1. Manuals
  2. Brands
  3. KEHUA TECH Manuals
  4. Storage
  5. iStoragE3 Series
  6. User manual

KEHUA TECH iStoragE3 Series User Manual

Energy storage system
Hide thumbs Also See for iStoragE3 Series:
Table of Contents

Advertisement

Quick Links

Download this manual
iStoragE3 Series
Energy Storage System
User Manual
i

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the iStoragE3 Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for KEHUA TECH iStoragE3 Series

Summary of Contents for KEHUA TECH iStoragE3 Series

  • Page 1 Series Energy Storage System User Manual...
  • Page 3 Copyright © Xiamen Kehua Digital Energy Tech Co., Ltd. 2022. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Xiamen Kehua Digital Energy Tech Co., Ltd. Trademarks and Permissions and other Kehua trademarks are the licensed trademarks of Xiamen Kehua Digital Energy Tech Co., Ltd.
  • Page 4 User Manual Foreword Summaries Thank you for choosing the iStoragE3 series energy storage system (hereinafter referred to as iStoragE3)! This document gives a description of the iStoragE3 series energy storage system, including the features, performance, appearance, structure, working principles, installation, operation and maintenance.
  • Page 5 Series Energy Storage System User Manual Foreword Symbol Description Alerts you to a high risk hazard that will, if not avoided, result in serious injury or death. Alerts you to a medium low risk hazard that could, if not avoided, result in moderate or minor injury.

  • Page 6: Table Of Contents

    Series Energy Storage System Contents User Manual Contents 1 Safety Description......................... 1 1.1 Safety Announcements ............................. 1 1.1.1 Use Announcements ..........................1 1.1.2 Inverter Symbol Illustration ........................3 1.1.3 Protection for PV Array .......................... 3 1.1.4 ESD Protection ............................4 1.1.5 Grounding Requirements ........................
  • Page 7 Series Energy Storage System User Manual Contents 2.3.2 Battery Pack ............................16 2.4 Size ................................. 16 2.5 Heat Dissipation Illustration ........................... 17 2.6 Application Scenarios ............................. 18 3 Installation............................ 20 3.1 Installation Process ............................20 3.2 Installation Preparation ..........................21 3.2.1 Tools ..............................
  • Page 8 Series Energy Storage System Contents User Manual 4.3.1 Basic Parameter Setting ........................64 4.3.2 System Setting ............................69 4.3.3 Battery Setting ............................70 4.3.4 Grid Setting ............................70 5 Startup and Shutdown ....................... 71 5.1 Startup ................................71 5.2 CEI Self-Check .............................. 72 5.3 Shutdown ...............................

  • Page 9: Safety Description

    Series Energy Storage System User Manual 1 Safety Description 1 Safety Description This chapter mainly introduces the safety announcements. Prior to performing any work on the device, please read the user manual carefully, follow the operation and installation instructions and observe all danger, warning and safety information.
  • Page 10 The surface temperature of the inverter may reach to 80℃. During running, please don't touch the surface to avoid scald. No liquid or other objects are allowed to enter iStoragE3, or, it may cause iStoragE3 series energy storage system damage.

  • Page 11: Inverter Symbol Illustration

    Series Energy Storage System User Manual 1 Safety Description 1.1.2 Inverter Symbol Illustration Table1-1 Inverter symbol illustration Symbol Illustration Beware of a danger zone This symbol indicates that the product must be additionally grounded if additional grounding or equipotential bonding is required at the installation site.

  • Page 12: Esd Protection

    Series Energy Storage System 1 Safety Description User Manual There exists dangerous voltage between the positive and negative of PV array! When installing the device, make sure that the connection between inverter and PV array has been disconnected completely. And set warning mark in the disconnected position to avoid reconnecting.

  • Page 13: Safety Warning Label Setting

    Series Energy Storage System User Manual 1 Safety Description  When the air humidity is more than 95%, don't open the door of the inverter.  In the wet or damp weather, don't open the door of the inverter to maintain or repair.

  • Page 14: Safety Precaution For Battery Pack

    Series Energy Storage System 1 Safety Description User Manual  The connections for measuring device should be correct and standard to avoid arcing. 1.2 Safety Precaution for Battery Pack 1.2.1 General Safety Precautions  Overvoltage or wrong wiring can damage the battery pack and cause deflagration, which can be extremely dangerous.

