Sofar BTS E5-DS5 User manual

BTS E5~20-DS5 User Manual
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BTS E5~20-DS5 User Manual
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Contents
Preface................................................................................................................ 3
1. Basic Safety Information..........................................................................6
1.1 Requirement for Installation and Maintenance................... 6
1.2 Description of safety information symbols..............................................9
2. Product Introduction........................................................................................ 12
2.1 Product overview.............................................................................. 12
2.2 Product Model Description...............................................................13
2.3 Product Appearance..........................................................................15
2.4 Indicator lights description.................................................... 17
2.5 Product label..................................................................................... 18
2.6 System capacity expansion description............................................ 20
3. Product Installation..........................................................................................21
3.1 Checking Before Installation............................................................ 21
3.2 Preparation for Installation Tools..................................................... 22
3.3 Installation environment................................................................... 23
3.4 Installation Space..............................................................................24
3.5 Battery system installation................................................................25
4. Electrical Connection.......................................................................................29
4.1 Preparation of Connection Cables.................................................... 30
4.2 Electrical Connection for Internal System........................................30
4.2.1 Protection grounding cable connection............... 30
4.2.2 Power cables connection............................................31
4.2.3 Communication cable connection..........................32
4.3 External Electrical Connection......................................................... 35
4.3.1 External Electrical Connection..................................35
4.3.2 External ground Connection of the PGND cable36
4.3.3 DC power cable installation.......................................38
4.3.4 BMS communication cable installation.................. 40
4.4 Battery parallel installation.................................................... 41
4.5 Fuse replacement...................................................................... 42

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4.6 Install the protective cover................................................................43
5. Commissioning................................................................................................ 45
5.1 Double Check................................................................................... 45
5.2 Electrify for the First Time（Important）....................................... 45
5.3 Battery Parameter Settings............................................................... 45
5.4 Software Update............................................................................... 47
5.5 Battery Powered Off......................................................................... 48
6. Trouble shooting and maintenance.................................................................. 49
6.1 Troubleshooting......................................................................... 49
6.2 Daily Maintenance..................................................................... 54
6.3 Battery Module Storage Requirements and Power
Supply....................................................................................................... 54
7. DataSheet.........................................................................................................56
8. Manufacturer's Warranty and Liability Terms................................................. 60

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Preface
Notice
The purchased products, services and features are governed by
the commercial contract made by the Company. All or part of
the products and features described in this document may not
be within the purchase scope. Except as otherwise agreed
herein, no representations or warranties, express or implied, are
made as to the contents of this document.
Save this Instruction
This manual must be considered as an integral part of the
equipment. Customer can print the electronic version to hard
copy and keeping properly for future reference. Anyone who
operates the device at any time must operate in accordance
with the requirements of this manual.
Copyright Declaration
The copyright of this manual belongs to Shenzhen
SOFARSOLAR Co., Ltd. Any corporation or individual should not
plagiarize, partially cope or fully copy (including software, etc.),
not allow to duplication and publishment in any form and any
way. All rights reserved, SOFAR reserves the right of final
interpretation. This manual subject to modify according to
user's or customer's feedback. Please check our website at
http://www.sofarsolar.com for lasted version.

BTS E5~20-DS5 User Manual
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Document Updates
V3.0 2023-10-27
Outline
It describes the assembly, installation, commissioning,
maintenance and failure of the product. Please read it carefully
before operating.
Scope of Validity
This product user manual describes the installation, electrical
connection, debugging, maintenance and troubleshooting of
BTS series intelligent battery system. The series includes the
following models：
BTS
E5-DS5
BTS
E10-DS5
BTS
E15-DS5
BTS
E20-DS5
Target Group
This document is intended for professional electrical engineers
who are responsible for battery installation and commissioning,
including technical support engineers, system engineers, and
electrical engineers.
Symbols Used
In order to ensure the personal and property safety of users
when using BTS series intelligent battery system, as well as the
efficient use of this product, the manual provides relevant safe
operation information and highlights it with corresponding
symbols. These stressed messages must be fully understood and

BTS E5~20-DS5 User Manual
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absolutely adhered to avoid personal injury and property
damage. The symbols used in this manual are listed below.
“Danger”indicates a hazardous situation which,
if not avoided, will result in death or serious
injury.
Danger
“Warning”indicates a hazardous situation
which, if not avoided, could result in death or
serious injury.
Warning
“Caution”indicates a hazardous situation
which, if not avoided, could result in minor or
moderate injury.
Caution
“Attention”indicates there are potential risks, if
fail to prevent, may lead to equipment cannot
normally or property damage.
Attention
“Note”provides additional information and tips
that are valuable for the optimal operation of
the product, will help you to solve a problem or
save your time.
Note

