SUN-25K-SG01HP3-EU-BM2 - Battery charger Deye - Free user manual and instructions

Product Type	Hybrid Inverter / Battery Charger
Brand	Deye
Model	SUN-25K-SG01HP3-EU-BM2
Battery Type	Li-Ion (BMS communication)
Battery Voltage Range	160-800 V
Max Charging Current	50+50 A (dual battery input)
Max Discharging Current	50+50 A
PV Input Voltage (Max)	1000 V
MPPT Voltage Range	150-850 V
Number of MPPT Trackers	3
AC Output	230/400 V, 3-phase, 50/60 Hz
Rated Output Power	25,000 W
Max Efficiency	97.6%
Protection Degree	IP65
Dimensions (W×H×D)	527 × 894 × 294 mm
Weight	80 kg
Operating Temperature	-40 to 60 °C (derating above 45 °C)
Cooling	Smart cooling (fan)
Noise Level	≤ 65 dB
Communication Interfaces	RS485, CAN, WiFi (optional dongle)
Warranty	5 years

Frequently Asked Questions - SUN-25K-SG01HP3-EU-BM2 Deye

Can this inverter operate without a battery?

Yes, the SUN-25K-SG01HP3-EU-BM2 can function in hybrid mode without a battery by enabling the 'No Batt' setting. In this case, PV and grid power the loads directly.

What battery types are compatible?

The inverter is primarily designed for Li-Ion batteries with BMS communication via CAN or RS485. Lead-acid batteries (AGM, Gel, Flooded) are also supported but must be configured manually.

What is the maximum PV input power?

The maximum DC input power is configurable; for the 25kW model, it typically supports up to 38,870 W (as per similar models), but check local regulations for exact limits.

How do I connect the inverter to the grid?

Use a separate AC breaker (recommended 240A) between the inverter and the grid. Connect the grid to the 'Grid' terminal block following polarity (L1, L2, L3, N, PE). Ensure the grid is disconnected during installation.

Can I use a generator with this inverter?

Yes, the inverter has a dedicated generator input port. A dry contact signal (GS) can automatically start a compatible generator when battery SOC drops below a set threshold.

How do I set zero export to grid?

Go to the System Work Mode menu and select 'Zero Export To CT' or 'Zero Export To Load'. In 'Zero Export To CT', an external CT clamp is required on the grid line to prevent backfeeding.

What does the alarm LED indicate?

A solid red Alarm LED indicates a malfunction or warning. Check the LCD for error codes (F01 to F64) and refer to the manual for troubleshooting steps.

Is the inverter suitable for outdoor installation?

Yes, the inverter has an IP65 protection rating, making it dust-tight and protected against low-pressure water jets. However, avoid direct sunlight and extreme weather.

How do I update the firmware?

Firmware updates are typically performed via the WiFi datalogger (optional) using the Deye monitoring app or platform. Contact your installer for the latest firmware files.

What is the recommended battery capacity?

The inverter supports up to 50A charge/discharge per battery port (total 100A). For Li-Ion, use 50% of Ah capacity; for AGM, 20%. Refer to the battery manufacturer's guidelines.

USER MANUAL SUN-25K-SG01HP3-EU-BM2 Deye

SUN-29.9K-SG01HP3-EU-BM3

SUN-30K-SG01HP3-EU-BM3

SUN-35K-SG01HP3-EU-BM3

SUN-40K-SG01HP3-EU-BM4

SUN-50K-SG01HP3-EU-BM4

User Manual

Contents

1. Safety Introductions 01
2. Product instructions 02-05

2.1 Product Overview
2.2 Product Size
2.3 Product Features
2.4 Basic System Architecture
2.5 Product handling requirements

1. Installation 05-25

3.1 Parts list
3.2 Mounting instructions
3.3 Battery connection
3.4 Grid connection and backup load connection
3.5 PV Connection
3.6 CT Connection
3.6.1 Meter Connection
3.7 Earth Connection(mandatory)
3.8 WIFI Connection
3.9 Wiring System for Inverter
3.10 Wiring diagram
3.11 Typical application diagram of diesel generator
3.12 phase parallel connection diagram

1. OPERATION 26

4.1 Power ON/OFF
4.2 Operation and Display Panel

1. LCD Display Icons 27-39

5.1 Main Screen
5.2 Solar Power Curve
5.3 Curve Page-Solar & Load & Grid
5.4 System Setup Menu
5.5 Basic Setup Menu
5.6 Battery Setup Menu
5.7 System Work Mode Setup Menu
5.8 Grid Setup Menu
5.9 Generator Port Use Setup Menu
5.10 Advanced Function Setup Menu
5.11 Device Info Setup Menu

1. Mode 39-40

2. Limitation of Liability 40-44

3. Datasheet 45-46
4. Appendix I 47-48
5. Appendix II 49....

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]

1. Safety Introductions

Safety signs

The DC input terminals of the inverter must not be grounded.

Surface high temperature, Please do not touch the inverter case.

The AC and DC circuits must be disconnected separately, and the maintenance personnel

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

must wait for 5 minutes before they are completely powered off before they can start working.

Please read the instructions carefully before use.

Do Not put it in the waste bin! Recycle it by licensed professional!

• This chapter contains important safety and operating instructions. Read and keep this manual for future reference.
• Before using the inverter, please read the instructions and warning signs of the battery and corresponding sections in the instruction manual.
• Do not disassemble the inverter. If you need maintenance or repair, take it to a professional service center.
• Improper reassembly may result in electric shock or fire.
• To reduce risk of electric shock, disconnect all wires before attempting any maintenance or cleaning. Turning off the unit will not reduce this risk.
• Caution: Only qualified personnel can install this device with battery.
• Never charge a frozen battery.
• For optimum operation of this inverter, please follow required specification to select appropriate cable size. It is very important to correctly operate this inverter.
• Be very cautious when working with metal tools on or around batteries. Dropping a tool may cause a spark or short circuit in batteries or other electrical parts, even cause an explosion.
• Please strictly follow installation procedure when you want to disconnect AC or DC terminals. Please refer to "Installation" section of this manual for the details.
• Grounding instructions - this inverter should be connected to a permanent grounded wiring system. Be sure to comply with local requirements and regulation to install this inverter.
• Never cause AC output and DC input short circuited. Do not connect to the mains when DC input short circuits.

2. Product Introductions

This is a multifunctional inverter, combining functions of inverter, solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user configurable and easy accessible button operation such as battery charging, AC/solar charging, and acceptable input voltage based on different applications.

2.1 Product Overview

1: Inverter indicators

2: LCD display

3: Function buttons

4: Power on/off button

5: DC switch

6: Meter port

7: Parallel port

8: CAN port

9: DRM port

10: BMS port

11: RS485 port

12: Generator input 18: WiFi Interface

13: Grid

14: Function port

15: Load

16: PV input

17: Battery input

2.2 Product Size

Inverter Size

2.3 Product Features

• 230V/400V Three phase Pure sine wave inverter.
• Self-consumption and feed-in to the grid.
• Auto restart while AC is recovering.
• Programmable supply priority for battery or grid.
• Programmable multiple operation modes: On grid, off grid and UPS.
• Configurable battery charging current/voltage based on applications by LCD setting.
• Configurable AC/Solar/Generator Charger priority by LCD setting.
• Compatible with mains voltage or generator power.
• Overload/over temperature/short circuit protection.
• Smart battery charger design for optimized battery performance
• With limit function, prevent excess power overflow to the grid.
• Supporting WIFI monitoring and build-in 2 strings for 1 MPP tracker, 1 string for 1 MPP tracker.
• Smart settable three stages MPPT charging for optimized battery performance.
• Time of use function.
• Smart Load Function.

2.4 Basic System Architecture

The following illustration shows basic application of this inverter.

It also includes following devices to have a complete running system.

- Generator or Utility

- PV modules

Consult with your system integrator for other possible system architectures depending on your requirements.

