SUN-21K-G04-LV - Unknown Deye - Free user manual and instructions

Product Type	Grid-connected PV Inverter
Model	SUN-21K-G04-LV
Dimensions (W x H x D)	362 x 577 x 215 mm (excluding connectors and brackets)
Weight	23 kg
Max. PV Input Power	27.3 kW
Max. PV Input Voltage	800 V
Start-up Voltage	250 V
MPPT Voltage Range	200 - 700 V
Rated AC Output Power	21 kW
Max. AC Output Apparent Power	21 kVA
Rated AC Output Current	55.2 / 52.7 A (depending on voltage)
Rated Output Voltage	127/220 V or 133/230 V (3L+N+PE)
Max. Efficiency	98.6%
Euro Efficiency	98.1%
MPPT Efficiency	>99%
Ingress Protection Rating	IP65
Operating Temperature Range	-25 to +65°C (derating above 45°C)
Noise Level	≤ 50 dB
Cooling Method	Intelligent air cooling
Communication Interfaces	RS485, RS232; optional GPRS/WiFi/Bluetooth/4G/LAN
Display	LCD + LED indicators
Warranty	Standard 5 years (extendable)
Safety Certifications	IEC 61727, IEC 62116, CEI 0-21, EN 50549, G99, VDE-AR-N 4105, etc.
Protections	DC reverse polarity, AC overcurrent/overvoltage/short circuit, thermal, insulation monitoring, RCD, islanding, surge protection

Frequently Asked Questions - SUN-21K-G04-LV Deye

What is the maximum PV input voltage for the SUN-21K-G04-LV?

The maximum PV input voltage is 800 V. The MPPT voltage range is 200-700 V, and the start-up voltage is 250 V.

How do I connect the energy meter for zero-export function?

Connect the energy meter (e.g., Eastron SDM630-Modbus V2 or CHNT DTSU666) to the inverter's RS485 port. Follow the wiring diagram in the manual: for the Eastron meter, connect L1, L2, L3, N to the grid and load sides accordingly. Set the meter to address 01 and enable it in the inverter's Running Param menu.

What should I do if the inverter displays error code F35?

Error F35 indicates No AC grid. Check the AC grid voltage and connections. Ensure the AC breaker is on and the grid voltage is within range. Restart the inverter; if the error persists, contact your installer.

Can I use multiple inverters with a single energy meter for zero-export?

Yes, you can connect up to 16 inverters in parallel using one meter. Set one inverter as Master and the others as Slave in the Meter Setting menu. All inverters must be connected via RS485 to the same meter.

How do I clean and maintain the inverter?

The inverter does not require regular maintenance. If dust accumulates on the heat sink, clean it with a soft brush. For the LCD, use a damp cloth. Do not use solvents or abrasive materials. Always turn off the inverter and wait for it to cool before cleaning.

What is the procedure to start up the inverter?

First, switch on the AC breaker. Then turn on the DC switch of the PV array. If sufficient DC voltage is present, the inverter will start and perform a self-check. Once passed, the NORMAL indicator will light up and the inverter will begin grid feeding.

How do I configure the datalogger for monitoring?

Insert the datalogger (WiFi stick) into the inverter's communication port and secure with a screw. After powering on the inverter, the datalogger will be energized. Use the Solarman app or web platform to configure Wi-Fi settings and register the inverter for remote monitoring.

What are the dimensions and weight of the inverter?

The inverter dimensions are 362 x 577 x 215 mm (excluding connectors and brackets) and it weighs 23 kg.

Is the inverter compatible with single-phase or three-phase grid?

The SUN-21K-G04-LV is a three-phase inverter. It requires a three-phase grid connection with L1, L2, L3, N, and PE. The rated output voltage is 127/220 V or 133/230 V (3L+N+PE).

What is the warranty period?

The standard warranty is 5 years. An extended warranty may be available. Contact your distributor for details.

USER MANUAL SUN-21K-G04-LV Deye

Grid-connected PV Inverter

SUN-18K-G04-LV

SUN-20K-G04-LV

SUN-21K-G04-LV

User Manual

Front view of a white industrial water heater unit with control panel and mounting base (no visible text or symbols)

Contents

1. Introduction - 1 -

1.1 Appearance Introduction - 1 -
1.2 Labels description - 2 -
1.3 Parts list - 2 -
1.4 Product handling requirements -3-

2. Safety warnings and instructions -4-

2.1 Safety signs - 4 -
2.2 Safety instructions - 4 -
2.3 Notes for using - 5 -

3. Operation Interface -5-

3.1 Interface View - 5 -
3.2 Status Indicator -6-
3.3 Buttons - 6 -
3.4 LCD Display - 6 -

4. Product installation -6-

4.1 Select installation location -6-
4.2 Installations Tools - 9 -
4.3 Inverter Installation -9-

5. Electrical Connection - 11 -

5.1 PV Module Selection - 11 -
5.2 DC input terminal connection - 11 -
5.3 AC input terminal connection - 13 -
5.4 The connection of the ground line - 15 -
5.5 Max. over current protection device - 16 -
5.6 Inverter monitoring connection - 16 -
5.7 Installation of datalogger - 17 -
5.8 Configuration of datalogger.... - 17 -

6. Startup and Shutdown ...... - 17 -

6.1 Start up the inverter - 18 -
6.2.Inverter.Shutdown - 18 -

7. Zero-export function via energy meter - 19 -

7.1 Multiple strings and parallel connection meters - 28 -
7.2 Use of zero-export function - 38 -
7.3 Notes while using zero export function - 39 -
7.4 How to browse the load power of your PV grid-tieplant on monitoring platform? - 39 -

8. General Operation -41-

8.1 The initial interface - 44 -
8.2 Submenus in the Main Menu - 45 -
8.3 System param setting - 47 -

- 48 - 8.4 Prote

8.5 Comm. param setting - 50 -

9. Repair and Maintenance - 51 -

10. Error information and processing -51-

1. Specification -56-
2. EU Declaration of Conformity - 57 -

About This Manual

The manual mainly describes the product information, guidelines for installation, operation and maintenance. The manual cannot include complete information about the photovoltaic (PV) system.

How to Use This Manual

Read the manual and other related documents before performing any operation on the inverter. Documents must be stored carefully and be available at all times. Contents may be periodically updated or revised due to product development. The information in this manual is subject to change without notice. The latest manual can be acquired via [e-mail]

Photovoltaic Grid-connected System

graph LR
    A["Solar Panel"] --> B["Inverter Metering PV array Power grid"]
    B --> C["Household Load"]
    C --> D["Transmission Tower"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333

1. Introduction

1.1 Appearance Introduction

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-G04-LV, SUN-20K-G04-LV, SUN-21K-G04-LV.

The following is collectively referred to as “inverter”.

Technical line drawings of two electronic control panels: one with a display and control buttons, the other with a fan and control panel (no text or symbols visible)

Pic 1.1 Front view Pic 1.2 Bottom view

1.2 Labels description

Label	Description
	Caution, risk of electric shock symbol indicates important safety instructions, which if not correctly followed, could result in electric shock.
	The DC input terminals of the inverter must not be grounded.
	CE mark of conformity
	Please read the instructions carefully before use.
	Symbol for the marking of electrical and electronics devices according to Directive 2002/96/EC. Indicates that the device, accessories and the packaging must not be disposed as unsorted municipal waste and must be collected separately at the end of the usage. Please follow Local Ordinances or Regulations for disposal or contact an authorized representative of the manufacturer for information concerning the decommissioning of equipment.

1.3 Parts list

Please check the following table, to see whether all the parts are included in the package:

Simple line drawing of a 3D mechanical part with no text or symbols

*Sensor Clamp(optional) x 3

Meter(optional) x 1

HJA4 Core Wire Female Connector - Screw Crimp x1

Simple line drawing of a right-angle pipe fitting (no text or symbols)

Wrench x 1

Technical line drawing of a mechanical clamp or tool with three circular holes (no text or symbols)

Solar Photovoltaic Connector Special Spanner x1

Datalogger (optional) x1

1.4 Product handling requirements

Lift the inverter out of the packaging box and transport it to the designated installation location.

