Sofar ESI 3K-S1 User Manual
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Sofar ESI 3K-S1 User Manual

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ESI 3~6K-S1-HA1~6
user manual
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Copyright © Shenzhen SOFARSOLAR Co., Ltd

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  • Page 1 ESI 3~6K-S1-HA1~6 user manual Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 2: Table Of Contents

    ESI 3~6K-S1-HA1~6 user manual Table of Content Preface ......................... I Basic Safety Information ..............1 Requirement for Installation and Maintenance ..... 1 Symbols and signs ..............6 Product Introduction ................10 Product overview ..............10 Product Model Description ..........11 Product Capacity Description ..........13 Product Appearence ...............16 Buttons and indicator lights ..........
  • Page 3 ESI 3~6K-S1-HA1~6 user manual External Electrical Connection ........... 41 Install the cover ................ 59 Parallel system ................60 System Electrical Topology ..........62 Commissioning ..................64 Checking Before System Starting ........64 Electrify for the First Time（Important） ......64 Menu ..................... 67 Trouble shooting and maintenance ..........

  • Page 4: Preface

    (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 customer's feedback.
  • Page 5 ESI 3~6K-S1-HA1~6 user manual Initial version  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 ...
  • Page 6 ESI 3~6K-S1-HA1~6 user manual “Warning” indicates a hazardous situation which, if not avoided, could result in death or serious injury Warning “Caution” indicates a hazardous situation which, if not avoided, could result in minor or moderate injury Caution “Attention” indicates there are potential risks, if fail to prevent, may lead to equipment cannot normally or property damage.

  • Page 7: Basic Safety Information

    ESI 3~6K-S1-HA1~6 user manual 1. Basic Safety Information Outlines of this Chapter Please read the instruction carefully. Faulty operation may cause serious injury or death . If you have any question or problem when you read the following information, please contact SHENZHEN SOFARSOLAR CO., Ltd.
  • Page 8 ESI 3~6K-S1-HA1~6 user manual 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.
  • Page 9 (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. Installation location requirement ...
  • Page 10 ESI 3~6K-S1-HA1~6 user manual 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.
  • Page 11 ESI 3~6K-S1-HA1~6 user manual All operation must accomplish by certified electrical engineer Must be trained;  Completely read the manual operation and  Warming understand all information. Must get permission by local utility company before connecting to grid and the connection must be done by certified electrical engineers.

  • Page 12: Symbols And Signs

    ESI 3~6K-S1-HA1~6 user manual 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.
  • Page 13 DC voltage (including in low temperature condition). damage cause over-voltage, SOFAR will not take the responsibility Warning including warranty The product has some safety symbols on it. Please read and fully understand the content of the symbols before installation.
  • Page 14 ESI 3~6K-S1-HA1~6 user manual Observe Read all documentation supplied documentation with the product before install Positive pole and Positive pole and negative pole of negative pole the input voltage (DC) Indicated the temperature Temperature allowance range Inverter must always be transported, handled and stored in such a way This side up that the arrows always point...
  • Page 15 ESI 3~6K-S1-HA1~6 user manual disconnect product from voltage sources. All work on the product must be carried out by qualified persons only. The inverter module can get hot Caution of hot during operation. Avoid contact surface during operation. Grounding Connect the battery module to the Terminal ground bar for grounding protection Observe the...

  • Page 16: Product Introduction

    ESI 3~6K-S1-HA1~6 user manual 2. Product Introduction 2.1 Product overview 2.1.1 Product brief introduction ESI series single-phase household energy storage system consists of inverter module and lithium battery module. It adopts modular design and can be stacked with building blocks. The battery capacity ranges from 5kWh to 30kWh.

  • Page 17: Product Model Description

    ESI 3~6K-S1-HA1~6 user manual Figure 2.1.1-1 ESI series application principle diagram 2.2 Product Model Description ESI series inverter model: Figure 2.2-1 Inverter Model Identifiers Table 2.2-1 Inverter Model demonstration Identifiers Meaning Specification Product Stacked optical storage all in one machine ①...
  • Page 18 Model inverter ESI series battery module model： Figure 2.2-2 Battery module model identifiers Table 2.2-2 Battery module model demonstration Identifiers Meaning Specification SOFAR series battery Product series name ① module name Battery module power 5K: Battery module power is ②...

