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Grid-tied PV String Inverter

User Manual

SUN-40K-G-LV

SUN-45K-G-LV

SUN-50K-G-LV

SUN-35K-G-LV

Summary of Contents for SUN-35K-G-LV

Page 1: ...Grid tied PV String Inverter User Manual R SUN 40K G LV SUN 45K G LV SUN 50K G LV SUN 35K G LV ...

Page 2: ...off 6 1 Start up the inverter 6 2 Shut off the inverter 18 18 18 7 Limiter function 19 7 1 Limiter function wiring diagram 7 2 Connect the limiter to inverter 19 20 23 7 4 Zero export function Option 7 3 Debugging Limiter 24 31 44 44 7 5 Notes while using zero export function 29 29 8 1 The initial interface 8 2 Statistics information 32 34 8 3 Fault Record 8 4 ON OFF setting 36 37 8 5 Parameter se...

Page 3: ...al The manual mainly describes the product informa on guidelines for installa on opera on and maintenance The manual cannot include complete informa on about the photovoltaic PV system How to Use This Manual Read the manual and other related documents before performing any opera on on the inverter Documents must be stored carefully and be available at all mes Contents may be periodically updated o...

Page 4: ...teel screws M4 12 x 10 Grid ed PV String Inverter x 1 DC power connectors including Inserted spring x 16 pairs Wrench x 1 User manual User manual x 1 Installa on screws M5 12 x 2 SUN limiter op onal x 1 Sensor Clamp op onal x 3 Meter op onal x 1 Wi Fi Plug op onal x 1 Three Phase Smart Meter SET ESC 19 20 Stainless steel an collision bolt M12 80 304 x 3 ...

Page 5: ...uc ons which if not correctly followed could result in burns Safety Hint Note symbol indicates important safety instruc ons which if not correctly followed could result in some damage or the destruc on of the inverter Warning Warning symbol indicates important safety instruc ons which if not correctly followed could result in serious injury or death Shock Hazard Prohibit disassembling inverter cas...

Page 6: ...3 Local temperature of the inverter may exceed 80 while under opera ng Do not touch to avoid ge ng injured 4 All electrical installa on must be in accordance with local electrical standards and achieved permission of local power company 5 Please take appropriate an sta c measure 6 Please install where children can not touch Shock Hazard When PV module is exposed to sunlight the output will generat...

Page 7: ...ica ng normal ac connec on Beside the AC indicator is the opera ng indicator green indica ng normal output The right indicator is alarm red indicates alarming Explanation Inverter detects DC input Low DC input voltage Grid Connected Grid Unavailable Under normal opera ng Stop opera ng Detected faults or report faults Under normal opera ng Indicator status DC AC NORMAL ALARM on oﬀ on oﬀ on oﬀ on oﬀ...

Page 8: ...ght is Enter bu on ENTER Achieving below func ons by the four bu ons Three phase string inverter use 256 128 dot forma on display Display below content Page turning use UP and DOWN bu on Modify adjustable parameters use ESC and ENTER bu on 3 4 LCD Display Inverter opera on status and informa on Opera ng informa on Warning message and malfunc on display ...

Page 9: ...freely To avoid overhea ng always make sure the ﬂow of air around the inverter is not blocked Exposure to direct sunlight will increase the opera onal temperature of the inverter and may cause output power limi ng It is recommended that inverter installed to avoid direct sunlight or raining To avoid overhea ng ambient air temperature must be considered when choosing the inverter installa on loca o...

Page 10: ...l more than one inverter must leave at least 500mm gap between each inverter And each inverter must be at least 500mm above and below And must install the inverter at the place where children cannot touch Please see picture 4 3 Consider whether the installa on environment is helpful to see the inverter LCD display and indicator status clearly Must oﬀer a ven late environment if inverter installed ...

Page 11: ... 09 500mm 500mm Pic 4 4 Mou ng bracket dimensions 4 2 Inverter of inverter Pic4 3 Installa on Gap ...

