Dyness POWERCUBE User manual

POWERCUBE User Manual
POWERCUBE
User Manual

POWERCUBE User Manual
Content
STATEMENT OF LAW ...................................................................................................................................... 1
SAFETY PRECAUTIONS AND MAINTENANCE INSTRUCTIONS ................................................................. 2
1 INTRODUCTION ........................................................................................................................................ 4
1.1 BRIEF INTRODUCTION ..................................................................................................................... 4
1.2 PRODUCT PROPERTIES .................................................................................................................. 4
1.3 PRODUCT IDENTITY DEFINITION .......................................................................................................4
2 PRODUCT SPECIFICATION ........................................................................................................................6
2.1 SIZE AND WEIGHT ........................................................................................................................6
2.2 PERFORMANCE PARAMETER ...........................................................................................................6
2.3 INTERFACE DEFINITION ..................................................................................................................7
2.3.1 DIP SWITCH DEFINITION AND DESCRIPTION ..................................................................................9
2.4 BATTERY MANAGEMENT SYSTEM(BMS) ........................................................................................11
2.4.1 VOLTAGE PROTECTION ........................................................................................................ 11
2.4.2 CURRENT PROTECTION ........................................................................................................ 11
2.4.3 TEMPERATURE PROTECTION ................................................................................................. 11
2.4.4 OTHER PROTECTION ............................................................................................................11
3 INSTALLATION AND CONFIGURATION .................................................................................................12
3.1 READY FOR INSTALLATION ........................................................................................................... 12
3.1.1 ENVIRONMENTAL REQUIREMENTS ..........................................................................................12
3.1.2 TOOLS AND DATA ...............................................................................................................12
3.1.3 TECHNICAL PREPARATION .................................................................................................... 13
3.1.4 UNPACKING INSPECTION ......................................................................................................13
3.1.5 ENGINEERING COORDINATION ...............................................................................................15
3.2 EQUIPMENT INSTALLATION .......................................................................................................... 15
3.2.1 INSTALLATION PREPARATION .................................................................................................. 16
3.2.2 MECHANICAL INSTALLATION ................................................................................................... 16
3.2.3 ELECTRICAL INSTALLATION ....................................................................................................18
4 USE, MAINTENANCE AND TROUBLESHOOTING ..................................................................................22
4.1 BATTERY SYSTEM USAGE AND OPERATION INSTRUCTIONS ...................................................................22
4.2 ALARM DESCRIPTION AND PROCESSING .......................................................................................... 22
4.3 ANALYSIS AND TREATMENT OF COMMON FAULTS .............................................................................23

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Statement of Law
Copyright of this document belongs to Jiangsu Daqin New Energy Technology Co., Ltd.
No part of this documentation maybe excerpted, reproduced, translated,
annotated or duplicated in any form or by any means without the prior
written permission of Jiangsu Daqin New Energy Technology Co., Ltd. All Rights Reserved.
This product complies with the design requirements of environmental protection and personal
safety. The storage, use and disposal of the products shall be carried out in accordance with the
product manual, relevant contract or relevant laws and regulations.
Customer can check the related information on the website of Jiangsu Daqin New Energy
Technology Co., Ltd when the product or technology is updated.
Web URL：http://www.dyness-tech.com/
Please note that the product can be modified without prior notice.
Revision History
Revision NO.
Revision Date
Revision Reason
1.0
2019.04.22
First Published
1.1
2019.10.24
Add new product model

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Safety Precautions and maintenance instructions
Warning
Please do not put the battery into water or fire, in case of explosion or any other
situation that might endanger your life.
Please connect wires properly while installation, do not reverse connect.
To avoid short circuit, please do not connect positive and negative poles with
conductor (Wires for instance).
Please do not stab, hit, trample or strike the battery in any other way.
Please shut off the power completely when removing the device or reconnecting wires
during the daily use or it could cause the danger of electric shock.
Please use dry powder extinguisher to put out the flame when encountering a fire
hazard, liquid extinguisher could result in the risk of secondary disaster.
For your safety, please do not arbitrarily dismantle any component in any
circumstances unless a specialist or an authorized one from our company, device
breakdown due to improper operation will not be covered under warranty.
Caution
We have strict inspection to ensure the quality when products are shipped out,
however, please contact us if case bulging or another abnormal phenomenon.
For your safety, device shall be ground connected properly before normal use.
To assure the proper use please make sure parameters among the relevant device are
compatible.
Please do not mixed-use batteries from different manufacturers, different types and
models, as well as old and new together.
Ambient and storage method could impact the life span and product reliability, please
consider the operation environment abundantly to make sure device works in proper
condition.
For long-term storage, the battery should be recharged once every 6 months, and the
amount of electric charge shall exceed 80% of the rated capacity.
Please charge the battery in 18 hours after it discharges fully and starts over-discharging
protection.
Formula of theoretical standby time: T=C/I (T is standby time, C is battery capacity, I is
total current of all loads).
The product is affixed with a torn invalid label before leaving the factory. If anyone
need to open the cover to operate, such as set DIP mode, expand the capacity or
other operations that won’t harm the product, customer needs to contact DYNESS
and inform the product ID. DYNESS will record the case, confirm the operation can be
operated and will authorize. After the authorization, only professionals are allowed to

