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SG20KTL User Manual-EN

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1. Parameters SGTOKTL SG12KTL SG15KTL SG20KTL s i wer 14 4A 17 3A 21 7A 29A output current namna PA 3 N PE 230V 400V voltage AC voltage range Ae TSONA 9 g May vary as per corresponding country s grid standard Nominal grid 50Hz 60Hz frequency Grid frequency 47 53Hz 57 63Hz range May vary as per corresponding country s grid standard THD lt 3 Nominal power a Cn lt 0 5 In InJection Powertactor gt 0 99 default value at nominal power adj 0 8 overexcited 0 8 underexcited Protection Anti islanding Yes protection LVRT Yes AC short circuit Yes protection Leakage current Yes protection DC switch Integrated DC fuse No Co sss Varistors protection System Max efficiency 98 0 Max European efficiency 97 2 97 2 97 3 97 3 Isolation method Transformerless Ingress protection rating IP65 Night power consumption lt 1W Operating ambient temperature range 25 C 60 C gt 45 C derating Allowable relative humidity range 0 100 Cooling method Smart forced air cooling Max operating altitude 4000m gt 3000m derating Display Graphic LCD 86 SUNGROW Parameters SG10KTL SG12KTL SG15KTL SG20KTL Communication RS485 RJ45 connector CE DE0126 1 1 EN62109 1 EN62109 2 EN62109 1 EN62109 2 EN61000 6 2 G59 2 CEI 02
2. j y Fr SSS SSeS lt A gt E 6 T1x26 2 Fa Y YY m 440 gt Fig 5 1 Dimensions of Backplate unit mm There are two sets of stainless fasteners supplied to attach the backplate to concrete wall and metal frame SUNGROW 23 5 Installing Inverter onto Wall User Manual gt 65 gt a 15 gt 45 TUC N Fig 5 3 Dimensions of Fastener Set for Metal Frame unit mm 5 3 1 Installing the Inverter on Concrete Wall Step 1 Remove backplate and fasteners from the packaging Step 2 Place the backplate onto the chosen concrete wall and adjust it until it is in a horizontal position Step 3 Mark the positions to drill holes using the backplate as the template Step 4 Drill holes according to the marks made before DANGER In order to avoid electrical shock or other injury inspect existing electronic or plumbing installations before drilling holes Mark positions Drill holes e Step 5 Attach the backplate to the wall firmly with the supplied expansion bolt set The torque for fastening the nut is 35 N m Install Backplate Fig 5 4 Fasten the Backplate against Concrete Wall with M10 80 Expansion Bolt Set 24 SUNGROW User Manual 5 Installing Inverter onto Wall Step 6 Lift up the inverter above the backplate with the help of others and then slide down making sure t
3. 6 2 1 I tenged Usad ens uQ D u a au u a akawa awha 6 22 Product DESGHIDUIOM uuu uu uu as y maa sisa 7 22 1 PrOGUCT A PDE ALAINGE u u L u l A devin q a aS aS 7 2 2 2 Dimensions and Weight of Inverter 8 2 2 3 ECDTDISpiay Panels Ak Sua nk meee 8 224 DG SWIC Sales u uuu ua aspas ls lt 9 235 lechnicaPDSsSCtiptiSk u ku u a O u Y Qa bau 10 2 3 1 Principle Deseripti6oiyuy uya s asss eee 10 2 3 2 Functions D eserlptiitu uy u l i A SS hasa 11 P SS DENO eean aaa TESS BEES ab ecu tected E SEERE EEN EPE PIERRE 12 Installation Flow 14 Unpacking and Storage 16 4 1 Unpacking ANd InSBeCtI lu u i wA AS a W wQ 16 42 dentityi g IDVerlel uy su m a 17 43 Deliveryyyconteitsuu u yuy uyapay 18 44 Storage oflnverter 19 Installing Inverter onto Wall 20 5 1 Selecting Installation Location 20 52 Moving Inverter to Installation Site 23 53 Mou itingthelnvaerteru y uu y Su usay 23 5 3 1 Installing the Inverter on Concrete WaIl 2
4. Grounding of Inverter AC Side Fig 6 3 Grounding for Inverter 6 5 2 Second Protective Earth Terminals The inverters are equipped with second protective earth terminals as specified in EN 50178 Second PE Terminals There are two second PE terminals on both sides of the inverter Users may choose one of them for PE connection SUNGROW 43 6 Electrical Connection User Manual Fig 6 4 Second PE Terminals Second PE Connection Item Description Remark A Screw M4x 12mm B Lock washer C Washer D Cable socket E Yellow green cable 6mm 9AWG Fig 6 5 Connection of the Second PE Connection The connection parts are not included in the delivery scope 6 6 Communication Connection 6 6 1 Communication Overview The inverter operation information can be transferred via its integrated RS485 interface to a PC with monitoring software such as Solarlnfo Insight or to data logging device such as Solarlnfo Logger RS485 is the standard communication choice for inverter RS485 terminals on the bottom of the inverter are RJ45 sockets First prepare 44 SUNGROW User Manual 6 Electrical Connection communication cable and RJ45 plug may not supplied with inverter Meanwhile there are waterproof communication connectors supplied in the scope of delivery to guarantee inverter protection degree Lighting protection is recommended to the communication cables when installing this device in thunde
5. 78 10 13 PV Configuration Mode Setting 78 10 14 Special Settings for Italy 79 10 14 1 Over frequency Derating Setting for Italy 79 10 14 2 Reactive Power Regulation for Italy 80 10 14 3 Protective Parameters Setting for Italy 82 TI APDDOWdIX ua ans aakiasssssaphakaqaastsosssi s OD Tiel Technica Data umu yy m Su u uu eel ian 85 11 2 Terminals and Cables 87 Td EXCISION of ERB EN y k u y u u eN 88 Fa 2 0707 Ul DS u T Saa Puya terete ern rt ete 89 VI 1 Safety Instructions IMPORTANT SAFETY INSTRUCTIONS The SG10KTL SG12KTL SG15KTL and SG20KTL have been designed and tested strictly according to the international safety regulations As electrical and electronic equipment safety instructions related to them must be complied with during installation commissioning operation and maintenance Incorrect operation or work may result in damage to Thelife and well being of the operator or a third party Theinverter and other properties that belong to the operator or a third party Therefore the following general safety instructions m
6. 10 Operation of LCD Display Panel 10 1 Description of Button Function Inverter offers two buttons for the user to look up the running information and configure parameters settings The two buttons have multiple functions Please refer to Tab 10 1before any operation onto inverter Tab 10 1 Button Function Button Operation Description Xe Press less than two seconds Move upwards or downwards or increase setting value Hereafter it is referred to as Press Y Press more than two seconds Return to the previous menu or cancel the command Hereafter it is referred to as Press ESC or Press less than two seconds Move left or right or turn pages Hereafter it is referred to as Press gt Press more than two seconds Enter into the sub screen or confirm the command Hereafter it is referred to as Press ENTER 62 The background illumination of the LCD screen will go out to save power if there is no button operation for one minute Reactivate it by pressing any button SUNGROW 10 Operation of LCD Display Panel User Manual Inverter Menu Structure 10 2 131N3 100 ss ppy a 989999 PJOMSSed wesed wo apow BrTjJuo5 Ad 1 470 t M31N3 IS O NW O ld O N O pou BT4U0d Ad wesed Wwo sr u9 OT Y9 O yq O ag O 2 lt STE wesed oid ZJO MW O IV O Sd O wesed uny l
7. Reactor i i 1 Filter LL3 a U ot eea sn FS YI SE N O DC MPPT2 GE PE E Sie Boost 5 o ilter Q wi 4 po KE l SHE DC 2 Auxiliary TZ Power DSP CPLD ss Giguere Fig 2 5 Main Circuit Diagram of Inverter 10 SUNGROW User Manual 2 Product Introduction 2 3 2 Functions Description Inverter functions can be grouped as the following Conversion function Inverter converts the direct current power into alternating current power which conforms to the grid requirement of its installation country Data storage and display Inverter stores essential data including running information and fault records and displays them on integrated LCD display Parameters configuration Inverter provides various parameters configuration for optimal operation Communication interface Standard RS485 interface for connecting other monitoring devices into the PV system is included Protection functions include Short circuit protection Insulation resistance to ground surveillance Inverter output voltage surveillance Inverter output frequency surveillance Residual current protection DC component of AC output current surveillance Anti islanding phenomena protection Ambient temperature surveillance DC over voltage protection Over current protection Power module over temperature protection SUNGROW 11 2 Product Introduction User Ma
8. Pro stage I Proe param single the following sub menu will come up p Max V grid 253 0V Press Y to select parameter Press gt to move cursor Min V grid 195 5V right and Press Y to set the appropriate value Max F grid 51 50Hz Confirm settings by Pressing ENTER Min F grid 47 50Hz Tab 10 12 Stage I Protective Parameter Explanation Parameter Explanation Parameter Explanation Max V grid Grid over voltage value Max Fgrid Grid over frequency value Min V grid Grid under voltage value Min F grid Grid under frequency value IT Stage II Protective Parameter differ from that in other menus The button functions for Italy Stage LI parameter setting sub menus may Proceed as follows to perform the parameter settinos Switching Mode Editing Mode N a Shortly press Q to navigate gt Shortly press gt Shortly press to add one step value Long press to turn page Long press orQ Shortly press to decrease one step value A S Max V prote Min V prote Select Pro stage HM and Press Y to p I Max V rete 000 0V p I Min V rete 000 0V enter into the sub menus i I Max V tempo 00 00s EN I Min V tempo 00 00s Press v to navigate the cursor Press gt II Max V rete 000 0V II Min V rete 000 0V to enter into the editing mode then the II Max V tempo 00 00s II Min V tempo 00 00s selected parameter will be shaded Press Y to
9. SUNGROW i B GRID CONNECTED INVERTER Type SG15KTL Is 100923001 DC4nput I min MPP voltage 380V I max MPP voltage 800V max Input voltage 1000V max Input current 2 20A 2 Isc PV 2 25A eo Mm L AC Outpui Rated output power 15000W Rated output voltage 3 N PE 230V 400V Rated output frequency 50Hz Max Output current 24A Safety Class I Enclosure IP65 Ambient temperature 25 C 60 C uOvervoltage Category TII MAINS II PV Il E 3 x ce N 136 e L Grid Monitoring VDE 0126 1 4_ _ _ _ SUNGROW POWER SUPPLY CO LTD 4 WWW SUNGROWPOWER COM MADE IN CHINA Fig 4 2 Nameplate of Inverter Image shown here is indicative only Actual product you receive may differ Item Description 1 SUNGROW logo and product type 2 Technical data of inverter 3 Marks of certification institutions of inverter 4 Company name website and origin Tab 4 1 Description of Icons on the Nameplate Description C tick mark of conformity The inverter is in compliance with directives of c tick Don t dispose of the inverter with the household waste Refer to the corresponding instructions TUV mark of conformity The inverter is in compliance with directives of TUV CE mark of conformity The inverter is in compliance with directives of CE SUNGROW 17 4 Unpacking and Storage 4 3 Delivery Contents yC lt 9 S Fig 4 3 Delivery Contents User Ma
10. Under frequency protection I Min F rete Stage I Grid under frequency f lt I Min F tempo Stage I Grid under frequency f lt tripping time LI Min F rete Stage I Grid under frequency f lt lt LI Min F tempo Stage II Grid under frequency f lt lt tripping time 84 SUNGROW 11 Appendix 11 1 Parameters Technical Data SG10KTL SG12KTL SG15KTL SG20KTL Input Side Data Max PV input power DC1 DC2 10800W 5400W 5400W 12800W 6400W 6400W 15800W 7900W 7900W 21000W 10500W 10500W Max PV voltage input 1000V Startup voltage 270V 270V 270V 300V Nominal input voltage 620V MPP voltage range 250 950V 250 950V 250 950V 280 950V MPP voltage range for nominal power 250 800V 330 800V 380 800V 480 800V No of MPPTs Max number of PV strings per MPPT DC1 DC2 3 3 Max PV current DC1 DC2 input 40A 20A 20A 40A 40A 20A 20A 20A 20A 42A 21A 21A Max current for input connector 12A Short circuit current of PV input DC1 DC2 50A 25A 25A Output Side Data Nominal AC output power 10000W 12000W 15000W 20000W Max AC output apparent power 11100VA 13300VA 16700VA 22200VA AC reactive Max output current 15 2A 18 2A 22 7A 33A SUNGROW 85
11. is inverter output active power P W 00000W S Va is inverter output apparent power mpm 0080VA Country is inverter selected country code Grid code is inverter selected grid code ai Grid code LV Vac is phase voltage i T lac is phase current Vac V 000 0 000 0 000 0 Pac is AC output of each phase F is frequency of each phase ee Nuca eee ee Pac W 0000 0000 0000 F Hz 00 00 00 00 00 00 CO2 reduce indicates total CO2 emission reduction C02 reduce BESBERS due to the inverter wm eon E month is the energy generation in this month leas kaa h Total is the total running hours of the inverter R itl T today is today running time of the inverter ze Temp is the internal temperature of the inverter 66 SUNGROW User Manual NOTICE 10 Operation of LCD Display Panel The energy yields displayed by the LCD panel are indicative only For the actual yields please refer to the electric energy meter 10 6 History Records 10 6 1 Running Information Records Main Screen Press ENTER Menu Press v His record Press ENTER Run record Press ENTER On the Run record display press Y to select the date you want to view Confirm by pressing ENTER Inverter shows historical running information pages Scroll pages by pressing Y Change to the next record by pressing gt 10 6 2 Fault Records P 1 2 Run reocrd
