SOFAR ESI 3-6K-S1 PowerAll ESI Hybrid Inverter User Manual

SOFAR ESI 3-6K-S1 PowerAll ESI Hybrid Inverter

Specifications

• Product Name: ESI 3-6K-S1
• Manufacturer: SHENZHEN SOFARSOLAR Co., Ltd.
• Model: ESI 3-6K-S1
• Capacity: 3-6K
• Installation: Electricians only

Product Information

1. Product Introduction

The ESI 3-6K-S1 is a solar inverter designed for residential and commercial use. It provides efficient conversion of solar energy into usable electricity.

• Product Overview: The inverter is designed to meet the needs of small to medium-sized solar power systems.
• Product Appearance: The inverter features a compact and sleek design suitable for indoor installations.
• Buttons and Indicator Lights: The inverter is equipped with intuitive buttons and indicator lights for easy monitoring and operation.

2. Product Installation

• Checking Before Installation: Ensure all components are included and in good condition before proceeding with the installation.
• Installation Tools: Prepare the necessary tools for installation, including screwdrivers, wrenches, and safety equipment.
• Installation Environment: Install the inverter in a well-ventilated area with proper clearance for heat dissipation.
• Installation Space: Allocate sufficient space around the inverter for maintenance and ventilation purposes.
• Product Installation: Follow the step-by-step installation guide provided in the manual to securely mount the inverter.

3. Electrical Connection

• Attentions Before Connection: Ensure all power sources are switched off before proceeding with electrical connections.
• Preparation of Connection Cables: Use appropriate cables and connectors as specified in the manual for safe and reliable connections.
• Electrical Connection for Internal System: Connect the inverter to the internal electrical system following the provided guidelines.
• External Electrical Connection: For external connections, adhere to local electrical codes and regulations.

FAQs

• Q: Who should install the ESI 3-6K-S1 inverter?
  • A: The installation of the ESI 3-6K-S1 inverter should be carried out by qualified electricians only to ensure safety and proper setup.
• Q: What should I do if I encounter issues with the inverter?
  • A: Refer to the troubleshooting section of the manual for guidance on identifying and resolving common issues. If problems persist, contact customer support for assistance.
• Q: Can the ESI 3-6K-S1 be used for off-grid systems?
  • A: The ESI 3-6K-S1 is primarily designed for grid-tied systems. Consult with a professional to determine compatibility with off-grid setups.

Preface

Preface
Notice
The products, services or features you purchased shall be subject to the company’s commercial contracts and terms. All or part of the products and services described in this document may not within the scope of your purchase. Unless additional terms and conditions in your contract, the company does not make any statement or guarantee on the contents of this document. In addition, the term “Product” as described in this document refers broadly to “ESI Series products”.
Save this Instruction
This manual must be considered as an integral part of the equipment. Customer can print the electronic version to hard copy and keeping properly for future reference. Anyone who operates the device at any time must operate in accordance with the requirements of this manual.
Copyright Declaration
The copyright of this manual belongs to SHENZHEN SOFARSOLAR Co., Ltd. Any corporation or individual should not plagiarize, partially cope or fully copy (including software, etc.), not allow to duplication and publishment in any form and any way. All rights reserved, SOFAR reserves the right of final interpretation. This manual subject to modify according to user’s or customer’s feedback. Please check our website at http://www.sofarsolar.com for latest version.
Document Updates
V4.1 2024-06-11

User Manual

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Preface
Outline
Please read the product manual carefully before installation, operation or maintenance. This manual contains important safety instructions and installation instructions that must be followed during installation and maintenance of the equipment.
Scope of Validity
This product manual describes the installation, electrical connections, commissioning, maintenance and troubleshooting of ESI Series products.
Target Group
This manual is for qualified electricians. The tasks described in this manual only can be performed by qualified electricians.
Symbols Used
The following types of safety instruction and general information appear in this document as described below:

Danger Warning Caution Attention
Note

“Danger” indicates a hazardous situation which, if not avoided, will result in death or serious injury.
“Warning” indicates a hazardous situation which, if not avoided, could result in death or serious injury.
“Caution” indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
“Attention” indicates there are potential risks, if fail to prevent, may lead to equipment cannot normally or property damage.
“Note” provides additional information and tips that are valuable for the optimal operation of the product, will help you to solve a problem or save your time.

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ESI 3-6K-S1

Basic Safety Information

1 Basic Safety Information
Outlines of this Chapter Please read the instruction carefully. Faulty operation may cause serious injury or death.

Note

If you have any question or problem when you read the following information, please contact SHENZHEN SOFARSOLAR CO., Ltd.

1.1 Requirement for Installation and Maintenance

Common Requirements
The product must be installed in full compliance with national and local power grid standards and regulations.
Before installing and adjusting the produce, please read all of instructions, cautions and warnings in this manual.
Before connecting the product to the electrical utility grid, contact the local utility company for allowance. Also, this connection must be made only by qualified electrician.
When any maintenance or repair is required, please contact the nearest authorized maintenance center. If you don’t know which service center is closest to you, please contact your local distributor. Don’t repair the product by yourself, which may lead serious injury or damage.
Before installing and maintaining the device, using the DC switch to cut off the high voltage direct current of the photovoltaic array. Otherwise, the high voltage may cause serious injury.
The product should be placed in a well-ventilated place. Do not place
the product in a sealed or air-tight position or cabinet, otherwise it will
affect the operation performance and system life of the energy storage
system.

Avoid direct sunlight. Do not place this product near stoves and fire sources. Otherwise, the lithium battery in the product system will leak

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Basic Safety Information
or even explode.
The maintenance personnel of this product must understand the knowledge and skills related to inverter and battery maintenance.
ESI Series products are transformerless inverter which requires the positive pole and negative pole of the PV array are NOT grounded. Otherwise, it will cause inverter failure. In the PV system, all non-current-carrying metal parts (such as mounting frame, combiner box enclosure, etc.) should be connected to earthed.
Reminder: Do not disassemble and destroy the battery. The toxic electrolyte in the battery can damage your skin and eyes.
Caution: Comply with the following requirements during the installation and maintenance of the product:
A) Remove watches, rings and other metal objects from your body.
B) Use tools with insulated handles.
C) Wear rubber gloves and shoes.
D) Do not place tools or metal objects on the battery.
E) Close the inverter before connecting/disconnecting the battery and the energy storage inverter.
F) Battery +/- pole shall be isolated from ground.
Installation and maintenance personnel requirements When the product is in the running state, some parts may be electrified and hot. Improper use, improper installation or operation may result in serious injury to person or property. Transport, loading, unloading, installation, start-up and maintenance operations must be performed by a qualified electrical engineer (all accident precautions in force in the user’s country must be followed!) SOFAR will not be responsible for any personal injury or property injury caused by improper use.

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ESI 3-6K-S1

Basic Safety Information
Installation location requirement
Please install the product according to the following section. Place inverter in an appropriate bearing capacity objects (such as solid brick wall, or strength equivalent mounting surface, etc.) and make sure inverter vertical placed. A proper installation location must have enough space for fire engine access in order for maintenance if faulty occur. Ensure the inverter is installed in a wall ventilated environment and have enough air cooling cycle. Air humidity should less than 90%.
Transport Requirement
Inverter is in the good electrical and physical condition when it ship out from factory. During transport, inverter must be placed in its original package or other proper package. Transportation company should responsible for any damage during transport period.
If you find any packing problems that may cause the damage of inverter or any visible damage, please notice the responsible transportation company immediately. You can ask your installer or SOFAR for help is necessary.
This product contains battery module through UN38.3, belongs to the ninth category of dangerous goods. Therefore, loading and unloading must comply with local laws and regulations and industry standards during transportation. Rough loading and unloading may cause short circuit or damage to batteries in containers, which may result in battery leakage, breakage, explosion, or fire.
Shipping complies with the IMDG CODE and the International Maritime Dangerous Goods CODE.
For land transportation, comply with ADR or JT T617 shipping requirements.
Comply the regulatory requirements of the transport regulatory authorities of the country of origin, route and destination.
Comply with international regulations for the transport of dangerous goods and the supervision requirements of the corresponding national transport regulatory authorities.

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Basic Safety Information

Electrical Connection

Please comply with all the current electrical regulations about accident prevention in dealing with the current inverter.

Danger Warming

Before the electrical connection, use opaque material to cover the PV modules or disconnect PV string DC switch. PV arrays will produce dangerous voltage if it is exposure under sun. When installing a battery, check the positive and negative terminals of the battery and turn off the battery.
All operation must accomplish by certified electrical engineer Must be trained; Completely read the manual operation and
understand all information.

Attention

Must get permission by local utility company before connecting to grid and the connection must be done by certified electrical engineers.

Operation Cautions

Danger

Touching the utility grid or the terminal conductors can lead to lethal electric shock or fire! Do not touch non-insulated cable ends, DC conductors and any live components. Attention to any electrical relevant instruction and document.

Attention

Enclosure or internal components may get hot during operation. Please wear insulated gloves.

Maintenance and Repair Cautions

Danger Attention

Before any repair work, turn OFF the AC circuit breaker between the product and electrical grid first, then turn OFF the DC switch. After turning OFF the AC circuit breaker and DC switch wait for at least 5 minutes before carry any maintenance or repair work.
Product should not work again until removing all faults. If any repair work is required, please contact local authorized service center. Should not open the product cover without authorized permit, SOFARSOALR does not take any responsibility for that.

