AJ PowerCube P5A User manual

File version: V1.0
Page 1of 33
PowerCube P5A Horizontal Energy Storage
System User Manual
Note: Please read and understand all the contents of this Manual carefully before installation and use of
the product, and please keep this Manual properly for look-up at any time.

File version: V1.0
Page 2of 33
Table of Contents
1. Instructions........................................................................................................................................................................................ 3
1.1 Range of Application.............................................................................................................................................................. 3
1.2 Meaning of Abbreviations...................................................................................................................................................... 3
1.3 Symbol Stipulations................................................................................................................................................................4
2 Safety Precautions..............................................................................................................................................................................4
2.1 Safety Symbols....................................................................................................................................................................... 4
2.2 Personnel Requirements......................................................................................................................................................... 5
2.3 Electrical Safety......................................................................................................................................................................7
2.4 Installation Environment Requirements................................................................................................................................. 8
3 Product Introduction...........................................................................................................................................................................9
3.1 Brief Introduction to Product..................................................................................................................................................9
3.2 Description of Energy Storage Capacity.............................................................................................................................. 10
3.3 Monitoring............................................................................................................................................................................ 12
3.4 Interface introduction............................................................................................................................................................14
4 Application Scenarios and Settings................................................................................................................................................. 19
4.1 Application Scenarios...........................................................................................................................................................19
4.2 Load Working Mode............................................................................................................................................................. 21
5 System Installation........................................................................................................................................................................... 21
5.1 Inspections before Installation..............................................................................................................................................21
5.2 Preparation of Tools and Meters........................................................................................................................................... 22
5.3 Selection of Installation Location.........................................................................................................................................22
5.4 Device Installation.........................................................................................................................................................................23
6 Electrical Connection....................................................................................................................................................................... 25
6.1 List of product accessories....................................................................................................................................................25
6.2 Internal Electrical Connection of Energy Storage................................................................................................................26
7 System Debugging.......................................................................................................................................................................... 28
7.1 Inspections before Power-On............................................................................................................................................... 28
7.2 Power-On of Energy Storage Battery Module..................................................................................................................... 28
8 System Maintenance........................................................................................................................................................................ 28
8.1 System Power-Off................................................................................................................................................................ 28
8.2 Routine Maintenance............................................................................................................................................................29
8.3 Trouble Shooting.................................................................................................................................................................. 30
8.4 Battery Storage and Maintenance.........................................................................................................................................31
8.5 Device Cleaning....................................................................................................................................................................32
8.6 Battery Module Date.............................................................................................................................................................33

File version: V1.0
Page 3of 33
1. Instructions
Thank you very much for choosing the PowerCube P5A series household energy storage system developed and
produced by our company. Please read and understand all contents of the Manual carefully before installing and using the
product. If you have any suggestions during the use, please do not hesitate to give us feedback.
1.1 Range of Application
The installation and user manual of PowerCube P5A series is applicable to the installation and use of the following
products:
No.
Applicable to the countries with 110V /220V mains voltage
1
PowerCube P5A-5
5
PowerCube P5A-25
2
PowerCube P5A-10
6
PowerCube P5A-30
3
PowerCube P5A-15
7
PowerCube P5A-35
4
PowerCube P5A-20
8
PowerCube P5A-40
The product should be used in compliance with local standards, laws and regulations, because any non-compliance
with the use may lead to personal injuries and property loss.
The drawings provided in this Manual are used to explain the concepts related to the product, including product
information, installation guide, electrical connection, system debugging, safety information, common problems and
maintenance, etc.
The internal parameters of this product have been adjusted before delivery. No internal parameters can be changed
without permission. Any unauthorized changes to the settings will invalidate the warranty, and the Company will not be
liable for any loss resulting therefrom.
This Manual and other related documents are an integral part of the product and should be kept properly for onsite
installation personnel and related technical personnel to consult.
1.2 Meaning of Abbreviations
AC
Alternating Current
DC
Direct Current
PV
Photovoltaic
BMS
Battery Management System
PCS
Power Conversion System
RJ45
Registered Jack 45
SOC
State Of Charge
C
Charge C-rate
RS485
RS485 Communication Interface
CAN
Controller Area Network