12. Prevent from touching device hot parts such as heat sink during operation Only LCD display panel and DC switch can be touched during inverter operation SUNGROW 3 1 Safety Instructions User Manual Maintenance and Service Ay DANGER There is a risk of inverter damage or personnel injury due to incorrect service work Always keep in mind that the inverter is power supplied by dual power source PV arrays and utility grid Before any service work you should obey the following procedures Disconnect inverter from the utility grid side first and then PV arrays Wait at least ten minutes until the inner capacitors discharge completely Verify that no voltage and current present with appropriate testing device Keep unrelated person away A temporary warning sign and barrier must be posted to keep non related person away for any period while performing electrical connection and service work NOTICE Any malfunction that may impair the inverter safety functions must be repaired immediately before the inverter is restarted again Inverter contains no owner serviceable parts inside Please contact local authorized personnel if any service work is required Servicing of the device in accordance with the manual should never be undertaken in the absence of proper tools test equipment or more recent revision of the manual which is clearly and thoroughly understood 4 SUNGROW User Manual 1 Safety I
13. 0 Q P The PF changes with the output power of the inverter Q U The reactive power changes with the grid voltage Pf Mode The reactive power can be regulated by the parameter PF on the Run param screen Qt Mode The reactive power can be regulated by the parameter Q Var limits in on the Run param screen Off Mode The PF is limited to 1 000 and the Q Var limit is limited to 0 0 Q P Mode when the country selection is not IT The PF changes with the inverter output power Run param Q P If the country selection is not IT Italy after selecting Q P Mode Press Y to enter the p Upper PF Cap 1 000 Run param Q P sub menu Lower Power 050 0 For each item setting Press gt to move cursor right Lower PF Ind 0 900 and Press Y to set the appropriate value Confirm Upper Poner ionok settings by Press ENTER Tab 10 5 Q P Mode Parameters Explanation Parameter Explanation Default Range Upper PF Cap Power factor of point P1 in the Q P mode 1 0 9 1 curve Lower Output power of point P1 in the Q P 50 0 50 Power mode curve in Lower PF Ind ren factor of point P2 in the Q P mode 0 9 0 9 1 72 SUNGROW User Manual 10 Operation of LCD Display Panel Parameter Explanation Default Range Upper Output power of point P2 in the Q P 100 50 100 Power mode curve in Lower Power lt Upper Power General Q P Curve Default Q P C
14. 7 1 Inspection before Commissioning 48 7 2 Commissioning Procedure 48 Disconnecting Dismantling and Disposing the Inverter 51 8 1 DISCONNECTING ThE nVert eruy y saa aS aQ hiss 51 8 2 Dismantling the Inverter 52 8 3 Disposing the Inverter 52 Troubleshooting and Maintenance 53 o MWo bleshogligu yuyu u N 53 9 1 1 Troubleshooting of LED Indicator 53 9 1 2 Troubleshooting of Faults in LCD Screen 54 9 2 Malmt naNtE u u u am D haapa kaka aaa ats 58 9 2 Routine Mai tenanceu uY UI ua arraian 58 9 2 2 Maintenance MSU ctio Nainiai 58 93 Contact Sungrow Service 61 Operation of LCD Display Panel 62 10 1 Description of Button Function 62 10 2 Inverter Menu StrUCtUure eseeseesesseseeseesessesseseessesseseeseesossossesecsseseesoesessessessese 63 TOS MAISE SI u l a ha Das Qasa ua aaa y
15. Q U Mode 10 14 3 Protective Parameters Setting for Italy User Manual If the Countries selection is IT Italy the protective parameters settings procedures are shown below After Grid codes selection you may enter into the Pro param sub menu Press Y to select parameter Press gt to move cursor right and Press Y to set the appropriate value Confirm settings by pressing ENTER Tab 10 11 Italy Grid protection Recovery Value Parameter Explanation IT Italy Pro param gt Pro Stage Fmax recover Fmin recover Vmax recover Vmin recover 11 50 10Hz 49 90Hz 253 00V 195 5V Inverter can start operating only when the grid frequency is below Fmax Fmax recovery recover The fault recovery value when the grid over frequency occurs Inverter can start operating only when the grid frequency is above Fmin recover Fminrecovery The fault recovery value when the grid under frequency occurs Inverter can start operating only when the grid voltage is below Vmax recover Vmax recover The fault recovery value when the grid over voltage occurs Inverter can start operating only when the grid voltage is above Vmin Vmin recover recover The fault recovery value when the grid under voltage occurs 82 SUNGROW User Manual 10 Operation of LCD Display Panel IT Stage Protective Parameter If the selected protective parameter is
16. Solarlnfo Logger PC Shielding layer is grounded green ATE ees I E EE ae i eee ee ee Ta sS eee ed Multiple inverters in daisy chain Fig 6 7 Multiple Inverters Communication with Other Devices 6 6 3 RS485 Communication Connection Step 1 Insert the RJ45 plug into the front plug connector until it makes a clicking sound install the plastic rings then tighten the cable gland with appropriate torque Step 2 Insert connector of one cable end into RS485 in RS485 out terminal on the bottom of the inverter Make connector and RS485 terminal engage and rotate clockwise Step 3 According to the position of the inverter repeat step 1 2 to connect the other Ethernet cables to the RS485 in RS485 out Ethernet cables with RJ45 plugs can be directly used to connect between the inverters and form a communication daisy chain Step 4 Pull cables outwards to confirm whether they are fastened firmly Step 5 As for the wires which connect to the terminating resistor or logging devices use the Ethernet wire stripper to strip the insulation layer and connect the RS485 A and B cables 6 and 3 to terminating resistor or data logging device or RS 485 232 converter 46 SUNGROW User Manual 6 Electrical Connection RJ45 plug 18 RJ45 Port Corresponding Relationship Between 8 Cables and Pins Pin 1 White orange Pin 2 Orange Pin 3 White green Pin 4 Blue Pin 5 White blue Pin 6 Green Pin 7 White br
17. a human computer interaction interface LCD display panel comprises LED indicators buttons and LCD display screen on the front panel of the inverter LEDs indicate the working status of the inverter The current running information shown on the LCD display Malfunction records shown on the LCD display Inverter configuration by pressing the buttons 3 1 eo Fig 2 4 LCD Display Panel No Name Description LED RUN and FAULT Inverter current state can be known from indicators the two indicators Detailed definition is shown in Tab 2 1 Navigate in the LCD menu select values and so on Detailed 2 B n SKER n function is shown in Tab 10 1 3 LCD LCD screen can display current state of inverter current running screen information history information and parameters to be set 8 SUNGROW User Manual 2 Product Introduction Tab 2 1 Description of LED Indicator LED State Description RUN R Inverter is feeding AC power to the utility grid FAULT off i RUN off A malfunction happens FAULT on or protection function triggers RUN off Inverter is not energized FAULT off There is a communication error between DSP and LCD 2 2 4 DC Switch DC switch is designed for safely disconnecting the DC current if required The inverter works automatically when input and output meet the requirements If you want to interru
18. confirm the choice s RE Stop gt Stop Press ENTER to confirm Confirm start the Confirm stop the inverter inverter 10 8 Input Parameter Settings Password The parameter settings are protected by the password If you want to set the inverter s parameters you have to input the correct password Step 1 Press ENTER to enter into Menu screen Step 2 Press Y to move the cursor to Set param menu item and confirm by pressing ENTER Step3 A password confirmation screen will occur set paran Press gt to move cursor right and Press Y to input the password 111111 Password 111111 Step 4 Press ENTER to confirm the password and enter gt the Set param sub menu gt Sys param Run param Pro param Com param PV config mode 68 SUNGROW User Manual 10 Operation of LCD Display Panel 10 9 System Parameters Setting 10 9 1 Language Setting The inverter supports five languages English German French Chinese and Italian Language can be configured as the following indication Main Screen Press ENTER Menu screen Press Yx3 Set param Press ENTER Enter password Press ENTER Sys param Press ENTER Language Press ENTER Press Y to select language as you prefer and confirm it by ee er nglis pressing ENTER O Deutsch O Francaise O Italia O Px 10 9 2 Time Setting If there is deviation between the time on inverter main screen and your
19. contact inversion circuit I Sungrow Service Dept There is a fault with PV1 boost 045 TRR ASK 1 Wait a moment for inverter recovery a 2 If the fault occurs repeatedly contact There is a fault with PV2 boost i P Y 046 PoE Sungrow Service Dept circuit The PV configuration mode set 1 Disconnect inverter on the display is not in 2 Re select PV configuration mode and 047 accordance with the re connect PV strings For more detailed configuration in the connection information please refer to 6 4 cabinet Connecting Inverter to PV Arrays Phase R current sampling 048 channel fault PRES u SB N 1 Wait a moment for inverter recovery 049 PINI 2 If the fault occurs repeatedly contact channel fault I Sungrow Service Dept Phase T current sampling 050 channel fault 1 Wait a moment for inverter recovery Hardware Overvoltage 051 j 2 If the fault occurs repeatedly contact Overcurrent protection I Sungrow Service Dept Disconnect inverter and remove the 070 Fans are defective broken fan It is n r repl he AC SPD 071 Fault with AC SPD t is necessary to eplace the AC S Contact Sunorow Service Dept I It is n r replace the DC SPD 072 Faultwith DC SPD REDEN S Contact Sungrow Service Dept Disconnect inverter and replace the 073 Fuse has blown out SP fuses Contact Sungrow Service Dept A fault has occurred in the internal communication of the inverter 074 Communication fault of LCD However the inver
20. fans are cleaned every six months Step 1 Disconnect the output and input side Step 2 Wait for at least ten minutes Step 3 Dismantle the inverter in the reversed direction of Installation procedure Step 4 Loosen the fixed screws on the back of the inverter Step 5 Clean the fan with soft brush or vacuum cleaner Step 6 Reinstall the inverter Step 7 Re connect the inverter Step 8 Restart the inverter 58 SUNGROW User Manual 9 Troubleshooting and Maintenance Replacement Fan If there is overheat and abnormal noise please replace the fan This task should be performed by technician A DANGER Disconnect the inverter from the grid first and then PV arrays before any maintenance work Lethal voltage still exists in the inverter Wait for at least ten minutes and then perform the maintenance work Fans maintenance work may only be performed by qualified electricians Step 1 Disconnect the AC side circuit breaker Step 2 Rotate DC switch to the OFF position and then turn off the upstream DC circuit break or pull off the MC4 terminal Sss 6 Step 3 Wait for at least ten minutes a _ Step 4 Disconnect all electrical connectors at the i bottom ka 5 Step 5 Lift up the inverter over the backplate with the help of others and then remove it from the wall Step 6 Place the inverter onto the platform Step 7 Loosen the four screws and disassemble the metal plate
21. settings i i i i O Independent mode PV configuration mode will be valid when the inverter is re energized again by rotating DC switch to the Parallel mode OFF position and then to the ON position The default configuration mode is independent mode 78 SUNGROW User Manual 10 Operation of LCD Display Panel 10 14 Special Settings for Italy If the Countries selection is IT Italy several LCD menus and operation methods are different from other countries The differences focus on Run param and Pro param as shown below 10 14 1 Over frequency Derating Setting for Italy If the Countries selection is IT Italy the Derating Slope will display in the Run param screen When the grid frequency is between 50 3Hz and 51 5Hz inverter will decrease power according to the Derating Slope Default derating slope Pm Hz Pm is the power before derating 83 33 Range 40 100 Note Derating Slope is the power derating slope Power derating slope 100 Grid frequency x Frequency derating slope Frequency derating slope range 2 5 Derating Slope 40 83 33 Default Fig 10 5 IT Over frequency Derating Curve SUNGROW 79 10 Operation of LCD Display Panel User Manual 10 14 2 Reactive Power Regulation for Italy Button Operation The button functions for Italy parameter setting sub menus may differ from that in other menus Proc