This inverter can power all kinds of appliances in home or office environment, including motor type appliances such as refrigerator and air conditioner.

graph TD
    Solar["Solar"] -->|Wireless| GridCell["Grid Cell"]
    Battery["Battery"] -->|Wireless| GridCell
    GridCell -->|AC cable DC cable| PhoneCloud["phoneCloud services"]
    PhoneCloud -->|Wireless| WiFi["WiFi"]
    WiFi -->|Wireless| GPRS["GPRS"]
    WiFi -->|Wireless| Cloud["Cloud"]
    Cloud -->|Wireless| PhoneCloud
    PhoneCloud -->|Wireless| TV["TV"]
    TV -->|Wireless| GridBackup["Grid Backup Load"]
    GridBackup -->|Wireless| CT["CT"]
    GridBackup -->|Wireless| InverterInverterInverter["Grid-connected Inverter Smart Load"]
    GridBackup -->|Wireless| Generator["Generator"]
    Generator -->|Wireless| ATS["ATS"]

2.5 Product handling requirements

Two people stand on both sides of the machine, holding two handles to lift the machine.

Technical line drawing of an electronic device with cooling fans and heat exchangers (no text or symbols)

transport

3. Installation

3.1 Parts List

Check the equipment before installation. Please make sure nothing is damaged in the package. You should have received the items in the following package:

Stainless steel mounting screws M4*12 x2

3.2 Mounting instructions

Installation Precaution

This Hybrid inverter is designed for outdoor use(IP65), Please make sure the installation site meets below conditions:

• Not in direct sunlight
  · Not in areas where highly flammable materials are stored.
• Not in potential explosive areas.
• Not in the cool air directly.
  · Not near the television Antenna or antenna cable.
  · Not higher than altitude of about 2000 meters above sea level.
  · Not in environment of precipitation or humidity(>95%)

Please AVOID direct sunlight, rain exposure, snow laying up during installation and operation. Before connecting all wires, please take off the metal cover by removing screws as shown below:

Technical line drawing of an electronic device casing with internal components and mounting hardware (no text or symbols)

Considering the following points before selecting where to install:

• Please select a vertical wall with load-bearing capacity for installation, suitable for installation on concrete or other non-flammable surfaces, installation is shown below.
  · Install this inverter at eye level in order to allow the LCD display to be read at all times.
• The ambient temperature is recommended to be between -40\~60°C to ensure optimal operation.
• Be sure to keep other objects and surfaces as shown in the diagram to guarantee sufficient heat dissipation and have enough space for removing wires.

For proper air circulation to dissipate heat, allow a clearance of approx. 50cm to the side and approx. 50cm above and below the unit. And 100cm to the front.

Mounting the inverter

Remember that this inverter is heavy! Please be careful when lifting out from the package. Choose the recommend drill head(as shown in below pic) to drill 4 holes on the wall, 62-70mm deep.

1. Use a proper hammer to fit the expansion bolt into the holes.
2. Carry the inverter and holding it, make sure the hanger aim at the expansion bolt, fix the inverter on the wall.
3. Fasten the screw head of the expansion bolt to finish the mounting.

Technical diagram of a wall-mounted bracket assembly with two metal rods and blue alignment lines (no text or symbols)

Inverter hanging plate installation

Diagram of a server rack with a blue downward arrow indicating compression or disassembly (no text or symbols present)

3.3 Battery connection

For safe operation and compliance, a separate DC over-current protector or disconnect device is required between the battery and the inverter. In some applications, switching devices may not be required but over-current protectors are still required. Refer to the typical amperage in the table below for the required fuse or circuit breaker size.

Pic 3.1 BAT+ plug connector

Pic 3.2 BAT- plug connector

Safety Hint:

Please use approved DC cable for battery system.

Model	Cross section (mm2)
	Range Recommended value
29.9/30/35/40/50kW	16.0~25.0(6~4AWG)	16.0(6AWG)

Chart 3-2

The steps to assemble the battery plug connectors are listed as follows: a) Pass the cable through the terminal. (as shown in picture 3.3)

Simple line drawing of a cylindrical object with internal layered structure (no text or symbols)

Pic 3.3

b) Put on the rubber ring. (as shown in picture 3.4)

Pure mechanical component diagram without any text, numbers, or symbols

Pic 3.4

c) crimp terminals. (as shown in picture 3.5)

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

Pic 3.5

d) Fasten terminal with a bolt. (as shown in picture 3.6)

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

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

Pic 3.6

e) Fasten the terminal with outer cover. (as shown in picture 3.7)

Technical line drawing of a mechanical component with layered structure (no text or symbols)

Pic 3.7

3.3.2 Function port definition

Pure electrical circuit lines without any symbols

Inverter

Technical line drawing of an electrical enclosure with internal components and wiring (no text or labels)

CN1:
CT-R (1,2,7,8): current transformer (CT-R) for "zero export to CT" mode clamps on L1 when in three phase system.
CT-S (3,4,9,10): current transformer (CT-S) for "zero export to CT" mode clamps on L2 when in three phase system.
CT-T (5,6,11,12): current transformer (CT-T) for "zero export to CT" mode clamps on L3 when in three phase system.
CN2:
G-start (1,2): dry contact signal for startup the diesel generator. When the "GEN signal" is active, the open contact (GS) will switch on (no voltage output).
DRY-1 (3,4): Dry contact output. When the inverter is in off-grid mode and the "signal island mode" is checked, the dry contact will switch on. DRY-2 (5,6): reserved.
RSD+, RSD- (7,8): When battery is connected and the inverter is in "ON" status, it will provide 12Vdc.
SHUT DOWN (9,10,11,12): when the terminal "B" & "B" is short-circuited with additional wire connection, or there's 12Vdc input at the terminal "+ & - ", then the 12Vdc of RSD+ & RSD- will disappear immediately.

Meter: for energy meter communication.
Parallel_1: Parallel communication port 1.
Parallel_2: Parallel communication port 2.
CAN: reserved.
DRM: Logic interface for AS/NZS 4777.2:2020.
BMS1: BMS port for battery communication port 1.
BMS2: BMS port for battery communication port 2.
RS485: RS485 port.

GS (diesel generator startup signal)

3.4 Grid connection and backup load connection

- Before connecting to the grid, a separate AC breaker must be installed between the inverter and the grid, and also between the backup load and the inverter. This will ensure the inverter can be securely disconnected during maintenance and fully protected from over current. For the 29.9/30/35/40/50kW model, the recommended AC breaker for backup load is 240A. For the 29.9/30/35/40/50kW model, the recommended AC breaker for grid is 240A.

- There are three terminal blocks with "Grid" "Load" and "GEN" markings. Please do not misconnect input and output connectors.

All wiring must be performed by a qualified personnel. It is very important for system safety and efficient operation to use appropriate cable for AC input connection. To reduce risk of injury, please use the proper recommended cable as below.

backup load connection(Copper wires)

Model Wire Size		Cable( mm^2 )	Torque value(max)
29.9/30/35/40/50kW	4/0AWG	107	28.2Nm

Grid connection(Copper wires)

Model Wire Size		Cable( mm^2 )	Torque value(max)
29.9/30/35/40/50kW	4/0AWG	107	28.2Nm

Chart 3-3 Recommended Size for AC wires

Please follow below steps to implement Grid, load and Gen port connection:

1. Before making Grid, load and Gen port connection, be sure to turn off AC breaker or disconnector first.
2. Remove insulation sleeve 10mm length, insert the wires according to polarities indicated on the terminal block. Make sure the connection is complete.

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

1. Then, insert AC output wires according to polarities indicated on the terminal block and tighten terminal. Be sure to connect corresponding N wires and PE wires to related terminals as well.
2. Make sure the wires are securely connected.
3. Appliances such as air conditioner are required at least 2-3 minutes to restart because it is required to have enough time to balance refrigerant gas inside of circuit. If a power shortage occurs and recovers in short time, it will cause damage to your connected appliances. To prevent this kind of damage, please check manufacturer of air conditioner if it is equipped with time-delay function before installation. Otherwise, this inverter will trigger overload fault and cut off output to protect your appliance but sometimes it still causes internal damage to the air conditioner

3.5 PV Connection

Before connecting to PV modules, please install a separately DC circuit breaker between inverter and PV modules. It is very important for system safety and efficient operation to use appropriate cable for PV module connection.

To avoid any malfunction, do not connect any PV modules with possible leakage current to the inverter. For example, grounded PV modules will cause leakage current to the inverter. When using PV modules, please ensure the PV+ & PV- of solar panel is not connected to the system ground bar.

It is requested to use PV junction box with surge protection. Otherwise, it will cause damage on inverter when lightning occurs on PV modules.