File version: V1.0
Page 4of 33
1.3 Symbol Stipulations
There may be following symbols herein, and their meanings are as follows.
Symbols
Description
DANGER!
Indicate a hazard with a high level of risk which, if not avoided, will result in death
or serious injuries.
CAUTION
Indicate a hazard with a medium level of risk which, if not avoided, could result in
death or serious injuries.
ATTENTION
Indicate a hazard with a low level of risk which, if not avoided, could result in
minor or moderate injuries.
NOTICE
Warning information about device or environment safety. If not avoided, equipment
damage, data loss, performance degradation or other unanticipated results may be
resulted in. The "NOTICE" does not involve any personal injuries.
2 Safety Precautions
2.1 Safety Symbols
This product contains the following symbols, please pay attention to identifying.
Symbols
Description
Observe enclosed documentation
Danger.
Risk of electric shock!
Danger of high voltages.
Danger to life due to high voltages in the Energy storage system
Hot surface
CE certification
Do not touch the product in 5mins after shutdown
Comply with RoHS standard
The Energy storage system should not be disposed together with the household
waste.

File version: V1.0
Page 5of 33
2.2 General Safety
2.2.1 Important Notice
Before installing, operating and maintaining the device, please read this Manual first and follow the symbols on the
device and all the safety precautions in this Manual.
The matters indicated with "DANGER", "CAUTION", "ATTENTION" and "NOTICE" in this Manual do not
represent all the safety matters to be observed, but are only the supplements to all the safety precautions. The Company will
not be liable for any violation of general safety operating requirements, or any violation of safety standards for the design,
production and use of the device. The device must be used in an environment that meets the requirements of the design
specifications. Otherwise, the device may fail, and the abnormal device function or component damage, personal safety
accident, and property loss arising from this are not covered within the quality assurance scope of the device. When
installing, operating, and maintaining the device, the local laws, regulations, and codes shall be followed. The safety
precautions in this Manual are only supplements to local laws, regulations, and codes. The Company shall not be liable for
any of the following circumstances.
● The device is not run under the conditions of operating described in this Manual.
● The installation and operating environment is beyond the requirements of relevant international or national standards.
● The product is disassembled or changed, or the software code is modified without authorization.
● The operation instructions and safety warnings related with the product and in the documents are notfollowed.
● Damage of the device is caused by abnormal natural environment (force majeure, such as earthquake, fire, and
storm).
● Transportation damage is caused during customer's own transportation.
● The storage condition does not meet the requirements of the product related documents and causes damage.
2.2.2 General Requirements
DANGER!
Operating when the power is on is strictly prohibited during installation.
DANGER!
It is strictly prohibited to install, use, and operate any outdoor equipment or cables (including but not
limited to transporting equipment, operating equipment and cables, plugging and removing signal ports
connected to the outdoor, working at altitude, and outdoor installation) in severe weather, such as thunder,
rain, snow, and gale level 6.
DANGER!
In case of any fire, evacuate the building or equipment area and press the fire alarm bell or dial the fire call.
Under any circumstances, re-entry into a burning building is strictly prohibited.
CAUTION
Under no circumstances should the structure and installation sequence of the device be changed without the
manufacturer's permission.

File version: V1.0
Page 6of 33
CAUTION
The battery terminal components shall not be affected during transportation. And, the battery terminal bolts
shall not be lifted or transported.
ATTENTION
It is strictly prohibited to alter, damage or block the marks and nameplates on the device.
ATTENTION
The composition and working principle of the entire photovoltaic power generation system, as well as the
relevant standards of the country/region where the project is located shall be known fully.
NOTICE
After the device is installed, the empty packing materials, such as cartons, foam, plastics, and cable ties,
shall be removed from the device area.
2.2.3 Personnel Safety
● When operating the device, appropriate personal protective equipment shall be worn. If any fault that may lead to
personal injury or damage of the device is found, immediately terminate the operation, report to the responsible
person, and take effective protective measures.
● Before using any tools, learn the correct method of using the tool to avoid injuries and damage of the device.
● When the device is running, the temperature of the case is high, which may cause burns. Therefore, do not touch the
case.
● In order to ensure personal safety and normal use, reliable grounding should be carried out before use.
● Do not open or damage the battery. The electrolyte released is harmful to skin and eyes, so avoid touch it.
● Do not place irrelevant items on the top of the device or insert them into any part of the device.
● Do not place flammable items around the device.
● Never place the battery in the fire to avoid explosion and prevent the personal safety from being endangered.
● Do not place the battery module in water or other liquids.
● Do not short-circuit the battery terminals, because short-circuiting of the battery may cause combustion.
● The battery may pose a risk of causing electric shocks and large short-circuit currents. When using the battery, the
following precautions should be paid attention to:
a) The metal objects, such as watch and rings, shall be removed.
b) Tools with insulated handles should be used.
c) Rubber gloves and shoes should be worn.
d) The charging power supply shall be disconnected before connecting or disconnecting terminals of the battery.
e) Check whether the battery is accidentally grounded. If the battery is accidentally grounded, remove the power
supply from the ground.