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operate. Contact the DYNESS authorized distributor or agent to get a new torn invalid
label. After the operation, re-attach the new torn invalid label at different locations.
Preface
Manual declaration
Powercube series energy storage system is composed of several B4850 or B4874 energy storage
system units connected in parallel to provide users with energy storage power generation.
During the day, the excess power of photovoltaic power generation can be stored in the battery.
At night or when needed, the stored electrical energy can be used to supply power to the
electrical equipment, which can improve the efficiency of photovoltaic power generation, peak
load shifting, and emergency power backup.
This user manual describes all kinds of Powercube series. It details the basic structure,
parameters, installation, and operation and maintenance of the equipment.

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1 Introduction
1.1 Brief Introduction
The B4850 and B3 lithium iron phosphate battery systems are standard battery system units.
Each module can be connected in parallel to obtain a complete system of certain specifications.
Customer can select the appropriate Powercube specifications according to their needs. The
product is especially suitable for energy storage applications with high operating temperatures,
limited installation space, long power backup time and long service life.
1.2 Product Properties
Powercube series energy storage product’s anode materials are lithium iron phosphate, battery
cells are managed effectively by BMS with better performance, the system feature as below:
Comply with European ROHS, Certified SGS, employ non-toxic, non-pollution
environment-friendly battery.
Anode materials are lithium iron phosphate (LiFePO4), safer with longer life span.
Carries battery management system with better performance, possesses protection
function like over-discharge, over-charge, over-current, abnormal temperature.
Self-management on charging and discharging, Single core balancing function.
Intelligent design configures integrated inspection module, with 3 remote functions
(remote-measuring, remote-communicating and remote-controlling).
Flexible configurations allow parallel of multi battery for longer standby time.
Self-ventilation with lower system noise.
Less battery self-discharge, then recharging period can be up to 10 months during the
storage.
No memory effect so that battery can be charged and discharged shallowly.
With wide range of temperature for working environment, -10oC ~ +55 oC, circulation span
and discharging performance are well under high temperature.
Less volume, lighter weight and longer system backup time.
1.3 Product identity definition
Figure1-1 Battery Energy Storage System nameplate

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Battery voltage is higher than safe voltage, direct contact with
electric shock hazard.
Be careful with your actions and be aware of the dangers.
Read the user manual before using.
The scrapped battery cannot be put into the garbage can and must
be professionally recycled.
After the battery life is terminated, the battery can continue to be
used after it recycled by the professional recycling organization and
do not discard it at will.
This battery product meets European directive requirements.
This battery product passed the TUV certification test.