  • Page 19: Product Capacity Description

    ESI 3~6K-S1-HA1~6 user manual Identifiers Meaning Specification Stacked optical storage all in one Product category ① machine 6K，the power grade of inverter is Power grade ② Single-phase hybrid energy Inverter model ③ storage inverter Battery module HA3 means 3 battery modules ④...
  • Page 20 ESI 3~6K-S1-HA1~6 user manual Figure 2.3-1 Storage Capacity Description Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 21 ESI 3~6K-S1-HA1~6 user manual Table 2.3-1 ESI series product model list Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 22: Product Appearence

    ESI 3~6K-S1-HA1~6 user manual 2.4 Product Appearence Front Side Back Side Figure 2.4-1 Product front side and back side Inverter Pedestal DC Switch Inverter Radiator LCD display screen Battery Module Radiator Battery Module Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 23 ESI 3~6K-S1-HA1~6 user manual 2.4.1 Inverter Port Right side port Left side port Figure 2.4.1-1 Inverter port diagram Grid connection port WIFI/4G port Load connection port Battery black start switch Inverter signal port Battery input switch DC Switch Battery connection port PV input port Battery signal port Copyright ©...

  • Page 24: Buttons And Indicator Lights

    ESI 3~6K-S1-HA1~6 user manual 2.4.2 Battery module port Battery Left Side Battery Right Side Figure 2.4.2-1 Battery module port diagram Battery output terminal + Link Port In Battery input terminal Link Port Out 2.5 Buttons and indicator lights Figure 2.5-1 Buttons and indicator lights Copyright ©...
  • Page 25 ESI 3~6K-S1-HA1~6 user manual System power indicator Buttons System status indicator 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”...

  • Page 26: Product Label

    ESI 3~6K-S1-HA1~6 user manual 60%-80% 40%-60% 20%-40% The battery capacity is insufficient, and the 0-20% battery generates a low voltage alarm. 2.6 Product label Figure 2.6-1 Battery module label Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 27 ESI 3~6K-S1-HA1~6 user manual Figure 2.6-2 Inverter label Note: the picture is only for reference, please make the object as the standard. Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 28: Product Installation

    ESI 3~6K-S1-HA1~6 user manual 3. 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.
  • Page 29 ESI 3~6K-S1-HA1~6 user manual Right side cover 1pcs Hanging rack 2pcs Fixed support rack B 2pcs Side connector 2pcs SEM screw M4*10 6pcs Hexagon screws 4pcs M5*10 Hexagon screws 4pcs M6*14 PV+ input terminal 2pcs PV- input terminal 2pcs Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 30 ESI 3~6K-S1-HA1~6 user manual Metal terminals secured to PV+ input power 2pcs cables Metal terminals secured to PV- input power 2pcs cables Battery positive terminal + input 1pcs terminal plastic case Parallel connection 1pcs cable Battery negative terminal + input 1pcs terminal plastic case Battery positive + input...
  • Page 31 ESI 3~6K-S1-HA1~6 user manual Load connector 1pcs Single phase electronic 1pcs rail mounting meter & （optional） current transformer （ CT） Current transformer 1pcs （CT） COM 24pin connector 1pcs Manual 1pcs The warranty card 1pcs Quality Certificate 1pcs Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 32 ESI 3~6K-S1-HA1~6 user manual Battery packing list Pictures Description Quantity Battery module 1pcs Side panel 2pcs Battery power 2pcs connection cable Battery signal 1pcs connection cable Fixed support rack A 2pcs Side connector 2pcs Fixed support rack B 2pcs Ground Wire 1pcs Copyright ©...

  • Page 33: Installation Tools

    ESI 3~6K-S1-HA1~6 user manual Hexagon SEM screws 4pcs M6*14 SEM screws M4*10 10pcs Expansion bolt M6*60 2pcs Terminal resistance 1pcs Quality Certificate 1pcs 3.2 Installation Tools Before installation, prepare the following tools: Tool Model Function Hammer drill Used to drill holes on the wall.
  • Page 34 ESI 3~6K-S1-HA1~6 user manual Remove install Cross screwdriver screws and wires Wire stripper Used to peel cable socket head Secure the backplane wrench and inverter Use to crimp cable on grid side, load side Crimping Tool and CT extensive cable Check whether the cable connection is correct, the positive...

