HUAWEI LUNA2000 Lithium Battery User Manual

: July 3, 2024
: Huawei

Table of Contents

LUNA2000 Lithium Battery
Product Information
Specifications
Product Usage Instructions
1. Safety Information
2. Product Description
3. Transportation and Storage
4. Installing the ESS
5. Electrical Connections
6. Power-On and Commissioning
- FAQ (Frequently Asked Questions)
Q: What should I do if I encounter a hazard with a high level
Q: How can I access the latest document issue changes?

LUNA2000 Lithium Battery

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Product Information

Specifications

Model: LUNA2000-(7, 14, 21)-S1
Manufacturer: Huawei Digital Power Technologies Co., Ltd.
Energy Storage System (ESS) Components:
- LUNA2000-10KW-C1 Energy Storage Control Unit
- LUNA2000-7-E1 Energy Storage Module
Address: Huawei Digital Power Antuoshan Headquarters, Futian,
Shenzhen 518043, People’s Republic of China
Website: https://e.huawei.com

Product Usage Instructions

1. Safety Information

Follow all safety guidelines provided in the manual to prevent
risks of injury or equipment damage.

2. Product Description

The ESS includes the Energy Storage Control Unit and Energy
Storage Module for efficient energy management.

3. Transportation and Storage

Handle the components with care during transportation and store
them in a dry and secure location to avoid damage.

4. Installing the ESS

Refer to the installation section in the manual for step-by-step
instructions on setting up the ESS components correctly.

5. Electrical Connections

Ensure proper electrical connections as per the guidelines to
maintain system performance and safety.

6. Power-On and Commissioning

Follow the commissioning procedures outlined in the manual after
installation to activate and test the ESS.

FAQ (Frequently Asked Questions)

Q: What should I do if I encounter a hazard with a high level

of risk?

A: If you encounter such a hazard, immediately stop operations
and seek professional assistance to address the situation.

Q: How can I access the latest document issue changes?

A: Refer to the “Change History” section in the manual to find
information on document updates and changes between issues.

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LUNA2000-(7, 14, 21)-S1
User Manual

Issue Date

01 2024-03-27

HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Copyright © Huawei Digital Power Technologies 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 Huawei Digital Power Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are the property of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice The purchased products, services and features are stipulated by the contract made between Huawei Digital Power Technologies Co., Ltd. and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided “AS IS” without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Digital Power Technologies Co., Ltd.

Address:

Huawei Digital Power Antuoshan Headquarters

Futian, Shenzhen 518043

People’s Republic of China

Website:

https://e.huawei.com

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About This Document

Purpose
This document describes the product information, application scenarios, installation, commissioning, maintenance, and technical specifications of the energy storage system (ESS) that consists of the LUNA2000-10KW-C1 Energy Storage Control Unit and the LUNA2000-7-E1 Energy Storage Module.

Intended Audience
This document is intended for:
Sales engineers System engineers Technical support engineers End users

Symbol Conventions

The symbols that may be found in this manual are defined as follows.

Symbol

Description
Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.
Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.
Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.
Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury.

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Symbol

About This Document
Description Supplements the important information in the main text. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

Change History
Changes between document issues are cumulative. The latest document issue contains all the changes made in earlier issues.
Issue 01 (2024-03-27)
This issue is the first official release.

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Contents

About This Document…………………………………………………………………………………………………. ii
1 Safety Information…………………………………………………………………………………………………… 1
1.1 Personal Safety…………………………………………………………………………………………………………………………………………………….2 1.2 Electrical Safety…………………………………………………………………………………………………………………………………………………… 4 1.3 Environment Requirements………………………………………………………………………………………………………………………………. 8 1.4 Mechanical Safety……………………………………………………………………………………………………………………………………………..11 1.5 Battery Safety……………………………………………………………………………………………………………………………………………………. 15
2 Product Description……………………………………………………………………………………………….. 20
2.1 Overview……………………………………………………………………………………………………………………………………………………………. 20 2.2 Appearance……………………………………………………………………………………………………………………………………………………….. 22 2.3 Application Scenarios and Settings…………………………………………………………………………………………………………………25 2.3.1 Networking…………………………………………………………………………………………………………………………………………………….. 25 2.3.2 ESS Working Modes……………………………………………………………………………………………………………………………………….27 2.4 Label Description……………………………………………………………………………………………………………………………………………… 31 2.5 Working Modes………………………………………………………………………………………………………………………………………………… 35
3 Transportation and Storage…………………………………………………………………………………… 36
3.1 Transportation Requirements…………………………………………………………………………………………………………………………. 36 3.2 Storage Requirements……………………………………………………………………………………………………………………………………… 39 3.3 Battery Charge………………………………………………………………………………………………………………………………………………….. 40
4 Installing the ESS…………………………………………………………………………………………………… 44
4.1 Pre-installation Check……………………………………………………………………………………………………………………………………… 45 4.2 Tools…………………………………………………………………………………………………………………………………………………………………… 46 4.3 Moving an Energy Storage Module……………………………………………………………………………………………………………….. 48 4.4 Installation Requirements……………………………………………………………………………………………………………………………….. 48 4.5 Installing the ESS……………………………………………………………………………………………………………………………………………… 49 4.5.1 Floor Mounting……………………………………………………………………………………………………………………………………………… 50 4.5.2 Wall Mounting………………………………………………………………………………………………………………………………………………..52
5 Electrical Connections……………………………………………………………………………………………. 56
5.1 Preparing Cables………………………………………………………………………………………………………………………………………………. 58 5.2 Cable Hole on the Decorative Cover……………………………………………………………………………………………………………… 59 5.3 Installing a PE Cable………………………………………………………………………………………………………………………………………… 59

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Contents

5.4 Installing DC Input Power Cables…………………………………………………………………………………………………………………… 61 5.5 Installing Signal Cables……………………………………………………………………………………………………………………………………. 62 5.6 Installing Decorative Covers……………………………………………………………………………………………………………………………. 65
6 Power-On and Commissioning………………………………………………………………………………. 67
6.1 Check Before Power-On…………………………………………………………………………………………………………………………………… 67 6.2 System Power-On…………………………………………………………………………………………………………………………………………….. 68 6.3 ESS Commissioning (Smart Dongle Networking)……………………………………………………………………………………….. 71 6.3.1 Deploying a New Plant………………………………………………………………………………………………………………………………….71 6.3.2 Setting ESS Parameters………………………………………………………………………………………………………………………………… 72 6.3.3 Querying the ESS Status………………………………………………………………………………………………………………………………. 75 6.3.4 Forced Charge/Discharge……………………………………………………………………………………………………………………………… 76 6.3.5 ESS Upgrade…………………………………………………………………………………………………………………………………………………… 77 6.3.6 Peak Shaving………………………………………………………………………………………………………………………………………………….. 78 6.4 ESS Commissioning (EMMA Networking)……………………………………………………………………………………………………. 79 6.4.1 Deploying a New Plant………………………………………………………………………………………………………………………………….80 6.4.2 Setting ESS Parameters………………………………………………………………………………………………………………………………… 81 6.4.3 Querying the ESS Status………………………………………………………………………………………………………………………………. 85 6.4.4 Forced Charge/Discharge……………………………………………………………………………………………………………………………… 85 6.4.5 ESS Upgrade…………………………………………………………………………………………………………………………………………………… 87 6.4.6 Peak Shaving………………………………………………………………………………………………………………………………………………….. 88
7 ESS Maintenance……………………………………………………………………………………………………. 90
7.1 System Power-Off…………………………………………………………………………………………………………………………………………….. 91 7.2 Routine Maintenance………………………………………………………………………………………………………………………………………. 91 7.3 Troubleshooting………………………………………………………………………………………………………………………………………………… 92 7.4 ESS Replacement-1………………………………………………………………………………………………………………………………………… 105 7.5 Charge Requirements for Batteries in Low SOC………………………………………………………………………………………… 110 7.6 Battery Health Check…………………………………………………………………………………………………………………………………….. 111
8 Emergency Handling……………………………………………………………………………………………. 114
9 Technical Specifications………………………………………………………………………………………..119
A Connecting the Inverter on the App…………………………………………………………………… 121
B Connecting the EMMA on the App……………………………………………………………………… 125
C Preconfigured Certificate Disclaimer………………………………………………………………….. 129
D Acronyms and Abbreviations………………………………………………………………………………. 130

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1 Safety Information

Statement

Before transporting, storing, installing, operating, using, and/or maintaining the equipment, read this document, strictly follow the instructions provided herein, and follow all the safety instructions on the equipment and in this document. In this document, “equipment” refers to the products, software, components, spare parts, and/or services related to this document; “the Company” refers to the manufacturer (producer), seller, and/or service provider of the equipment; “you” refers to the entity that transports, stores, installs, operates, uses, and/or maintains the equipment.
The Danger, Warning, Caution, and Notice statements described in this document do not cover all the safety precautions. You also need to comply with relevant international, national, or regional standards and industry practices. The Company shall not be liable for any consequences that may arise due to violations of safety requirements or safety standards concerning the design, production, and usage of the equipment.
The equipment shall be used in an environment that meets the design specifications. Otherwise, the equipment may be faulty, malfunctioning, or damaged, which is not covered under the warranty. The Company shall not be liable for any property loss, personal injury, or even death caused thereby.
Comply with applicable laws, regulations, standards, and specifications during transportation, storage, installation, operation, use, and maintenance.
Do not perform reverse engineering, decompilation, disassembly, adaptation, implantation, or other derivative operations on the equipment software. Do not study the internal implementation logic of the equipment, obtain the source code of the equipment software, violate intellectual property rights, or disclose any of the performance test results of the equipment software.
The Company shall not be liable for any of the following circumstances or their consequences:
The equipment is damaged due to force majeure such as earthquakes, floods, volcanic eruptions, debris flows, lightning strikes, fires, wars, armed conflicts, typhoons, hurricanes, tornadoes, and other extreme weather conditions.
The equipment is operated beyond the conditions specified in this document.

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The equipment is installed or used in environments that do not comply with international, national, or regional standards.
The equipment is installed or used by unqualified personnel.
You fail to follow the operation instructions and safety precautions on the product and in the document.
You remove or modify the product or modify the software code without authorization.
You or a third party authorized by you cause the equipment damage during transportation.
The equipment is damaged due to storage conditions that do not meet the requirements specified in the product document.
You fail to prepare materials and tools that comply with local laws, regulations, and related standards.
The equipment is damaged due to your or a third party’s negligence, intentional breach, gross negligence, or improper operations, or other reasons not related to the Company.

1.1 Personal Safety

DANGER
Ensure that power is off during installation. Do not install or remove a cable with power on. Transient contact between the core of the cable and the conductor will cause electric arcs, sparks, fire, or explosion, which may result in personal injury.

DANGER
Non-standard and improper operations on the energized equipment may cause fire, electric shocks, or explosion, resulting in property damage, personal injury, or even death.

DANGER
Before operations, remove conductive objects such as watches, bracelets, bangles, rings, and necklaces to prevent electric shocks.

DANGER
During operations, use dedicated insulated tools to prevent electric shocks or short circuits. The dielectric withstanding voltage level must comply with local laws, regulations, standards, and specifications.

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DANGER
During operations, wear personal protective equipment such as protective clothing, insulated shoes, goggles, safety helmets, and insulated gloves.

Figure 1-1 Personal protective equipment

General Requirements
Do not stop protective devices. Pay attention to the warnings, cautions, and related precautionary measures in this document and on the equipment.
If there is a likelihood of personal injury or equipment damage during operations, immediately stop, report the case to the supervisor, and take feasible protective measures.
Do not power on the equipment before it is installed or confirmed by professionals.
Do not touch the power supply equipment directly or with conductors such as damp objects. Before touching any conductor surface or terminal, measure the voltage at the contact point to ensure that there is no risk of electric shock.
Do not touch operating equipment because the enclosure is hot.
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.

