SUN-10K-G03-LV - Solar installation Deye - Free user manual and instructions

Product Type	Grid-connected PV Inverter
Model	SUN-10K-G03-LV
Dimensions (W × H × D)	330 × 508 × 206 mm
Weight	20.8 kg
Rated Output Power	10 kW
Max Active Power	11 kW
Max DC Input Voltage	800 V
Start-up DC Input Voltage	250 V
MPPT Operating Voltage Range	200–700 V
Max DC Input Current	32 A + 32 A
Number of MPPT / Strings per MPPT	2 / 2
Rated AC Grid Voltage	127/220 V (Three-phase)
AC Grid Voltage Range	176–242 V (adjustable per grid standard)
Rated Grid Frequency	60 Hz / 50 Hz (selectable)
Rated AC Output Current	26.2 A
Output Power Factor	0.8 leading to 0.8 lagging
Max Efficiency	98.7%
Topology	Transformerless
Enclosure Protection Rating	IP65
Operating Temperature Range	-25 °C to 65 °C (derating above 45 °C)
Cooling Method	Smart cooling
Noise Emission	<45 dB
Display	LCD 1602 with LEDs
Interfaces	RS485 / RS232 / Wi-Fi / LAN
DC Connectors	MC4 compatible
AC Connector	IP65 rated plug
Optional Accessories	Datalogger, SUN limiter, Energy meter
Warranty / Designed Lifetime	>20 years

Frequently Asked Questions - SUN-10K-G03-LV Deye

What is the maximum DC input voltage for the SUN-10K-G03-LV?

The maximum DC input voltage is 800 V. Ensure the PV array open-circuit voltage does not exceed this limit under any conditions.

How do I start up the inverter?

First switch on the AC breaker, then turn on the DC switch. If the PV panels provide sufficient voltage and power, the inverter will start, perform a self-check, and begin generating power. The NORMAL indicator will light up.

What is the zero-export function and how to enable it?

The zero-export function prevents feeding power back to the grid. It can be implemented via a SUN limiter or an energy meter. After connecting the hardware, go to the LCD menu: Parameter setting > Running parameters, enter password 1234, then set 'Meter' or 'Limiter' to ON. The LCD will show 'Meter power XXW' or 'Utility power' when active.

What safety precautions must be taken during installation?

Warning: Disconnect AC first, then DC, and wait at least 5 minutes for discharge. Do not touch the inverter case during operation as it may exceed 80 °C. Use appropriate personal protective equipment. Ensure the installation is performed by qualified personnel following local electrical standards.

How can I monitor the inverter remotely?

The inverter supports wireless monitoring via an optional Wi-Fi Plug or datalogger. Connect the device to the inverter and configure it with the Solarman platform. You can then view real-time data on your smartphone or PC.

What does error code F35 mean?

Error code F35 indicates 'No AC grid'. Check the AC grid voltage, the AC connector, and the grid availability. Restart the inverter; if the fault persists, contact your installer.

What is the recommended maintenance for the inverter?

The inverter requires no regular maintenance. Periodic cleaning of the heat sink with a soft brush is recommended to remove dust. Use a damp cloth for the enclosure if needed. Turn off the inverter and let it cool before cleaning. Do not use solvents or abrasive materials.

Can I connect multiple inverters to the same circuit breaker?

No. Prohibit using a single circuit breaker for multiple inverters. Each inverter must have its own dedicated breaker to ensure safe operation and compliance with electrical codes.

What is the maximum altitude for operation?

The maximum operating altitude is 2000 meters. Above this altitude, derating may be required.

How do I obtain the latest manual?

The latest manual can be obtained by emailing [e-mail]. The contents are subject to change without notice due to product development.

USER MANUAL SUN-10K-G03-LV Deye

Grid-connected PV Inverter

SUN-10K-G03-LV

SUN-12K-G02-LV

SUN-15K-G02-LV

User Manual

Front view of a white electronic device labeled 'Darry' with control buttons and ports, set against a blue background (no readable text beyond branding)

Contents

1. Introduction - 01 -

1.1 Appearance Introduction - 01 -
1.2 Parts list - 02 -

1. Safety warnings and instructions - 03 -

2.1 Safety signs - 03 -
2.2 Safety instructions 03 -
2.3 Notes for using 04 -

1. Operation Interface 05 -

3.1 Interface View 05 -
3.2 Status Indicator 05 -
3.3 Buttons -06-
3.4 LCD Display - 06-

1. Product installation 07 -

4.1 Select installation location ...... - 07 -
4.2 Inverter Installation 09 -

1. Electrical Connection 11 -

5.1 DC input terminal connection - 11 -
5.2 AC input terminal connection 13 -
5.3 The connection of the ground line 16 -
5.4 Max. over current protection device - 17 -
5.5 Inverter monitoring connection 17 -
5.6 Installation of datalogger - 18 -
5.7 Configuration of Datalogger - 18 -