Line drawing of a portable air conditioner unit with a hand pressing down and an arrow indicating the handle (no text or symbols)

transport

CAUTION:

Improper handling may cause personal injury!

• Arrange an appropriate number of personnel to carry the inverter according to its weight, and installation personnel should wear protective equipment such as anti-impact shoes and gloves.
• Placing the inverter directly on a hard ground may cause damage to its metal enclosure. Protective materials such as sponge pad or foam cushion should be placed underneath the inverter.
• Move the inverter by one or two people or by using a proper transport tool.
• Move the inverter by holding the handles on it. Do not move the inverter by holding the terminals.

2. Safety warnings and instructions

Improper use may result in potential electric shock hazards or burns. This manual contains important instructions that should be followed during installation and maintenance. Please read these instructions carefully before use and keep them for future reference.

2.1 Safety signs

Safety symbols used in this manual, which highlight potential safety risks and important safety information, are listed as follows:

Warning:

Warning symbol indicates important safety instructions, which if not correctly followed, could result in serious injury or death.

Shock Hazard:

Caution, risk of electric shock symbol indicates important safety instructions, which if not correctly followed, could result in electric shock.

Safety Hint:

Note symbol indicates important safety instructions, which if not correctly followed, could result in some damage or the destruction of the inverter.

High Temperature Hazard:

Caution, hot surface symbol indicates safety instructions, which if not correctly followed, could result in burns.

2.2 Safety instructions

Warning:

Electrical installation of the inverter must conform to the safety operation rules of the country or local area.

Warning:

Inverter adopts non-isolated topology structure, hence must insure DC input and AC output are electrical isolated before operating the inverter.

Shock Hazard:

Prohibit disassembling inverter case, there existing shock hazard, which may cause serious injury or death, please ask qualified person to repair.

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 until the inverter discharge the remnant electricity.

High Temperature Hazard:

Local temperature of inverter may exceed 80^ C while under operating.

Please do not touch the inverter case.

2.3 Notes for using

The single phase string power inverter is designed and tested under related safety regulations. It can ensure the personal safety of the user. But as a electric device, it may cause shock or injury by incorrect operation. Please operate the unit under below requirements:

1. Inverter should be installed and maintained by qualified person under local standard regulations.
2. Must disconnect the AC side first, then disconnect DC side while doing installation and maintenance, after that, please wait at least 5 mins to avoid getting shocked.
3. Local temperature of the inverter may exceed 80 °C while under operating. Do not touch to avoid getting injured.
4. All electrical installation must be in accord with local electrical standards, and after obtaining the permission of the local power supply department, the professionals can connect the inverter to the grid.
5. Please take appropriate anti-static measure.
6. Please install where children can not touch.
7. The steps to start the inverter: 1) switch on the AC side circuit breaker, 2) Switch on the DC side circuit breaker of the PV panel. 3) Turn on the DC switch of the inverter.
   The steps to stop the inverter: 1) switch off the AC side circuit breaker, 2) switch off the DC side circuit breaker of the PV panel. 3) Turn off the DC switch of the inverter.
8. Don't insert or remove AC and DC terminals when the inverter is in normal operation.
9. The DC input voltage of the inverter must not exceed the maximum value of the model.

3. Operation Interface

3.1 Interface View

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
	on	Inverter detects DC input
	off	Low DC input voltage
	on	Grid Connected
	off	Grid Unavailable
	on	Under normal operating
	off	Stop operating
	on	Detected faults or report faults
	off	Under normal operating

Table 3.1 Status indicator lights

3.3 Buttons

There are four keys in the front panel of the Inverter(from left to right): Esc, Up, Down and Enter keys. The keypad is used for:

• Scrolling through the displayed options (the Up and Down keys);
• Access to modify the adjustable settings (the Esc and Enter keys).

EscUpDownEnter

3.4 LCD Display

The two-line Liquid Crystal Display (LCD) is located on the front panel of the Inverter, which shows the following information:

• Inverter operation status and data;
  ● Service messages for operator;
• Alarm messages and fault indications.

4. Product installation

4.1 Select installation location

To select a location 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 potentially explosive atmospheres.

• Do not install in small closed spaces where air can not circulate freely. To avoid overheating, always make sure the flow of air around the inverter is not blocked.

• Exposure to direct sunlight will increase the operational temperature of the inverter and may cause output power limiting. It is recommended that inverter installed to avoid direct sunlight or raining.

• To avoid overheating ambient air temperature must be considered when choosing the inverter installation location. It is recommended that using a sun shade minimizing direct sunlight when the ambient air temperature around the unit exceeds 104°F/40°C.

Simple line drawing of a house with sun and roof lines (no text or symbols)

×

Simple line drawing of a house under rain with cloud and raindrops (no text or symbols)

×

Simple line drawing of a house under a cloud with snow falling (no text or symbols)

×

Simple line drawing of a house with sun and roof, no text or symbols present

√

Simple line drawing of a house under rain with cloud and raindrops (no text or symbols)

√

Simple line drawing of a house with snowflakes above and clouds above (no text or symbols)

√
Pic 4.1 Recommended installation place

• Install on a wall or strong structure capable of bearing the weight.
• Install vertically with a maximum incline of +15^ . If the mounted inverter is tilted to an angle greater than the maximum noted, heat dissipation can be inhibited, and may result in less than expected output power.
• If install more than one inverter, must leave at least 500mm gap between each inverter. And two adjacent inverters are also separated by at least 500 mm. And must install the inverter at the place where children cannot touch. Please see picture 4.3.
• Consider whether the installation environment is helpful to see the inverter LCD display and indicator status clearly.
• Must offer a ventilate environment if inverter installed in the airtight house.

Safety Hint:

Do not place or store any items next to the inverter.

Technical line drawing of a mechanical assembly with hatched background (no text or symbols)

×

×

×

√

√

Pic 4.2 Installation Angle

Pic 4.3 Installation Gap

4.2 Installations Tools

Installation tools can refer to the following recommended ones. Also, use other auxiliary tools on site.

table 4-1 Tool specification

4.3 Inverter Installation

The inverter is designed according to the wall mounted type installation, please use the wall mounted (the brick wall of the expansion bolt) when installing.

Procedure shows below:

1. Locate on the appropriate wall according to the bolt position on the mounting bracket, then mark the hole. On the brick wall, the installation must be suitable for the expansion bolt installation.

Diagram of a brick wall assembly with two vertical metal rods and blue directional arrows indicating force or movement (no text or symbols)

Pic 4.5 Inverter hanging plate installation

1. Ensure that the position of the installation holes on the wall is in accordance with the mounting plate, and the mounting rack is vertically placed.

2. Hang the inverter to the top of the mounting rack and then use the M4 screw in the accessory to lock inverter heat sink to the hanging plate, to ensure that the inverter will not move.

Technical diagram of a mechanical device with internal components and directional arrows (no text or symbols)

Pic 4.6 Inverter installation

5 Electrical Connection

5.1 PV Module Selection:

When selecting proper PV modules, please be sure to consider below parameters:

1) Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.
2) Open circuit Voltage (Voc) of PV modules should be higher than min. start voltage.
3) The PV modules used to connected to this inverter shall be Class A rating certified according to IEC 61730.

Inverter Model	SUN-18K-G04-LVS	UN-20K-G04-LVSUN	-21K-G04-LV
PV Input Voltage	350V (250V~800V)
PV Array MPPT Voltage Range	200V~700V
No. of MPP Trackers	2
No. of Strings per MPP Tracker	3+3

5.2 DC input terminal connection

1. Switch the Grid Supply Main Switch(AC)OFF.
2. Switch the DC Isolator OFF.
3. Assemble PV input connector to the inverter.

Warning:

When using PV modules, please ensure the PV+ & PV- of solar panel is not connected to the system ground bar.

Safety Hint:

Before connection, please make sure the polarity of the output voltage of PV array matches the “DC+” and “DC-” symbols.

Warning:

Before connecting inverter, please make sure the PV array open circuit voltage is within the 800V of the inverter.

