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Deye SUN-20K-G02-LV User Manual
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Deye SUN-20K-G02-LV User Manual

Grid-tied pv string inverter
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Grid-tied PV String Inverter
SUN-20K-G02-LV
SUN-30K-G02-LV
User Manual
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SUN-25K-G02-LV

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Summary of Contents for Deye SUN-20K-G02-LV

  • Page 1 Grid-tied PV String Inverter SUN-20K-G02-LV SUN-25K-G02-LV SUN-30K-G02-LV User Manual...
  • Page 2 1. Introduction - 1 - ………………………………………………………… 1.1 Appearance introduction - 1 - …………………………………………… 1.2 Parts list - 2 - ………………………………………………………… 2. Safety warnings and instructions - 3 - ………………………………………… 2.1 Safety signs - 3 - ……………………………………………………… 2.2 Safety Guide - 3 - ………………………………………………………...

  • Page 3: About This Manual

    1.1 Appearance Introduc�on On-grid inverter can convert solar panel DC power into AC power which can directly input to the grid. Its appearance is shown below. These models contain SUN-20K-G02-LV, SUN-25K-G02-LV, SUN-30K-G02-LV, SUN-35K-G02-LV. The following is collec�vely referred to as “inverter”.
  • Page 4 1.2 Parts list Please check the following table, to see whether all the parts are included in the package： Normal Alarm Moun�ng stainless steel Grid-�ed PV String Inverter Wall moun�ng bracket x 1 screws M4×12 x 10 DC power connectors (including Inserted spring) Stainless steel an�-collision 20Kw, 33Kw, 35Kw x 8 pairs...
  • Page 5 2. Safety warnings and instruc�ons Improper use may result in poten�al electric shock hazards or burns. This manual contains important instruc�ons that should be followed during installa�on and maintenance. Please read these instruc�ons carefully before use and keep them for future reference. 2.1 Safety signs Safety symbols used in this manual, which highlight poten�al safety risks and important safety informa�on, are listed as follows:...
  • Page 6 Shock Hazard: When PV module is exposed to sunlight, the output will generate DC voltage. Prohibit touching to avoid shock hazard. Shock Hazard: While disconnect the input and output of the inverter for maintenance, please waits for at least 5 mins un�l the inverter discharge the remnant electricity. High Temperature Hazard: Local temperature of inverter may exceed 80℃...
  • Page 7 3. Opera�on Interface 3.1 Interface View Normal Alarm Pic 3.1 Front panel display 3.2 Status Indicator The inverter panel has 4 indicators, the le� one is dc output indicators, green indicates normal DC input. Beside is the AC indicator, green indica�ng normal ac connec�on. Beside the AC indicator is the opera�ng indicator, green indica�ng normal output.
  • Page 8 3.3 Bu�ons There are four bu�ons on the inverter panel： Above is Up and increase bu�on(UP), Below is down and decrease bu�on(DOWN), Le� is ESC bu�on(ESC), Right is Enter bu�on(ENTER). Achieving below func�ons by the four bu�ons： ● Page turning (use UP and DOWN bu�on); ●Modify adjustable parameters (use ESC and ENTER bu�on).
  • Page 9 4. Product installa�on 4.1 Select installa�on loca�on To select a loca�on for the inverter, the following criteria should be considered: WARNING: Risk of fire ● Do not install the inverter in areas containing highly flammable materials or gases. ● Do not install the inverter in poten�ally explosive atmospheres. ●...
  • Page 10 ● Install on a wall or strong structure capable of bearing the weight. ● Install ver�cally with a maximum incline of +/-15°. If the mounted inverter is �lted to an angle greater than the maximum noted, heat dissipa�on can be inhibited, and may result in less than expected output power.
  • Page 11 ≥500mm ≥500mm Pic 4.3 Installa�on Gap 4.2 Inverter of inverter Pic 4.4 Mou�ng bracket dimensions - 09 -...
  • Page 12 4.3 Inverter Installa�on The inverter should be 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.
  • Page 13 5 Electrical Connec�on 5.1 DC input terminal connec�on 1. Switch the Grid Supply Main Switch(AC)OFF. 2. Switch the DC lsolator OFF. 3. Assemble PV input connector to the inverter. Safety Hint: Please don’t connect PV array posi�ve or nega�ve pole to the ground, it could cause serious damages to the inverter.
  • Page 14 The steps to assemble the DC connectors are listed as follows: a) Strip off the DC wire about 7mm, disassemble the connector cap nut (see picture 5.3). Pic 5.3 Disassemble the connector cap nut b) Crimping metal terminals with crimping pliers as shown in picture 5.4. Pic 5.4 Crimp the contact pin to the wire 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.
  • Page 15 d) Finally insert the DC connector into the posi�ve and nega�ve input of the inverter, shown as picture 5.6 Pic 5.6 DC input connec�on Warning: Sunlight shines on the panel will generate voltage, high voltage in series 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.
  • Page 16 AC wire produc�on method is the same as that of 5.2.1. AC wire installa�on method: 1) Remove the 8 fixing screws on the AC junc�on box of the inverter as shown in Pic 5.7. A�er removing the junc�on box, you can see the terminals of the inverter. The default is 5 digits as shown in Pic 5.8.
  • Page 17 3) Screw the AC connec�on cover back to the shell and �ghten all the screws to �ghten the waterproof protec�on connector, as shown in Pic 5.11 Pic 5.11 Tighten the AC junc�on box 5.2.3 Recommended current protector specifica�ons Inverter Rated voltage Rated output power（KW）...
  • Page 18 5.3 Connec�on of the ground line Good grounded is important for resist the surge voltage shock and improve EMI's performance. So before the connec�on of AC, DC, communica�on connec�ons, inverter needs to ground first. For a single system, just ground the PE cable; For mul�ple machine systems, all PE cables of the inverter need to be connected to the same grounding copper platoon to ensure the equipotent connec�on.
  • Page 19 Phone GPRS Router Web Server WIFI Pic 5.13 Internet monitoring solu�on 5.4.1 Installa�on of datalogger When the inverter is out of the factory, the loca�on of the installa�on of datalogger is sealed by a sealed plate as shown in Picture 5.14. When installing the datalogger, remove the sealing plate, replace it with the sealing plate with square hole in the accessories, and �ghten the screws.