3.5.1 PV Module Selection:

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

1) Open circuit Voltage (Voc) of PV modules can not exceed 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		30kW			50kW40kW29.9
PV Input Voltage	600V (180V~1000V)
PV Array MPPT Voltage Range	150V-850V
No. of MPP Trackers	3			4
No. of Strings per MPP Tracker	2+2+2 2+2+2+2

Chart 3-5

3.5.2 PV Module Wire 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:

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 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 5.1 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(12~10AWG)	2.5(12AWG)

Chart 3-6

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.

Two identical line drawings of a mechanical component with no text or symbols

Crimping plier ____

Line drawing of a pair of scissors or pliers with handles and clamps (no text or symbols)

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 drawing of mechanical components with no visible text or symbols

Three identical mechanical components arranged vertically, no text or symbols visible

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. Please do not switch off DC isolator when the DC current when there is high voltage or current. Technicians need to wait until night to keep safety.

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.

*Note: when the reading of the load power on the LCD is not correct, please reverse the CT arrow.

3.6.1 Meter Connection

graph TD
    A["Inverter"] --> B["Home Load"]
    B --> C["AC Breaker"]
    C --> D["Grid"]
    subgraph HomeLoad
        E["RS485A"] --> F["RS485B"]
        G["RS485B"] --> H["AC Breaker"]
        I["AC Breaker"] --> J["Home Load"]
        K["Home Load"] --> L["Grid"]
    end
    M["CT1"] --> N["CT2"]
    O["CT2"] --> P["CT3"]
    Q["CT3"] --> R["Blue line"]
    Q --> S["White line"]
    T["Blue line"] --> U["White line"]
    V["Blue line"] --> W["White line"]
    X["Blue line"] --> Y["White line"]
    Z["PE"] --> AA["PE"]
    AB["N"] --> AC["L1"]
    AD["L2"] --> AE["L2"]
    AF["L3"] --> AG["L3"]
    AH["GRID"] --> AI["N L1 L2 L3"]

CHNT DTSU666
PIN 13,16,19: White cable of the CT
PIN 14,17,21: Blue cable of the CT

graph TD
    A["Inverter"] --> B["AC Breaker"]
    B --> C["Home Load"]
    C --> D["Grid"]
    D --> E["Red line"]
    E --> F["Black line"]
    F --> G["Red line"]
    G --> H["Black line"]
    H --> I["Red line"]
    I --> J["Black line"]
    J --> K["Red line"]
    K --> L["Black line"]
    L --> M["Red line"]
    M --> N["Black line"]
    N --> O["Red line"]
    O --> P["Black line"]
    P --> Q["Red line"]
    Q --> R["Black line"]
    R --> S["Red line"]
    S --> T["Black line"]
    T --> U["Red line"]
    U --> V["Black line"]
    V --> W["Red line"]
    W --> X["Black line"]
    X --> Y["Red line"]
    Y --> Z["Black line"]
    Z --> AA["Red line"]
    AA --> AB["Black line"]
    AB --> AC["Red line"]
    AC --> AD["Black line"]
    AD --> AE["Red line"]
    AE --> AF["Black line"]
    AF --> AG["Red line"]
    AG --> AH["Black line"]
    AH --> AI["Red line"]
    AI --> AJ["Black line"]
    AJ --> AK["Red line"]
    AK --> AL["Black line"]
    AL --> AM["Red line"]
    AM --> AN["Black line"]
    AN --> AO["Red line"]
    AO --> AP["Black line"]
    AP --> AQ["Red line"]
    AQ --> AR["Black line"]
    AR --> AS["Red line"]
    AS --> AT["Black line"]
    AT --> AU["Red line"]
    AU --> AV["Black line"]
    AV --> AW["Red line"]
    AW --> AX["Black line"]
    AX --> AY["Red line"]
    AY --> AZ["Black line"]
    AZ --> BA["Red line"]
    BA --> BB["Black line"]
    BB --> BC["Red line"]
    BC --> BD["Black line"]
    BD --> BE["Red line"]
    BE --> BF["Black line"]
    BF --> BG["Red line"]
    BG --> BH["Black line"]
    BH --> BI["Red line"]
    BI --> BJ["Black line"]
    BJ --> BK["Red line"]
    BK --> BL["Black line"]
    BL --> BM["Red line"]
    BM --> BN["Black line"]
    BN --> BO["Red line"]
    BO --> BP["Black line"]
    BP --> BQ["Red line"]
    BQ --> BR["Black line"]
    BR --> BS["Red line"]
    BS --> BT["Black line"]
    BT --> BU["Red line"]
    BU --> BV["Black line"]

Note:

When the inverter is in the off-grid state, the N line needs to be connected to the earth.

Note:

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

3.7 Earth Connection(mandatory)

Ground cable shall be connected to ground plate on grid side this prevents electric shock if the original protective conductor fails.

Earth connection(Copper wires)

Model Wire Size		Cable( mm^2 )	Torque value(max)
29.9/30/35/40/50kW	0AWG	53.5	20.3Nm

The conductor should be made of the same metal as the phase conductors.

3.8 WIFI Connection

For the configuration of Wi-Fi Plug, please refer to illustrations of the Wi-Fi Plug. The Wi-Fi Plug is not a standard configuration, it's optional.

3.9 Wiring System for Inverter

graph TD
    PV["PV"] --> DC_Breaker["DC Breaker"]
    DC_Breaker --> Hybrid_Inverter["Hybrid Inverter"]
    Battery["Battery"] --> DC_Breaker
    DC_Breaker --> Hybrid_Inverter
    Hybrid_Inverter --> Load["Load"]
    Load --> RCD["RCD"]
    RCD --> Load1["Load"]
    Load1 --> Grid["Grid"]
    InverterCase_Grounding["Inverter case grounding"] --> Grid
    Grid --> Home_Loads["Home Loads"]
    Home_Loads --> RCD
    RCD --> L1["L1"]
    RCD --> L2["L2"]
    RCD --> L3["L3"]
    RCD --> L4["L4"]
    RCD --> L5["L5"]
    RCD --> L6["L6"]
    RCD --> L7["L7"]
    RCD --> L8["L8"]
    RCD --> L9["L9"]
    RCD --> L10["L10"]
    RCD --> L11["L11"]
    RCD --> L12["L12"]
    RCD --> L13["L13"]
    RCD --> L14["L14"]
    RCD --> L15["L15"]
    RCD --> L16["L16"]
    RCD --> L17["L17"]
    RCD --> L18["L18"]
    RCD --> L19["L19"]
    RCD --> L20["L20"]
    RCD --> L21["L21"]
    RCD --> L22["L22"]
    RCD --> L23["L23"]
    RCD --> L24["L24"]
    RCD --> L25["L25"]
    RCD --> L26["L26"]
    RCD --> L27["L27"]
    RCD --> L28["L28"]
    RCD --> L29["L29"]
    RCD --> L30["L30"]
    RCD --> L31["L31"]
    RCD --> L32["L32"]
    RCD --> L33["L33"]
    RCD --> L34["L34"]
    RCD --> L35["L35"]
    RCD --> L36["L36"]
    RCD --> L37["L37"]
    RCD --> L38["L38"]
    RCD --> L39["L39"]
    RCD --> L40["L40"]
    RCD --> L41["L41"]
    RCD --> L42["L42"]
    RCD --> L43["L43"]
    RCD --> L44["L44"]
    RCD --> L45["L45"]
    RCD --> L46["L46"]
    RCD --> L47["L47"]
    RCD --> L48["L48"]
    RCD --> L49["L49"]
    RCD --> L50["L50"]
    RCD --> L51["L51"]
    RCD --> L52["L52"]
    RCD --> L53["L53"]
    RCD --> L54["L54"]
    RCD --> L55["L55"]
    RCD --> L56["L56"]
    RCD --> L57["L57"]
    RCD --> L58["L58"]
    RCD --> L59["L59"]
    RCD --> L60["L60"]
    RCD --> L61["L61"]
    RCD --> L62["L62"]
    RCD --> L63["L63"]
    RCD --> L64["L64"]
    RCD --> L65["L65"]
    RCD --> L66["L66"]
    RCD --> L67["L67"]
    RCD --> L68["L68"]
    RCD --> L69["L69"]
    RCD --> L70["L70"]
    RCD --> L71["L71"]
    RCD --> L72["L72"]
    RCD --> L73["L73"]
    RCD --> L74["L74"]
    RCD --> L75["L75"]
    RCD --> L76["L76"]
    RCD --> L77["L77"]
    RCD --> L78["L78"]
    RCD --> L79["L79"]
    RCD --> L80["L80"]
    RCD --> L81["L81"]
    RCD --> L82["L82"]
    RCD --> L83["L83"]
    RCD --> L84["L84"]
    RCD --> L85["L85"]
    RCD --> L86["L86"]
    RCD --> L87["L87"]
    RCD --> L88["L88"]
    RCD --> L89["L89"]
    RCD --> L90["L90"]