Personnel Requirements
Only professionals and trained personnel are allowed to operate the equipment.
Professionals: personnel who are familiar with the working principles and structure of the equipment, trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation, operation, maintenance
Trained personnel: personnel who are trained in technology and safety, have required experience, are aware of possible hazards on themselves in

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certain operations, and are able to take protective measures to minimize the hazards on themselves and other people
Personnel who plan to install or maintain the equipment must receive adequate training, be able to correctly perform all operations, and understand all necessary safety precautions and local relevant standards.
Only qualified professionals or trained personnel are allowed to install, operate, and maintain the equipment.
Only qualified professionals are allowed to remove safety facilities and inspect the equipment.
Personnel who will perform special tasks such as electrical operations, working at heights, and operations of special equipment must possess the required local qualifications.
Only authorized professionals are allowed to replace the equipment or components (including software).
Only personnel who need to work on the equipment are allowed to access the equipment.

1.2 Electrical Safety

DANGER
Before connecting cables, ensure that the equipment is intact. Otherwise, electric shocks or fire may occur.

DANGER Non-standard and improper operations may result in fire or electric shocks.

DANGER
Prevent foreign matter from entering the equipment during operations. Otherwise, equipment damage, load power derating, power failure, or personal injury may occur.

WARNING
For the equipment that needs to be grounded, install the ground cable first when installing the equipment and remove the ground cable last when removing the equipment.

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General Requirements
Follow the procedures described in the document for installation, operation, and maintenance. Do not reconstruct or alter the equipment, add components, or change the installation sequence without permission.
Obtain approval from the national or local electric utility company before connecting the equipment to the grid.
Observe the power plant safety regulations, such as the operation and work ticket mechanisms.
Install temporary fences or warning ropes and hang “No Entry” signs around the operation area to keep unauthorized personnel away from the area.
Before installing or removing power cables, turn off the switches of the equipment and its upstream and downstream switches.
If any liquid is detected inside the equipment, disconnect the power supply immediately and do not use the equipment.
Before performing operations on the equipment, check that all tools meet the requirements and record the tools. After the operations are complete, collect all of the tools to prevent them from being left inside the equipment.
Before installing power cables, check that cable labels are correct and cable terminals are insulated.
When installing the equipment, use a torque tool of a proper measurement range to tighten the screws. When using a wrench to tighten the screws, ensure that the wrench does not tilt and the torque error does not exceed 10% of the specified value.
Ensure that bolts are tightened with a torque tool and marked in red and blue after double-check. Installation personnel mark tightened bolts in blue. Quality inspection personnel confirm that the bolts are tightened and then mark them in red. (The marks must cross the edges of the bolts.)

After the installation is complete, ensure that protective cases, insulation tubes, and other necessary items for all electrical components are in position to avoid electric shocks.
If the equipment has multiple inputs, disconnect all the inputs before operating the equipment.
Before maintaining a downstream electrical or power distribution device, turn off the output switch on the power supply equipment.
During equipment maintenance, attach “Do not switch on” labels near the upstream and downstream switches or circuit breakers as well as warning signs to prevent accidental connection. The equipment can be powered on only after troubleshooting is complete.
If fault diagnosis and troubleshooting need to be performed after power-off, take the following safety measures: Disconnect the power supply. Check whether the equipment is live. Install a ground cable. Hang warning signs and set up fences.
Do not open equipment panels.

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Check equipment connections periodically, ensuring that all screws are securely tightened.
Only qualified professionals can replace a damaged cable.
Do not scrawl, damage, or block any labels or nameplates on the equipment. Promptly replace labels that have worn out.
Do not use solvents such as water, alcohol, or oil to clean electrical components inside or outside of the equipment.

Grounding

Ensure that the grounding impedance of the equipment complies with local electrical standards.
Ensure that the equipment is connected permanently to the protective ground. Before operating the equipment, check its electrical connection to ensure that it is reliably grounded.
Do not work on the equipment in the absence of a properly installed ground conductor.
Do not damage the ground conductor.
For the equipment that uses a three-pin socket, ensure that the ground terminal in the socket is connected to the protective ground point.
If high touch current may occur on the equipment, ground the protective ground terminal on the equipment enclosure before connecting the power supply; otherwise, electric shock as a result of touch current may occur.

Cabling Requirements
When selecting, installing, and routing cables, follow local safety regulations and rules.
When routing power cables, ensure that there is no coiling or twisting. Do not join or weld power cables. If necessary, use a longer cable.
Ensure that all cables are properly connected and insulated, and meet specifications.
Ensure that the slots and holes for routing cables are free from sharp edges, and that the positions where cables are routed through pipes or cable holes are equipped with cushion materials to prevent the cables from being damaged by sharp edges or burrs.
Ensure that cables of the same type are bound together neatly and straight and that the cable sheath is intact. When routing cables of different types, ensure that they are away from each other without entanglement and overlapping.
When cable connection is completed or paused for a short period of time, seal the cable holes with sealing putty immediately to prevent small animals or moisture from entering.
Secure buried cables using cable supports and cable clips. Ensure that the cables in the backfill area are in close contact with the ground to prevent cable deformation or damage during backfilling.
If the external conditions (such as the cable layout or ambient temperature) change, verify the cable usage in accordance with the IEC-60364-5-52 or local laws and regulations. For example, check that the current-carrying capacity meets requirements.

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When routing cables, reserve at least 30 mm clearance between the cables and heat-generating components or areas. This prevents deterioration or damage to the cable insulation layer.
When the temperature is low, violent impact or vibration may damage the plastic cable sheathing. To ensure safety, comply with the following requirements:
Cables can be laid or installed only when the temperature is higher than 0°C. Handle cables with caution, especially at a low temperature.
Cables stored at below 0°C must be stored at room temperature for more than 24 hours before they are laid out.
Do not perform any improper operations, for example, dropping cables directly from a vehicle. Otherwise, the cable performance may deteriorate due to cable damage, which affects the current-carrying capacity and temperature rise.

ESD

NOTICE
The static electricity generated by human bodies may damage the electrostaticsensitive components on boards, for example, the large-scale integrated (LSI) circuits.
When touching the equipment and handling boards, modules with exposed circuit boards, or application-specific integrated circuits (ASICs), observe ESD protection regulations and wear ESD clothing and ESD gloves or a wellgrounded ESD wrist strap.
Figure 1-2 Wearing an ESD wrist strap

When holding a board or a module with exposed circuit boards, hold its edge without touching any components. Do not touch the components with bare hands.

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Package boards or modules with ESD packaging materials before storing or transporting them.

1.3 Environment Requirements

DANGER
Do not expose the equipment to flammable or explosive gas or smoke. Do not perform any operation on the equipment in such environments.

DANGER Do not store any flammable or explosive materials in the equipment area.

DANGER
Do not place the equipment near heat sources or fire sources, such as smoke, candles, heaters, or other heating devices. Overheat may damage the equipment or cause a fire.

WARNING
Install the equipment in an area far away from liquids. Do not install it under areas prone to condensation, such as under water pipes and air exhaust vents, or areas prone to water leakage, such as air conditioner vents, ventilation vents, or feeder windows of the equipment room. Ensure that no liquid enters the equipment to prevent faults or short circuits.

WARNING
To prevent damage or fire due to high temperature, ensure that the ventilation vents or heat dissipation systems are not obstructed or covered by other objects while the equipment is running.

General Requirements
The installation and usage environment must meet relevant international, national, and local standards for lithium batteries, and are in accordance with the local laws and regulations. The user is obliged to protect the ESS against fire or other hazards.
Keep the ESS out of the reach of children and away from daily working or living areas, including but not limited to the following areas: studio, bedroom, lounge, living room, music room, kitchen, study, game room, home theater, sunroom, toilet, bathroom, laundry, and attic.

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When installing the ESS in a garage, keep it clear of the drive path. It is recommended that the ESS be mounted on the wall higher than the bumper to prevent collision.
Do not install the ESS in places that are enclosed, unventilated, without proper fire fighting facilities, or difficult for firefighters to access. Do not place flammable or explosive materials around the ESS. It is recommended that the ESS be mounted on a wall to avoid contact with water.
Install the ESS in a sheltered place or install an awning over it to avoid direct sunlight or rain.
For areas prone to natural disasters such as floods, debris flows, earthquakes, and typhoons, take corresponding precautions for installation.
Do not install the ESS in an easily accessible position because the temperature of the enclosure and heat sink is high when the ESS is running.
Do not install the ESS on a moving object, such as ship, train, or car.
Ensure that the equipment is stored in a clean, dry, and well ventilated area with proper temperature and humidity and is protected from dust and condensation.
Keep the installation and operating environments of the equipment within the allowed ranges. Otherwise, its performance and safety will be compromised.
Do not install, use, or operate outdoor equipment and cables (including but not limited to moving equipment, operating equipment and cables, inserting connectors to or removing connectors from signal ports connected to outdoor facilities, working at heights, performing outdoor installation, and opening doors) in harsh weather conditions such as lightning, rain, snow, and level 6 or stronger wind.
Do not install the equipment in an environment with direct sunlight, dust, smoke, volatile or corrosive gases, infrared and other radiations, organic solvents, or salty air.
Do not install the equipment in an environment with conductive metal or magnetic dust.
Do not install the equipment in an area conducive to the growth of microorganisms such as fungus or mildew.
Do not install the equipment in an area with strong vibration, noise, or electromagnetic interference.
Ensure that the site complies with local laws, regulations, and related standards.
Ensure that the ground in the installation environment is solid, free from spongy or soft soil, and not prone to subsidence. The site must not be located in a low-lying land prone to water or snow accumulation, and the horizontal level of the site must be above the highest water level of that area in history.
Do not install the equipment in a position that may be submerged in water.
If the equipment is installed in a place with abundant vegetation, in addition to routine weeding, harden the ground underneath the equipment using cement or gravel.
Do not install the equipment outdoors in salt-affected areas because it may be corroded. A salt-affected area refers to the region within 500 m of the coast or prone to sea breeze. Regions prone to sea breeze vary with weather

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conditions (such as typhoons and monsoons) or terrains (such as dams and hills).
Before installation, operation, and maintenance, clean up any water, ice, snow, or other foreign objects on the top of the equipment.
When installing the equipment, ensure that the installation surface is solid enough to bear the weight of the equipment.
After installing the equipment, remove the packing materials such as cartons, foam, plastics, and cable ties from the equipment area.

Figure 1-3 Installation environment

NOTE
The operation and service life of the battery depend on the operating temperature. Install the battery at a temperature equal to the ambient temperature or in a better environment.
The operating temperature of the LUNA2000 ranges from 20°C to +55°C. If the LUNA2000 is installed in a cold environment, the built-in thermal control system starts to heat the battery to achieve better performance. The heating process consumes rechargeable power, which reduces the system energy efficiency in cold weather.

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1.4 Mechanical Safety
DANGER
When working at heights, wear a safety helmet and safety harness or waist belt and fasten it to a solid structure. Do not mount it on an insecure moveable object or metal object with sharp edges. Make sure that the hooks will not slide off.
WARNING
Ensure that all necessary tools are ready and inspected by a professional organization. Do not use tools that have signs of scratches or fail to pass the inspection or whose inspection validity period has expired. Ensure that the tools are secure and not overloaded.
WARNING
Do not drill holes into the equipment. Doing so may affect the sealing performance and electromagnetic containment of the equipment and damage components or cables inside. Metal shavings from drilling may short-circuit boards inside the equipment.
General Requirements
Repaint any paint scratches caused during equipment transportation or installation in a timely manner. Equipment with scratches must not be exposed for an extended period of time.
Do not perform operations such as arc welding and cutting on the equipment without evaluation by the Company.
Do not install other devices on the top of the equipment without evaluation by the Company.
When performing operations over the top of the equipment, take measures to protect the equipment against damage.
Use correct tools and operate them in the correct way.
Moving Heavy Objects
Be cautious to prevent injury when moving heavy objects.