  • Page 15: Requirements For Operator

    Do not use submerged battery again and contact the service engineer. 1.3 Requirements for Operator The operation and wiring for iStoragE3 series energy storage system should be performed by qualified person, which is to ensure that the electrical connection meets the related standards.

  • Page 16: Overview

    It will bring independence and economy for energy use. iStoragE3 series inverter needs to be used with matched battery packs. Based on actual needs, 1 inverter can be used with 1~8 battery packs together, as shown in Figure2-2.

  • Page 17: Model Meaning

    Series Energy Storage System User Manual 2 Overview Figure2-2 Configuration diagram 2.1.1 Model Meaning Inverter iStoragE 3 □ □K Output power mark 5K means the output power is 5kW 6K means the output power is 6kW And so on.

  • Page 18: Working Mode

     Grid is not available, transfer to off-grid mode Self consumption mode iStoragE3 series product provides energy to loads in priority, then excess PV energy to battery. When PV power is insufficient or no PV power, battery discharge to load.
  • Page 19  Grid is not available, transfer to off-grid mode Energy scheduling mode iStoragE3 series product provides charge and discharge time settings for customers，so they can pre-charge when the price of power is low, and save the energy for use when grid power prices are high.

  • Page 20: Appearance

    External control mode and other modes above can be seleted simultaneously. The other mode will run in out of schedule time. Off-grid mode iStoragE3 series product can be operated in a completely off-grid mode where no grid power is available. BAT is full...

  • Page 21: Battery Pack

    Series Energy Storage System User Manual 2 Overview Table2-1 LED illustration of inverter LED display Status Illustration Blue ON: the system works normally. Red and Blue Flicker ON: minor alarm. alternately Blue Flicker Inverter standby or shut down. Red Flicker Inverter standby or shut down, minor alarm.

  • Page 22: Structure Layout

    Series Energy Storage System 2 Overview User Manual LED display Status Illustration ON: battery fault. Battery power off. 2.3 Structure Layout 2.3.1 Inverter Figure2-7 Structure layout of inverter Table2-3 Structure layout illustration of inverter Mark Name Mark Name ○...
  • Page 23 Series Energy Storage System User Manual 2 Overview DC switch ○ DC switch (as shown in of Figure2-7 2 ) is the connection switch between inverter and PV array.  During installation and wiring, the DC switch must be OFF.

  • Page 24: Battery Pack

    Series Energy Storage System 2 Overview User Manual Definition Definition RSD power supply 0V_ISO DRM COM/LOAD (Only for Australia) Reserved DRM MC (Only for Australia) 2.3.2 Battery Pack Figure2-9 Structure layout of battery pack Table2-5 Structure layout illustration of battery pack...

  • Page 25: Heat Dissipation Illustration

    Series Energy Storage System User Manual 2 Overview Figure2-10 Size of inverter (Unit: mm) Figure2-11 Size of battery pack (Unit: mm) 2.5 Heat Dissipation Illustration The inverter adopts bottom air inlet and top air outlet, as shown in Figure2-12. The battery pack adopts bottom and left sir inlet and top air outlet, as shown in Figure2-13.

  • Page 26: Application Scenarios

    2 Overview User Manual Figure2-13 Heat dissipation diagram of battery pack 2.6 Application Scenarios The iStoragE3 series energy storage system can be applied in DC-coupled system, AC-coupled system and fully off-grid system, as shown in Figure2-14, Figure2-15 and Figure2-16. Meter Grid...
  • Page 27 Series Energy Storage System User Manual 2 Overview Meter Grid Meter INV+BAT Off-grid load PV array PV array On-grid load Figure2-15 AC-coupled system Off-grid load PV array INV+BAT Diesel generator Figure2-16 Fully off-grid system...

  • Page 28: Installation

    Series Energy Storage System 3 Installation User Manual 3 Installation This chapter introduces the installation of the device, including installation process, installation preparation, transportation and unpacking, installation procedure, electrical connection and checking, etc. 3.1 Installation Process Start Completeness check Install？...