  • Page 35: Installation Environment

    ESI 3~6K-S1-HA1~6 user manual Ensure the rear panel Level is properly installed Installer wear when ESD gloves installing product Installer wear when Safety goggle drill holes Installer wear when Mask drill holes Remove the output Removal Tool terminal of the battery module Install Fixed support sleeve...
  • Page 36 ESI 3~6K-S1-HA1~6 user manual 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. ...

  • Page 37: Installation Space

    ESI 3~6K-S1-HA1~6 user manual 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: Figure 3.4-1 Installation space diagram Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 38: Product Installation

    ESI 3~6K-S1-HA1~6 user manual 3.5 Product Installation Figure 3.5-1 ESI series installation dimensions diagram Pedestal installation Procedure： 1）Place 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.
  • Page 39 ESI 3~6K-S1-HA1~6 user manual expansion screws to ensure that the base is securely installed. 3）Use a marker to mark holes for securing the battery modules and inverters based on the dimensions shown in Figure 3.7-1. ③ ① Inverter Levelling instrument Third Battery 60mm PACK...
  • Page 40 ESI 3~6K-S1-HA1~6 user manual Procedure： 1）Align the first battery module on the floor pedestal. 2 ） Install connectors on both sides and tighten the six screws using a cross screwdriver. 3 ） Install the remaining battery modules and inverters from bottom to top.
  • Page 41 ESI 3~6K-S1-HA1~6 user manual Support rack installation： Procedure： 1）Drill holes with a hammer drill (φ 8mm, depth range 60-65 mm). Reposition and drill the holes, if the original one has a large deviation. 2）Install the support rack B on the wall, and fastening expansion bolt.

  • Page 42: Electrical Connection

    ESI 3~6K-S1-HA1~6 user manual 4. Electrical Connection 4.1 Attentions Before Connection 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.

  • Page 43: Electrical Connection For Internal System

    ESI 3~6K-S1-HA1~6 user manual Table 4.2-1 Cables prepared by customers Cable Recommended specifications PV connection cable UL10269 12AWG AC Grid connection cable UL10269 8AWG EPS connection cable UL10269 10AWG 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.
  • Page 44 ESI 3~6K-S1-HA1~6 user manual 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.
  • Page 45 ESI 3~6K-S1-HA1~6 user manual Precautions during installation： 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 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 Copyright ©...
  • Page 46 ESI 3~6K-S1-HA1~6 user manual figure, and secure them with cable ties. In addition, install a matching resistor on the communication interface of the last battery module in the system. Figure 4.3.3-1 Internal signal cable 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.