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If multiple persons need to move a heavy object together, determine the manpower and work division with consideration of height and other conditions to ensure that the weight is equally distributed.
If two persons or more move a heavy object together, ensure that the object is lifted and landed simultaneously and moved at a uniform pace under the supervision of one person.
Wear personal protective gears such as protective gloves and shoes when manually moving the equipment.
To move an object by hand, approach to the object, squat down, and then lift the object gently and stably by the force of the legs instead of your back. Do not lift it suddenly or turn your body around.
Do not quickly lift a heavy object above your waist. Place the object on a workbench that is half-waist high or any other appropriate place, adjust the positions of your palms, and then lift it.
Move a heavy object stably with balanced force at an even and low speed. Put down the object stably and slowly to prevent any collision or drop from scratching the surface of the equipment or damaging the components and cables.
When moving a heavy object, be aware of the workbench, slope, staircase, and slippery places. When moving a heavy object through a door, ensure that the door is wide enough to move the object and avoid bumping or injury.
When transferring a heavy object, move your feet instead of turning your waist around. When lifting and transferring a heavy object, ensure that your feet point to the target direction of movement.
When transporting the equipment using a pallet truck or forklift, ensure that the tynes are properly positioned so that the equipment does not topple. Before moving the equipment, secure it to the pallet truck or forklift using ropes. When moving the equipment, assign dedicated personnel to take care of it.
Choose sea or roads in good conditions for transportation. Do not transport the equipment by railway or air. Avoid tilt or jolt during transportation.

Working at Heights
Any operations performed 2 m or higher above the ground shall be supervised properly.
Only trained and qualified personnel are allowed to work at heights.
Do not work at heights when steel pipes are wet or other risky situations exist. After the preceding conditions no longer exist, the safety owner and relevant technical personnel need to check the involved equipment. Operators can begin working only after safety is confirmed.
Set a restricted area and prominent signs for working at heights to warn away irrelevant personnel.
Set guard rails and warning signs at the edges and openings of the area involving working at heights to prevent falls.
Do not pile up scaffolding, springboards, or other objects on the ground under the area involving working at heights. Do not allow people to stay or pass under the area involving working at heights.

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Carry operation machines and tools properly to prevent equipment damage or personal injury caused by falling objects.
Personnel involving working at heights are not allowed to throw objects from the height to the ground, or vice versa. Objects shall be transported by slings, hanging baskets, aerial work platforms, or cranes.
Do not perform operations on the upper and lower layers at the same time. If unavoidable, install a dedicated protective shelter between the upper and lower layers or take other protective measures. Do not pile up tools or materials on the upper layer.
Dismantle the scaffolding from top down after finishing the job. Do not dismantle the upper and lower layers at the same time. When removing a part, ensure that other parts will not collapse.
Ensure that personnel working at heights strictly comply with the safety regulations. The Company is not responsible for any accident caused by violation of the safety regulations on working at heights.
Behave cautiously when working at heights. Do not rest at heights.

Using Ladders

Use wooden or insulated ladders when you need to perform live-line working at heights.
Platform ladders with protective rails are preferred. Single ladders are not recommended.
Before using a ladder, check that it is intact and confirm its load bearing capacity. Do not overload it.
Ensure that the ladder is securely positioned and held firm.

When climbing up the ladder, keep your body stable and your center of gravity between the side rails, and do not overreach to the sides.
When a step ladder is used, ensure that the pull ropes are secured.
If a single ladder is used, the recommended angle for the ladder against the floor is 75 degrees, as shown in the following figure. A square can be used to measure the angle.

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1 Safety Information

If a single ladder is used, ensure that the wider end of the ladder is at the bottom, and take protective measures to prevent the ladder from sliding.
If a single ladder is used, do not climb higher than the fourth rung of the ladder from the top.
If you use a single ladder to climb up to a platform, ensure that the ladder is at least 1 m higher than the platform.

Drilling Holes

Obtain consent from the customer and contractor before drilling holes.
Wear protective equipment such as safety goggles and protective gloves when drilling holes.
To avoid short circuits or other risks, do not drill holes into buried pipes or cables.
When drilling holes, protect the equipment from shavings. After drilling, clean up any shavings.

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1.5 Battery Safety
DANGER
Do not connect the positive and negative poles of a battery together. Otherwise, the battery may be short-circuited. Battery short circuits can generate high instantaneous current and releases a large amount of energy, which may cause battery leakage, smoke, flammable gas release, thermal runaway, fire, or explosion. To avoid battery short circuits, do not maintain batteries with power on.

DANGER
Do not expose batteries at high temperatures or around heat sources, such as scorching sunlight, fire sources, transformers, and heaters. Battery overheating may cause leakage, smoke, flammable gas release, thermal runaway, fire, or explosion.

DANGER
Protect batteries from mechanical vibration, falling, collision, punctures, and strong impact. Otherwise, the batteries may be damaged or catch fire.

DANGER
To avoid leakage, smoke, flammable gas release, thermal runaway, fire, or explosion, do not disassemble, alter, or damage batteries, for example, insert foreign objects into batteries, squeeze batteries, or immerse batteries in water or other liquids.

DANGER
Do not touch battery terminals with other metal objects, which may cause heat or electrolyte leakage.

DANGER
There is a risk of fire or explosion if the model of the battery in use or used for replacement is incorrect. Use a battery of the model recommended by the manufacturer.

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DANGER
Battery electrolyte is toxic and volatile. Do not get contact with leaked liquids or inhale gases in the case of battery leakage or odor. In such cases, stay away from the battery and contact professionals immediately. Professionals must wear safety goggles, rubber gloves, gas masks, and protective clothing, power off the equipment, remove the battery, and contact technical engineers.

DANGER
A battery is an enclosed system and will not release any gases under normal operations. If a battery is improperly treated, for example, burnt, needle- pricked, squeezed, struck by lightning, overcharged, or subject to other adverse conditions that may cause battery thermal runaway, the battery may be damaged or an abnormal chemical reaction may occur inside the battery, resulting in electrolyte leakage or production of gases such as CO and H2. To prevent fire or device corrosion, ensure that flammable gas is properly exhausted.

DANGER
The gas generated by a burning battery may irritate your eyes, skin, and throat. Take protective measures promptly.

WARNING
Install batteries in a dry area. Do not install them under areas prone to water leakage, such as air conditioner vents, ventilation vents, feeder windows of the equipment room, or water pipes. Ensure that no liquid enters the equipment to prevent faults or short circuits.

WARNING
Before unpacking, storage, and transportation, ensure that the packing cases are intact and the batteries are correctly placed according to the labels on the packing cases. Do not place a battery upside down or vertically, lay it on one side, or tilt it. Stack the batteries according to the stacking requirements on the packing cases. Ensure that the batteries do not fall or get damaged. Otherwise, they will need to be scrapped.

WARNING
After unpacking batteries, place them in the required direction. Do not place a battery upside down or vertically, lay it on one side, tilt it, or stack it. Ensure that the batteries do not fall or get damaged. Otherwise, they will need to be scrapped.

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WARNING
Tighten the screws on copper bars or cables to the torque specified in this document. Periodically confirm whether the screws are tightened, check for rust, corrosion, or other foreign objects, and clean them up if any. Loose screw connections will result in excessive voltage drops and batteries may catch fire when the current is high.

WARNING
After batteries are discharged, charge them in time to avoid damage due to overdischarge.

Statement

The Company shall not be liable for any battery damage, personal injury, death, property loss, and/or other consequences caused by the following reasons:
Force majeure such as earthquakes, floods, volcanic eruptions, debris flows, lightning strikes, fires, wars, armed conflicts, typhoons, hurricanes, tornadoes, and other extreme weather conditions
The battery warranty period has expired. You are advised not to use a battery whose warranty period has expired, as this poses safety risks.
Actions that do not follow instructions in the user manual or direct advice from the Company, including but not limited to the following scenarios:
The onsite equipment operating environment or external power parameters do not meet the environment requirements for normal operation, for example, the actual operating temperature of batteries is too high or too low, or the power grid is unstable and experiences outages frequently.
Batteries are dropped or incorrectly operated or connected.
Batteries are overdischarged due to delayed acceptance or power-on after battery installation.
Battery running parameters are incorrectly set.
Different types of batteries, for example, batteries of different brands or rated capacities, or old and new batteries, are used together without prior approval from the Company.
Different types of batteries, for example, batteries of different brands or rated capacities, are used together without prior approval from the Company.
Batteries are frequently overdischarged due to improper battery maintenance.
Battery use scenarios are changed without prior approval from the Company.
Battery maintenance is not performed according to the instructions in the user manual, for example, failing to check battery terminals regularly.

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Batteries are not transported, stored, or charged according to the instructions in the user manual.
Instructions from the Company are not followed during battery relocation or reinstallation.
The battery warranty period has expired. You are advised not to use a battery whose warranty period has expired, as this poses safety risks.

General Requirements

NOTICE
To ensure battery safety and battery management accuracy, use batteries provided by the Company. The Company is not responsible for any faults of batteries not provided by it.

Before installing, operating, and maintaining batteries, read the battery manufacturer’s instructions and comply with their requirements. The safety precautions specified in this document are highly important and require special attention. For additional safety precautions, see the instructions provided by the battery manufacturer.
Use batteries within the specified temperature range. When the ambient temperature of the batteries is lower than the allowed range, do not charge the batteries to prevent internal short circuits caused during low-temperature charging.
Before unpacking batteries, check whether the packaging is intact. Do not use batteries with damaged packaging. If any damage is found, notify the carrier and manufacturer immediately.
Power on batteries within 24 hours after unpacking. If the batteries cannot be powered on in time, put them in the original packaging and place them in a dry indoor environment without corrosive gases. During later maintenance, ensure that the power-off time does not exceed 24 hours.
Do not use a damaged battery (such as damage caused when a battery is dropped, bumped, bulged, or dented on the enclosure), because the damage may cause electrolyte leakage or flammable gas release. In the case of electrolyte leakage or structural deformation, contact the installer or professional O&M personnel immediately to remove or replace the battery. Do not store the damaged battery near other devices or flammable materials and keep it away from non-professionals.
Before working on a battery, ensure that there is no irritant or scorched smell around the battery.
When installing batteries, do not place installation tools, metal parts, or sundries on the batteries. After the installation is complete, clean up the objects on the batteries and the surrounding area.
If batteries are exposed to water accidentally, do not install them. Instead, transport the batteries to a safe isolation point and dispose of them in a timely manner.
Before installing a battery pack, check that its enclosure is not deformed or damaged.

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Check whether the positive and negative battery terminals are grounded unexpectedly. If so, disconnect the battery terminals from the ground.
Do not perform welding or grinding work around batteries to prevent fire caused by electric sparks or arcs.
If batteries are left unused for a long period of time, store and charge them according to the battery requirements.
Do not charge or discharge batteries by using a device that does not comply with local laws and regulations.
Keep the battery loop disconnected during installation and maintenance.
Monitor damaged batteries during storage for signs of smoke, flame, electrolyte leakage, or heat.
If a battery is faulty, its surface temperature may be high. Do not touch the battery to avoid scalds.
Do not stand on, lean on, or sit on the top of the equipment.
In backup power scenarios, do not use the batteries for the following situations:
Medical devices substantially important to human life
Control equipment such as trains and elevators, as this may cause personal injury
Computer systems of social and public importance
Locations near medical devices
Other devices similar to those described above

Short-Circuit Protection
When installing and maintaining batteries, wrap the exposed cable terminals on the batteries with insulation tape.
Avoid foreign objects (such as conductive objects, screws, and liquids) from entering a battery, as this may cause short circuits.