3.10 Wiring diagram

This diagram is an example for an application in which neutral is separated from the PE in the distribution box. For countries such as China, Germany, the Czech Republic, Italy, etc., please follow local wiring regulations! Note: Backup function is optional in German market. please leave backup side empty if backup function is not available in the inverter.

graph TD
    A["Battery"] -->|N PE| B["Hybrid Inverter"]
    C["Solar Array"] -->|N PE or ⊗| B
    B --> D["L1 L1"]
    B --> E["L2 L2"]
    B --> F["L3"]
    B --> G["N"]
    B --> H["PE or ⊗"]
    B --> I["On-Grid"]
    J["Grounding screw hole in the lower right corner"] --> K["RCD"]
    K --> L["E-BAR"]
    K --> M["L1 L2 L3 N PE"]
    K --> N["Home Loads"]
    O["Distribution box"] --> P["RCD"]
    P --> Q["L3"]
    P --> R["N PE"]
    S["Backup Loads"] --> T["Grid"]
    U["When the inverter is working in backup mode, neutral and PE on the backup side are connected via the internal relay. Also, this internal relay will be open when the inverter is working in grid tied mode."] --> V["BMS"]

graph TD
    A["Inverter"] -->|①DC Breaker| B["Battery pack"]
    B --> C["Ground"]
    C --> D["Home Load"]
    D --> E["Grid"]
    subgraph Inverter
        F["DC Breaker for battery SUN 29.9K-SG-EU: 200A DC breaker"]
        G["SUN 30K-SG-EU: 200A DC breaker"]
        H["SUN 35K-SG-EU: 200A DC breaker"]
        I["SUN 40K-SG-EU: 200A DC breaker"]
        J["SUN 50K-SG-EU: 200A DC breaker"]
    end
    subgraph BatteryPack
        K["AC Breaker for grid SUN 29.9K-SG-EU: 240A AC breaker"]
        L["SUN 30K-SG-EU: 240A AC breaker"]
        M["SUN 35K-SG-EU: 240A AC breaker"]
        N["SUN 40K-SG-EU: 240A AC breaker"]
        O["SUN 50K-SG-EU: 240A AC breaker"]
    end
    subgraph BackupLoad
        P["PEN L1 L2 L3"]
    end
    subgraph HomeLoad
        Q["AC Breaker for grid SUN 29.9K-SG-EU: 240A AC breaker"]
        R["SUN 30K-SG-EU: 240A AC breaker"]
        S["SUN 35K-SG-EU: 240A AC breaker"]
        T["SUN 40K-SG-EU: 240A AC breaker"]
        U["SUN 50K-SG-EU: 240A AC breaker"]
    end
    subgraph Grid
        V["L3"]
        W["L2"]
        X["L1"]
        Y["N"]
        Z["PE"]
        AA["CT1"]
        AB["CT2"]
        AC["CT3"]
        AD["CT1P"]
        AE["PE"]
    end

3.11 Typical application diagram of diesel generator

graph TD
    A["Generator"] -->|③AC Breaker| B["Ground"]
    B --> C["Backup Load"]
    C --> D["Battery pack"]
    D --> E["Inverter"]
    E --> F["GS (diesel generator startup signal)"]
    F --> G["coil open contact G"]
    F --> H["S"]
    I["PE"] --> J["Remote control signal line"]
    K["N"] --> J
    L["L1"] --> J
    M["L2"] --> J
    N["L3"] --> J
    O["BMS. BM52"] --> P["Ground"]
    Q["②AC Breaker"] --> R["Ground"]
    S["①DC Breaker for battery"] --> T["Battery pack"]
    U["SUN 29.9K-SG-EU: 200A DC breaker"] --> V["Battery pack"]
    W["SUN 30K-SG-EU: 200A DC breaker"] --> X["Battery pack"]
    Y["SUN 35K-SG-EU: 200A DC breaker"] --> Z["Battery pack"]
    AA["SUN 40K-SG-EU: 200A DC breaker"] --> AB["Battery pack"]
    AC["SUN 50K-SG-EU: 200A DC breaker"] --> AD["Battery pack"]
    AE["L1"] --> AF["Ground"]
    AG["L2"] --> AF
    AH["L3"] --> AF
    AI["N"] --> AF
    AJ["PE"] --> AF
    AK["Ground"] --> AL["Backup Load"]

graph TD
    A["Generator"] -->|③AC Breaker| B["Ground"]
    B --> C["Inverter"]
    C --> D["Battery pack"]
    D --> E["①DC Breaker for battery"]
    E --> F["②AC Breaker"]
    F --> G["Backup 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:#ffc,stroke:#333
    style F fill:#fcc,stroke:#333
    style G fill:#cff,stroke:#333
    subgraph Inverter
        H["coil open contact G"]
        I["diesel generator startup signal"]
        J["G-start (1,2): dry contact signal for startup the diesel generator"]
    end
    subgraph Battery pack
        K["①DC Breaker for battery SUN 29.9K-SG-EU: 200A DC breaker"]
        L["SUN 30K-SG-EU: 200A DC breaker"]
        M["SUN 35K-SG-EU: 200A DC breaker"]
        N["SUN 40K-SG-EU: 200A DC breaker"]
        O["SUN 50K-SG-EU: 200A DC breaker"]
        P["②AC Breaker for backup load"]
    end
    subgraph Backup Load
        Q["L1 L2 L3 N PE"]
    end

③ AC Breaker for Generator port SUN 29.9K-SG-EU: 240A AC breaker SUN 30K-SG-EU: 240A AC breaker SUN 35K-SG-EU: 240A AC breaker SUN 40K-SG-EU: 240A AC breaker SUN 50K-SG-EU: 240A AC breaker

3.12 Three phase parallel connection diagram

Note: The function of Multiple units work in parallel mode will be available in Q1 2023.

For the parallel system, the lead-acid battery is not supported. Please use Deye approved lithium battery.

Pure electrical circuit lines without any symbols

Inverter

Note: unlike cases of other hybrid inverter with LV battery, HV battery can only be connected separately to HV hybrid inverters.

④⑥⑧ AC Breaker for grid port SUN 29.9K-SG-EU: 240A AC breaker
SUN 30K-SG-EU: 240A AC breaker SUN 35K-SG-EU: 240A AC breaker SUN 40K-SG-EU: 240A AC breaker SUN 50K-SG-EU: 240A AC breaker
⑤⑦⑨ AC Breaker for backup load SUN 29.9K-SG-EU: 240A AC breaker SUN 30K-SG-EU: 240A AC breaker SUN 35K-SG-EU: 240A AC breaker SUN 40K-SG-EU: 240A AC breaker SUN 50K-SG-EU: 240A AC breaker ①②③ DC Breaker for battery SUN 29.9K-SG-EU: 200A DC breaker SUN 30K-SG-EU: 200A DC breaker SUN 35K-SG-EU: 200A DC breaker SUN 40K-SG-EU: 200A DC breaker SUN 50K-SG-EU: 200A DC breaker
⑩ AC Breaker for home load Depends on household loads

graph TD
    A["Inverter No.3 (slave)"] -->|①| B["Battery pack"]
    A -->|②| C["Battery pack"]
    A -->|③| D["Battery pack"]
    A -->|④| E["Ground"]
    A -->|⑤| F["Ground"]
    A -->|⑥| G["Ground"]
    A -->|⑦| H["Ground"]
    A -->|⑧| I["Ground"]
    A -->|⑨| J["Ground"]
    K["Inverter No.2 (slave)"] -->|②| L["Battery pack"]
    K -->|③| M["Battery pack"]
    K -->|④| N["Battery pack"]
    K -->|⑤| O["Ground"]
    K -->|⑥| P["Ground"]
    K -->|⑦| Q["Ground"]
    K -->|⑧| R["Ground"]
    S["Home Load"] --> T["Arrow pointing to inverter"]
    U["CT"] --> V["PENL1 L2 L3"]
    W["CT1"] --> X["CT2"]
    Y["CT3"] --> Z["CT1"]
    style A fill:#f9f,stroke:#333
    style K fill:#ccf,stroke:#333
    style S fill:#cfc,stroke:#333
    style U fill:#fcc,stroke:#333
    style W fill:#cff,stroke:#333
    style X fill:#ffc,stroke:#333
    style Y fill:#fcc,stroke:#333
    style Z fill:#fcc,stroke:#333

Master inverter Slave Inverter Slave Inverter

4. OPERATION

4.1 Power ON/OFF

Once the unit has been properly installed and the batteries are connected well, simply press On/Off button(located on the left side of the case) to turn on the unit. When system without battery connected, but connect with either PV or grid, and ON/OFF button is switched off, LCD will still light up(Display will show OFF), In this condition, when switch on ON/OFF button and select NO battery, system can still working.