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2 Product Specification
2.1 Size and Weight
Table 2-1 Powercube series Device Model
roduct Series
Dimension
(mm)
Nominal
Voltage
Nominal
Capacity
Weight
IP Level
Powercube-2B3
600*520*1140
DC48V
150Ah
≈122.5kg
IP65
Powercube-3B3
DC48V
225Ah
≈155kg
IP65
Powercube-4B3
DC48V
300Ah
≈187.5kg
IP65
Powercube-5B3
DC48V
375Ah
≈220kg
IP65
Powercube-6B3
DC48V
450Ah
≈252.5kg
IP65
2.2 Performance Parameter
Table 2-2 Powercube series performance parameter
Product Series
Powercube-2B
3
Powercube-
3B3
Powercube-4
B3
Powercube-
5Box
Powercube-
6Box
Nominal Voltage(V)
48
48
48
48
48
Work Voltage Range(V)
42~54
42~54
42~54
42~54
42~54
Nominal Capacity(Ah)
150
225
300
375
450
Nominal Energy(kWh)
7.2
10.8
14.4
18.0
21.6
Nominal Power(kW)
3.6
5.4
7.2
9.0
10.8
Max Power(kW)
7.2
10.8
10.8
10.8
10.8
Maximum charge/
discharging current
[Ad.c.]
150
225
225
225
225
1s Peak Power(kW)
7.2
10.8
14.4
18
21.6
1s Peak Current(A)
150
225
300
375
450
Charging Current(A)
75
112.5
150
187.5
225
Discharge Current(A)
75
112.5
150
187.5
225
Operating altitude range
[m]
≤2000m
≤2000m
≤2000m
≤2000m
≤2000m
Storage temperature
range (°C)
10~40
10~40
10~40
10~40
10~40
Storage humidity range
5 to 85 % RH
5 to 85 % RH
5 to 85 % RH
5 to 85 % RH
5 to 85 % RH
Protection class
Class I
Class I
Class I
Class I
Class I
Discharge Depth
90%
90%
90%
90%
90%
Over Voltage Grade
OCV II
OCV II
OCV II
OCV II
OCV II
Ambient operating
temperature range (°C)
(-10~55)
for discharge
(0~55)
for charge
non-derating
under 50°C
(-10~55)
for discharge
(0~55)
for charge
non-derating
under 50°C
(-10~55)
for discharge
(0~55)
for charge
non-derating
under 50°C
(-10~55)
for discharge
(0~55)
for charge
non-derating
under 50°C
(-10~55)
for discharge
(0~55)
for charge
non-derating
under 50°C

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2.3 Interface Definition
This section elaborates on interface functions of the back interface on the Powercube cabinet.
Figure2-1The sketch of back interface of Powercube.
Table 2-3 Interface Definition
Item
Name
Definition
Interface 1
Power cable- negative
waterproof connector
Reserve
Interface 2
Power cable- negative
waterproof connector
The battery DC output negative pole
Interface 3
RJ45 network cable
connector
Reserve
Interface 4
RJ45 network cable
connector
CAN/RS485 communication interface
(Factory default CAN communication
mode)
Interface 5
Power cable- positive
waterproof connector
The battery DC output positive pole
Interface 6
Power cable- positive
waterproof connector
Reserve
The below section elaborates on interface functions of the front interface of the battery module.
1
2
3
4
5
6

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Figure2-2 The sketch of interface.
Table 2-4 Interface Definition
Item
Name
Definition
1
Power switch
OFF/ON, remains ‘ON when using
2
Positive socket
Battery output or parallel positive line
3
ADD
DIP switch
4
SW (battery
wake/sleep
Switch)
When power switch is in ‘ON’, long pressing SW for 3s to enable
the battery for switch-on ,then switch on the DC breaker between
the battery with inverter.If you need to shut down the system,firstly
swich off the DC breaker between the battery with the inverter,
then press SW for 3s and switch the power button to “OFF”.
5
SOC
Green light, showing battery capacity
6
ALM
Red lights, flash when warming, always on when
Protection. When the condition of triggering protection is
removed, the battery can recover automatically
7
RUN
Green light, flashing when standby, always on when discharge,
flash when charging
8
CAN/485
Communication Port
Communication (factory default CAN communication)
9
DRY CONTACT
/
10
Negative socket
Battery output or parallel negative line
11
Grounding
Shell ground connection
12
COM
Communication cascade port, support RS232