Recycling

Dispose of waste batteries in accordance with local laws and regulations. Do not dispose of batteries as household waste. Improper disposal of batteries may result in environmental pollution or an explosion.
If a battery leaks or is damaged, contact technical support or a battery recycling company for disposal.
If batteries are out of service life, contact a battery recycling company for disposal.
Do not expose waste batteries to high temperatures or direct sunlight.
Do not place waste batteries in environments with high humidity or corrosive substances.
Do not use faulty batteries. Contact a battery recycling company to scrap them as soon as possible to avoid environmental pollution.

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2 Product Description

2.1 Overview

Functions

The LUNA2000 ESS consists of an Energy Storage Control Unit and Energy Storage Modules (also referred to as battery expansion modules or battery packs). It stores and releases electricity as required by a PV system, enabling charge and discharge management of a residential PV+ESS system. The Energy Storage Control Unit connects to the energy storage terminals (BAT+ and BAT) of an inverter. The input and output ports of the ESS are high-voltage DC ports.
ESS charge: When the PV energy is sufficient for loads, the ESS stores the surplus PV energy from the inverter.
ESS discharge: When the PV energy is insufficient, the ESS supplies power to loads through the inverter.

Model Description
The model of the LUNA2000 ESS is LUNA2000-7/14/21-S1.

Figure 2-1 Model number

Table 2-1 Model description

No.

Meaning

Description

1

Product

LUNA2000: residential energy storage system

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No.

Meaning

Description

2

Energy level An Energy Storage Module has a capacity of 6.9 kWh.

The ESS supports capacity expansion with a

maximum of three Energy Storage Modules. The ESS

offers the following energy levels:

7: 6.9 kWh

14: 13.8 kWh

21: 20.7 kWh

3

Design code S1: product series of the ESS

The model of the Energy Storage Control Unit in the LUNA2000 ESS is LUNA2000-10KW-C1.
Figure 2-2 Model number

Table 2-2 Model description

No.

Meaning

1

Product

2

Power level

3

Design code

Description
LUNA2000: residential energy storage system
10KW: The power level is 10.5 kW.
C1: product series of the Energy Storage Control Unit

The model of the Energy Storage Module in the LUNA2000 ESS is LUNA2000-7-E1.
Figure 2-3 Model number

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Table 2-3 Model description

No.

Meaning

1

Product

2

Energy level

3

Design code

2 Product Description
Description LUNA2000: residential energy storage system 7: The capacity of an Energy Storage Module is 6.9 kWh. E1: product series of the Energy Storage Module

Battery Capacity Description
The ESS supports capacity expansion with a maximum of three Energy Storage Modules. An Energy Storage Module has a capacity of 6.9 kWh.
Figure 2-4 Capacity expansion with Energy Storage Modules

A maximum of two ESSs can be connected in parallel for capacity expansion. Figure 2-5 Parallel connection

2.2 Appearance
ESS Appearance
This section describes the appearance of the entire ESS.

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Figure 2-6 ESS appearance

2 Product Description

(1) LED indicators (4) Floor-mount base

(2) Energy Storage Control Unit

(3) Energy Storage Modules

Energy Storage Control Unit
The power of the Energy Storage Control Unit is 10.5 kW.

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(1) Ground point
(4) Fuse
(7) DC switch locking screw hole (M4)a

2 Product Description

(2) Energy storage terminals (BAT+/BAT) (5) Black start button
(8) LED indicators

(3) COM port
(6) DC switch (DC SWITCH) (9) Battery cascading port

NOTE Note a: (Optional) Install the locking screw that secures the DC SWITCH to prevent misoperations.
Energy Storage Module
The standard capacity of an Energy Storage Module is 6.9 kWh.

(1) Lifting handle holes (4) Heat sink

(2) Explosion proof valve (3) Lifting handle holes

(5) Battery cascading port (upper)

(6) Battery cascading port (lower)

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2.3 Application Scenarios and Settings

2.3.1 Networking

NOTE

indicates AC power cables, indicates signal cables, and

indicates DC power cables, indicates wireless communication.

When used with the LUNA2000-(7, 14, 21)-S1, the SUN2000-(3KTL-10KTL)-M1 must be upgraded to SUN2000MA V100R001C00SPC157 or later.

Smart Dongle Networking

Figure 2-7 On-grid scenario

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Figure 2-8 On/Off-grid scenario

2 Product Description

NOTE
Note*: When the SUN2000-(3KTL-10KTL)-M1 is used in the on/off-grid scenario, at least two Energy Storage Modules are required to ensure the stability of off-grid power supply to loads.

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EMMA Networking

2 Product Description

2.3.2 ESS Working Modes
The ESS supports three working modes: Maximum self-consumption, TOU, and Fully fed to grid.

Maximum Self-Consumption
This mode applies to areas where the electricity price is high, or areas where the feed-in tariff (FIT) subsidy is low or unavailable.
When the PV energy is sufficient for loads, the ESS stores the surplus PV energy. When the PV energy is insufficient or no PV energy is generated at night, the ESS discharges to supply power to loads. This improves the selfconsumption rate of the PV system as well as energy self-sufficiency rate of the household, reducing electricity fees.
Set the working mode to Maximum self-consumption. For details, see 6.4.2 Setting ESS Parameters.
Example:
System configuration: one 5KTL inverter, equipped with the 21 kWh ESS. The ESS works in the Maximum self-consumption mode.
PV energy usage priority: Powering loads > Charging the ESS > Fed to grid

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Load power supply priority: PV power > ESS discharging > Grid

TOU

This mode applies to scenarios where the price difference is large between peak and off-peak hours. When the electricity price is low during off-peak hours, the grid supplies power to charge the ESS. When the electricity price is high during peak hours, the ESS discharges to supply power to household loads.
In some countries, the grid is not allowed to charge the ESS. In such case, this mode cannot be used.
In this mode, at least one charge time segment or one discharge time segment is required. During the charge time segment, the grid is allowed to charge the ESS. During the discharge time segment, the ESS can supply power to the loads. In other time segments that are not set, the ESS does not discharge, and the PV system and grid supply power to the loads. (In on/offgrid mode, if the grid fails, the ESS can discharge at any time.)
Set the working mode to TOU. For details, see 6.4.2 Setting ESS Parameters.
Example:

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00:0006:00 is the low-price period, and 06:0024:00 is the high-price period. Households usually use electricity in the high-price period.
System configuration: one 5KTL inverter, equipped with the 21 kWh ESS. Set the ESS working mode to TOU.
Set parameters as follows: Set Grid charge cutoff SOC to 50%. Set 00:0006:00 as the charge time segment and 06:0024:00 as the discharge time segment. Set Priority of excess PV energy to Charge.
PV energy usage priority: Powering loads > Charging the ESS > Fed to grid Load power supply priority: PV power > ESS discharging > Grid

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Figure 2-9 Example of TOU (00:0006:00 charging and 6:0024:00 discharging)

Fully Fed to Grid
This mode applies to on-grid scenarios where PV energy is fully fed to the grid.

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2 Product Description

This mode maximizes the PV energy fed to the grid. When the generated PV energy in the daytime is greater than the maximum output capability of the inverter, the ESS is charged to store energy. When the PV energy is less than the maximum output capability of the inverter, the ESS discharges to maximize the energy fed from the inverter to the grid.
Set the working mode to Fully fed to grid. For details, see 6.4.2 Setting ESS Parameters.
For example, when the PV system generates 8 kW of power, the 5KTL inverter feeds the maximum output power of 5.5 kW to the grid and charges the ESS at 2.5 kW. When the solar irradiance decreases, resulting in the PV system generating only 3 kW of power, the ESS discharges power at 2.5 kW to ensure that the inverter continues to feed the maximum output power of 5.5 kW to the grid.

Figure 2-10 Fully fed to grid

2.4 Label Description
Enclosure Labels
Table 2-4 Enclosure label description Label

Name

Meaning

Delayed discharge

High voltage exists after the ESS is powered on. Residual voltage still exists after the ESS is powered off. It takes 5 minutes for the ESS to discharge to the safe voltage.

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Label

Name Burn warning

2 Product Description
Meaning Do not touch the ESS, as the enclosure is hot when the ESS is running.

Operation
Refer to documentation

High voltage exists after the ESS is powered on. Only qualified and trained electrical technicians are allowed to install and operate the ESS.
Ground the ESS before powering it on.
Reminds operators to refer to the documentation provided with the ESS.

Usage prohibited when the ESS is dropped or experiences strong impact
Transportation
Base securing label

Do not use an Energy Storage Module that is dropped or experiences strong impact. Otherwise, safety risks may occur, such as battery cell leakage and electric shock.
The weight of an Energy Storage Module is 68 kg. Use a forklift or assign multiple persons to move an Energy Storage Module. Be cautious to prevent injury when moving heavy objects.
The base shall be secured to the ground using bolts. Otherwise, the equipment may fall down, causing personal injury or equipment damage.

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Label

2 Product Description

Name Fuse replacement

Meaning
The fuse of the Energy Storage Control Unit can be replaced. For details, see the ESS replacement section in the manual.

Warning signs such as those for the installation environment

Keep the ESS away from fire and heat sources and out of reach of children to avoid high voltage hazards.
Store and charge the ESS in strict accordance with the manual to prevent damage caused by storing the ESS in a low state-of-charge (SOC) for extended periods of time.
It is recommended that the ESS be installed outdoors under an awning. When installing the ESS in a garage, keep it clear of the driving path. You are advised to install the ESS higher than the vehicle bumper.

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2 Product Description

Nameplate

NOTE The labels are for reference only.

Figure 2-11 Nameplate of the Energy Storage Control Unit

Figure 2-12 Nameplate of the Energy Storage Module

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2.5 Working Modes
The LUNA2000 converts high-voltage DC power generated by PV strings to lowvoltage DC power and stores the low-voltage DC power in the Energy Storage Module. The LUNA2000 also converts low-voltage DC power from the Energy Storage Module to high-voltage DC power which is then converted to AC power through the inverter.
The LUNA2000 works in hibernation, standby, or operating mode.

Table 2-5 Working modes

Working Mode

Description

Hibernation The ESS’s internal auxiliary power source and the power unit do

mode

not work.

Standby mode

The ESS’s internal auxiliary power source works, but the power unit does not work.

Operating mode

The ESS’s internal auxiliary power source works, and the power unit charges or discharges.

Figure 2-13 Working mode switching

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3 Transportation and Storage
3.1 Transportation Requirements
Be cautious to prevent injury when moving heavy objects.

If multiple persons need to move a heavy object together, determine the manpower and work division with consideration of height and other conditions to ensure that the weight is equally distributed.
If two persons or more move a heavy object together, ensure that the object is lifted and landed simultaneously and moved at a uniform pace under the supervision of one person.
Wear personal protective gears such as protective gloves and shoes when manually moving the equipment.
To move an object by hand, approach to the object, squat down, and then lift the object gently and stably by the force of the legs instead of your back. Do not lift it suddenly or turn your body around.
Do not quickly lift a heavy object above your waist. Place the object on a workbench that is half-waist high or any other appropriate place, adjust the positions of your palms, and then lift it.
Move a heavy object stably with balanced force at an even and low speed. Put down the object stably and slowly to prevent any collision or drop from scratching the surface of the equipment or damaging the components and cables.
When moving a heavy object, be aware of the workbench, slope, staircase, and slippery places. When moving a heavy object through a door, ensure that the door is wide enough to move the object and avoid bumping or injury.