4.2 Operation and Display Panel

The operation and display panel, shown in below chart, is on the front panel of the inverter. It includes four indicators, four function keys and a LCD display, indicating the operating status and input/output power information.

LED Indicator		Messages
DC	Green led solid light	PV Connection normal
AC	Green led solid light	Grid Connection normal
Normal	Green led solid light	Inverter operating normal
Alarm	Red led solid light	Malfunction or warning

Chart 4-1 LED indicators

Function Key	Description
Esc	To exit setting mode
Up	To go to previous selection
Down	To go to next selection
Enter	To confirm the selection

Chart 4-2 Function Buttons

5. LCD Display Icons

5.1 Main Screen

The LCD is touchscreen, below screen shows the overall information of the inverter.

1. The icon in the center of the home screen indicates that the system is Normal operation. If it turns into "comm./F01\~F64", it means the inverter has communication errors or other errors, the error message will display under this icon(F01-F64 errors, detail error info can be viewed in the System Alarms menu).

2.At the top of the screen is the time.

1. System Setup Icon, Press this set button, you can enter into the system setup screen which including Basic Setup, Battery Setup, Grid Setup, System Work Mode, Generator port use, Advanced function and Li-Batt info.

2. The main screen showing the info including Solar, Grid, Load and Battery. Its also displaying the energy flow direction by arrow. When the power is approximate to high level, the color on the panels will changing from green to red so system info showing vividly on the main screen.

· PV power and Load power always keep positive.
· Grid power negative means sell to grid, positive means get from grid.
· Battery power negative means charge, positive means discharge.

5.1.1 LCD operation flow chart

graph TD
    A["Main Screen"] --> B["Solar Page Sc"]
    A --> C["Grid Page"]
    A --> D["Inverter Page"]
    A --> E["Battery Page"]
    A --> F["Load Page"]
    A --> G["System Setup"]
    G --> H["Device info"]
    G --> I["Advanced Function"]
    G --> J["Basic Setting"]
    G --> K["Gen Port Use"]
    G --> L["Grid Setting"]
    G --> M["System Work Mode"]
    G --> N["Battery Setting"]
    G --> O["Load Graph"]
    G --> P["BMS Page"]
    G --> Q["Grid Graph"]

5.2 Solar Power Curve

This is Solar Panel detail page.

① Solar Panel Generation.
② Voltage, Current, Power for each MPPT.
③ Daily and total PV production.

Press the "Energy" button will enter into the power curve page.

This is Inverter detail page.

① Inverter Generation.
Voltage, Current, Power for each Phase.
AC-T: mean Heat-sink temperature.

This is Back-up Load detail page.

① Back-up Power.
② Voltage, Power for each Phase.
③ Daily and total backup consumption.

Press the "Energy" button will enter into the power curve page.

This is Grid detail page.

① Status, Power, Frequency.
② L: Voltage for each Phase
CT: Power detected by the external current sensors
LD: Power detected using internal sensors on AC grid in/out breaker

③ BUY: Energy from Grid to Inverter,

SELL: Energy from Inverter to grid.

Press the "Energy" button will enter into the power curve page.

This is Battery detail page.
if you use Lithium Battery, you can enter BMS page.

5.3 Curve Page-Solar & Load & Grid

Solar power curve for daily, monthly, yearly and total can be roughly checked on the LCD, for more accuracy power generation, pls check on the monitoring system. Click the up and down arrow to check power curve of different period.

5.4 System Setup Menu

graph TD
    A["Battery Setting"] --> B["System Work Mode"]
    C["Basic Setting"] --> D["Grid Setting"]
    E["Advanced Function"] --> F["Gen Port Use"]
    G["Device Info."] --> H["Device Info."]

This is System Setup page.

5.5 Basic Setup Menu

Factory Reset: Reset all parameters of the inverter. Lock out all changes: Enable this menu for setting parameters that require locking and cannot be set up. Before performing a successful factory reset and locking the systems, to keep all changes you need to type in a password to enable the setting. The password for factory settings is 9999 and for lock out is 7777.

m = 311

Battery capacity: it shows your battery bank size to Deye hybrid inverter.

Use Batt V: Use Battery Voltage for all the settings (V).

Use Batt %: Use Battery SOC for all the settings (%).

Max. A charge/discharge: Max battery charge/discharge current(0-50A for 29.9/30/35/40/50kW model). For AGM and Flooded, we recommend Ah battery size x 20%= Charge/Discharge amps.

. For Lithium, we recommend Ah battery size x 50% = Charge/Discharge amps.

. For Gel, follow manufacturer's instructions.

No Batt: tick this item if no battery is connected to the system.

Activate Battery1/Activate Battery2: This feature will help recover a battery that is over discharged by slowly charging from the solar array or grid.

Battery Setting

This is Grid Charge, you need select. ②

Start =30%: No use, Just for customization.

A = 50A: It indicates the Current that the Grid charges the Battery.

Grid Charge: It indicates that the grid charges the battery.

Grid Signal: Disable.

This is Battery Setup page. ①③

Start =30%: Percent SOC below 30% system will AutoStart a connected generator to charge the battery bank.

A = 50A: Charge rate of 50A from the attached generator in Amps.

Gen Charge: uses the gen input of the system to charge battery bank from an attached generator.

Gen Signal: Normally open relay that closes when the Gen Start signal state is active.

Gen Max Run Time: It indicates the longest time Generator can run in one day, when time is up, the Generator will be turned off. 24H means that it does not shut down all the time.

Gen Down Time: It indicates the delay time of the Generator to shut down after it has reached the running time.

graph TD
    A["Sat"] --> B["0 0.00 KW 30"]
    B --> C["ON"]
    C --> D["0 -3.00 KW 30"]
    D --> E["0 0.00 KW 30"]
    E --> F["0 -2.00 KW 30"]
    F --> G["Signal on"]
    G --> H["Power source icon"]
    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

This page tells the PV and diesel generator power the load and battery.

This page tells generator output voltage, frequency, power. And, how much energy is used from generator.

Lithium Mode: This is BMS protocol. Please reference the document (Approved Battery).

Shutdown 10%: It indicates the inverter will shutdown if the SOC below this value.

Low Batt 20%: It indicates the inverter will alarm if the SOC below this value.

Restart 40%: Battery SOC at 40% AC output will resume.

Recommended battery settings

Battery Type Absorption Stage Float Stage			Torque value (every 30 days 3hr)
Lithium Follow its BMS voltage parameters

5.7 System Work Mode Setup Menu

System Work Mode

Work Mode

Selling First: This Mode allows hybrid inverter to sell back any excess power produced by the solar panels to the grid. If time of use is active, the battery energy also can be sold into grid.