Pic 5.1 DC+ male connector

Pic 5.2 DC- female connector

Safety Hint:

Please use approved DC cable for PV system.

Cable type	Cross section (mm2)
	Range Recommended value
Industry generic PV cable(model: PV1-F)	2.5-4.0(12~10AWG)	2.5(12AWG)

Table 5.1 DC Cable Specifications

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. (as shown in picture 5.5).

Technical line drawing of a mechanical assembly with rollers and a cylindrical component (no text or symbols)

Pic 5.5 connector with cap nut screwed on

d) Finally insert the DC connector into the positive and negative input of the inverter, shown as picture 5.6.

Technical line drawing of four mechanical components with no visible text or symbols

Technical line drawing of two vertical cylindrical mechanical components with mounting holes (no text or symbols)

Pic 5.6 DC input connection

Warning:

Sunlight shines on the panel will generate voltage, high voltage in series may cause danger to life. Therefore, before connecting 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 conditions.

Warning:

Please use its own DC power connector from the inverter accessories. Do not interconnect the connectors of different manufacturers. Max. DC input current should be 20A. if exceeds, it may damage the inverter and it is not covered by Deye warranty.

5.3 AC input terminal connection

Do not close the DC switch after the DC terminal is connected. Connect the AC terminal to the AC side of the inverter, the AC side is equipped with Three phase AC terminals that can be conveniently connected. Flexible cords are recommended for easy installation. The are as shown in Table 5.2.

Warning:

Prohibit using a single circuit breaker for multiple inverters, prohibit the connection of load between inverter circuit breakers.

	Cable CSAM	Model Cable outer dia AWG	Breaker	Recommend copper cable	Max cable length
SUN-18/20/21K-G04-LV	10mm^2	4-10mm 60A/400V6		10mm^2	Outside cable (3L+N+PE)20m

Table 5.2 Cable information

Pic 5.7 AC input connection

Warning:

Be sure that AC power source is disconnected before attempting to wire it to the unit.

1. Before making Grid port connection, be sure to turn off AC baeaker or disconnector first.
2. Remove insulation sleeve 10mm length, unscrew the bolts, insert the wires according to polarities indicated on the terminal block and tighten the terminal screws. Make sure the connection is complete.
3. Then, insert AC output wires according to polarities indicated on the terminal block and tighten terminal. Be sure to connect corresponding N/L1/L2/L3 and PE wires to related terminals as well. (as shown in picture 5.7).
4. Make sure the wires are securely connected.

5.4 The connection of the ground line

Good grounding is good for resisting surge voltage shock and improving EMI performance. Therefore, before connecting AC, DC and communication cables, you need to ground the cable firstly. For a single system, just ground the PE cable. For multiple machine systems, all PE cables of the inverter need to be connected to the same grounding copper platoon to ensure the equipotential connection. The installation of the shell ground wire is shown as picture 5.11. The external protective earthing conductor is made of the same metal as the phase conductor.

Technical line drawing of a mechanical device with an inset close-up showing internal components (no text or symbols)

Pic 5.11 The installation of the shell ground wire

Model	Wire Size	Cable( mm^2 )	Recommend copper cable	Torque value(max)
SUN-18/20/21K-G04-LV 1	2.4 NAWG 10	mm^2 10 mm^2

Warning:

Inverter has built-in leakage current detection circuit, The type A RCD can be connected to the inverter for protection according to the local laws and regulations. If an external leakage current protection device is connected, its operating current must be equal to 300 mA or higher, otherwise inverter may not work properly.

5.5 Max. over current protection device

In order to protect the inverter AC connection, it is recommended to install a circuit breaker to prevent overcurrent. See table 5.3 below.

Inverter	Rated output voltage(V)	Rated output current(A)	Current for protection device(A)
SUN-18K-G04-LV 1	27/133 6047.3/45.2
SUN-20K-G04-LV 1	27/133 6052.5/50.2
SUN-21K-G04-LV 1	27/133 6055.2/52.7

Table 5.3 Recommended current protector specifications

5.6 Inverter monitoring connection

Inverter has the function of wireless remote monitoring. The inverter with Wi-Fi function is equipped with Wi-Fi Plug to connect the inverter and network. Wi-Fi Plug's operation, installation, Internet access, APP downloading and other processes are detailed in the instructions.

graph TD
    A["GPRS"] -->|Data Flow| B["Router"]
    C["WiFi"] -->|Data Flow| B
    D["PC"] -->|Data Flow| B
    E["Phone"] -->|Data Flow| B
    F["Internet"] -->|Data Flow| B
    B -->|Data Flow| G["Web Server"]
    G -->|Data Flow| B
    style B fill:#f9f9f9,stroke:#333
    style G fill:#e6f7ff,stroke:#333

Pic 5.12 Internet monitoring solution

5.7 Installation of datalogger

When installing the WiFi stick, tear off the sealing strip on the inverter. Insert the datalogger into the interface and fix it with a screw. The configuration of the datalogger needs to be performed after various electrical connections have been completed and the inverter DC power on. When the inverter is on the DC power, it is determined whether the datalogger is normally electrified (The LED light shines out of the shell).

Technical line drawing of a rectangular electronic device with control panel and buttons (no text or symbols)

Pic 5.13 Datalogger installation diagram

5.8 Configuration of datalogger

For the configuration of datalogger, please refer to illustrations of the datalogger.

6. Startup and Shutdown

Before starting the inverter, make sure that the inverter can meet the following conditions, otherwise it may result in fire or damage to the inverter. In this case, we do not undertake any responsibility. At the same time, to optimize the system configuration, it is recommended that the two inputs be connected to the same number of photovoltaic modules.

a). The maximum open circuit voltage of each set of photovoltaic modules shall not exceed 800Vdc under any conditions.
b). Each input of the inverter better use the same type of photovoltaic module in series.
c). Total output power of PV shall not exceed the maximum input power of inverter, each photovoltaic modules shall not exceed the rated power of each channel.

6.1 Start up the inverter

When starting up the three phase string inverter, should fellow steps below:

1. Starting switch on the AC breaker.
2. Turn on the DC switch of the photovoltaic module, and if the panel provides sufficient starting voltage and power, the inverter will start.
3. The inverter will first check the internal parameters and the grid parameters, while the liquid crystal will show that the inverter is self-checking.
4. If the parameter is within acceptable range, the inverter will generate energy. NORMAL indicator light is on.

6.2 Inverter Shutdown

Must follow below steps while shutting down the inverter:

1. Switch off the AC breaker.
2. Wait for 30 seconds, turn off the DC switch (if any), or simply disconnect the DC input connector. The inverter will close the LCD and all LED within two minutes.

7. Zero-export function via energy meter

There're two kinds of energy meters for this series inverter. First type is Eastron SDM630-Modbus V2 which is able to measure the Max. 100A current directly. More details please refer to Pic 7.1 & 7.2. 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 7.3 & 7.4. Also, the CHNT meter DTSU666 is supported, it can measure the Max. 80A current directly. More details about the DTSU666, please refer to Pic 7.1 & 7.16.

When you are reading this, we believe that you have completed the connection according to the requirements of chapter 5, if you have been running your inverter at this time, and you want to use the zero-export function, please turn off AC and DC switch of the inverter, and wait for 5 minutes until the inverter completely discharged. Please follow below Picture 7.1 to connect the energy meter.

For system wiring diagram, the red line refers to L line (L1, L2, L3), the black line refers to the neutral line (N). Connecting energy meter RS485 cable to inverter's RS485 port. It's recommended to install an AC switch between the inverter and the utility grid, the specs of the AC switch are determined by the power of load.

If there is no integrated DC switch inside the inverter you purchased, we commend you to connect the DC switch. The voltage and current of the switch depend on the PV array you access.