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When transferring a heavy object, move your feet instead of turning your waist around. When lifting and transferring a heavy object, ensure that your feet point to the target direction of movement.
When transporting the equipment using a pallet truck or forklift, ensure that the tynes are properly positioned so that the equipment does not topple. Before moving the equipment, secure it to the pallet truck or forklift using ropes. When moving the equipment, assign dedicated personnel to take care of it.
Choose sea or roads in good conditions for transportation. Do not transport the equipment by railway or air. Avoid tilt or jolt during transportation.

DANGER
Load or unload batteries with caution. Otherwise, the batteries may be shortcircuited or damaged (such as leakage and crack), catch fire, or explode.

WARNING
Do not move a battery by holding its terminals, bolts, or cables. Otherwise, the battery may be damaged. Keep batteries in the correct direction during transportation. They must not be placed upside down or tilted, and must be protected against falling down, mechanical impact, rains, snows, and falling into water during transportation.

WARNING
Before unpacking, storage, and transportation, ensure that the packing cases are intact and the batteries are correctly placed according to the labels on the packing cases. Do not place a battery upside down or vertically, lay it on one side, or tilt it. Stack the batteries according to the stacking requirements on the packing cases. Ensure that the batteries do not fall or get damaged. Otherwise, they will need to be scrapped.

According to the UN Recommendations on the Transport of Dangerous Goods: Model Regulations (also referred to as TDG or UN Orange Book), batteries belong to class 9 dangerous goods and shall pass the related tests required in Part III Subsection 38.3 of the UN Recommendations on the Transport of Dangerous Goods: Manual of Tests and Criteria.
Comply with the latest international and national rules on the transportation and storage of dangerous goods, including but not limited to the International Maritime Dangerous Goods Code (IMDG Code), Agreement concerning the International Carriage of Dangerous Goods by Road (ADR), and China’s transportation industry standards (JT/T 617) Regulations concerning road transportation of dangerous goods, as well as the requirements of the transportation regulatory authorities in the countries of departure, route, and destination. Before transportation and storage, properly pack, label, and mark products according to the local laws, regulations, and standards, and complete related product and packaging tests.

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Transportation and storage service providers must have the qualifications for dangerous goods operations required by local laws, regulations, and standards. Rigid box trucks shall be used for transportation and pickup trucks are prohibited.
Choose sea or roads in good conditions for transportation. Do not transport the equipment by railway or air. Avoid tilt or jolt during transportation.
Before transportation, ensure that the battery packaging, labels, and markings are intact and there is no abnormal smell, leakage, smoke, or fire. Otherwise, the batteries must not be transported.
The packing case must be solid and strong. Handle the packages with care and take moisture-proof measures during loading, transportation, and unloading. Do not place the packages on one side or upside down. Bind the packages securely to avoid displacement. Ensure that the dangerous goods labels are visible.
Exercise caution when moving batteries to prevent bumping and ensure personal safety.
Unless otherwise specified, dangerous goods must not be mixed with goods containing food, medicine, animal feed, or their additives in the same vehicle or container.
If the local laws, regulations, and standards allow the mixed transportation of specified different dangerous goods and that of dangerous goods and common goods, the dangerous goods shall be isolated according to the local laws, regulations, and standards. If there is no specific local requirement, refer to the following requirements for isolation when dangerous goods and common goods are in the same vehicle or container:
Use a spacer that is as high as the packages.
Keep a distance of at least 0.8 m around.
Store batteries in a separate area away from heat sources. Protect batteries from moisture, water, and rain. Stack batteries according to the labels on the packing case. Do not stack batteries more than the allowed stacking layers. Do not place batteries on one side or upside down.
Before transporting a faulty battery (with scorch, leakage, bulge, or water intrusion), insulate its positive and negative terminals, pack it, and place it in an insulated explosion-proof box as soon as possible. Record information such as the site name, address, time, and fault symptom on the box.
When transporting faulty batteries, avoid approaching flammable material storage areas, residential areas, or other densely populated places, such as mass transit facilities or elevators.

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3.2 Storage Requirements
WARNING
Ensure that batteries are stored in a dry, clean, and ventilated indoor environment that is free from sources of strong infrared or other radiations, organic solvents, corrosive gases, and conductive metal dust. Do not expose batteries to direct sunlight or rain and keep them far away from sources of heat and ignition.
If a battery is faulty (with scorch, leakage, bulge, or water intrusion), move it to a dangerous goods warehouse for separate storage. The distance between the battery and any combustible materials must be at least 3 m. The battery must be scrapped as soon as possible.
Place batteries correctly according to the signs on the packing case during storage. Do not place batteries upside down, lay them on one side, or tilt them. Stack batteries in accordance with the stacking requirements on the packing cases.
Store batteries in a separate place. Do not store batteries together with other devices. Do not stack batteries too high. If a large number of batteries are stored onsite, it is recommended that the site be equipped with qualified fire fighting facilities, such as fire sand and fire extinguishers.

CAUTION
It is recommended that batteries be used soon after being deployed onsite. Batteries that have been stored for an extended period shall be charged periodically. Otherwise, they may be damaged.

The storage environment must comply with local regulations and standards.
The storage environment must be clean and dry. The product must be protected against rain and water.
The air must not contain corrosive or flammable gases.
The storage environment requirements are as follows:
Ambient temperature: -1055°C; recommended storage temperature: 20 30°C
Relative humidity: 5% to 80%
If a battery has been stored for longer than the allowed period, it must be checked and tested by professionals before use.
Proof that the product is stored according to the requirements must be available, such as temperature and humidity log data, storage environment photos, and inspection reports.
Ensure that batteries are delivered based on the “first in, first out” rule.
Ensure that the storage duration starts from the latest charge time marked on the battery packing case and that the latest charge time is updated after every charge.

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3.3 Battery Charge

Battery Acceptance Inspection
There must be a battery charge label on the packing case. The charge label must specify the latest charge time and the next charge time.
Battery Charge Requirements
1. AC mains input voltage requirements on the charging facilities: single- phase voltage: 220 V/230 V/240 V, ±10%; three-phase voltage: 380 V/400 V, ±10%.
2. The warehouse keeper shall collect battery storage information every month and periodically report the battery inventory information to the planning department to ensure that batteries are charged in a timely manner.
3. After the battery production test is complete and before the batteries are stored, the batteries must be charged to at least 50% SOC.
Conditions for Determining Long-term Storage
Do not store batteries for extended periods of time. The deep discharge during storage may damage batteries. If you have to store batteries, observe the following storage requirements.

Table 3-1 Lithium battery charge intervals

Required Storage Temperature

Actual Storage Temperature

Charge Interval

10°C < T +55°C

T 10°C

Not allowed

10°C < T +25°C 15 months

25°C < T 35°C 9 months

35°C < T 55°C 6 months

T > 55°C

Not allowed

Remarks
Not reaching the time for charge: Use the batteries as soon as possible. Reaching the time for charge: Charge the batteries.

1. Dispose of deformed, damaged, or leaking batteries directly irrespective of how long they have been stored.
2. The storage duration starts from the latest charge time labeled on the battery package. If a battery is qualified after charge, update the latest charge time and the next charge time (Next charge time = Latest charge time + Charge interval) on the label.
3. Batteries can be charged for a maximum of three times during storage. Dispose of batteries if the maximum charge times are exceeded.
4. Long-term storage of lithium batteries will cause capacity loss. The longer the storage duration, the greater the capacity loss. Batteries may fail the

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discharge acceptance tests when their capacity after storage is less than 100% of the rated capacity.

Inspection Before Charge
1. Before charging a battery, you need to check its appearance. Charge the qualified battery or dispose of the unqualified one.
2. The battery is qualified if it is free from the following symptoms: Deformation Shell damage Leakage

Battery Charging Cable Connection
Connect cables by referring to 5 Electrical Connections.

Figure 3-1 Cable connection diagram

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Charge Procedure

3 Transportation and Storage

NOTICE
Ensure that the charge process is supervised to prevent any abnormality. If a battery experiences an abnormality such as bulging or smoking, stop
charging immediately and dispose of it. Ensure that only trained professionals perform charge operations. If the battery SOC is 0%, the battery cannot be activated by holding down the
black start button. The battery can be started only after both the DC and AC power supplies to the inverter are connected. It is recommended that a battery be charged to 50% SOC. If a lithium battery is stored for extended periods of time, capacity loss may occur. After a lithium battery is stored for 12 months at the recommended storage temperature, the irreversible capacity loss rate is 3%10%.
Step 1 Connect cables correctly.
Step 2 Set the DC SWITCH to ON.
Step 3 Turn on the AC switch between the inverter and the power grid.
Step 4 Observe the LED indicators on the inverter and check that the AC indicator is blinking green slowly.
Step 5 Hold down the black start button for 8s to activate the ESS.
Step 6 Connect the inverter on the app. Tap Monitor on the home screen, tap the ESS icon, and check that all Energy Storage Modules are online.
Step 7 Choose Maintenance > Battery maintenance > Forced charge/discharge, set Working Mode to Maintenance charge, and enable Maintenance charge.
Step 8 Check that the circular SOC indicator stops blinking or the status displayed on the app is Charging completed.
Step 9 After the charging is complete, turn off the AC switch between the inverter and the power grid, and then set the DC SWITCH to OFF. If other ESSs need to be charged, repeat the preceding steps.
—-End

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DANGER
Note the polarities when installing batteries. Do not connect the positive and negative poles of a battery or battery string together. Otherwise, the battery may be short-circuited.

WARNING
Tighten the screws on copper bars or cables to the torque specified in this document. Periodically confirm whether the screws are tightened, check for rust, corrosion, or other foreign objects, and clean them up if any. Loose screw connections will result in excessive voltage drops and batteries may catch fire when the current is high.
When installing batteries, do not place installation tools, metal parts, or sundries on the batteries. After the installation is complete, clean up the objects on the batteries and the surrounding area.

WARNING
Before unpacking, storage, and transportation, ensure that the packing cases are intact and the batteries are correctly placed according to the labels on the packing cases. Do not place a battery upside down or vertically, lay it on one side, or tilt it. Stack the batteries according to the stacking requirements on the packing cases. Ensure that the batteries do not fall or get damaged. Otherwise, they will need to be scrapped.

WARNING
After unpacking batteries, place them in the required direction. Do not place a battery upside down or vertically, lay it on one side, tilt it, or stack it. Ensure that the batteries do not fall or get damaged. Otherwise, they will need to be scrapped.

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CAUTION
Slowly push or move battery packs to prevent damage and collision.
To prevent battery packs from falling off, start the pallet truck or forklift after confirming that battery packs are securely bound.
When moving batteries, do not remove protective components such as protective covers or waterproof caps from battery terminals.
Exercise caution when moving batteries to prevent bumping and ensure personal safety.
Install and secure batteries horizontally from the bottom up and from left to right to prevent falling over due to imbalance.
When connecting batteries, ensure that the spring washer on the screw is leveled, that the protruding part of the terminal on the cable faces outwards, and that the cable is intact.

CAUTION
Install and secure batteries horizontally from the bottom up and from left to right to prevent falling over due to imbalance.
Ensure that the power circuit breaker is OFF before installing batteries. Keep the battery loop disconnected during installation and maintenance.

NOTICE
Do not use a damaged battery (such as damage caused when a battery is dropped, bumped, bulged, or dented on the enclosure), because the damage may cause electrolyte leakage or flammable gas release. In the case of electrolyte leakage or structural deformation, contact the installer or professional O&M personnel immediately to remove or replace the battery. Do not store the damaged battery near other devices or flammable materials and keep it away from non-professionals.
Before installing a battery pack, check that its enclosure is not deformed or damaged.

4.1 Pre-installation Check
Checking Outer Packaging
Before unpacking the ESS, check the outer packaging for damage, such as holes and cracks, and check the ESS model. If any damage is found or the model is not what you requested, do not unpack the ESS and contact your vendor as soon as possible.