22. the operation of the unit 2 2 Product Description 2 2 1 Product Appearance Lm SS See Fig 2 2 Product Components Description Item Name Description 1 LCD display Inverter operation data viewing and parameters panel configuration can be performed via the LCD display panel The handles are designed for holding the unit when 2 Handles ware I ne transporting installing or servicing 3 Connection They are DC input terminals AC output terminal and RS485 terminals communication terminal 4 Air inlet Entrance of cool air 5 DC switch During normal operation it p in KER state It can shut down the inverter immediately in OFF position 6 Se Cord Second protective earth terminals as specified in EN 50178 terminals 7 Air outlet Exit of hot air during the inverter operation 8 Mounting ear Itis used for hanging inverter onto the backplate SUNGROW 2 Product Introduction User Manual 2 2 2 Dimensions and Weight of Inverter gt gt STOD ODDO DDDDDT IDE N i ke gt i Y CE Fig 2 3 Outline Dimensions of Inverter Type W mm H mm D mm Net weight kg SG10KTL SG12KTL SG15KTL 648 686 246 50 SG20KTL 648 686 246 55 2 2 3 LCD Display Panel As
23. to confirm the selection Single stage O Multi stage If the country selection is IT Italy the Pro param menu right will show refer to the 10 14 3 Protective Parameters Setting for Italy for detailed settings gt Pro Stage I Fmax recover 50 10Hz Fmin recover 49 90Hz Vmax recover 253 00V Vmin recover 195 5V Single stage Protective Parameters when the country selection is not IT Pro param single If the selected protective parameter type is Single stage the following sub menu will come up Press Y to select parameter Press gt to move cursor right and Press Y to set the appropriate value Confirm settings by Pressing ENTER gt Max V grid 276 0V Min V grid 184 0V Max F grid 51 50Hz Min F grid 49 80Hz Tab 10 7 Single stage Protective Parameters Explanation Parameter Explanation Max V grid Grid over voltage value Min V grid Grid under voltage value Max Fgrid Grid over frequency value Min F grid Grid under frequency value 76 SUNGROW User Manual 10 Operation of LCD Display Panel Multi stage Protective Parameters when the country selection is not IT If the selected protective parameter Mox Y prot MEN Vepro type is Multi stage the following gt I Max V grid 000 0V gt I Min V grid 000 0V sub menus will come up T Max V time 00 00s I Min V time 00 00s Press Y to select param
24. yields please refer to the electric energy meter Tab 10 2 Inverter State Description Inverter State Description After being energized the inverter tracks the PV arrays maximum Run power point MPP and feeds AC power to grid This mode is the normal mode Inverter will enter into Standby mode for insufficient input power promaey In this mode the inverter will wait until the DC voltage recovers Stop The inverter is shut down Key stop oo will stop operation by manual Stop through LCD Start The inverter is initializing and synchronizing with the grid Upd fail IAP update fails 64 SUNGROW User Manual 10 Operation of LCD Display Panel Inverter State Description If a fault occurs the inverter will automatically stop operation trigger the AC relay and show Fault on the LCD with the FAULT indicator lit Fault Once the fault is removed in recovery time set by user see 10 10 Running Parameter Setting the inverter will automatically resume running Warning Inverter has checked out some warning information If inverter is in Fault state Press gt Y to view multiple Current fault information pages To know the meaning of the fault code please refer to 9 1 2 Troubleshooting of Faults in LCD Screen Current fat PIi 2 _ Fault pages Fault Fault code Fault Fault Fault Warning Tab 10 3 Icon Description Icon De
25. 1 EN61000 6 3 VDE0126 1 1 CEI 021 AS NZS 3100 ERE NEO C10 C11 EN50160 RD1669 IEC61727 UTE C AS4777 2 ARN 15 712 1 EN50438 AS NZS3100 AS4777 2 AS47773 AS4777 3 G83 1 10K G59 2 12K 15K VDE AR N 4105 VDE AR N 41 05 BDEW CGC Solar BDEW CGC Solar Q GDW 617 Mechanical Data Dimensions WxHxD 648 x 686 x 246mm Mounting systerm Wall bracket Weight 50kg 50kg 50kg 55kg 11 2 Terminals and Cables i x Recommended Terminal Type Conductor size i conductor size 2 ALLUDA E 11awG gawG HAWG 4mm AC SG12KTL C16 L 4 837 11AWG 4mm terina SG15KTL 5 i 9AWG 6mm SG20KTL Wieland 10AWG 8AWG 8AWG RST5015 6 8 37 8 37mm2 MC4 DC terminals PV KST4 6II UR see 11AWG 4mm PV KBT4 6ll UR s P Comm RJ45 Twist pair type shielding Ethernet cable terminals Second PE terminal 10AWG 8AWG 6mm 2 9AWG 6mm SUNGROW 87 11 3 Exclusion of Liability The content of these documents is periodically checked and revised please contact us or check our website www sungrowpower com for the latest information Discrepancies cannot be excluded No guarantee is made for the completeness of these documents Please contact our company or distributors to get the latest version Guarantee or liability claims for damages of any kind are excluded if they are caused by one or more of the followings Inappropriate use or install of the product Installing or operating the product in an unintended environment Ignoring relevan
26. 1 Make sure all AC cables are firmly installed Connecting SG20KTL to AC Grid Step 1 Insert AC cables into cable gland and threaded sleeve into the strain relief housing Step 2 Strip off 11mm insulation layer from all AC cables Assemble crimp contacts to wires using crimp technology Step3 Fix all cables ends to the corresponding terminals with the torque of 2 7 N m according to markings on the connector especially the PE cable NOTICE Observe the AC terminal layout Device will not work normally if the phase cable is connected to the PE terminal SUNGROW 33 6 Electrical Connection User Manual Step 4 Latch the contact carrier Step 5 Fasten the contact carrier Step 6 Tighten the gland using the torque of 12 N m Step 7 Disconnect AC circuit breaker and prevent it from reconnecting accidently Step 8 Plug AC connector into corresponding AC terminal underneath the inverter And bayonet lock with integrated protection against accidental disconnect Step 9 Connect PE cable to the grounding electrode Where there are multiple inverters in the PV power system connect PE cables of all inverters and mounting frame of PV arrays to the same copper bus bar which may establish equipotential connection Step 10 Connect phase cables and N cable to the AC circuit breaker Step 11 Check whether cables are firmly secured N
27. 4 5 3 2 Installing the Inverter on Metal Frame 25 Electrical Connection suis tus q m tupas eee nee asia at a uu DE 6 1 Termi als DOS CIDE ON u u Ra Su a au wa u qasa 27 62 Simplified Electrical Connection Diagram 28 10 6 3 Connecting Inverter to AC Grid 30 6 3 1 AC Side Requirements anakina qasa ener 30 6 3 2 Connecting Inverter to AC Grid 32 64 Connecting Inverter to PV Arrays 35 6 4 1 PV inputs Configuration usasapa Nede 35 6 4 2 Assembling DC Cable to Connector 38 6 43 Wiring Proc ed reeu y u uy y k ass uawan a 39 6 5 Grounding The INVerte y uyu a aa u SSS 2aa 2232 42 6 5 1 GrOUNCING System OVERVIEW ca dunet a aT usaq 42 6 5 2 Second Protective Earth Terminals 43 660 COMMUNICATION CONNECUON sssaaa aa 44 6 6 1 Communication Overview 44 6 6 2 Communication Sy Ste Mose cat eine er a a sss 45 6 6 3 RS485 Communication Connection 46 COMMISSIONING anorani nanpa aB
28. C output power too high exceeds nominal power too much 2 Check whether fans work normally and whether there are some abnormal I I fans Please replace broken fan in The ambient temperature is too 037 hiah necessary g 3 Clean air grills of outlet 4 If the fault still exists please contact Sungrow Service Dept I 1 Wait a moment for inverter recovery The inverter has checked that y 038 I 2 If the fault occurs repeatedly contact there is a fault of relay Sungrow Service Dept 2 I 1 Wait a moment for inverter recovery The insulation resistance is low 039 2 If the fault occurs repeatedly contact ISO flt Sungrow Service Dept 1 Wait a moment for inverter recovery 040 IGBT saturation 2 If the fault occurs repeatedly contact Sungrow Service Dept TH Ate Saa Eau ah omnia 1 Wait a moment for inverter recovery 041 PINI 2 If the fault occurs repeatedly contact channel Sungrow Service Dept If the fault occurs repeatedly contact 042 Current imbalance I p y Sungrow Service Dept 043 The ambient temperature falls Disconnect inverter to stop Wait for 56 SUNGROW User Manual 9 Troubleshooting and Maintenance Fault Description Troubleshootin Code p 9 below 25 C ambient temperature to rise above 25 C and then start inverter again I I 1 Wait a moment for inverter recovery There is a fault with DC AC y 044 ss 2 If the fault occurs repeatedly
29. I O HJ O AG O g O wesed sAS lt sets Juno wesed J9S 00 00T 2do1s buTjesaq doas 0 00T S1YTUT1 M d age e SQEO uT1l J A02 Y oe wes lt soca swt Aqpueis lt Z Id wesed uny do1S 14e1S UOTSJ A JE MUH Td nej p peo 1l1nej p peog p4109 1 714 aN pe A64du3 g Lg DUT I31Nd pio5 1 uq lt sabenbue lt wesed S AS puodau STH wesed 3as do s 2e1S p4109 4 STH o u uny nu W Ya LNA 3S3 u 99 42S UTeW OE OT TE TO ptoz T 06 x W s o tt 8 ov 00926 E OT FOT Fig 10 1 Menu Tree English 63 SUNGROW 10 Operation of LCD Display Panel User Manual 10 3 Main Screen If the inverter succeeds in commissioning LCD display will enter into the main screen as shown in Fig 10 2 497600 kwh H6 8 14 20 t ge A 90 1 2014 01 31 10 30 Fig 10 2 Main Screen Description No Description Power curve x axis time in hours y axis output power yield P in Icons refer to the Tab 10 3 and the Inverter active power limits P W limits Current output power Energy generation during this day until now Total energy generation since initial commissioning Inverter state SON O OO N Date year month date and time NOTICE The energy yields displayed by the LCD panelare indicative only For the actual
30. Q U mode curve i SEERE U2 Limit Grid voltage limit in of point P3 in the 105 100 105 Q U mode curve Hysteresis Hysteresis voltage width in 3 0 5 U1 Limit Hysteresis lt U2 Limit Hysteresis Q Sn U2 Limit Upper U limit r gt Grid voltage Lower U limit U1 Limit Lower Q Sn Fig 10 4 Reactive Power Regulation Curve in Q U Mode 10 10 3 Save P Q set On the Save P Q set screen Press Y to move arrow Save P Q set to one item Press gt to move cursor right and Press Y to set Confirm by Pressing ENTER Save Q Var set Y N gt Save P W limits Y N Select Y to save up the values set when power down Select N to restore default values when power down 74 SUNGROW User Manual 10 Operation of LCD Display Panel 10 11 Protective Parameters Setting Protective parameters are designed for the limit value that can trigger the protective functions of the inverter Main Screen Press ENTER Menu screen Press Y x3 Set param Press ENTER Enter password Press ENTER Press Y x2 Pro param Press ENTER A password confirmation screen will occur Press gt to Pro param move cursor right and Press Y to input the password Please enquire Sungrow or your dealer for this password Password 000000 To make protective parameters setting convenient Inverter os provides country code selection The p
31. SUNGROW User Manual SG10KTL SG12KTL SG15KTL SG20KTL PV Grid Connected Inverter SG10_12_15_20KTLV41 UEN Ver30 201412 Version 3 0 About This Manual This manual is for the inverters SG10KTL SG12KTL SG15KTL and SG20KTL These inverters are grid connected transformer less robust and of high conversion efficiency The device will bring you profit from PV power system Aim The manual contains information about the inverter which will provide you guidelines to connect the inverter into the PV power system and how to operate the inverter Related Documents The manual cannot include complete information about the PV system You will get the additional information about other devices at www sungrowpower com or via webpage of device manufacturer Target Group The manual is targeted to technical personnel who is responsible for inverter installation and commissioning in the PV power system and inverter owner who will perform daily LCD operation How to Use This Manual Read the manual and other related documents before any work with the inverter Documents must be stored carefully and available at all times The contents of the manual will be periodically updated or revised due to product development It is probably that there are changes of manual in subsequent inverter edition The latest manual can be acquired via visiting the web page www sungrowpower com Symbols Explanation Important instructions cont
32. Start up inverter and configure corresponding parameters Section 7 2 10 Troubleshooting Section 9 1 SUNGROW 15 4 Unpacking and Storage 4 1 Unpacking and Inspection The unit is thoroughly tested and strictly inspected before delivery Damage may stilloccur during shipping Check the packing for any visible damage upon receiving Check the inner contents for damage after unpacking Checkthe completeness of delivery contents according to the inner packing list If there is visible damage to the packaging or the inner contents or if there is something missing contact the unit dealer Do not dispose of the original packaging It will be the best choice to store the inverter by re using the original packaging GEOI HIT LICL TIE GRID CONNECTED INVERTER SOLAR TECHNOLOGY www SUNGROWPOWER com 845 Fig 4 1 Single Inverter in Original Packaging Carton unit mm SUNGROW User Manual 4 Unpacking and Storage 4 2 Identifying Inverter A nameplate is attached to one side of the inverter and the carton respectively It provides information on type of inverter along with the most important specifications marks of certification institutions website and serial number which is available and identified by Sungrow a j
