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KEHUA TECH iStoragE3 Series User Manual

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Summary of Contents for KEHUA TECH iStoragE3 Series

  • Page 1 Energy Storage System iStoragE3 Series User Manual...
  • Page 3 Copyright © Xiamen Kehua Digital Energy Tech Co., Ltd. 2024. 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: Symbol Conventions

    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, etc.

  • Page 5: Change History

    Energy Storage System iStoragE3 Series 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 Energy Storage System iStoragE3 Series Foreword User Manual Update the description of operation steps and description of precautions in Chapter 5. 10. Update the parameter table in Appendix A. Issue 006 (2023-12-14) Update the description of battery pack indicator, description of scheduling settings, storage temperature and charging time, update the zero-export to zero-export, power-on operation, etc.
  • Page 7 Energy Storage System iStoragE3 Series User Manual Foreword Update 2.6 Application Scenarios. Update 3.2.2 Installation Environment. Update 3.5.4 Grid Connection. Update 3.5.5 Load Connection. Update 4.1 First Startup. Update 4.4.2 Basic Battery Setting. Update 4.4.5 Schedule Setting. 10. Update 4.5.1 External control mode.
  • Page 8 Energy Storage System iStoragE3 Series Foreword User Manual Issue 001 (2022-11-21) First issue.

  • Page 9: Table Of Contents

    Energy Storage System iStoragE3 Series User Manual Contents Contents 1 Safety Description......................... 1 1.1 Safety Announcements ............................. 1 1.1.1 Use Announcements ..........................2 1.1.2 Symbol Illustration ..........................3 1.1.3 Protect From PV Array..........................4 1.1.4 ESD Protection ............................5 1.1.5 Grounding Requirements ........................5 1.1.6 Moisture-proof Protection ........................
  • Page 10 Energy Storage System iStoragE3 Series Contents User Manual 2.2.1 Inverter ..............................17 2.2.2 Battery Pack ............................18 2.3 Structure Layout ............................. 19 2.3.1 Inverter ..............................19 2.3.2 Battery Pack ............................25 2.4 Size ................................. 26 2.5 Heat Dissipation Illustration ........................... 26 2.6 Application Scenarios .............................
  • Page 11 Energy Storage System iStoragE3 Series User Manual Contents 4.3 General Info ..............................76 4.3.1 General Info ............................76 4.3.2 Status Data ............................82 4.4 Control ................................83 4.4.1 Grid Setting ............................84 4.4.2 Basic Setting ............................84 4.4.3 Battery Setting ............................87 4.4.4 System Setting ............................
  • Page 12 Energy Storage System iStoragE3 Series Contents User Manual 7.2 Transportation .............................. 120 7.3 Storage ................................. 120 7.4 Recycle ................................. 121 7.4.1 How to Recycle Used Batteries......................121 A Technical Specifications ......................123 B Acronyms and Abbreviations ....................129...

  • Page 13: Safety Description

    Energy Storage System iStoragE3 Series 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 14: Use Announcements

    Energy Storage System iStoragE3 Series 1 Safety Description User Manual  Installation or use range beyond the provision specified in the related national standards.  Battery damage, fall off deformation, liquid leakage caused by incorrect operation or wrong connection of battery pack.

  • Page 15: Symbol Illustration

    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 16: Protect From Pv Array

    Energy Storage System iStoragE3 Series 1 Safety Description User Manual Symbol Illustration WEEE designation Do not dispose of the product together with the household waste but in accordance with the disposal regulations for electronic waste applicable at the installation site.

  • Page 17: Esd Protection

    Energy Storage System iStoragE3 Series User Manual 1 Safety Description 1.1.4 ESD Protection To prevent human electrostatic damaging sensitive components (such as circuit board), make sure that you wear an anti-static wrist strap before touching sensitive components, and the other end is well grounded.

  • Page 18: Electrical Connection

    Energy Storage System iStoragE3 Series 1 Safety Description User Manual  Set warning marks where the switches are to avoid switching them on improperly.  Set warning signs or safety warning belt in the operation area, which is to avoid human injury or device damage.

  • Page 19: Personal Safety

    Energy Storage System iStoragE3 Series User Manual 1 Safety Description 1.2 Personal Safety During the operation of the device, special insulated tools and special protective devices must be used (such as wearing protective clothing, insulated shoes, safety helmets, insulated gloves, etc.), and it is strictly prohibited to wear watches, bracelets, bangles, rings, necklaces and other easy-to-conduct objects, to avoid electric shock injuries or short-circuit failures.
  • Page 20 Energy Storage System iStoragE3 Series 1 Safety Description User Manual There are no user operable parts inside the device except the AC junction box, do not open the device casing without authorization as there is a risk of electric shock and the resulting device faults are not covered by the warranty.