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Checking Deliverables
After unpacking the ESS, check that the deliverables are intact and complete, and free from any obvious damage. If any item is missing or damaged, contact your vendor.
NOTE
For details about the number of deliverables, see the Packing List in the packing case.

4.2 Tools

Category
Installation tool

Tool

Hammer drill
Drill bit: 8 mm, 12 mm, and 16 mm

Phillips insulated torque screwdriver

Hex insulated

Insulated

torque screwdriver torque socket

wrench

Hex key

Diagonal pliers

Hydraulic pliers

Wire stripper

Cable tie

Spanner
Model: PV-MS-HZ open-end wrench
Manufacturer: Staubli

Rubber mallet

Utility knife

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Category

Tool

4 Installing the ESS

Cable cutter

Crimping tool
Model: PVCZM-22100/19100
Manufacturer: Staubli

Multimeter
DC voltage measurement range 1100 V DC

Vacuum cleaner

Marker

Steel measuring tape Level –

Cord end terminal crimping tool
–

Personal protective equipment (PPE)

Heat shrink tubing

Heat gun

Insulated gloves

Protective gloves –

Dust mask –

Protective shoes
–

Goggles

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4.3 Moving an Energy Storage Module
WARNING
Be cautious to prevent injury when moving heavy objects. (The weight of an Energy Storage Module is 68 kg.)
Use lifting handles to move an Energy Storage Module. Do not move it directly with your hands.
Ensure that the lifting handles are securely connected to the Energy Storage Module, with the steel washers of the lifting handles closely fitted to the Energy Storage Module. Do not lift the Energy Storage Module before the lifting handles are tightened.
The lifting handles are auxiliary moving tools and not applicable to longdistance transportation.
Do not use a damaged lifting handle. If the stud of a lifting handle is bent, replace the lifting handle promptly.
Figure 4-1 Using lifting handles

4.4 Installation Requirements
Installation Angle Requirements
The ESS can be installed on a floor or wall. The installation angle requirement is as follows: Do not install the ESS at forward tilted, back tilted, side tilted, horizontal, or
upside down positions.

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Figure 4-2 Installation angle

4 Installing the ESS

Installation Position Requirements
Install the ESS on a solid brick-concrete structure or concrete wall or floor. If other types of walls and floors are used, they must be made of fire- retardant materials and meet the load-bearing requirements of the equipment. (The weight of an Energy Storage Module is 68 kg.)
Installation Clearance Requirements
During installation, ensure that there is no other equipment (except related Huawei equipment and awnings) or flammable or explosive materials around the ESS. Reserve sufficient clearances for heat dissipation and safety isolation.
When mounting the ESS on a wall, do not place any objects under the ESS.
Figure 4-3 ESS installation requirements

4.5 Installing the ESS

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4.5.1 Floor Mounting

Floor-mounting Holes
Figure 4-4 shows the dimensions of floor-mounting holes for the ESS.

Figure 4-4 Dimensions for floor mounting

Procedure
DANGER Avoid drilling holes into the water pipes or power cables buried in the wall.

CAUTION
When installing the equipment, ensure that the installation surface is flat and solid enough to bear the weight of the equipment. Do not over-adjust the horizontal adjustment nut of the floor-mounting bracket. Ensure that the horizontal adjustment nut is screwed into more than 1/2 of the thread depth. If the thread depth is too small, the screw thread may be damaged due to excessive force because the Energy Storage Module is heavy.

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NOTICE
To prevent dust inhalation or contact with eyes, wear safety goggles and a dust mask when drilling holes.
Use a vacuum cleaner to clean up dust in and around the holes, and measure the spacing. If the holes are inaccurately positioned, drill the holes again.
NOTE
Expansion bolts are delivered with the product. If the length or number of the bolts do not meet installation requirements, prepare stainless steel expansion bolts by yourself. The expansion bolts delivered with the product are used for solid brick-concrete walls and concrete floors. If other types of walls and floors are used, ensure that the load-bearing capacity requirements (the weight of one Energy Storage Module is 68 kg) are met and appropriate bolts are selected.

NOTICE
Before installing an Energy Storage Module, clean the ports on the base. Ensure that the ports are dry and free from dust and foreign objects. Otherwise, the equipment may be damaged.
Before tightening the screws on both sides of the equipment, ensure that the front panels of the modules are flush with each other.
Step 1 Fold the marking-off template as required and place it 1520 mm away from the wall. Mark the mounting holes on the floor. Then, attach the marking- off template to the wall, mark the mounting holes on the wall, and use a hammer drill to drill holes.
Step 2 Loosen the screws on both sides, separate the floor-mounting bracket from the Energy Storage Control Unit, and remove the floor-mounting bracket.
Step 3 Rotate the leveling adjustment nut, use a level instrument to level the bracket, and secure the bracket using expansion bolts.
Step 4 Install the first Energy Storage Module, move the Energy Storage Module onto the floor-mounting bracket using lifting handles, tighten the screws on both sides, and remove the protective cover from the battery cascading port on the top.
Step 5 Install the second Energy Storage Module and tighten the screws on both sides.
Step 6 Install the third Energy Storage Module, tighten the screws on both sides, and install the L-shaped mounting brackets.
Step 7 Install the Energy Storage Control Unit and tighten the screws on both sides.

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—-End
4.5.2 Wall Mounting
Wall-mounting Holes
Figure 4-5 shows the dimensions of wall mounting holes for the ESS.

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Figure 4-5 Dimensions for wall mounting

4 Installing the ESS

Procedure
DANGER Avoid drilling holes into the water pipes or power cables buried in the wall.

NOTICE
To prevent dust inhalation or contact with eyes, wear safety goggles and a dust mask when drilling holes.
Use a vacuum cleaner to clean up dust in and around the holes, and measure the spacing. If the holes are inaccurately positioned, drill the holes again.

NOTE
Expansion bolts are delivered with the product. If the length or number of the bolts do not meet installation requirements, prepare stainless steel expansion bolts by yourself. The expansion bolts delivered with the product are used for solid brick-concrete walls and concrete floors. If other types of walls and floors are used, ensure that the load-bearing capacity requirements (the weight of one Energy Storage Module is 68 kg) are met and appropriate bolts are selected.

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NOTICE
Before installing an Energy Storage Module, clean the ports on the base. Ensure that the ports are dry and free from dust and foreign objects. Otherwise, the equipment may be damaged.
Before tightening the screws on both sides of the equipment, ensure that the front panels of the modules are flush with each other.
Step 1 Assemble the wall-mounting bracket.
Step 2 Mark the positions for drilling holes using the marking-off template and drill holes using a hammer drill.
Step 3 Install the wall-mounting bracket.
Step 4 Install the panel of the wall-mounting bracket.
Step 5 Install the Energy Storage Modules and the Energy Storage Control Unit in sequence. For details, see the floor mounting section.

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Figure 4-6 Wall mounting

4 Installing the ESS

—-End

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5 Electrical Connections
DANGER Before connecting cables, ensure that the DC SWITCH on the ESS and all switches connected to the ESS are OFF. Otherwise, the high voltage of the ESS may result in electric shocks.
DANGER Note the polarities when installing batteries. Do not connect the positive and negative poles of a battery or battery string together. Otherwise, the battery may be short-circuited.
DANGER Do not smoke or have an open flame around batteries. Wear personal protective equipment and use dedicated insulated tools to avoid
electric shocks or short circuits.
WARNING Equipment damage caused by incorrect cable connections is not covered by the
product warranty. Only qualified electrical technicians are allowed to connect cables. Operation personnel must wear proper PPE when connecting cables.

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WARNING
Tighten the screws on copper bars or cables to the torque specified in this document. Periodically confirm whether the screws are tightened, check for rust, corrosion, or other foreign objects, and clean them up if any. Loose screw connections will result in excessive voltage drops and batteries may catch fire when the current is high.
When installing batteries, do not place installation tools, metal parts, or sundries on the batteries. After the installation is complete, clean up the objects on the batteries and the surrounding area.

CAUTION
Do not connect two or more cables to the positive or negative power port of a battery in parallel.
Stay away from the equipment when preparing cables to prevent cable scraps from entering the equipment. Cable scraps may cause sparks and result in personal injury and equipment damage.
NOTE
The cable colors shown in the electrical connection diagrams provided in this section are for reference only. Select cables in accordance with local cable specifications (green-and-yellow cables are only used for protective earthing).

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5.1 Preparing Cables
Figure 5-1 ESS cable connections

5 Electrical Connections

Table 5-1 Preparing cables No. Cable

Type

Signal cable (between the inverter and an ESS and between ESSs)

Outdoor shielded twisted pair cable (eightcore)

DC input power cable
(between the inverter and an ESS and between ESSs)

Common outdoor PV cable in the industry

Recommended Specifications
Conductor cross-sectional area: 0.201 mm2
Cable outer diameter: 48 mm
Conductor cross-sectional area: 46 mm2
Cable outer diameter: 5.59 mm

Source
Prepared by the customer
Prepared by the customer

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No. Cable
PE cable

5 Electrical Connections

Type
Single-core outdoor copper cable

Recommended Specifications
10 mm2

Source
Prepared by the customer

NOTE The minimum cable cross-sectional area must meet local standards. The factors to be considered in cable selection include the rated current, cable type,
routing mode, ambient temperature, and maximum acceptable line loss. The length of the DC input power cables and signal cables between an ESS and the
inverter must be less than or equal to 20 m.
5.2 Cable Hole on the Decorative Cover
NOTICE The cable hole on the decorative cover is small. Route the cables through the decorative cover before connecting the terminals.

5.3 Installing a PE Cable
Precautions

DANGER Ensure that the PE cable is securely connected. Otherwise, electric shocks may occur.
NOTE It is recommended that silicone grease or paint be applied around the ground terminal after the PE cable is connected.

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Procedure
Step 1 Crimp an OT terminal.

5 Electrical Connections

NOTICE
Avoid scratching the core wire when stripping a cable. The cavity formed after the conductor crimp strip of the OT terminal is crimped
must wrap the core wire completely. The core wire must make close contact with the OT terminal. Wrap the wire crimping area with heat shrink tubing or insulation tape. The heat shrink tubing is used as an example. Use a heat gun carefully to avoid heat damage to the equipment.
Figure 5-2 Crimping an OT terminal

(A) Core wire (D) Heat gun

(B) Insulation layer (E) Hydraulic pliers

(C) Heat shrink tubing

Step 2 Connect the ground point of the Energy Storage Control Unit to the external ground point.

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Figure 5-3 Connecting the PE cable

5 Electrical Connections

NOTE Apply silicone grease or paint around the ground terminal after the PE cable is connected. —-End
5.4 Installing DC Input Power Cables
CAUTION Use the Staubli MC4 positive and negative metal terminals and DC connectors delivered with the product. Using other positive and negative metal terminals and DC connectors may result in serious consequences, such as cable overheating, burning, and module damage. The resulting device damage is not covered by the product warranty.

NOTICE
Keep the DC input BAT+ cable and BAT cable close to each other.
Cables with high rigidity, such as armored cables, are not recommended as DC input power cables, because poor contact may be caused by the bending of the cables.
When installing the DC input power cables, ensure that the axial tension on DC connectors does not exceed 80 N. Radial stress or torque is not allowed on DC connectors.
Before assembling DC connectors, label the cable polarities correctly to ensure correct cable connections.
After crimping the positive and negative metal terminals, pull the DC input power cables back to ensure that they are connected securely.
Insert the crimped metal terminals of the positive and negative power cables into the appropriate positive and negative connectors. Then pull the DC input power cables back to ensure that they are connected securely.
Connect the DC input power cables to the BAT+ and BAT terminals of the ESS and the inverter, respectively.