  • Page 29: Installation Preparation

    Series Energy Storage System User Manual 3 Installation 3.2 Installation Preparation 3.2.1 Tools Tools Goggles Tape Levelling instrument...

  • Page 30: Installation Environment

     The installed wall or supporter should be with enough bearing capacity. For stably running and long service life, we suggest to install the iStoragE3 series energy storage system in the place where has no directly sunshine, rain or snow. It is good if the installed place with...

  • Page 31: Installation Space

    Figure3-3. Figure3-3 Installation space (unit: mm)  The installation space of iStoragE3 series energy storage system is the same. In above figure, we take 1 INV + 4 BAT as an example to illustrate. ...

  • Page 32: Unpacking And Checking

    Series Energy Storage System 3 Installation User Manual 3.3.2 Unpacking and Checking Select the unpacking site in advance. In principle, the unpacking site should be as close to the installation site as possible. The device has been tested and checked strictly, but it still may be damaged during transporting, so, please check it carefully.

  • Page 33: Mechanical Installation

    The meter is optional, it is provided according to the contract. If the iStoragE3 series energy storage system needs to be stored for a long time after unpacking, it is necessary to pack the device by original package and save properly.
  • Page 34 Series Energy Storage System 3 Installation User Manual Keep the installed place far away from the tube of water, electricity or gas, which is to avoid affect the installation. When installing, please wear safety gloves and safety shoes. Step 1 Install the base.
  • Page 35 Series Energy Storage System User Manual 3 Installation During drilling, please ware safety goggles and a dust mask to prevent dust from entering your eyes. After drilling, please clean the scrap in the installation holes, and then perform the installation.
  • Page 36 Series Energy Storage System 3 Installation User Manual 5. Lead the cover plate into the base module and fix it with screws, as shown in Figure3-10, Figure3-11. Figure3-10 Install the cover plate Figure3-11 Fasten the cover plate If the device is installed on the low-lying position and may have the risk of soaking by rain, we suggest selecting the support to lift the device to avoid damage for the device.
  • Page 37 Series Energy Storage System User Manual 3 Installation Figure3-12 Assemble the support and base 2. Mark the installation holes, as shown in Figure3-13. Figure3-13 Mark the installation holes 3. Drill holes and install the expansion bolts M6, as shown in Figure3-14.
  • Page 38 Series Energy Storage System 3 Installation User Manual Figure3-15 Fix the assembled base Step 2 Mark the installation holes of battery packs and inverter, as shown in Figure3-16~Figure3-18. Figure3-16 Mark the installation holes of bottom battery pack The installation holes of base with support is the same as that of standard configured base, in above figure, we take standard configured base as an example to illustrate.
  • Page 39 Series Energy Storage System User Manual 3 Installation Figure3-18 Mark the installation holes of inverter Step 3 Drill holes and install the expansion bolts M6, as shown in Figure3-19. Figure3-19 Install the expansion bolts (unit: mm) During drilling, please ware safety goggles and a dust mask to prevent dust from entering your eyes.
  • Page 40 Series Energy Storage System 3 Installation User Manual Figure3-20 Fix the bottom battery pack with base Fix the wall bracket (a) of bottom battery pack, as shown in Figure3-21. Figure3-21 Fix the wall bracket (a) Place the battery pack onto the lower battery pack, as shown in Figure3-22.
  • Page 41 Series Energy Storage System User Manual 3 Installation Figure3-22 Place the battery pack While placing the battery pack, the bottom limit holes of the upper battery pack should match the screw on the top of the below battery pack.
  • Page 42 Series Energy Storage System 3 Installation User Manual Figure3-23 Fix the battery pack The installation of adjacent battery pack is the same, in above figure, we take the installation of 2 battery pack as example to illustrate. If the quantity of battery pack ＞4,. It needs to be installed in 2 piles, the other pile of battery packs should be placed at the right of the inverter.
  • Page 43 Series Energy Storage System User Manual 3 Installation 2. Hang the inverter to wall-mounted bracket, as shown in Figure3-25. Figure3-25 Hang the inverter to wall-mounted bracket 3. Fix the inverter, as shown in Figure3-26. Figure3-26 Fix the inverter Step 6...
  • Page 44 Series Energy Storage System 3 Installation User Manual  While connecting the inner wires of system, it is necessary to make the handle on the battery pack vertical to the side, and lead the battery +/- and BMS communication wires go through the handle, and then connect them.