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2.3.1 DIP switch definition and description
Table 2-5 Interface Definition
DIP switch position (host communication protocol and baud rate selection)
#1
#2
#3
#4
spare
Host or slave
Baud rate selection
OFF
OFF:slave
OFF：CAN: 500K,485: 9600
ON:host
ON：CAN: 250K,485: 115200
DIP switch description:
The battery pack is connected in parallel in the Powercube, the battery module that
communication connected to the inverter is defined as the host. The host can communicate with
the slave through the CAN interface. The host summarizes the information of the entire battery
system and communicates with the inverter through CAN or 485. The connection mode is
divided into the following two cases:
Note:
Before opening the cover to change the DIP mode, contact DYNESS to inform the ID, DYNESS will
record the battery ID and authorizes the opening operation. Only authorized by Dyness to
operate.
Except for changing the DIP mode, any other operations cannot be done.
Figure2-3 DIP switch mode schematic diagram
1. If the host is the latest B3 battery with DIP switch:
(1) The communication cable from the host CAN IN to the inverter comm port should be the
correct one.
(2) When the battery works with GOODWE、Solis、LUX、Sofar、DEYE、VICTRON、IMEON、
Infinisolar、Sungrow、SMA、RENAC、DELIOS、SAJ(CAN Comm) ，Growatt HVM-ES/WPV(CAN
port),before starting the battery,you need put the host DIP switch "# 3" to the "ON" position
(to the top), then turn on the batteries.
(3) If the battery communicates with the Axpert-king,Axpert-VMIII,Growatt SPH/SPA(CAN
comm)、GMDE、Saj(485 comm), turn the host DIP switch "#2" to "ON" position.
(4) If the battery communicates with the Growatt SPF HVM-P/ES/WPV by RS485 port, turn the
host DIP switch "#2" and "#3" to "ON".
(5) If the battery module is in communication with the ICC by 485 communication, turn the
host DIP switch "#1" and "#4" to "ON".

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the DIP switch of the slaves need to turn the “#4” to “ON”.
(7) The DIP switch of the slaves no need to be changed.
(8) If the energy storage system has only one B3, it is the host itself, and still follow the above
steps.
Note: For more information of matching inverter brands, please subject to the latest document
<The list of compatibility between Dyness ESS and Inverters >.
Caution：The DIP switch mode in case (5),1001 is only for ICC(a special commnunication
device of some no-communication inverter), it’s a specia firmware in BMS,different from general
firmware,so if customers want to use ICC,please contact dyness to confirm.
Note:
1.After the whole system connection,set the master DIP mode according to the inverter model
firstly,then start the battery.
2.The BAT-INV comms cable is from inverter comm port to master CAN IN port,BAT-BAT cable is
from master CAN OUT to slave1 CAN IN,slave1 CAN OUT to slave2 CAN IN.
DIP Switch mode 3
ADD: 0110
DIP Switch mode 1
ADD: 0010
DIP Switch mode 2
ADD: 0100
DIP Switch mode 6
ADD: 0000
DIP Switch mode 4
ADD: 1001
DIP Switch mode 5
ADD: 0001

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2.4 Battery Management System(BMS)
2.4.1 Voltage Protection
Discharging Low Voltage Protection：
When any battery cell voltage is lower than the protection value during discharging, the
over-discharging protection starts, and the battery buzzer makes an alarm sound. Then battery
system stops supplying power to the outside. When the voltage of each cell recovers to rated
return range, the protection is over.
Charging Over Voltage Protection：
When total voltage or any battery cell voltage reaches the protection value during charging,
battery stops charging. When total voltage or a cell recover to rated return range, the protection
is over.
2.4.2 Current Protection
Over Current Protection in Charging：
When the charging current is greater than the protection value, the battery buzzer alarms and
the system stops charging. Protection is released after rated time delaying.
Over Current Protection in Discharging：
When the discharge current is greater than the protection value, the battery buzzer alarms and
the system stops discharging. Protection is released after rated time delaying.
Note:
The buzzer sound alarm setting can be manually turned off on the background software, and the
factory default is on.
2.4.3 Temperature Protection
Less/Over temperature protection in charging：
When battery’s temperature is beyond range of 0 ℃~55 ℃during charging, temperature
protection starts, device stops charging.
The protection is over when it recovers to rated return range.
Less/Over temperature protection in discharging：
When battery’s temperature is beyond range of -10℃~+55℃during discharging, temperature
protection starts, device stops supplying power to the outside.
The protection is over when it recovers to rated return range.
2.4.4 Other Protection
Short Circuit Protection：
When the battery is activated from the shutdown state, if a short circuit occurs, the system starts
short-circuit protection for 1 minute.