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1. Basic Safety Information
Please read the instruction carefully. Faulty operation may cause
serious injury or death.
If you have any question or problem when you
read the following information, please contact
Shenzhen SOFARSOLAR CO., Ltd.
Note
1.1 Requirement for Installation and Maintenance
The installation of BTS series intelligent battery system must be
in full compliance with national and local laws and regulations.
Read and understand all instructions contained in this manual
and familiarize yourself with safety symbols before installing
and commissioning the device.
For any maintenance or repair, please contact the nearest
authorized repair center. For information about the nearest
authorization center, contact your reseller. Do not repair by
yourself, which may cause personal injury or property injury.
Before installing and maintaining the device, disconnect the
device from the external device using the DC switch. Otherwise,
the high voltage may cause serious injury.
SOFAR will not be responsible for any personal injury or
property injury caused by improper use.

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Installation and maintenance personnel requirements
The personnel responsible for installation and maintenance of
the equipment for the first voyage must first receive strict
training, understand various safety precautions and master
correct operation methods.
Only qualified professionals or trained personnel are
allowed to install, operate, and maintain the device.
Only qualified professionals are allowed to remove safety
facilities and repair devices.
The personnel, including the operators, trained personnel,
and professional personnel, who operate the equipment should
have the special operation qualification required by the local
state, such as the qualification of high voltage operation, height
climbing, and special equipment operation.
Only professional or authorized personnel can replace
equipment or components (including software).
Professional personnel: those who have
the training or operation experience of
equipment and are able to understand
the potential sources and magnitude of
hazards in the process of equipment
installation, operation and maintenance.
Trained personnel: personnel who have
received the appropriate technical
training and have the necessary
experience are aware of the risks that
may be posed to them in performing a
certain operation and can take measures
to minimize the risks to themselves or
other personnel.
Operators: operators who may have
Note

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Assembly Condition
Assemble the BTS intelligent battery system as detailed in the
following sections of this manual. Place the battery in a position
that can be fixed on the edge and ensure that it is placed
vertically. A suitable place for installation of electrical
equipment should be selected to ensure sufficient space for fire
escape for maintenance in case of failure. Maintain proper
ventilation to ensure adequate air circulation for cooling, and air
humidity is recommended to be less than <90% during
assembly.
Transportation Requirement
The Batteries are in the good electrical and physical condition
when it ship out from factory. During transport, battery module
must be placed in its original package or other proper package.
Transportation company should responsible for any damage
during transport period. Please check the battery thoroughly
when taking delivery. If you find any packing problems that may
cause the damage of inverter or any visible damage, please
notice the responsible transportation company immediately.
You can ask your installer or SOFAR for help is necessary.
This product contains battery module through UN38.3, belongs
to the ninth category of dangerous goods. Therefore, loading
and unloading must comply with local laws and regulations and
industry standards during transportation. Rough loading and
unloading may cause short circuit or damage to batteries in
access to the equipment except trained
and professional personnel.

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containers, which may result in battery leakage, breakage,
explosion, or fire.
Requirement During the Transportation
Shipping complies with the IMDG CODE and the
International Maritime Dangerous Goods CODE.
For land transportation, comply with ADR or JT T617
shipping requirements
Meet the regulatory requirements of the transport
regulatory authorities of the country of origin, route and
destination.
Comply with international regulations for the transport of
dangerous goods and the supervision requirements of the
corresponding national transport regulatory authorities.
1.2 Description of safety information symbols
High voltage of battery may be harmful to
health!
Only certified engineer can operate the
product; Juveniles, Disable, should not use
this product;
Keep this product out of the reach of
children;
Danger
Caution of burn injuries due to hot enclosure!
Only touch the screen and pressing key of the
product while it is working
Caution
Batteries should be grounded in accordance
to the requirements of the local electrical
grid company
Attention
To ensure that the battery is used in the
equipment system authorized by SOFAR, and

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the battery is damaged or other losses
caused by illegal use or unauthorized use of
the equipment by SOFAR. SOFAR has the
right not to do warranty, not to bear joint
liability.
Warning
Sings on the battery module
The battery module carries a number of safety related labels.
Make sure to read and understand the labels carefully before
installing the device.
Symbols
Name
Explanation
This is a residual
voltage in the
battery module!
There is a high voltage,when
the battery is powered on.
After the battery is powered
off, the internal capacitor is
still charged, operator
should wait for 5 minutes to
ensure the capacitor is
completely discharged.
Caution of high
voltage and
electric shock
The battery module operates
at high voltages. Prior to
performing any work on the
product, disconnect the
product from voltage
sources. All work on the
product must be carried out
by qualified persons only.
Caution of hot
surface
The battery module can get
hot during operation. Avoid
contact during operation.
Grounding
Terminal
Connect the battery module
to the ground bar for
grounding protection
Observe the
documentation
Read all documentation
supplied with the product
before install