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ESI 3-6K-S1

Basic Safety Information

EMC/Noise Level Electromagnetic compatibility (EMC) refers to that on electrical equipment functions in a given electromagnetic environment without any trouble or error, and impose no unacceptable effect upon the environment. Therefore, EMC represents the quality characters of an electrical equipment.
The inherent noise-immune character: immunity to internal electrical noise
External noise immunity: immunity to electromagnetic noise of external system
Noise emission level: influence of electromagnetic emission upon environment

Danger

Electromagnetic radiation from the product may be harmful to health! Please do not continue to stay away from the product in less than 20cm when it is working

1.2 Symbols and Signs

Danger Caution

High voltage of inverter may be harmful to health! Only certified engineer can operate the product; Juveniles, Disable, should not use this product; Keep this product out of the reach of children;
Caution of burn injuries due to hot enclosure! Only touch the screen and pressing key of the product while it is working

Attention Warning

PV array should be grounded in accordance to the requirements of the local electrical grid company
Ensure the maximum DC voltage input is less than the product’s maximum DC voltage (including in low temperature condition). Any damage cause by over- voltage, SOFAR will not take the responsibility including warranty

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Basic Safety Information

The product has some safety symbols on it. Please read and fully understand the content of the symbols before installation.
Sings on the inverter module

Symbols

Name

This is a residual voltage in the inverter module!

Caution of high voltage and electric shock

Caution of hot surface
Comply with European standard (CE) certification
Grounding Terminal

Explanation
After disconnect with the DC side, there is a residual voltage in the inverter module, operator should wait for 5 minutes to ensure the capacitor is completely discharged. The inverter module operates at high voltages. Prior to performing any work on the product, disconnect the product from voltage sources. All work on the product must be carried out by qualified persons only. The inverter module can get hot during operation. Avoid contact during operation. Prior to performing any work on the product, allow the product to cool down sufficiently.
The product complies with the CE Certification
Connect the inverter module to the ground bar for grounding protection

Observe the documentation

Read all documentation supplied with the product before install

Positive pole and negative pole

Positive pole and negative pole of the input voltage (DC)

Temperature

Indicated the temperature allowance range

This side up
RCM (Regulatory Compliance Mark)

Inverter must always be transported, handled and stored in such a way that the arrows always point upwards.
The product complies with the requirements of the applicable Australian standards

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ESI 3-6K-S1

Product Introduction

2 Product Introduction
2.1 Product Overview
2.1.1 Product Brief Introduction
ESI 3-6K-S1 series inverters support multi-power segment operation. Including PV, energy storage, grid connection, EPS and other corresponding functions in one. PV is two independent MPPT tracking channels, suitable for different installation environments. The ESI 3-6K-S1 inverter can be installed with or without batteries. If the inverter needs to be used with batteries, it can only use BTS 5K battery model. The battery type is LiFePO4 (LFP). The maximum energy storage capacity is 5kWh-30kWh. The inverter has the advantages of multiple working modes in operation. Under different modes, energy can be managed and distributed according to the actual situation to meet different needs. Flexible monitoring mode, support RS485. Also support: WIFI/Bluetooth remote control function.
The main features are as follows: Stack integrated design, convenient installation, simple maintenance; Built-in battery pack equalization management unit to improve battery
available capacity; Photovoltaic maximum input current 16A, applicable to large current
and double-sided module; Battery side complete electrical isolation, safer system; UPS function to ensure the stable operation of critical load; Supports a mixture of new and old batteries; Supports battery switch off with a button.

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Product Introduction

Figure 2.1.1-1 ESI series application principle diagram
2.2 Product Model Description

Figure 2.2-1 Inverter Model Identifiers

Table 2.2-1 Inverter Model demonstration

Meaning

Meaning

Specification

Product Model Stacked optical storage all in one machine

5Kthe power grade of inverter is 5kw.

Power Grade

Power grade list

3kw/3.68kw/4kw/4.6kw/5kw/6kw

Inverter Model Single-phase hybrid energy storage inverter

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ESI 3-6K-S1

Product Introduction
2.3 Product Capacity Description
The ESI series residential energy storage system supports power and capacity expansion and supports up to six inverter modules in parallel. One inverter module supports up to six batteries expansion modules.

Figure 2.3-1 Storage Capacity Description

Note

This product contains only inverter modules.

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2.4 Product Appearance

Product Introduction

Figure 2.4-1 Inverter front side and back side

Front Side

Back Side

Figure 2.4-2 System front side and back side

1

Inverter

5

2

DC Switch

6

3

LCD display screen

7

4

Battery Module

Pedestal Inverter Radiator Battery Module Radiator

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ESI 3-6K-S1

Product Introduction 2.4.1 Inverter Port

1 6
2

3

7

8

4 9

10 5

Right side port

Left side port

Figure 2.4.1-1 Inverter port diagram

1

Grid connection port

6

2

Load connection port

7

3

Inverter signal port

8

4

PV DC Switch

9

5

PV input port

10

WIFI/4G port Battery button switch
Battery DC switch Battery connection port
Battery signal port

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2.5 Buttons and Indicator Lights
1 2

Product Introduction 3

4 Figure 2.5-1 Buttons and indicator lights

1

System power indicator

2

System status indicator

3

Buttons

4

LCD screen

2.5.1 Buttons
Press “back” to the previous screen or enter the main interface. Press “up” to the upper menu option or value plus 1. Press “down” to the lower menu option or value minus 1. Press “ok” to select the current menu option or switch to the next
digit.
2.5.2 System status indicator

System Status
On-grid Standby(On-grid)
Off-grid Alarm

Blue light ON
Flashing

Indicator Green light
ON

Red light ON

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ESI 3-6K-S1

Product Introduction 2.5.3 Battery capacity indicator

Icon

Battery capacity

Capacity explanation

80%-100%

The battery capacity is full

60%-80%

40%-60%

20%-40% 5%-20% 0%-5%

The battery capacity is insufficient, and the
battery generates a low voltage alarm.
The battery enters the standby state

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2.6 Product label

Product Introduction

Note

Figure 2.6-1 The location of the label
The picture is only for reference, please make the object as the standard.

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ESI 3-6K-S1

Product Installation

Product Installation

3.1 Checking Before Installation
Checking Outer Packing Materials
Before opening the battery and inverter package, check whether the outer package is damaged, such as holes and cracks, and check the inverter and battery model. If any damage is found or the inverter and battery model does not match your requirements, please do not open the product package and contact your distributor as soon as possible.
3.2 Installation Tools
Before installation, prepare the following tools:

NO

Tool

Model

Function

Hammer drill

Used to drill holes on

1

Recommend Drill @

the wall.

8mm

Remove and install

2

Screwdriver

screws and wires

Remove and install

3

Cross screwdriver

screws and wires

4

Wire stripper

Used to peel cable

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5 6
7
8 9 10 11 18

Product Installation

M6 socket head wrench Crimping Tool
Multimeter

Secure the backplane and inverter
Use to crimp cable on grid side, load side and CT extensive cable
Check whether the cable connection is correct, the positive and negative terminals of the battery are correct, and the grounding is reliable

Marker

Mark signs

Measuring tape

Measure distance

Level ESD gloves

Ensure the rear panel is properly installed
Installer wear when installing product

ESI 3-6K-S1

Product Installation 12

Safety goggle

Installer wear when drill holes

Installer wear when

13

Mask

drill holes

Remove the output

14

Removal Tool

terminal of the

battery module

Install Fixed support

15

sleeve

rack

Used to crimp OT

16

Crimping tools

connector

3.3 Installation environment
Choose a dry, clean, neat and convenient location for installation. Machine ambient temperature: -10~50; Relative humidity: 5-95% (non-condensing); The product should be placed in a well-ventilated place; There are no inflammable and explosive objects near the
installation position of the product; The product system inverter AC over- voltage level is three; The highest altitude of the installation environment is 4000m. The installation position of the product should be chosen to avoid direct sunlight and snow position.

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Product Installation

.
Figure 3.3-1 Installation Environment Diagram
3.4 Installation Space
To ensure sufficient space for installation and heat dissipation, reserve sufficient space around the ESI series household energy storage system. The requirements are as follows:

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ESI 3-6K-S1

Product Installation

Figure 3.4-1 Installation space diagram

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3.5 Product Installation

Product Installation

Figure 3.5-1 ESI series installation dimensions diagram
Pedestal installation Procedure 1Place the pedestal against a wall and keep it 10 to 25mm away from
the wall. Adjust the hole positions using a level, and mark the hole positions using a marker.
2 To install the pedestal, remove the pedestal, drill holes using a hammer drill ( 8mm, depth range 60-65 mm), and tighten expansion screws to ensure that the base is securely installed.
3 Use a marker to mark holes for securing the battery modules and

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ESI 3-6K-S1

Product Installation

inverters based on the dimensions shown in Figure 3.5-2.