1. Startup and Shutdown - 18 -

6.1 Start up the inverter - 19 -
6.2 Inverter Shutdown - 19 -

1. Zero export function via SUN limiter - 20 -

7.1 SUN Limiter function wiring diagram - 20 -
7.2 Connect the SUN limiter to inverter 21 -
7.3 Use of zero export function 23 -
7.4 Zero-export function (Option) - 24 -
7.5 Notes while using zero export function ...... - 29 -
7.6 How to browse the load power of your PV grid-tieplant on monitoring platform - 29 -

1. General Operation - 31 -

8.1 The initial interface - 31-
8.2 Submenus in the Main Menu - 33 -
8.3 System param setting.... - 35 -
8.4 Running param set.... - 35 -
8.5 Protect Param - 47 -
8.6 Comm. param set - 49 -

1. Repair and Maintenance - 50 -

2. Error information and processing 50 -

10.1 Error code - 50 -

1. Specification - 55 -

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["House"]
    C --> D["Power Tower"]

Family load
Application of inverter in photovoltaic power system

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-10K-G03-LV, SUN-12K-G02-LV, SUN-15K-G02-LV.

The following is collectively referred to as "inverter".

Technical line drawing of a rectangular electronic device with ports and a central display (no text or symbols)

Pic 1.1 Front view Pic 1.2 Bottom view

1.2 Parts list

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

Grid-tied PV String Inverter x1

Technical line drawing of a rectangular frame with mounting holes and a central recessed cavity (no text or symbols)

Wall mounting bracket x1

Mounting stainless steel screws M4×12
x4

Technical line drawing of a cylindrical connector with multiple leads (no text or symbols)

AC power connectors x1

Technical line drawings of five different mechanical components or assemblies (no text or symbols present)

DC power connectors (including Inserted spring) x2

Four identical mechanical bolts with threaded ends, shown in a row (no text or symbols)

Stainless steel anti-collision bolt M6×80 x4

User manual x1 Datalogger (optional) x1

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

Simple diagram of a computer monitor with a green screen and control knob, no text or symbols present.

SUN limiter(optional) x 1

Simple line drawing of a mechanical component with an arrow indicating direction (no text or symbols)

*Sensor Clamp x 3
When ordering the sun limiter, it will includes 3pcs CT.

Meter(optional) x 1

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.

Strictly prohibit grounding the positive and negative poles of the PV string.

Otherwise it will damage 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 ℃ while under operating. Please do not touch the inverter case.

2.3 Notes for using

The three 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. When starting the inverters, first close the circuit breaker at the grid side, then close the DC side; when closing the inverters, first disconnect the circuit breaker at the AC side, then disconnect the DC side.
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
DC	on	Inverter detects DC input
	off	Low DC input voltage
AC	on	Grid Connected
	off	Grid Unavailable
NORMAL	on	Under normal operating
	off	Stop operating
ALARM	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).

Esc Up Down-Inter

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 100^ F / 40^ C .

Simple line drawing of a house under a sun, 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)

×

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 cloud and snowflake patterns 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 each inverter must be at least 500mm above and below. And must install the inverter at the place where children cannot touch. Please see picture 4.3.
• Consider whether the 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 no visible text or symbols

×

Pure technical line drawing of a mechanical component with no text or symbols

×

Technical line drawing of a mechanical assembly with no visible text or symbols

×

Technical line drawing of a mechanical assembly with a vertical wall and mounting bracket (no text or symbols)

√

√
Pic 4.2 Installation Angle

Pic 4.3 Installation Gap

4.2 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.

Vertical decorative pattern with alternating brown and orange rectangles (no text or symbols)

Pic 4.4 Inverter Installation

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 metal brackets 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 horizontally 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 or electrical enclosure with internal components and directional arrows indicating flow or movement (no text or symbols present)

Pic 4.6 Inverter installation

5 Electrical Connection

5.1 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.

Safety Hint:

Please don't connect PV array positive or negative pole to the ground, it could cause serious damages to the inverter.

Safety Hint:

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

Safety Hint:

Before connecting inverter, please make sure the PV array open circuit voltage is within the 1000V of the inverter.