33. Step 5 Connect other PV strings in the same procedures if necessary Unused DC terminals should be sealed 6 5 Grounding the Inverter WARNING Because of the transformer less design of the inverter the DC positive pole and DC negative pole of the PV arrays are not permitted to be grounded 6 5 1 Grounding System Overview All non current carrying exposed metal parts of the equipment and other enclosures in the PV power system should be grounded e g PV arrays frame and inverter enclosure Where there is only one inverter in the PV power system connect PE cable to the installation ground Where there are multiple inverters in the PV power system connect PE cables of all inverters and mounting frame of PV arrays to the same copper bus bar In this way it will establish equipotential connection 42 SUNGROW User Manual 6 Electrical Connection Inverter 1 Inverter 2 Inverter n TOUTOO00D MMM HUN UIII Zm i PV Arrays 1 fn PV Arrays 2 Us Hf II PV Arrays n y 20 7 Mounting Frame of PV arrays i 5 i Copper Busbar O O O O OO O O O O O O O O O OOO Grounding Electrode Grounding of PV Power System FEE L1L2L3N AC Circuit Breaker Inverter o AA SAA NE DIGTEDE Tas I L1 LL2 113 LN FE a oR rte Be AC Grounding Electrode
34. T 2 gt 2014 01 21 30 2014 01 22 30 2014 01 23 30 2014 01 24 30 2014 01 25 30 2014 01 26 30 P 3 10 2014 01 21 10 16 P 3 30 PV1 PV2 2014 01 31 10 16 P W Vdc V 0000 0 0000 0 00000W Idc A 000 0 000 0 S Va 00000VA Pdc W 00000 00000 Country GB Indep mode ni Grid code A LV P 3 30 2014 01 31 10 16 P 3 10 2014 01 21 10 16 L1 L2 L3 Temp 000 0 C State Vac V 000 0 000 0 000 0 Run Tac A 000 0 000 0 000 0 Pac W 0000 0000 0000 F Hz 00 00 00 00 00 00 Main Screen Press ENTER Menu Press V His record Press ENTER Press v Flt record Press ENTER Inverter shows fault record pages Scroll pages by pressing Y Flt record P 1 2 1 gt 14 01 31 10 16 10 2 gt 14 01 31 10 16 10 3 gt 14 01 31 10 16 10 4 gt 14 01 31 10 16 10 5 gt 14 01 31 10 16 10 0008 0008 0008 0008 0040 The inverter can only store at most 10 latest fault records SUNGROW 67 10 Operation of LCD Display Panel User Manual 10 7 Start and Stop Inverter Main Screen Press ENTER Menu Press Y x2 Start Stop Press ENTER Press Y to choose Start Stop Start Stop Start Stop and press ENTER to
35. ained in this manual should be followed during installation operation and maintenance of the inverter And they will be highlighted by the following symbols DANGER DANGER indicates a hazard with a high level of risk which if not avoided will result in death or serious injury A WARNING WARNING indicates a hazard with a medium level of risk which if not avoided could result in death or serious injury CAUTION indicates a hazard with a low level of risk which if not avoided could result in minor or moderate injury NOTICE NOTICE indicates a situation which if not avoided could result in equipment or property damage ce NOTE indicates additional information emphasized contents or tips to help you solve problems or save time Symbols on the Inverter Body This symbol indicates that you should wait at least 10 minutes after disconnecting the inverter from the utility grid and from the PV input before touching any inner live parts Hot surface In order to reduce the risk of burns do not touch the hot surface when the device is running Look over the user manual before any operation on the inverter The installation and service of the inverter unit can only be performed by qualified personnel t STOP i et Do not disconnect DC connectors from the unit under load Contents Safety Instr ctions assisterende sees estere 1 Product Introduction
36. are routed in safe place or protected against mechanical damage Specification of AC circuit breaker is reasonable Terminals not used underneath the inverter are sealed Bie FOND Da sa D STD e Warning signs amp labels are suitably affixed and durable 7 2 Commissioning Procedure If all checking items mentioned above meet the requirements precede the following procedures to start up the inverter for the first time Step 1 Close external AC circuit breaker Step 2 Rotate DC switch to ON position Suppose there are sufficient sunlight and enough DC power PV arrays initialize and supply DC power to inverter The LCD display is activated to check the validity first If there is a defect on the display contact Sungrow 48 SUNGROW User Manual 7 Commissioning Step 3 Language selection screen will prompt Perform Languages language settings with the right two buttons ki English Detailed button functions can be referred to 10 1 O Deutsch Description of Button Function Press v to GF Pier choose language as you prefer Confirm the oe settings by Pressing ENTER ame Step 4 Configure time according to the local time Time Tr setting is very important which directly affects s e sa data logging Press gt to move cursor and Press Date 14 01 31 Y to scroll up time value Confirm the settings by s S Pressing ENTER Step 5 Select the country code according to the inver
37. as 64 TOA Adjust contrastano kasa dd tee 65 10 5 Detailed Running Information 66 106 History RECON arrene Dy een reel aa 67 10 6 1 Running Information Records 67 10 02 Fa l hecorlsuu y uum Qua asan a 67 TOP Start and StopiliiNertru yu na A a s 68 10 8 Input Parameter Settings Password 68 10 9 System Parameters Settindg 69 109 T Language Seting na yu uuu m aaa 69 10592 TIME SE HE ides uuu Sun u sn nun as 69 10 9 3 Energy Deviation Adjustment 69 1094 Load B r Ha mu unun uuu u conte enn site mrt ter eircryen taper 70 10 9 5 EirimiWware Ver O rande teten Mid nin Gala Salas gastaua 70 10 10 Running Parameter Setting 71 10 10 1 Main Screen of Run param 71 10 10 2 Reactive Power Regulations u uuu u awa Qanaq a Qaqaqa 72 10103 SAVE P O Sat nna m mm k Sa au aaa 74 10 11 Protective Parameters Setting 75 10 12 Communication Parameters Setting
38. as below figures show Step 8 Release the locking part of four connectors by pressing on the ribbing of the locking hooks and pull it outwards SUNGROW 59 9 Troubleshooting and Maintenance User Manual Step 9 Loosen the screws used for fastening the fans bracket Step 10 Remove the fan bracket from the inverter Step 11 Clean the fans with soft brush or vacuum cleaner Replace the broken fans if necessary Step 12 Re assemble the fans bracket onto the inverter Step 13 Connect the four connectors and fasten them with cable ties Step 14 Assemble the plate by fastening the four screws Step 15 The inverter can work again Air Inlet and Outlet Cleaning A huge amount of heat is generated with the running of the inverter The inverter adopts a controlled forced air cooling method Check whether there is anything blocking the air inlet and outlet to maintain good ventilation Clean the air inlet and outlet with soft brush or vacuum cleaner if necessary 60 SUNGROW User Manual 9 Troubleshooting and Maintenance 9 3 Contact Sungrow Service Should you have any problems in operating on the inverter please contact us Service hotline 86 551 6532 7817 Email service sungrow cn We need the following information to provide you the best assistance Type ofthe inverter Serialnumber of the inverter Fault code name Brief description of the problem SUNGROW 61
39. be used DC Cable Requirements Cross section Outer cable Max Withstand Max Withstand Area Range diameters Voltage Current 4 6mm2 Same with short circuit 12AWG 10aWwWG 2mm wn current Assembling Procedures The positive and negative connectors marked with polarity symbols will be assembled with colored cables as the following procedures Step 1 Strip off 7mm insulation layer from all DC cables Step 2 Assemble cable ends with crimp Positive Crimp Contact contacts by crimping pliers y p gt Negative Crimp Contact D di 38 SUNGROW User Manual 6 Electrical Connection Step 3 Lead cable through cable gland Positive Insulator Step 4 Insert the crimp contact into the insulator until it snaps into place Then pull gently to check if it is correctly engaged Step 5 Screw the cable gland to front insulator with tightening torque 2 5 3 NM For parallel mode with 5 or 6 strings you may need the T connector solution with MC4 type T connectors for connection Order the MC4 T connectors from Sungrow or connector manufacture 6 4 3 Wiring Procedures Ay DANGER Make sure that all the DC cables to the inverter are not live before you start the electrical work PV Connection of Independent Mode Connect the inverter to PV arrays as the following procedures Step 1 Manually rotate the DC switch at the bottom to the OFF position Step 2 Check the connection cable of PV string for the co
40. bleshooting in according to fault type in LCD screen See 9 1 2 Troubleshooting of Faults in LCD Screen 3 If it cannot be solved please contact Sungrow SUNGROW 53 9 Troubleshooting and Maintenance User Manual 9 1 2 Troubleshooting of Faults in LCD Screen When faults occur Fault state will be shown on the main screen Press Y to view multiple current fault information pages an Description Troubleshooting 1 Check the voltage of the grid 2 If the grid voltage exceeds the permissible range of inverter protective 002 The grid voltage has exceeded parameters ask utility grid company for inverter allowable upper limit solution 3 If the grid voltage is within the permissible range contact Sungrow Service Dept Inverter has checked that the 11 mir 56 oe au ae gria condition Wait a moment for inverter instantaneous sample value of 003 recovery the grid voltage exceeds the I dlon ble im toro met mne 2 If the fault still exists please contact Sungrow Service Dept 1 Check the voltage of the grid 2 If the grid voltage exceeds the The and volage has falen permissible range of inverter protective 004 below inverter s allowable lower Pa AEIR SSMU gre company tor limit solution 3 If the grid voltage is within the permissible range contact Sungrow Service Dept 1 This is a short term fault due to grid condition Wait a moment for inverter 005 The grid voltage is to
41. commissioning fails the FAULT indicator will be lit and fault will occur on the display Press Y to view current fault information Remove the existing malfunction and then repeat starting up inverter as the above procedures 50 SUNGROW 8 Disconnecting Dismantling and Disposing the Inverter 8 1 Disconnecting the Inverter For maintenance work or any service work inverter must be switched off In normal operation switching off is not necessary In order to disconnect the inverter from the AC and DC power sources you should proceed with the following procedures Otherwise you will be exposed to lethal voltages or the inverter will be damaged Step 1 Disconnect the external AC circuit breaker and prevent it from connecting again Step 2 Rotate DC switch to the OFF position and then turn off the upstream DC circuit break or pull off the MC4 terminal NOTICE Please strictly follow the above sequence Inverter will not work normally if otherwise Step 3 Wait about ten minutes until the capacitors inside the inverter have discharged Step 4 Measure to confirm AC output of inverter at the AC circuit breaker is voltage free Step 5 Pull AC connector out of the inverter Step 6 Release the locking part of DC connectors by pressing on the ribbing of the locking hooks with nipper pliers and pull it outwards Press the ribbing Pull outwards Disconnect DC connectors SUNGROW 51 8 Disconnecting Dis
42. d DC2 input must be short circuited v sg gt o lt D A so E Q _ Oo To make sure the maximum DC power can be utilized All PV strings connected to inverter should have a homogenous structure including the same type the same number identical tilt and identical orientation Prior to connecting inverter to PV inputs the following specifications should be met Open circuit Short circuit Total DC Power en Sre Type ae Voltage Limit for Current Limit for Limit for Inverter Each Input Total Input SG10KTL 10800W 1000V 50A SG12KTL 12800W 1000V 50A SG15KTL 15800W 1000V 50A SG20KTL 21000W 1000V 50A NOTICE There is a risk of inverter damage The following requirements should be met otherwise they will lead to loss of any or all warranty rights Make sure that the maximum short circuit current of each DC input is less than the inverter allowable limit Make sure that the maximum open voltage of each string is less than 1000V Voltage over 1000V can damage the inverter SUNGROW 37 6 Electrical Connection User Manual 6 4 2 Assembling DC Cable to Connector DC cables from PV strings should be equipped with DC connectors Pairs of DC connectors are supplied in the scope of delivery To maintain IP65 weatherproof function of inverter only the supplied DC connectors or the connectors of the same protection class can
43. d and connecting inverter to PV arrays There may be communication connection for monitoring inverter operation if necessary All electrical connection should follow the National Wiring Rules of Standard AS NZS 3000 The requirements in AS 4777 1 and AS NZS 3000 indicate that a DC isolator must be used before the inverter 28 SUNGROW User Manual 6 Electrical Connection D Fig 6 2 Electrical Connection Diagram Item Description Remark The maximum open circuit voltage of each PV string is PV arrays 1000V B Solarlnfo Logger It can be ordered from Sungrow C PC User equips this device to monitor inverter Used as a protective device during electrical connection D AC circuit breaker User equips this device according to the maximum output voltage and current E Utility Grid Rated AC voltage is 230V SUNGROW 29 6 Electrical Connection User Manual 6 3 Connecting Inverter to AC Grid 6 3 1 AC Side Requirements Only after receiving prior approval from the local grid company as required should you connect the inverter to the grid AC Side Circuit Breaker An independent three or four pole circuit breaker for each inverter must be installed at the output side to ensure that the inverter can be securely disconnected In