60mm

Inverter
Levelling instrument Third Battery PACK

10~25mm

Left

Right

Second Battery Wall PACK
Baseboard

Ground

First Battery PACK

M6

Enlarged drawing A
A If holes cannot be drilled on the ground,the battery expansion modules must be secured on the wall

55 NN··mm

Figure 3.5-2 Pedestal installation Fixed installation between modules
Procedure 1Align the first battery module on the floor pedestal.

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Product Installation
2 Install connectors on both sides and tighten the six screws using a cross screwdriver.
3Install the remaining battery modules and inverters from bottom to top. (Before installing the next module, ensure that the screws on the side connectors of the previous module are firmly installed.)

Figure 3.5-3 Battery module and inverter installation diagram Support rack installation Procedure
1Drill holes with a hammer drill ( 8mm, depth range 60-65 mm). Reposition and drill the holes, if the original one has a large deviation.

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ESI 3-6K-S1

Product Installation 2Install the support rack B on the wall, and fastening expansion bolt. 3Adjust the support rack A, make sure the holes are matched between
rack A and rack B. 4Connect and fix the rack A and rack B with M6*16 screws.

Figure 3.5-4 Schematic diagram of wall fixing installation

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Electrical Connection

4 Electrical Connection
4.1 Attentions Before Connection

Attention Attention

The voltage in the power conversion circuit of this product is very high. Fatal danger of electric shock or severe burns. All electrical connections of photovoltaic modules, inverters and battery systems must be carried out by qualified personnel. Wear rubber gloves and protective clothing (protective glasses and boots) when operating high voltage/current systems such as inverters and battery systems. This product is mainly applied to photovoltaic energy storage systems for household use. If not used according to the instructions, the protection provided by the equipment may be damaged.

4.2 Preparation of Connection Cables

Figure 4.2-1 System connection diagram U26ser Manual

Electrical Connection Table 4.2-1 Cables prepared by customers

No

Cable

Recommended specifications

1

PV connection cable

UL10269 12AWG

2

AC Grid connection cable

UL10269 8AWG

3

EPS connection cable

UL10269 10AWG

4

Grounding cable

UL10269 8AWG

4.3 Electrical Connection for Internal System

4.3.1 Internal protection grounding cable connection

Connect the grounding cables of the battery module and inverter as shown in Figure 4.3.1-1.

Attention

Be sure to ground for safety. The protective grounding of the chassis shell cannot
replace the PGND cable of the LOAD Port. Ensure that the two PGND cables are reliably connected. When multiple inverters are deployed, ensure that the protection ground points of all inverters are equipotential connected.

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Electrical Connection

Figure 4.3.1-1 Internal grounding cable connection
4.3.2 Power cables connection
As shown in Figure 4.3.2-1, connect the power ports (BAT+, BAT-) of the inverter to the cascading positive and negative power cables (B+,B -) of the battery module. Connect the remaining battery modules from top to bottom, and secure the cables with cable ties. Ensure that the cables are securely connected.
Precautions during installation

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ESI 3-6K-S1

Electrical Connection
If the system capacity is greater than 15kWh, the batteries are connected to the inverter’s battery input interface in two independent groups.

Figure 4.3.2-1 Connection of battery internal DC terminal

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Electrical Connection
4.3.3 Internal communication cable connection
Connect the communication terminals of the inverter and battery module from top to bottom according to 4.3.3-1 in the following figure, and secure them with cable ties. For the communication cable, tighten the large nut and then the small nut. In addition, install a matching terminal resistance on the communication interface of the last battery module in the system.

Figure 4.3.3-1 Internal signal cable connection

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ESI 3-6K-S1

Electrical Connection 4.3.4 Data collector connection
Connect the standard WIFI/4G collector in the inverter package according to 4.3.4-1 in the following figure.

Figure 4.3.4-1 WIFI/4G connection
4.4 External Electrical Connection
4.4.1 External ground Connection of the PGND cable
Procedure 1 Crimp OT terminals Precautions When stripping the cable, do not scratch the core of the cable. The conductor crimping plate of an OT terminal is pressed to form a
cavity that completely covers the conductor core and tightly binds the

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Electrical Connection
OT terminal. The crimping line can be covered with heat shrink tubing or insulation
tape.

Figure 4.4.1-1 Diagram of Crimping OT terminals Procedure 2 The OT terminal is crimped properly, and the ground cable is connected to the position shown in the following figure.

Figure 4.4.4-2 Connect the grounding wire

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ESI 3-6K-S1

Electrical Connection 4.4.2 PV module connection

Recommended DC input cable specifications

Range

CAS (mm2) Recommended value

External cable diameter(mm2)

4.0~6.0

4.0

4.5~7.8

Connection Procedure Step 1Prepare PV positive and negative power cables

1 Positive connector

2

Negative connector

Figure 4.4.2-1 Prepare PV positive and negative power cable Step 2 Insert the crimped photovoltaic positive and negative power cable

into the corresponding photovoltaic connector.

3 Positive connector

4

Negative connector

Figure 4.4.2-2 Prepare PV positive and negative connectors

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Electrical Connection
Step 3Ensure that the DC voltage of each PV string is less than 600V and the polarity of PV cables are correct. Insert the positive and negative connectors into the corresponding PV region of the ESI series inverter until a click is heard. As the figure 4.4.2-3 showing.

Figure 4.4.2-3 Connect PV connector

Caution

Ensure that the DC switch is turned off before removing the PV positive and negative connectors.

Follow-up Step Disconnect the PV connector using an MC4 wrench, as shown in Figure
4.4.2-4.

Figure 4.4.2-4 Disconnect PV connectors

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ESI 3-6K-S1

Electrical Connection 4.4.3 Grid connection
Install AC wiring terminals Take out AC wiring terminals from the carton of the inverter, strip and install cables according to the cable specifications listed in Table 4.4.3-1.

Figure 4.4.3.-1 Wire stripping size Installation Step

LN

PE

After riveting the peeling wire to the insulation terminal, thread it into the lock wire nut and the main body.

Insert the cable into the rubber core according to the wire sequence, make the insulation terminal flush with the surface of the rubber core, and press the screw torque 2.0± 0.1n.m.

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Electrical Connection

The body is inserted into the core and a click is heard

Tighten the nut with an open wrench and make a “click” sound

Insert the female end of the wire into the male end and hear a “click” sound.

Installation complete

Figure 4.4.3-2 Installation Procedure Diagram

Removal Step

Use a screwdriver to point at the unlocking position, hold the cable driver, and pull it back to separate the male and female.

The female connector is separated from the board connector.

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ESI 3-6K-S1

Electrical Connection

Hold the unlocking buckle with one hand and rotate it in the direction indicated, while rotate the nut in the opposite direction with the other hand.

Remove the red circles on both sides using a screwdriver.

Figure 4.4.3-3 Removal procedure

Connect the AC wiring terminals to the corresponding AC Grid ports, as shown in the following figure.

Figure 4.4.3-4 Grid connection

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4.4.4 EPS connection

Electrical Connection

According to the cable specifications given in Table 4.2-1, peel the cable according to the following figure 4.4.4-1. Then install the EPS connector according to 4.4.4-2. Finally, insert the installed EPS connector into the corresponding position of the inverter according to Figure 4.4.4-3.

Figure 4.4.4-1 Stripping diagram Install procedure

Crimp terminal

L/N/PE are labeled here Insert the cable into the butt terminal

Crimp the wire with an inner hexagon screwdriver with a screw torque of 1.2± 0.1n.m
38

Insert the subject into the corresponding clasp and hear a “click” sound
ESI 3-6K-S1

Electrical Connection

Screw locking nut into main body, torque 2.5± 0.5n.m

Installation complete

Figure 4.4.4-2 EPS Connector installation

Figure 4.4.4-3 EPS connection

Note

The EPS connector must be connected to the inverter port, even if it is not used.

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Electrical Connection 4.4.5 COM-Multi function communication connection

Figure 4.4.5-1 COM port diagram

Table 4.4.5-1 Port description

PIN Definition

Function

Comment

1

N/A

N/A

2

UC-A

RS485 differential signal -A

Inverter monitoring

3

UC-B

RS485 differential signal -B

485 signal

4

EN+

RS485 differential signal +

Battery 485 signal

5

EN-

RS485 differential signal –

6

MET-A RS485 differential signal -A

Smart meter 485 signal

7

MET-B RS485 differential signal -B

8

CANH

9

CANL

CAN high data CAN low data

Battery CAN communication signal

10

N/A

N/A

11

N/A

N/A

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ESI 3-6K-S1

Electrical Connection

12

GND

13

D1/5

14

D4/8

15

D2/6

16

D0

17

D3/7

18

CT+

19

CT-

20

N/A

Link Port

Logic interface signal

DRMSLogical
interfaces use for below standard AustraliaAS4777
Europe General 50549German
4105

Current transformer output positive terminal
Current transformer output negative pole
N/A

Current transformer communication signal

Icon 1 2 3
4

Figure 4.4.5-2 Link Port diagram

Table 4.4.5-2 Link Port description

Define

Function

Comment

Link Port 1 Link Port 0

Parallel signal output Parallel signal input

Parallel signal port RJ45

Link Port 1 dip switch
Link Port 0 dip switch

Match resistance on and off

The dial switch has ON (dial up) and 1 (dial down). 1 means
off.

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Electrical Connection
The wire stripping is divided into 2 to 9 holes and 12 to 19 holes. The wire stripping size is defined according to the cable.