The PV energy will be used to power the load and charge the battery and then excess energy will flow to grid. Power source priority for the load is as follows:

1. Solar Panels.
2. Grid.
3. Batteries (until programable % discharge is reached).

Zero Export To Load: Hybrid inverter will only provide power to the backup load connected. The hybrid inverter will neither provide power to the home load nor sell power to grid. The built-in CT will detect power flowing back to the grid and will reduce the power of the inverter only to supply the local load and charge the battery.

graph LR
    A["Solar"] --> B["Battery"]
    B --> C["Computer"]
    C --> D["House"]
    D --> E["GridBack"]

GridBackup Load On-Grid Home Load

Zero Export To CT: Hybrid inverter will not only provide power to the backup load connected but also give power to the home load connected. If PV power and battery power is insufficient, it will take grid energy as supplement. The hybrid inverter will not sell power to grid. In this mode, a CT is needed. The installation method of the CT please refer to chapter 3.6 CT Connection. The external CT will detect power flowing back to the grid and will reduce the power of the inverter only to supply the local load, charge battery and home load.

graph LR
    A["Solar"] --> B["Battery"]
    B --> C["Computer"]
    C --> D["Home"]
    D --> E["GridBack"]
    E --> F["CT"]

GridBackup Load On-Grid Home Load

Solar Sell: "Solar sell" is for Zero export to load or Zero export to CT: when this item is active, the surplus energy can be sold back to grid. When it is active, PV Power source priority usage is as follows: load consumption and charge battery and feed into grid.

Max. sell power: Allowed the maximum output power to flow to grid.

Zero-export Power: for zero-export mode, it tells the grid output power. Recommend to set it as 20-100W to ensure the hybrid inverter won't feed power to grid.

Energy Pattern: PV Power source priority.

Batt First: PV power is firstly used to charge the battery and then used to power the load. If PV power is insufficient, grid will make supplement for battery and load simultaneously.

Load First: PV power is firstly used to power the load and then used to charge the battery. If PV power is insufficient, Grid will provide power to load.

Max Solar Power: allowed the maximum DC input power.

Grid Peak-shaving: when it is active, grid output power will be limited within the set value. If the load power exceeds the allowed value, it will take PV energy and battery as supplement. If still can't meet the load requirement, grid power will increase to meet the load needs.

System Work Mode

Battery Setting

System Work Mode

Time of use: it is used to program when to use grid or generator to charge the battery, and when to discharge the battery to power the load. Only tick "Time Of Use" then the follow items (Grid, charge, time, power etc.) will take effect.

Note: when in selling first mode and click time of use, the battery power can be sold into grid.

Gen charge: utilize diesel generator to charge the battery in a time period.

Time: real time, range of 01:00-24:00.

Note: when the grid is present, only the "time of use" is ticked, then the battery will discharge. Otherwise, the battery won't discharge even the battery SOC is full. But in the off-grid mode (when grid is not available, inverter will work in the off-grid mode automatically).

Power: Max. discharge power of battery allowed.

Batt(V or SOC %): battery SOC % or voltage at when the action is to happen.

For example

During 01:00-05:00,

if battery SOC is lower than 80%, it will use grid to charge the battery until battery SOC reaches 80%.

During 05:00-08:00,

if battery SOC is higher than 40%, hybrid inverter will discharge the battery until the SOC reaches 40%. At the same time, if battery SOC is lower than 40%, then grid will charge the battery SOC to 40%.

During 08:00-10:00,

if battery SOC is higher than 40%, hybrid inverter will discharge the battery until the SOC reaches 40%.

During 10:00-15:00,

when battery SOC is higher than 80%, hybrid inverter will discharge the battery until the SOC reaches 80%.

During 15:00-18:00,

when battery SOC is higher than 40%, hybrid inverter will discharge the battery until the SOC reaches 40%.

During 18:00-01:00,

when battery SOC is higher than 35%, hybrid inverter will discharge the battery until the SOC reaches 35%.

System Work Mode

It allows users to choose which day to execute the setting of "Time of Use".

For example, the inverter will execute the time of use page on Mon/Tue/Wed/Thu/Fri/Sat only.

5.8 Grid Setup Menu

Grid Setting/Grid code selection

Grid Mode: General Standard、UL1741 & IEEE1547、CPUC RULE21、SRD-UL-1741、CEI 0-21、Australia A、Australia B、Australia C、EN50549_CZ-PPDS(>16A)、NewZealand、VDE4105、OVE-Directive R25. Please follow the local grid code and then choose the corresponding grid standard.

Grid level: there're several voltage levels for the inverter output voltage when it is in off-grid mode.

LN:230VAC LL:400VAC, LN:240VAC LL:420VAC,

LN:120VAC LL:208VAC, LN:133VAC LL:230VAC.

IT system: If the grid system is IT system, then please

enable this option. For example, the IT grid system voltage is 230Vac (the Line voltage between any two live lines in a three-phase circuit is 230Vac, and the diagram is as follow) then please enable "IT system" and tick the "Grid level" as LN:133VAC LL:230VAC as below picture shows.

Rz: Large resistance ground resistor. Or the system doesn't have Neutral line

Grid Setting/Connect

Normal connect: The allowed grid voltage/frequency range when the inverter first time connect to the grid. Normal Ramp rate: It is the startup power ramp.

Reconnect after trip: The allowed grid voltage /frequency range for the inverter connects the grid after the inverter trip from the grid.

Reconnect Ramp rate: It is the reconnection power ramp

Reconnection time: The waiting time period for the inverter connects the grid again.

PF: Power factor which is used to adjust inverter reactive power.

Grid Setting/IP Protection

HV1: Level 1 overvoltage protection point;
① HV2: Level 2 overvoltage protection point; ② 0.10s—Trip time.

HV3: Level 3 overvoltage protection point.

LV1: Level 1 undervoltage protection point;

LV2: Level 2 undervoltage protection point;

LV3: Level 3 undervoltage protection point.

HF1: Level 1 over frequency protection point;

HF2: Level 2 over frequency protection point;

HF3: Level 3 over frequency protection point.

LF1: Level 1 under frequency protection point;

LF2: Level 2 under frequency protection point;

LF3: Level 3 under frequency protection point.

Grid Setting/F(W)

FW: this series inverter is able to adjust inverter output power according to grid frequency.

Droop F: percentage of nominal power per Hz

For example, "Start freq F > 50.2Hz, Stop freq F < 51.5, Droop F = 40%PE/Hz" when the grid frequency reaches 50.2Hz, the inverter will decrease its active power at Droop F of 40%. And then when grid system frequency is less than 50.1Hz, the inverter will stop decreasing output power.

For the detailed setup values, please follow the local grid code.

Grid Setting/V(W) V(Q)

V(W): It is used to adjust the inverter active power according to the set grid voltage.

V(Q): It is used to adjust the inverter reactive power according to the set grid voltage.

This function is used to adjust inverter output power (active power and reactive power) when grid voltage changes.

Lock-in/Pn 5%: When the inverter active power is less than 5% rated power, the VQ mode will not take effect.

Lock-out/Pn 20%: If the inverter active power is increasing from 5% to 20% rated power, the VQ mode will take effect again.

For example: V2=110%, P2=80%. When the grid voltage reaches the 110% times of rated grid voltage, inverter output power will reduce its active output power to 80% rated power.

For example: V1=94%, Q1=44%. When the grid voltage reaches the 94% times of rated grid voltage, inverter output power will output 44% reactive output power.

For the detailed setup values, please follow the local grid code.

Grid Setting/P(Q) P(F)

P(Q): It is used to adjust the inverter reactive power according to the set active power.

P(PF): It is used to adjust the inverter PF according to the set active power.

For the detailed setup values, please follow the local grid code.

Lock-in/Pn 50%: When the inverter output active power is less then 50% rated power, it won't enter the P(PF) mode.

Lock-out/Pn 50%: When the inverter output active power is higher then 50% rated power, it will enter the P(PF) mode.

Note : only when the grid voltage is equal to or higher than 1.05 times of rated grid voltage, then the P(PF) mode will take effect.

Grid Setting/LVRT

Reserved: This function is reserved. It is not recommended.

5.9 Generator Port Use Setup Menu

GEN PORT USE

Generator input rated power: allowed Max. power from diesel generator.

GEN connect to grid input: connect the diesel generator to the grid input port.

Smart Load Output: This mode utilizes the Gen input connection as an output which only receives power when the battery SOC is above a user programmable threshold.

e.g. ON: 100%, OFF: 95%: When the battery bank SOC reaches 100%, Smart Load Port will switch on automatically and power the load connected. When the battery bank SOC < 95%, the Smart Load Port will switch off automatically.

Smart Load OFF Batt

- Battery SOC at which the Smart load will switch off.

Smart Load ON Batt

- Battery SOC at which the Smart load will switch on. simultaneously and then the Smart load will switch on.

On Grid always on: When click "on Grid always on" the smart load will switch on when the grid is present.

Micro Inv Input: To use the Generator input port as a micro-inverter on grid inverter input (AC coupled), this feature will also work with "Grid-Tied" inverters.

