded twisted pair 4 5 18 1 1 5 A copper to aluminum adapter terminal is required when an aluminum cable is used For details refer to 5 6 3 Aluminium Cable Requirem...

Страница 39: ...nor the positive pole of the PV string can be grounded Otherwise the inverter will not operate normally It is recommended that connect the additional grounding terminal and the PE terminal of the AC...

Страница 40: ...En nd d The grounding screws have been anchored to the side of the inverter before delivery and do not need to be prepared There are two grounding terminals Use at least one of them to ground the inve...

Страница 41: ...e Requirements Before connecting the inverter to the grid ensure the grid voltage and frequency comply with requirements for which refer to 10 1 Technical Data Otherwise contact the electric power com...

Страница 42: ...nverter When the transformer is connected to to the IT grid to ground withstanding voltage of the LV winding of the transformer the AC cables and the secondary equipment including the relay protection...

Страница 43: ...connected in the 3 1 manner as shown in the figure below The Min continuous operating voltages of M1 M4 are 690VAC The LV side winding of the transformer AC cables and secondary devices including pro...

Страница 44: ...will cause electrochemical corrosion and impair the reliability of electrical connection 5 6 4 Connection Procedure In this manual description is given by using four core cable as an example The wiri...

Страница 45: ...and insulation layer by specific length as described in the figure below Step 6 If wiring of tracking system power cable is required refer to 5 8 Wiring of Tracking System Power Cable Optional Otherwi...

Страница 46: ...phase wire is connected to the PE terminal or N terminal unrecoverable damage may be caused to the inverter Ensure that the depth L of the socket used is not less than 28mm Step 9 Gently pull the cabl...

Страница 47: ...s inserted into the cabinet through the standby grounding terminal Step 10Install the protection cover E En nd d 5 7 DC Cable Connection Electric shock The PV array will generate lethal high voltage o...

Страница 48: ...ure the maximum short circuit current on the DC side is within the permissible range 5 7 1 PV Input Configuration As shown in the figure below the inverter is provided with multiple PV inputs PV input...

Страница 49: ...gu ur re e 5 5 4 4 Y Terminal Y Terminal Inline Fuse Inline Fuse Connector Physical Drawing Pictures are for Reference Only Y Y T Te er rm miin na all a an nd d I In nlliin ne e F Fu us se e A Ap pp p...

Страница 50: ...le use Y branch connector with 20A fuse and the material number is B Q 002568 When Y branch connector is used for wiring all connectors must be matched by the same manufacturer and different manufactu...

Страница 51: ...s within the scope of delivery Damage to the device due to the use of incompatible terminal shall not be covered by the warranty PV connector can be purchased according to the following recommended mo...

Страница 52: ...the insulator C Cr ro os ss s s se ec ct tiio on na all a ar re ea a m mm m2 2 T Tiig gh ht te en niin ng g t to or rq qu ue e N N m m 4 4 0 6 3 5 Step 5 Check for polarity correctness The inverter w...

Страница 53: ...until there is an audible click Check the positive and negative polarity of the PV strings and connect the PV connectors to corresponding terminals only after ensuring polarity correctness Arc or cont...

Страница 54: ...the wiring compartment according to Step 1 to Step 4 described in 5 6 4 Connection Procedure Step 2 Loosen the swivel nut of the communication terminal and select an appropriate seal according to cabl...

Страница 55: ...er by specific length as described in the figure below Step 5 Install the OT terminal and press it tight Step 6 Stack the OT terminals on the OT DT terminal of the AC cables and fix the cables to corr...

Страница 56: ...on the OT DT terminals of the AC cable Otherwise it will cause over heat or even burn Step 7 Gently pull the cable backwards to ensure firm connection and fasten the swivel nut clockwise Step 8 Insta...

Страница 57: ...trol cabinet Length of the cable connecting the internal wiring terminal of the inverter and the fuse should be less than 2 5m 5 9 RS485 Communication 5 9 1 Interface Description The following figure...

Страница 58: ...UT RS485B differential signal Table 5 5 RS485_2 port terminal definition N No o D De ef fiin niit tiio on n B2 RS485 B OUT RS485B differential signal A2 RS485 A OUT RS485A differential signal B2 RS485...

Страница 59: ...nner The communication cable of the tracking system can be connected to the port RS485_2 of any inverter in the daisy chain When more than 15 inverters are connected on the same daisy chain configure...

Страница 60: ...ocedure Terminal Block RS485 communication cables should be shielded twisted pair cables or shielded twisted pair Ethernet cables There are four RS485 communication terminals COM1 COM2 COM3and COM4 on...

Страница 61: ...4 Insert the terminal base into the corresponding terminal Step 5 Pull the cable gently to make sure it is secured tighten the swivel nut clockwise E En nd d 5 10 PLC Communication Connection With a P...

Страница 62: ...Connection Dry contact cables require a cross section of 1 mm2 to 1 5 mm2 The connection procedure of the dry contact is the same as that of the RS485 terminal block 5 11 1 Dry Contact Function The co...