  • Page 21: Operator Requirements

    Energy Storage System iStoragE3 Series User Manual 1 Safety Description  In the case of a fire, immediately leave the building or the equipment area and activate the fire alarm or call emergency services. Do not enter the affected building or equipment area under any circumstances.

  • Page 22: Response To Emergency Situations

    Energy Storage System iStoragE3 Series 1 Safety Description User Manual  All types of breakdown of the battery may lead to a leakage of electrolyte or flammable gas.  Battery pack is not user serviceable. High voltage is present in the device.

  • Page 23: Requirements For Operator

    Do not use submerged battery again and contact the service engineer. 1.4 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 24: 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 25: Model Meaning

    Energy Storage System iStoragE3 Series 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 26: Work Mode

    Energy Storage System iStoragE3 Series 2 Overview User Manual Battery pack iStoragE B5 - S2 Inner mark Battery capacity mark B5 means that the battery capacity is 5kWh Product series mark iStoragE series energy storage system Figure2-4 Model meaning of battery pack 2.1.2 Work Mode...
  • Page 27 Energy Storage System iStoragE3 Series User Manual 2 Overview Item Battery is full Battery is not full Battery is empty Remaining PV power PV > load PV charges the battery. flows to grid. PV + grid or grid PV < load or PV is Battery discharge.

  • Page 28: Off-Grid Mode

    Energy Storage System iStoragE3 Series 2 Overview User Manual Energy scheduling mode iStoragE3 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 29: Appearance

    Energy Storage System iStoragE3 Series User Manual 2 Overview Item Battery is full Battery is not full Battery is empty PV power is limited to PV supplies power to the load and charges the PV > load load. battery. PV < load or PV is Equipment auto Battery discharge.

  • Page 30: Battery Pack

    Energy Storage System iStoragE3 Series 2 Overview User Manual LED display Status Illustration Inverter powers off. 2.2.2 Battery Pack Figure2-6 Appearance of battery pack Table2-2 LED illustration of battery pack LED display Status Illustration Blue indicator on Battery pack works normally.

  • Page 31: Structure Layout

    Energy Storage System iStoragE3 Series User Manual 2 Overview 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 ○ ○ PV +/- PV input port BACK UP Load connection port ○...
  • Page 32 Energy Storage System iStoragE3 Series 2 Overview User Manual  When the RSD button is pressed down, it will be self-locked, then the system turns to fault protection and disconnects the connection with PV if there are disconnecting devices like TIGO between PV array and the inverter .
  • Page 33 Energy Storage System iStoragE3 Series User Manual 2 Overview Figure2-8 TS4-A-O CCA wiring diagram If the Tigo TS4-A-F or TS4-A-O PV rapid shutdown is not supplied from the factory, it can be fitted to the outside of the inverter at a later date. Tigo TS4-A-F can be fitted by connecting the power supply wires to the parallel ports Pn11 and P12 only.
  • Page 34 Energy Storage System iStoragE3 Series 2 Overview User Manual Figure2-10 RSS installation 2 (PV - through magnetic ring)  Pay attention to the orientation of the magnetic ring, add note: PV+ through the ring, the white side of the ring should face the PV pole plate side, as shown Figure2-9; PV- through the ring, the white side of the ring should face the inverter side, as shown Figure2-10.
  • Page 35 Energy Storage System iStoragE3 Series User Manual 2 Overview Figure2-11 COM port diagram Table2-4 Pin definition of COM port Definition Instruction Reserve RS485-B Reserve for external communication Reserve RS485-A Meter RS485-A External meter communication Meter RS485-B Reserve1_IN Italian external control mode port...

  • Page 36: Parallel Port

    Energy Storage System iStoragE3 Series 2 Overview User Manual Definition Instruction Reserved The wires of RS485_A and RS485_B should be twisted together respectively. When using the tigo-A-0, it is recommended that it be used only in areas with good mains conditions or when the machine is used only as a PV inverter, as this may cause the PV tigo to shut down the PV in the event of a grid drop.

  • Page 37: Battery Pack

    Energy Storage System iStoragE3 Series User Manual 2 Overview Definition Instruction Distribution CAN2-H Reserve Distribution CAN2-L 0V_ISO 12V power GND for external device RSD power supply 12V_ISO External TIGO-A-F RSS transmitter RSD power supply 0V_ISO Reserved Reserved Reserved Reserved WIFI A...

  • Page 38: Size

    Energy Storage System iStoragE3 Series 2 Overview User Manual Table2-6 Structure layout illustration of battery pack Mark Name Mark Name Grounding terminal Battery communication ○ ○ COM. port ○ ○ BAT +/- Battery connection port Breather valve ○ POWER Battery ON/OFF button 2.4 Size...