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Self-Shutdown：
When device connects no external loads for over 72hours, device will dormant standby
automatically.
Caution
Battery’s maximum discharging current should be more than load’s maximum working current.
3 Installation and Configuration
3.1 Ready for installation
Safety Requirement
This system can only be installed by personnel who have been trained in the power supply
system and have sufficient knowledge of the power system.
The safety regulations and local safety regulations listed below should always be followed during
the installation.
All circuits connected to this power system with an external voltage of less than 48V
must meet the SELV requirements defined in the IEC60950 standard.
If operating within the power system cabinet, make sure the power system is not
charged. Battery devices should also be switched off
Distribution cable wiring should be reasonable and has the protective measures to
avoid touching these cables while operating power equipment.
when installing the battery system, must wear the protective items below:
The isolation gloves Safety goggles Safety shoes
3.1.1 Environmental requirements
Working temperature: -10oC~ +55 oC
Charging temperature range is 0oC~55 oC,
Discharging temperature range is-10oC~ +55 oC
Storage temperature: 10 oC~ 40 oC
Relative humidity: 5% ~ 85%RH
Elevation: no more than 2000m
Operating environment: Indoor or outdoor installation, sites avoid direct sunlight, no
conductive dust and corrosive gas.
Installation location should be away from the sea to avoid brine and high humidity
environment.
The ground is flat and level.
There is no flammable explosive near to the installation places.
The optimal ambient temperature is 15oC ~ 30 oC
Keep away from dust and messy zones
3.1.2 Tools and data
Hardware tool
Tools and meters that may be used are shown in table 3-1.

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Table 3-1 Tool instrument
Name
Screwdriver (word, cross)
AVO meter
Wrench
Clamp meter
Inclined pliers
Insulating tape
Needle nose pliers
The thermometer
Clip forceps
Wrist strap
Wire stripper
AVO meter
Electric drill
Tape
3.1.3 Technical preparation
Electrical interface check
Devices that can be connected directly to the battery can be user equipment, power
supplies, or other power supplies.
Confirm whether the user's PV power generation equipment, power supply or other
power supply equipment has a DC output interface, and measure whether the DC
power output voltage meets the voltage range requirements in Table 2-2.
Confirm that the maximum discharge current capability of the DC power interface
of the user's photovoltaic power generation equipment, power supply or other
power supply equipment should be greater than the maximum charging current of
the products used in Table 2-2.
If the maximum discharge capacity of the DC power interface of the user's
photovoltaic power generation equipment is less than the maximum charging
current of the products used in Table 2-2, the DC power interface of the user's
photovoltaic power generation equipment shall have a current limiting function to
ensure the normal operation of the user’s equipment.
Verify that the maximum operating current of the battery-powered user equipment
(inverter DC input) should be less than the maximum discharge current of the
products used in Table 2-2.
The security check
Firefighting equipment should be provided near the equipment, such as portable
dry powder fire extinguisher.
Automatic fire fighting system shall be provided for the case where necessary.
No flammable, explosive and other dangerous articles are placed beside the
battery.
3.1.4 Unpacking inspection
When the equipment arrives at the installation site, loading and unloading should
be carried out according to the rules and regulations, to prevent from being
exposed to sun and rain.
Before unpacking, the total number of packages shall be indicated according to the
shipping list attached to each package, and the case shall be checked for good
condition.

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In the process of unpacking, handle with care and protect the surface coating of the
object.
Open the package, the installation personnel should read the technical documents,
verify the list, according to the configuration table and packing list, ensure objects
are complete and intact, if the internal packing is damaged, should be examined
and recorded in detail.
Packing list is as follows:
Item
Specification
（mm）
Quantity
Figure
2B3
3B3
4B3
5B3
6B3
Cabinet
600*520*1140
1
1
1
1
1
Battery
module
B3: 48V745h
480*405×132
2
3
4
5
6
Parallel
cable-
positive
Red
/25mm2/L215
mm
1
2
3
4
5
Parallel
cable-
negative
Black
/25mm2/L215
mm
1
2
3
4
5
Power cable-
positive1
Red
/25mm2/L370
0mm
1
1
1
1
1
Power cable-
positive2
Red
/25mm2/L270
0mm
1
1
1
1
1
Power cable-
negative1
Black
/25mm2/L370
0mm
1
1
1
1
1
Power cable-
negative2
Black
/25mm2/L270
0mm
1
1
1
1
1
Communicati
on parallel
cable
Black/250mm
/ Double RJ45
plug
1
2
3
4
Communicati
on cable-to
inverter-1
Yellow
/L800mm/
Double RJ45
plug
1
1
1
1

