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Deye SUN-18K-G02 User Manual
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Deye SUN-18K-G02 User Manual

Grid-tied pv string inverter
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Grid-tied PV String Inverter
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Summary of Contents for Deye SUN-18K-G02

  • Page 1 Grid-tied PV String Inverter User Manual...
  • Page 2 1. Introduction - 01 - ………………………………………………………… 1.1 Appearance Introduction - 01 - ………………………………………… 1.2 Parts list - 02 - ………………………………………………………… 2. Safety warnings and instructions - 03 - ……………………………………… 2.1 Safety signs - 03 - ………………………………………………………… 2.2 Safety instructions - 03 - …………………………………………………...

  • Page 3: Introduc�On

    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-18K-G02, SUN-20K-G02, SUN-25K-G02. The following is collec�vely referred to as “inverter”.

  • Page 4: Parts List

    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 x1 screws M4×12 DC power connectors (including Inserted spring) Stainless steel an�-collision 18Kw, 20Kw x 4 pairs AC power connectors x1...
  • 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 Symbols 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 There are four LED status indicator lights in the front panel of the inverter.Please see table 3.1 for details. Indicator status Explanation Inverter detects DC input ●DC off...
  • 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 Installa�on The inverter is designed according to the wall mounted type installa�on, please use the wall mounted (the brick wall of the expansion bolt) when installing. Anchoring Moun�ng bracket Stainless steel screws Inverter Pic 4.4 Inverter Installa�on - 09 -...
  • Page 12 Procedure shows below: 1. Locate on the appropriate wall according to the bolt posi�on on the moun�ng bracket, then mark the hole. On the brick wall, the installa�on must be suitable for the expansion bolt installa�on. Pic 4.5 Inverter hanging plate installa�on 2.
  • 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 The AC output connector is divided into three parts: matching socket, sleeve and sealing- sleeve, as shown in picture 5.7, the steps are as follows: Step 1: Remove the cable sealing ring and sleeve in sequence from the AC connector. Step 2: Use strippers to strip the protec�ve sheath and insula�on layer of the AC cable to the right length, as shown in Picture 5.8.
  • Page 17 Pic 5.9 AC Connector Hole Pa�ern Step 5 : Set the sleeve and sealing ring in place. Step 6 : Connect the terminals to the inverter as shown in picture 5.10. Pic 5.10 AC input connec�on - 15 -...
  • Page 18 5.3 The connec�on of the ground line Good grounding is good for resis�ng surge voltage shock and improving EMI perfor- mance.Therefore, before connec�ng AC, DC and communica�on cables, you need to ground the cable firstly. 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 equipoten�al connec�on.
  • Page 19 5.4 Max. over current protec�on device In order to protect the inverter AC connec�on, it is recommended to install a circuit breaker to prevent overcurrent. See table 5.3 below. Rated output Rated output Current for protection Inverter voltage(V) current(A) device(A) SUN-18K-G 26.1 SUN-20K-G...
  • Page 20 - 18 -...

  • Page 21: Startup And Shutdown

    6. Startup and Shutdown Before star�ng the inverter, make sure that the inverter can meet the following condi�ons, otherwise it may result in fire or damage to the inverter. In this case,we do not undertake any responsibility. At the same �me, to op�mize the system configura�on, it is recommended that the two inputs be connected to the same number of photovoltaic modules.
  • Page 22 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.The SUN limiter shows as Pic 7.1.You can see corresponding line mark next to the green interface.
  • Page 23 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) L2(L)
  • Page 24 Load Pic 7.3 Clamp Senor Pic 7.4 Clamp Senor 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 25 Pic 7.7 Connect terminal to inverter 7.3 Debugging SUN Limiter Turn on the an�-backflow func�on of the inverter refer to the manual, then turn on the SUN limiter's power supply, next close the DC switch, and last turn on the inverter. MENU》Setup》Run Param ActiveP Island...
  • Page 26 7.4 Zero-export func�on (Op�on) The string inverter supports zero-export func�on via Energy meter / SUN-Limiter. Based on con�nuously data communica�on, once the Limiter or energy meter detects power export to the grid, it will send the informa�on to the inverter and then inverter can instruct the inverter to ramp down its ac�ve power according to match the load demand and achieve zero export.
  • Page 27 Grid Solar Panel array Inverter Normal Alarm meter RS485 Communication VCC_5V 485_A 485_B Family load Pic 7.10 Connec�on diagram of CHINT meter Warning: Ensuring grid input cables connect 1/4/7/10 port of energy meter, and inverter AC output cables connect 3/6/9/10 port of energy meter when connec�ng. 7.4.2 Debugging energy meter Turn on the an�-backflow func�on of the inverter refer to the manual, next close the DC switch, and last turn on the inverter.