  • Page 39: Application Scenarios

    2 Overview Figure2-16 Heat dissipation diagram of inverter Figure2-17 Heat dissipation diagram of battery pack 2.6 Application Scenarios The iStoragE3 series energy storage system can be applied in DC-coupled system and fully off-grid system, as shown in below. Figure2-18 DC-coupled system...
  • Page 40 Energy Storage System iStoragE3 Series 2 Overview User Manual Figure2-19 Fully off-grid system...

  • Page 41: Installation

    Energy Storage System iStoragE3 Series User Manual 3 Installation 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 Storage Install？...

  • Page 42: Installation Preparation

    Energy Storage System iStoragE3 Series 3 Installation User Manual 3.2 Installation Preparation 3.2.1 Tools Tools Goggles Tape Levelling instrument...

  • Page 43: Installation Environment

    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 shelter, as shown in Figure3-2.

  • Page 44: Installation Space

    Energy Storage System iStoragE3 Series 3 Installation User Manual  The installation and operation for iStoragE3 should be accord with the local laws and regulations.  iStoragE3 should be installed at the place where out of the reach of children and away from living and working area.

  • Page 45: Transportation And Unpacking

    The size in above figure is the minimum requirements for heat dissipation, for actual case, please take the space of installation and maintenance into account.  The installation space of iStoragE3 series energy storage system is the same. In above figure, we take 1 inverter + 4 battery packs as an example to illustrate. ...
  • Page 46 Energy Storage System iStoragE3 Series 3 Installation User Manual Figure3-4 Packing list of inverter Figure3-5 Packing list of battery pack The meter is optional, it is provided according to the contract. Please take a photo for the QR code of the WIFI/4G module, so as to connect the APP in the future.

  • Page 47: Mechanical Installation

    User Manual 3 Installation  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.  If the battery pack needs to be stored for a long time, it is necessary to charge the battery every half a year.
  • Page 48 Energy Storage System iStoragE3 Series 3 Installation User Manual Figure3-6 Assemble the auxiliary tool Figure3-7 Push the assembled base against the wall Step 2 Tear off the back glue of positioning boards and mark the mounting holes of base module, battery packs and inverter, as shown in Figure3-8, Figure3-9.
  • Page 49 Energy Storage System iStoragE3 Series User Manual 3 Installation Figure3-9 Mark mounting holes Step 3 Remove the positioning boards and auxiliary tool. Step 4 Drill holes and install expansion bolts according to the mark position, as shown in Figure3-11, corresponding size please see Table3-1.
  • Page 50 Energy Storage System iStoragE3 Series 3 Installation User Manual  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 51 Energy Storage System iStoragE3 Series User Manual 3 Installation Figure3-13 Tear off the back glue Fix the bottom battery pack with base module by wall bracket (b), as shown in Figure3-14. Figure3-14 Fix the bottom battery pack with base Mark the mounting holes of support, as shown in Figure3-15.
  • Page 52 Energy Storage System iStoragE3 Series 3 Installation User Manual Drill holes and install the expansion bolts M10, as shown in Figure3-16. Figure3-16 Drill holes and install expansion bolts  During drilling, please ware safety goggles and a dust mask to prevent dust from entering your eyes.
  • Page 53 Energy Storage System iStoragE3 Series User Manual 3 Installation Step 7 Install battery packs. 1. Fix the wall bracket (a) of bottom battery pack, as shown in Figure3-19. Figure3-19 Fix the wall bracket (a) 2. Place the battery pack onto the lower battery pack, as shown in Figure3-20.
  • Page 54 Energy Storage System iStoragE3 Series 3 Installation User Manual 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. 3. Fix the battery pack, as shown in Figure3-21.
  • Page 55 Energy Storage System iStoragE3 Series User Manual 3 Installation Figure3-22 Fix the wall-mounted bracket 2. Hang the inverter to wall-mounted bracket, as shown in Figure3-23. Figure3-23 Hang the inverter to wall-mounted bracket 3. Fix the inverter, as shown in Figure3-24.
  • Page 56 Energy Storage System iStoragE3 Series 3 Installation User Manual Figure3-25 Fasten supports Step 10 Connect the wires of the inverter and battery packs, as shown in Figure3-26. Figure3-26 Battery pack quantity≤ 4 wiring method...
  • Page 57 Energy Storage System iStoragE3 Series User Manual 3 Installation Figure3-27 Battery pack quantity＞ 4 wiring method When the battery pack quantity exceeds 4, you can optionally select a accessary package, including 2 power wires, 1 communication wire, and 1 corrugated pipe.