44. e In independent mode the two input areas work independently as shown in the following diagram J M AU poN u pu d pu ul To make sure the maximum DC power can be utilized PV strings i connected to individual input area should have a homogenous structure including the same type the same number identical tilt and identical orientation Prior to connecting inverter to PV inputs the following specifications should be met Total DC DC Power Open circuit Short circuit Type Power Limit Limit for Each Voltage Limit Current Limit for Inverter Input for Each Input for Each input SG10KTL 10800W 5400W 1000V 25A SG12KTL 12800W 6400W 1000V 25A SGI5KTL 15800W 7900W 1000V 25A SG20KTL 21000W 10500W 1000V 25A NOTICE There is a risk of inverter damage The following requirements should be met otherwise they will lead to loss of any or all warranty rights Make sure that the maximum short circuit current of each DC input is less than the inverter allowable limit Make sure that the maximum open voltage of each string is less than 1000V Voltage over 1000V can damage the inverter 36 SUNGROW User Manual 6 Electrical Connection Parallel Mode In parallel mode the PV inputs can be connected in parallel with sharing the same MPPT as the following diagram shown One pair of DC terminals in DC1 input an
45. e inverters side by side For multi row inverters installation position the inverters in a staggered arrangement VW Xe 2 300mm 300mm Y CI x 22 2 gt 300mm I 300mm Do not install the inverter in a closed cabinet Otherwise the inverter will not operate normally Do not install the inverter where children can reach 22 Closed Cabinet SUNGROW User Manual 5 Installing Inverter onto Wall Do not install the inverter in living area Noise may be produced during inverter running which may affect your daily life 5 2 Moving Inverter to Installation Site If the inverter is to be installed remove the unit from the packaging and move it to the selected installation site During the moving process the following instructions should be obeyed 1 Always remember the weight of the inverters 2 Grasp the equipment handles by both hands by means of handles 3 Move the unit with the help of others or the lifting device 4 Do not release the equipment unless it has been secured to the wall firmly 5 3 Mounting the Inverter Inverter is installed onto the wall by means of backplate enclosed in the packaging 522 4 gt 492 a gt 2 M4x10 f i VA N N N O O gt RE O Po bi l o OD S ole cO HN 9 S Sin N
46. e material or gas near the installation 20 SUNGROW User Manual 5 Installing Inverter onto Wall Install the unit at eye level for easily buttons operation and display read It is suggested that the inverter be installed vertically with upside up for good heat dissipation Never install the inverter horizontally nor with a forward tilt nor with a backward tilt nor even with upside down Forward tilt Backward tilt Horizontally Upside down r lt 2 ZB om Mo 9 N 2 2 ula I WAN 60 C indoors or outdoors also The ambient temperature should range from 25 C to 60 C Min ambient temperature 25 C The relative humidity at the installation can reach Max relative humidity 100 100 Moisture may result in corrosion and damage to the internal device components Q SUNGROW 21 5 Installing Inverter onto Wall User Manual Avoid exposing inverter to direct sunlight or rain or snow to extend its service life despite the IP65 protection degree Exposure to the sun may cause additional internal heating which will cause power reducing Shaded site of the building is preferred gt lt sunlight gt Direct rain fall Snow accumulation Take enough space for convection into consideration during installing the inverter For multiple inverters installation position th
47. eed as follows to perform the parameter settings Switching Mode Editing Mode Va N N i 4 y Long press Oto confirm all the Long press or Shortly press to decrease one step value settings Q J Italy Q P Mode The power factor changes with the output power of F g the inverter PB 50 0 Select Q P mode and Press Y to enter into the 7 Run para Q P sub menu Fa sa 105 6 Press Y to navigate the cursor Press gt to enter into Uout 100 0 the editing mode then the selected parameter will be shaded Press Y to increase one step value Press gt to decrease one step value Press ENTER to confirm the setting and exit from the editing mode Tab 10 9 Italy Q P Mode Parameters Explanation Parameter Explanation Default Range Step PA Active power at point A in 20 20 100 1 PB Active power at point B in 50 20 100 1 PC Active power at point C in 100 20 100 1 Pf max Power factor at point C 0 9 0 9 1 0 01 Enter into the Q P regulation Uin mode when the grid voltage is 105 100 110 1 above Uin Exit from the Q P regulation Uout mode when the grid voltage is 100 90 100 1 below Uout PA lt PB lt PC xx Uin gt Uout 80 SUNGROW User Manual 10 Operation of LCD Display Panel Default Curve I Deviation P Pn ZZ No adjustment coso 0 98 0 9 0 950 ZZ lursu
48. erter is not electrically connected System performance loss due to bad ventilation The equipment requires good quality ventilation during operation It is essential to keep the unit upright and nothing covering the heat sink to ensure that the equipment interior is well cooled down During Electrical Connection NOTICE All electrical connections must be in accordance with local and national standards Only with the permission of the local energy sector the inverter can be connected into the utility grid 2 SUNGROW User Manual 1 Safety Instructions Ay DANGER Lethal voltage exists PV arrays will produce electrical energy when exposed to sunlight and thus can create an electrical shock hazard Wiring of the PV arrays should only be performed by qualified personnel WARNING All cables must be firmly attached undamaged properly insulated and adequately dimensioned During Inverter Operation Do not open the enclosure when the inverter is under voltage There is a highly unlikely risk of explosion in very specific cases of malfunction The housing will protect persons and property from such an explosion only if it is correctly sealed A DANGER There is a risk of inverter damage or personal injury Do not disconnect DC connectors while the inverter is under AC load First de energize the equipment from dual power sources and then verify that there is no voltage present There is a risk of burn
49. eter Press gt II Max V grid 000 0V II Min V grid 000 0V to move cursor right and Press Y to II Max V time 00 00s II Min V time 00 00s set the appropriate value Confirm settings by Pressing ENTER ao gt I Max F grid 00 00Hz gt I Min F grid 00 00Hz I Max F time 00 005 m TE Min Ene 00 005 II Max F grid 00 00Hz ai Mitch grid 09 00Hz II Max F time 00 00s 11 Min F time 09 005 Tab 10 8 Multi stage Protective Parameters Explanation Parameter Explanation Max V prot Over voltage protection I Max V grid Stage I Grid over voltage U gt I Max V time Stage I Grid over voltage U gt tripping time I Max V grid Stage LI Grid over voltage U gt gt LI Max V time Stage LI Grid over voltage U gt gt tripping time Min V prot Under voltage protection I Min V grid Stage I Grid under voltage U lt I Min V time Stage I Grid under voltage U lt tripping time IT Min V grid Stage I Grid under voltage U lt lt II Min V time Stage I Grid under voltage U lt lt tripping time Max F prot Over frequency protection I Max F grid Stage I Grid over frequency f gt I Max F time Stage I Grid over frequency f gt tripping time LI Max F grid Stage LI Grid over frequency f gt gt LI Max F time Stage LI Grid over frequency f gt gt tripping time Min F prot Under frequency protection I Min F grid Stage Grid under frequency f l
50. fy whether the grid voltage and frequency are within the range of inverter output parameters referred to Appendix Consult local grid company for solution if otherwise Connect the inverter exclusively to TN or TT mains as the following procedures Connecting SG10KTL SG12KTL SG15KTL to AC Grid Step 1 Unscrew the water proof terminal in the following direction Step 2 Insert appropriate size AC cables into the water proof terminal Step 3 Strip off insulation layer of all AC cables The length of strip insulation is approximately 5mm 1 N 2 L1 3 L2 Step 4 Fix all cables ends to the corresponding ere terminals with the torque of 1 Nm according to markings on the connector especially PE cable If a phase wire is g connected to the PE terminal it may A Ly permanently destroy the inverter co Step 5 Pull cables outwards to confirm whether they are installed firmly Step 6 Combine the two front end parts together with the torque of 2 N m Step 7 Tighten the water proof terminal with the torque of 5 N m in opposite directions Step 8 Make sure the AC and DC circuit breaker are disconnected Step 9 Connect phase cables and N cable to AC circuit breaker 32 SUNGROW User Manual 6 Electrical Connection Plug AC connector to corresponding AC terminals Screw AC cables except the PE cable to the AC circuit breaker Step 10 Connect AC circuit breaker to utility grid Step 1
51. hat the two mounting ears on the back of the inverter and counterparts of the backplate engage perfectly as shown in Fig 5 5 Step 7 After fit the inverter to the backplate fasten the inverter to the backplate with two M4x16 screws Fig 5 5 Installing the Inverter 5 3 2 Installing the Inverter on Metal Frame If the chosen mounting location is metal frame please follow steps below to mount the inverter Step 1 Remove the backplate from the packaging Step 2 Place the backplate onto the chosen metal frame and adjust it until it is in a horizontal position Step 3 Mark the positions to drill holes using the backplate as the template Step 4 Drill holes according to the marks you have made Mark positions Drill holes lt A lt Step 5 Fasten the backplate against the wall with supplied bolts and nuts The torque for fastening the nut is 35 N m SUNGROW 25 5 Installing Inverter onto Wall User Manual Install backplate 5 6 3 1 Hexagonal socket nut M10 4 2 Spring washer 2 i 3 Washer 4 Hexagonal bolt M10 45 Metallicwall 2 a Fig 5 6 Fasten Backplate against Metal Frame with Bolts and Nuts Step 6 Lift up the inverter above the backplate with the help of others and then slide down to make sure that the two mounting ears on the back of the inverter fit perfectly with the backplate as shown in Fig 5 7 Step 7 After fit the inverter
52. he MV to enable disable the LVRT function regardless of the country selected Step 8 After configuring the Grid Code there will Pro param be a Pro param type selection screen and then corresponding sub menu will come up For detailed information please refer to 10 11 Protective Parameters Setting Single stage O Multi stage IT Italy Pro param P Pro Stage mis Fmax recover 50 10Hz Fmin recover 49 90Hz Vmax recover 253 00V Vmin recover 195 5V Step9 According to the actual PV strings PV config mode configuration mode choose the same mode in the inverter by the LCD display O Ep ENE m menu see 10 13 PV Configuration Mode Setting Parallel mode Setting confirmation Step10 After configuring all parameters there will be a setting confirmation screen Country Other Check whether all above mentioned code ali PV conf mode Paral mode parameters are correct Confirm by LVRT OFF Pressing ENTER Cancel by Pressing ESC Date 2014 01 31 and reset Confirm above settings Step 11 Inverter will enter into startup process Observe status of LED indicators and the ia 14 00 kw LCD main screen If O inverter s mm 15 6 kun H H 7 m E tot commissioning succeeds the RUN 7 et u j c un indicator will be lit and RUN will be t P displayed on the State area Se PA o0 2014 01 31 10 30 Ifinverter s
53. he default value except the protective parameters and time once the load default operation is performed Main Screen Press ENTER Menu screen Press Y x3 Set param Press ENTER Enter password Press ENTER Sys param Press ENTER Press VY x3 Load default Press ENTER A password confirmation screen will occur Press gt to move cursor right and Press Y to input the password 111111 Press ENTER to confirm load default 10 9 5 Firmware Version Load default Password 000000 Main Screen Press ENTER Menu screen Press Y x3 Set param Press ENTER Enter password Press ENTER Sys param Press ENTER Press VY x4 Firmware version Press ENTER Inverter shows detailed firmware information including LCD version and DSP version The firmware version information is read only 70 Firmware version LCD LCD_SG15KTL_V1_E M DSP DSP SG15KTL_V11 X SUNGROW User Manual 10 Operation of LCD Display Panel 10 10 Running Parameter Setting 10 10 1 Main Screen of Run param Main Screen Press ENTER Menu screen Press Y x3 Set param Press ENTER Enter password Press ENTER Press Y Run param Press ENTER On the Run param screen Press Y to select one item Hun paran mig and Press ENTER to start this item setting pe Standby time Bees Recovery time 030s For each item setting Pres