  • Page 28: 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 29 8.1 The ini�al interface From the ini�al interface, you can check the current working state and product current power, today's power genera�on, total power genera�on of inverter. And can view today's power genera�on trend, the ID number of the inverter and the current power model of the inverter through the graph.
  • Page 30 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. Ver : 0166 Ver : 1860 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 31 8.1.1 Main Menu There are four sub menu 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 sub menu in the sta�s�cs. MENU》Statistics E-Day E-History E-Month Test Data 《...
  • Page 32 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 - 30 -...
  • Page 33 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 19152 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 34 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 - 32 -...

  • Page 35: Menu Setup

    8.5 Parameter se�ng Se�ng include 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 36 8.5.1.2 Language set Lauguage Set 简体中文 English 《 Angielski Pic 8.19 lauguage set 8.5.1.3 Display Set Display Set Brightness Delay 《 Delay time 05S Cancel Pic 8.20 Display set 8.5.1.4 Factory data reset Factory data reset Confirm to reset 《 Cancel Pic 8.21 Factory data reset set - 34 -...
  • Page 37 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. PassWord * * * * Pic 8.22 Password MENU》Setup》Run Param ActiveP Island ReactiveP 0.0% Meter -1.000 Limiter Fun_ISO OFF E_Coef 0.00 Fun_RCD OFF...
  • Page 38 MENU》Setup》Protect Param INMETRO 《 EN50949 EN50438 IEC61727 CUSTOM Cancel Pic 8.24 Protect Param Note: Engineer only. CUSTOM AC OverVoltage 240.0V 《 AC LowVoltage 235.0V AC OverFreq 52.00Hz AC LowFrwq 48.00Hz Rated Voltage 127/220V Cancel Pic 8.25 “CUSTOM” 8.5.4 Comm. Param MENU》Setup》Comm.Param Address : 01 《...

  • Page 39: Repair And Maintenance

    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. Warning: When the device is running, the local temperature is too high and the touch can cause burns.
  • Page 40 Error code Description Solutions 1. Turn off DC/AC switch, and turn on DC/AC switch 10mins Auxiliary switch power supply later; failure 2. If the fault still exists, please contact us for help. 1. Loss of one phase or AC voltage detection part failure or relays Reserved not closed;...
  • Page 41 Error code Description Solutions 1. Measure the actual grid voltage and compare with inverter set value. if the grid voltage measured is higher than set value, and AC Line W, U over voltage then ask help from local electrically company for solution; Generally, the inverter will 2.
  • Page 42 Error code Description Solutions 1. Check PV input voltage and Ubus voltage via LCD or monitoring platform; DC busbar voltage is too low 2. Disconnect DC switch and AC switch, and reconnect DC switch and AC switch 10min later to restart the inverter; 3.
  • Page 43 11.Specifica�on Model SUN-18K-G02 SUN-20K-G02 SUN-25K-G02 Input Side Max.DC Power(kW) 21.6 32.5 Max.DC Input Voltage(V) 1000 Start-up DC Input Voltage(V) MPPT Opera�ng Range(V) 200~800 Max.DC Input Current(A) 22+22 25+25 30+30 Number of MPPT/Strings per MPPT 2/2+2 Output Side Rated Output Power(kW) Max.Ac�ve Power(kW)
  • Page 44 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 502012006 Ver: 2.0, 2020-11...

This manual is also suitable for:

Sun-20k-g02Sun-25k-g02