File version: V1.0
Page 7of 33
● Do not clean the internal and external electrical components of the cabinet with water or detergent.
● Do not stand, lean or sit on the device.
● Do not damage any modules of the device.
2.2.4 Personnel Requirements
● The personnel in charge of installation and maintenance must be strictly trained to understand all safety precautions
and master proper operation methods.
● Only qualified professionals or trained personnel are allowed to install, operate and maintain the device.
● The personnel who operate the device, including the operators, trained personnel and professionals, must have
special operation qualifications required by the local country, such as high voltage operation, working high above
the ground, and special equipment operation qualification.
● The replacement of device or components (including software) must be carried out by professionals or authorized
personnel.
2.3 Electrical Safety
2.3.1 General Requirements
Before carrying out electrical connections, ensure that the device is not damaged,
or an electric shock or fire may occur.
Never install or remove any power cables when the power is on. The electric arcs or sparks
may be generated at the moment when the power cable contacts with the conductor, which
may cause fire or personal injuries.
● All the electrical connections must meet the electrical standards of the country/region where the project islocated.
● The cables prepared by users themselves shall comply with local laws and regulations.
● Special insulating tools should be used in high-voltage operations.
● Before connecting the power cord, ensure that the label identification on the power cord iscorrect.
● Operations on the device are allowed only five minutes after the device is completely powered off.
● The insulation layer of the cable may be aged or damaged when the cable is used in a high temperature environment.
Therefore, the distance between the cable and the heat source must be at least 30mm.
● Cables of the same type should be bundled together. Whereas, the cables of different types should be routed at least
30mm apart, and shall not be wrapped together or crossed.
DANGER!
DANGER!

File version: V1.0
Page 8of 33
2.3.2 Grounding Requirements
● When installing the device to be grounded, the protective grounding wire must be installed first; when removing the
device, the protective grounding wire must be removed at last.
● It is forbidden to destroy the grounding conductor.
● It is forbidden to operate the device without a grounding conductor installed.
● The device shall be permanently connected to the protective grounding wire. Before operating the device, electrical
connection of the device shall be checked to ensure that the device is reliably grounded.
2.4 Installation Environment Requirements
● This product is for indoor use only, and is strictly prohibited to be used in outdoor environment.
● Do not install or use this product in an environment where the temperature is lower than -10 ℃or higher than 50 ℃.
● It should be installed in a dry and well-ventilated environment to ensure good heat dissipation performance.
● The product can be installed at a maximum altitude of 2,000m.
● The installation position should be away from the fire source.
● The product should be installed and used away from children and animals.
● The installation position should be far away from water sources, such as faucets, sewer pipes, and sprinklers, to
avoid entering of water.
● The device should be placed on a firm and flat supporting surface.
● Do not place any inflammable or explosive items around the device.
● When the device is running, do not block the ventilation vent or heat dissipation system to prevent fire caused by
high temperature.
The operation and service life of the energy storage is related to the operating temperature.
The energy storage should be installed at a temperature equal to or better than the ambient
temperature.
CAUTION

File version: V1.0
Page 9of 33
3 Product Introduction
3.1 Brief Introduction to Product
PowerCube P5A is a new generation of household energy storage system with two output specifications of 220V and
110V, which can meet the diversified needs of global users. The PowerCube P5A energy storage system adopts a modular
design, including power modules and battery expansion modules, so it can be easily combined into a system of any capacity
required by the user.
The lithium iron phosphate batteries with high performance and long service life are used in the energy storage module.
Meanwhile, the modular structure design is adopted. Each energy storage module is internally integrated with the intelligent
BMS system, which can be easily expanded and can be combined into 80Kwh battery pack at most.
The typical topological diagram for application of the system is as follows:

File version: V1.0
Page 10 of 33
3.2 Description of Energy Storage Capacity
PowerCube P5A series energy storage system supports the capacity expansion with up to six energy storage modules.
The voltage of a single battery is 48V and the capacity is 100Ah.
3.2.1 Energy Storage Battery Module Communication description
RS232
The communication BMS can communicate with the upper computer through RS232 interface, so that various
information of the battery can be monitored through the upper computer, including battery voltage, current,
temperature, status and battery production information. The default baud rate is 9600bps.
CAN communication
CAN communication, the default communication rate is 250K.
RS485 communication
5KWH
10KWH
15KWH
20KWH
25KWH
30KWH

File version: V1.0
Page 11 of 33
With dual RS485 interface, you can view the pack information. The default baud rate is 9600bps. If it is necessary to
communicate with the monitoring equipment through RS485, the monitoring equipment, as the host, polls the data
according to the address。
①
Positive
⑩
RS485/RS485
②
Negative
○
11
(LED)RUN
③
ON/OFF
○
12
(LED)ON/OFF
④
RST
○
13
(LED)ALM
⑤
Address
○
14
(LED)CAPACITY
⑥
Dry Contacts
○
15
Ground wire
⑦
RS485
○
16
MENU
ESC
⑧
CAN
ENTER
DOWN
⑨
RS232
○
17
LCD screen
○
17
②
①
○
15
○
16
③
○
14
○
12
○
11
○
13
④
⑤
⑥
⑦
⑧
⑨
⑩

File version: V1.0
Page 12 of 33
3.2.2 Interface definition
RS232 Interface
RS485 and CAN Interface
RS485 and RS485 Interface（Battery parallel communication）
3.3 Monitoring
3.3.1 The software runs on PC and its compatible computer and uses Windows operating system. The system environment
requires the support of Microsoft. Net Framework version 2.0 or above. Please confirm that it has been installed before use. The
installation is as follows:
1. Download Microsoft version of Microsoft. Net framework
RS232-- adopts 6P6C vertical RJ11 socket.
RJ11 pin
Definition
description
2
NC
3
TX（Veneer）
4
RX（Veneer）
5
GND
RS485-- adopts 8P8C vertical RJ45 socket
CAN-- adopts 8P8C vertical RJ45 socket
RJ45 pin
Definition
description
RJ45 pin
Definition
description
1、8
RS485-B1
1、2、3、4、5
NC
2、7
RS485-A1
6
CANL
3、6
GND
7
CANH
4、5
NC
8
GND
RS485-- adopts 8P8C vertical RJ45 socket
RS485-- adopts 8P8C vertical RJ45 socket
RJ45 pin
Definition
description
RJ45 pin
Definition
description
1、8
RS485-B
1、8
RS485-B
2、7
RS485-A
2、7
RS485-A
3、6
GND
3、6
GND
4、5
NC
4、5
NC

File version: V1.0
Page 13 of 33
2.Double click the downloaded program to install it (the installation steps of different versions are different. Please refer
to the official instructions of Microsoft for installation)
3.The software does not need to be installed independently. As long as the environment meets the requirements, double-
click the Bmstools v1.22. icon to run it. After running, the main interface of the software is displayed (see Figure 1-2)
Figure 1-1
Figure 1-2（Software main interface）
4.After opening the main interface (see Figure 1-2), the software will automatically search all existing serial ports. If an
effective serial port is found, it will automatically connect the serial port and communicate, and read battery information,
temperature information, unit voltage, system status, alarm status, protection status, fault status and other battery
parameters in real time.