Figure 4.4.5-3 Schematic diagram of wire stripping size 1. RS485Wired monitoring or inverter cascade monitoring
Refer to the figure shown below, connect the RS485+ and RS485- of the inverter to the TX+ and TX- of the RS485 USB adapter, and connect the COM port of the adapter to the computer.

Note

The length of the RS485 communication cable should be less than 1000 m.

Connect pins as shown(2pin and 3pin)

Figure 4.4.5-4 RS485 wiring diagram

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RS485 wires are connected in parallel between inverters.

Note

When multiple inverters are connected via RS485 wires, set communication address to differentiate the inverters
please refer to this manual <5.4.1 System setting6.Communication Addr>.

2. Logic interface The logic interface pin definitions and circuit connections are as follows:

Logic interface pin are defined according to different standard requirements

aLogic interface for AS/NZS 4777.2:2020, also know n as inverter demand response modes (DRMs).

The inverter will detect and initiate a response to all supported demand response commands within 2 s. The inverter will continue to respond while the mode remains asserted.

Table 4.4.5-3 Function description of the DRMs terminal

Pin NO. 12 13 14 15 16 17

Function GND D1/5 D4/8 D2/6 D0 D3/7

b Logic interface for EN50549-1:2019, is in order to cease active power output within five seconds following an instruction being received at the input interface.
The inverter can be connected to a RRCR (Radio Ripple Control Receiver) in order to dynamically limit the output power of all the inverters in the installation.

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Figure 4.4.5-5 DRMs wiring diagram Table 4.4.5-4 Function description of the terminal

COM Pin NO. Pin name

Description

Connected to (RRCR)

PIN 16(PIN2)

L1

Relay contact 1 input

K1 – Relay 1 output

PIN 12(PIN1)

G

GND

K1 – Relay 1 output

Table 4.4.5-5 The inverter is preconfigured to the following RRCR power levels, close is 1, open is 0

L1

Active Power

Power drop rate

Cos()

1

0%

5 seconds

1

0 3.Meter/CT

100%

/

1

PIN6 and PIN7 of COM are used for meter communication, the electricity meter is shown in the Figure 4.4.5-6, PIN6 and PIN7 correspond to 7, 8 respectively on the electricity meter, as shown in Figure 4.4.5-6.

The connection mode is shown in Figure 4.4.5-6. The 1/2 and 3/4 on the electricity meter are connected to voltage signals L and N respectively. And the current needs to be connected through the current transformer, 6, 7correspond to the current transformer.

NOTE: The direction of the current transformer is shown in Figure 4.4.5-6.

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HY33C1

Figure 4.4.5-6 Meter

If you need to use the CT alone, attach the CT to PIN18 and PIN19.

There are two ways to get grid current information:

Plan A: CT (default)

Plan B: Meter +CT

If you need to use the meter +CT scheme, please contact SOFAR staff to purchase the appropriate meter and CT.

COM Installation procedure for connecting cables

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Remove the plug from the plug and thread the terminal in the order shown

Insert the wire into the
corresponding terminal

Crimp the wire with a flat-head screwdriver with a torque of 1.2± 0.1n.m

Line core, rubber core area can not appear riding line phenomenon, rubber core into the main body with a “click” sound

Insert the plug into the body and plug the unwired hole

Screw the lock nut into the main body, torque 2.5± 0.1n.m, complete installation

Figure 4.4.5-7 Procedure for connecting COM cables

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Insert the stripped COM connector into the corresponding port of the inverter, as shown in the following figure.

Figure 4.4.5-8 COM connection
4. Feed-in limit function
The feed-in limit function can be used to limit the power fed
back into the grid. In order to achieve this function, power measurement devices must be installed according to the system.
Single-phase limit: The power output of the inverter to the power grid does not exceed the set power limit value.
NOTE:

1. For the Single-phase limit setting, the current sensor must be properly connected to the L line on the meter. The meter wiring is shown in Figure 4.4.5-6. In addition, refer to 5.3.2(3) for feed-in limit settings.
2. If communication with the smart meter is interrupted, the inverter limits its output power to the set power limit value.

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4.4.6 Smart Meter /CT

Electrical Connection

Refer to the COM interface description in Figure 4.4.5-6 Meter, the RS485A and RS485B of the electricity meter should be connected to pin6 and pin7 of the COM port of the inverter.

Figure 4.4.6-1 Smart meter/CT connection diagram
4.5 Install the cover
After electrical connections are complete and cable connections are correct and reliable, install the external protective cover and secure it using screws.

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Figure 4.5-1 Install the cover
4.6 Parallel system
Refer to figure 4.6-1 below and connect the system in parallel according to the success of the master and slave (up to 6 units). The dip switch inside the COM 24PIN connector of the first and last system inverter should be moved to the position of ON.

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Electrical Connection

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4.7 System Electrical Topology
SOFAR has already integrated RCMU (residual current monitoring unit) inside inverter. If an external RCD is required, a type-A RCD with rated residual current of 100mA or higher is suggested.
ESI series household energy storage system is mainly composed of PV modules, BTS 5K battery modules, inverters, AC switches, load and distribution units, smart meters /CT, and power grid.
The inverters AC GRID and AC LOAD are wired with different N and PE wires depending on the regulatory requirements in different regions. For users in Australia, South Africa and New Zealand, please use the System Electrical Topology in Figure 4.7-2.
System 1: N and PE lines are wired separately in the distribution box The wiring method in Figure 4.7-1 is applicable to areas without special requirements for distribution system wiring.

Figure 4.7-1 System Electrical Topology (General)

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a. Ensure that the AC LOAD PE line and AC GRID PE line must be connected to the PE-BAR in the distribution box, as shown in the diagram. Otherwise, the inverter may be abnormal in off-grid mode.
b. Check whether NeutralPointGrounding is enabled, if not, enable it manually.

2.Advanced setting

Enter 0715 11.NeutralPointGrounding

11. NeutralPointGrounding

Disable

Enable System 2: N and PE lines are connected together in the distribution box The wiring method in Figure 4.7-2 is applicable to areas where N and PE are connected together in the distribution box, such as Australia, South Africa, New Zealand, etc.

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Figure 4.7-2 System Electrical Topology

(For Australia, South Africa and New Zealand)

Danger

Install Residual current device (RCD)in front of the load
RCD is necessary for critical load, but optional for
normal load. In off-grid mode, the Entry master switch is unprotected
and load leakage could lead to shock danger. All RCDs connected to Loads are Type B and its rated earth
leakage action current <30mA.

Danger

Be sure to ensure that the output is grounded
In system 1, The PE line of the inverter’s AC GRID port and AC LOAD port must be grounded through the PE-Bar, otherwise there may be a risk of leakage.

Note

In system 2, NeutralPointGrounding is disabled by default. No manual setup required.

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5 Commissioning
5.1 Checking Before System Starting
Please double check the following items before running 1. The product should be completely fixed on the pedestal bracket, and
the connection with the wall should be tight and firm. 2. The PV+/PV- line is firmly connected, the polarity is correct, and the
voltage is in line with the accessible range. 3. BAT+/BAT- cables are firmly connected, the polarity is correct, and the
voltage meets the accessible range. 4. Grid/load cable connections are firm/correct. 5. The inverter power grid port is correctly connected to the power grid
and the AC circuit breaker is disconnected. 6. The inverter load port is correctly connected to the emergency load, and
the circuit breaker is disconnected.
5.2 Electrify for the First TimeImportant
Important: Please follow the steps below to turn on the inverter. 1. Ensure that the phase connected to the inverter of the product does not
generate power. 2. Switch the DC switch on the PV side of the product to ON. 3. Switch the DC switch on the battery side of the product to ON, and press
the battery black start button to activate the battery. 4. Turn on the AC circuit breaker between the inverter power grid port and
the power grid. 5. Turn on the AC circuit breaker between the inverter load port and the
emergency load.

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6. Press the system power button, and the inverter starts running. The system status indicator is blue.
When the inverter is running, set the following parameters. Table 5-1 Setting parameter

Language selection Set system time[1] Set Safety Param

English French Germany

2022-11-02 14:36:28

Select safety regulation

Please Set the Password[3]

Select country code 001 EN 50549-1

Select country[2] Enter country code

018 EN 50549

Cancel Confirm

019 IEC 61727

[1] If the collector or mobile APP is connected to the monitoring system, the

time has been calibrated to the local time.

[2] Refer to the grid code table below and select country and code. [3] Appears only when UK grid code is selected.

Note

If you select the UK grid code, all passwords will be changed to which you set.

