Dyness POWERCUBE Series User manual

POWERCUBE
User Manual

POWERCUBE User Manual
I
Content
Statement of Law .....................................................................................................................................1
Safety Precautions....................................................................................................................................2
Preface......................................................................................................................................................3
1 Introduction..........................................................................................................................................1
1.1 Brief Introduction..........................................................................................................................1
1.2 Product Properties........................................................................................................................1
1.3 Product identity definition............................................................................................................1
2 Product Specification............................................................................................................................3
2.1 Size and Weight ............................................................................................................................3
2.2 Performance Parameter ...............................................................................................................3
2.3 Interface Definition.......................................................................................................................3
2.4 Battery Management System(BMS)..............................................................................................4
2.4.1 Voltage Protection ................................................................................................................4
2.4.2 Current Protection ................................................................................................................4
2.4.3 Temperature Protection .......................................................................................................5
2.4.4 Other Protection ...................................................................................................................5
3 Installation and Configuration ..............................................................................................................6
3.1 Ready for installation....................................................................................................................6
3.1.1 Environmental requirements ................................................................................................6
3.1.2 Tools and data.......................................................................................................................6
3.1.3 Technical preparation ...........................................................................................................7
3.1.4 Open the box to have inspection ..........................................................................................7
3.1.5 Engineering coordination......................................................................................................9
3.2 Equipment installation..................................................................................................................9
3.2.1 Installation preparation .........................................................................................................9
3.2.2 Mechanical installation ..........................................................................................................9
3.2.3 Electrical installation ...........................................................................................................10
4 Use, maintenance and troubleshooting .............................................................................................14
4.1 Battery system usage and operation instructions ......................................................................14
4.2 Alarm description and processing...............................................................................................14
4.3 Analysis and treatment of common faults..................................................................................15

POWERCUBE User Manual
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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.net/
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

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Safety Precautions
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).

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Preface
Manual declaration
Powercube series energy storage system is composed of several 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 4Box, 5Box, and 6Box in the Powercube series. It details the basic
structure, parameters, installation, and operation and maintenance of the equipment.

POWERCUBE User Manual
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1 Introduction
1.1 Brief Introduction
B4874 lithium iron phosphate battery system is a standard battery system unit, which can
connect to 14.2KWh, 17.7KWh and 21.3KWh in 4, 5 and 6 B4874 respectively. Users can
choose 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, -20oC ~ +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
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.

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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
Product
Product Series
Nominal
Voltage
Nominal
Capacity
Dimension
(mm)
Weight
(kg)
IP
Level
Powercube
Powercube-4BOX
DC48V
296Ah
492×600×862
≈183
IP65
Powercube
Powercube-5BOX
DC48V
370Ah
492×600×862
≈215
IP65
Powercube
Powercube-6BOX
DC48V
444Ah
492×600×1000
≈254
IP65
2.2 Performance Parameter
Table 2-2 Powercube series performance parameter
Item
Powercube-4Box
Powercube-5Box
Powercube-6Box
Nominal Voltage(V)
48
48
48
Work Voltage Range(V)
40.5~54
40.5~54
40.5~54
Nominal Capacity(Ah)
296
370
444
Nominal Energy(kWh)
14.2
17.76
21.3
Nominal Power(kW)
4.3
5.3
6.2
Max Power(kW)
14.2
17.76
21.3
3S Peak Power(kW)
14.2
17.76
21.3
3S Peak Current(A)
296
370
444
Charging Current(A)
90
110
130
Discharge Current(A)
90
110
130
2.3 Interface Definition
This section elaborates on interface functions of the back interface of the device.
Figure2-3The sketch of back interface of Powercube.

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Table 2-3 Interface Definition
Item
Name
Definition
1
RJ45 network cable
connector
Reserve
2
RJ45 network cable
connector
CAN/RS485 communication interface (Factory default
CAN communication mode)
3
Total negative cable
waterproof connector
The battery DC output negative pole
4
Total positive cable
waterproof connector
The battery DC output positive pole
2.4Battery 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, battery 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：
Device stops charging when charging current exceeds the protection value.
1
4
3
2

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Protection is over after rated time delaying.
Over Current Protection in Discharging：
Device stops discharging when discharging current exceeds the protection value.
Protection is over after rated time delaying.
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 -20℃~+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 30 seconds.
Caution
The short circuit protection function cannot be activated when a short circuit occurs while the battery
is turned on.
Self-Shutdown：
When device connects no external loads for over 24 hours, device will dormant standby
automatically.
Caution
Battery’s maximum discharging current should be more than load’s maximum working current.