* Micro Inv Input OFF: when the battery SOC exceeds setting value, Microinveter or grid-tied inverter will shut down.
* Micro Inv Input ON: when the battery SOC is lower than setting value, Microinveter or grid-tied inverter will start to work.

AC Couple Frz High: If choosing "Micro Inv input", as the battery SOC reaches gradually setting value (OFF), during the process, the microinverter output power will decrease linear. When the battery SOC equals to the setting value (OFF), the system frequency will become the setting value (AC couple Frz high) and the Microinverter will stop working.

MI export to grid cutsoff: Stop exporting power produced by the microinverter to the grid.

* Note: Micro Inv Input OFF and On is valid for some certain FW version only.

5.10 Advanced Function Setup Menu

Advanced Function

Solar Arc Fault ON: This is only for US.

System selfcheck: Disable. this is only for factory.

Gen Peak-shaving: Enable When the power of the generator exceeds the rated value of it, the inverter will provide the redundant part to ensure that the generator will not overload.

DRM: For AS4777 standard

Backup Delay: Reserved

BMS_Err_Stop: When it is active, if the battery BMS failed to communicate with inverter, the inverter will stop working and report fault.

Signal island mode: If "Signal island mode" is checked and When inverter is in off-grid mode, the relay on the Neutral line (load port N line) will switch ON then the N line (load port N line) will bind to inverter ground.

Inverter

Asymmetric phase feeding: If it was checked, the inverter will take power from the grid balance of on each phase (L1/L2/L3) when needed.

Ex_Meter For CT: when using zero-export to CT mode, the hybrid inverter can select EX_Meter For CT function and use the different meters.e.g.CHNT and Eastron.

5.11 Device Info Setup Menu

This page show Inverter ID, Inverter version and alarm codes.

HMI: LCD version

MAIN: Control board FW version

6. Mode

Mode I:Basic

graph LR
    A["Sun"] --> B["Battery"]
    C["Solar"] --> D["Backup Load"]
    E["Battery"] --> D
    D --> F["On-Grid Home Load"]
    G["AC cable"] --> H["DC cable"]
    I["COM cable"] --> J["Grid"]
    K["CT"] --> L["Grid"]
    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
    style I fill:#ccf,stroke:#333
    style J fill:#ccf,stroke:#333

Mode II: With Generator

graph TD
    Solar["Solar"] -->|AC cable| Grid["Grid"]
    Battery["Battery"] -->|DC cable| Battery
    Battery -->|AC cable| Generator["Generator"]
    Generator -->|AC cable| On-GridHome["On-Grid Home Load"]
    On-GridHome --> BackupLoad["Backup Load"]
    BackupLoad -->|AC cable| Grid
    On-GridHome -->|AC cable| Grid
    Grid --> CT["CT"]

Mode III: With Smart-Load

graph TD
    A["Solar"] --> B["DC Unit"]
    C["Battery"] --> B
    B --> D["Backup Load On-Grid Home Load"]
    D --> E["CT"]
    E --> F["Grid"]
    F --> G["Smart Load"]
    G --> H["Grid"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style D fill:#ccf,stroke:#333
    style E fill:#ccf,stroke:#333
    style F fill:#ccf,stroke:#333
    style G fill:#ccf,stroke:#333
    style H fill:#ccf,stroke:#333

Mode IV: AC Couple

graph TD
    A["Solar"] --> B["On-Grid + AC couple"]
    C["Battery"] --> B
    B --> D["Backup Load On-Grid Home Load"]
    D --> E["On-Grid Inverter"]
    E --> F["CT"]
    F --> G["Grid"]
    H["AC cable DC cable"] --> E

The 1st priority power of the system is always the PV power, then 2nd and 3rd priority power will be the battery bank or grid according to the settings. The last power backup will be the Generator if it is available.

7. Limitation of Liability

In addition to the product warranty described above, the state and local laws and regulations provide financial compensation for the product's power connection (including violation of implied terms and warranties). The company hereby declares that the terms and conditions of the product and the policy cannot and can only legally exclude all liability within a limited scope.

Error code	Description Solutions
F01 DC_Inversed_Failure		1, Check the PV input polarity2, Seek help from us, if can not go back to normal state.
F07	DC_START_Failure	1, The BUS voltage can't be built from PV or battery.2, Restart the inverter, If the fault still exists, please contact us for help
F13	Working_Mode_change	When the grid type and frequency changed it will report F13;When the battery mode was changed to “No battery” mode, it will report F13;For some old FW version, it will report F13 when the system work mode changed;Generally, it will disappear automatically when shows F13;If it remains same, turn on DC and AC switch for one minute, then turn on the DC and AC switch.;Seek help from us, if can not go back to normal state.
F15	AC_OverCurr_SW_Failure	AC side over current faultPlease check whether the backup load power and common load power are within the range;Restart and check whether it is normal;Seek help from us, if can not go back to normal state.
F16 GFCI_Failure		Leakage current faultCheck the PV side cable ground connectionRestart the system 2-3 timesif the fault still existing, please contact us for help.
F18	Tz_Ac_OverCurr_Fault	AC side over current faultPlease check whether the backup load power and commonplace power are within the range;Restart and check whether it is normal;Seek help from us, if cannot go back to normal state.
F20	Tz_Dc_OverCurr_Fault	DC side over current faultCheck PV module connection and battery connection;When in the off-grid mode, the inverter startup with big power load, it may report F20. Please reduce the load power connected;If it remains same, turn on DC and AC switch for one minute, then turn on the DC and AC switch.;Seek help from us, if can not go back to normal state.
F21 Tz_HV_Overcurr_fault		BUS over current.1, Check the PV input current and battery current setting2. Restart the system 2~3 times.3. If the fault still exists, please contact us for help.
F22	'Tz_EmcrgStop_Fault	Remotely shutdown1, it tells the inverter is remotely controlled.
F23	'Tz_GFCI_OC_Fault	Leakage current fault1. Check PV side cable ground connection.2. Restart the system 2~3 times.3. If the fault still exists, please contact us for help.
F24 DC Insulation_Fault		PV isolation resistance is too low1. Check the connection of PV panels and inverter is firmly and correctly;2. Check whether the PE cable of inverter is connected to ground;3. Seek help from us, if can not go back to normal state.
F26 Bus Unbalance_Fault		1. Please wait for a while and check whether it is normal;2. When the load power of 3 phases is big different, it will report the F26.3. When there's DC leakage current, it will report F264. Restart the system 2~3 times.5. Seek help from us, if can not go back to normal state.
F29	Parallel_Comm_Fault	1. When in parallel mode, check the parallel communication cable connection and hybrid inverter communication address setting;2. During the parallel system startup period, inverters will report F29. But when all inverters are in ON status, it will disappear automatically;3. If the fault still exists, please contact us for help.
F34 AC Overload_Fault		1, Check the backup load connection, make sure it is in allowed power range2, If the fault still exists, please contact us for help
F41 Parallel_system_Stop		1, Check the hybrid inverter work status. If there's 1pcs hybrid inverter shutdown, all hybrid inverters will report F41 fault.2, If the fault still exists, please contact us for help
F42	Parallel_Version_Fault	Grid voltage fault1. Check whether the AC voltage is within grid standard protection limits.;2. Check whether grid AC cables are firmly and correctly connected;3. Seek help from us, if can not go back to normal state.
F47	AC_OverFreq_Fault	Grid frequency out of range1. Check the frequency is in the range of specification or not;2. Check whether AC cables are firmly and correctly connected;3. Seek help from us, if can not go back to normal state.
F48	AC_UnderFreq_Fault	Grid frequency out of range1. Check the frequency is in the range of specification or not;2. Check whether AC cables are firmly and correctly connected;3. Seek help from us, if can not go back to normal state.
F52 DC_VoltHigh_Fault		BUS voltage is too high1. Check whether battery voltage is too high;2. check the PV input voltage, make sure it is within the allowed range;3. Seek help from us, if can not go back to normal state.
F53 DC_VoltLow_Fault		BUS voltage is too low1. Check whether battery voltage is too low;2. If the battery voltage is too low, using PV or grid to charge the battery;3. Seek help from us, if can not go back to normal state.
F54 BAT2_VoltHigh_Fault		1. Check the battery 2 terminal voltage is high;2. Restart the inverter 2 times and restore the factory settings;3. Seek help from us, if can not go back to normal state.
F55 BAT1_VoltHigh_Fault		1. Check the battery 1 terminal voltage is high;2. Restart the inverter 2 times and restore the factory settings;3. Seek help from us, if can not go back to normal state.
F56 BAT1_VoltLow_Fault		1. Check the battery 1 terminal voltage is low;2. Restart the inverter 2 times and restore the factory settings;3. Seek help from us, if can not go back to normal state.
F57 BAT2_VoltLow_Fault		1. Check the battery 2 terminal voltage is low;2. Restart the inverter 2 times and restore the factory settings;3. Seek help from us, if can not go back to normal state.
F58 Battery_comm Lose		1. It tells the communication between hybrid inverter and battery BMS disconnected when “BMS_Err-Stop” is active;2. If don’t want to see this happen, you can disable “BMS_Err-Stop” item on the LCD;3. If the fault still exists, please contact us for help
F62 DRMs0_stop		1, the DRM function is for Australia market only;2, Check the DRM function is active or not;3, Seek help from us, if can not go back to normal state after restart the system.
F63 ARC_Fault		1. ARC fault detection is only for US market;2. Check PV module cable connection and clear the fault;3. Seek help from us, if can not go back to normal state
F64	Heatsink_HighTemp_Fault	Heat sink temperature is too high1. Check whether the working environment temperature is too high;2. Turn off the inverter for 10mins and restart;3. Seek help from us, if can not go back to normal state.