  • Page 47: External Electrical Connection

    ESI 3~6K-S1-HA1~6 user manual 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 ...
  • Page 48 ESI 3~6K-S1-HA1~6 user manual 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. Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 49 ESI 3~6K-S1-HA1~6 user manual Figure 4.4.4-2 Connect the grounding wire 4.4.2 PV module connection Recommended DC input cable specifications CAS (mm External cable diameter(mm Range Recommended value 4.0~6.0 4.5~7.8 Connection Procedure： Step 1： Prepare PV positive and negative power cables； Positive connector Negative connector Figure 4.4.2-1 Prepare PV positive and negative power cable...
  • Page 50 ESI 3~6K-S1-HA1~6 user manual Positive connector Negative connector Figure 4.4.2-2 Prepare PV positive and negative connectors Step 3：Ensure 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.
  • Page 51 ESI 3~6K-S1-HA1~6 user manual Figure 4.4.2-4 Disconnect PV connectors 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 4.2-1. Figure 4.4.3.-1 Wire stripping size Installation Step...
  • Page 52 ESI 3~6K-S1-HA1~6 user manual The body is inserted into the core Tighten the nut with an open and a click is heard wrench make "click" sound Insert the female end of the wire into Installation complete the male end and hear a "click" sound Figure 4.4.3-2 Installation Procedure Diagram Removal Step...
  • Page 53 ESI 3~6K-S1-HA1~6 user manual Hold the unlocking buckle with one Remove the red circles on hand and rotate it in the direction both sides using indicated, while rotate the nut in the screwdriver opposite direction with the other hand Figure 4.4.3-3Removal procedure Connect the AC wiring terminals to the corresponding AC Grid ports, as shown in the following figure.
  • Page 54 ESI 3~6K-S1-HA1~6 user manual 4.4.4 EPS connection According to the cable specifications given in Table 4.4.1, 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.
  • Page 55 ESI 3~6K-S1-HA1~6 user manual Crimp the wire with an inner Insert the subject into the hexagon screwdriver with a corresponding clasp and hear screw torque of 1.2± 0.1n.m a "click" sound Screw locking nut into main Installation complete body, torque 2.5± 0.5n.m Figure 4.4.4-2 EPS Connector installation Copyright ©...
  • Page 56 ESI 3~6K-S1-HA1~6 user manual Figure 4.4.4-2 EPS connection 4.4.5 COM-Multi function communication connection Figure 4.4.5-1 COM port diagram Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 57 ESI 3~6K-S1-HA1~6 user manual Table 4.4.5-1 Port description Definition Function Comment RS485 differential UC-A signal -A Inverter monitoring 485 signal RS485 differential UC-B signal -B RS485 differential signal + Battery 485 signal RS485 differential signal - RS485 differential MET-A signal -A Smart meter 485 signal RS485 differential MET-B...
  • Page 58 ESI 3~6K-S1-HA1~6 user manual terminal Current transformer output negative pole Link Port Figure 4.4.5-2 Link Port diagram Table 4.4.5-2 Link Port description Icon Define Function Comment Parallel signal Link Port 1 output Parallel signal port （RJ45） Parallel signal Link Port 0 input Link Port 1 dip switch...
  • Page 59 ESI 3~6K-S1-HA1~6 user manual 2-9 position stripper 12-19 hole stripping Figure 4.4.5-2 Schematic diagram of wire stripping size 1. RS485（ Wired 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.
  • Page 60 ESI 3~6K-S1-HA1~6 user manual 2. Logic interface The logic interface pin definitions and circuit connections are as follows: Logic interface pin are defined according to different standard requirements （a）Logic interface for AS/NZS 4777.2:2020, also known as inverter demand response modes (DRMs). The inverter will detect and initiate a response to all supported demand response commands within 2 s.
  • Page 61 ESI 3~6K-S1-HA1~6 user manual Table 4-9 Function description of the terminal COM Pin NO. Pin name Description Connected to (RRCR) PIN 16(PIN2) Relay contact 1 input K1 - Relay 1 output PIN 12(PIN1) K1 - Relay 1 output Table 4-10 The inverter is preconfigured to the following RRCR power levels,close is 1, open is 0 Active Power Power drop rate...
  • Page 62 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. Installation procedure for connecting cables...
  • Page 63 ESI 3~6K-S1-HA1~6 user manual Line core, rubber core area can not appear Crimp the wire with a flat-head riding line phenomenon, rubber core into screwdriver with a torque of 1.2± 0.1n.m the main body with a "click" sound Insert the plug into the body and Screw the lock nut into the main body, plug the unwired hole torque 2.5±...
  • Page 64 ESI 3~6K-S1-HA1~6 user manual Figure 4.4.5-4 COM connection 4.4.6 Smart Meter /CT Refer to the COM interface description in table 4.1, the RS485A and RS485B of the electricity meter should be connected to pin6 and pin7 of the COM port of the inverter. Copyright ©...

  • Page 65: Install The Cover

    ESI 3~6K-S1-HA1~6 user manual Meter 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. Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 66: Parallel System

    ESI 3~6K-S1-HA1~6 user manual 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 last system inverter should be moved to the position of 1.
  • Page 67 ESI 3~6K-S1-HA1~6 user manual Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 68: System Electrical Topology

    ESI 3~6K-S1-HA1~6 user manual 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.
  • Page 69 ESI 3~6K-S1-HA1~6 user manual Figure 4.7-1 System Electrical Topology (Australian version) Note: If you need to select a cable connection mode based on the power distribution system, set the connection mode on the LCD. In advanced Settings, select off grid grounding to set the connection mode. If the connection mode is improperly set, grounding errors may occur Copyright ©...

  • Page 70: Commissioning

    ESI 3~6K-S1-HA1~6 user manual 5. Commissioning 5.1 Checking Before System Starting Please double check the following items before running The product should be completely fixed on the pedestal bracket, and the connection with the wall should be tight and firm. The PV+/PV- line is firmly connected, the polarity is correct, and the voltage is in line with the accessible range.
  • Page 71 ESI 3~6K-S1-HA1~6 user manual port and the power grid. Turn on the AC circuit breaker between the inverter load port and the emergency load. 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.
  • Page 72 ESI 3~6K-S1-HA1~6 user manual Italia CEI-016 Italia 021 000 Sweden 002 Italia CEI-021 External 022 000 Europe General 003 Italia CEI0-21 In Areti 024 000 Cyprus Australia 025 000 India Australia AU-WA 026 000 Philippines Australia AU-SA 027 000 New Zealand Australia AU-VIC Brazil Australia AU-QLD...