Pic 5.2 DC- female connector (MC4)

Pic 5.1 DC+ male connector (MC4)

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)	4.0~6.0(12~10AWG)	4.0(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 two mechanical components with threaded ends and internal channels (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 drawings of mechanical components arranged in two rows (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:

Use the DC power connector of the accessories. Do not interconnect the connectors of different manufacturers.

5.2 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 specifications 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.

Model	Cable CSA	Cable outer dia	AWG	Breaker	Max cable length
SUN-10K/12K/15KW-LV	^2	15-18mm	810m	50A/400V	Outside cable(3+N+PE)20m

Table 5.2 Cable information

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 protective sheath and insulation layer of the AC cable to the right length, as shown in Picture 5.8.

Technical line drawing of a mechanical component with threaded end and flange (no text or symbols)

1

2

3

4

1. Matching socket 2. Sleeve 3. Sealing core 4. Sealing nut

Pic 5.7 AC connector structure

Step 3: Insert the cable (L1, L2, L3, N, PE) into the sealing sleeve.

3D illustration of a black cable with red and blue insulation layers (no text or symbols)

Pic 5.8 Strip AC cable

Warning:

Be careful to distinguish the L1, L2, L3, N and PE of the AC cables.

Step 4: Use the hexagon screwdriver, loosen the bolts of the socket in turn, and insert each cable core into the corresponding jack, and set each screw. The connection hole of AC connection terminal labeling is shown in Picture 5.9.

Pic 5.9 AC Connector Hole Pattern

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 connection

5.3 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.

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

Pic 5.11The installation of the shell ground wire

Warning:

Inverter has built-in leakage current detection circuit, If an external leakage current protection device is connected, its operating current must be greater than 300 mA or higher, otherwise inverter may not work properly.

5.4 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-10K-G03-LV	127 3526.2
SUN-12K-G02-LV	127 4031.5
SUN-15K-G02-LV	127 5039.4

Table 5.3 Recommended current protector specifications

5.5 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"] --> B["Router"]
    C["WIFI"] --> B
    B --> D["Internet"]
    E["Phone"] <--> D
    F["PC"] <--> D
    G["Web Server"] <--> D
    D <--> H["Wireless Device"]

Pic 5.12 Internet monitoring solution

5.6 Installation of datalogger

When the inverter is out of the factory, the location of the installation 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 tighten the screws. 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).

Pic 5.13 datalogger installation diagram

5.7 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 voltage of each set of photovoltaic modules shall not exceed 1000Vdc 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 start up the three phase string inverter, should fellow below steps:

1. First 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. When the ac voltage and DC voltage are normal, the inverter start-up is ready to begin. The inverter will first check the internal parameters and the grid parameters, while the liquid crystal will show that the inverter is self-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.

6.3 Anti-PID Function(option)

graph LR
    A["Input Device"] --> B["Inverter"]
    C["Input Device"] --> B
    D["Input Device"] --> B
    B --> E["PID"]
    E --> F["R"]
    E --> G["S"]
    E --> H["T"]
    E --> I["Waveform"]
    J["PE"] --> E
    K["PV+"] --> B
    L["PV-"] --> B
    M["V+"] --> B
    N["V-"] --> B

The Anti-PID module repairs the PID effect of the PV module at night. The PID module always runs when connected to AC.

If maintenance is required and turn off the AC switch can disable the Anti-PID function.

WARNING:

The PID functionality is automatic. When the DC bus voltage is below 50VDC, the PID module will create 450VDC between the PV and ground. No control and equipment are required.

NOTE:

If you need to maintain the inverter, Please turn off the AC switch first, then turn off the DC switch, and wait 5 minutes before you do other operations.

7 Zero export function via SUN limiter

The inverter has external zero export function. This function is optional. 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 function, an external zero export device ( SUN limiter or energy meter) will be included in the package which is necessary for the function. The SUN limiter shows as Pic 7.1. You can see corresponding line mark next to the green interface. The green terminals on the left are the interface of three-phase AC line (L1, L2, L3) and N Line (N), and the right are the interface between three sets of current sensor and one set of control terminals. SUN limiter will collect voltage and current from these interfaces and send control signals to the inverter.

Pic 7.1 SUN Limiter view

7.1 SUN Limiter function wiring diagram

When you are reading this, we believe that you have completed the connection according to the requirements of chapter 5, if you has been running your inverter, and you want to use the limiter function, please turn off AC and DC switch of the inverter, and wait for 5 minutes until the inverter completely discharged. In order to make it easier for you to use the limiter function, we have specifically given the wiring diagram, as shown in Picture 7.2, the yellow/green/red live line (L1,L2,L3) connected to the utility grid live line (U/V/W), blue line means the neutral line.