54. increase one step value Max F prote Min F prote Press gt to decrease one step value D ohak Papata A gt I Min F rete 00 00Hz Press ENTER to confirm the setting and I Max F tempo 00 005 T Min F tempo 08 08 exit from the editing mode II Max F rete 00 00Hz TUM Fe Ag pan II Max F tempo 00 00s II Min F tempo 00 00s SUNGROW 83 10 Operation of LCD Display Panel User Manual Tab 10 13 IT Stage H Protective Parameters Explanation Parameter Explanation Max V prote Over voltage protection I Max V rete Stage I Grid over voltage U gt I Max V tempo Stage I Grid over voltage U gt tripping time LI Max V rete Stage H Grid over voltage U gt gt LI Max V tempo Stage H Grid over voltage U gt gt tripping time Min V prote Under voltage protection I Min V rete Stage I Grid under voltage U lt I Min V tempo Stage I Grid under voltage U lt tripping time I Min V rete Stage I Grid under voltage U lt lt LI Min V tempo Stage II Grid under voltage U lt lt tripping time Max F prote Over frequency protection I Max F rete Stage I Grid over frequency f gt I Max F tempo Stage I Grid over frequency f gt tripping time LI Max F rete Stage II Grid over frequency f gt gt LI Max F tempo Stage I Grid over frequency f gt gt tripping time Min F prote
55. ing the storage time periodically check any visible damage by rats and other rodents Replace the packaging if necessary The packaging should be kept upright If there is more than one inverter to be stored the maximum layers for original carton is three After long term storage local installer or service dept of Sungrow should perform a comprehensive test before connecting the inverter into PV power system Fig 4 4 Example for Inverter Storage SUNGROW 19 5 Installing Inverter onto Wall Installation shall comply with local regulations and technical rules Installation shall comply with the relevant instructions of AS 4777 1 5 1 Selecting Installation Location Selecting an optimal installation location for the inverter is decisive for its operating safety as well as its expected efficiency and service life Take the load capacity of the wall into account The wall such as concrete wall and metal structure should be strong enough to hold the weight of the inverter over a long period of time Install the unit where is accessible to install electrical connect or service Do not install the unit on the wall of flammable materials Flammable wall material Do not install the inverter where contains flammable materials or flammable gas in the vicinity of the unit installation Flammabl
56. local time you should perform the operation time setting Otherwise the inverter data logging will fail Clock is 24 hour format Main Screen Press ENTER Menu screen Press Y x3 Set param Press ENTER Enter password Press ENTER Sys param Press ENTER Press v Time Press ENTER On the Time screen Press gt to move the cursor right Time and Press Y to set the correct date and time Format YY MM DD Confirm settings by pressing ENTER Date 14 01 31 Time 10 30 55 10 9 3 Energy Deviation Adjustment If the accumulative value of E total in the inverter is different from the value in the external metering device you should adjust the Energy adj setting Main Screen Press ENTER Menu screen Press Y x 3 Set param Press ENTER gt Enter password Press ENTER Sys param Press ENTER Press yv x2 Energy adj Press ENTER SUNGROW 69 10 Operation of LCD Display Panel On the Energy adj screen Press gt to move cursor right and Press Y to set the correct offset value Confirm settings by pressing ENTER The positive symbol can be changed to the negative symbol The adjustment range is from 9999 to 9999 kWh Energy adj value Real measured value E tot reading value 10 9 4 Load Default NOTICE User Manual Energy adj 0000kWh All history accumulated information will be unrecoverable cleared and all parameters will return to t
57. mantling and Disposing the Inverter User Manual 8 2 Dismantling the Inverter Refer to Chapter 5 and Chapter 6 to dismantle the inverter in reverse steps NOTICE If the inverter will be reinstalled in the future please refer to 4 4 Storage of Inverter for a proper conservation 8 3 Disposing the Inverter Users should take the responsibility for the disposal of the inverter NOTICE Some parts and devices in the inverter such as LCD displayer batteries capacitors May cause environment pollution Users must comply with the related local regulations to avoid causing pollution 52 SUNGROW 9 Troubleshooting and Maintenance 9 1 Troubleshooting 9 1 1 Troubleshooting of LED Indicator See Tab 2 1 Description of LED Indicator for definition of LED s states Type of fault Troubleshooting LED indicators and LCD screen cannot be lit 1 Disconnect AC side circuit breaker 2 Rotate the DC Switch to the OFF position 3 Check the polarity of DC input RUN indicator goes out 1 Disconnect AC side circuit breaker 2 Rotate the DC Switch to the OFF position 3 Check the correctness of electrical connection of inverter See 6 Electrical Connection 4 Check whether DC input voltage exceeds the inverter start voltage of inverter 5 If all above conditions are OK please contact with Sungrow Fault indicator is lit 1 A fault is not removed yet 2 Perform trou
58. ngrow is to help our customers acquire stable and clean power with minimum cost maximum reliability and enhanced safety Contact Information Should you have any problems about this product please contact us through the following information We will be more than happy to assist you Company Sungrow Power Supply Co Ltd Website www sungrowpower com Email info sungrow cn service sungrow cn No 1699 Xiyou Rd New amp High Technology Industrial Development Address Zone Hefei P R China Zip 230088 Telephone 86 551 6532 7834 86 551 6532 7845 Fax 86 551 6532 7856 SUNGROW 89 SUNGROW Green and Effective Specifications are subject to changes without advance notice
59. ngs and utility grid in the small scaled PV power system Inverter is dedicated to converting direct current power generated by the PV modules into alternating current which conforms to parameters of local utility grid and feeds the alternating current into the utility grid The intended usage of the inverter is illustrated in Fig 2 1 A WARNING Inverter CANNOT be connected to the PV modules the positive or negative terminal of which needs to be grounded Fig 2 1 Application of the inverter of the PV Power System Item Description Note monocrystalline silicon polycrystalline silicon and thin film sui without grounding B Inverter SG10KTL SG12KTL SG15KTL or SG20KTL involved C s eno meter cupboard with power distribution system device D Utility grid TT TN C TN S TN C S 6 SUNGROW User Manual NOTICE Any other or additional usage is not permitted except the intended usage 2 Product Introduction Inverter may only accept PV modules with Protection Class II as its input Inverter may only be connected to utility grid via distribution board Local loads home appliance lights motor loads etc cannot be connected between inverter and AC circuit breaker on the distribution board Additionally the unit is intended for fixed installation Located on a part that is not removable without impairing
60. nstructions NOTICE There is a risk of inverter damage if it is improperly serviced Use only accessories and spare parts approved by the inverter manufacturer Never modify the inverter or other components of the inverter Otherwise it will cause loss of any or all warranty rights NOTICE There is a risk of inverter damage due to electrostatic discharge The printed circuit boards contain components sensitive to electrostatic discharge Wear a grounding wrist band when handling the boards Avoid unnecessary touch with the boards during replacement Others NOTICE The selected country settings can be changed by service personnel only Unauthorized alternation of the country settings should be prohibited Otherwise it may cause a breach of the type certificate marking WARNING All safety instructions warning labels and nameplate on the inverter body Must be clearly visible Must not be removed covered or pasted WARNING These regulations should also be followed The regulations related to the electricity fed into grid The safety instructions related to PV arrays The safety instructions related to other electrical device SUNGROW 5 2 Product Introduction 2 1 Intended Usage SG10KTL SG12KTL SG15KTL and SG20KTL They will be referred to as inverter hereinafter unless otherwise specified which are 3 phase string inverters without transformer are crucial units between the PV stri
61. nual S gt Q IIP Wy gt Item Description A Inverter unit B Backplate for mounting inverter onto the wall C Expansion bolts for fastening backplate onto concrete wall D Fastener set for installing backplate on metal frame E PV input connectors including positive and negative connectors F AC connector G Waterproof communication connector H 2 M4X 16 screws for fix the inverter to the backplate Two pairs Seal the unplugged PV connectors with sealing caps J Quality certificate K User Manual and Quick Installation Guide L Packing list M Product test report 18 SUNGROW User Manual 4 Unpacking and Storage 4 4 Storage of Inverter Where the inverter may not be installed immediately or inverter needs to be stored under certain condition store the unit as the following indications The unit must be packed into original carton and desiccant must be put inside If the original packaging is not available an equivalent carton which is able to support the unit weight and size can be used The packing should be sealed by adhesive tape The unit must be stored in a clean and dry place to protect against dust and moisture The storage temperature should be always between 30 C and 85 C And the storage relative humidity should be always between 0 and 100 It is very important to keep the packing away from chemicals Otherwise it will lead to corrosion Dur
62. nual 2 3 3 Derating Derating the output power is a way to protect the inverter from overload and potential malfunctions Inverter s derating function can be activated in the following scenarios PV input overload Too low grid voltage Too high inner temperature Power limit setting on the inverter LCD display Grid frequency too high when the Country selection is DE or IT PV Overload Derating When the PV input power exceeds the defined TotallnputPowerMax see Tab 2 2 the inverter will reduce the power evenly to the maximum limit and keep the output power at nominal value Tab 2 2 Maximum Input Power Type SG10KTL SG12KTL SG15KTL SG20KTL TotallnoutPowerMax 11000W 13000W 15800W 21000W P input Totallnput PowerMax Totallnput PV power PowerMax output Fig 2 6 PV Overload Derating 12 SUNGROW User Manual 2 Product Introduction Grid Under voltage Derating Once the grid voltage is in the defined range of Vgrid Vmin 215V the inverter will decrease the power output Prvmin 215v Pn x Vgrid 230V Working area p gt Vmin 215V Vmax Fig 2 7 Grid Under voltage Derating Over temperature Derating Power modules over temperature may result from high ambient temperature poor ventilation or fault of fans Over temperature derating may protect the inverter as well as the power modules against damage Pnom P U 0 6 Temp 1 Temp 2 Temp 3 Power Module tempera
63. o consuming load may be connected to power supply cables from the 9 inverter to the AC circuit breaker In addition ensure that the ground cable is laid far away from and not directly in parallel to the power supply cable 34 SUNGROW User Manual 6 Electrical Connection 6 4 Connecting Inverter to PV Arrays Ay DANGER Lethal voltage exists PV arrays produce electrical energy when exposed to light and thus can create an electrical shock hazard Wiring of the PV arrays should only be performed by qualified personnel WARNING Before connecting the PV arrays to the inverter make sure that the impedances between the positive terminal of the PV string and Earth and the impedances between the negative terminal of the PV string and Earth are larger than 1Mohm 6 4 1 PV Inputs Configuration SG10 12 15 20KTL inverters have two PV input areas DC1 input and DC2 input each with its MPP tracker The two PV input areas can work in Independent mode or parallel mode set by LCD display menu see 10 13 PV Configuration Mode Setting You may see technical information PV Configuration Mode Selection Guide in the Sungrow website to decide the PV configuration mode for inverter NOTICE The mode in which actual PV strings are connected and the mode that is set in the inverter LCD display menu should be identical Otherwise inverter will not work normally SUNGROW 35 6 Electrical Connection User Manual Independent Mod
64. o low recovery 2 If the fault still exists please contact Sungrow Service Dept 1 The inverter will resume if the output 006 The AC output current exceeds current falls below the protective value inverter protective limit 2 If the fault still exists please contact Sungrow Service Dept 007 Inverter has checked AC The inverter will self recover after overcurrent temporarily several seconds The grid frequency has 1 Checkthe frequency of the grid 008 exceeded inverter allowable 2 If the grid frequency exceeds the upper limit permissible range of inverter protective parameters ask utility grid company for The grid frequency has fallen solution 009 below inverter allowable lower 3 If the grid frequency is within the limit permissible Service Dept range contact Sungrow 54 SUNGROW User Manual Fault Code Description 9 Troubleshooting and Maintenance Troubleshooting 010 Islanding 1 Check whether AC circuit breaker is triggered 2 Check whether AC cables are all firmly connected 3 Check whether grid is not on service 4 If all conditions are OK and this malfunction still occurs in the LCD screen contact Sungrow Service Dept 011 The DC component of AC current has exceeded inverter limit 1 Wait a moment for inverter recovery 2 If the fault occurs repeatedly contact Sungrow Service Dept 012 Inverter has detected that there is a failure current 1 Check