  • Page 20: Start Up And Shut Off

    5.4.2 Configura�on of datalogger For the configura�on of datalogger, please refer to illustra�ons of the datalogger. 6. Start up and Shut off Ensure that the inverter meets the following condi�ons before star�ng the inverter, otherwise it may cause fire or damage to the inverter without quality assurance, at the same �me the situa�on on our company does not undertake any responsibility.
  • Page 21 7 Zero export func�on via SUN limiter The inverter has external zero export func�on. This func�on is op�onal. It can collect counter- current power 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.
  • Page 22 We recommend installing an AC switch between the inverter outlet and the u�lity grid, the specs of the AC switchis determined by the load capacity. The AC switch we recommend to connect to the inverter output refer to Table 5.2. L1(L) Solar panels L1(K)
  • Page 23 Pic 7.3 Clamp Sensor Load Pic 7.4 Clamp Sensor internal arrow (3) A�er you finish the installa�on in process 1 and 2, connect the N line (N) to the N terminal of the limiter and �ghten the line. (4) Connect 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.
  • Page 24 Pic 7.5 Waterproof terminal limiter Pic 7.6 Connect SUN limiter to inverter Pic 7.7 Connect terminal to inverter - 22 -...
  • Page 25 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. Press the bu�on of the limiter to the se�ng interface. Long press the bu�on to switch the an�-backflow mode.
  • Page 26 Grid Ua : 234.5V Ia : 0.0A Utility Power: Grid Freq : 50.00Hz Pic 7.9 Limiter func�on turn on [u�lity power] showing pos�ve means grid power is providing power to the load consuming energy, and there is no PV energy flow to grid. If [u�lity power] shows nega�ve, which means there’s excess PV energy flows to grid or current transformer arrow direc�on is in wrong direc�on.
  • Page 27 1 2 3 4 5 6 7 8 Eastron (1,2,3,4) (5,6,7,8) B A G RS 485 RS 485 B RS 485 A Pic 7.10 Eastron meter Eastron SDM630-Modbus V2 Inverter Solar Panel array RS485-1 RS485-2 RS232/485 limiter1 limiter2 AC Breaker RS 485 Male connector...
  • Page 28 9 1 0 11 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 Eastron 15 16 17 18 19 20 1 2 3 4 Grid voltage Auxiliary Current inputs sampling power supply 1 4 1 3 1 2 RS 485 RS 485 A RS 485 B...
  • Page 29 Three-Phase Smart Meter (1,4,7,10) (3,6,9,10) RS 485 Pic 7.14 CHINT meter CHNT DTSU666 Inverter Solar Panel array RS485-1 RS485-2 RS232/485 limiter1 limiter2 AC Breaker RS 485 Male connector Family load L1 L2 L3 N VCC_5V 485_B RS 485 Female connector Three-Phase Smart Meter meter 485_A...
  • Page 30 3. Press Enter bu�on on the LCD panel in the main interface into the menu op�ons, select [parameter se�ng] to enter setup submenu, and then select [run param], at this �me please input the default password 1234 through pressing the bu�on [up down, enter], enter the opera�on parameter se�ng interface, shown as picture 7.16.
  • Page 31 7.5 Notes while using zero export func�on For your safety and the opera�on of limiter func�on of the inverter, we put forward the following sugges�ons and precau�ons: Warning: Under zero export mode we strongly recommend that the two 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.
  • Page 32 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. - 30 -...