  • Page 45: Electrical Connection

    Series Energy Storage System User Manual 3 Installation  Only the grounding wire of top battery pack needs to be connected to the grounding terminal of inverter, the grounding of other battery packs is connected by the wall bracket (b).
  • Page 46 Series Energy Storage System 3 Installation User Manual The external grounding wire cannot replace the PE wire of AC terminal, they all must be connected with ground reliably. Step 1 Strip the insulation layer of grounding wire for about 7mm, insert the wire into OT terminal and crimp them by crimping tool, the as shown in Figure3-28.

  • Page 47: Dc Input (Pv) Connection

    Series Energy Storage System User Manual 3 Installation  The grounding of the inverter and the lightning rod of the building that inverter installed cannot be the same, the two need to be separated (as shown in Figure3-30), or, lightning stroke will damage the inverter.
  • Page 48 Series Energy Storage System 3 Installation User Manual Use the equipped PV connector and metal terminal to connect the PV input. The PV connecter includes positive connecter and negative connector, they match the corresponding positive metal terminal and negative terminal, corresponding procedure as follows.
  • Page 49 Series Energy Storage System User Manual 3 Installation Figure3-33 Crimp the metal terminal Step 4 Insert the positive wire and negative wire into corresponding insulation crust respectively. If there has a click sound, it means that the wire have been inserted properly, as shown in Figure3-34.

  • Page 50: Grid Connection

    Series Energy Storage System 3 Installation User Manual Step 7 Insert the positive connector and negative connector to the MPPT+ and MPPT– terminals (as shown in Figure3-37) and tighten them. If there has a click sound, it means that the connector have been inserted properly.
  • Page 51 Series Energy Storage System User Manual 3 Installation Table3-2 Recommended AC breaker specification Model AC input specification (GRID) AC output specification (LOAD) iStoragE3 5K iStoragE3 6K iStoragE3 8K iStoragE3 10K iStoragE3 12K During wiring, please pay attention to distinguish the live wire, neutral wire and grounding wire of grid side.
  • Page 52 Series Energy Storage System 3 Installation User Manual  If adopt side wiring, it is necessary to lead the grid wire go through the side wiring hole and then crimp the wires.  In following figure, we take multi-core wire as an example to illustrate.

  • Page 53: Load Connection

    Series Energy Storage System User Manual 3 Installation 3.5.5 Load Connection During wiring, please pay attention to distinguish the live wire, neutral wire and grounding wire of load side. Step 1 Ensure that the external load switch is OFF.
  • Page 54 Series Energy Storage System 3 Installation User Manual Figure3-42 Connect the AC connector It is better to use different color for grid cables. While connecting, please confirm the corresponding connection relationship. Step 3 Insert the AC connector to the BACK UP port, as shown in Figure3-43.

  • Page 55: Wifi/4G Connection

    Series Energy Storage System User Manual 3 Installation 3.5.6 WIFI/4G Connection WIFI and 4G is alternative. it is configured according to user’s actual needs. When the inverter equips WIFI/4G, install it to the WIFI/4G port (as shown in Figure3-44) to monitor on the internet.

  • Page 56: Communication Connection

    Series Energy Storage System 3 Installation User Manual For the use of WIFI/4G, please see the built-in user manual in the packaging of WIFI. 3.5.7 Communication Connection Figure3-46 COM communication connection Meter port Meter communication port is used to communicate with smart meter to achieve zero-export.
  • Page 57 Series Energy Storage System User Manual 3 Installation  If the meter used in the grid side of iStoragE3 product, address is set to A-001.  If the meter used in the PV inverter grid side, address is set to A-002.

  • Page 58: Installation Side Cover Plates

    Series Energy Storage System 3 Installation User Manual Illustration RS485: A. Connect to RJ45's pin6 of communication port in the inverter. RS485: B. Connect to RJ45's pin5 of communication port in the inverter. The setting of the smart meter address is as shown in Figure3-47.