  • Page 58: Electrical Connection

    Energy Storage System iStoragE3 Series 3 Installation User Manual  During wiring, please ensure that the inverter is power off, and the voltage between other ports to BAT+ and BAT- should be lower than 36V.  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 59: External Grounding Connection

    Energy Storage System iStoragE3 Series User Manual 3 Installation Wire cross-sectional American Item Wire outer diameter area Standard PV power cable 4 mm 4.1~8mm AWG12 Signal cable 0.3mm ~0.75mm 1.3mm~1.8mm AWG24~AWG20 AC power cable 6 mm 4.9mm~6mm AWG10 PE cable 6 mm 4.9mm~6mm...
  • Page 60 Energy Storage System iStoragE3 Series 3 Installation User Manual  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 Figure3-29), or, lightning stroke will damage the inverter.
  • Page 61 Energy Storage System iStoragE3 Series User Manual 3 Installation Figure3-30 Battery pack grounding method ----End...

  • Page 62: Dc Input (Pv) Connection

    Energy Storage System iStoragE3 Series 3 Installation User Manual 3.5.3 DC Input (PV) Connection If the wire is not connected properly, it will generate an arc during operation If there has an alarm, refer to 6.3 Troubleshooting for solution. ...
  • Page 63 Energy Storage System iStoragE3 Series User Manual 3 Installation Figure3-31 Inverter’s DC switch OFF status Step 2 Strip the insulation layer of positive wire and negative wire for about 7mm, as shown in Figure3-32. Figure3-32 Stripping diagram of DC input (unit: mm) It is better to use different color for the positive and negative of PV input.
  • Page 64 Energy Storage System iStoragE3 Series 3 Installation User Manual Figure3-34 Fasten the metal terminal Step 5 Tighten the sealing nuts of positive connector and negative connector to the corresponding insulation crusts respectively, as shown in Figure3-35. Figure3-35 Tighten the sealing nuts...

  • Page 65: Grid Connection

    Energy Storage System iStoragE3 Series User Manual 3 Installation Figure3-37 Connect the PV connector If there are 2 routes of PV input, please connect the first and third group PV connectors to improve the use rate of PV energy. ----End 3.5.4 Grid Connection...
  • Page 66 Energy Storage System iStoragE3 Series 3 Installation User Manual  It's forbidden that several inverters share one AC switch.  It's forbidden to connect load between inverter and grid switch. To ensure the inverter can be disconnected with load safely, we suggest equipping independent dipolar switch for each inverter to protect the inverter.
  • Page 67 Energy Storage System iStoragE3 Series User Manual 3 Installation Figure3-38 Knock down hole of GRID Step 2 Prepare grid connector, as shown in Figure3-39.  If adopt side wiring, it is necessary to lead the grid wire go through the side wiring hole and then crimp the wires.

  • Page 68: Load Connection

    Energy Storage System iStoragE3 Series 3 Installation User Manual Figure3-40 Connect the grid  iStoragE3 has the function of residual current detection, when the residual current larger than the setting value, it will trigger the protection to guarantee the safety of load.
  • Page 69 Energy Storage System iStoragE3 Series User Manual 3 Installation  If the load connection adopts multi-core wires, the wiring must go through the side panel. So, it is necessary to knock-off the wiring hole of grid on the decoration panel, as shown in Figure3-41.

  • Page 70: Communication Connection

    Energy Storage System iStoragE3 Series 3 Installation User Manual Figure3-43 Connect the load  iStoragE3 has the function of residual current detection, when the residual current larger than the setting value, it will trigger the protection to guarantee the safety of load.
  • Page 71 Energy Storage System iStoragE3 Series User Manual 3 Installation Step 2 According to actual use, insert the crimped contact pin to the corresponding pin position of connector, and then connect the connector to the inverter, as shown in Figure3-45. Insert the crimped communication wires to the connector till hearing the sound of "click" and then pull back the wires gently to ensure that the connection is in place.
  • Page 72 Energy Storage System iStoragE3 Series 3 Installation User Manual Figure3-46 Connection diagram of meter  The meter may be changed, if the actual meter does not match the manual, please refer to the manual for the order and method of wiring.

  • Page 73: Installation Side Cover Panels

    Energy Storage System iStoragE3 Series User Manual 3 Installation Illustration Connect to I- port of current transformer of grid output L1. Connect to I+ port of current transformer of grid output L2. Connect to I- port of current transformer of grid output L2.

  • Page 74: Check The Installation

    Energy Storage System iStoragE3 Series 3 Installation User Manual While fixing the cover panels, it is necessary to lead the corresponding wires go through the groove of cover panels and fasten them to avoid extruding for the wires and even cause damage for the wires and affect the normal use.