Eastron SDM630-Modbus V2

RS 485

Pic 7.1 Eastron meter

graph TD
    A["Solar Panel array"] --> B["Inverter"]
    B --> C["AC Breaker"]
    C --> D["Family load"]
    D --> E["meter"]
    E --> F["RS485 Communication"]
    F --> G["GND"]
    G --> H["VCC_5V"]
    H --> I["RS 485 Female connector"]
    I --> J["AC Breaker"]
    J --> K["RS 485 Male connector"]
    K --> L["AC Breaker"]
    L --> M["L1 L2 L3 N"]
    M --> N["RS485 Communication"]
    N --> O["L1 L2 L3 N"]
    O --> P["Power Supply"]

Pic 7.2 Connection diagram of Eastron meter

Warning:

In final installation, breaker certified according to IEC 60947-1 and IEC 60947-2 shall be installed with the equipment.

	1 2 3 4	5 6 7 8
Eastron	L1	N
	L2	L3
	L3	L2
	N	L1
	Gird(1,2,3,4)	Load(5,6,7,8)
	B A G
RS 485
5 6 7 8	RS 485 B RS 485 A GND

Eastron SDM630-Modbus V2

Pic 7.3 Eastron meter

Solar Panel array	Inverter
	AC Breaker
	RS 485
	Male
	connector		L1 L2 L3 N Family load
VCC_5V	485_B		N L3 L2 L1
	RS 485
	Female connector		L1 L2 L3 N
GND	485_A
			meter
			5 6 7 8 L1 L2 L3 N L1 L2 L3 N
3	485_A
2	485_B
1	RS485 Communication
	GND
			Generator

Pic 7.4 Connection diagram of Eastron meter

Eastron SDM630MCT

graph TD
    A["Grid voltage sampling"] --> B["Current inputs"]
    C["Auxiliary power supply"] --> D["Current inputs"]
    E["3 PHASE 4 WIRE"] --> F["L1"]
    E --> G["L2"]
    E --> H["L3"]
    E --> I["N"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style E fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style D fill:#ccf,stroke:#333
    style F fill:#cfc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#cfc,stroke:#333
    style I fill:#cfc,stroke:#333

RS 485

Pic 7.5 Eastron meter

graph TD
    A["Solar Panel array"] --> B["Inverter"]
    B --> C["RS 485 Male connector"]
    C --> D["AC Breaker"]
    D --> E["Family load"]
    E --> F["Grid"]
    subgraph Solar Panel Array
        G["VCC_5V"] --> H["RS 485 Female connector"]
        I["GND"] --> H
        J["RS485 Communication GND"] --> H
    end
    H --> K["Grid"]
    style Solar Panel Array fill:#f9f,stroke:#333
    style Inverter fill:#ccf,stroke:#333
    style Family Load fill:#dfd,stroke:#333
    note right of F Note: Arrow direction towards the inverter

Pic 7.6 Connection diagram of Eastron meter

Eastron SDM630MCT

graph TD
    A["Grid voltage sampling"] --> B["Current inputs"]
    C["Auxiliary power supply"] --> D["Current inputs"]
    E["3 PHASE 4 WIRE"] --> F["L1"]
    E --> G["L2"]
    E --> H["L3"]
    E --> I["N"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style E fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style D fill:#ccf,stroke:#333
    style F fill:#cfc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#cfc,stroke:#333
    style I fill:#cfc,stroke:#333

RS 485

Pic 7.7 Eastron meter

graph TD
    A["Solar Panel array"] --> B["Inverter"]
    B --> C["RS 485 Male connector"]
    C --> D["AC Breaker"]
    D --> E["Family load"]
    E --> F["Generator"]
    subgraph Solar Panel Array
        G["VCC_5V"] --> H["GND"]
        I["RS 485 Female connector"] --> J["RS485 Communication GND"]
    end
    subgraph Inverter
        K["RS 485"] --> L["AC Breaker"]
        M["RS485"] --> N["Eastron"]
        O["RS485"] --> P["meter"]
    end
    style Solar Panel Array fill:#f9f,stroke:#333
    style Inverter fill:#ccf,stroke:#333
    style Family load fill:#dfd,stroke:#333
    style Generator fill:#dfd,stroke:#333

Pic 7.8 Connection diagram of Eastron meter

CHNT DTSU666

Pic 7.9 CHNT meter

graph TD
    A["Solar Panel array"] --> B["Inverter"]
    B --> C["AC Breaker"]
    C --> D["Family load"]
    D --> E["meter"]
    E --> F["Grid"]
    B --> G["RS485 Male connector"]
    G --> H["VCC_5V"]
    G --> I["RS485 Female connector"]
    I --> J["GND"]
    J --> K["RS485 Communication"]
    K --> L["Grid"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#fcf,stroke:#333
    style F fill:#cff,stroke:#333
    style G fill:#ffc,stroke:#333
    style H fill:#cfc,stroke:#333
    style I fill:#cfc,stroke:#333
    style J fill:#cfc,stroke:#333
    style K fill:#cfc,stroke:#333
    style L fill:#fcc,stroke:#333

Pic 7.10 Connection diagram of CHNT meter

CHNT DTSU666

Pic 7.11 CHNT meter

graph TD
    A["Solar Panel array"] --> B["Inverter"]
    B --> C["RS 485 Male connector"]
    C --> D["AC Breaker"]
    D --> E["L1 L2 L3 N"]
    E --> F["Family load"]
    G["VCC_5V"] --> H["RS 485 Female connector"]
    H --> I["GND"]
    I --> J["RS485 Communication"]
    J --> K["Generator"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#cfc,stroke:#333
    style I fill:#cfc,stroke:#333
    style J fill:#cfc,stroke:#333
    style K fill:#fcc,stroke:#333

Pic 7.12 Connection diagram of CHNT meter

Phase A current =5.000A

Phase B current =5.001A

Phase C current =5.002A

graph TD
    A["Solar Panel array"] --> B["Inverter"]
    B --> C["AC Breaker"]
    C --> D["Home Load"]
    D --> E["Grid"]
    F["VCC_5V1"] --> G["GND 2"]
    G --> H["RS 485 Female connector 485_A"]
    H --> I["RS485 Communication"]
    I --> J["Grid"]
    K["Resistor L1L2L3N"] --> L["Grid"]
    M["Black Box"] --> N["Resistor Black Box"]
    O["Red Arrow"] --> P["Arrow direction towards the inverter"]
    Q["Note: the arrow direction towards the inverter"]

Pic 7.14 Connection diagram of CHNT meter

Phase A current =5.000A

Phase B current =5.001A

Phase C current =5.002A

graph TD
    A["Solar Panel array"] --> B["Inverter"]
    B --> C["AC Breaker"]
    C --> D["Home load"]
    D --> E["Generator"]
    B --> F["VCC_5V1"]
    B --> G["GND2"]
    B --> H["RS 485 Female connector 485_A"]
    B --> I["RS485 Communication"]
    I --> J["Generator"]
    C --> K["L1L2L3N"]
    C --> L["L1L2L3N"]
    C --> M["AC Breaker"]
    M --> N["Home load"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#ffc,stroke:#333
    style H fill:#ffc,stroke:#333
    style I fill:#ffc,stroke:#333
    style J fill:#cfc,stroke:#333
    style K fill:#cfc,stroke:#333
    style L fill:#cfc,stroke:#333
    style M fill:#cfc,stroke:#333

Pic 7.14 Connection diagram of CHNT meter

7.1 Multiple strings and parallel connection meters

This application is that when the string inverters work in parallel, there is only one power grid and one load, and only one meter can be connected to prevent reverse current, so only this many-to-one anti-reverse current connection can be connected.

If there’s several inverters in a plant, also it can use 1pcs meter to realize zero export function. For example, if there’s 3pcs inverter in the system with 1pcs meter. We need to setup 1pcs inverter as the master and others setup as slaves. And, all of them need to connect to the meter via RS485. Below is the system diagram and configuration of the system.