  • Page 59: Check The Installation

    Series Energy Storage System User Manual 3 Installation Figure3-49 Fix the wiring cover plate In above figure, we take I inverter + 4 battery packs as an example to illustrate, other configuration is the same. ----End 3.7 Check the Installation After installation, check the following items: ...

  • Page 60: App Operation

    Series Energy Storage System 4 APP Operation User Manual 4 APP Operation This chapter is mainly introduces the operation of APP. 4.1 First Startup Step 1 Login the following website to download the APP and do WIFI configuration.  Download APP APPSTORE: https://apps.
  • Page 61 Series Energy Storage System User Manual 4 APP Operation Figure4-1 Home interface Step 3 Click the plant to enter the "Plant details" interface, as shown in Figure4-2. Figure4-2 Plant details interface Step 4 Click the "Device List" button to enter the device list interface, as shown in Figure4-3.

  • Page 62: Inverter Information Query

    Series Energy Storage System 4 APP Operation User Manual Figure4-3 Device list ----End 4.2 Inverter Information Query Step 1 Click corresponding SN to view the device status information.
  • Page 63 Series Energy Storage System User Manual 4 APP Operation Figure4-4 Inverter information interface Step 2 Pull-down the interface and click the "More" button to see more information, such as PV information, BAT information, INV information and Grid information. Figure4-5 Inverter information interface...

  • Page 64: Running Information

    Series Energy Storage System 4 APP Operation User Manual 4.2.1 Running Information PV information In the PV information item, you can view PV voltage, PV current and PV power, etc. as shown in Figure4-6. Figure4-6 PV information Battery information In the "Battery information"...
  • Page 65 Series Energy Storage System User Manual 4 APP Operation Figure4-7 Battery information Inverter information In the inverter information item, you can view the inverter voltage, inverter current, etc. as shown in Figure4-8. Figure4-8 Inverter information...
  • Page 66 Series Energy Storage System 4 APP Operation User Manual Grid information In the running information item, you can view grid voltage, gird current, grid-tied power, etc. as shown in Figure4-9. Figure4-9 Grid information  Query software version In the running information item, you can query the currently running software version in "Control...
  • Page 67 Series Energy Storage System User Manual 4 APP Operation Figure4-10 Device information  Query/Select standard type In the "Basic parameter setting" item of "Control" page, in the "Standard type" query or select national standard, such as Austrilia Region A, B, C, Newzealand.
  • Page 68 Series Energy Storage System 4 APP Operation User Manual  Fixed power factor mode and reactive power mode setting. In the "Reactive power mode" of "Basic parameter setting" item, if it is set to "Scheduling by SI", reactive power mode is enabled, and if it is set to "Scheduling by PF", fixed power factor mode is enabled.
  • Page 69 Series Energy Storage System User Manual 4 APP Operation Figure4-13 Hard limit control  Set "Volt-watt response mode". In the "Grid related setting" item, select "Linear" in "P-V mode" to enable Volt-watt response mode, Volt-watt response mode is for charging of multiple mode inverter with energy storage.
  • Page 70 Series Energy Storage System 4 APP Operation User Manual Figure4-14 P-V mode  Password authentication required for setting changes. Password authentication is required when modifying parameters, the password is login password. Figure4-15 Password authentication...

  • Page 71: Status Information

    Series Energy Storage System User Manual 4 APP Operation 4.2.2 Status Information In the "Status information" item, you can view battery information and device information, as shown in Figure4-16. Figure4-16 Status information...

  • Page 72: Control Interface

    Series Energy Storage System 4 APP Operation User Manual 4.3 Control Interface Click the "Control" button in the inverter information interface to enter the control interface, as shown in Figure4-17. Figure4-17 Inverter information The control interface contains basic parameter setting, system setting, battery setting, grid setting, charge &...
  • Page 73 Series Energy Storage System User Manual 4 APP Operation Figure4-18 Basic parameter setting Mode can be set to: time of use mode, backup mode, self consumption mode, energy scheduling mode and external control mode. Time of use mode Step 1 Choose "Disable"...
  • Page 74 Series Energy Storage System 4 APP Operation User Manual Figure4-19 Time of use mode ----End Backup mode Step 1 Choose "Disable" in "External control mode". Step 2 Choose "Backup mode" in "Work mode". Figure4-20 Backup mode...
  • Page 75 Series Energy Storage System User Manual 4 APP Operation Self consumption mode Step 1 Choose "Disable" in "External control mode". Step 2 Choose "Self consumption" in "Work mode". Figure4-21 Self consumption mode Energy scheduling mode Step 1 Choose "Disable" in "External control mode".
  • Page 76 Series Energy Storage System 4 APP Operation User Manual Figure4-22 Energy scheduling mode ----End External control mode Step 1 Choose "Enable" in "External control mode". Step 2 Choose "Battery control first" or "Grid control first". Step 3 Set the corresponding time period.