65. own Pin 8 Brown I 23456 I I 7 12345678 Pin 3 and Pin 6 are used for communication Pin 3to RS485 B Pin 6to RS485 A RS485 A RS485 B Step 6 Connect the other devices Communication terminal definition is referred to device manual Step 7 Verify the communication connection and configure the communication parameters If there is more than one inverter to communicate with a PC or a data logger it is crucial to configure the communication parameters of each inverter See 10 12 Communication Parameters Setting Solarlnfo logger and RS485 232 converter are optional parts and can be ordered from Sungrow Pin3 TX RS485 E D E 7 RX C re Ott o i RS 232 RS 485 RS422 l RS232 SUNGROW 47 7 Commissioning Commissioning is a Critical part for a well installed PV system which can protect against fires injury and electrical shock 7 1 Inspection before Commissioning Before starting the inverter you should check the following items should be checked for requirements Inverter unit is accessible for operation maintenance and service Re check that the inverter is firmly installed onto the wall Space for ventilation well is provided for one inverter or more than one inverter Nothing is left on the top of the inverter unit Inverter and accessories are correctly connected Cables
66. pt its running or if a malfunction occurs rotate DC switch to the OFF position to stop inverter from running Rotate the DC switch to the ON position before restarting the inverter SUNGROW 2 Product Introduction User Manual 2 3 Technical Description 2 3 1 Principle Description The principle design of transformer less and grid connected inverter is illustrated in Fig 2 5 Six PV strings input voltage is transmitted to DC BUS via Boost circuit SG10 12 15 20KTL inverters are equipped with MPPTs for two DC inputs to ensure that the maximum power can be utilized even in different PV installation conditions Three level inverter circuit converts the DC power into AC power which will be fed into the utility grid via five core terminals Protective circuits are designed to guarantee inverter safe operation and human safety A DC switch is integrated for safe disconnection of DC current The inverter provides standard interface RS485 for communication Inverters are also provided running records display and parameters configuration via human computer interface LCD display panel DC 1 DC Switch E Be el D V I 4 x MPPT1 i l i EMC 5 To ol Filter Boost Relay a Lege os IU es 2 i IGBT eae 11 Threelevel ts Lt etre Inverter Circuit AC I ee ae EMC L2 Q i Fe ae
67. rotective parameters have been configured before delivery according to different countries utility grid requirements Choose the wo correct country code by Press Y and Press ENTER to Other O ES O O BE O DE O FR O IT AT O AU O CZ DK O GR LO GR_IS PT O CHN O SE confirm The description of country code is illustrated below Country Code Full Name Country Code Full Name GB Great Britain DE Germany FR France IT Italy ES Spain AT Austria AU Australia CZ Czech BE Belgium DK Denmark GR L Greece Land GR IS Greece Island NL Netherlands PT Portugal CHN China SE Sweden Other Country not included above SUNGROW 75 10 Operation of LCD Display Panel User Manual Confirm by pressing ENTER after country code selection Sri codes Choose grid code according to actual grid condition Note LV represents Low Voltage Grid Code and MV represents Middle Voltage Grid Code MV LVRT on When choose MV Press gt to enter the LVRT function selection Press Y to switch on or off the LVRT function and Press ENTER to confirm the selection O LV Note If the Country selected does not have the Grid codes directives this configuration will not affect the following procedures However you may select the MV to enable disable the LVRT function regardless of the country selected Press Y to select protective parameter type Press ENTER FPro param
68. rrect polarity and that the open circuit voltage does not exceed the inverter input limit 1000V even under the lowest operating temperature SUNGROW 39 6 Electrical Connection User Manual eg NOTICE Check the positive and negative polarity of the PV cells After confirmation you can insert the DC connectors into the input terminals on the bottom of the inverter For the same MPPT reverse connection of a single string is prohibited A permanent failure of the system or inverter may follow if otherwise Step 3 Plug the positive and negative DC connectors into corresponding terminals until it click locks into place It must not be connected to the different input areas for this PV string SUNGROW 40 User Manual 6 Electrical Connection The same PV string The same PV string Step 4 Connect other PV strings following the same procedures if necessary Unused DC terminals should be sealed PV Connection of Parallel Mode Connect the inverter to PV arrays as the following procedures Step 1 Manually rotate the DC switch at the bottom to the OFF position SUNGROW 41 6 Electrical Connection User Manual Step 2 Short connected the two input areas as the following indications before any PV string connection Step 3 Check the connection cable of PV string for the correct polarity Step 4 Plug the positive and negative DC connectors into corresponding terminals until it click locks into place
69. rstorm prone areas NOTICE RS485 cable requirements to ensure the quality of communication Shielding Ethernet cable Twist pair type cable A converter such as RS485 232 converter or Solarlnfo Logger which converts 485 to 232 signal is needed between inverter and PC 6 6 2 Communication System For Single Inverter Where there is only one inverter a RS485 cable with RJ45 connector enables connection between inverter and PC If the communication distance is more than 100m the communication system must be terminated with a resistor of 120 O i Solarinfo Logger IN OUT Rags Solarlnfo Logger PC Green Shielding layer is grounded erat i ee ee Se E Se a ae el Communication of single inverter Fig 6 6 One Inverter Connected to PC or Solarlnfo Logger For Multiple Inverters Where there is more than one inverter all inverters can be connected to PC in daisy chain The first inverter in the chain must be terminated with a resistor of 120 O The SUNGROW 45 6 Electrical Connection User Manual shielding layer of RS485 cable should be single point grounded The maximum number that inverters are connected in the daisy chain depends on converter data logging device and other factors Please refer to converter s or data logging device s manual to obtain the limit Inverter Inverter Inverter a eine Solarlnfo Logger IN OUT IN OUT IN OUT RS485
70. s gt to move the cursor right Bhd ore apes and Press Y to set the appropriate value Derating Slope 100 00 Confirm settings by Pressing ENTER Y Run param P2 2 gt Q Var switch 0FF PF 1 000 Q Var limits 100 0 Tab 10 4 Specification of Running Parameters Parameter Explanation Default Range The time from inverter Standby time initialization to inverter feeding 20s 20 255s power to grid The time from the fault is cleared 30s Recovertime to inverter feeding power to IT 0 900s grid 300s P W limits Inverter active power limits 100 0 0 100 I Whether to start inverter reactive Pf Qt Off ein power adjustment function Pf Q P IQ U PF Power factor 1 000 ER i Q Var limits Inverter reactive power limits 0 0 0 100 0 100 Over frequency power derating Derating slope Pm Hz 83 33 40 100 Slope Only available when the Countries is selected to IT SUNGROW 71 10 Operation of LCD Display Panel User Manual 10 10 2 Reactive Power Regulation The inverter provides reactive power regulation function Use the Q Var switch parameter to activate this function and select proper regulation mode Regulation Mode Explanation The reactive power can be regulated by the parameter PF i Power Factor Ot The reactive power can be regulated by the parameter Q Var limits in The PF is limited to 1 000 and the Q Var limits is limited to Off 0
71. scription O Inverter is in IAP update process oe Fans inside are working Fri Inverter is warning the running state Le Inverter in power reduction state 10 4 Adjust Contrast man n m s n m m m s m m E 9 naa a a a n a a a n a Step 1 Press ESC to enter into the contrast adjustment screen Step 2 Press Y to increase the setting value and press gt to decrease the value Step 3 Press ENTER to confirm the contrast setting SUNGROW 65 10 Operation of LCD Display Panel User Manual The contrast value ranges from 0 to 100 The recommended value is 50 or 60 10 5 Detailed Running Information On the main screen there is some basic information about the inverter For more detailed running information please operate as follows Main Screen Press ENTER Menu gt Run info Press ENTER LCD screen will show four detailed running information pages Scroll pages by pressing gt Y DC power input represents the total input power of PC power input 00000W PV1 and PV2 Pya ik Vdc indicates the DC voltage of each input sua eee Idc indicates the DC current of each input ata n Pdc indicates the DC power of each input ei idl Mech Indep mode is the PV configuration mode of the two mede x El PVinputs indicates the corresponding input is at work P W
72. ssasipisusmaqas E T That depends on the capacity of the inverter Fig 10 6 Reactive Power Regulation Curve in IT Q P Mode Italy Q U Mode voltage Vli 092 0 Select Q U mode and Press Y to enter into the a Run para Q U sub menu jia ena Press Y to navigate the cursor Press gt to enter into Pin 020 0 the editing mode then the selected parameter will be y shaded Run param Q U P4 4 Press Y to increase one step value Press gt to ies ar decrease one step value sr Aly Press ENTER to confirm the setting and exit from the editing mode Tab 10 10 Italy Q U Mode Parameters Explanation Param Explanation Default Range Step V2i Grid voltage at point D in 90 90 110 1 V1i Grid voltage at point C in 92 90 110 1 V2s Grid voltage at point A in 108 90 110 1 V1s Grid voltage at point B in 110 90 110 1 Qmax The max ratio of reactive power in 90 50 100 1 Pin Enter into the Q U regulation mode 20 20 100 1 when the power is above Pin Pout Exit from the Q U regulation mode 9 1 20 1 when the power is below Pout Curve Curve type A A B V2i lt V1i lt V 1s lt V2s Pin gt Pout SUNGROW 81 10 Operation of LCD Display Panel Vis Inductive Qmx Q t Capacitive Vii V 4 SM ERR KN 3 D A Default Fig 10 7 Reactive Power Regulation Curve in IT
73. t I Min F time Stage I Grid under frequency f lt tripping time LI Min F grid Stage Grid under frequency f lt lt LI Min F time Stage I Grid under frequency f lt lt tripping time SUNGROW 77 10 Operation of LCD Display Panel User Manual Confirm settings by pressing ENTER and enter the Setting confirmation Setting confirmation screen ae a Check all above mentioned parameter settings Confirm Grid code LV them by pressing ENTER Cancel by pressing ESC and OFF reset Confirm above settings When the Country or the Grid code or LVRT switch mode is changed the protective settings will be unavailable unless the inverter is re energized 10 12 Communication Parameters Setting Main Screen Press ENTER Menu screen Press Y x3 Set param Press ENTER Enter password Press ENTER Press Y x3 Com param Press ENTER Press gt to move cursor right and Press Y to set the appropriate value Confirm settings by Pressing ENTER Com param Address 001 The range of communication address is 1 247 10 13 PV Configuration Mode Setting Main Screen Press ENTER Menu screen Press Y x3 Set param Press ENTER Enter password Press ENTER Press Y x4 PV config mode Press ENTER Enter password 111111 Press ENTER On the PV config mode screen Press Y to choose PV configuration mode Press ENTER to confirm the PV config mode
74. t Sungrow Service Dept 021 Inverter has checked that there Check the layout and the wiring of PV1 SUNGROW 55 9 Troubleshooting and Maintenance User Manual Fault Description Troubleshootin Code p 9 is overcurrent of PV1 input input 022 Inverter has checked that there Check the layout and the wiring of PV2 is overcurrent of PV2 input input PV nfiguration m h I ae a oe aS Check the PV input configuration mode 023 changed during inverter h and restart the inverter when necessary running 1 Inverter will recover if the deviation Inverter has checked the RE ie value falls below the protective limit 024 deviation of neutral point 2 If the fault occurs repeatedly contact voltage Sungrow Service Dept 1 Inverter will recover if the deviation Inverter has checked out the aot peice value falls below the protective limit 025 unbalance of neutral point Voltage temporari 2 If the fault occurs repeatedly contact i Sungrow Service Dept 1 This is a short term fault Wait a There is high Bus fluctuation moment for inverter recovery 026 3 i voltage 2 If the fault still exists please contact Sungrow Service Dept The DC current is not balanced 1 Wait a moment for inverter recovery 027 between the two PV inputs for 2 If the fault occurs repeatedly contact parallel PV configuration mode Sungrow Service Dept 036 The temperature of module is 1 Check whether A