Page 12: ... mounted in a ver cal posi on The steps of moun ng are as follows 1 For brick walls the posi on of the holes should be suitable for the expansion bolts 2 Make sure the bracket is horizontal and the moun ng holes are in the correct points Drilling the holes on the wall according the marks 3 Using the expansion bolts to ﬁx the bracket to the wall ...

Page 13: ...use serious damages to the inverter Safety Hint Before connec ng inverter please make sure the PV array open circuit voltage is within the 500V of the inverter Safety Hint Before connec on please make sure the polarity of the output voltage of PV array matches the DC and DC symbols Safety Hint Please use approved DC cable for PV system Pic5 1 DC connector MC4 Pic5 2 DC connector MC4 Cable type Ran...

Page 14: ...5 3 b Crimping metal terminals with crimping pliers as shown in picture 5 4 c insert the contact pin to the top part of the connector and screw up the cap nut to the top part of the connector as shown in picture 5 5 Pic5 3 Disassemble the connector cap nut 7mm 7mm Pic5 4 Crimp the contact pin to the wire Pic5 5 connector with cap nut screwed on ...

Page 15: ...es may cause danger to life Therefore before connec ng the DC input line the solar panel needs to be blocked by the opaque material and the DC switch should be OFF otherwise the high voltage of the inverter may lead to life threatening condi ons Warning The AC cable line L1 is connected to socket 1 L2 is connected to socket 2 L3 is connected to socket 3 the PE line is connected to the earth and do...

Page 16: ...shown in Pic 5 8 2 Connect the cable through the junc on box waterproof jacket and insert into the terminal The picture shows the connec on mode of three phase lines connected to the junc on box ground wire screwed on the inverter shell Pic5 9 and use hexagon screwdriver to presses the wiring harness to the connect terminal as shown in Pic5 10 5 7 AC junc on box 5 8 AC terminal 5 9 AC cable connec...

Page 17: ...d current protector speciﬁca ons 5 11 Tighten the AC junc on box Table 5 3 Recommended current protector speciﬁca ons Inverter SUN 40K G LV SUN 45K G LV SUN 50K G LV Rated voltage 127 127 127 Rated output power KW 40 45 50 Current protection device A 115 130 140 SUN 40K G LV SUN 45K G LV SUN 50K G LV 127 127 127 40 45 50 115 130 140 SUN 35K G02 LV 35 127 100 ...

Page 18: ...he ground line Inverter has the func on of wireless remote monitoring inverter The inverter has Wiﬁ func on and Wiﬁ Plug in the accessories is used to realize the connec on between the inverter and the network The opera on installa on networking APP download are detailed in the WIFI PLUG instruc ons Figure 5 13 is the Internet monitoring solu on 5 4 Inverter monitoring connec on 5 12 The installa ...

Page 19: ... in the accessories and ghten the screws Insert the Wi Fi Plug into the interface and ﬁx it with a screw The conﬁgura on of the Wi Fi Plug needs to be performed a er various electrical connec ons have been completed and the inverter DC power on When the inverter is on the DC power it is determined whether the Wi Fi Plug is normally electriﬁed The LED light shines out of the shell 5 4 1 Installa on...

Page 20: ...w below steps 1 First switch on the AC breaker 2 Turn on the DC switch of the PV module and if the panel provides suﬃcient star ng voltage and power the inverter will start 3 When the AC voltage and DC voltage are normal the inverter start up is ready to begin The inverter will ﬁrst check the internal parameters and the grid parameters while the liquid crystal will show that the inverter is self c...

Page 21: ...r to control the output power of the inverter so that the power of inverter and load can be oﬀset and the excess power will not be fed back to the grid If you purchase the inverter with zero export func on an external zero export device SUN limiter or energy meter will be included in the package which is necessary for the func on The SUN limiter shows as Pic 7 1 You can see corresponding line mark...

Page 22: ...k of electric shock Choose one wire from the bo om of the three phase DC switch any phase of U V W to connect with L1 terminal then ghten the line with a screwdriver 2 Connect SUN limiter to clamp senor Clamp senor can measure the current of the AC side it should be connected to the front side of the load domes c appliance ect to achieve this func on Only when the SUN limiter collects the voltage ...

