Dyness POWERCUBE Series User manual

POWERCUBE
User Manual

POWERCUBE User Manual
I
Content
Statement of Law ..................................................................................................................................... 1
Safety Precautions.................................................................................................................................... 2
Preface...................................................................................................................................................... 3
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....................................................................................................................... 6
2.3.1 DIP switch definition and description .................................................................................... 8
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 ....................................................................................................... 15
3.2.2 Mechanical installation ........................................................................................................ 16
3.2.3 Electrical installation ........................................................................................................... 19
4 Use, maintenance and troubleshooting ............................................................................................. 25
4.1 Battery system usage and operation instructions ...................................................................... 25
4.2 Alarm description and processing............................................................................................... 26
4.3 Analysis and treatment of common faults.................................................................................. 26

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
1.1 2019.10.24 Add new product model

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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).
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 operate. Contact the DYNESS authorized

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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 4Box, 5Box, 6Box and 7Box in the 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, -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
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
Product Series Dimension
(mm)
Module
type
Nominal
Voltage
Nominal
Capacity Weight IP Level
Powercube-4BOX 492×600×862
B4850
DC48V
200Ah
≈151kg
IP65
B3 DC48V 300Ah ≈
183 kg
IP65
Powercube-5BOX 492×600×862
B4850
DC48V
250Ah
≈176 kg
IP65
B3 DC48V 375Ah ≈
218 kg
IP65
Powercube-6BOX 492×600×1000
B4850
DC48V
300Ah
≈201 kg
IP65
B3 DC48V 450Ah ≈
253 kg
IP65
Powercube-7BOX 492×600×1138
B4850
DC48V
350Ah
≈226kg
IP65
B3 DC48V 525Ah ≈
288 kg
IP65
2.2 Performance Parameter
Table 2-2 Powercube series performance parameter
Product
Series
Powercube-4Box Powercube-5Box Powercube-6Box Powercube-7Box
B4850 B3 B4850 B3 B4850 B3 B4850 B3
Nominal
Voltage(V) 48 48 48 48 48 48 48 48
Work Voltage
Range(V) 42~54 42~54 42~54 42~54 42~54 42~54 42~54 42~54
Nominal
Capacity(Ah) 200 300 250 375 300 450 350 525
Nominal
Energy(kWh) 9.6 14.4 12 18.0 14.4 21.6 16.8 25.2
Nominal
Power(kW) 2.9 4.3 3.6 5.3 4.3 6.2 5.0 7.5
Max
Power(kW) 9.6 9.6 12 12 14.4 14.4 16.8 16.8
1s Peak
Power(kW) 10.56 10.56 13.2 13.2 15.84 15.84 18.48 18.48
1s Peak
Current(A) 220 220 275 275 330 330 385 385
Charging
Current(A) 100 148 125 185 150 222 175 259
Discharge
Current(A) 100 148 125 185 150 222 175 259
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.

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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 4RJ45 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.
Figure2-2 The sketch of interface.
1
2
3
4
5
6
7
1
4
3
2
5
6
8
10
9
11

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Table 2-4 Interface Definition
Item Name Definition
1 Power switch
OFF/ON,
must be in the “ON” state when in use
2
Ground
connection point
Shell ground connection
3 Positive socket Battery output positive or parallel positive line
4Negative socket Battery output negative or parallel negative line
5
SW (battery
wake/sleep
switch)
When the “OFF/ON” switch button is in the ON state, press
and hold this button for 3 seconds to put the battery into the
power-on or sleep state.
6 SOC
The number of green lights on shows the remaining battery
power. See Table 2-3 for details.
7 ALM
Red light flashing when an alarm occurs, red light always on
during protection status. After the condition of trigger
protection is released, it can be automatically closed.
8 RUN
Green light flashing during standby and charging mode.
Green light always on when discharging.
9 CAN/485
Communication cascade port, support CAN/ RS485
communication (factory default CAN communication)
10 DRY CONTACT /
11 ADD DIP switch
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
Baud rate selection
ON OFF
CAN: 250K,485: 115200 CAN: 500K,485: 9600
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

