Sunways STE-BS5 User manual

SUNWAYS TECHNOLOGIES CO., LTD.
STE-BS Li-HV System
User Manual
EN

CONTENTS
1 Preface ……………………………………………………… 5
1.1 Overview ………………………………………………………………………… 5
1.2 Target Groups ……………………………………………………………………5
2 Safety Instructions ……………………………………… 6
2.1 Safety Notes ……………………………………………………………………… 6
2.2 Important Safety Matters ……………………………………………………… 6
2.3 Environmental Conditions ……………………………………………………9
2.4 Statement ………………………………………………………………………… 9
2.5 Symbol on the Battery Label ……………………………………………… 10
2.6 Symbol on the Packing Box ………………………………………………… 12
3 Product Description ……………………………………… 13
3.1 Basic Features ………………………………………………………………… 13
4 Battery Introduction ……………………………………… 14
4.1 Appearance Introduction …………………………………………………… 14
4.2 Packing List …………………………………………………………………… 16
5 Installation ………………………………………………… 18
5.1 Location ……………………………………………………………………… 18
5.2 Mounting ……………………………………………………………………… 18
5.3 Electrical Connection ……………………………………………………… 26
6 System Start and Stop …………………………………… 31
6.1 Start System …………………………………………………………………… 31
6.2 Stop System …………………………………………………………………… 32
7 Troubleshooting …………………………………………… 33
7.1 Requirements ………………………………………………………………… 33
8 Battery Storage …………………………………………… 35
8.1 Storage Requirements ……………………………………………………… 35
8.2 Storage Duration Overdue and Recharge ………………………………… 37
9 Troubleshooting …………………………………………… 38
9.1 Maintenance ………………………………………………………………… 38
9.2 Troubleshooting ……………………………………………………………… 39
10 Technical Parameters …………………………………… 40

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Attention
The products, services or features purchased are subject to the commercial contracts
and terms of Sunways Technologies Co., Ltd. All or part of the products, services or
features described in this document may not be within purchased. Unless otherwise
agreed in the contract, the Company shall not make any express or implied
declaration or guarantee of the contents of this document.
Due to product version upgrades or other reasons, the contents of this document will
be updated periodically. Unless otherwise agreed, this document serves only as a
guide to use, and all statements, information and recommendations in this document
do not constitute any express or implied guarantee.
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. 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 should be used in an environment that meets the design
speci󽗉cations. 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.
1 Preface
※ 1.1 Overview
This manual is an integral part of Sunways STE-BS series LFP battery system (hereinafter
referred to as the battery or STE-BS battery). It mainly introduces the assembly,
installation, electrical connection, debugging, maintenance and troubleshooting of
the products. Before installing and using battery, please read this manual carefully,
understand the safety information and be familiar with the functions and characteristics
of hybrid battery.
※ 1.2 Target Groups
This manual is applicable to the electrical installers with professional quali󽗉cations and
end-users. If there are any problems in the installation process, please call Sunways
service telephone at [phone] or email Sunways at [e-mail]
for consultation.

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2 Safety Instructions
※ 2.1 Safety Notes
Before installation, please read this manual and warning labels on battery carefully and
follow the instructions in this manual strictly.
※ 2.2 Important Safety Matters
SAVE THESE IMPORTANT SAFETY INSTRUCTIONS.
STE-BS stackable Li-HV system installation and repair instructions assume knowledge
of high voltage electricity and should only be performed by Sunways certi󽗉ed installers.
Sunways assumes no liability for injury or property damage due to repairs attempted by
unquali󽗉ed individuals or a failure to properly follow these instructions. These warnings
and cautions must be followed when using our product.
Warning
Read this entire document before installing or using STE-BS stackable Li-HV system.
Failure to do so or to follow any of the instructions or warnings in this document can
result in electrical shock, serious injury, or death, or can damage STE-BS stackable Li-HV
system, potentially rendering it inoperable.
Warning
A battery can present a risk of electrical shock, fire, or explosion from vented gases.
Observe proper precautions.
Warning
STE-BS stackable Li-HV storage system installation must be carried out only by Sunways
Certi󽗉ed Installers, who have been trained in dealing with high voltage electricity.
Warning
The product is heavy and challenging to lift.
Warning
Use STE-BS Battery only as directed.
Warning
Do not use STE-BS Battery if it is defective, appears cracked, broken, or otherwise
damaged, or fails to operate.
Warning
Do not use STE-BS Battery if it is defective, appears cracked, broken, or otherwise
damaged, or fails to operate.
Warning
Do not attempt to open, disassemble, repair, tamper with, or modify STE-BS Battery.
STE-BS Battery is not user serviceable. LFP Cells in STE-BS Battery are not replaceable.
Contact the STE-BS Authorized Reseller who sold the STE-BS Battery for any repairs.
Warning
Do not connect STE-BS Battery to alternating current carrying conductors. STE-BS
storage system including battery and battery must be wired to either a battery or a DC
combiner panel that is then wired to an inverter. No other wiring con󽗉guration may be
used.
Warning
STE-BS Battery contains components, such as switches and relays, that can produce arcs
or sparks.
Warning
To protect STE-BS Battery and its components from damage when transporting, handle
with care. Do not impact, pull, drag, or step on STE-BS Battery. Do not subject STE-BS
Battery to any strong force. To prevent damage, leave STE-BS Battery in its shipping
packaging until it is ready to be installed.
Warning
Do not insert foreign objects into any part of STE-BS Battery.