Pic 7.17 Meter function

Name Description		Range
Exp_Mode	AVG: Average power of three phase is zero exported. MIN: Phase with minimum load power is zero exported, while the other two phase may be in purchase mode.	AVG/MIN
CT_Ratio	CT ratio of power grid side meter when extern CT is applied.	1-1000
MFR	Manufacturer of the grid side meter. Modbus Address of it should be set as 01.	AUTO/CHNT/EASTRON
Feedin	Percentage of the Feed in power exported to the grid.	0-110%
Shunt	Parallel mode. Set one inverter as Master, others are Slave. ONLY need to set the master, Slave will follow the settings in the master.	OFF/Master/Slave
ShuntQTY	Number of inverters in parallel	1-16
Generator	DG side meter function Enable/Disable	ON/OFF
G.CT	CT ratio of power DG side meter when extern CT is applied.	1-1000
G.MFR	Manufacturer of the DG side meter. Modbus Address of it should be set as 02.	AUTO/CHNT/EASTRON
	Capacity of the DG.	1-999kWG.Cap

Note: Select Meter option in Run Param and long press ENTER button to enter this Meter Setting page.

Eastron SDM630-Modbus V2

graph TD
    A["1"] --> B["L1"]
    A --> C["L2"]
    A --> D["L3"]
    A --> E["N"]
    F["2"] --> G["L2"]
    F --> H["L3"]
    F --> I["N"]
    J["3"] --> K["L3"]
    J --> L["N"]
    M["4"] --> N["L3"]
    M --> O["N"]
    P["Gird"] --> Q["End"]

(1,2,3,4)

Load
(5,6,7,8)

Pic 7.18 Eastron meter

graph TD
    A["Solar Panel array"] --> B["Master(Mst)"]
    B --> C["Slave1(Slv1)"]
    B --> D["Slave2(Slv2)"]
    C --> E["Load"]
    D --> F["AC Breaker"]
    G["VCC_5V"] --> H["RS 485 Female connector"]
    I["Grid"] --> J["Master(Mst)"]
    J --> K["Slave1(Slv1)"]
    J --> L["Slave2(Slv2)"]
    K --> M["Load"]
    L --> N["AC Breaker"]
    O["Grid"] --> P["Master(Mst)"]
    P --> Q["Slave1(Slv1)"]
    P --> R["Slave2(Slv2)"]
    Q --> S["Load"]
    R --> T["AC Breaker"]
    U["Grid"] --> V["Master(Mst)"]
    V --> W["Slave1(Slv1)"]
    V --> X["Slave2(Slv2)"]
    W --> Y["Load"]
    X --> Z["AC Breaker"]
    AA["L1"] --> AB["AC Breaker"]
    AC["L2"] --> AD["AC Breaker"]
    AE["L3"] --> AF["AC Breaker"]
    AG["N"] --> AH["AC Breaker"]
    AI["L1"] --> AJ["AC Breaker"]
    AK["L2"] --> AL["AC Breaker"]
    AM["L3"] --> AN["AC Breaker"]
    AO["N"] --> AP["AC Breaker"]

Pic 7.19 Eastron Connection diagram(The pass-through table)

Eastron SDM630-Modbus V2

graph TD
    A["1"] --> B["L1"]
    A --> C["L2"]
    A --> D["L3"]
    A --> E["N"]
    F["2"] --> G["L2"]
    F --> H["L3"]
    F --> I["N"]
    J["3"] --> K["L3"]
    J --> L["N"]
    M["4"] --> N["L3"]
    M --> O["N"]
    P["Gird"] --> Q["End"]

(1,2,3,4)

Load
(5,6,7,8)

Pic 7.20 Eastron meter

graph TD
    A["Solar Panel array"] --> B["Master(Mst)"]
    B --> C["Slave1(Slv1)"]
    B --> D["Slave2(Slv2)"]
    C --> E["Load"]
    D --> F["AC Breaker"]
    E --> G["Generator L1 L2 L3 N"]
    F --> G
    H["VCC_5V"] --> I["RS 485 Female connector"]
    I --> J["RS485"]
    K["485_A GND"] --> L["Slave1(Slv1) RS485"]
    K --> M["Slave2(Slv2) RS485"]
    L --> N["AC Breaker L1 L2 L3 N"]
    M --> O["AC Breaker L1 L2 L3 N"]
    P["485_B GND"] --> Q["Slave1(Slv1) RS485"]
    P --> R["Slave2(Slv2) RS485"]
    Q --> S["Load"]
    R --> T["AC Breaker L1 L2 L3 N"]

Pic 7.21 Eastron Connection diagram(The pass-through table)

Eastron SDM630MCT

graph TD
    A["Grid voltage sampling"] --> B["Auxiliary power supply"]
    B --> C["Current inputs"]
    C --> D["L1"]
    C --> E["L2"]
    C --> F["L3"]
    C --> G["N"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#fcc,stroke:#333
    style F fill:#fcc,stroke:#333
    style G fill:#fcc,stroke:#333

Pic 7.22 Eastron meter

Pic 7.23 Connection diagram(Three-phase electricity)

Eastron SDM630MCT

graph TD
    A["Grid voltage sampling"] --> B["Current inputs"]
    C["Auxiliary power supply"] --> D["Current inputs"]
    E["3 PHASE 4 WIRE"] --> F["L1"]
    E --> G["L2"]
    E --> H["L3"]
    E --> I["N"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style E fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style D fill:#ccf,stroke:#333
    style F fill:#cfc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#cfc,stroke:#333
    style I fill:#cfc,stroke:#333

Pic 7.24 Eastron meter

Pic 7.25 Connection diagram(Three-phase electricity)

CHNT DTSU666

Pic 7.26 CHNT meter

Pic 7.27 CHNT Connection diagram(The pass-through table)

CHNT DTSU666

Pic 7.28 CHNT meter

Pic 7.29 CHNT Connection diagram(The pass-through table)

CHNT DTSU666

3×230/400V

100A/40mA

Pic 7.30 CHNT meter

Phase C current = 5.002A

Pic 7.31 CHNT Connection diagram(The pass-through table)

CHNT DTSU666
3×230/400V
100A/40mA

Phase A current =5.000A

Phase B current =5.001A

Phase C current =5.002A

Pic 7.32 CHNT meter

Solar Panel array

Solar Panel array

Solar Panel array

Master(Mst)

Slave1(Slv1)

Slave2(Slv2)

AC Breaker

AC Breaker

AC Breaker

AC Breaker

load

VCC_5V

485_B
RS 485
Female connector
485_A

GND

Master(Mst)

485_B 485_A

Slave1(Slv1)
RS485

[###]
[EMPTY]
[Non-Text]
[Non-Text]
[Non-Text]
[Non-Text]
[Non-Text]
[Non-Text]
1
1
↓
Pic 7.33 CHNT Connection diagram(The pass-through table)

7.2 Use of zero-export function

When the connection is completed, the following steps should be referred to use this function:

1. Turn on the AC switch.
2. Turn on the DC switch, waiting for the inverter's LCD is turned on.
3. Press Enter button on the LCD panel in the main interface into the menu options, select [parameter setting] to enter setup submenu, and then select [running parameters] as shown in picture 7.34, at this time please input the default password 1234 through pressing the button [up down, enter], enter the operation parameter setting interface, shown as picture 7.35.

System Paramount <

P..um P..param

Is and it

OFF 6 incheter

Pic 7.35 Meter switch Pic 7.34 Parameter set

1. Operate the button [up down], move setting cursor to energy meter and press the button [enter]. At this time you can turn on or turn off the energy meter by choosing [up down] button, please press [enter] button to confirm when setting done.
2. Move the cursor to [OK], press [enter] to save the settings and exit the running parameters page, otherwise the settings are invalid.
3. If set up successfully, you can return to the menu interface, and display the LCD to [home page] by press the [up down] button. If it displays [meter power XXW], the zero-export function setting is completed. Shown as picture 7.36.

Motor Power 200

Pic 7.36 Zero-export function via energy meter turn on

1. Meter power XXW shows positive means grid is supplying the load, and no power fed into grid. if meter power shows negative, it means PV energy is being sold to grid or energy meter wiring connection has problem.
2. After properly connection is done, wait for inverter starting. If the power of the PV array meets the current power consumption, the inverter will keep a certain output to counteract the power of the grid without backflow.

7.3 Notes while using zero export function

For your safety and the operation of limiter function of the inverter, we put forward the following suggestions and precautions:

Safety Hint:

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.

Safety Hint:

While the utility power is negative and inverter has no output power, that means the orientation of the current sensor is wrong, please turn off the inverter and change orientation of the current sensor.