Table 5-2 Safety parameter import

Code

Region

000 000 Germany

000

001 002 Italia

003

000

002

Australia

008

009 003 002 Spain

Grid Code VDE-AR-N 4105 CEI 0-21 Internal CEI 0-21 External CEI 0-21 Areti
Australia-A
Australia-B Australia-C NTS 631-BCD

Description
Germany low-voltage Italy low-voltage 11kVA
Italy low-voltage >11kVA
CEI 0-21 Areti New South WalesVictoria Queenslandsouth Australia Australian Capital Territory Jervis Bay Territory Western Australia Northern Territory Tasmania Spain NTS typeB/C/D

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003

004

006

004 000 Turkey

000

001

005

Denmark

002

003

000

006

Greece

001

007 000 Netherland

000

008

Belgium

002

000

001

009

UK

002

003

000

010

China

009

000

001

003

011

France

004

006

007

012 000 Poland

UNE 217002 RD647 Spain island NTS typeA EN 50549-1 Denmark DK-TR322 Western Denmark Eastern Denmark GR-Continent GR-Island EN 50549-1 C10/11 Belgium-LV G99
G98
G99/NI
G98/NI NB/T 32004-B NB/T 32004-A France FRArrete23 France VFR 2019 VDE 0126 Enedis VFR 2019 Enedis EN 50549-1 Poland-A

000

013

Austria

001

TOR Erzg.-A cos TOR Erzg.-A Q-U

015 000 Switzerland

EN 50549-1

018 001 EN 50549

EN 50549-1

019 000 IEC 61727

IEC 61727

000

021

Sweden

001

Sweden Sweden typeA

022 000 User defined-50 Hz User def.-50 Hz

000

Cyprus

001

024

Cyprus

002

CY-LV-RES CY-LN/MV-COM

003

CY-LV/MV-UT

027 000 New Zealand

New Zealand

000

SK-VSD

029 001 Slovakia

SK-SSE

002

SK-ZSD

030 000 Czechia

EN 50549-1

Commissioning
Spain UNE+RD Spain island Spain NTS typeA Turkey Denmark DK-TR 322 Western Denmark Eastern Denmark GR-Continent GR-Island Netherland low-voltage Belgium Belgium-LV UK output current16A UK output curren16A Nor Ireland output current16A Nor Ireland output current16A NB/T 32004-B NB/T 32004-A France FRArrete23 France VFR 2019 VDE 0126 Enedis VFR 2019 Enedis EN 50549-1 Poland-A:0.2MW Austria TOR A250kW and nominal voltage110kV Austria TOR A250kW and nominal voltage110kV
Switzerland-A EN 50549-1 230V 50Hz IEC61727 230V 50Hz EN 50549-1 Sweden typeA User defined-50 Hz Cyprus CY-LV-RES CY-LN/MV-COM CY-LV/MV-UT New Zealand SK- VSD SK-SSE SK-ZSD EN 50549-1

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002 003 031 000 Slovenia 039 001 Ireland 044 000 South Africa 123 000 Romania 125 000 Finland

PPDS 2023-A1 PPDS 2023 SIST EN 50549-1
EN 50549-1
NRS 097-2-1 ANRE 208 EN 50549-1

AC 16A,typeA1 AC16A,typeA2/B/C/D
Slovenia sigle phase inverter6KVA; three phase inverter 11KVA South Africa-A Romania Finland

It’s very important to make sure that you have selected the correct country code according to requirements of local authority.

Caution

Please consult qualified electrical engineer or personnel from electrical safety authorities about this.
SHENZHEN SOFARSOLAR Co., Ltd. is not responsible for any consequences arising out of incorrect country code selection.

Table 5-3 Default values for other Settings

Item Energy Storage Mode EPS Mode Set Feed-in Limit IV Curve Scan Logic Interface

Default status Self-use Mode Disable Disable Disable Disable

5.3 Steps of Shutdown

Important: Please follow the steps below to turn off the inverter.

1. Close the AC circuit breaker between the inverter grid port and the grid to ensure that the machine is in standby mode;

2. Switch the DC switch on PV side of the product to OFF;

3. Press the battery switch button to turn off the battery output, switch the

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Commissioning

DC switch on the battery side of the product to OFF, and the blue indicator light of the system status goes out;

4. Close the AC circuit breaker between the inverter load port and the emergency load.

5.4 Menu

4 1

2

5

3

6

1

Circulates current PV and battery statue

4

Display current inverter status

2

PV Power

5

Grid Power

3

Battery Power

6

Loads Power

Figure 5-1 Main interface

In the main interface, press ” page.

” button to enter Grid/Battery/PV parameter

Main interface

Grid Information Grid Voltage…………………………………..V Grid Power…………………………………..*.kW Grid Frequency…………………………..*Hz Total Load Power……………………….kW Battery Information Batt Voltage…………………………………*.V Batt Current…………………………………..A Batt Power…………………………………...kW Batt Temperature……………………………

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Batt SOC……………………………………………% Batt Cycles…………………………………………T PV Information
PV1 Voltage …………………………………..V PV1 Current…………………………………...A PV1 Power…………………………………...*kW PV2 Voltage …………………………………..V PV2 Current…………………………………...A PV2 Power…………………………………...*kW PV-Ext Power……………………………..*.kW In the main interface, press ” ” button to enter main menu. The main menu has the following six options.

Main Interface

1.System Settings 2.Advanced Settings 3.Energy Statistic 4.System Information 5.Event List 6.Software Update 7.Battery Real-time Information

5.4.1 System Setting

1. System Settings

1.Language Settings
2.Time 3.Safety Param. 4.Energy Storage Mode 5.Auto Test[1] 6.EPS Mode 7.Communication Addr.

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[1] Appears only when Italian grid code is selected.

Commissioning

1. Language Settings Used to set the menu display language.
1.Language Settings
2. System Time Set the system time for the inverter.

1. 2.English 3.Italiano 4.Português 5.Deutsch 6.Cestina 7.Française 8.Español 9.Polski 10.Suomi

2.Time

Time 2022-05-13 17:07:00

3. Safety Parameter.

3.Safety Param.

Enter 0715 1.Select safety regulations

Select the correct safety regulations according to the Table 5-2. 4. Energy Storage Mode

4.Energy Storage Mode

1.Self-use Mode 2.Time-of-use Mode

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3.Timing Mode

4.1 Self-use Mode

4.Passive Mode

In Self-use mode, inverter will automatically charge & discharge the battery.

1. If PV power = load power (including emergency load and ordinary load), the inverter will not charge and discharge the battery.

2. If PV generation > LOAD consumption, the surplus power will be stored in the battery.

3. If the battery is fully charged or has reached its maximum charging power, the remaining power is sent to the grid (with Feed-in Limitation enabled, the remaining power is not sent to the grid).

4. If the PV power is less than the load power, the inverter will supply power to the load through battery discharge.

5. If the PV power plus battery power is still less than the load power, the inverter will purchase power from the grid to supply power to the load.

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4.2 Time-of-use Mode

If electricity is more expensive in high demand time (peak rate) & electricity is much cheaper in low demand time (off-peak rate). You can select an off-peak period to charge your battery. Outside the off-peak charge period, inverter is working in Auto Mode.

If your family normally go to work/school on weekdays & stay at home on weekends, which means the home electricity consumption is much higher on weekends. Thus, you need to store some cheap electricity on weekends only. This is possible using our Time-of-use mode.

In summer, if your PV system can produce more electricity than your home electricity consumption. Then you don’t need to set an off-peak charge period to charge your battery in summer at all. You can select an effective date (normally winter) for Time-of-use mode in this case. Outside the effective date, inverter is working in Auto Mode.

You can set multiple Time-of-use rules to meet your more complex requirement. Right now we support 4 rules maximum (rule 0/1/2/3).

2.Time-of-use Mode
4.3 Timing Mode

Time-of-use Mode

Rules. 0: Disabled

From

To

SOC

02h00m –

04h00m

70%

Effective Date

Dec. 22

–

Mar. 21

Weekday select

Mon. Tue. Wed. Thu. Fri. Sat. Sun.

Charge 01000W

Changing the value of a rule can set multiple timing rules.

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4.4 Passive Mode

Timing Mode Rules. 0: Enabled/Disabled Charge Start Charge End Charge Power DisCharge Start DisCharge End DisCharge Power

22 h 00 m 05 h 00 m
02000 W 14 h 00m 16 h 00m 02500 W

4.Passive Mode For more detailed information, please ask representative of SOFAR to get a copy of passive mode communication protocol. 5. EPS Mode

5.EPS Mode

1.EPS Mode Control

1If PV generation > LOAD consumption(P > 100W), inverter will charge battery.

2If PV generation = LOAD consumption(P > 100W), inverter wont’ charge or discharge battery.

3If PV generation < LOAD consumption(P 100W), inverter will discharge battery.

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6. Communication Addr 6.Communication Addr

Commissioning
1.Communication Addr. 2.Baud Rate

5.4.2 Advanced Setting

2.Advanced setting

Enter 0715

1.Battery Parameter 2.Battery Active 3.Set Feed-in Limit 4.IV Curve Scan 5.Logic Interface 6.Factory Reset 7.Reset Password[1] 8.Parallel Settings 9.Reset Bluetooth 10.CT Calibration 11.NeutralPointGrounding 12.Set PCC Power Offset [1] Appears only when UK grid code is selected.

1. Battery Parameter

1.Battery Parameter

1.Battery Number

2.Battery1

Battery Number

Group 1 represents the number of cascading battery modules for the BAT1 port of the inverter.

Group 2 represents the number of battery modules connected to the BAT2

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Commissioning port of the inverter. Battery 1

2.Battery 1

1.Depth of Discharge

2.Enable Force Full Charge

Depth of Discharge

3.Save

For example: if Depth of Discharge = 50% & EPS Depth of Discharge = 80%.