We recommend installing an AC switch between the inverter outlet and the utility grid, the specs of the AC switch is determined by the load capacity. The AC switch we recommend to connect to the inverter output refer to Table 5.2.

graph TD
    A["Solar panels"] --> B["Control signal"]
    C["Solar panels"] --> D["Control signal"]
    B --> E["Limiter"]
    D --> E
    E --> F["Distribution Box"]
    G["Load"] --> H["Sensor"]
    I["U"] --> J["Output"]
    K["V"] --> J
    L["W"] --> J
    M["N"] --> J
    N["L1(L), L1(K), L2(L), L2(K), L3(L), L3(K)"] --> E
    O["L1, L2, L3"] --> E
    P["L1(L), L1(K), L2(L), L2(K), L3(L), L3(K)"] --> E
    Q["L1, L2, L3"] --> E
    R["U"] --> J
    S["V"] --> J
    T["N"] --> J

Pic 7.2 Wiring diagram

7.2 Connect the SUN limiter to inverter

The SUN limiter will measure the voltage and current of three phases separately, and this manual only introduces the installation steps of one phase, the other two phases are the same. The specific installation steps are as follows:

(1) Connect SUN limiter to the grid. Connected to the grid is to measure the voltage of grid. Before connect to the grid, please turn off the switch to avoid the risk of electric shock. Choose one wire from the bottom of the three-phase DC switch. (any phase of U,V,W) to connect with L1 terminal, then tighten the line with a screwdriver.
(2) Connect SUN limiter to clamp senor. Clamp senor can measure the current of the AC side, it should be connected to the front side of the load (domestic appliance ect.) to achieve this function. Only when the SUN limiter collects the voltage and current of the same phase can it judge the power of the phase. So the clamp senor should be connected to the same phase as the before. Open the side buckle of the clamp senor, then clamp the senor to the AC line on the DC switch, the arrow direction on the senor should towards that of the load. The clamp senor has two lines (shown as below), and the white line corresponds to K terminal, black line corresponds to L terminal. Connect the white line to the L1(L) and L1(K) terminal refer to the line mark of the SUN limiter and tighten the line with screwdriver. This is the whole installation process of one phase.

Pic 7.3 Clamp Senor Pic 7.4 Clamp Senor internal arrow

(3) After you finish the installation in process 1 and 2, connect the N line (N) to the N terminal of the limiter and tighten 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. Twist the waterproof terminal and connect the red line to number 1 and black line to number 2 shown as the picture. After that connect the terminal to the interface of the SUN limiter. The other side of the line should be connected to the control terminal.

Pic 7.5 Waterproof terminal Pic 7.6 Connect limiter to inverter

Pic 7.7 Connect terminal to inverter

7.3 Use of zero export function

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

1. Turn on the AC switch
2. Turn on the DC switch, Waiting inverter LCD lighting up
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 figure 7.8, at this time please Input the default password 1234 through pressing the button [up down, confirm], enter the operation parameter setting interface, Shown as figure:

Pic7.8 Parameter setting

Pic 7.9 Limit switch

1. Operate the button [up down], move setting cursor to limit function and press the button [enter]. At this time you can turn on or turn off the limit function by choosing [up down] button, please press [enter] button to confirm when setting done.
2. Move the cursor to [confirm], 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 displayed as [utility power], the limiter function settings will be completed. Shown as picture 7.10.

Meter_OFF

ON « Limiter

Utility Provider

20W

\* This item is not available for some FW verison

Pic 7.10 Limiter function turn on

1. [utility power] showing positive means grid power is consuming energy, and there is no backflow. If [utility power] shows negative, which means there's excess PV energy flows to grid or current transformer arrow direction is in wrong direction. Please read more on chapter 7.9.
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 maintain a certain output to counteract the power of the grid without backflow.

7.4 Zero-export function (Option)

The string inverter supports zero-export function via Energy meter / SUN-Limiter. Based on continuously data communication, once the Limiter or energy meter detects power export to the grid, it will send the information to the inverter and then inverter will ramp down its active power according to match the load demand and achieve zero export. The Zero-export function is optional. If you buy the inverter with zero-export function via energy meter, energy meter will be included in the package which is necessary for zero-export function.

7.4.1 Zero-export function via energy meter

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 7.11 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.