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Sings on the battery distribution unit
The battery distribution unit carries a number of safety related
labels. Make sure to read and understand the labels carefully
before installing the device.
Symbols
Name
Explanation
This is a
residual
voltage in the
battery
module!
There is a high voltage,when
the battery is powered on.
After the battery is powered
off, the internal capacitor is still
charged, operator should wait
for 5 minutes to ensure the
capacitor is completely
discharged.
Caution of high
voltage and
electric shock
The battery module operates
at high voltages. Prior to
performing any work on the
product, disconnect the
product from voltage sources.
All work on the product must
be carried out by qualified
persons only.
Caution of hot
surface
The battery module can get
hot during operation. Avoid
contact during operation.
Grounding
Terminal
Connect the battery module to
the ground bar for grounding
protection
Observe the
documentation
Read all documentation
supplied with the product
before install

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2. Product Introduction
2.1 Product overview
BTS series intelligent battery system is mainly composed of
battery module and battery distribution unit. The input and
output voltages are high DC voltage. The system adopts
modular design and stacked installation method. The capacity
can be flexibly configured based on actual requirements. The
capacity ranges is 5.12kWh ~ 40.96kWh.
The main features are as follows：
Full modular design, easy to install and transport；
Current balance between battery modules, higher battery
available capacity；
Capacity Expansion by Stages；
Low power consumption of battery；
One key activate/shutdown.
Figure.2-1 BTS series application principle diagram
Table 2-1 Battery module model demonstration

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No
Definition
1
BTS 5K-BDU
2
BTS 5K
2.2 Product Model Description
Battery module：
Figure 2-2 Battery module model identifiers
Table 2-2 Battery module model demonstration
Identifiers
Meaning
Specification
①
Product series name
SOFAR BTS series
battery module
name
②
Battery module energy
grade
5K: Battery nominal
module energy is
5.12kWh
Battery distribution unit：
Figure 2-3 Battery distribution unit model identifiers
Table 2-3 Battery distribution unit model demonstration
Identifiers
Meaning
Specification

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①
Product series name
SOFAR BTS series
-battery module
name
②
Battery module energy
grade
5K: Battery module
nominal energy is
5.12kWh
③
System Unit
BDU: Battery
distribution unit
Battery system：
Figure 2-4 Battery system model identifiers
Table 2-4 Battery system model demonstration
Identifiers
Meaning
Specification
①
Product series name
SOFAR BTS series
battery module
name
②
Energy grade
E5: Battery total
energy is 5.12kWh
E10: Battery total
energy is 10.24kWh
E15: Battery total
energy is 15.36kWh
E20: Battery total
energy is 20.48kWh

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③
Battery module mode
DS5：Battery
module is BTS 5K
2.3 Product Appearance
Figure .2-5 System appearance diagram
Table 2-5 System appearance definition
No
Definition
No
Definition
1
Indicator light
5
Base
2
DC switch
6
Black startup switch
3
Battery distribution unit
7
Heat sink
4
Battery module
Battery distribution unit：
Front surface
Back surface
Left surface
Right surface
Front surface

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Figure.2-6 Schematic diagram of battery power distribution unit ports
Table 2-6 Interface definition of battery power distribution unit
No
Definition
No
Definition
1
Battery distribution
unit
7
DC switch
2
Black startup switch
8
BDU communication
output（COM-OUT）
3
Battery input（BAT IN）
9
Fuse
4
BDU cascading
communication
port(Link)
10
Battery output（BAT
Out）
5
BDU communication
input（COM-IN）
11
Grounding hole
6
Grounding hole
Battery module port：
Figure.2-7 Battery module port diagram
Table 2-7 Battery module interface definition
No
Definition
No
Definition
1
Battery module
5
Grounding hole
2
Left side handle
6
Communication
output（Link Port Out）

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3
Output terminal B+
7
Communication input
（Link Port In）
4
Output terminal B-
8
Right side handle
2.4 Indicator lights description
Figure.2-8 Indicator diagram
Normal status indicator light：
Table 2-8. Normal status indicator light definition
Status
Status
light
Alarm
light
SOC light
L1
L2
L3
L4
L5
Shutdown
Standby
(t=1s)
Display according to the
battery SOC value
Updating
(t=1s)
Charge
Discharge
SOC Indicator light definition：
Table 2-9 SOC indicator light definition while charging
SOC value
SOC light
L1
L2
L3
L4
L5
0%~4%
5%~19%
(t=1s)
20%~39%

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(t=1s)
40%~59%
(t=1s)
60%~79%
(t=1s)
80%~100%
(t=1s)
Table 2-10 SOC indicator light definition while discharging
SOC Value
SOC light
L1
L2
L3
L4
L5
0%~4%
5%~19%
20%~39%
40%~59%
60%~79%
80%~100%
2.5 Product label
Battery distribution unit：