  • Page 75: App Operation

    Energy Storage System iStoragE3 Series User Manual 4 APP Operation 4 APP Operation This chapter mainly introduces the operation of APP. 4.1 First Startup Step 1 Login the following website or scan the QR code to download the APP. ...
  • Page 76 Energy Storage System iStoragE3 Series 4 APP Operation User Manual 1. Open the APP. 2. Tap Register button. 3. Select By mobile phone or By Email according to actual condition. 4. Enter corresponding information according to prompting. Logger S/N can be entered by scanning the QR code of Wi-Fi on the device.
  • Page 77 Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-2 Main page Step 5 After entering corresponding information, tap Next button at the bottom of the page, it will turn to scan QR code page. Refer to Step 6-Step 8 to add devices and perform device networking. If you tap the Save button on the upper right corner at this time, it will directly skip to Step 9, please refer to the following content to add devices.
  • Page 78 Energy Storage System iStoragE3 Series 4 APP Operation User Manual Step9 Step6 Figure4-3 Enter corresponding information  The item with “*" is required.  Plant type is used to select the device type. For iStoragE3, it must select Energy storage plant, as shown in Figure4-3.
  • Page 79 Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-4 Add device Step 7 Device networking: Select the logger serial number to network, tap Next button. Select the available network in the hotspot list of the phone, enter the password and allow the device to network. Tap Start Configuration to allow the device to connect to the system Wi-Fi and wait for the device to network successfully.
  • Page 80 Energy Storage System iStoragE3 Series 4 APP Operation User Manual Figure4-6 Connecting available networks Figure4-7 Device networking...
  • Page 81 Energy Storage System iStoragE3 Series User Manual 4 APP Operation After the configuration is completed, you need to switch the cell phone network to ensure that the cell phone can access the internet normally. Users can view device information directly through the cloud platform.
  • Page 82 Energy Storage System iStoragE3 Series 4 APP Operation User Manual Figure4-9 Add new device When the surrounding is dark, please tap the Light On button at the bottom to start the flashlight to enhance the brightness. Step 10 If it has already connected the logger to the network, there is no need to configure the network again.
  • Page 83 Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-10 Connect device  If the prompting "There is no protocol available" is showed while setting, please tap the button at the top right corner, and select Protocol update, and wait for the protocol update to be completed, as shown in Figure4-11.
  • Page 84 Energy Storage System iStoragE3 Series 4 APP Operation User Manual Figure4-11 Protocol update Step 11 Tap Local login in the local login page, and select I am owner in the list for account verification. Then, you will need to verify by scanning the logger QR code.
  • Page 85 Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-13 Configure Wi-Fi During the initial network configuration, it is recommended to ask operation and maintenance personnel for help. Step 13 Back to main page, the device status turns to online from offline, as shown in Figure4-14.

  • Page 86: Inverter Information Query

    Energy Storage System iStoragE3 Series 4 APP Operation User Manual Figure4-14 Device list When the logger is offline for a long time, it may cause loss of energy data. ----End 4.2 Inverter Information Query Step 1 In the main page, tap the...
  • Page 87 Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-15 Device list Step 2 Tap the corresponding S/N of device to view the inverter info, as shown in Figure4-16. Figure4-16 Device detail Step 3 Tap the items below to view more info, such as electricity statistics, work mode, battery info etc.

  • Page 88: General Info

    Energy Storage System iStoragE3 Series 4 APP Operation User Manual ----End 4.3 General Info 4.3.1 General Info Due to data volume and network update speed, update every 5 minutes. Grid info Tap General info, you can check the voltage and current, grid power and frequency of L1/L2/L3, as shown in Figure4-17.
  • Page 89 Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-18 Battery info page Load info In the load info item, you can view the load voltage of LI/L2/L3, load power and frequency, etc., as shown in Figure4-19. Figure4-19 Load info page...

  • Page 90: Device Info

    Energy Storage System iStoragE3 Series 4 APP Operation User Manual PV info In the photovoltaic info item, you can view the voltage, current, power of PV1/PV2/PV3 and day energy of PV, etc., as shown in Figure4-20. Figure4-20 PV info page Device info In the device info item, you can view the device S/N, software version, battery pack quantity etc., as...
  • Page 91 Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-21 Device info page Battery pack In corresponding battery pack 1(or 2/3/4 ) page, you can view the S/N, daily charge/discharge, SOC, etc. of battery pack, as shown in Figure4-22.
  • Page 92 Energy Storage System iStoragE3 Series 4 APP Operation User Manual  If the automatic address assignment is not successful, you can use the manual assignment method as follows.  The following operations need to be performed in local mode again, you can refer 4.1 First Startup - Step 10 to enter local mode.
  • Page 93 Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-24 Set the battery number Step 3 Select the serial number you want to change the address for in the list, enter it, change the address directly and tap Confirm button. If there is no serial number in the list that needs to change the address, you need to tap the Enter button below to manually enter the serial number and address.