RS 485

graph TD
    A["Level 1"] --> B["L1"]
    C["Level 2"] --> D["L2"]
    E["Level 3"] --> F["L3"]
    G["N"] --> H["End"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style E fill:#f9f,stroke:#333
    style G fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style D fill:#ccf,stroke:#333
    style F fill:#ccf,stroke:#333
    style H fill:#ccf,stroke:#333

Pic 7.11 Eastron meterEastron SDM630-Modbus V2

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

Pic 7.12 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 7.13 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 1"]
        H["GND 2"]
        I["RS 485 Female connector 3"]
        J["RS485 Communication GND 1"]
    end
    subgraph Inverter
        K["RS 485 Male connector 4"]
        L["RS485 Communication GND 2"]
    end
    subgraph Family Load
        M["N L3 L2 L1"]
        N["Note: the crowd direction towards the inverter"]
    end
    G --> I
    H --> I
    I --> J
    J --> K
    K --> L
    L --> M
    M --> N
    N --> O["Grid"]

Pic 7.13 Connection diagram of Eastron meter

CHINT DTSU666

Pic 7.14 CHINT 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["meter"]
    K --> L["L1 L2 L3 N"]
    L --> M["Grid"]

Pic 7.14 Connection diagram of CHINT meter

7.4.2 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 7.13, 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 7.14.

4. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 99.

Island OFF

OFF < Meter

Pic 7.14 Meter switch Pic 7.13 Paramet

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 7.15.

In order to Power 2011

Pic 7.15 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.

7.5 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:

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.

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.

(when using SUN limiter, the arrow of current sensor points to the load)

High Temperature Hazard:

When using SUN limiter, the current sensor of limiter function needs to be clamped on the fire line of the grid connected to the inverter, otherwise inverter cannot able to normal operate.

7.6 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.

graph LR
    A["Production Power 9.52 kW\nCapacity 30kWp"] --> B["Grid Power 6.87 kW"]
    C["Consumption Power 2.6 kW"] --> B

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"]
    H --> I["*Meter"]
    H --> J["*ImpEp and Total"]
    H --> K["*ExpEp and Total"]
    H --> L["*Load"]
    H --> M["*LoadEp and Total"]
    B --> N["Device information"]
    C --> O["Fault record"]
    D --> P["ON/OFF"]
    E --> Q["Setup"]
    F --> R["*PV VA"]
    P --> S["System param"]
    Q --> T["Running param"]
    R --> U["Protection param"]
    R --> V["Comm. param"]

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

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 infomation.

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 8.3 PV input voltage and current information

Pic 8.4 Load power

Pic 8.5 Grid voltage and current information

Pic 8.6 Grid voltage and frequency

Pic 8.9 Electrical energy

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

Pic 8.10 Electrical energy

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

LoadRep: 0,000kW

Total: 0,000.00

LoadEp: Daily consumption;

Total: Total energy consumption.

Pic 8.11 Load consumption

E.E.O.Y. : 00:00

E:Total : 1.34kWh

E-Day: Daily generation;

E-Total: Total generation.

Pic 8.12 PV generation

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 Ver0201 and control board software Ver1970. In this interface, there are parameters such as rated power communication addresses.

[1] [2] [3] [4]

The image contains no discernible text. The OCR result "F" is a hallucination and does not correspond to any content in the source image. Therefore, the correct OCR output is an empty string.

01:30:00 9:14-11

11.02.2.2.2.24.3.12

10:2222224332

Inv1400

Inv1400

LOGO239

Pic 8.13 Device information

8.2.2 Fault Record

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

Dewer Info.

Fault Record <

1 F:35 220125 08

2 F:48 2201:29 20

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.

8.2.4 PV VA setting

Pic 8.16 PV String current

Each PV string current and this function is optional.

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 8.17 Submenus of the parameter setup

8.3 System param setting

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

Pic 8.18 System Param

Pic 8.19 Time

Pic 8.20 Language

Pic 8.21 LCD Screen settings

Pic 8.22 Delay time set

Pic 8.23 Reset to factory setting

Password required-- only for access-authorized engineer. Un-authorized access may avoid the warranty. The initial password is 1234.

