CanadianSolar EP CUBE User manual

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Installation Manual V2.1

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ABOUT THIS MANUAL……………………….......................................................................................................................................................... 04
1.1 Applicable Products……….......................................................................................................................................................................04
1.2 Intended Target Group...........................................................................................................................................................................04
1.3 Scope of This Manual …...................................................................................................................................................................04
1.4 Copyright ……………………………..................................................................................................................................................................05
1.5 Disclaimer................................................................................................................................................................................................05
1.6 Declaration of Conformity...............................................................................................................................................................05
1.7 Abbreviated Terms...................................................................................................................................................................................05
1.8 Contact Us..................................................................................................................................................................................................06
SAFETY INSTRUCTIONS……………....................................................................................................................................................................07
1. Conduct in Case of Fire............................................... ...........................................................................................................................07
2. General and Personal Safety.................................................................................................................................................................08
3. Personnel Requirements....................................................................................................................................................................... 09
4. Personal Protective Equipment............................................................................................................................................................ 10
5. Electrical Safety........................................................................................................................................................................................ 10
5.1 General Requirements........................................................................................................................................................................ 10
5.2 Cabling Requirements......................................................................................................................................................................... 10
5.3 Operation................................................................................................................................................................................................ 11
5.4 Battery Safety........................................................................................................................................................................................ 11
5.5 Storage Requirements........................................................................................................................................................................ 12
5.6 Transportation Requirements.......................................................................................................................................................... 12
5.7 Installation Environment Requirements........................................................................................................................................ 13
5.8 Commissioning.................................................................................................................................................................................... 14
5.9 Maintenance and Replacement...................................................................................................................................................... 14
PRODUCT DESCRIPTION..................................................................................................................................................................................15
1. Appearance.................................................................................................................................................................................................... 15
1.1 EP Cube HES........................................................................................................................................................................................ 15
A. EP Cube PCS..................................................................................................................................................................................... 16
B. EP Cube Battery Module................................................................................................................................................................ 17
C. EP Cube Base.................................................................................................................................................................................... 17
D. EP Cube AC Switch Box................................................................................................................................................................. 18
CONTENTS

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2. Operation Modes ....................................................................................................................................................................................19
2.1. Self-Consumption Mode................................................................................................................................................................19
2.2. Backup Mode.....................................................................................................................................................................................19
2.3. Time of Use Mode............................................................................................................................................................................20
3. Warning Labels Description..................................................................................................................................................................21
4. Product Labels……………….………….............................................................................................................................................................22
EP Cube INSTALLATION ................................................................................................................................................................................23
1. Installation Site Requirements............................................................................................................................................................23
2. On site Installation………………….................................................................................................................................................................27
3. Installation of AC Switch Box............................................................................................................................................................... 43
THE EP Cube SYSTEM ......................................................................................................................................................................................44
1. System Topology……….............................................................................................................................................................................44
WIRING & COMMISSIONING...........................................................................................................................................................................46
1. EP Cube system wiring.........................................................................................................................................................................46
1.1. Wiring from Solar Panels to EP Cube PCS ............................................................................................................................... 47
1.2. AC Wiring from EP Cube PCS to AC Switch Box........................................................................................................................49
1.3. Wiring of Other Components......................................................................................................................................................... 54
2. EP Cube Commissioning.......................................................................................................................................................................57
2.1. EP Cube startup...............................................................................................................................................................................57
2.2. Commissioning Via EP Cube App ...............................................................................................................................................59
3. EP Cube Energize and De-energize.....................................................................................................................................................70
3.1. EP Cube Energize............................................................................................................................................................................70
3.2. EP Cube De-energize……………………................................................................................................................................................72
TROUBLESHOOTING & MAINTENANCE…...................................................................................................................................................74
APPENDIX................................................................................. ...........................................................................................................................75