7.4 How to browse the load power of your PV grid-tie plant on monitoring platform?

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 feed into grid). You also need to connect the meter according to above diagram. After the connection completed successfully, the inverter will show the load power on the LCD. But please don’t setup “Meter ON”. Also, you will be able to browse the load power on the monitoring platform. The plant setting method as below description.

Firstly, go to the solarman platform(https://pro.solarmanpv.com, this link is for solarman distributor account; or https://home.solarmanpv.com, this link is for solarman end user account;) plant home page and click “edit”.

And then choose your system type as "Self-consumption"

Secondly, go to plant page, if it shows the PV power, load power and grid power, which means the configuration is correct.

8. General Operation

During normal operation, the LCD shows the current status of the inverter, including the current power, total generation, a bar chart of power operation 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, software version number and Wifi connection state of the inverter.

graph TD
    A["Start"] --> B["LCD Main menu"]
    A --> C["Total DC Power"]
    A --> D["PV1 and Power"]
    A --> E["UA and UB"]
    A --> F["UC and Freq"]
    A --> G["E-Day and E-Total"]
    A --> H["Time"]
    A --> I["*Meter"]
    A --> J["*IoaEp and Total"]
    A --> K["*ImpEp and Total"]
    A --> L["*Load"]
    A --> M["*ExpEp and Total"]
    B --> N["Device information"]
    N --> O["GL3000 SN-01"]
    N --> P["PF:0.000"]
    N --> Q["ID:2104149060"]
    N --> R["Inv1400"]
    N --> S["LcdA244"]
    C --> T["Fault record"]
    T --> U["1 F35 220513 07"]
    T --> V["2 F35 220513 06"]
    T --> W["3 F35 220513 06"]
    T --> X["4 F35 220513 06"]
    C --> Y["ON/OFF"]
    C --> Z["Setup"]
    Z --> AA["*PV VA"]
    C --> AB["*Pv VA"]

    AC["Setup"] --> AD["System param"]
    AD --> AE["Time Set"]
    AD --> AF["Language Set"]
    AF --> AG["English"]
    AF --> AH["Polski"]
    AF --> AI["P cck"]
    AF --> AJ["Nederland"]
    AD --> AK["Display Set"]
    AK --> AL["Bright Delay"]
    AK --> AM["Delay time 05S"]
    AK --> AN["OK << Cancel"]
    AD --> AO["Factory Reset"]
    AO --> AP["Confirm Reset"]
    AO --> AQ["Cancel"]
    AD --> AR["Set Restore"]
    AR --> AS["I Confirm"]
    AR --> AT["Cancel"]

graph TD
    A["Setup"] --> B["Running param"]
    B --> C["ActiveP"]
    B --> D["Q-Mode"]
    B --> E["VRated"]
    B --> F["ReactP"]
    B --> G["PF"]
    B --> H["Fun- ISO"]
    B --> I["Fun RCD"]
    B --> J["SelfCheck"]
    B --> K["Island"]
    B --> L["Meter"]
    B --> M["Limiter"]
    B --> N["Feed-in"]
    B --> O["MPPT Num"]
    B --> P["WindTurbine"]
    B --> Q["ARC"]
    B --> R["OF-Derate"]
    B --> S["UF-Uprate"]
    B --> T["WGRa"]
    B --> U["WGraStr"]
    B --> V["PU"]
    B --> W["LVRT"]
    B --> X["HVRT"]
    B --> Y["DRM"]
    B --> Z["Sunspec"]
    B --> AA["ZVRT"]

    C --> AB["QP"]
    C --> AC["PFP"]
    C --> AD["QU"]
    C --> AE["PF"]
    C --> AF["Q(%)"]
    C --> AG["OFF"]

    D --> AH["Exp_Mode"]
    D --> AI["CT_Ratio 0"]
    D --> AJ["MFR"]
    D --> AK["FeedIn"]
    D --> AL["Shunt"]
    D --> AM["ShuntQTY"]
    D --> AN["Generator"]
    D --> AO["G.CT"]
    D --> AP["G.MFR"]
    D --> AQ["G.FeedIn"]
    D --> AR["G.Pout"]
    D --> AS["G.Cap"]

    AH --> AT["V1-V12"]
    AH --> AU["DC1-Wind OFF/ON"]
    AH --> AV["DC2-Wind OFF/ON"]
    AH --> AW["OK"]
    AH --> AX["Cancel"]

    I --> AY["CLR"]
    I --> AZ["ON"]
    I --> BA["OFF"]

    J --> BB["HYS"]
    J --> BC["ON"]
    J --> BD["OFF"]

    K --> BE["WGRa"]

    L --> BF["ON"]
    L --> BG["OFF"]

    M --> BH["V1-V4 P1-P4"]

*Note: These parameters will be available after the meter is connected successfully. Otherwise, it won't show.

Attention: For running param detail on the LCD display, please refer to the official Deye website https://www.deyeinverter.com

graph TD
    A["Setup"] --> B["Protect Param"]
    A --> C["Comm. param"]
    B --> D["GridStandard"]
    B --> E["Advanced"]
    B --> F["Back"]
    D --> G["Brazil"]
    D --> H["EN50549-1-PL"]
    D --> I["EN50549-1"]
    D --> J["IEC61727"]
    D --> K["CUSTOM"]
    D --> L["VDE_4105"]
    D --> M["VDE_0126"]
    D --> N["Spain"]
    D --> O["CEI_0-21"]
    D --> P["G98_G99"]
    D --> Q["NB/T 32004-B"]
    D --> R["Australia-A-C"]
    D --> S["NEW Zealand"]
    D --> T["E MEA"]
    D --> U["PEA"]
    D --> V["Norway"]
    D --> W["Switzerland"]
    D --> X["R25"]
    C --> Y["Address:01"]
    C --> Z["Meter:AUTO"]
    C --> AA["BaudRate: 9600"]

Pic 8.1 LCD operation flow chart

8.1 The initial interface

From the initial interface, you can check PV power, PV voltage, grid voltage, inverter ID, model and other information.

Pic 8.2 The initial interface

Press UP or Down, you can check inverter DC voltage, DC current, AC voltage, AC current and inverter temperature.

Pic 8.4 Load power

Pic 8.3 PV input voltage and current information

Pic 8.5 Grid voltage and current information Pic 8.6 Grid voltage and frequency

E-Day: Daily generation; E-Total: Total generation.
Pic 8.7 PV generation

LoadEp: Daily consumption; Total: Total energy consumption.
Pic 8.10 Load consumption

Traps: 0.0000
Total: 0.0000 

ImpEp: Daily energy purchased from grid; Total: Total energy purchased from grid.

Pic 8.11 Electrical energy

Expep: 8,000,000
Total: 8,000,000 

ExpEp: Daily energy sold to grid; Total: Total energy sold to grid.

Pic 8.12 Electrical energy

8.2 Submenus in the Main Menu

There are five submenus in the Main Menu.

8.2.1 Device information

You can see the LCD software VerA238 and control board software Ver1400. In this interface, there are parameters such as rated power communication addresses.

Device Info. <Fault Record 

It can keep Eight fault records in the menu including time, customer can deal with it depends on the error code.

[Non-Text] 

17. 2023年1月
2023年1月

Pic 8.14 Fault Record

8.2.3 ON/OFF setting

Pic 8.15 ON/OFF setting

When the inverter is turned off, it stops working immediately, and go to standby mode and then will go to self-test program again. If it passed the self-test, it will start to work again.

8.2.5 Parameter setting

There are five submenus in the setup. Setting includes system param, run param, protect param, comm: param. All of these information for maintenance reference.

Pic 8.16 Submenus of the parameter setup

8.3 System param setting

System Param includes time set, language set, display set and factory reset.

Pic 8.17 System Param

Pic 8.18 Time

Pic 8.20 LCD Screen settings Pic 8.19 Languag

Pic 8.21 Delay time set Pic 8.22 Reset to factory setting

8.4 Protect Param setting

Warning:

Engineer Only.