  • Page 94: Status Data

    Energy Storage System iStoragE3 Series 4 APP Operation User Manual Step 4 After confirming the address, the following is displayed. Figure4-25 Confirming the address You can check whether the setting is successful in the running info-battery pack 1 info-S/N. If the setting is successful, the S/N will change to the S/N of the device whose address is set to 1, as shown in Figure4-26.

  • Page 95: Control

    Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-27 Status info 4.4 Control All of the following settings are the operation and maintenance privileges. User privileges can only set the system time and off-grid discharge cutoff SOC. Back to previous page from general info, tap the icon, it will enter control page.

  • Page 96: Grid Setting

    Energy Storage System iStoragE3 Series 4 APP Operation User Manual 4.4.1 Grid Setting In the grid setting page, you can set the grid level Ⅰ under-voltage protection value, grid level Ⅰ over-voltage protection value and so on, as shown in Figure4-29.
  • Page 97 Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-30 Basic setting page The illustration for the setting in the basic setting page is as follows. Table4-1 Illustration for the setting in the basic setting page Item Illustration The item is used to select whether to auto start when power on.
  • Page 98 Energy Storage System iStoragE3 Series 4 APP Operation User Manual Item Illustration The item is used to select the PV input mode. Normally, it does not DC input mode need to be set. Default is independent. If there are 3 PV arrays to be connected, select 2:1. If there are 2...

  • Page 99: Battery Setting

    Energy Storage System iStoragE3 Series User Manual 4 APP Operation  If the meter cannot operate normally after connection and setting, please contact the installer to set the baud rate and address of the meter.  The meter can be set to Chint splitting meter, Chint three-phase meter, CT.

  • Page 100: Schedule Setting

    Energy Storage System iStoragE3 Series 4 APP Operation User Manual Figure4-32 System setting Please double check the quantity of batteries. 4.4.5 Schedule Setting In the schedule setting page, the reactive power mode, reactive power, reactive power first, etc. can be set, as shown in Figure4-33.

  • Page 101: Work Mode

    Energy Storage System iStoragE3 Series User Manual 4 APP Operation Table4-2 Illustration for schedule setting Item Illustration This item is valid in external control mode. It can be used to select Reactive power mode the form of different power. This item is valid when reactive power mode is set to scheduling by Reactive power(PU.)(%)

  • Page 102: Self-Consumption Mode

    Energy Storage System iStoragE3 Series 4 APP Operation User Manual Figure4-34 Work mode Tap the question mark at the behind of the mode, it will show the illustration for each work mode. Figure4-35 Work mode description Self-Consumption Mode 4.5.1 Step 1 Select Disable in the external control mode.

  • Page 103: Backup Mode

    Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-36 Self-consumption mode ----End 4.5.2 Backup Mode Step 1 Select Disable in external control mode. Step 2 Select Work mode item in the work mode page, then select Backup mode. After tapping and confirming, it will show the settings for Backup mode.

  • Page 104: Time Of Use Mode

    Energy Storage System iStoragE3 Series 4 APP Operation User Manual ----End Time of Use Mode 4.5.3 Step 1 Select Disable in external control mode. Step 2 Select Work mode item in the work mode page, then select Time of use. After tapping and confirming, it will show the settings for time of use.

  • Page 105: External Control Mode

    Energy Storage System iStoragE3 Series User Manual 4 APP Operation Step 3 Tap "+" button to set the period for Energy scheduling. After setting, tap the Save button, the setting will be done. Figure4-39 Energy scheduling mode ----End 4.5.5 External Control Mode This feature needs to be set by the installer.

  • Page 106: Battery Protection Setting

    Energy Storage System iStoragE3 Series 4 APP Operation User Manual Figure4-40 External control mode ----End 4.5.6 Battery Protection Setting Step 1 Select Battery protection. Step 2 Set Grid charge cutoff SOC (%) or Minimum grid discharge SOC (%).

  • Page 107: Zero-Export

    Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-41 Battery protection setting ----End Zero-export 4.5.7 This function is used to enable the zero-export. When the local laws and regulations do not allow discharging for grid, the function can be enabled. When it is set to 0%, that means the discharging for grid is completely prohibited.

  • Page 108: Limit Grid Import

    Energy Storage System iStoragE3 Series 4 APP Operation User Manual Figure4-42 Zero-export function The total power zero-export is off by default. If it needs to be enable, please select Total power zero-export (the total discharge power of three phase to grid should not exceed the set power of grid) according to the provision of local grid.
  • Page 109 Energy Storage System iStoragE3 Series User Manual 4 APP Operation Figure4-43 Limit grid import function ----End...