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About this Manual
➢Read this manual carefully in its entirety before installation / operation.
➢Retain this manual for reference purposes.
1.1. Applicable Products
This manual is valid for the EP Cube HES Series Only. EP Cube HES series includes following products:
EP Cube HES-EU1-706G;
EP Cube HES-EU1-710G;
EP Cube HES-EU1-713G;
EP Cube HES-EU1-716G;
EP Cube HES-EU1-720G;
1.2. Intended Target Group
The instructions contained in this installation manual must only be performed by qualified EP
authorized personnel who must have completed installer training program provided by EP.
Prior skills required before taking installations are following:
Understanding of how batteries and inverters work, and they are operated
Understanding and complying with the local standards, directives and electrical connection
requirements
Training in dealing with the hazards associated with the installation and operation of electrical
equipment and lithium batteries
Training in the installation and commissioning of electrical equipment
1.3. Scope of this Manual
This manual describes the installation process and provides a set of guidelines for EP Cube system
installers. It provides system’s an overview of the system and installation instructions, electrical
connections, commissioning, operation, expansion, decommissioning, troubleshooting, maintenance
and storage. Please read thoroughly this manual before installation and follow the instructions during
the entire installation process.
If you have any further queries regarding the product, please contact the EP Cube service team.
WARNING: EP Cube products can only be installed, repaired, replaced and
maintained by the EP authorized personnel for safety and warranty purposes.

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1.4. Copyright
All rights reserved. The disclosure, duplication, distribution, and editing of this document, or
utilization and communication of the content are not permitted unless authorized in writing. All
rights, including rights created by patent grant or registration of a utility model or a design, are
reserved.
1.5. Disclaimer
This document has gone through rigorous technical review before being published to provide
accurate information. However, EP believes in striving for continuous improvement of our
products and specifications may change without prior notice. Thus, it will be revised regularly
and any modifications and amendments will be included in subsequent issues. The illustrations
and images in this manual are for demonstration purposes only. The responsibility of a safe and
quality installation is of the qualified and licensed installation professional. Actual product
details may vary in appearance on the installation site.
1.6. Declaration of Conformity
EP Cube system described in this manual complies with the applicable European directives. The
certificate of compliance and completed certifications can be found in the download section of
EP Cube website: https://eternalplanetenergy.com/EN/manuals.html
1.7. Abbreviated Terms
ABBR Description
AC Alternating Current
CT Current Transducer
DC Direct Current
kW Kilowatt
L Live
N Neutral
PV Photovoltaic

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1.8. Contact Us
Eternalplanet Energy Co. Ltd
Service Hotline: [phone]
Email: [e-mail], (For Spain only)
Email: [e-mail] , (For Italy only)
Email: [e-mail] , (For Germany only)

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1. Conduct In case of fire
Caution
➢Immediately contact the fire department or other relevant emergency response team.
➢Notify all people who might be affected and ensure that they are able to evacuate this area.
In the event of fire or potential risk of battery modules or storage system catching fire:
1. Leave or do not enter the room in which the storage system and battery modules are located.
2. Avoid contact with escaping smoke or steam. If contact occurs, rinse the affected area thoroughly
with water. In the case of irritation of the skin, eyes or mucous membranes, consult a doctor.
3. Contact the fire department.
4. Contact the EP service team for more instructions on how to handle EP Cube system.
5. There is a danger of electrocution when extinguishing a fire while the storage system is switched
on.In the event of a fire in the vicinity of the product or in the storage system itself, proceed as
follows before beginning any extinguishing measures:
a. Switching the storage system off to electrically isolate it. The battery modules will still be carrying
voltage and stored power.
b. Switch off the mains circuit breakers/fuses in the building.
c. Only firefighters with appropriate personal protective equipment are permitted to enter the room
where the storage system is located.
SAFETY INSTRUCTIONS
Please read this section carefully and strictly implement its contents for personal protection and
property safety before installing and using the product. EP is not liable for any loss caused by the
violation of the instructions in this manual and relevant instructions on the equipment. All
descriptions in the manual are for guidance only.
Ensure that the equipment is used in environments that meet its design specifications. Otherwise,
it may result in equipment malfunction, component damage, personal injuries, and/or property
damage.
All installations and maintenance should be performed by trained and knowledgeable technicians
who are familiar with local standards and safety regulations. The safety instructions in this
document are only supplemental to local laws and regulations.
DANGER: Indicates the situation which, if not avoided, will lead to death or serious injury.
CAUTION: Indicates the situation which, attention is necessary to avoid potential injury or
property
damage.