Pass-Word

* * * *

Pic 8.25 Password

Pic 8.26

NAME DESCRIPTION		RANGE
ActiveP	Adjust the output active power in % 0-110%
Q-Mode	Multiple reactive power control modes	OFF/Q(P)/PF(P)/Q(U)/PF/Q(%)
Vref	Grid reference voltage for functions including Q(U),PF(P),P(U)etc.	80-260V
ReactP	Adjust reactive power output in %	0-100%
PF	Power Fator	-0.8~+0.8
Fun_ISO	Insulation resistance detection	ON/OFF
Fun_RCD	Residual current detection	ON/OFF
Self-check	Inverter's self-check time.The default value 60s	0-1000s
Island	Anti-islanding protection	ON/OFF
Meter	Energy meter.If inverter will connect meter,then set here to ON	ON/OFF
Limiter	If inverter will connect SUN limiter,then set here to ON	ON/OFF
Feed_IN %	It is used to deploy how much power can be feed in to grid.(For example, Feed_in=50% of the 36KW model, which means Max. 18KW .power can be feed into grid. And, this parameter is valid only after connecting a meter and the meter function is "ON").	0-100%

We are

AIRC OFF <

The image contains no discernible text or characters. It is a graphical representation of pixelated blocks on a solid green background. Therefore, the correct OCR output is an empty string.

PARC CLR < ...

Wind Turbine

PARK ON

Pic 8.27

ARC ON

OFF-00000000 OFF < ...

ARC ON

OF...DER...DO...HYS

ARC ON

01-02-03 04

UP-UP-FALL-01-OFF:

Wora 0,000%

UF-Upgrade HYS < -

WORK: 0,000%

WIPWAN ON

WiGa: 0.000%

UIGra 0.0% < <

WGrStr 0.0x

19 20

PowerLim : :

LUST OFF

HURT OFF

DRAM OFF

Sumspecies OFF <

SUNTERIOR OFF 2:

OK Cancel <

Pic 8.28

NAME	DESCRIPTION RANGE
ARC	Arc-fault detection function ON/OFF/CLR
OF-Derate	Active power response to over-frequency	ON/OFF/HYS
UF-Uprate	Active power response to under-frequency	ON/OFF
PU	power response to grid voltage deviation	ON/OFF
LVRT	voltage ride through function	ON/OFF
HVRT	voltage ride through function	ON/OFF
PowerLim		ON/OFFHard/soft
DRM		ON/OFFDemand R
Sunspec		ON/OFFSunspec F

Over-frequency Response

This series inverter provides "over-frequency response" function.

Long pressing the "OFD Mode" to enter the "over-frequency response" setting menu.

ARC

ON

OF-Derivate

ON < ...

ARC

ON

OF-OMOEL

HYS

ARC

ON

OF-Derivate

OFF < ...

Tab. 11-4 Definition of Over-frequency Response Parameters

Parameter	Range	Description
Fstr	45HZ-65HZ	The Start frequency value for over-frequency response.
Fstop	45HZ-65HZ	The Stop frequency value for over-frequency response.
RecPT	45HZ-65HZ	In hysteresis mode, power is restored only when it is below this frequency
RecGra	[3,500] 0.01%Pmax/s	Rate of Power recovery(Percentage of active power)

For example, StrtPT: 50.5Hz, StopPT: 51.5Hz, RecPT: 50.1Hz, when the grid frequency increases beyond Start: 50.5Hz, the inverter will linearly reduce the power output with a gradient of 100% Pmax/Hz until it reaches StopPT: 51.5Hz.

Fstar

50,50Hz

Fstop

51,50Hz

Fig. 11-3 Frq-Watt Mode for Over-frequency Conditions

When the frequency exceeds StopPT: 51.5Hz, the inverter output should stop (ie 0 W). When the frequency is lower than StopPT: 51.5 Hz, the inverter will linearly increase the power output with a gradient of 100% Pmax/Hz until it reaches StrtPT: 50.5 Hz. In the hysteresis mode, when the frequency is lower than StopPT: 51.5 Hz, the inverter will not increase the power output until it is lower than RecPT: 50.1 Hz.

Freq 50.1GHz

Reogra 0.00% <<

PEA:0116 01.00

OK 44 Cancel

The inverter provides a reactive power regulation function.

Tap Reactive Power Regulation Mode to select proper regulation mode and set the corresponding parameters.

ActiveP 0x

B-Mode OFF <

HochinP 0.5

D-Mode 0.1 P3 <

ActiveP 0x

Q-Mode PF(P) <<

ActiveP 0x

Q-Mode Q(0) <<

ActiveP 0x

Q-Mode PF: x

ActiveP 0x

0-Mode 0.1:34:5

Pic 8.29

- "OFF" Mode

The reactive power regulation function is disabled. The PF is fixed at +1.000

• Q(%)

Adjust reactive power output in %.

- "PF" Mode

The power factor (PF) is fixed and the reactive power is regulated by the parameter PF. The PF ranges from 0.8 leading to 0.8 lagging.

• Leading: the inverter is sourcing reactive power to the grid.
• Lagging: the inverter is injecting reactive power into the grid.

- "Q(U)" Mode

The reactive power output of the inverter varies in response to the grid voltage.