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3.1.5 Engineering coordination
Attention should be paid to the following items before construction:
Power line specification.
The power line specification shall meet the requirements of maximum discharge
current for each product in table2-2.
Mounting space and bearing capacity.
Make sure that the battery has enough room to install, and that the battery rack
and bracket have enough load capacity.
Wiring.
Make sure the power line and ground wire are reasonable. Not easy to short-circuit,
water and corrosion.
Circuit breaker.
Install circuit breaker between the battery system and the inverter,Select the circuit
breaker based on the actual battery system usage and installation suggestions.
3.2 Equipment installation
The wall for battery installation shall be solid brick or cement wall with strong bearing capacity
and wall thickness no less than 100mm.
Mounting space requirements：
floor installation
Communicati
on cable-to
inverter-2
Black/L2000m
m/ Double
RJ45 plug
1
1
1
1
Ground wire
L500mm,4mm²
1
1
1
1
1

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Table 3-2 Installation steps
Step1
Installation
preparation
Confirm that the ON/OFF switch on the front panel of each
B3 unit is in the “OFF” state to ensure no live operation.
Step 2
Mechanical
installation
1. Cabinet placement position determination
2. Top cables pre-installed
3. Battery module installation
Step3
Electrical
installation
1. Battery module parallel cable installation
2. Battery module Power cable- positive installation
3. Battery module Power cable- negative installation
4. Communication parallel cable connection
Step4
Battery system
self-test
1. Press the ON/OFF switch to the "ON" state
2. BMS system power-on activation
3. Check the system output voltage
4. Shut down the system
Step5
Connect to the
inverter
1. Wiring the battery system Power cable- positive and
Power cable- positive to the circuit breaker between the
inverter and battery system.
2. Connect the Communication cable to inverter
3.2.1 Installation preparation
1. Prepare equipment and tools for installation
2. Check the cabinet and confirm that the ON/OFF switch on the front panel of each
battery module is in the "OFF" state to ensure no live operation.
3.2.2 Mechanical installation
Figure3-1
1. Fix the Powercube cabinet to the mounting
position and remove the front cover.
Please refer to 3.2 to place the cabinet on
the ground.
Pass the total positive cable and the total
negative cable (Power cable- positive1, Power
cable- positive2 and Power cable-negative1,
Power cable-negative2) through the
waterproof connector (Interface1,2,5,6)on
the back of the cabinet, and insert the
external CAN cable(Communication cable-to
inverter2) into the RJ45 network cable
connector(Interface 4).

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Table 3-3Interface Definition
Item
Name
Definition
Interface1
Power cable- negative
waterproof connector
Reserve
Interface 2
Power cable- negative
waterproof connector
The battery DC output negative pole
Interface 3
RJ45 network cable
connector
Reserve
Interface 4
RJ45 network cable
connector
CAN/RS485 communication interface
(Factory default CAN communication mode)
Interface 5
Power cable- positive
waterproof connector
The battery DC output positive pole
Interface 6
Power cable- positive
waterproof connector
Reserve
Figure3-2
2. Place the battery unit on the cabinet
bracket as shown in the figure and push it
into the cabinet to the installation position.
1
2
3
4
5
6

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Figure3-3
3.2.3 Electrical installation
Statement：For Australian market, installations should be conducted in accordance
with AS/NZS 3000 and AS/NZS 5139”.
Before connecting the power cables, using multimeter to measure cable continuity, short circuit,
confirm positive and negative, and accurately mark the cable labels.
Measuring method:
Cable availability: Select the buzzer and use the probe to measure the ends of the same
color cable. If the buzzer calls, it means the cable is available.
Short circuit judgment: choose multimeter resistor file, probe the same end of positive and
negative pole, if the resistor shows infinity, means that the cable is available.
After visual testing of power line is connected well, the positive and negative poles of the
battery shall be connected respectively to the positive and negative poles of the opposite
terminal.
It is better to add a circuit breaker between the inverter and the battery system. The selection of
the circuit breaker requires:
Voltage: U>60V
Current: I = Inverter power
45V
The circuit breaker is installed between the battery module and the inverter, as shown in Figure
3-8:
Caution
Note: If you have any questions during installation, please contact your dealer to avoid damage
to the equipment.
1. Install the power cable
Install the Parallel cable- negative and the Parallel cable- positive as shown in Figure 3-8,
then connect the positive cable and the total negative cable (use Power cable- positive1,
Power cable- positive2 and Power cable- negative1, Power cable- negative2).
Among them, the Power cable- positive1, Power cable- positive2 are red, and Power cable-
negative1, Power cable- negative2 are black.
3. Fix the battery unit in the cabinet with
nuts through the mounting holes top on
the hanging ears of the battery module
front panel. The other units are in this
order, as shown in the Figure3-6.