  • Page 77: System Setting

    Series Energy Storage System User Manual 4 APP Operation ----End Battery Backup Power Setting In grid-tied mode, the setting can prevent inverter from releasing the backup power of battery pack. Once the SOC value of battery reaches the set value, the load is powered only by PV side or grid.

  • Page 78: Battery Setting

    Series Energy Storage System 4 APP Operation User Manual 4.3.3 Battery Setting In the battery setting item, you can set battery charge and discharge power. Figure4-26 Battery setting 4.3.4 Grid Setting In the grid setting item, you can set grid mode including P-V mode, Q-V mode, SPF mode and schedule mode.

  • Page 79: Startup And Shutdown

    Turn on the external load switch. Step 2 Turn on external grid switch. After closing the grid switch, iStoragE3 series energy storage system will be started automatically. Step 3 Turn on the DC switch on the inverter and external PV switch.

  • Page 80: Cei Self-Check

    Series Energy Storage System 5 Startup and Shutdown User Manual 5.2 CEI Self-Check iStoragE3 has the CEI self-check function, which is required only in Italy. Other countries do not need to operate. Self-check function can only be operated in the local APP mode. The specific operation steps are as follows.
  • Page 81 Series Energy Storage System User Manual 5 Startup and Shutdown Figure5-2 Connect to WLAN Step 3 Click "View device" in the logger interface, and then click "Customer". Figure5-3 Enter the customer interface...
  • Page 82 Series Energy Storage System 5 Startup and Shutdown User Manual Step 4 Click "Start" in the monitor interface and click "Done" in the popup. Then the device starts self check. Figure5-4 Start the self check function Step 5 Click "More" in the "Monitor" interface to view the self check info.

  • Page 83: Shutdown

    Series Energy Storage System User Manual 5 Startup and Shutdown ----End 5.3 Shutdown Step 1 Powering off the inverter on the APP. Step 2 Switch off the external PV switch and grid switch, and wait for the inverter indicator light off.

  • Page 84: Maintenance And Troubleshooting

    This chapter mainly introduces the maintenance and troubleshooting for device. 6.1 Maintenance The iStoragE3 series energy storage system needn’t to be maintained regularly, but the sundries or dust may influence the heat dissipation performance, so, use soft brush to clean the inverter. If the LED indicator is too dirty to view, use a wet cloth to clean them.