  • Page 73: Menu

    ESI 3~6K-S1-HA1~6 user manual 001 France FAR Arrete23 108 000 Lithuania 012 000 Poland It’s very important to make sure that you have selected the correct country code according to requirements of local authority. Please consult qualified electrical engineer or personnel from electrical safety authorities about this.
  • Page 74 ESI 3~6K-S1-HA1~6 user manual Circulates current PV and battery Display current inverter statue status PV Power Grid Power Battery Power Loads Power Figure 6-1 Main interface In the main interface, press“ ”button to enter Grid/Battery/PV parameter page. Main interface Grid Output Information Grid(V)..
  • Page 75 ESI 3~6K-S1-HA1~6 user manual “ ” 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 5.3.1 System Setting 1.
  • Page 76 USB flash disk card in advance. Note: To enable this feature, please contact the SOFAR technical support. 4. Energy Storage Mode 1.Self-use Mode 4.Energy Storage Mode 2.Time-of-use Mode...
  • Page 77 ESI 3~6K-S1-HA1~6 user manual 4.Passive Mode 4.1 Self-use Mode In Self-use mode, inverter will automatically charge & discharge the battery. If PV power = load power If PV generation > LOAD (including emergency load consumption, surplus ordinary load), power will be stored in the inverter will not charge and battery.
  • Page 78 ESI 3~6K-S1-HA1~6 user manual 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 load. 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).
  • Page 79 DisCharge End 16 h 00m DisCharge Power 02500 W 4.4 Passive Mode 4.Passive Mode For more detailed information, please ask representative of SOFAR to get a copy of passive mode communication protocol. 5. EPS Mode Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 80 ESI 3~6K-S1-HA1~6 user manual 5.EPS Mode 1.EPS Mode Control 1 ） If PV generation > LOAD 2 ） If PV generation = LOAD consumption(ΔP > 100W), consumption(ΔP > 100W), inverter inverter will charge battery wont’ charge or discharge battery. 3 ） If PV generation < LOAD consumption(ΔP 100W), ＞...
  • Page 81 ESI 3~6K-S1-HA1~6 user manual 3.Set Feed-in Limit 4.IV Curve Scan 5.Logic interface 6.Factory Reset 7.Parallel Setting 8. Reset Bluetooth 9.CT Calibration 10.Set ElevtricityMter 11.Off grid ground 1. Battery Parameter Battery Number 1.Battery Parameter Battery1 1 Battery Quantity Group 1 represents the number of cascading battery modules for the BAT1 port of the inverter.
  • Page 82 ESI 3~6K-S1-HA1~6 user manual 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 Discharge Depth EPS Discharge Depth...
  • Page 83 ESI 3~6K-S1-HA1~6 user manual enabling this function. The user can enter the scan period to make the inverter scan immediately. 3.IV Curve Scan Enable 1.Scan Control Disable 2.Scan Period ***min 3.Force Scan 5. Logical Interface Control Enables or disables a logical interface. This feature is only available under certain safety regulations.
  • Page 84 ESI 3~6K-S1-HA1~6 user manual 2.Parallel Primary-Replica 3.Set Parallel Address 4.Save 1．Parallel function control: Enable or disable the parallel function. This function must be enabled on both the master and slave machines. 2．Set master and slave: Set the master and slave. Select one inverter as the master and the others as slave machines.
  • Page 85 ESI 3~6K-S1-HA1~6 user manual 11. Off grid ground Disable 11.Off grid ground Enable 5.3.3 Energy Statistic 3.Energy Statistic Today PV ......***kWh 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 Copyright ©...
  • Page 86 ESI 3~6K-S1-HA1~6 user manual Charge......***kWh Discharge......***kWh Lifetime PV ......***kWh Load ......***kWh Export......***kWh Import......***kWh Charge......***kWh Discharge......***kWh 5.3.4 System Information 1.Inverter Info 4..System Information 2.Battery Info 3.Safety Info 4.Debug Info 3.PCU Info 1.Inverter Info Inverter Info (1) Product SN Hardware Version Power Level Safety Firmware Version Inverter Info (2) Software Version...
  • Page 87 ESI 3~6K-S1-HA1~6 user manual Safety Lib Version Inverter Info (3) Input Channel 1 Input Channel 2 Input Channel 3 Input Channel 4 Inverter Info (4) Energy Storage Mode RS485 Address Inverter Info (5) Logic Interface Power Factor Inverter Info (6) Set Feed-in Limit Insulation Resistance 2.Battery Info...
  • Page 88 ESI 3~6K-S1-HA1~6 user manual Charge Start Charge End 3.Safety parameters. 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 5.3.5 Event List Once a fault occurs, the fault information is displayed on the event list page.
  • Page 89 ESI_ARM.bin, ESI_DSPM.bin, ESI_DSPS.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.