Page 23: ...ect the control line There are two numbers 1 and 2 on the interface of SUN limiter and the same on the waterproof terminal of the inverter Twist the waterproof terminal and connect the red line to number 1 and black line to number 2 shown as the picture A er that connect the terminal to the interface of the SUN limiter The other side of the line should be connected to the control terminal Load ...

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Page 25: ...select run param at this me please Input the default password 1234 through pressing the bu on up down conﬁrm enter the opera on parameter se ng interface Shown as ﬁgure Pic 7 8 Zero export func on via SUN limiter se ng interface 7 3 Debugging Limiter Turn on the an backﬂow func on of the inverter refer to the manual then turn on the limiter s power supply and last turn on the inverter MENU Setup R...

Page 26: ... Eastron SDM630 Modbus V2 which is able to measure the Max 100A current directly More details please refer to Pic 7 10 7 11 For the Eastron SDM630 MCT 40mA it needs external CT to measure the current The CT power range is from 5A 2000A More details about the Eastron SDM630 MCT please refer to Pic 7 12 7 13 Also the CHNT meter DTSU666 is supported it can measure the Max 80A current directly More de...

Page 27: ...8 Grid Pic 7 11 Connec on diagram of Eastron meter Solar Panel array Inverter meter AC Breaker Grid RS485 Communication Family load L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N N L3 L2 L1 VCC_5V 485_B 485_B 485_A 485_A GND GND RS 485 Male connector RS 485 Female connector 1 2 3 4 5 6 7 8 limiter1 limiter2 RS485 1 RS485 2 RS232 485 ...

Page 28: ...er2 RS485 1 RS485 2 RS232 485 Pic 7 13 Connec on diagram of Eastron meter Solar Panel array Inverter meter AC Breaker Grid RS485 Communication Family load N L3 L2 L1 LA NA S2 S1 S2 S1 S2 S1 GND B A CT2 CT1 CT3 White line black line White line black line White line black line L1 L2 L3 N N L3 L2 L1 VCC_5V 485_B 485_A 485_A 485_B GND GND RS 485 Male connector RS 485 Female connector 1 2 3 4 1 2 3 4 5...

Page 29: ...ESC 1 7 4 10 25 24 3 9 6 10 RS 485 CHNT DTSU666 3 6 9 10 1 4 7 10 Pic 7 15 Connec on diagram of CHINT meter Solar Panel array Inverter meter AC Breaker Grid RS485 Communication Family load 1 7 4 10 25 24 3 9 6 10 Three Phase Smart Meter SET ESC L1 L2 L3 N L1 L2 L3 N N L3 L2 L1 VCC_5V 485_B 485_B 485_A 485_A GND RS 485 Male connector RS 485 Female connector 1 2 3 4 limiter1 limiter2 RS485 1 RS485 2...

Page 30: ...y choosing up down bu on please press enter bu on to conﬁrm when se ng done 5 Move the cursor to OK press enter to save the se ngs and exit the running parameters page otherwise the se ngs are invalid 6 If set up successfully you can return to the menu interface and display the LCD to home page by press the up down bu on If it displays meter power XXW the zero export func on se ng is completed Sho...

Page 31: ...wo PV arrays are formed by the same number of PV panels of the same size which will make the inverter more responsive to limit the power 7 6 How to browse the load power of your PV grid e plant on monitoring pla orm If you want to browse load power of the system and how much energy KWH does it export to grid inverter output power is used to power the load ﬁrstly and then the surplus energy will fe...

Page 32: ... 30 And then choose your system type as Self consump on Secondly go to plant page if it shows the PV power load power and grid power which means the conﬁgura on is correct ...

Page 33: ... key to see the current DC voltage DC current AC voltage AC current inverter radiator temperature so ware version number and Wiﬁ connec on state of the inverter 8 General Opera on System param Run param Protect param Comm param E Month E Day E Year E History Test Data Start Statistics Fault Record ON OFF Setup PV VA LCD main menu AC output data Interface DC input data Pic 8 1 LCD opera on ﬂow char...