While grid is connected: Inverter won’t discharge the battery when its SOC is less than 50%.

In case of blackout: Inverter will work in EPS mode (if EPS mode is enabled) & keep discharging the battery till battery SOC is less than 20%.

3.Depth of Discharge 2. Battery Active

Depth of Discharge

(on-grid)

80%

Depth of Discharge

(off-grid)

80%

2.Battery Active 3. Set Feed-in Limit

1.Auto Active Control 2.Force Active

Users can limit the maximum power sent from the system to the grid by enabling Feed-in Limit. Counter current power is the maximum power expected to be sent to the grid (e.g., 0KW means no energy is fed into the grid).

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3.Set Feed-in Limit

Commissioning
1.Feed-in Limit 2.Hard Limit Control 3.Feed-in Power 4.PCC Limit Scheme Config

4.PCC Limit Scheme Config 4. IV Curve Scan

1.PCC Limit bit 2.Device type 3.Current limit percent 4.Lock enable bit 5.Reset flag bit 6.Lock flag bit cleared 7.Status query

When a component of PV modules is blocked or abnormal, multiple power peaks occur, the maximum power peaks can be traced by enabling this function.

The user can enter the scan period to make the inverter scan immediately.

4.IV Curve Scan 5. Logical Interface

1.Scan Control 2.Scan Period 3.Force Scan

Enable Disable ***min

Enables or disables a logical interface. This feature is only available under certain safety regulations.

5.Logical Interface

DRM0:

Enable

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6. Factory Reset

DRMn:

Disable

6.Factory Reset

1.Clear Energy Data

2.Clear Events

3.Factory Reset

Clear the total energy yield of the inverter.

1.Clear Energy Data

Cancel

Clear the history events of the inverter.

Enter 0715

2.Clear Events 7. Reset Password

Cancel

7.Reset Password

Please Set the Password

Cancel

Confirm

8. Parallel Setting

User Password Set to

Cancel

Confirm

For the parallel system, please refer to <4.6 Parallel System > .

8.Parallel Settings

1.Parallel control

2.Set Master/Slave 3.Set Parallel Address 4.Save 1) Parallel control: Enable or disable the parallel function. This function must be enabled on both the master and slave machines.

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2. Set master and slave: Set the master and slave. Select one inverter as the master and the others as slave machines.
3. Set parallel address: Set the parallel address for each inverter. In a parallel system, each inverter should have a parallel address that does not duplicate that of other machines. (Note: Parallel addresses are different from communications addresses used for monitoring.)
4. Save: Be sure to save after the Settings.
   9. Reset Bluetooth

9.Reset Bluetooth 10. CT Calibration

Please Confirm

Succeed

Used to calibrate the orientation and phase of the CT. The battery should be charged or discharged when using this feature.

10.CT Calibration

Start CT Calibration?

11. NeutralPointGrounding

Succeed/Failed

11. NeutralPointGrounding 12. Set PCC Power Offset

Disable Enable

12.Set PCC Power Offset

Disable Enable

5.4.3 Energy Statistic 3.Energy Statistic

Today PV ……………………………………………….***kWh

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Load …………………………………………..kWh Export………………………………………..kWh Import……………………………………….kWh Charge……………………………………….kWh Discharge…………………………………kWh
Month
PV ……………………………………………….kWh Load …………………………………………..kWh Export………………………………………..kWh Import……………………………………….kWh Charge……………………………………….kWh Discharge…………………………………kWh
Year
PV ……………………………………………….kWh Load …………………………………………..kWh Export………………………………………..kWh Import……………………………………….kWh Charge……………………………………….kWh Discharge…………………………………kWh
Lifetime
PV ……………………………………………….kWh Load …………………………………………..kWh Export………………………………………..kWh Import……………………………………….kWh Charge……………………………………….kWh Discharge…………………………………***kWh

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5.4.4 System Information 4.System Information

Commissioning
1.Inverter Info 2.Battery Info 3.Safety Param. 4.PCU Info 5.BMS Info

1.Inverter Info 2.Battery Info

Inverter Info (1) Product SN Hardware Version Power Level Inverter Info (2) Software Version Country Safety Lib Version Inverter Info (3) Energy Storage Mode RS485 Address Inverter Info (4) Logic Interface Power Factor Inverter Info (5) Feed-in Limit Insulation Resistance
Battery 1 Info (1)

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3.Safety parameters.
4.PCU Info User Manual

Battery Type Battery Capacity Depth of Discharge Battery 1 Info (2) Max Charge (A) Max Discharge (A) Force Full Charge Start Force Full Charge End
Safety Param.(1) OVP 1 OVP 2 UVP 1 UVP 2 Safety Param. (2) OFP 1 OFP 2 UFP 1 UFP 2 Safety Param.(3) OVP 10mins
PCU Info(1) PCU serial number PCU hardware version
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Commissioning PCU software version

4.BMS Info

BMS Info(1) BMS serial number BMS Software Version Battery Discharge

5.4.5 Event List

Once a fault occurs, the fault information is displayed on the event list page. The event list displays the current event records, including the event ID and occurrence time of each event. You can access the event list screen on the main screen to view detailed information about real-time events. Events are listed by occurrence time, and the latest events are listed first.

5.Event List

1.Current event 2.History event

ID042 IsoFault

2.Historical Fault Information

1.ID001 2020-4-3 14:11:45
2.ID005 2020-4-3 11:26:38

1.ID001 Grid OVP 2.ID005 GFCI Fault

5.4.6 Software Update

You can upgrade the software using the USB flash drive to maximize the performance of the product and avoid abnormal operation caused by software bugs. The upgrade file folder name is firmware. These three upgrade file names are HYD3-6K-HV_ARM_N2.bin, HYD3-6K-HV_DSPM_D0.bin,

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HYD3-6K-HV_DSPS_N4.bin. Step 1 Insert the USB drive into the computer. Step 2 SOFAR will send the upgraded firmware to the users who need to upgrade. After receiving the file, decompress it and save it in a USB flash drive. Step 3 Insert the USB disk into the USB/WiFi interface of the machine. Step 4 Turn on DC switch. Step 5

6.Software Update

Enter 0715

Update(PCS)

Update(BMS)

Update(PCU)

Update(sofar)

Update safety package

Step 6 If the following error occurs, upgrade again. If this situation persists for

several times, contact technical support for help.

USB error

DSPM file error DSPS file error

ARM file error

Upgrading DSPM fail

Upgrading ARM fail Upgrading DSPS fail

Step 7 After the upgrading, turn off the DC switch, wait for the LCD screen to go off, then restore the WiFi connection, and then turn on the DC switch and AC switch again, and the inverter will enter the running state. You can view the current software version in System Info >> Software Version.

5.4.7 Battery real-time Info

7.Battery real-time Info

1.BMS Info

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1.BMS Info

2.PCU Info

Commissioning

BMS Info (BMS1) Batt Voltage…………………………………..*.V Batt Current……………………………………..A Max Charge……………………………………...A Max Discharge………………………………...A Batt SOC………………………………………………%
Batt SOH……………………………………………..%
Batt Temperature……………………………
Batt Cycles……………………………………………**T

2.PCU Info

PCU Info (PCU1) PCU low voltage…………………………..*.V PCU high voltage…………………………***.V PCU low power…………………………..kW PCU state……………………………………………..** Internal temp……………………………………
radiator temp……………………………………

Note

LCD menu may be modified without notice, please refer to the actually displayed interfaces as final. The latest menu can be downloaded from the official website.

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5.5 Monitoring description
The operation information (generated energyalertoperation status) of the inverter can be transferred to PC or uploaded to the server via WiFi(4G is optional). Users can choose to use web or APP for monitoring and viewing according to their needs. You need to register an account and bind the device with the WiFi/4G SN number. The SN number of the WiFi/4G shall be affixed to the package box and the WiFi/4G.
Web: https://home.solarmanpv.com (Recommended browser: Chrome58 Firefox49IE9 and above version)

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Troubleshooting and maintenance

6 Trouble shooting and maintenance
6.1 Troubleshooting
This section describes the potential errors for this product. Please read carefully for the following tips when doing the troubleshooting:
View the warning or error information and error codes displayed on the display to record all error information
If no error message is displayed on the LCD, perform the following steps to check whether the current installation status meets the operating requirements of the inverter:
— Is inverter be installed in a clean, dry, ventilated environment? — Is the DC switch turn off? — Are the cable cross section area and length meet the requirement? — Are the input and output connection and wiring in good condition? — Are the configuration settings correctly for the particular installation? — Is the display panel properly connected to the communication cable and intact? To view the recorded fault information, perform the following steps: On
the home screen, press “XXX” to enter the main menu. Select “Events” and press “XXXX” to enter. Ground fault alarm The integrated inverters in this product comply with the ground fault alarm monitoring of IEC 62109-2 clause 13.9. If a grounding fault alarm occurs, the fault will be displayed on the LCD screen with red light on, and the fault can also be found in the fault history. For the machine equipped

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with WiFi/4G data collector, the alarm information can be seen on the corresponding monitoring website or received through the APP on the mobile phone. List of common events Table 6-1 List of common events

ID No. ID001
ID002
ID003
ID004
ID005 ID008 ID009 ID012 ID013

Name
Grid overvoltage
Grid undervolt
Grid overfreq
Grid underfreq
GFCI Fault IslandFault GridOVP Instant1 InvOVP Reflux OverLoad

Description
The grid voltage is too high
The grid voltage is too low
The grid frequency is too high
The grid frequency is too low
Charge Leakage Fault Island protection error Transient overvoltage of grid voltage Inverter voltage error Feed-in Limit function is faulty

Solution
If the alarm occurs occasionally, the possible cause is that the electric grid is abnormal occasionally. Inverter will automatically return to normal operating status when the electric grid’s back to normal. If the alarm occurs frequently, check whether the grid voltage/frequency is within the acceptable range. If yes, please check the AC circuit breaker and AC wiring of the inverter. If the grid voltage/frequency is NOT within the acceptable range and AC wiring is correct, but the alarm occurs repeatedly, contact SOFAR technical support to change the grid over-voltage, under- voltage, over-frequency, under-frequency protection points after obtaining approval from the local electrical grid operator.
Internal faults of inverter. Switch OFF inverter, wait for 5 minutes, then switch ON inverter. Check whether the problem is solved. If not, please contact SOFAR technical support.