Страница 63: ...re em me en nt ts s D DC C S Siid de e R Re eq qu uiir re em me en nt ts s Max voltage 250Vac Max current 5A Max voltage 30Vdc Max current 5A D DI I t te er rm miin na all e em me er rg ge en nc cy y...

Страница 64: ...efer to the wiring of terminal block described in chapter 5 9 3 Connection Procedure Terminal Block 5 12 Closing the Wiring Compartment Step 1 Release the limit lever Step 2 Close the wiring compartme...

Страница 65: ...55 E En nd d User Manual 5 Electrical Connection...

Страница 66: ...inverter are properly sealed Warning signs labels are suitably affixed and durable 6 2 Commissioning Procedure If all of the items mentioned above meet the requirements proceed as follows to start up...

Страница 67: ...rter This manual describes only how to achieve near end maintenance via the Bluetooth connection For remote maintenance through the Eye or WiFi refer to the related manuals in the delivery scope Scree...

Страница 68: ...structions in between The Bluetooth function of the mobile phone is enabled 7 4 2 Login Steps Step 1 Open the App to enter the login page click on Local Access at the bottom of the page to go to the n...

Страница 69: ...ecurity To set inverter parameters related to grid protection and grid support contact SUNGROW to obtain the advanced account and corresponding password Step 4 If the inverter is not initialized you w...

Страница 70: ...k whose grid code complies with EN50549 select the parameter EN50549_1 LV grid connection or EN50549_2 MV grid connection In the Brazilian region set the country code to Brazil Selecting Brazil_230 or...

Страница 71: ...PID function state 4 Power flow chart Display the PV power generation power feed in power etc The line with an arrow indicates energy flow between connected devices and the arrow pointing indicates en...

Страница 72: ...g running The inverter runs according to the scheduling instructions received from the monitoring background Fault If a fault occurs inverter will automatically stop operation and disconnect the AC re...

Страница 73: ...es sc cr riip pt tiio on n PV Information String n Voltage The input voltage of the nth string String n current The input current of the nth string Inverter Information Total On grid Running Time Dail...

Страница 74: ...ly Yield Monthly Yield Annual Yield Total Active Power Current active power value of the inverter Total Reactive Power Current reactive power value of the inverter Total Apparent Power Current apparen...

Страница 75: ...view fault and alarm records as shown in the following figure F Fiig gu ur re e 7 7 8 8 Fault and alarm records Click to select a time segment and view corresponding records The inverter can record u...

Страница 76: ...D De es sc cr riip pt tiio on n Power curve Show the power output from 5 am to 11 pm in a single day Each point in the curve is the percentage of present power and nominal power Daily energy histogram...

Страница 77: ...ve Swipe left to check the power yields histogram 7 7 3 Event Records Click to view event record list Click to select a time segment and view corresponding event records The inverter can at most recor...

Страница 78: ...s System Parameters Tap to enter the system parameter screen on which boot shutdown instruction can be sent to the inverter set the date and time and information such as ARM sorftware version and MDSP...

Страница 79: ...shown in the following Figure F Fiig gu ur re e 7 7 1 15 5 Running Time PID Parameters Tap to enter PID Parameters screen on which PID recovery function can be enabled or disabled and PID alarm and PI...

Страница 80: ...ing Figure F Fiig gu ur re e 7 7 1 18 8 Power Regulation Parameters Table 7 6 Active power regulation P Pa ar ra am me et te er r D De ef fiin niit tiio on n S Se et tt tiin ng g d de es sc cr riip pt...

Страница 81: ...determine whether the inverter is in stop state when the limited power reaches 0 Enable Disable Table 7 7 Reactive power regulation P Pa ar ra am me et te er r D De ef fiin niit tiio on n S Se et tt...

Страница 82: ...Active Overload Rate 1000 QP_EnterVoltage 100 0 110 0 QP_ExitVoltage 90 0 100 0 QP_EXitPower 1 0 20 0 QP_EnableMode Yes No Q U Curve Selection of Q U curve Curve A Curve B Curve C QU_V1 Pre set grid v...

Страница 83: ...rid voltage U4 that is reactive according to the grid voltage 100 0 120 0 QU_Q4 Pre set proportion of reactive power according to the grid voltage U4 0 60 0 Overload Rate 1000 QU_EnterPower Pre set ac...

Страница 84: ...nication Parameters screen on which the user can set the deivice address of inverter as shown in the following Figure F Fiig gu ur re e 7 7 2 21 1 Communication Parameters Inappropriate parameter sett...

Страница 85: ...F Fiig gu ur re e 7 7 2 22 2 Firmware Download Step 3 Select the firmware from the file list and download Tap D Do ow wn nllo oa ad de ed d to view successfully downloaded firmware package F Fiig gu...