  • Page 33: General Opera�On

    8. General Opera�on During normal opera�on, the LCD shows the current status of the inverter, including the current power, total genera�on, a bar chart of power opera�on and inverter ID, etc. Press the Up key and the Down key to see the current DC voltage, DC current, AC voltage, AC current, inverter radiator temperature, so�ware version number and Wifi...
  • Page 34 8.1 The ini�al interface From the ini�al interface, you can check power, day power, total power, invertert ID , model and �me. 0.0Kw SN-01 2019-05-11 08:00:00 29.86Kw P - 45 Kw Power: 295kWh Day : 25 MWh Total : State : Standby ID:1601012001 Pic 8.1 The ini�al interface...
  • Page 35 Grid Ua : 234.5V Ia : 0.0A Grid Freq : 50.00Hz Pic 8.3 AC running state informa�on You can check the three phase voltage, current, and grid frequency. Total DC Power: 3.602W Ver2184 Ver3997 Pic 8.4 Inverter firmware version You can check the inverter LCD so�ware Ver0166 and Control So�ware Version Ver1860. There are two black spot in the bo�om right corner.
  • Page 36 8.1.1 Main Menu There are four submenu in the Main Menu. MENU Statistics 《 Fault Record ON/OFF Setup PV VA Pic 8.5 Main Menu 8.2 Sta�s�cs informa�on There are five submenu in the sta�s�cs. MENU》Statistics E-Day E-History E-Month Test Data 《...
  • Page 37 MENU》Statistics》E-Day <2019-05-11> 10MWh Pic 8.7 E-Day MENU》Statistics》E-Month 2019-04 1-10 20 31 <> 10MWh Pic 8.8 E-Month MENU》Statistics》E-Year <2019> 200KWh Pic 8.9 E-Year - 35 -...

