Dyness B51100 User manual

B51100
User Manual

B51100 User Manual
1
Contents
Statement of Law..........................................................................................................
2
Safety Precautions......................................................................................................... 3
Preface........................................................................................................................... 4
1 Introduction...............................................................................................................
5
1.1 Brief Introduction........................................................................................................... 5
1.2 Product Properties..........................................................................................................5
2 Product Specification.................................................................................................
7
2.1 Size and Weight.............................................................................................................. 7
2.2 Performance Parameter.................................................................................................7
2.3 Interface Definition........................................................................................................ 7
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...................................................................................................... 12
2.4.4 Other Protection.................................................................................................................. 12
3 Installation and Configuration................................................................................
13
3.1 Preparation for installation..........................................................................................13
3.1.1 Environmental requirements............................................................................................... 13
3.1.2 Tools and data...................................................................................................................... 13
3.1.3 Technical preparation.......................................................................................................... 14
3.1.4 Unpacking inspection........................................................................................................... 14
3.1.5 Engineering coordination.....................................................................................................16
3.2 Equipment installation.................................................................................................16
3.2.1 Installation preparation........................................................................................................ 16
3.2.2 Mechanical installation......................................................................................................... 17
3.2.3 Electrical installation............................................................................................................ 17
3.2.4 Battery parameter settings on the inverter.........................................................................19
3.2.5 Register on the website after installation............................................................................19
4 Use, maintenance and troubleshooting................................................................. 20
4.1 Battery system usage and operation instructions...................................................... 20
4.2 Alarm description and processing............................................................................... 20
4.3 Analysis and treatment of common faults..................................................................21

B51100 User Manual
2
Statement of Law
Copyright of this document belongs to Daqin New Energy Tech (Taizhou) 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 Daqin New Energy Tech
(Taizhou) 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 Daqin New Energy Tech (Taizhou)
Co., Ltd when the product or technology is updated.
Web URL：http://www.dyness-tech.com.cn
Please note that the product can be modified without prior notice.
Revision History
Revision NO.
Revision Date
Revision Reason
1.0
2021.12.01
First Published

B51100 User Manual
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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 on
the same device.
Please avoid any form of damage to battery, especially stab, hit, trample or strike.
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 explosion.
For your safety, please do not arbitrarily dismantle any component in any circumstances.
The maintenance must be implemented by authorized technical personnel or our
company’s technical support. Device breakdown due to unauthorized operation will not be
covered under warranty.
Caution
Our products have been strictly inspected before shipment. Please contact us if you find any
abnormal phenomena such as device outer case bulging.
The product shall be grounded properly before use in order to ensure your safety.
To assure the proper use please make sure parameters among the relevant device are
compatible and matched.
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 product life span, please comply with the
operation environment instruction to ensure 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 fully discharged or over-discharging protection
mode is activated.
Formula of theoretical standby time: T=C/I (T is standby time, C is battery capacity, I is total
current of all loads).

B51100 User Manual
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Preface
Manual declaration
B51100 lithium iron phosphate battery energy storage system can provide energy storage for
photovoltaic power generation users through parallel combination. Our product can store
extra electricity into battery from photovoltaic power generation system in daytime and supply
stable power to user’s equipment as power backup at nighttime or any time when needed. It can
improve the efficiency of photovoltaic power generation and increase the electric power
efficiency by peak load shifting.
This user manual details the basic structure, parameters, basic procedures and methods of
installation and operation and maintenance of the equipment.

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1 Introduction
1.1 Brief Introduction
B51100 lithium iron phosphate battery system is a standard battery system unit, customers
can choose a certain number of B51100 according to their needs, by connecting parallel to
form a larger capacity battery pack, to meet the user's long-term power supply 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
B51100 energy storage product’s positive electrode materials are lithium iron phosphate,
battery cells are managed effectively by BMS with better performance, the system’s features
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.
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, -20℃~ +55℃, circulation
span and discharging performance are well under high temperature.
Less volume, lighter weight.
1.3 Product identity definition

B51100 User Manual
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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.
inflammable.
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.
Do not place near open flame or incinerate.
If catch fire, do not put out with water.
If catch fire, do not put out with dry powder fire
extinguisher.
Do not cut or spear with sharp objects.
This battery product meets European directive
requirements.
This battery product passed the TUV certification test.
Dangerous goods warning label on the top of the battery
module

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2 Product Specification
2.1 Size and Weight
Table 2-1 B51100 Device size
2.2 Performance Parameter
Table 2-2 B51100 performance parameter
Item
Parameter value
Nominal Voltage(V)
51.2
Nominal Capacity(Ah)
100
Nominal Energy(kWh)
5.12
Recommended Charge/Discharge Current (A)
50
Max. Power Charge/Discharge Current (A)
80
Peak Power Charge/Discharge Current (A)
100 (15S)
Charge Voltage (Vdc)
56.5
2.3 Interface Definition
This section elaborates the interface functions of the front interface of the device.
Figure2-1 The sketch of interface.
Product
Nominal
Voltage
Nominal
Capacity
Dimension
Weight
B51100
DC51.2V
100Ah
481×535×140mm
≈44kg

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Table 2-3 Interface Definition
Item
Name
Definition
1
Power switch
OFF/ON,
must be in the "ON" state when in use
2
Positive socket
Battery output positive or parallel positive line
3
ADD
DIP switch
4
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 off state.
5
SOC
The number of green lights shows the remaining power. Table
2-3 for details.
6
ALM
Red light flashing when an alarm occurs, red light always on
during protection status. After the condition of trigger
protection is relieved, it can be automatically closed.
7
RUN
Green light flashing during standby and charging mode.
Green light always on when discharging.
8
COM
Communication cascade port, support RS232
9
CAN/485
Communication cascade port, support CAN/ RS485
communication (factory default CAN communication)
10
DRY CONTACT
/
11
Negative socket
Battery output negative or parallel negative line
12
Grounding
Shell ground connection
2.3.1 DIP switch definition and description
Table 2-4 Interface Definition
DIP switch position (master communication protocol and baud rate selection)
#1
#2
#3
#4
Define different protocols；
Distinguish between master and slave
Baud rate selection
OFF：CAN: 500K,485: 9600
ON：CAN: 250K,485: 115200
DIP switch description:
When the batteries are connected in parallel, the host communicates with the slaves through
the CAN interface. The host summarizes the information of the entire battery system and
communicates with the inverter through CAN or 485.

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1. If the master is the latest B51100 battery with DIP switch:
(1) The communication cable from the master 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、Sungrow、SMA、RENAC、DELIOS、SAJ(CAN Comm) ,before starting the
battery,you need put the master DIP switch "# 3" to the "ON" position (to the top), then turn
on the batteries.
(3) If the battery communicates with the Axpert-king/VMIII/MAX,Infinisolar,Growatt
SPH/SPA(CAN comm)、GMDE, turn the master DIP switch "#2" to "ON" position.
(4) If the battery communicates with the Growatt SPF HVM-P/ES/WPV by RS485
communication, turn the master DIP switch "#2" and "#3" to "ON".
(5) If the battery communicates with the Schneider Context Series, turn the master DIP switch
"#1" and "#3" to "ON".
(6) When you setup the master DIP as setting 1~4,all the slaves keep the DIP 0000,no need
change.
(7) If the energy storage system has only one B51100, it is the master 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 >.
Master Setting 4
Master Setting 3
Master Setting 2
Master Setting 1