  • Page 90: Trouble Shooting And Maintenance

    ESI 3~6K-S1-HA1~6 user manual 6. Trouble shooting and maintenance 6.1 Troubleshooting This section describes the potential errors for this product. Please  read carefully following tips when doing 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 ...
  • Page 91 If the grid voltage/frequency is NOT ID004 is too low 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, Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 92 Transient inverter, wait for 5 minutes, then ID009 overvoltage of grid switch ON inverter. Check whether voltage 1 the problem is solved. Transient If not, please contact SOFAR ID010 overvoltage of grid technical support. voltage 2 Inverter voltage ID012 error...
  • Page 93 ESI 3~6K-S1-HA1~6 user manual sampling error (DC) Power grid voltage ID020 sampling error (AC) Leakage current ID022 sampling error (AC) Input current ID024 sampling error DCI sampling error ID025 (AC) Branch current ID026 sampling Leakage current ID029 consistency error Grid voltage ID030 consistency error DCI consistency...
  • Page 94 Check whether parallel addresses Paralle lFault overlap ID047 Check whether the parallel network is connected properly SN doesn’t match please contact SOFAR technical ID048 Type support. Radiator 1 Make sure the inverter is installed in a temperature place free from direct sunlight.
  • Page 95 5 minutes, then The transient value switch ON inverter. Check whether of bus voltage is ID066 the problem is solved. unbalanced If not, please contact SOFAR Bus undervoltage technical support. during grid ID067 connection Check whether the PV series voltage (Voc) is higher than the maximum input voltage of the inverter.
  • Page 96 ID082 protection inverter, wait for 5 minutes, then switch ON inverter. Check whether Output the problem is solved. instantaneous ID083 current protection If not, please contact SOFAR technical support. Output effective value current ID085 protection PV overcurrent ID086 software protection...
  • Page 97 Internal faults of inverter, switch OFF inverter, wait for 5 minutes, then switch ON inverter. Check whether Hardware version ID107 the problem is solved. error If not, please contact SOFAR technical support Overload ID110 Protection 1 Overload Check whether the inverter works in...
  • Page 98 5 minutes, then PV unbalance switch ON inverter. Check whether current permanent the problem is solved. ID132 fault If not, please contact SOFAR Output current technical support. imbalance ID134 permanent fault Internal faults of inverter, switch OFF inverter, wait for 5 minutes, then switch ON inverter.
  • Page 99 ON inverter. Check whether Relay permanent the problem is solved. ID140 fault If not, please contact SOFAR technical support. Internal faults of inverter, switch OFF inverter, wait for 5 minutes, then switch ON inverter. Check whether DC SPD failure ID142 the problem is solved.
  • Page 100 ESI 3~6K-S1-HA1~6 user manual communication compatible with the inverter. error CAN communication is recommended. Check whether the communication cable or port between the battery and the inverter is faulty. Force shutdown The inverter is forced to shut down. ID161 Remote shutdown The inverter is shut down remotely.
  • Page 101 ESI 3~6K-S1-HA1~6 user manual Check whether fan 7 of the inverter Fan 7 Fault ID175 works properly Make sure the battery you use is compatible with the inverter. Communication CAN communication is failure of electricity ID176 recommended. Check whether the meter communication cable or port between the battery and the inverter...
  • Page 102 ESI 3~6K-S1-HA1~6 user manual BMSCAN Version ID184 inconsistency BMS CAN Version is ID185 too low Communication failure of arc ID189 equipment Reserved ID401～ Acr fault ID432 The charging soft ID 801 Restart the battery. If the problem is start failed resolved, please contact...
  • Page 103 ESI 3~6K-S1-HA1~6 user manual contact technical support . Over temperature Power off and wait for 2 hours. If the protection of problem is not solved, please contact ID 864 radiator 1 technical support. Over temperature protection of ID 865 ambient temperature Can1 communication...
  • Page 104 ESI 3~6K-S1-HA1~6 user manual undervoltage support. Permanent Instant ID 882 overcurrent Permanent hardware ID 883 overcurrent Permanent battery ID 894 activation failed Check whether the wiring is correct Permanent bus restart battery. ID 895 reverse connection problem resolved, please contact technical support. Battery status error ID 896 Restart the battery.
  • Page 105 ESI 3~6K-S1-HA1~6 user manual Software CBC overcurrent ID 903 protection Restart the battery and wait for seconds. problem Pack ID error ID 904 resolved, please contact technical support. Check whether the wiring is correct restart battery. Battery reversal ID 928 problem resolved, please...