Страница 86: ...En nd d 7 8 3 Password Changing Tap to enter the modify password screen as shown in the following figure F Fiig gu ur re e 7 7 2 25 5 Change password The password shall consisit of 8 20 digits includi...

Страница 87: ...force to remove the DC connector Step 6 Ensure that the AC wiring terminals are voltage free via a multimeter and remove the AC wires and communication wires Step 7 Install the PV terminal waterproof...

Страница 88: ...ter Some parts and devices of the inverter such as the capacitors may cause environmental pollution Do not dispose of the product together with household waste but in accordance with the disposal regu...

Страница 89: ...al If the fault occurs repeatedly 1 Measure the actual grid voltage and contact the local electric power company for solutions if the grid voltage is higher than the set value 2 Check whether the prot...

Страница 90: ...ntact SUNGROW 005 Grid low voltage The grid voltage is lower than the set protection value Generally the inverter will be reconnected to the grid after the grid returns to normal If the fault occurs r...

Страница 91: ...is lower than the lower limit of the inverter 010 Grid power outage AC switch or circuit is disconnected Generally the inverter will be reconnected to the grid after the grid returns to normal If the...

Страница 92: ...for solutions if the grid parameter exceeds the set value 2 If the fault is not caused by the foregoing reasons and still exists contact SUNGROW 014 10 minute grid overvoltage the grid voltage exceed...

Страница 93: ...ge of the local power company modify the grid voltage imbalance parameter through the App or LCD screen 3 If the fault is not caused by the foregoing reasons and still exists contact SUNGROW 019 020 D...

Страница 94: ...s 038 Device anomaly Wait for the inverter to return to normal Disconnect the AC and DC switches and reconnect the AC and DC switches 15 minutes later to restart the inverter If the fault still exists...

Страница 95: ...fault still exists contact SUNGROW 047 PV input configuration abnormal PV input mode error Stop and disconnect the inverter Reset the input mode of the PV array 048 050 053 056 059 060 Device anomaly...

Страница 96: ...so remove the corresponding abnormity 2 If the fault is not caused by the foregoing reasons and still exists contact SUNGROW 088 Electric arc fault 1 Disconnect the DC inputs and check whether DC cabl...

Страница 97: ...fault still exists contact SUNGROW 220 227 PVx abnormal 1 Check if the xth PV string needs to be connected If not ignore the alarm and If so check the connection status and make sure it is connected r...

Страница 98: ...oing reasons and still exists contact SUNGROW The code 548 to code 563 are corresponding to string 1 to string 16 respectively 564 571 String x reverse connection alarm 1 Check whether the correspondi...

Страница 99: ...Verify that there is no voltage or current before pulling any connector Keep non related persons away A temporary warning sign or barrier must be posted to keep non related persons away while performi...

Страница 100: ...le entry is insufficiently sealed or the gap is excessively large and reseal the entry when necessary Once a year Electrical Connection Check whether all cable are firmly in place Check whether a cabl...

Страница 101: ...during operation If the fans do not operate normally the inverter may not be cooled down and inverter efficiency may decrease Therefore it is necessary to clean the dirty fans and replace the broken...

Страница 102: ...cuum cleaner and replace them when necessary Step 5 Follow the steps above to remove the fan on the other side of the inverter Step 6 Reinstall the fan back to the inverter in reverse order and restar...

Страница 103: ...PV input current 30 A 12 Max current for input connector 30A Max DC Short circuit current 50 A 12 Max inverter backfeed current to the array 0A O Ou ut tp pu ut t A AC C AC output power 250 kVA 30 22...

Страница 104: ...C Type II G Ge en ne er ra all D Da at ta a Dimensions W H D 1051 660 363 mm Weight 99kg Isolation method Transformerless Degree of protection IP66 Night power consumption 2 W Operating ambient temper...

Страница 105: ...respondence between number of inverters and maximum wiring distance N Nu um mb be er r o of f iin nv ve er rt te er r M Ma ax xiim mu um m w wiir riin ng g d diis st ta an nc ce e u un niit t m m 1 16...

Страница 106: ...on the product shall be undamaged and legible Otherwise SUNGROW has the right to refuse to honor the quality guarantee C Co on nd diit tiio on ns s After replacement unqualified products shall be pro...

Страница 107: ...r com A Au us st tr ra alliia a Sungrow Australia Group Pty Ltd Sydney 61 2 9922 1522 service sungrowpower com au B Br ra az ziill Sungrow Do Brasil Sao Paulo 55 11 2366 1957 latam service sa sungrowp...

Страница 108: ...05 22 04 service sungrow emea com R Ro om ma an niia a Service Partner Elerex 40 241762250 service sungrow emea com T Tu ur rk ke ey y Sungrow Deutschland GmbH Turkey Istanbul 90 216 663 61 80 service...

Страница 109: ...Technology Industrial Development Zone 230088 Hefei P R China Tel 86 551 6532 7834 6532 7845 Web www sungrowpower com E mail info sungrow cn Sungrow Power Supply Co Ltd Specifications are subject to c...

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