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Figure 5-4 Connecting DC input power cables

5 Electrical Connections

In a parallel system, connect DC power cables between the ESSs by referring to cable connections between the inverter and an ESS.
5.5 Installing Signal Cables
NOTICE When laying out signal cables, separate them from power cables and keep them away from strong interference sources to prevent communication interruption.
Signal Port Definition
Figure 5-5 Signal port

Table 5-2 COM port definition

No.

Label

Definition

1

PE

Shield layer grounding

Description Shield layer grounding

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No.

Label

2

485A2

3

485B2

4

EN

5

GND

6

PE

7

485A2

8

485B2

9

EN

10

GND

11

CANH

12

CANL

5 Electrical Connections

Definition

Description

RS485A, RS485 differential signal+

Connects to the RS485 signal port+ of the inverter or the ESS in parallel.

RS485B, RS485 differential signal

Connects to the RS485 signal port of the inverter or the ESS in parallel.

Enable signal+

Connects to the positive enable signal terminal of the inverter or the ESS in parallel.

Enable signal GND

Connects to the enable signal GND of the inverter or the ESS in parallel.

Shield layer grounding Shield layer grounding

RS485A, RS485 differential signal+

Connects to the RS485 signal port+ of the inverter or the ESS in parallel.

RS485B, RS485 differential signal

Connects to the RS485 signal port of the inverter or the ESS in parallel.

Enable signal+

Connects to the positive enable signal terminal of the inverter or the ESS in parallel.

Enable signal GND

Connects to the enable signal GND of the inverter or the ESS in parallel.

Extended CAN bus port

Connects to the extended CANH port of the ESS in parallel.

Extended CAN bus port

Connects to the extended CANL port of the ESS in parallel.

Table 5-3 ETHERNET port definition

No.

Label

Definition

1

ETHERNET1 Network cable

extension port

2

ETHERNET2

Description Reserved

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Table 5-4 Signal cable connections

Device

Label

Inverter — ESS

ESS — ESS

Figure 5-6 Signal port connections

5 Electrical Connections

NOTE
Tighten the nut and ensure that the rubber plug is tightly pressed. Otherwise, the waterproof performance will be affected.

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5 Electrical Connections

Wiring Diagram Example
The following figure shows the cable connections for the SUN2000-(3KTL- 10KTL)M1 and SUN2000-(12K-25K)-MB0.

5.6 Installing Decorative Covers
After electrical connections are complete, check that cables are connected correctly and reliably, and then install the external decorative covers.

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Figure 5-7 Installing decorative covers

5 Electrical Connections

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DANGER
Wear personal protective equipment and use dedicated insulated tools to avoid electric shocks or short circuits.

CAUTION
During the power-on procedure, power off the batteries immediately if any fault is detected. Rectify the fault before proceeding with the procedure.
After batteries are used for system commissioning or batteries have discharged, charge the batteries in time. Otherwise, batteries may be damaged due to overdischarge.
Battery overdischarge and damage may occur if batteries with low SOC are stored. Batteries shall be recharged in a timely manner.

NOTICE
Before the equipment is put into operation for the first time, ensure that the parameters are set correctly by professional personnel. Incorrect parameter settings may result in noncompliance with local grid connection requirements and affect the normal operations of the equipment.

6.1 Check Before Power-On

Table 6-1 Checklist

No.

Check Item

1

ESS installation

Expected Result
The ESS is installed correctly and securely.

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No. 2 3 4 5 6
7 8

6 Power-On and Commissioning

Check Item Cable routing Cable binding Reliable grounding Switch status Cable connection
Unused terminal and port Installation environment

Expected Result
Cables are routed properly as required by the customer.
Cable ties are evenly distributed and no sharp edge exists.
The PE cable is connected correctly, securely, and reliably.
The DC SWITCH and all switches connected to the ESS are OFF.
DC input power cables, ESS cables, and signal cables are connected correctly and securely.
Unused terminals and ports are covered by watertight caps.
The installation space is proper, and the installation environment is clean and tidy.

6.2 System Power-On

CAUTION
Power on batteries within 24 hours after unpacking. If the batteries cannot be powered on in time, put them in the original packaging and place them in a dry indoor environment without corrosive gases. During later maintenance, ensure that the power-off time does not exceed 24 hours. Otherwise, the equipment may be damaged.

Power-On Process
Step 1 Turn on the ESS switch.
Step 2 At the AC switch between the inverter and the power grid, use a multimeter to measure the grid voltage and ensure that the voltage is within the allowed operating voltage range of the inverter. If the voltage is not in the allowed range, check the circuits.
Step 3 Turn on the AC switch between the inverter and the power grid.
Step 4 Turn on the DC switch (if any) between the PV strings and the inverter.
Step 5 (Optional) Remove the knob locking screw next to the DC switch on the inverter.
Step 6 Set the DC switch on the inverter to ON.

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Step 7 Observe the LED indicators on the inverter and the ESS to check their running status.
—-End

Figure 6-1 Power-on process

Indicator Definition
Figure 6-2 Indicator definition

Table 6-2 Indicator definitions

No.

Indicator

1

Energy Storage Control Unit indicator

2

Energy Storage Module indicator

3

Circular SOC indicator

4

Capsule-shaped indicator

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Table 6-3 First power-on indication First Power-On Indication

Blinking white slowly for three times

SOC displayed after the capsuleshaped indicator blinking for three times

Steady on

Table 6-4 System running indication Running Indication

Meaning

Steady white

Operating mode

Blinking white slowly

Standby mode

Off

Blinking red fast

N/A

Hibernation mode
The Energy Storage Control Unit reports an environment alarm.

N/A

Blinking red fast

The Energy Storage

Module reports an

environment alarm.

Steady red N/A

N/A Steady red

The Energy Storage Control Unit is faulty.
The Energy Storage Module is faulty.

ESS Indication

Meaning

White N/A*

N/A Blinking white slowly

Average SOC of the ESS
The capsule-shaped indicator is pulsating.

N/A

Blinking white fast

Device upgrade and

maintenance status

Blinking fast: on for 0.2s and off for 0.2s. Blinking slowly: on for 2s and off for 2s.

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NOTE
When the system is being charged or discharged, the circular SOC indicator blinks fast clockwise for two circles at an interval of 1 minute and starts to blink slowly from the third circle and then displays the current SOC. When the last indicator bar is blinking, the system is being charged or discharged.
When there is no AC input, press the black start button.
From 0s to 12s, the indicator status is as described in Table 12-2.
From 12s to 2 minutes 13s, the indicator on the left is blinking slowly and the indicator on the right is steady on.
Then, the indicator on the left is steady on, and the last bar of the circular SOC indicator is blinking, indicating that the ESS has started charging or discharging.

6.3 ESS Commissioning (Smart Dongle Networking)

6.3.1 Deploying a New Plant

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NOTE
For details about new plant deployment, see the FusionSolar App Quick Guide or scan the QR code.
Connection Test
Connection Test is supported in quick settings. You can perform this step to check whether the cable connections are correct, avoiding site visits for rectification.
Tap Connection Test and wait until the test is complete. If the test fails, rectify the fault in a timely manner.

6.3.2 Setting ESS Parameters
Connect the inverter on the app. Choose Power adjustment > Battery control on the home screen to set related parameters. Set parameters of the ESS connected to each inverter separately.

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Battery Control

Table 6-5 Battery control parameters

Parameter

Description

Working Mode

If this parameter is set to TOU, the system will enable Charge from AC. For details about other settings, see Setting TOU Parameters.

Maximum charge power (kW)

Set the maximum charge power of the ESS.

Maximum discharge power (kW)

Set the maximum discharge power of the ESS.

End-of-charge Set the end-of-charge SOC. SOC (%)

Value Range
Maximum selfconsumption
TOU Fully fed to
grid
Charge: [0, Maximum charge power] Discharge: [0, Maximum discharge power] 90%100%

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Parameter

Description

Value Range

End-ofdischarge SOC (%)

Set the end-of-discharge SOC.
If the battery SOC decreases to 0%, charge the battery in time. Otherwise, the battery capacity will attenuate irreversibly, and the resulting battery fault is not covered by the warranty. You are advised not to set the battery End- ofdischarge SOC to 0.

0%20%

Charge from AC

Charge from AC is disabled by default. After this function is enabled, power can be purchased from the grid. Comply with the grid charge requirements stipulated in local laws and regulations when this function is enabled.

Disabled (default)
Enabled

Maximum charge power of grid

Set the maximum power for charging from the grid.

[0, Maximum charge power of grid]

Grid charge cutoff SOC

Set the grid charge cutoff SOC.

[20%, 100%]

Maximum grid power during battery discharge

When the power purchased from the grid exceeds the preset threshold, the ESS starts discharging. The default value is 0. For example, if this parameter is set to 50 W and the load power is 40 W, 40 W power is purchased from the grid and the ESS does not discharge. If the load power is 100 W, 50 W power is purchased from the grid, and the ESS discharge power is 50 W.

[0, 1000]

NOTE If no PV modules are installed or the system has not detected sunlight for at least 24 hours, the minimum end-of-discharge SOC is 15%.
Setting TOU Parameters

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Parameter

Description

Value Range

Priority of excess PV energy

Charge: When the PV power is greater than the load power, the surplus PV energy is used to charge the batteries. After the maximum charge power is reached or the batteries are fully charged, the surplus PV energy is fed to the grid.
Fed to grid: When the PV power is greater than the load power, the surplus PV energy is preferentially fed to the grid. When the maximum output power of the inverter is reached, the surplus energy is used to charge the batteries. This setting is applicable to the scenario where the feed-in tariff (FIT) is higher than the electricity price. The batteries are used only for backup power.

Charge Fed to grid

Maximum charge power of grid (kW)

Maximum charge power allowed by the grid. The value is determined by the local grid company. If there is no requirement, the value is the maximum charge power of the ESS by default.

[0, Maximum charge power of grid]

6.3.3 Querying the ESS Status
Connect the inverter on the app. Tap Monitor on the home screen and tap the ESS icon to view the ESS running status, SOC, power, and charge and discharge status. If an alarm is displayed, see 7.3 Troubleshooting.
Figure 6-3 Querying the ESS status

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6.3.4 Forced Charge/Discharge
Connect the inverter on the app. Choose Maintenance > Battery maintenance > Forced charge/discharge on the home screen.

Table 6-6 Description of forced charge/discharge parameters

Mod Parameter e

Description

Man Charge/Discharge ual

Specifies whether to charge or discharge the ESS.

Charge power/Discharge power (kW)

Specifies the forced charge/ discharge power.

Charge setting mode/ Discharge setting mode

Specifies the charge or discharge mode.

Charge duration/Discharge duration (min)
Charged energy/Discharged energy (kWh)

Specifies the charge or discharge duration.
Specifies the charged or discharged energy. This parameter is not configurable.

Value Range
Stop Charge Discharge Charge: [0, Maximum
charge power] Discharge: [0, Maximum
discharge power] Duration Energy [0, 1440] –

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Mod Parameter e
Remaining time (min)

Main tena nce char ge

Target SOC Maintenance charge

Status

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Description

Value Range

Specifies the remaining

–

charge or discharge duration.

This parameter is not

configurable.

Sets the charge target SOC. [0, 100]

After this function is enabled, the ESS starts charging and stops charging when the target SOC is reached.

Enabled Disabled

Displays the charging status. Charging…/Charging completed

6.3.5 ESS Upgrade
ESS Upgrade
Connect the inverter on the app. Choose Maintenance > Upgrade on the home screen and select the corresponding ESS version.

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6.3.6 Peak Shaving

Function Procedure

This function applies to areas that have peak demand charges. The peak shaving function allows you to lower the peak power drawn from grid in Maximum selfconsumption or TOU mode during peak hours, reducing electricity fees.
NOTE
The peak shaving function cannot be used when the ESS working mode is set to Fully fed to grid.
1. Log in to the local commissioning screen. 2. Choose Power adjustment > Peak Shaving, and set the working mode for
peak shaving.