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ID032 N-PE fault

ID042 IsoFault

ID043 ID045 ID046

PEConnect Fault CT Disconnect Reversal Connect

ID047

Parallel Fault

ID049 ID050 ID057 ID059 ID065

Temp Fault_Bat TemFault Radiat1 TemFault Env1 TemFault Inv1 VbusRms Unbalan

ID066

VbusInst Unbalan

ID067 BusUVP ID068 BusZVP

ID069 PVOVP

Neutral ground fault
Low insulation impedance
Ground fault
CT Disconnected Input reverse connection error
Parallel Fault
Battery temperature protection Radiator temperature protection Ambient temperature protection Module temperature protection Unbalanced bus voltage RMS The transient value of bus voltage is unbalanced Bus undervoltage during grid connection Bus voltage low
PV over-voltage

Check the insulation resistance between the photovoltaic array and ground (ground), if there is a short circuit, the fault should be repaired in time. If not solved, please contact SOFAR technical support. Check ac output PE wire for grounding. Check whether the CT connection is correct Check whether the DC input connection is correct Check whether parallel is enabled. Check whether parallel addresses overlap. Check whether the parallel network is connected properly. Make sure the inverter is installed in a place free from direct sunlight. Make sure the inverter is installed in a cool/well-ventilated place. Ensure that the inverter is installed vertically and the ambient temperature is lower than the upper limit of the inverter temperature.
Internal faults of inverter. Switch OFF inverter, wait for 5 minutes, then switch ON inverter. Check whether the problem is solved. If not, please contact SOFAR technical support.
Check whether the PV series voltage (Voc) is higher than the maximum input voltage of the inverter. If yes, adjust the number of PV modules in

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Trouble shooting and maintenance

ID070 BatOVP

ID072

SwBus RmsOVP

Bat over-voltage
Inverter bus voltage RMS software overvoltage

series and reduce the PV string voltage to fit the input voltage range of the inverter. After correction, the inverter will automatically return to normal state. Check whether the battery overvoltage Settings are inconsistent with battery specifications

ID073

SwBus InstantOVP

Inverter bus voltage instantaneous value software overvoltage

ID081 ID082 ID083 ID084
ID085 ID086 ID087 ID088 ID098 ID099 ID100 ID102

SwBat OCP
DciOCP
SwOCP Instant SwBuck BoostOCP SwAc RmsOCP SwPvOCP Instant Ipv Unbalance Iac Unbalance
HwBusOVP
HwBuck BoostOCP
HwBatOCP
HwPVOCP

Battery overcurrent protection by software Dci overcurrent protection Output instantaneous current protection BuckBoost software overcurrent The output RMS overcurrent PV overcurrent software protection PV flows in uneven parallel Unbalanced output current Inverter bus hardware overvoltage BuckBoost hardware overcurrent Battery hardware overcurrent PV hardware

Internal faults of inverter. Switch OFF inverter, wait for 5 minutes, then switch ON inverter. Check whether the problem is solved. If not, please contact SOFAR technical support.

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Trouble shooting and maintenance

ID103 HwACOCP

ID105

Meter Comm Lose

overcurrent Ac output hardware overcurrent
Meters communication fault

ID110 Overload1 Overload Protection

ID113

OverTem Derate

Overtemperature derating

ID114 ID116 ID124 ID125
ID129 ID130 ID131 ID132 ID133

Freq Derating Volt Derating LowBattery Bat Discharge Prohibited
HwAcOCP
BusOVP
HwBusOVP
Ipv Unbalance EPSBatOCP

Frequency derating
Voltage derating
Battery Low
Battery Discharge Prohibit
Output hardware overcurrent permanent fault Bus overvoltage permanent fault Bus hardware overvoltage permanent fault PV unbalance current permanent fault EPS mode battery overcurrent

Check whether the meter is enabled. Check whether the meter wiring is correct Check whether the load power is greater than the inverter output power Make sure the inverter is installed in a place free from direct sunlight. Make sure the inverter is installed in a cool/well-ventilated place. Ensure that the inverter is installed vertically and the ambient temperature is lower than the upper limit of the inverter temperature.
Make sure the grid frequency and voltage are within acceptable range.
Check whether the battery voltage is too low or the battery depth of discharge is too low.
Internal faults of inverter. Switch OFF inverter, wait for 5 minutes, then switch ON inverter. Check whether the problem is solved. If not, please contact SOFAR technical support.

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ID134
ID135 ID138 ID139 ID140 ID141 ID142

AcOCP Instant
Iac Unbalance PVOCP Instant
HwPVOCP
RelayFail Vbus Unbalance SpdFail(DC)

Output transient overcurrent permanent fault Output current imbalance permanent fault Input overcurrent permanent fault Input hardware overcurrent permanent fault Relay permanent fault Bus unbalance permanent fault DC SPD fault

ID145 USBFault

USB fault

Check the USB port of the inverter.

ID152 ID153 ID154 ID156

SafetyVer Fault SciLose(DC)
SciLose(AC) SoftVer Error

Safety parameter version error SCI communication error (DC) SCI communication error (AC) Inconsistent software versions

ID157

BMS1 Comm Fault

Lithium battery communication error

ID162 ID163

Remote Shutdown Drms0 Shutdown

ID177 BMS OVP

Remote shutdown
Drms0 shutdown BMS over-voltage alarm

Please contact SOFAR technical support.
Contact technical support to obtain the upgrade software. Make sure the battery you use is compatible with the inverter. CAN communication is recommended. Check whether the communication cable or port between the battery and the inverter is faulty.
The inverter is shut down remotely.
The inverter is Drms0 shut down.
The lithium battery is faulty. Shut down the inverter and lithium

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Trouble shooting and maintenance

ID178 BMS UVP

ID179 BMS OTP

ID180 BMS UTP

ID181 BMS OCP

ID182 BMS Short

ID808 ID809

HS1 HighTemp Warning Env HighTemp Warning

ID813

StopChg Warning

ID814

StopDchg Warning

ID864

HS1 OverTemp Fault

ID865

OverTemp Fault_Env

ID867 ID872

Can1Com mFault SwBus InstantOVP

BMS under-voltage alarm BMS high temperature alarm BMS low temperature alarm BMS charge and discharge overcurrent BMS Short circuit alarm

battery. Wait for 5 minutes and start the inverter and lithium battery. Check whether the problem is rectified. If not, contact technical support.
Please make sure the battery is installed in a cool well-ventilated place. If The battery is installed correctly, please contact technical support.
Power off and wait for 2 hours. If the problem is not solved, please contact technical support.

Radiator 1 high temperature alarm
Ambient high temperature alarm

Please make sure the battery is installed in a cool well-ventilated place. If The battery is installed correctly, please contact technical support.

Charging prohibition alarm
Discharging prohibition alarm
Over temperature protection of radiator 1 Over temperature protection of ambient temperature Can1 communication failure Bus software overvoltage

If the battery is almost fully, no action is required. Otherwise, please contact technical support. If the battery is almost empty, no action is required. Otherwise, please contact technical support.
Power off and wait for 2 hours. If the problem is not solved, please contact technical support.
If this fault occurs occasionally, wait a few minutes to see whether the problem is solved. If this fault occurs frequently, please contact technical

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ID873 ID874 ID875 ID876 ID879 ID880 ID881 ID882 ID883 ID894 ID895 ID899 ID900 ID901 ID903

SwBus InstantUVP SwBat InstantOVP SwBat InstantUVP SwBat InstantOCP HwOCP
Unrecover BusAvgOV
Unrecover BatAvgUV Unrecover OCPInstant Unrecover HwOCP Unrecover BatActFail Unrecover BusRPP BMS OVOCP SwBat AvgOCP SwAvg OverloadP
SwCBCOCP

Bus software undervoltage Battery software overvoltage Battery software undervoltage Battery software overcurrent Hardware overcurrent
Permanent bus overvoltage
Permanent battery undervoltage Permanent Instant overcurrent Permanent hardware overcurrent Permanent battery activation failed Permanent bus reverse connection BMS overvoltage and overcurrent fault Battery average overcurrent protection Average overload protection Software CBC overcurrent protection

support.
Restart the battery and wait for minutes. If the problem is not resolved, please contact technical support.
Check whether the wiring is correct and restart the battery. If the problem is not resolved, please contact technical support.
If this fault occurs occasionally, wait a few minutes to see whether the problem is solved. If this fault occurs frequently, please contact technical support.