Page 34: ... UP or Down you can check inverter DC voltage DC current AC voltage AC current inverter temperature so ware version informa on You can check the PV informa on the number of strings input MPPT voltage and MPPT current Power Day Total State Standby 0 29 86Kw P 45 Kw 295kWh 25 MWh 6 12 18 24 ID 1601012001 0 0Kw SN 01 2019 05 11 08 00 00 PV1 V 349 9V I 10 3A P 3 6KW PV2 V 313 0V I 8 3A P 2 6KW RUN Inp...

Page 35: ...n the bo om right corner The ﬁrst ﬂash means inverter is communica ng with LCD The second ﬂash means LCD is communica ng with wiﬁ plug Ua 234 5V Ia 0 0A Grid Freq 50 00Hz RUN Grid Pic 8 4 Inverter ﬁrmware version Pic 8 5 Meter power and load power Meter Power 0W Load Power 0W Day Total ImpEp 0 00kWh 0 00kWh ExpEp 0 00kWh 0 00kWh LoadEp 0 00kWh 0 00kWh PARAMETR Meter SN 0 Total DC Power 3 602W Ver2...

Page 36: ...1 1 Main Menu 8 2 Sta s cs informa on Pic 8 5 Main Menu Pic 8 6 Sta s cs There are ﬁve submenu in the sta s cs Into each submenu through cursor E Day E History E Month E Year Test Data MENU Statistics Statistics Fault Record ON OFF Setup PV VA MENU ...

Page 37: ...8 E Month Pic 8 9 E Year 2019 04 1 10 20 31 MENU Statistics E Month 01 10MWh 02 03 04 05 06 07 08 09 10 2019 MENU Statistics E Year 01 200KWh 02 03 04 05 06 07 08 09 10 11 12 2019 05 11 MENU Statistics E Day 0 10MWh 6 12 18 24 ...

Page 38: ...ian s reference Only can keep four fault record in the menu include me customer can deal with it depends on the error code Pic 8 10 E History Pic 8 11Test Data PV1 PV2 HV GFD DiL AVL 126 1k2 19186 19198 24362 9119 36 2 287 6 1k3 1k4 1k5 1k6 vHV BSn ofA ofB 11126 11140 16666 2927 ofC 138 139 140 2057 2248 137 2145 1497 0 24362 12218 2065 2653 2015 2024 MENU Statistics E History 15 5KWh 16 17 18 19 ...

Page 39: ... ON OFF se ng Pic 8 13 ON OFF se ng MENU ON OFF Turn ON Turn OFF Into each submenu through cursor Pic 8 14 ON set MENU ON OFF Turn ON Turn ON OK Cancel Pic 8 15 OFF set MENU ON OFF Turn OFF Turn OFF OK Cancel ...

Page 40: ...e ng MENU Setup System Param Run Param Param Protect Param Comm Pic 8 17 System Param MENU Setup System Param Time Set Language Set Display Set Factory data reset Setting Restore 8 5 Parameter se ng Se ng includes system param run param protect param comm param All of these informa on for maintenance reference ...

Page 41: ...et 2019 05 11 09 36 30 OK Cancel Pic 8 18 System Param 8 5 1 3 Language Set Pic 8 19 Lauguage set 8 5 1 4 Display Set Pic 8 20 Display set Display Set Brightness Delay Delay time 05S OK Cancel Lauguage Set 简体中文 English Angielski ...

Page 42: ...a reset Confirm to reset Cancel 8 5 1 6 Se ng Restor Pic 8 22 Factory data reset set Setting Restor Confirm to restore Cancel 8 5 2 Running Param Note Password required only for access authorized engineer Un authorized access may avoid the warranty The ini al password is 1234 ...