  • Page 110: Startup And Shutdown

    Energy Storage System iStoragE3 Series 5 Startup and Shutdown User Manual 5 Startup and Shutdown This chapter introduces how to start and shut down the device. 5.1 Startup Step 1 Turn on the external load switch. Step 2 Turn on external grid switch.
  • Page 111 Energy Storage System iStoragE3 Series User Manual 5 Startup and Shutdown − If the PV voltage is less than 200V, check if the grid voltage of L1/L2/L3 is consistent with the power grid on the customer’s site, if yes, press down the POWER button of any battery pack for 1s and then long press the POWER button for 5s to wait for the indicator on the battery pack light on, and then select ON in the inverter page of APP to start the system.

  • Page 112: Cei Self-Check

    Energy Storage System iStoragE3 Series 5 Startup and Shutdown User Manual 5.2 CEI Self-Check iStoragE3 has the CEI self-check function, which is required only in Italy. It is recommended to perform the self-check operation when the grid is normal. The specific operation steps are as follows.

  • Page 113: Shutdown

    Energy Storage System iStoragE3 Series User Manual 5 Startup and Shutdown ----End 5.3 Shutdown Step 1 Power off the inverter on the APP. Step 2 Switch off the external PV switch and grid switch and wait for the inverter indicator off.

  • Page 114: Battery Use Statement

    Energy Storage System iStoragE3 Series 5 Startup and Shutdown User Manual 5.4 Battery Use Statement Battery replacement must be performed in accordance with the following steps: APP operation to turn off the main unit. Turn off the PV switch (it is recommended to do it at night or evening when there is no light) and the AC switch on the input side of the mains.
  • Page 115 Energy Storage System iStoragE3 Series User Manual 5 Startup and Shutdown without the gridwhen the Grid or PV recovers normal, the system triggers the forced charging logic based on the battery pack status to charge the battery pack from grid.
  • Page 116 Energy Storage System iStoragE3 Series 5 Startup and Shutdown User Manual  If the Minimum of discharge SOC is needed to be set to 5%, ensure that there is grid or PV input within 24 hours after the batter SOC reaching its Minimum (to ensure reliable charge for the battery pack and avoid over discharge).

  • Page 117: Maintenance And Troubleshooting

    ----End 6.2 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 118 Energy Storage System iStoragE3 Series 6 Maintenance and Troubleshooting User Manual (charge the battery until the charging power is 0) on the battery at regular intervals (such as two weeks). Disconnect the inverter and battery pack from all power sources before cleaning. Clean the cover and display with a soft cloth.

  • Page 119: Troubleshooting

    Energy Storage System iStoragE3 Series User Manual 6 Maintenance and Troubleshooting 6.3 Troubleshooting iStoragE3 is designed on the basis of the grid-tied operation standards and meets the requirements of safety. Before provided to client, iStoragE3 has been experienced for several rigorous tests to ensure reliable and optimizing operation.
  • Page 120 Energy Storage System iStoragE3 Series 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution voltage is within the permitted operating range of iStorageE3, if so, contact the operator to adjust the protection thresholds, if not, contact the local power company.
  • Page 121 Energy Storage System iStoragE3 Series User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution frequency is within the permissible operating range of iStorageE3, if yes, contact the operator to adjust the protection thresholds, if not, contact the local power company 3.
  • Page 122 Energy Storage System iStoragE3 Series 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution little, check if the load is wired correctly. 2. Restart the inverter to see if the fault still exists. If it still exists, contact service.
  • Page 123 Energy Storage System iStoragE3 Series User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution PV2, PV3 exceed 910V. 2. If the fault persists, try to reduce the number of PV strings 3. If the item 1 is OK, restart the inverter to see if the fault still exists.
  • Page 124 Energy Storage System iStoragE3 Series 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution exists. If it still exists, contact customer service. 1. If the fault is an accidental alarm, it may be a temporary problem with the external power wire, and the system will recover automatically after the fault is removed.
  • Page 125 Energy Storage System iStoragE3 Series User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution 3. After the inverter shutdown and waiting for 30 minutes, then restart it. If the fault still exists, contact service. Restart the inverter to see if the fault still exists.
  • Page 126 Energy Storage System iStoragE3 Series 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution recover. 2. If the alarm persists for more than 2 hours, please try to restart the device, if the alarm still exists after restarting, please contact customer service.
  • Page 127 Energy Storage System iStoragE3 Series User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution Inverter internal PCS communication Restart the inverter to see if the fault still exists. communication line abnormal If it still exists, contact customer service.
  • Page 128 Energy Storage System iStoragE3 Series 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution pole plate for testing, it will cause the arc alarm false alarm. 3. Restart the inverter to see if the fault still exists. If it still exists, contact customer service.
  • Page 129 Energy Storage System iStoragE3 Series User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution 1. Check whether the input voltage of PV1, PV2, PV3 exceed 910V. 2. If the fault persists, try reducing the number of Output over-voltage...
  • Page 130 Energy Storage System iStoragE3 Series 6 Maintenance and Troubleshooting User Manual Check item Fault description Solution problem is not resolved, call for service. Check the fault, if the problem is not resolved, Fan abnormal Fan abnormal call for service. 1. Check if the inner battery pack is abnormal according to related information.
  • Page 131 Energy Storage System iStoragE3 Series User Manual 6 Maintenance and Troubleshooting Check item Fault description Solution 2. Make sure to install the device according to manual and there are no obstructions around device. 3. Wait for 30minutes after the system power off, restart the device, if the problem is not resolved, call for service.