  • Page 106: Daily Maintenance

    ESI 3~6K-S1-HA1~6 user manual 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: ...
  • Page 107 ESI 3~6K-S1-HA1~6 user manual requirements: the charging current is less than or equal to 7A, and the battery module needs to be charged to 50%SOC. Recharge Requirements During Normal Storage  When the battery is stored for a long time, you need to perform regular maintenance.
  • Page 108 ESI 3~6K-S1-HA1~6 user manual Recharge conditions when battery is over discharged Storage Environment Storage Time Note Temperature -10℃～25℃ ≤15 days 25℃～45℃ ≤7 days 30%≤SOC≤60% -10℃～45℃ ≤12 hours Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 109: Technical Parameters

    ESI 3~6K-S1-HA1~6 user manual 7. Technical Parameters System Parameters System Schematic Rated 3000~6000W output power Qty.of batteries Battery 5.12k 10.24k 15.36k 20.48k 25.6kW 30.72k total energy[1] Degree of IP65 protection Ambient -10℃~+50℃ temperatur e range[2] Allowable relative 5%~95% humidity range Max.
  • Page 110 ESI 3~6K-S1-HA1~6 user manual 74.5k 125.5k 176.5k 228.5k 279.5kg 330.5kg Weight 708*17 708*17 708*170 0*1310 0*1310 *1730m 708*1 708*17 708*17 Dimension( 70*89 0*1310 0*1730 W*D*H) 708*17 708*17 708*170 0*900 0*1320 *1320m LCD & APP Display Communica CAN/RS485/WiFi, Optional:4G/LAN tion Inverter Module Model 3K-S 3.68K...
  • Page 111 ESI 3~6K-S1-HA1~6 user manual 140V 185V 215V 235V 235V Full power 280V~5 -500 V-50 ~500 ~500 ~500 ~500 input voltage MPPT operating 85~520V voltage range Number of MPP trackers Max. input 16A/16A current per MPPT Rated grid L/N/PE, 230V,50/60Hz voltage Grid voltage 180Vac-276Vac (According to local standard) range...
  • Page 112 ESI 3~6K-S1-HA1~6 user manual on(Off-grid) A, 60s A, 60s 6 0s Switch time ＜10ms 97.7 97.70 97.7 97.80 97.80 97.80 97.8 0 efficiency of solar inverter European 97.0 97.00 97.0 97.10 97.10 97.10 97.10 efficiency of solar inverter Topology Non-Isolation Dimension(W 708*170*410mm *D*H)
  • Page 113 ESI 3~6K-S1-HA1~6 user manual 1. Test condition：0.2C charge/discharge，25℃，100%DOD 2. Refer to the temperature derating curve. 3. If the altitude is >2000m, derating operation is required, refer to the derating curve. 4. Rated AC power 4600 for VDE-AR-N 4105, 5000 for Australia, 6000 for other country 5.

  • Page 114: Manufacturer's Warranty And Liability Terms

    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...
  • Page 115 ESI 3~6K-S1-HA1~6 user manual Invalid warranty clause 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 change equipment or replace parts;...
  • Page 116 ESI 3~6K-S1-HA1~6 user manual standards; 13) Failure or damage caused by natural disasters or other force (such as earthquake, lightning strike, fire, etc.) Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 117 ESI 3~6K-S1-HA1~6 user manual Copyright © Shenzhen SOFARSOLAR Co., Ltd...

This manual is also suitable for:

Esi 3.68k-s1Esi 4k-s1Esi 4.6k- s1Esi 5k-s1Esi 5k-s1-aEsi 6k-s1

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