  • Page 38: Fault History

    MENU》Statistics》E-History <2015-2024> 5KWh Pic 8.10 E-History This informa�on is for technician’s reference. 19186 11126 2057 19198 11140 137 : 2145 24362 16666 2248 1497 9119 2927 24362 12218 2065 2653 Pic 8.11Test Data 8.3 Fault Record Only can keep four fault record in the menu include �me, customer can deal with it depends on the error code.
  • Page 39 8.4 ON/OFF se�ng MENU》ON/OFF Turn ON Turn OFF 《 Pic 8.13 ON/OFF se�ng Into each submenu through cursor. MENU》ON/OFF》Turn ON 《 Turn ON Cancel Pic 8.14 ON set MENU》ON/OFF》Turn OFF 《 Turn OFF Cancel Pic 8.15 OFF set - 37 -...
  • Page 40 8.5 Parameter se�ng Se�ng includes system param, run param, protect param, comm.. param. All of these informa�on for maintenance reference. MENU》Setup System Param 《 Param Protect Param Comm. Param Pic 8.16 Se�ng 8.5.1 System Param System Param includes �me set, language set, display set and factory date reset. MENU》Setup》System Param Time Set 《...
  • Page 41 8.5.1.2 Time Set Time Set 2019-05-11 09:36:30 Cancel Pic 8.18 System Param 8.5.1.3 Language Set Lauguage Set 简体中文 English 《 Angielski Pic 8.19 Lauguage set 8.5.1.4 Display Set Display Set Brightness Delay 《 Delay time 05S Cancel Pic 8.20 Display set - 39 -...
  • Page 42 8.5.1.5 Factory data reset Factory data reset Confirm to reset 《 Cancel Pic 8.21 Factory data reset set 8.5.1.6 Se�ng Restor Setting Restor Confirm to restore 《 Cancel Pic 8.22 Factory data reset set 8.5.2 Running Param Note: Password required-- only for access-authorized engineer. Un-authorized access may avoid the warranty.
  • Page 43 PassWord * * * * Pic 8.22 Password MENU》Setup》Run Param ActiveP 100% Island ReactiveP 0.0% Meter 1.000 Limiter Fun_ISO ON E_Coef 0.00 Fun_RCD ON Meter_CT SelfCheck 10S MPPT Num Cancel Pic 8.23 Running Param Note: Engineer Only. We will set the param depends on the safety requirements, so customers don't need to reset it.
  • Page 44 8.5.3 Protect Param MENU》Setup》Protect Param INMETRO UTE_C15 EN50549 RD_1699 EN50438 CEI_0_21 IEC61727 G98_G99 CUSTOM 《 AS4777 VED_4105 Reserved Cancel Pic 8.24 Protect Param Note: Engineer only. 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...
  • Page 45 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...

  • Page 46: Repair And Maintenance

    8.5.4 Comm. Param MENU》Setup》Comm.Param Address : 01 《 BaudRate : 9600 Pic 8.26 Communica�on param 9. Repair and Maintenance String type inverter doesn’t need regular maintenance. However, debris or dust will affect heat sink’s thermal performance. It is be�er to clean it with a so� brush. If the surface is too dirty and affect the reading of LCD and LED lamp, you can use wet cloth to clean it up.
  • Page 47 Check the solar panel output connec�on. Failure in reading memory (EEPROM). Restart the inverter if the Read the memory error fault s�ll exists, contact your installer or Deye service. Failure in wri�ng memory (EEPROM). Restart the inverter if the Write the memory error fault s�ll exists, contact your installer or Deye service.
  • Page 48 The DC busbar is unbalanced 2. Restart the inverter, if the fault s�ll exists, contact your installer or Deye service. DC end insula�on error Hardly appear the code. Never ever happened so far. Inverter 1 DC high fault Hardly appear the code.
  • Page 49 1. Check AC current sensor and its circuit. AC over current(one cycle) 2. Restart the inverter, if the fault s�ll exists, contact your installer or Deye service. DC over current Hardly appear the code. Never ever happened so far. Check the AC voltage protec�on se�ng. And Check if the AC AC Line W,U over voltage cable is too thin.Check the voltage difference between LCD and...
  • Page 50 Check if the inverter is its right model. IGBT heat sink high temperature 2. Restart the inverter, if the fault s�ll exists, contact your installer or Deye service. Table10.1 Error codes and their solu�ons Note: If your string inverter has any of the fault informa�on shown in Table 10-1, and when you reset the machine and s�ll don’t solve the problem, please contact our...
  • Page 51 11.Specifica�on Model SUN-20K SUN-25K SUN-30K -G02-LV -G02-LV -G02-LV Input Side Max.DC Power(kW) 32.5 Max.DC Input Voltage(V) Start-up DC Input Voltage(V) MPPT Opera�ng Range(V) 200~700 Max.DC Input Current(A) 40+40 40+40+40 40+40+40+40 Max. Short Circuit Current (A) 60+60 60+60+60 60+60+60+60 Number of MPPT/Strings per MPPT Output Side Rated Output Power(kW) Max.Ac�ve Power(kW)
  • Page 52 Add: No.26-30, South Yongjiang Road, Beilun, 315806, Ningbo, China Tel: +86 (0) 574 8622 8957 Fax: +86 (0) 574 8622 8852 E-mail: service@deye.com.cn Web: www.deyeinverter.com 502012753 Ver: 2.1, 2021-6...

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