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Warning
Do not expose STE-BS Battery or its components to direct 󽗊ame.
Warning
Do not install STE-BS Battery near heating equipment.
Warning
Do not immerse STE-BS Battery or its components in water or other 󽗊uids.
Caution
Do not use cleaning solvents to clean STE-BS Battery, or expose STE-BS Battery to
󽗊ammable or harsh chemicals or vapors.
Caution
Do not use fluids, parts, or accessories other than those specified in this manual,
including use of non-genuine STE-BS parts or accessories, or parts or accessories not
purchased directly from STE-BS or a STE-BS -certi󽗉ed party.
Caution
Do not place STE-BS Battery in a storage condition for more than one (1) month, or
permit the electrical feed on the STE-BS Battery to be severed for more than one (1)
month, without placing STE-BS Battery into a storage condition in accordance with STE-
BS’s storage speci󽗉cations.
Caution
Do not paint any part of STE-BS Battery, including any internal or external components
such as the exterior shell or casing.
Caution
Do not connect STE-BS Battery directly to photovoltaic (PV) solar wiring.
Caution
When installing STE-BS Battery in a garage or near vehicles, keep it out of the driving
path. If possible, install the STE-BS Battery on a side wall and/or above the height of
vehicle bumpers.
※ 2.3 Environmental Conditions
Warning
Install STE-BS Battery at a height that prevents damage from 󽗊ooding.
Warning
Operating or storing STE-BS Battery in temperatures outside its speci󽗉ed range might
cause damage to STE-BS Battery.
Warning
Do not expose the STE-BS Battery to ambient temperatures above 45℃ (113℉ ) or below
0℃ (32℉ ).
Caution
Ensure that no water sources are above or near STE-BS Battery, including downspouts,
sprinklers, or faucets.
※ 2.4 Statement
Sunways Technologies Co.,Ltd. has the right not to undertake quality assurance in any of
the following circumstances:
① Damages caused by improper transportation.
② Damages caused by incorrect storage, installation or use.

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③ Damages caused by installation and use of equipment by non-professionals or
untrained personnel.
④ Damages caused by failure to comply with the instructions and safety warnings in this
document.
⑤ Damages of running in an environment that does not meet the requirements stated in
this document.
⑥ Damages caused by operation beyond the parameters speci󽗉ed in applicable technical
speci󽗉cations.
⑦ Damages caused by unauthorized disassembly, alteration of products or modi󽗉cation
of software codes.
⑧ Damages caused by abnormal natural environment (force majeure, such as lightning,
earthquake, 󽗉re, storm, etc.).
⑨ Any damages caused by the process of installation and operation which don't follow
the local standards and regulations.
⑩ Products beyond the warranty period.
※ 2.5 Symbol on the Battery Label
Sunways Technologies Co.,Ltd. has the right not to undertake quality assurance in any of
the following circumstances:
① Damages caused by improper transportation.
② Damages caused by incorrect storage, installation or use.
Symbol Description
Do not sit or put things on battery.
Do not disconnect or disassemble by non-professional personnel.
Do not place near open 󽗊ame or 󽗊ammable material.
Do not place at a children’s or pet’s reach area.
Electric shock hazard, live parts, risk of electric shock, do not touch.
If 󽗉re, switch o󽗈 the breaker on DC side and stay away from battery.
Please read the instructions carefully before installation.
The battery cannot be disposed of with household waste.

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3 Product Description
※ 3.1 Basic Features
3.1.1 Function
The STE-BS series is a stackable mounted energy storage battery.
3.1.2 Models
The STE-BS series battery includes 9 models which are listed below:
STE-BS5, STE-BS7, STE-BS10, STE-BS12, STE-BS15, STE-BS17, STE-BS20, STE-BS23, STE-BS25.
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Symbol Description
Handle with care.
This side up.
Keep dry.
Stacked layers.
※ 2.6 Symbol on the Packing Box

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4 Battery Introduction
※ 4.1 Appearance Introduction
4.1.1 Control Module
Item Terminal Note
1Battery MCB Control battery output
2Battery output +
3Battery output -
4Service COM Speci󽗉ed Debug Interface
5Inverter COM Connect to the inverter communication port
6Power button Turn the battery on and o󽗈
Figure 4-1 Control module
Figure 4-2 Battery Module
Left side view Right side view
Figure 4-3 Base
1
2 3
4
5
6

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Control Module×1 Battery Module×2~10
Base×1 Fixings×2
Fixed Bolt×40
※ 4.2 Packing List
The package of the battery includes the following accessories. Please check whether the
accessories in the packing box are complete when receiving the goods. See Figure 3-7 for
the packing list.
Expansion×4
STE-M2560-S STE-P2560-S
STE-B2560-S
Battery Plug×1 PE Termina×1

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5 Installation
※ 5.1 Location
① The area is completely water proof. The 󽗊oor is 󽗊at and level.
② There are no 󽗊ammable or explosive materials.
③ The ambient temperature is within the range from 0 to 50.
④ The temperature and humidity are maintained at a constant level. There is minimal
dust and dirt in the area.
⑤ The distance from heat source is more than 2 meters.
⑥ The distance from air outlet of whole system is more than 0.5 meters. Do not cover or
wrap the battery case or cabinet.
⑦ Do not place at children or pet touchable area. The installation area shall avoid direct
sunlight.
⑧ There are no mandatory ventilation requirements for battery module, but please avoid
installation in con󽗉ned area (minimum 300mm to top/left/right/front).
⑨ The aeration shall avoid of high salinity, humidity, or temperature.
5.2.1 Install the Base
※ 5.2 Mounting
① Check the installation environment to ensure ground level.
② Place the base on the ground, and make sure it is level and stable.
Figure 5-1 Adjust the base to level state
Measure with a spirit level
③ Distance between base and wall is 20mm~120mm.
Figure 5-2 Distance between base and wall
5.2.2 Install the Module
① After the base is installed, remove the protective film of the terminals, and the
remaining battery module and control module are then placed in turn.
Figure e 5-3 Remove the protective 󽗉lm
20mm-120mm
Wall