Chart 7-1 Fault information

Under the guidance of our company, customers return our products so that our company can provide service of maintenance or replacement of products of the same value. Customers need to pay the necessary freight and other related costs. Any replacement or repair of the product will cover the remaining warranty period of the product. If any part of the product or product is replaced by the company itself during the warranty period, all rights and interests of the replacement product or component belong to the company.

Factory warranty does not include damage due to the following reasons:

• Damage during transportation of equipment;
• Damage caused by incorrect installation or commissioning;
• Damage caused by failure to comply with operation instructions, installation instructions or maintenance instructions;
• Damage caused by attempts to modify, alter or repair products;
• Damage caused by incorrect use or operation;
• Damage caused by insufficient ventilation of equipment;
• Damage caused by failure to comply with applicable safety standards or regulations;
• Damage caused by natural disasters or force majeure (e.g. floods, lightning, overvoltage, storms, fires, etc.)

In addition, normal wear or any other failure will not affect the basic operation of the product. Any external scratches, stains or natural mechanical wear does not represent a defect in the product.

1. Datasheet

Model	SUN-29.9K-SG01HP3-EU-BM3	SUN-30K-SG01HP3-EU-BM3	SUN-35K-SG01HP3-EU-BM3	SUN-40K-SG01HP3-EU-BM4	SUN-50K-SG01HP3-EU-BM4
Battery Input Date
Battery Type	Li-Ion
Battery Voltage Range(V)	160~800
Max. Charging Current(A)	50+50
Max. Discharging Current(A)	50+50
Max. Charging/Discharging Power(W)				4400000000	5500038500
Number of battery input	2
Charging Strategy for Li-Ion Battery Self-adaption to BMS
PV String Input Data
Max. DC Input Power(W)	38870	39000	45500	52000	65000
Max. DC Input Voltage (V)	1000
Start-up Voltage(V)	180
MPPT Range(V)	150-850
Full Load DC Voltage Range (V)	360-850	360-850	420-850	360-850	450-850
Rated DC Input Voltage (V)	600
PV Input Current(A)	36+36+36			36+36+36+36
Max.PV Isc(A)	55+55+55			55+55+55+55
No. of MPPT Trackers	3			4
No. of Strings Per MPPT Tracker	2+2+2 2+2+2+2
AC Output Data
Rated AC Output and UPS Power(W)	29900	30000	35000	40000	50000
Max. AC Output Power(W)	29900	33000	38500	44000	55000
Peak Power(off grid)	1.5 time of rated power, 10 S
AC Output Rated Current(A)	45.4/43.4	45.5/43.5	53.1/50.8	60.7/58.0	75.8/72.5
Max. AC Current(A)	45.4/43.4	50/47.9	58.4/55.8	66.7/63.8	83.4/79.8
Max. Three-phase Unbalanced Output Current (A)	60	60 83.3	60	70
Max. Continuous AC Passthrough(A)	200
Power Factor	0.8 leading to 0.8 lagging
Output Frequency and Voltage	50/60Hz; 3L/N/PE 220/380, 230/400Vac
Grid Type	Three Phase
	<3% (of nominal power)Total Harmonic Distort
	<0.5% InDC current injection
Efficiency
Max. Efficiency	97.60%
	97.00%Euro Efficiency
MPPT Efficiency	>99%
Protection
PV Input Lightning Protection	Integrated
Anti-islanding Protection	Integrated
PV String Input Reverse Polarity Protection	Integrated
	IntegratedInsulation Resistor Detection
Residual Current Monitoring Unit Integrated
	IntegratedOutput Over Current Protection
	IntegratedOutput Shorted Protection
	DC Type II / AC Type IIIOver Voltage Category
	FusesBattery Over Current Protection

Certifications and Standards
Grid Regulation	VDE4105,IEC61727/62116,VDE0126,AS4777.2,CEI 0 21,EN50549-1,G98,G99,C10-11,UNE217002,NBR16149/NBR16150
EMC/Safety Regulation	IEC62109-1/-2, NBT32004-2018, EN61000-6-1,EN61000-6-2,EN61000-6-3, EN61000-6-4
General Data
Operating Temperature Rande(°C)	-40~60°C, >45°C Derating
Cooling	Smart cooling
Noise(dB)	≤65 dB
Communication with BMS	RS485; CAN
Weight(kg)	80
Cabinet size(mm)	527W×894H×294D (Excluding connectors and brackets)
Protection Degree	IP65
Permissible Altitude 2000m
Installation Style	Wall-mounted
Warranty	5 years

9. Appendix I

Definition of RJ45 Port Pin for BMS1

No.	RS485 Pin
1	485_B
2 485_A
3	GND_485
4 CAN-H1
5 CAN-L1
6 GND_485
7 485_A
8 485_B

Simple line drawing of a connector or connector with no text or symbols

BMS1 Port

Definition of RJ45 Port Pin for BMS2

No.	RS485 Pin
1	485_B
2 485_A
3	GND_485
4 CAN-H2
5 CAN-L2
6 GND_485
7 485_A
8 485_B

BMS2 Port

Definition of RJ45 Port Pin for Meter

No.	Meter-485 Pin
1	METER-485_B
2	METER-485_A
3	GND_COM
4	METER-485_B
5	METER-485_A
6	GND_COM
7	--
8	--

Simple line drawing of a mechanical component inside a circle (no text or symbols)

Meter Port

graph TD
    A["8"] --> B["6"]
    B --> C["1"]
    C --> D["2"]
    D --> E["7"]
    E --> F["5"]
    F --> G["3"]
    G --> H["1"]
    style A fill:#99ccff,stroke:#333
    style B fill:#99ccff,stroke:#333
    style C fill:#99ccff,stroke:#333
    style D fill:#99ccff,stroke:#333
    style E fill:#99ccff,stroke:#333
    style F fill:#99ccff,stroke:#333
    style G fill:#99ccff,stroke:#333
    style H fill:#99ccff,stroke:#333

Definition of RJ45 Port Pin for RS485

No.	RS485 Pin
1	Modbus-485_B
2	Modbus-485_A
3	GND_485
4	--
5	--
6	GND_485
7	Modbus-485_A
8	Modbus-485_B

RS485 Port

graph TD
    A["1"] --> B["2"]
    B --> C["3"]
    C --> D["4"]
    D --> E["5"]
    E --> F["6"]
    F --> G["7"]
    G --> H["8"]
    H --> I["9"]
    I --> J["10"]

RS232

No.	WIFI/RS232
1
2	TX
3	RX
4
5	D-GND
6
7
8
9	12Vdc

WIFI/RS232

This RS232 port is used to connect the wifi datalogger

10. Appendix II

1. Split Core Current Transformer (CT) dimension: (mm)
2. Secondary output cable length is 4m.

Top-down schematic of a mechanical or electrical component with no visible text, numbers, or symbols.

Ver: 2.2, 2023-05-23