We will set the param depends on the safety requirements, so customers don't need to reset it. The password is same as 8.4 Running param

Password

* * * *

Briwist, Standard +

Advanced

Back

[Non-Text]

Pic 8.24 Password

[Non-Text]

EN50549-1-PI

2014年

IEEE1727

CUSTOM

UOE:4.105, x:

WIRELLA

spain

CET 0-21

098

G99

NBT32004-B

Australia

Australia-B

Australian...

New Zealand 46

MEA

FEA

Norway

Switzerland

P.25

OK Cancel <

Pic 8.25 GridStanderd

OverVolt	Lv3
Point	240.0V

OverVolt	Lv3
Delay	1000ms <<

OverLight	Liu?
Point	240.0V <<

QuarVert	Lv2
Delay	1000ms

OverVolt	Lvl
Point	240.0V <<

OverVolk	Lvl
Delay	1000ms

WOMENAL	LVI
Point	258,000

Underwrite	LVI
Delay	1000ms

1.	2.	3.
4.	5.	6.

Underwell	Lys?
Delay	100ms

UnderVolt	Lv3
Point	275,000 cc

UnderVolt	Lv3
Delay	1000ms

Quarpy L.P.

Deyl J. 2016

QuarFreq	LW2
Point	52.00Hz

OverFreq	Lv2
Delay	1000ms <<

OverFreq	Lvl
Point	52.00Hz

OverFreq	Lvl
Delay	1000ms

UnderFreq	Lvl
Point	48.00Hz

UnderFreq	Lvi
Delay	1000ms

Pic 8.26 "CUSTOMIZED"

Please set the proper grid parameters according to the requirements of your current country's grid regulations. If you are not clear about it, please consult your installer.

8.5 Comm. param setting

Pic 8.27 Comm. 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 better to clean it with a soft 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.

High Temperature Hazard:

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.

Safety Hint:

No solvent, abrasive materials or corrosive materials can be used for cleaning any parts of the inverter.

10. Error information and processing

Inverter has been designed in accordance with international grid tied standards for safety, and electromagnetic compatibility requirements. Before delivering to the customer the inverter has been subjected to several tests to ensure its optimal operation and reliability.

10.1 Error code

If there is any failure, the LCD screen will display an alarm message. In this case, the inverter may stop feeding energy into the grid. The alarm description and their corresponding alarm messages are listed Table 10.1.

Error code	Description Ongrid - Three Phase
F01 DC input	polarity reverse fault Check the PV input polarity.
F02	DC insulation impedance permanent fault	Check the grounding cable of inverter.
F03 DC leakage current fault Hardly appear the code. Never ever happened so far.
F04	Ground fault GFDI Check the solar panel output connection.
F05	Read the memory error	Failure in reading memory (EEPROM). Restart the inverter if the fault still exists, contact your installer or Deye service.
F06	Write the memory error	Failure in writing memory (EEPROM). Restart the inverter if the fault still exists, contact your installer or Deye service.
F07 GFDI blown fuse Hardly appear the code. Never ever happened so far.
F08 GFDI grounding touch failure Hardly appear the code. Never ever happened so far.
F09	IGBT damaged by excessive drop voltage	Hardly appear the code. Never ever happened so far.
F10	Auxiliary switch power supply failure	1. It tells the DC 12V is not existed.2. Restart the inverter, if the fault still exists, please contact your installer or Deye service.
F11 AC main contactor errors Hardly appear the code. Never ever happened so far.
F12 AC auxiliary contactor errors Hardly appear the code. Never ever happened so far.
F13	reserved	1. Loss of one phase or AC voltage detection part failure or relays not closed.2. Restart the inverter, if the error still exists, please contact your installer or Deye service.
F14 DC firmware over current Hardly appear the code. Never ever happened so far.
F15	AC firmware over current	1. The internal AC sensor or detection circuit on control board or connection wire may loose.2. Restart the inverter, if the error still exists, please contact your installer or Deye service.
F16	GFCI(RCD) Ac leakage current fault	1. This fault means the average leakage current is over 300mA. Check whether DC power supply or solar panels is ok, then check 'Test data'->'diL' value is about 40; Then check the leakage current sensor or circuit (the following picture). Checking test data needs using big LCD.2. Restart the inverter, if the error still exists, please contact your installer or Deye service.
F17	Three phase current, over-current fault	Hardly appear the code. Never ever happened so far.
F18	AC over current fault of hardware	1. Check AC sensor or detection circuit on control board or connection wire.2. Restart the inverter or factory reset, if the error still exists, please contact your installer or Deye service.
F19	All hardware failure synthesis	Hardly appear the code. Never ever happened so far.
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 and its detection circuit.3. Check if the inverter FW version is suitable for the hardware.4. Restart the inverter, if the error still exists, please contact your installer or Deye service.
F21	DC leakage flow fault	Hardly appear the code. Never ever happened so far.
F22	Crash stop (if there is a stop button)	Contact your installer for help.
F23	AC leakage current is transient over current	1. This fault means the leakage current is above 30mA suddenly. Check whether DC power supply or solar panels is ok, then check 'Test data'-> 'diL' value is about 40; Then check the leakage current sensor or circuit. Check test data needs using big LCD.2. Restart the inverter, if the fault still exists, contact your installer or Deye service.
F24	DC insulation impedance failure	1. Check Vpe resistance on main board or detection on control board. Check PV panels is OK. Many times this issue is the PV problem.2. Check whether the PV panel (aluminum frame) is grounded well and inverter is grounded well. Open the cover of inverter and then check the inside ground cable is fixed well on the shell.3. Check if the AC/DC cable, terminal block are shorted to ground or the insulation is damaged.4. Restart the inverter, if the fault still exists, contact your installer or Deye service.
F25 DC feedback back fault Hardly appear the code. Never ever happened so far.
F26	The DC busbar is unbalanced	1. Check whether the 'BUSN' cable or driver board power supply cable is loose.2. Restart the inverter, if the fault still exists, contact your installer or Deye service.
F27 DC end insulation error Hardly appear the code. Never ever happened so far.
F28 Inverter 1 DC high fault Hardly appear the code. Never ever happened so far.
F29 AC load switch failure Hardly appear the code. Never ever happened so far.
F30	AC main contactor failure	1. Check relays and AC voltage of relays.2. Check relays driver circuit. Check if the software is not suitable for this inverter. (Old inverter not have relays detection function)3. Restart the inverter, if the fault still exists, contact your installer or Deye service.
F31	Relay open circuit fault	1. At least one Relay can't be closed. Check relays and its driver signal. (Old inverter not have relays detection function)2. Restart the inverter, if the fault still exists, contact your installer or Deye service.
F32 Inverter 2 dc high fault Hardly appear the code. Never ever happened so far.
F33 AC over current Hardly appear the code. Never ever happened so far.
F34 AC current over load Hardly appear the code. Never ever happened so far.
F35	No AC grid	1. Check AC grid voltage. Check AC voltage detection circuit. Check if the AC connector in good condition. Check whether the AC grid is normal in voltage.2. Restart the inverter, if the fault still exists, contact your installer or Deye service.
F36 AC grid	phase error Hardly appear the code.	Never ever happened so far.
F37	AC three-phase voltage unbalance failure	Hardly appear the code. Never ever happened so far.
F38	AC three-phase current unbalance failure	Hardly appear the code. Never ever happened so far.
F39	AC over current(one cycle)	1. Check AC current sensor and its circuit.2. Restart the inverter, if the fault still exists, contact your installer or Deye service.
F40 DC over current Hardly appear the code. Never ever happened so far.
F41	AC Line W,U over voltage	Check the AC voltage protection setting. 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 protection setting. Check the voltage difference between LCD and meter. Also need to check whether AC cables are all firmly and correctly connected.
F43	AC Line V,W over voltage	Check the AC voltage protection setting.And Check if the AC cable is too thin.Check the voltage difference between LCD and meter.
F44	AC Line V,W low voltage	Check the AC voltage protection setting. Check the voltage difference between LCD and meter. Also need to check whether AC cables are all firmly and correctly connected.
F45	AC Line U,V over voltage	Check the AC voltage protection setting.And Check if the AC cable is too thin.Check the voltage difference between LCD and meter.
F46 AC Line U,V low voltage Check the AC voltage protection setting.
F47 AC Over frequency Check the frequency protection setting.
F48 AC lower frequency Check the frequency protection setting.
F49	U phase grid current DC component over current	Hardly appear the code. Never ever happened so far.
F50	V phase grid current DC component over current	Hardly appear the code. Never ever happened so far.
F51	W phase grid current DC component over current	Hardly appear the code. Never ever happened so far.
F52	AC inductor A, phase current DC current high	Hardly appear the code. Never ever happened so far.
F53	AC inductor B, phase current DC current high	Hardly appear the code. Never ever happened so far.
F54	AC inductor C, phase current DC current high	Hardly appear the code. Never ever happened so far.
F55	DC busbar voltage is too high	1. Check PV voltage and Ubus voltage and its detection circuit. If the PV input voltage exceeds the limit, please reduce the number of solar panels in series.2. For Ubus voltage, please check the LCD display.
Error code	Description Ongrid - Three Phase
F56	DC busbar voltage is too low	1. It tells the PV input voltage is low and it always happens in the early morning.2. Check PV voltage and Ubus voltage. When inverter is running, then showing F56, maybe Loss of driver or need update firmware.3. Restart the inverter, if the fault still exists, contact your installer or Deye service.
F57 AC reverse irrigation AC reverse irrigation.
F58 AC grid	U over current Hardly appear the code. Never ever happened so far.
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 happened so far.
F62 Reactor	B phase over current Hardly appear the code. Never ever happened so far.
F63	ARC fault	1. Check PV module cable connection and clear the fault;2. Seek help from us, if can not go back to normal state.
F64	IGBT heat sink high temperature	1. Check 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 still exists, contact your installer or Deye service.