- "Q(P)" Mode

The reactive power output by the inverter is controlled by the active power of the inverter.

- "PF(P)" Mode

The PF is controlled by the active power of the inverter.

“Q(U)” Mode

ActiveP 0%QMode Q(U) < -	Pstart 0.0x << Pstop 20.0x
RmpTime 0sPtUsed 0 <<	U1 0.0x << Q1 0.0x
U2 0.0x << Q2 0.0x	U3 0.0x << Q3 0.0x
U4 0.0x << U4 0.0x	U5 0.0x << Q5 0.0x
U6 130.0x << Q6 30.0x	Q6 0.0xOK Cancel <<

Pic 8.30

Pic 8.38 Reactive Power Regulation Curve in Q(U) Curve

parameter Range description
Pstart	0%-130% Rate out power	The QU mode starts when the active power is greater than this value
Pstop	0%-130% Rate out power	The QU mode stops when the active power is less than this value
Q1	-60% -60% Q/Pn	Value of Q/Pn at point (U1,Q1) on the Q(U) mode curve
V1	0-110% VRated	Grid voltage limit at point (U1,Q1) on the Q(U) mode curve
Q2	-60% -60% Q/Pn	Value of Q/Pn at point (U2,Q2) on the Q(U) mode curve
V2	0-110% VRated	Grid voltage limit at point (U2,Q2) on the Q(U) mode curve
Q3	-60% -60% Q/Pn	Value of Q/Pn at point (U3,Q3) on the Q(U) mode curve
V3	0-110% VRated	Grid voltage limit at point (U3,Q3) on the Q(U) mode curve
Q4	-60% -60% Q/Pn	Value of Q/Pn at point (U4,Q4) on the Q(U) mode curve
V4	0-110% VRated	Grid voltage limit at point (U4,Q4) on the Q(U) mode curve
Q5	-60% -60% Q/Pn	Value of Q/Pn at point (U5,Q5) on the Q(U) mode curve
V5	0-110% VRated	Grid voltage limit at point (U5,Q5) on the Q(U) mode curve
Q6	-60% -60% Q/Pn	Value of Q/Pn at point (U6,Q6) on the Q(U) mode curve
V6	0-110% VRated	Grid voltage limit at point (U6,Q6) on the Q(U) mode curve
RMpTime	0-1000s	Increase or decrease the time required for the reactive power to reach the specified value of the curve.

"Q(U)" Mode Parameters Explanation

“Q(P)” Mode

The reactive power output by the inverter is controlled by the active power of the inverter.

Pic 8.31 Reactive Power Regulation Curve in Q(P) Mode

parameter	Range description
P1	0%-100% Pn	Value of Q/Pn at point (P1,Q1) on the Q(P) mode curve
Q1	-60% -60% Q/Pn	Grid voltage limit at point (P1,Q1) on the Q(P) mode curve
P2	0%-100% Pn	Value of Q/Pn at point (P2,Q2) on the Q(P) mode curve
Q2	-60% -60% Q/Pn	Grid voltage limit at point (P2,Q2) on the Q(P) mode curve
P3	0%-100% Pn	Value of Q/Pn at point (P3,Q3) on the Q(P) mode curve
Q3	-60% -60% Q/Pn	Grid voltage limit at point (P3,Q3) on the Q(P) mode curve
P4	0%-100% Pn	Value of Q/Pn at point (P4,Q4) on the Q(P) mode curve
Q4	-60% -60% Q/Pn	Grid voltage limit at point (P4,Q4) on the Q(P) mode curve
P5	0%-100% Pn	Value of Q/Pn at point (P5,Q5) on the Q(P) mode curve
Q5	-60% -60% Q/Pn	Grid voltage limit at point (P5,Q5) on the Q(P) mode curve
P6	0%-100% Pn	Value of Q/Pn at point (P6,Q6) on the Q(P) mode curve
Q6	-60% -60% Q/Pn	Grid voltage limit at point (P6,Q6) on the Q(P) mode curve

"Q(P)" Mode Parameters Explanation

8.5 Protect Param

Note:

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

P. J. J. J.

GridStandard <

Advanced

Pic 8.32 Password

[1] M. 2017

EN50549

CUSTOM

VOE 41.05

CE1 0 21

099 099 4

NPS/T 32004

OK & C

Overfrem	Lvl
Point	52,0MHz

UnderFreq	Lvl
Point	48,00Hz <<

OverLimit	Lvl
Delay	100ms

Unicorn	LVI
Double	JIMIRIS

UnderVolt	LuZ
Delay	1000ms

UnderVolt	Lw3
Delay	1000ms

OverFreq	Lv3
Delay	1000ms <<

OverFreq	Lv2
Delay	100ms <<

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.