Note

This table only shows part of the events, please go to our website for details.
The events whose ID number over 800 are related to the battery module BTS 5K.

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Trouble shooting and maintenance
6.2 Daily Maintenance
This product usually does not require maintenance or calibration, but ensure that the inverter and the heat sink of the battery module are not covered by dust or dirt. Clean the inverter and battery modules:
Please clean the inverter with an air blower, a dry & soft cloth or a soft bristle brush. Do NOT clean the inverter with water, corrosive chemicals, detergent, etc. Clean radiator:
In order to ensure the normal function and long service life of the product, it is necessary to ensure that there is enough air flow space around the radiator at the rear of the product, and there is no material around the radiator that obstructs the air flow, such as dust or snow, must be removed. Clean the radiator with compressed air, a soft cloth, or a soft brush. Do not use water, corrosive chemicals, cleaning agents, or strong detergents to clean the heat sink.

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Datasheet

7 Datasheet

Note Model PV Input

The following parameters may change without notice, please refer to the user manual and DataSheet on our website.

ESI 3K-S1

ESI 3.68K-
S1

ESI 4K-S1

ESI 4.6K-
S1

ESI 5K-S1

ESI 5K-S1
-A

ESI 6K-S1

Recommended Max. PV Power

4500 Wp

5400 Wp

6000 Wp

6900 Wp

7500 Wp

7500 Wp

9000 Wp

Max. input voltage Start-up Voltage[1] Rated Input Voltage MPPT Voltage Range Number of MPPT Max. Number of Input Strings per MPPT Max. Input Current Max. Isc Battery Voltage Range Number of Battery Input Channels Max. Charging/ Discharging Power Max. Charging/ Discharging Current

3 kW

3.68 kW

550 Vd.c. 100 Vd.c. 360 Vd.c. 85-520 Vd.c.
2 1/1

16/16 A 22.5/22.5 A 350-435 Vd.c.
2

4.6

4 kW

5 kW 5 kW 6 kW

kW

20 A

Battery Type[2]

Lithium-ion

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Datasheet

BMS

Communication

AC Input(Grid)

Rated Input

Voltage

Rated Input

Frequency

Max. Input Current

27.3/ 26.1/ 25.0 A

AC Output(Backup)

Rated Output

Voltage

Rated Output

Frequency

Rated Output

3

Power

kW

Rated Output Current

13.6/ 13.0/ 12.5 A

Rated Apparent

3

Power

kVA

Max. Output Current

13.6/ 13.0/ 12.5 A

Max. Apparent

3

Power

kVA

Peak Output Apparent Power

4.5 kVA, 60s

THDv(@ linear

load)

Switching Time

AC Output(Grid)

Rated Output

Voltage

Rated Output

Frequency

33.5/ 32.0/ 30.7 A
3.68 kW 16.7/ 16.0/ 15.3 A 3.68 kVA 16.7/ 16.0/ 15.3 A 3.68 kVA 5.52 kVA, 60s

CAN

L+N+PE,220/230/240 Va.c.

50/60 Hz

36.4/ 34.8/ 33.3 A

41.8/ 40.0/ 38.3 A

45.5/ 43.5/ 41.7 A

L+N+PE,220/230/240 Va.c.

50/60 Hz

4 kW 18.2/ 17.4/ 16.7 A 4 kVA 18.2/ 17.4/ 16.7 A 4 kVA 6 kVA, 60s

4.6 kW 20.9/ 20.0/ 19.2 A 4.6 kVA 20.9/ 20.0/ 19.2 A 4.6 kVA 6.9 kVA, 60s

5 kW 22.7/ 21.7/ 20.8 A
5 kVA 22.7/ 21.7/ 20.8 A
5 kVA 7.5 kVA, 60s

<3%

10 ms default

L+N+PE,220/230/240 Va.c. 50/60 Hz

45.5/ 43.5/ 41.7 A
5 kW 22.7/ 21.7/ 20.8 A
5 kVA 22.7/ 21.7/ 20.8 A
5 kVA 7.5 kVA, 60s

54.5/ 52.2/ 50.0 A
6 kW 27.3/ 26.1/ 25.0 A 6 kVA 27.3/ 26.1/ 25.0 A 6 kVA 9 kVA, 60s

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Datasheet

Rated Output Power
Rated Output Current
Max. Apparent Power
Max. Output Current
THDi Power Factor Range Efficiency Max. MPPT Efficiency Max. Efficiency European Efficiency Max. Efficiency of Charging/ Discharging[3] Protection DC Switch PV Reverse Connection Protection Battery Reverse Connection Protection Output Short Circuit Protection Output Overcurrent Protection Output Overvoltage Protection

3 kW 13.6/ 13.0/ 12.5 A 3.3 kVA 15.0/ 14.3/ 13.8 A

3.68 kW 16.7/ 16.0/ 15.3 A 3.68 kVA 16.7/ 16.0/ 15.3 A

4 kW 18.2/ 17.4/ 16.7 A 4.4 kVA 20.0/ 19.1/ 18.3 A

4.6 kW 20.9/ 20.0/ 19.2 A 4.6 kVA 20.9/ 20.0/ 19.2 A <3%

5 kW 22.7/ 21.7/ 20.8 A 5.5 kVA 25.0/ 23.9/ 22.9 A

5 kW 22.7/ 21.7/ 20.8 A
5 kVA 22.7/ 21.7/ 20.8 A

6 kW 27.3/ 26.1/ 25.0 A 6.6 kVA 30.0/ 28.7/ 27.5 A

0.8 lagging-0.8 leading

99.9% 97.7% 97.7% 97.7% 97.8% 97.8% 97.8% 97.8% 97.0% 97.0% 97.0% 97.1% 97.1% 97.1% 97.1%
97%

Yes Yes

Yes Yes Yes

Yes

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Datasheet

Insulation Impedance Detection Residual Current Detection Anti-island Protection Surge Protection General Parameter Inverter Topology Protective Class IP Rating Overvoltage Category Operating Temperature Range Relative Humidity Range Max. Operating Altitude Standby Self-consumption [4] Dimensions(WH D) Cooling Mode Weight Communication Display

Yes
Yes Yes PV:Type II, AC:Type II Non-Isolation Class I IP65 AC III, DC II
-10 to +50 (derating above +45)
5%-95% 4000 m (derating above 2000 m)
<10 W
708410170 mm Natural
Approx. 26 kg CAN/RS485/WiFi,Optional:4G/LAN
LCD & APP

[1] Minimum PV voltage to start MPPT operation. [2] Please refer to document “SOFAR inverter Model compatible battery list”. [3] Battery-AC maximum efficiency of battery charge and discharge. [4] Standby loss at rated input voltage.

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Manufacturer’s Warranty and Liability Terms

8 Manufacturer’s Warranty and Liability Terms
SOFAR standard warranty document
Warranty period and calculation method of SOFAR battery products refer to the Quality Assurance Agreement of SOFAR ESI Series Household Energy Storage System.
Extended warranty period
If the purchased battery exceeds the warranty period stipulated in the Warranty Agreement of SOFAR ESI Series Household Energy Storage System, the customer can apply for the extended warranty period by providing the serial number of the product to the sales team of the company, and the Company has the right to reject the purchase application for the extended warranty period that does not meet the requirements. If the original buyer wants to apply for the extended warranty service, please contact the sales team of SHENZHEN SOFARSOLAR Co., LTD to purchase the products that exceed the extended warranty period but have not passed the warranty period stipulated in the Warranty Agreement of SOFAR ESI Series Household Energy Storage System, the original buyer shall bear different extended premiums. Upon purchase of the extended warranty service, our company will issue an extended warranty card to the customer to confirm the extended warranty period.
Invalid warranty clause

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Manufacturer’s Warranty and Liability Terms
Equipment failure caused by the following reasons is not covered by the warranty: 1) The “warranty card” has not been sent to the distributor or Shenzhen SOFARSOLAR Co., LTD; 2) Without the consent of SHENZHEN SOFARSOLAR Co., LTD to change equipment or replace parts; 3) Use unqualified materials to support SHENZHEN SOFARSOLAR Co., LTD ‘s products, resulting in product failure; 4) Technicians who don’t belong to SOFARSOLAR Co., LTD modify or attempt to repair and erase the product serial number or silk screen; 5) Incorrect installation, debugging and use methods; 6) Failure to comply with safety regulations (certification standards, etc.); 7) Damage caused by improper storage by dealers or end users; 8) Transportation damage (including scratches caused by internal packaging during transportation). Please claim directly from the transportation company or insurance company as soon as possible and obtain damage identification such as container/package unloading; 9) Failure to follow the product user manual, installation manual and maintenance guidelines; 10) Improper use or misuse of the device; 11) Poor ventilation of the device; 12) The product maintenance process does not follow relevant standards; 13) Failure or damage caused by natural disasters or other force (such as earthquake, lightning strike, fire, etc).

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91

References

• SOFAR-Energy to Power Your Life
• home.solarmanpv.com

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