Parameter Peak Shaving

Description
To use Peak Shaving, you need to enable Charge from AC first.

Value Range
Disabled Active power
limit

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Parameter Backup power SOC for peak shaving (%)
Start date End date Peak Power (kW)

Description

Value Range

The value of this parameter affects the peak shaving capability. A larger value indicates stronger peak shaving capability.

Backup power SOC for peak shaving > Backup power SOC (when Off-grid mode is enabled) > Endof-discharge SOC

Set the peak power range based on the start time and end time. The peak power is configured based on electricity prices in different time segments. You are advised to set the peak power to a low value when the electricity price is high.
A maximum of 14 time segments can be set.

[0.000, 1000.000]

NOTE For details about the peak shaving function, see the Introduction to Peak Shaving.
6.4 ESS Commissioning (EMMA Networking)

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NOTE
For details, see FusionSolar App Quick Guide (EMMA).
Connection Test
Connection Test is supported in quick settings. You can perform this step to check whether the cable connections are correct, avoiding site visits for rectification. Tap Connection Test and wait until the test is complete. If the test fails, rectify the fault in a timely manner.

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6.4.2 Setting ESS Parameters
Connect the EMMA on the app. Choose Power adjustment > Battery control on the home screen to set related parameters.
Connect the EMMA on the app. Tap Monitor on the home screen, tap the corresponding inverter, tap Set, and set related parameters.

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Battery Control

Table 6-7 Battery control parameters

Parameter

Description

Value Range

Working Mode

If this parameter is set to TOU, the system will enable Charge from AC. For details about other settings, see Setting TOU Parameters.

Maximum selfconsumption
TOU
Fully fed to grid

Adjustment deadband (W)

The EMMA does not adjust the battery power within the adjustment deadband range.

[0, 35]

Maximum charge power Set the maximum charge power of the ESS. (kW)

Charge: [0, Maximum charge power]

Maximum discharge power (kW)

Set the maximum discharge power of the ESS.

Discharge: [0, Maximum discharge power]

End-of-charge SOC (%) Set the end-of-charge SOC.

90%100%

End-of-discharge SOC (%)

Set the end-of-discharge SOC.
If the battery SOC decreases to 0%, charge the battery in time. Otherwise, the battery capacity will attenuate irreversibly, and the resulting battery fault is not covered by the warranty. You are advised not to set the battery End- ofdischarge SOC to 0.

0%20%

Charge from AC

Charge from AC is disabled by default. After this function is enabled, power can be purchased from the grid. Comply with the grid charge requirements stipulated in local laws and regulations when this function is enabled.

Disabled (default)
Enabled

Maximum charge power Set the maximum power for charging from the

of grid

grid.

[0, Maximum charge power of grid]

Grid charge cutoff SOC Set the grid charge cutoff SOC.

[20%, 100%]

Maximum grid power during battery discharge

When the power purchased from the grid exceeds the preset threshold, the ESS starts discharging. The default value is 0. For example, if this parameter is set to 50 W and the load power is 40 W, 40 W power is purchased from the grid and the ESS does not discharge. If the load power is 100 W, 50 W power is purchased from the grid, and the ESS discharge power is 50 W.

[0, 1000]

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NOTE If no PV modules are installed or the system has not detected sunlight for at least 24 hours, the minimum end-of-discharge SOC is 15%.
Setting TOU Parameters

Parameter

Description

Value Range

Priority of excess PV energy

Charge: When the PV power is greater than the load power, the surplus PV energy is used to charge the batteries. After the maximum charge power is reached or the batteries are fully charged, the surplus PV energy is fed to the grid.
Fed to grid: When the PV power is greater than the load power, the surplus PV energy is preferentially fed to the grid. When the maximum output power of the inverter is reached, the surplus energy is used to charge the batteries. This setting is applicable to the scenario where the feed-in tariff (FIT) is higher than the electricity price. The batteries are used only for backup power.

Charge Fed to grid

Maximum charge power of grid (kW)

Maximum charge power allowed by the grid. The value is determined by the local grid company. If there is no requirement, the value is the maximum charge power of the ESS by default.

[0, Maximum charge power of grid]

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6.4.3 Querying the ESS Status

EMMA Networking
Connect the EMMA on the app. Tap Monitor on the home screen, tap the corresponding inverter, tap Connected device, and tap the ESS icon to view the running status, SOC, power, and charge and discharge status of the ESS. If an alarm is displayed, see 7.3 Troubleshooting.

6.4.4 Forced Charge/Discharge
ESS Charge/Discharge
Connect the EMMA on the app. Tap Monitor on the home screen, select the corresponding inverter, and choose Maintenance > Battery maintenance > Forced charge/discharge.

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Table 6-8 Description of forced charge/discharge parameters

Mod Parameter e

Description

Man Charge/Discharge ual

Specifies whether to charge or discharge the ESS.

Value Range
Stop Charge Discharge

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Mod Parameter e
Charge power/Discharge power (kW)
Charge setting mode/ Discharge setting mode Charge duration/Discharge duration (min) Charged energy/Discharged energy (kWh)
Remaining time (min)

Main tena nce char ge

Target SOC Maintenance charge

Status

Description
Specifies the forced charge/ discharge power.
Specifies the charge or discharge mode.
Specifies the charge or discharge duration.
Specifies the charged or discharged energy. This parameter is not configurable.
Specifies the remaining charge or discharge duration. This parameter is not configurable.
Sets the charge target SOC.
After this function is enabled, the ESS starts charging and stops charging when the target SOC is reached.
Displays the charging status.

Value Range
Charge: [0, Maximum charge power] Discharge: [0, Maximum discharge power] Duration Energy [0, 1440] –
–
[0, 100] Enabled Disabled
Charging…/Charging completed

6.4.5 ESS Upgrade
ESS Upgrade
Connect the EMMA on the app. Choose Maintenance > Upgrade on the home screen and select the corresponding ESS version.

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6.4.6 Peak Shaving

Function Procedure

This function applies to areas that have peak demand charges. The peak shaving function allows you to lower the peak power drawn from grid in Maximum selfconsumption or TOU mode during peak hours, reducing electricity fees.
NOTE
The peak shaving function cannot be used when the ESS working mode is set to Fully fed to grid.
1. Log in to the local commissioning screen. 2. Choose Power adjustment > Peak Shaving, and set the working mode for
peak shaving.

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Parameter Peak Shaving
Backup power SOC for peak shaving (%)
Start date End date Peak Power (kW)

Description

Value Range

To use Peak Shaving, you need to enable Charge from AC first.

No control
Active power limit
Apparent power limit

The value of this parameter affects the peak shaving capability. A larger value indicates stronger peak shaving capability.

Backup power SOC for peak shaving > Backup power SOC (when Off-grid mode is enabled) > Endof-discharge SOC

Set the peak power range based on the start time and end time. The peak power is configured based on electricity prices in different time segments. You are advised to set the peak power to a low value when the electricity price is high.
A maximum of 14 time segments can be set.

[0.000, 1000.000]

NOTE For details about the peak shaving function, see the Introduction to Peak Shaving.

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DANGER
Wear personal protective equipment and use dedicated insulated tools to avoid electric shocks or short circuits.
Do not smoke or have an open flame around batteries. Do not use wet cloth to clean exposed copper bars or other conductive parts. Do not use water or any solvent to clean batteries.
WARNING
Do not maintain batteries with power on. To power off the batteries before performing operations such as checking and tightening screw torques, explain the risks to the customer, obtain the customer’s written consent, and take effective preventive measures.
After batteries are discharged, charge them in time to avoid damage due to overdischarge.
Before moving or reconnecting the equipment, disconnect the mains and batteries and wait for five minutes until the equipment powers off. Before maintaining the equipment, check that no hazardous voltages remain in the DC bus or components to be maintained by using a multimeter.
CAUTION
Do not connect two or more cables to the positive or negative power port of a battery in parallel.
Stay away from the equipment when preparing cables to prevent cable scraps from entering the equipment. Cable scraps may cause sparks and result in personal injury and equipment damage.

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7.1 System Power-Off
Precautions
WARNING After the system powers off, the remaining electricity and heat may still cause
electric shocks and burns. Therefore, wait for 5 minutes after the system is powered off, wear protective gloves, and then perform operations on the ESS. You can maintain the ESS only when all indicators on the ESS are off. When the ESS is running, if you only turn off the DC SWITCH of the ESS, the system is not completely powered off. In this case, do not maintain the ESS.
Powering Off the System
Step 1 Send a shutdown command to the inverter on the app. Step 2 Turn off the AC switch between the inverter and the power grid. Step 3 Set the DC SWITCH at the bottom of the inverter to OFF. Step 4 (Optional) Install the locking screw for the DC SWITCH. Step 5 Set the DC SWITCH of the ESS to OFF. Step 6 (Optional) Install the locking screw for the DC SWITCH of the ESS. Step 7 Turn off the DC switch (if any) between the inverter and PV strings.
—-End
7.2 Routine Maintenance
Maintenance Requirements
To ensure that the ESS operates properly for a long term, you are advised to perform routine maintenance as described in this section.
CAUTION Power off the system before cleaning the system, connecting cables, and checking grounding reliability.

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Table 7-1 Maintenance checklist

Check Item

Check Method

Maintenance Interval

System cleanliness

Check periodically that the heat sinks are free from obstacles and dust.

Once every 6 to 12 months

System status

Check whether the ESS is damaged or deformed.
Check whether there is abnormal sound when the ESS is running.
Check whether ESS parameters are correctly set when the ESS is running.

Once every 6 months

Electrical connection

Check whether cables are securely connected.
Check whether cables are damaged, especially whether the cable sheath that contacts a metal surface is damaged.
Check whether unused DC input terminals, ESS terminals, and COM ports are locked by watertight caps.

6 months after the first commissioning and once every 6 to 12 months after that

Grounding reliability

Check whether the PE cable is securely connected.

6 months after the first commissioning and once every 6 to 12 months after that

7.3 Troubleshooting
NOTE
In this section, the battery power control module refers to the Energy Storage Control Unit and the battery pack refers to the battery expansion module.
Alarm severities are defined as follows:
Major: The ESS shuts down or some of its functions are abnormal due to a fault.
Minor: Some components of the ESS are faulty but the ESS can still work.

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Table 7-2 Common alarms and troubleshooting measures

Alarm Alarm Name ID

Severity

Possible Cause

Suggestion

3000

Low battery DC Major input bus voltage

1. The inverter is faulty and pulls down the bus voltage.
2. The DC bus voltage of the battery is low.
3. The battery DC switch is OFF.
4. The battery cables are not correctly connected.

1. Check for inverter fault alarms and clear them if any.
2. Turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.
3. Check the cable connections to the [Battery-1/2] power control module by referring to the quick installation guide.
4. After checking that the battery power cables are correctly connected, turn on the battery DC switch, AC output switch, and inverter DC input switch in sequence.
5. If the alarm persists, contact the vendor or technical support.

3001

Abnormal battery power control module

Major

1. A major fault has occurred on the internal circuit of the battery power control module.
2. The internal communication of the battery power control module is abnormal.

1. Turn off the inverter AC output switch, inverter DC input switch, and battery DC switch, and wait for 5 minutes.
2. Turn on the battery DC switch, inverter AC output switch, and inverter DC input switch.
3. If the alarm persists on the [Battery-1/2] power control module (the battery fault indicator is steady on), contact your vendor or technical support.

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Alarm Alarm Name ID

Severity

3002

Battery power control module overtemperatur e

Minor

3003

Battery power control module fuse blown

Major

Possible Cause