File version: V1.0
Page 14 of 33
3.4 Interface introduction
Figure 1-3（Software main interface）
Description of main controls ( Figure 1-3)
NO
Explain
1
Serial port: you can select the drop-down item to select the serial port to communicate.
(Note: available when the serial port is not opened)
2
Address: read-only value, the currently read BMS address value
3
Read only value, the total number of batteries read by the host computer from the BMS
board (when applied to multiple computers in parallel, battery data is obtained from the
main battery)
4
Baud rate: you can select the drop-down item to select the baud rate of communication.
(Note: available when the serial port is not opened)
5
Interval (seconds): optional. The interval between the upper computer reading data from
the BMS board
6
Open serial port: alternate function buttons to open or close the serial port
7
Start monitoring: alternate function buttons to start or stop monitoring. The time
frequency of reading data during monitoring is the time interval set in 5
8
System status: when a system status occurs, the text of the item is blue. Gray indicates
no occurrence
9
Battery pack serial number: data key, which is the serial number of the battery pack. The
battery pack being read and presented on the current interface is displayed in white
words on a blue background

File version: V1.0
Page 15 of 33
Open serial port and start monitoring
First set the baud rate and serial port on the upper computer, then connect the BMS board with the RS232 / RS485
communication line, and then insert the USB interface of the communication line into the USB port of the computer. At
this time, the upper computer will automatically search the serial port and start monitoring. If the automatic search fails,
you need to manually select the newly connected serial port on the upper computer, then click button to
open the serial port, and then click button to start monitoring.
【Multi Monitoring】
Check【Display】at the bottom left to display the monitored real-time data in the data area. Note: there is data only
when the monitoring is started normally. If there is no data, please check whether the monitoring is normal.
Click button to clear the real-time data on the interface.
10
Version: software version number of BMS
11
Bar code of BMS board
12
Bar code of PACK board
13
Communication status: the communication status between the software and BMS board.
It is valid when monitoring is started and communication is normal
14
Administrator password column: some setting functions can only be used after entering
the administrator password, such as some functions in system settings. (Note: when the
password is entered correctly, the input box will turn green, and you have obtained the
permission of the administrator)
Open
Clear Screen
Start Monitor

File version: V1.0
Page 16 of 33
Click to save the existing data on the interface to the local.
Check【Save to data base】to automatically save each real-time data. The saved path is in the folder named "data"
under the program root directory by default, and is stored according to the battery pack serial number by date.
【Memory Information】
1. The interface
Click the main interface TAB [Memory Information] to enter the interface, as shown in Figure 3-1
Figure 3-1
2. Read/write the BMS time
Click the upper right button to read BMS time.
Click the upper right button to write to BMS time.
3. Storage Settings
Read Record: Click to read ti the BMS. On the right.
Pause/Continue: Click reading while reading records, and click again to continue reading.
Save records: Click the button to save the records that have been read to the interface locally.
Delete Record: Click the button to delete the stored record in the BMS.
Export screen data
Read BMS Time
Write To BMS
Read
Pause
Save as
Delete

File version: V1.0
Page 17 of 33
【Parameter Setting】
1. The interface
Click the main interface TAB [Parameter Information] to enter the interface. When entering the interface, the default value
of the interface is empty. As shown in figure 4-1
figure 4-1
Function of 2.
Read parameters: Click the button to read all parameters of the interface.
Write parameters: Click the button to write parameters. This operation requires administrator privileges.
Restore default parameters: Click the button to restore all interface parameters to default parameters.
The default parameters come from the default parameters in the BMS. This operation requires administrator privileges.
Import parameters: click the button to read the data from the local file into this interface. Note: Data is only
read to the interface, not written to the BMS, if you need to write, please perform write operation.
Export parameters: Click the button to save the data on the interface as an XML file.
Real All
Write all
Resent Setting
Import
Export

File version: V1.0
Page 18 of 33
【System configuration】
1. Interface
Click the main interface TAB [System Configuration] to enter the interface, as shown in Figure 5-1
Figure 5-1
2.Function
Perform operations as prompted. Some functions require administrator rights.
【Export Data】

File version: V1.0
Page 19 of 33
【Change Language】
1. Interface
Click the main interface TAB [Switch Language] to enter the interface, as shown in Figure 6-1
Figure 6-1
4 Application Scenarios and Settings
4.1 Application Scenarios
4.1.1 Application Scenarios with Only Mains Power but No Photovoltaic
When the mains is normal, it charges the battery and supplies power to the loads.
When the mains is disconnected or stops working, the battery supplies power to the load through the power module.

File version: V1.0
Page 20 of 33
4.1.2 Application Scenarios with Only Photovoltaic but No Mains Power
During the day, the photovoltaic directly supplies power to the loads while charging the battery.
At night, the battery supplies power to the loads through the power module.
4.1.3 Complete Application Scenarios
During the day, the mains and photovoltaic simultaneously charge the battery and supply power to the loads.