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d. If the storage system or mains fuses cannot be safely switched off: Observe the minimum
distances applicable for the specific extinguishing means used.
The storage system works with a nominal voltage of 230 V (AC) and 230.4 V (DC).
Extinguishing agents
1. A fire can be extinguished using conventional extinguishing agents. i.e. ABC or carbon
dioxide.
2. Water is recommended as an extinguishing agent in order to cool the battery modules and
therefore prevent thermal runaway in battery modules which are still intact.
DANGER:
EP Cube consists of EP Cube PCS and battery modules that are considerably heavy!
It is recommended to use lifting equipment to avoid any potential injuries.
Do not stack the unpacked products to avoid irreversible damage.
Ensure that the power switch and the breaker of the EP Cube are always turned off prior to all
installation, replacement, and maintenance processes.
Do not attempt to open, disassemble, tamper with, or modify the EP Cube without prior
written approval from the EP company.
Do not operate the EP Cube out of the specified conditions and requirements.
It is prohibited to touch the EP Cube internal components when it's running.
Do not place the EP Cube or its components in water or other liquids.
Do not expose EP Cube to flammable gases, other corrosive substances, and heating
sources.
Do not short-circuit the terminals of the battery modules to avoid causing electric shock and
fire.
Do not stand on, lean on, or sit on the top of EP Cube.
Do not use water to clean electrical components inside or outside of a cabinet.
2. General and Personal Safety

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3. Personnel Requirements
Personnel who plan to install or maintain EP Cube equipment must receive thorough
training, understand all necessary safety precautions, and be able to correctly perform all
operations.
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 operate the equipment, including operators, trained personnel, and
professionals, should possess the local national required qualifications in special
operations such as high-voltage operations, working at heights, and operations of special
equipment.
Only professionals or authorized personnel are allowed to replace the equipment or
components (including software).
CAUTION:
The transportation, installation, and commissioning of the EP Cube must be carried out under
the specified conditions. Do not expose EP Cube to extreme conditions during these periods.
EP Cube can only be installed, repaired, replaced, and maintained by the EP authorized
personnel for safety and warranty purposes. PPE must be worn during any operations.
Do not place foreign objects on top of the product or insert inside the product.
Ensure there is enough space around EP Cube for ventilation.
Be careful to protect the EP Cube from impact when installing it in a garage or near vehicles. If
possible, install the EP Cube on a side wall or above the height of vehicle bumpers.
Do not try reverse engineering, decompile, disassemble, adapt, implant, or perform other
derived operations on the EP Cube firmware.
Do not study the internal implementation of the product firmware source code and steal
intellectual property rights.
Professionals
personnel who are trained or experienced in equipment operations and
are clear of the sources and degree of various potential hazards in
equipment installation, operation, and maintenance
Trained personnel
personnel who are technically trained, have required experience, are
aware of possible hazards on themselves in certain operations, and are
able to take protective measures to minimize the hazards on
themselves and other people
Operators
operation personnel who may come in contact with the equipment,
except trained personnel and professionals

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4. Personal Protective Equipment
Wear the following safety equipment properly to perform installations. Installers must meet the
relevant requirements of applicable standards and local laws.
Safety goggles Ear plugs Insulated gloves Safety gloves Safety shoes
5. Electrical Safety
5.1 General Requirements
1. Ensure that all electrical connections comply with local electrical standards.
2. Obtain approval from the local electric utility company before using the equipment in grid-tied
mode.
3. Ensure that the cables you prepared meet local regulations.
4. Use dedicated insulated tools when performing high-voltage operations.
5.2 Cabling Requirements
1. When routing cables, ensure that a distance of at least 30 mm exists between the cables and
heat-generating components or areas. This prevents damage to the insulation layer of the cables.
2. Bind cables of the same type together. When routing cables of different types, ensure that they
are at least 30 mm away from each other.
3. Ensure that the cables used in a grid-tied PV power system are properly connected and
insulated and meet specifications.
4. In sections where cables are routed through pipes or holes, these cables must be protected to
prevent from being damaged by sharp edges or burrs.
5. When the temperature low, violent impact or vibration may damage the plastic cable sheathing.
To ensure safety, comply with the following requirements:
a. Cables must be laid or installed only when the temperature is higher than 0°C. Handle cables
with caution, especially at a low temperature.
b. Cables stored at sub-zero temperatures must be put at room temperature for at least 24 hours
before they are laid out.