Table10.1 Error codes and their solutions

Safety Hint:

If your string inverter has any of the fault information shown in Table 10-1, and when you reset the machine and still don’t solve the problem, please contact our distributor and provide the below details:

1. Serial number of the inverter;
2. The distributor/dealer of the inverter(if available);
3. Installation date;
4. The description of problem(include LCD'error code and LED status indicator lights);

5. Your contact details.

6. Specification

Model	SUN-18K-G04-LV	SUN-20K-G04-LV	SUN-21K-G04-LV
PV String Input Data
Max. PV Input Power(kW)	23.4	26	27.3
Max. PV Input Voltage(V)		800
Start-up Voltage(V)		250
MPPT Voltage Range(V)		200-700
Full Load MPPT Voltage Range(V)		300-700 300-700250-700
Rated PV Input Voltage(V)		350
Max. Input Short Circuit Current (A)		60+60
Max. Operating PV Input Current(A)		40+40
No. of MPP Trackers/No. of Strings per MPP Tracker		2/3+3
Max. Inverter Backfeed Current To the Array		0
AC Output Data
Rated AC Output Active Power(kW)	18	20	21
Max.AC Output Apparent Power(kVA)	18	20	21
Rated AC Output current (A)	47.3/45.2	52.5/50.2	55.2/52.7
Max.AC Output Current(A)	47.3/45.2	52.5/50.2	55.2/52.7
Rated Output voltage/range (V)	127V/220V, 133V/230V 0.85Un-1.1Un
Grid Connection Form	3L+N+PE
Rated Output Grid Frequency/range(Hz)	50Hz/45Hz-55Hz, 60Hz/55Hz-65Hz
Power Factor Adjustment Range	0.8 leading-0.8lagging
Total Current Harmonic Distortion THDi	<3%
DC Injection Current	<0.5%In
Efficiency
Max.Efficiency	98.6%
Euro Efficiency	98.1%
MPPT Efficiency >99%
Equipment Protection
DC Polarity Reverse Connection Protection	yes
AC Output Overcurrent Protection	yes
AC Output Overvoltage Protection	yes
AC Output Short Circuit Protection	yes
Thermal Protection	yes
DC Terminal Insulation Impedance Monitoring	yes
DC component monitoring	yes
Ground fault current monitoring	yes
Power Network Monitoring	yes
Island protection monitoring	yes
	yesEarth Fault Detection
	yesDC Input Switch
Overvoltage Load Drop Protection yes
Residual Current (RCD) Detection	yes
Surge Protection Level	TYPE II(DC),TYPE II(AC)

Interface
Communication Interface	RS485/RS232
Monitor Mode	GPRS/WIFI/Bluetooth/4G/LAN(optional)
Display	LCD+LED
General Data
Operating Temperature Range (°C)	-25 to +65°C,>45°C derating
Permissible Ambient Humidity	0-100%
Permissible Altitude (m)	2000m
Noise (dB)	≤ 50 dB
Ingress Protection(IP) Rating	IP 65
Inverter Topology	Non-Isolated
Over Voltage Category	OVC II(DC),OVC III(AC)
Cabinet Size (W*H*D) [mm]	362×577×215 (Excluding connectors and brackets)
Weight [kg]	23
Warranty [year]	Standard 5 years, extended warranty
	Intelligent air coolingType Of Cooling
Grid Regulation	IEC 61727, IEC 62116, CEI 0-21, EN 50549, NRS 097, RD 140, UNE 217002, OVE-Richtlinie R25, G99, VDE-AR-N 4105
Safety EMC/Standard	IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2

12. EU Declaration of Conformity

within the scope of the EU directives

• Electromagnetic compatibility 2014/30/EU (EMC)
- Low Voltage Directive 2014/35/EU (LVD)
- Restriction of the use of certain hazardous substances 2011/65/EU(RoHS)

NINGBO DEYE INVERTER TECHNOLOGY CO., LTD. confirms herewith that the products described in this document are in compliance with the fundamental requirements and other relevant provisions of the above mentioned directives. The entire EU Declaration of Conformity and certificate can be found at https://www.deyeinverter.com/download/#string-inverter.

EUDeclarationofConformity

Product:Grid-connectedPVInverter

Models:SUN-18K-G04;SUN-20K-G04;SUN-25K-G04;SUN-30K-G04;SUN-33K-G04;SUN-35K-G04;SUN-36K-G04; SUN-10K-G04-LV;SUN-12K-G04-LV;SUN-15K-G04-LV;SUN-18K-G04-LV;SUN-20K-G04-LV;SUN-21K-G04-LV; Nameandaddressofthemanufacturer:NingboDeyelnverterTechnologyCo.,Ltd.

No.26SouthYongJiangRoad,Daqi,Beilun,NingBo,China

This declaration of conformity is issued under the sole responsibility of the manufacturer. Also this product is undermanufacturer's warranty.

This declaration of conformity is not valid any longer: if the product is modified, supplemented or changed in any other way, as well as incasethe product is used or installed improperly.

TheobjectofthedeclarationdescribedaboveisinconformitywiththerelevantUnionharmonizationlegislation: TheLowVoltageDirective(LVD)2014/35/EU;theElectromagneticCompatibili ty(EMC)Directive2014/30/EU;the restrictionoftheuseofcertainhazardoussubstances(RoHS)Directive2011/65/EU.

Referencestotherelevantharmonizedstandardsusedorreferencestotheothertechnicalspecificationsin relationtowhichconformityisdeclared:

LVD:
EN62109-1:2010	●
EN62109-2:2011	●
EMC:
ENIEC61000-6-1:2019	●
ENIEC61000-6-2:2019	●
ENIEC61000-6-3:2021	●
ENIEC61000-6-4:2019	●
ENIEC61000-3-2:2019+A1:2021	●
EN61000-3-3:2013/A2:2021/AC:2022-01	●
ENIEC61000-3-11:2019	●
EN61000-3-12:2011	●
EN55011:2016/A2:2021	●

NometTitre/NameandTitle:

NingboDeyeInverterTechnologyCo.,Ltd.

2023-10-14

Ningbo,China

NingboDeyelnverterTechnologyCo.,Ltd.

No.26SouthYongJiangRoad,Daqi,Beilun,NingBo,China

NINGBO DEYE INVERTER TECHNOLOGY CO., LTD.

Add.: No.26 South YongJiang Road, Daqi, Beilun, NingBo, China.

30240301002769