8.6 Comm. param set

Pic 8.34 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.

Warning:

When the device is running, the local temperature is too high and the touch can cause burns. Turn off the inverter and wait for it cooling, then you can clean and maintain.

Warning:

No solvent, abrasive materials or corrosive materials can be 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.
F06	Write the memory error	Failure in writing memory (EEPROM). Restart the inverter if the fault still exists, contact your installer.
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.
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	Working mode changed/Grid mode changed	1. Lost of one phase or AC voltage detection circuit or relays not closed (old inverter not have relays detection function).2. Restart the inverter, if the error still exists, please contact your installer.
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.
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.
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.
F19		Hardly appear the code. Never ever happened so far.All hardware
Error code	Description Ongrid - Three Phase
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.
F21		Hardly appear the code. Never ever happened so far.DC leakage flow fault
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.
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.
F25	DC feedback 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.
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.
F31	Dc boost soft start	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.
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.
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.
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	It tells the PV input voltage is low and it always happens in the early morning.Check PV voltage and Ubus voltage. When inverter is running, then showing F56, maybe Loss of driver or need update firmware.Restart the inverter, if the fault still exists, contact your installer.
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	Check PV module cable connection and clear the fault;Seek help from us, if can not go back to normal state.
F64	IGBT heat sink high temperature	Check temperature sensor. Check if firmware is suitable for the hardware. Check if the inverter is its right model.Restart the inverter, if the fault still exists, contact your installer.

Table10.1 Error codes and their solutions

Note:

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 discription of problem(include LCD'error code and LED status indicator lights);

5. Your contact details.

6. Specification

Model	SUN-10K-G03-LV	SUN-12K-G02-LV	SUN-15K-G02-LV
Input Side
Max.DC Power(kW)	13	15.6	19.5
Max.DC Input Voltage(V)		800
Start-up DC Input Voltage(V)		250
MPPT Operating Range(V)		200~700
Max.DC Input Current(A)		32+32
Max. Short Circuit Current (A)		48+48
Number of MPPT/Strings per MPPT 2/22/2 2/2
MAX inverter backfeed current (A)		0
Output Side
Rated Output Power(kW)	10	12	15
Max.Active Power(kW)	11	13.2	16.5
Rated AC Grid Voltage(V)		127/220
AC Grid Voltage Range(V)	176~242 (this may vary with grid standards)
Rated Grid Frequency(Hz)	60 / 50 (Optional)
Operating Phase	Three phase
Rated AC Grid Output Current(A)	26.2	31.5	39.4
Max.AC Output Current(A)	28.9	34.6	43.3
Maximum output fault current (a.c. A, peak )		60.150.0 75.2
Maximum output overcurrent protection (a.c. A,peak)		66.855.6 83.6
Output Power Factor	0.8 leading~0.8 lagging
	<3%Grid Current THD
DC Injection Current(mA)	<0.5%
Grid Frequency Range	57-62
Efficiency
Max.Efficiency	98.7%
Euro Efficiency	98%
	>99%MPPT Efficiency
General Data
Size(mm, W×H×D)	330×508×206
	20.8Weight(kg)
Topology	Transformerless
	<1W(Night)Internal consumption
Operating temperature	-25 ~ 65 °C, >45 °C derating
Ingress protection IP65
Noise Emission(Typical)	<45dB
Cooling Concept	Smart cooling
Max. operation altitude	2000m
	>20 YearsDesigned Lifetime
Grid Connection Standard	CEI 0-21,VDE-AR-N 4105,NRS 097,IEC 62116,IEC 61727,G99,G98,VDE 0126-1-1,RD 1699,C10-11
Operation surrounding humidity 0~100%
Safety EMC / Standard	IEC/EN 62109-1,IEC/EN 62109-2,IEC/EN 61000-6-1,IEC/EN 61000-6-2,IEC/EN 61000-6-3,IEC/EN 61000-6-4
General Data
	MC-4 mateableDC Connection
	IP65 rated plugAC Connection
	LCD1602Display
	RS485/RS232/Wifi/LANInterface

NINGBO DEYE INVERTER TECHNOLOGY CO., LTD.

Add: No.26-30, South Yongjiang Road, Beilun, 315806, Ningbo, China

Tel: [phone]

Fax: [phone]

E-mail: [e-mail]

Web: www.deyeinverter.com

30240301000776 Ver: 2.2, 2022-02-21