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1. If the host is the latest B4850 battery with DIP switch:
(1) The communication cable that communicates with
the inverter should use the correct one.
(2) After the battery module parallel cable, cascading
cable and communication cable with GDW、Solis、
LUX、Sofar、DEYE、VICTRON、IMEON、
Infinisolar,Sungrow,SMA,RENAC,DELIOS、SAJ(CAN
Comm) inverters are connected, all B4850 batteries
should not be turned on first, be sure to put the host DIP
switch "# 3" to the "ON" position (to the top), then turn
on all the B4850 batteries.
(3) If the battery module is in communication with the
inverters of Growatt hybrid(CAN comm)、GMDE、
Saj(485 comm)、
Axpret-king turn the host DIP switch "#2" to "ON"
position.
(4) If the battery module is in communication with the
GROWATT-SPF(off-grid) inverter by 485 communication,
turn the host DIP switch "#2" and "#3" to "ON".
(5) The DIP switch of the slave does not need to be
changed.
(6) If the energy storage system has only one B4850, 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 >.
2. If the host is a B4850 battery
module without the DIP switch:
(1) The communication cable that
communicates with the inverter
should use the correct one which
is supplied by DYNESS.
(2) After the battery module
parallel cable, cascade cable and
the inverter communication cable
are connected, turn on all B4850
batteries.
(3)Before connecting with
inverter,please ensure the no-dip
battery firmware vertion support
yours inverter.
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…

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Slave
modules
Host
module
DIP Switch mode 3
ADD: 0110
DIP Switch mode 1
ADD: 0010
DIP Switch mode 2
ADD: 0100
DIP Switch mode 4
ADD: 0000

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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 -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 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: -20 oC ~ +55 oC
•Charging temperature range is 0oC~+55 oC,
•Discharging temperature range is -20 oC ~+55 oC
Storage temperature: -10 oC ~ +35 oC
Relative humidity: 5% ~ 85%RH
Elevation: no more than 4000m
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.
In the process of unpacking, handle with care and protect the surface coating of the
object.

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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
4Box
5Box
6Box
7Box
Cabinet
492×600×862 1 1
492×600×1000 1
492×600×1138 1
Battery module
B4850: 8V50Ah
384
×
481
×
90
4 5 6 7
B3: 48V745h 384
×
481×130
Parallel cable-
positive
Red
/25mm2/L215mm 3 4 5 6
Parallel cable-
negative
Black
/25mm2/L215mm 3 4 5 6
Power cable-
positive1
Red
/25mm2/L3200mm 1 1
Red
/25mm2/L3400mm 1 1
Power cable-
positive2
Red
/25mm2/L2000mm 1 1 1 1
Power cable-
negative1
Black
/25mm2/L2000mm 1 1 1 1
Power cable-
negative2
Black
/25mm2/L3000mm 1 1 1 1
Communication
parallel cable
Black/250mm/
Double RJ45 plug 3 4 5 6
Communication
cable-to
inverter1
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.
3.2 Equipment installation
Table 3-2 Installation steps
Step1 Installation
preparation
Confirm that the ON/OFF switch on the front panel of each
B4874 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 inverter2 to the
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.
Communication
cable-to
inverter2
Black/L2000mm/
Double RJ45 plug 1 1 1 1

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3.2.2 Mechanical installation
Case1: If the normal power of inverter is ≤5kW, Mechanical installation shown as follows:
Figure3-1
Table 3-3 Interface 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)
1. Fix the Powercube cabinet to the mounting
position and remove the front cover.
Pass the total positive cable and the total
negative cable (Power cable- positive1/ Power
cable-negative1) through the waterproof
connector on the back of the cabinet, and
insert the external CAN cable(Communication
cable-to inverter2) into the RJ45 network
cable connector(Interface 4).
1
2
3
4
5
6

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Item Name Definition
Interface 5
Power cable- positive
waterproof connector
The battery DC output positive pole
Interface 6
Power cable- positive
waterproof connector
Reserve
Figure3-2
Figure3-3
2. Place the battery unit on the cabinet
bracket as shown in the figure and push it
into the cabinet to the installation position.
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 Figure3-3.

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Case 2: If the normal power of inverter is > 5kW,Mechanical installation shown as follows：
Figure3-4
Table 3-4 Interface 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
1. Fix the Powercube cabinet to the mounting
position and remove the front cover.
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).
1
2
3
4
5
6