  • Page 85: Troubleshooting

    Series Energy Storage System User Manual 6 Maintenance and Troubleshooting Table6-1 Maintenance checklist Check Item Acceptance Criteria Maintenance Interval Product The heat sink of the inverter are free from Semiannually or once per year cleanliness obstacles or dust. Product visible...
  • Page 86 Series Energy Storage System 6 Maintenance and Troubleshooting User Manual Table6-2 Inverter troubleshooting Check item Fault description Solution 1. Check whether the grid is normal. Grid voltage exceeds 2. Check whether the wiring of grid is normal. Grid over-voltage the allowable range.
  • Page 87 Series Energy Storage System User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution exists. If it still exists, contact service. 1. Check whether the off-grid output is overload, The current of inverter short circuited or has impact load.
  • Page 88 Series Energy Storage System 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution connection of each port is correct. 4. Confirm to install the device according to the user manual. 5. Restart the inverter to see if the fault still exists.
  • Page 89 Series Energy Storage System User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution alarm rated drop point. 2. Make sure that the inverter is installed according to the manual and there is no block around the inverter.
  • Page 90 Series Energy Storage System 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution abnormal Inner RS485 HMI communication Restart the inverter to see if the fault still exists. communication is abnormal (RS485) If it still exists, contact customer service.
  • Page 91 Series Energy Storage System User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution 1. Charging the battery. Battery under-voltage Battery under-voltage 2. Check the error, if the problem is not be solved yet, please call the service center.
  • Page 92 Series Energy Storage System 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution 1. Confirm if ambient temperature is too low, try to increase ambient temperature. Cell discharge Cell battery discharge under-temperature temperature is too low 2. Wait for 30 minutes after power off. If the problem is not resolved, call for service.
  • Page 93 Series Energy Storage System User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution problem is not be solved yet, please call the service center. 1. Wait for a while, check if the fault is recovery. Output over-current Output over-current 2.
  • Page 94 Series Energy Storage System 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution 4. Install the device according to manual. 5. Check the fault after restart battery, if the problem is not resolved, call for service. 1. Confirm EPO button status.
  • Page 95 Series Energy Storage System User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution 1. Check if the inner battery module is abnormal according to related information. Internal abnormal Host internal abnormal 2. Restart the inverter, if the problem is not resolved, call for service, please call for service.

  • Page 96: Package, Transportation And Storage

    Series Energy Storage System 7 Package, Transportation and Storage User Manual 7 Package, Transportation and Storage This chapter introduces the package, transportation and storage of device. 7.1 Package The device is packaged by carton. When packaging, pay attention to the placing direction requirements.
  • Page 97 Series Energy Storage System User Manual 7 Package, Transportation and Storage Battery storage temperature requirement: short-term (with one month) storage in a clean and ventilated room at -20℃~45℃, long-term (within one year) in a clean and ventilated room at 0℃...

  • Page 98: A Technical Specifications

    Series Energy Storage System A Technical Specifications User Manual Technical Specifications A.1 Inverter Model iStoragE3 iStoragE3 iStoragE3 iStoragE3 iStoragE3 Item PV input Max. input power (W) 9000 9000 18000 18000 18000 Max. input voltage (V d.c.) 1000 MPPT voltage range (V d.c.) 150~900 Max.
  • Page 99 Series Energy Storage System User Manual A Technical Specifications Model iStoragE3 iStoragE3 iStoragE3 iStoragE3 iStoragE3 Item Max. continuous input current 15.2 18.3 24.3 (A a.c.) Rated grid frequency (Hz) 50/60 Grid output Rated output power (VA) Max. apparent power (VA) 5.5K...
  • Page 100 Series Energy Storage System A Technical Specifications User Manual Model iStoragE3 iStoragE3 iStoragE3 iStoragE3 iStoragE3 Item Max. apparent power (VA) Rated voltage (V a.c.) 380/400, 3W+N+PE Rated output current (Aa.c.) 11.6 14.5 17.4 Max. continuous output current 12.7 15.9 17.4...
  • Page 101 Series Energy Storage System User Manual A Technical Specifications Model iStoragE3 iStoragE3 iStoragE3 iStoragE3 iStoragE3 Item Ingress protection IP65 Self consumption at night <10W Operating temperature range -20~50 (Auto derating above 35° C) (℃) Relative humidity 0~100% Cooling Natural 2000 (＞2000m derating)
  • Page 102 Series Energy Storage System A Technical Specifications User Manual Model iStoragEB5-S2 Item Voltage range with full load (V d.c.) 650-800 Max. charge current (A d.c.) 6.15 Max. discharge current (A d.c.) 6.15/7.38 (10s) BAT pack capacity(kWh) 5~40 Basic parameter Size (W×H×D) (mm)

  • Page 103: B Acronyms And Abbreviations

    Series Energy Storage System User Manual B Acronyms and Abbreviations Acronyms and Abbreviations Alternating Current American Wire Gauge Conformite Europeenne Direct Current International Electrotechnical Commission Light-emitting Diode MPPT Maximum Power Point Tracking...
  • Page 104 Series Energy Storage System B Acronyms and Abbreviations User Manual Protective Earthing Photovoltaic RS485 Recommend Standard485 THDi Total Distortion of the input current waveform...
  • Page 105 4402-04406 001...

Table of Contents