  • Page 132: Package, Transportation, Storage & Recycle

    Energy Storage System iStoragE3 Series 7 Package, Transportation, Storage & Recycle User Manual 7 Package, Transportation, Storage & Recycle 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 133: Recycle

    Energy Storage System iStoragE3 Series User Manual 7 Package, Transportation, Storage & Recycle 2. Battery storage temperature requirement: short-term (with one month) storage in a clean and ventilated room at -20℃~50℃, long-term (within one year) in a clean and ventilated room at 0℃...
  • Page 134 Energy Storage System iStoragE3 Series 7 Package, Transportation, Storage & Recycle User Manual  On-site recycling: The recycling organization recycles lithium batteries on-site, but the price will depend on distance/ transportation costs.  Centralized recycling: Customers can place all recyclable lithium batteries at one location, and the recycling organization will recycle them in bulk.

  • Page 135: Technical Specifications

    Energy Storage System iStoragE3 Series User Manual A Technical Specifications Technical Specifications A.1 Inverter Model iStoragE3 iStoragE3 iStoragE3 iStoragE3 iStoragE3 Item PV input Max. input power (W) 23000 23000 29000 29000 29000 Max. input voltage (V d.c.) 1000 MPPT voltage range (V d.c.) 150~900 Max.
  • Page 136 Energy Storage System iStoragE3 Series A Technical Specifications User Manual Model iStoragE3 iStoragE3 iStoragE3 iStoragE3 iStoragE3 Item Max. continuous input current 15.2 18.3 24.3 (A a.c.) Rated grid frequency (Hz) Grid output Rated output power (W) Max. apparent power (VA) 5.5K...
  • Page 137 Energy Storage System iStoragE3 Series User Manual A Technical Specifications Model iStoragE3 iStoragE3 iStoragE3 iStoragE3 iStoragE3 Item Rated voltage (V a.c.) 380/400, 3W+N+PE Rated output current (A a.c.) 11.6 14.5 17.4 Max. continuous output current 12.8 17.4 (A a.c.) Max. output over current protection (A a.c.)
  • Page 138 Energy Storage System iStoragE3 Series A Technical Specifications User Manual Model iStoragE3 iStoragE3 iStoragE3 iStoragE3 iStoragE3 Item Outdoor product, pollution grade: Ⅲ. The internal pollution grade: Ⅱ (by the protection of IP65, the internal pollution grade Pollution grade decreases) AC: Ⅲ; DC: Ⅱ...

  • Page 139: Battery Pack

    Energy Storage System iStoragE3 Series User Manual A Technical Specifications A.2 Battery Pack Model iStoragEB5-S2 Item Battery input Rated DC Power (W) 4000 Max. input voltage (V d.c.) 1000 Input voltage range (V d.c.) 650~900 Voltage range with full load (V d.c.) 650-800 Max.
  • Page 140 Energy Storage System iStoragE3 Series A Technical Specifications User Manual  Specifications are subject to change without prior notice.

  • Page 141: Acronyms And Abbreviations

    Energy Storage System iStoragE3 Series User Manual B Acronyms and Abbreviations Acronyms and Abbreviations Alternating Current American Wire Gauge Conformite Europeenne Direct Current International Electrotechnical Commission Light-emitting Diode Maximum Power Point Tracking MPPT...
  • Page 142 Energy Storage System iStoragE3 Series B Acronyms and Abbreviations User Manual Protective Earthing Photovoltaic Recommend Standard485 RS485 Total Harmonic Current Distortion THDi...
  • Page 143 4402-04510 007...

This manual is also suitable for:

Istorage3 5kIstorage3 6kIstorage3 8kIstorage3 10kIstorage3 12kIstorage b5-s2

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