Page 43: ...omers don t need to reset it The password is same as 8 4 Running param Pic 8 22 Password PassWord Pic 8 23 Running Param MENU Setup Run Param OK Cancel ActiveP 100 ReactiveP 0 0 PF 1 000 Fun_ISO ON Fun_RCD ON SelfCheck 10S Island ON Meter OFF Limiter OFF E_Coef 0 00 Meter_CT 0 MPPT Num 3 ...

Page 44: ...ED_4105 UTE_C15 RD_1699 CEI_0_21 G98_G99 AS4777 Reserved CUSTOM AC OverVoltage 1 270 0V Tripping Time 1 100ms AC OverVoltage 2 300 0V Tripping Time 2 100ms AC OverVoltage 3 300 0V Tripping Time 3 100ms CUSTOM AC LowVoltage 1 176 0V Tripping Time 1 100ms AC LowVoltage 2 176 0V Tripping Time 2 100ms AC LowVoltage 3 176 0V Tripping Time 3 100ms ...

Page 45: ...eq 47 50Hz Rated Voltage 220 380V CUSTOM AC OverFreq 1 52 00Hz Tripping Time 1 2000ms AC OverFreq 2 53 00Hz Tripping Time 2 500ms AC OverFreq 3 54 00Hz Tripping Time 3 200ms CUSTOM AC LowFreq 1 48 00Hz Tripping Time 1 2000ms AC LowFreq 2 47 00Hz Tripping Time 2 500ms AC LowFreq 3 46 00Hz Tripping Time 3 200ms ...

Page 46: ...essage In this case the inverter may stop feeding energy into the grid The alarm descrip on and their corresponding alarm messages are listed Table 10 1 Warning When the device is running the local temperature is too high and the touch can cause burns Turn oﬀ the inverter and wait for it cooling then you can clean and maintain Warning No solvent abrasive materials or corrosive materials can be use...

Page 47: ...ontact your installer F13 Working mode changed Grid mode changed 1 Lost of one phase or AC voltage detec on circuit or relays not closed old inverter not have relays detec on func on 2 Restart the inverter if the error s ll exists please contact your installer F20 DC over current fault of the hardware 1 Check whether solar panel output current is within the allowed range 2 Check DC current sensor ...

Page 48: ...er F30 AC main contactor failure 1 Check relays and AC voltage of relays 2 Check relays driver circuit Check if the so ware is not suitable for this inverter Old inverter not have relays detec on func on 3 Restart the inverter if the fault s ll exists contact your installer F23 AC leakage current is transient over current 1 This fault means the leakage current is above 30mA suddenly Check whether ...

Page 49: ...on se ng And Check if the AC cable is too thin Check the voltage diﬀerence between LCD and meter F42 AC Line W U low voltage Check the AC voltage protec on se ng Check the voltage diﬀerence between LCD and meter Also need to check whether AC cables are all ﬁrmly and correctly connected F44 AC Line V W low voltage Check the AC voltage protec on se ng Check the voltage diﬀerence between LCD and mete...

Page 50: ...k temperature sensor Check if ﬁrmware is suitable for the hardware Check if the inverter is its right model 2 Restart the inverter if the fault s ll exists contact your installer F59 AC grid V over current Hardly appear the code Never ever happened so far F60 AC grid W over current Hardly appear the code Never ever happened so far F61 Reactor A phase over current Hardly appear the code Never ever ...

Page 51: ... Grid Voltage Range V Rated Grid Frequency Hz Opera ng Phase Rated AC Grid Output Current A Max AC Output Current A Output Power Factor 0 5 57 62 98 7 98 3 45 45 45 45 127 220 176 242 this may vary with grid standards 60 50 Op onal Three phase 0 8 leading to 0 8 lagging 2 Grid Current THD 700 575 297 Transformerless Size mm W H D 60 Weight kg Topology 1W Night Internal consump on 25 65 Opera ng te...

Page 52: ...Add No 26 30 South Yongjiang Road Beilun 315806 Ningbo China Fax 86 0 574 8622 8852 Tel 86 0 574 8622 8957 E mail service deye com cn Web www deyeinverter com 502012754 Ver 2 1 2021 6 ...

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