75. t safety regulations in the deployment location when installing or operating the product Ignoring safety warnings and instructions contained in all documents relevant to the product Installing or operating the product under incorrect safety or protection conditions Altering the product or supplied software without authority The product malfunctions due to operating attached or neighboring devices beyond allowed limit values Damages caused by irresistible natural environment The use of supplied software produced by Sungrow Power Supply Co Ltd is subject to the following conditions Sungrow Power Supply Co Ltd rejects any liability for direct or indirect damages arising from the use of the Solarlnfo software This also applies to the provision or non provision of support activities Using the SolarInfo software for commercial purposes is prohibited Decompiling decoding or destroying the original program including SolarInfo software and the embedded software is prohibited 88 SUNGROW 11 4 AboutUs Sungrow power supply is a China leading manufacturer of various power electronics products for renewable energy generation systems Our products include converters inverters battery chargers and other power supplies for distributable generation system in both grid connected and stand alone applications The power rating of Sungrow products covers from hundred watt to mega watt systems The vision of Su
76. ter continues feeding into the grid Contact Sungrow Service Dept Wait for higher irradiation 075 Solar irradiation is not sufficient If this recurs at medium irradiation for inverter operation check the PV system design and correct the connection of PV inputs heck the PV m ign an rr 076 PV1 overload Check the syste desig and correct the connection of PV inputs heck the PV m ign an rr 077 DSP op oaa Check the PV system design and correct the connection of PV inputs SUNGROW 57 9 Troubleshooting and Maintenance User Manual 9 2 Maintenance 9 2 1 Routine Maintenance Items Methods Period Check the temperature and dust of the inverter Clean the inverter enclosure Check the humidity and dust of the environment Meanwhile check whether the filter function of the air inlet is ok Clean the air inlet and outlet Six months to a year it depends on the dust contents System clean in air when necessary Check whether there is crack of the fan blade Check whether there is any abnormal noise of the Fans Once a year fan turning Clean or replace the fans 9 2 2 Maintenance Instruction AA DANGER Disconnect the inverter from the grid first and then PV arrays before any maintenance work Lethal voltage still exists in the inverter Please wait at least ten minutes and then perform maintenance work Cleaning Fan There are four fans in the inverter for ventilation It is recommended that the
77. ter s installation country Each country code ee represents corresponding local protective allowed o adjice tolloang parameters that have been preset before delivery Improper settings may cause Before country setting there is warning screen l Step 6 Press Y to choose country code Confirm the settings by Pressing ENTER O GB O DE O FR O IT Refer to 10 11 Protective Parameters Setting for O ESO ATO AU O CZ country code explanation If the inverter is installed BE O DK O GR LO GR IS where the country code is not included please choose NL O PT O CHN O SE item Other and manually set the protective Other parameters If the country code is not set correctly during commissioning reset the protective parameters as dictated in 10 11 Protective Parameters Setting There may be faults if otherwise Step 7 Configure grid code on the display Press v to select grid code Confirm the selection by ferid codes Pressing ENTER Where LV indicates Low Voltage Grid Code MV indicates Middle Voltage O LV Grid Code When choose MV Press gt to enter the LVRT function selection Press Y to switch on or off the LVRT function and Press ENTER to confirm the selection MW LVRT ON SUNGROW 49 7 Commissioning User Manual If the Country selected does not have the Grid codes directives this configuration will not affect the following procedures However you may select t
78. th AC terminal at the underside of the unit Consider the following facts when select AC cables specifications and types The grid impedance of the AC cable must correspond to the specification to avoid unintended disconnection from the grid or derating of the output power SG10KTL SG12KTL lt SG15KTL x 3 rr SG20KTL The maximum cable lengths dependent from the cable cross section are shown in the following table avoiding power loss in cables of more than 1 of nominal inverter rating x Outer cable diameters Conductor Cross Section mm mm T ype necomime Recommended Range nded Range Value Value SG10KTL 4 8 37 4 0 S ne SGT2KTL 11AWG 8AWG 11AWG 4 8 37 n SG15KTL 11AWG 8AWG 6 0 9AWG 11 20 15 6 10 8 37 SG20KTL 1OAWG 7AWG 8AWG 15 25 20 Note for cable diameters 11 13 mm use external cable clamp Withstand ambient temperature Layouttype inside wall underground free air etc UV resistance and so on SUNGROW 31 6 Electrical Connection User Manual 6 3 2 Connecting Inverter to AC Grid Aa DANGER Danger to human life due to high voltage existing inside the inverter Make sure that all the AC cables to the inverter are not live before the electrical work Do not turn on the AC side circuit breaker until all inverter electrical connections are completed Prior to connecting to the utility grid veri
79. the PV strings for ground fault 2 If the fault occurs repeatedly contact Sungrow Service Dept 013 Inverter has checked that the grid is abnormal 1 Wait a moment for grid recovery 2 If the grid parameters exceed the permissible range of inverter protective parameters ask utility grid company for solution 3 If the grid frequency is within the permissible range contact Sungrow Service Dept 014 The average grid voltage over 10 minutes is not within the permissible range 1 Wait a moment for inverter recovery 2 If the fault occurs repeatedly contact Sungrow Service Dept 015 Grid impedance has exceeded inverter limit 1 Check AC cables for appropriate size 2 Wait a moment for inverter recovery 3 If the fault occurs repeatedly contact Sungrow Service Dept 016 The AC output overloads 1 Wait a moment for inverter recovering 2 If the fault occurs repeatedly contact Sungrow Service Dept 017 The inverter has checked that there is unbalance between the three phase voltages 1 Wait a moment for inverter recovering 2 If the fault occurs repeatedly contact Sungrow Service Dept 019 The bus voltage is temporarily high 1 Wait a moment for inverter recovering 2 If the fault occurs repeatedly contact Sungrow Service Dept 020 The bus voltage is high 1 Wait a moment for inverter recovery 2 If the fault occurs repeatedly contac
80. to the backplate fasten the inverter to the backplate with two M4x16 screws Fig 5 7 Attaching Inverter onto Backplate 26 SUNGROW 6 Electrical Connection Once the inverter is firmly attached to the appropriate location it can be connected to the PV power system A WARNING Improper operation during the wiring process can cause fatal injury to the operator or unrecoverable damage to the inverter Only qualified personnel can perform the wiring work Prior to any electrical connection keep in mind that inverter has dual power supplies It is mandatory for technical personnel to wear personal protective equipments helmet footwear and gloves during the electrical work 6 1 Terminals Description All electrical terminals are shown in Fig 6 1 Sungrow provides corresponding plug connectors in the scope of delivery as a result of convenient and safe connection without opening the lid SUNGROW 27 6 Electrical Connection User Manual Fig 6 1 Terminals Description Item Description AC AC terminals SG10KTL SG12KTL SG15KTL Amphenol C16_L SG20KTL Wieland RST50I5 RS485 IN RS485 OUT RS485communication terminals RJ45 DC1 DC2 DC terminals MC4 PV KST4 61I UR PV KBT4 6lI UR Integrated DC switch Second Protective Earth Terminals U1 OO IN 6 2 Simplified Electrical Connection Diagram Connecting inverter to the existing PV system includes connecting inverter to local gri
81. ture C Fig 2 8 Over temperature Derating Power Limit Setting User may allocate output power value of the inverter via LCD control panel refer to 10 10 Running Parameter Setting SUNGROW 13 3 Installation Flow Fig 3 1 shows the installation flow of inverter for installer Please follow these procedures Unpacking and Inspection Read User Manual Storage Install Immediately Yes y Mounting Location Selection Moving Inverter Mounting the Inverter Electrical Connection Check before Commissioning D gt Commissioning Troubleshooting sees gt Yes Emma Fig 3 1 Installation Flow Chart 14 SUNGROW User Manual Tab 3 1 Description of Installation Flow 3 Installation Flow Order Description Relerence Chapter 1 Unpacking and inspection Section 4 1 gt Read is manual especially the section on safety Chapter 1 instruction 3 Store the inverter unit if not install immediately Section 4 4 4 Choose the best installation site Section 5 1 5 Moving the inverter to installation site Section 5 2 6 Install the inverter against the chosen wall Section 5 3 4 Electrical connections include DC AC ground and Section communication optional connection 6 3 6 6 8 Examine before commissioning Section 7 1 9
82. urve PA COS b COS Upper PF Cap Lower Power Upper Power 100 P Pn P Pn Upper PF Cap Upper Power 1 Lower Power Powe Inductive Lower PF Ind 0 9 Lower PF Ind P2 Fig 10 3 Reactive Power Regulation Curve in Q P Mode Q U Mode when the country selection is not IT The reactive power ratio changes with the grid voltage If the country selection is not IT Italy after selecting Q U mode Press Y to enter the Run param Q U p Lower Q Sn Ind 050 0 sub menu Upper Q Sn Cap 050 0 For each item setting Press gt to move cursor right and Lower U Limit 095 0 Press Y to setthe appropriate value Upper U Limit 115 0 Confirm settings by Pressing ENTER Roncar i p Ul Limit U2 Limit Hysteresis Tab 10 6 Q P Mode Parameters Explanation Parameter Explanation Default Range Lower Q Sn Inductive Q Sn value of point P4 in the 35 0 50 Ind Q U mode curve Upper Q Sn Capacitive Q Sn value of point P1 in the 25 0 50 Cap Q U mode curve I TRE z 7 tower lini Grid voltage limit in of point P1 in the 80 80 90 Q U mode curve U DRE I Upper U Limit Grid voltage limit in of point P4 in the 115 110 115 Q U mode curve SUNGROW 73 10 Operation of LCD Display Panel User Manual Parameter Explanation Default Range See pee U1 Limit Grid voltage limit in of point P2 in the 95 95 100
83. ust be read and always kept in mind prior to any work All detailed work related safety warnings and notes will be specified at the critical points in corresponding chapter WARNING All installation and electrical work must only be performed by qualified personnel They have been trained specially already completely read through and understood the manual and other related documents been familiar with safety requirements for electrical system Technical personnel mentioned above may perform the following work Install the inverter onto the wall Connect the inverter into the PV power system Connectother devices into the PV power system Commission the inverter Maintain and service the inverter SUNGROW 1 1 Safety Instructions User Manual Before Installation There is a risk of injury due to improperly handling the device Always follow the instructions contained in the manual when moving and positioning the inverter The weight of the equipment can cause injuries serious wounds or bruise if improperly handled NOTICE The unit is thoroughly tested and strictly inspected before delivery Damage may still occur during shipping If there is visible damage to the packaging or the inner contents or if there is something missing contact the unit dealer During Installation 7 DANGER Prior to installing the inverter onto the wall it is crucial to make certain that the inv
84. verter Type Specification Recommended of AC Circuit Breaker SG10KTL 20A SG12KTL 25A SG15KTL 32A SG20KTL 40A NOTICE There are some points that are not allowed for the inverter 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 Residual Current Device With an integrated universal current sensitive residual current monitoring unit inside the inverter is able to distinguish the fault currents from normal capacitive leakage currents The inverter will disconnect from mains as soon as a fault current of more than limit value has been detected However if an external RCD or residual current breaker is mandatory the switch must trigger at a failure current of 300mA or higher Requirements of Multiple Inverters in Parallel Grid Connection If several inverters are operated in parallel connection to grid different requirements should be obeyed See technical information System Impedance and Stability Recommendation for Multiple String Inverters in Large PV Power Plant in the download area of Sungrow website 30 SUNGROW User Manual 6 Electrical Connection AC Cable Requirements The grid is connected with the inverter via 5 wires L1 L2 L3 N and PE Feed in power is always three phase via AC terminal at the bottom of the unit A five core AC waterproof direct plug in connector is supplied for AC connection which mates wi

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