Dyness DL5.0C User manual

Battery Module
DL5.0C
51.2V/100Ah
DL5.0C
USER MANUAL
USER MANUAL
File version-20230330-V1-EN information might be subject to change without notice during product improving.

DL5.0C User Manual
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Contents
Statement of Law..........................................................................................................................1
Revision History ........................................................................................................................1
Safety Precautions .......................................................................................................................2
Preface ............................................................................................................................................. 3
Manual declaration .................................................................................................................3
1 Introduction ................................................................................................................................ 4
Brief Introduction .................................................................................................................... 4
Product Properties ..................................................................................................................4
Product Identity Definition..................................................................................................5
2 Product Specification ..............................................................................................................6
Size and Weight .......................................................................................................................6
Performance Parameter........................................................................................................6
Interface Definition .................................................................................................................6
Battery Management System(BMS) ................................................................................ 11
3 Installation and Configuration .......................................................................................... 13
Preparation for installation ................................................................................................13
Equipment Installation ........................................................................................................ 16
4 Use, Maintenance and Troubleshooting...................................................................... 26
Battery system usage and operation instructions ................................................... 26
Alarm description and processing ................................................................................. 26
Analysis and treatment of common faults ..................................................................27

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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/
Please note that the product can be modified without prior notice.
Revision History
Revision NO.
Revision Date
Revision Reason
1.0
2023.02.28
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
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).

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Preface
Manual declaration
DL5.0C 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
Brief Introduction
DL5.0C lithium iron phosphate battery system is a standard battery system unit,
customers can choose a certain number of DL5.0C 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.
Product Properties
DL5.0C 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, -20oC~ +55oC, circulation
span and discharging performance are well under high temperature.
Less volume, lighter weight.

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Product Identity Definition
Table 1-1 Symbol Definition
Battery voltage is higher than safe voltage, direct contact
with electric shock hazard.
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.
Figure 1-1 Battery Module Label

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2 Product Specification
Size and Weight
Table 2-1 DL5.0C Device size
Product
Nominal
Voltage
Nominal
Capacity
Dimension
Weight
DL5.0C
DC51.2V
100Ah
558×545×150mm
54kg
Performance Parameter
Table 2-2 DL5.0C performance parameter
Item
Parameter value
Nominal Voltage(V)
51.2
Work Voltage Range(V)
44.8~57.6
Nominal Capacity(Ah)
100
Nominal Energy(kWh)
5.12
Recommended Charge/Discharge Current (A)
50
Max. Power Charge/Discharge Current (A)
75
Peak Power Charge/Discharge Current (A)
100 (15S)
Recommend Charge Voltage (Vdc)
56.5
Interface Definition
This section elaborates the interface functions of the front interface of the device.
Figure 2-1 The Sketch of Interface
1
2
3
4
5
6
7
8
9
10
11
12

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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
Table 2-4 DIP switch definition and description
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.
If the master is the latest DL5.0C battery with DIP switch:
1. The communication cable from the master CAN IN to the inverter comm port
should be the correct one.

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DIP Switch Description
2. When the battery works with GOODWE, Solis, LUX, Sofar, DEYE(Sunsynk),
VICTRON, IMEON, Sungrow, SMA, RENAC, DELIOS, SAJ(CAN Comm) before starting
the battery, you need to 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 Conext 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 to change.
7. If the energy storage system has only one DL5.0C, 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 1
Master Setting 2
Master Setting 3
Master Setting 4

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Figure 2-2 CAN/485 Interface Definition
Table 2-5 Pin Definition
Foot position
Color
Definition
PIN1
Orange/white
485B
PIN2
Orange
485A
PIN3
Green/white
Reserve
PIN4
Blue
EXT CANH
PIN5
Blue/white
EXT CANL
PIN6
Green
Reserve
PIN7
Brown/white
INT CANH
PIN8
Brown
INT CANL
PIN9
Orange/white
Reserve
PIN10
Orange
Reserve
PIN11
Green/white
Reserve
PIN12
Blue
Reserve
PIN13
Blue/white
Reserve
PIN14
Green
Reserve
PIN15
Brown/white
INT CANH
PIN16
Brown
INT CANL
Figure 2-3 COM Interface Definition
Front
Plug
Socket of communication port
CAN/485

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Table 2-6 COM Interface Definition
Foot position
Definition
PIN1
5V
PIN2
GND
PIN3
TXD
PIN4
RXD
PIN5
GND
PIN6
Reserve
Tips: Please pay attention of the communication com definition of inverter, in order to
avoid voltage in the port to affect communication.
Table 2-7 LED Status Indicators
Battery
Status
SOC(%)
LED1
LED2
LED3
LED4
LED5
ALM
RUN
Shutdown
/
off
off
off
off
off
off
off
Standby
80%≤SOC≤100%
●
●
●
●
●
off
Flashing
60%≤SOC＜80%
●
●
●
●
off
off
Flashing
40%≤SOC＜60%
●
●
●
off
off
off
Flashing
20%≤SOC＜40%
●
●
off
off
off
off
Flashing
0%＜SOC＜20%
●
off
off
off
off
off
Flashing
SOC=0
off
off
off
off
off
off
Flashing
Charging
80%≤SOC≤100%
●
●
●
●
Flashing
off
Flashing
60%≤SOC＜80%
●
●
●
Flashing
off
off
Flashing
40%≤SOC＜60%
●
●
Flashing
off
off
off
Flashing
20%≤SOC＜40%
●
Flashing
off
off
off
off
Flashing
0%＜SOC＜20%
Flashing
off
off
off
off
off
Flashing
SOC=0
Flashing
off
off
off
off
off
Flashing
Discharging
80%≤SOC≤100%
●
●
●
●
●
off
●
60%≤SOC＜80%
●
●
●
●
off
off
●
40%≤SOC＜60%
●
●
●
off
off
off
●
20%≤SOC＜40%
●
●
off
off
off
off
●
0%＜SOC＜20%
●
off
off
off
off
off
●
SOC=0
off
off
off
off
off
off
●
A special ALM light flashing state: when the communication between batteries is lost or
abnormal,all the lights from SOC to RUN of the master battery will flash together.
● means green light always on
● means red light always on
Flashing: means green light flashing or red light flashing

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Battery Management System(BMS)
Voltage Protection
Low Voltage Protection in Discharging:
When any battery cell voltage or total voltage is lower than the rated protection value
during discharging, the over-discharging protection is activated, and the battery buzzer
makes an alarm sound. Then battery system stops supplying power to the outside. When
the voltage of each cell back to rated return range, the protection is over.
Over Voltage Protection in Charging：
Battery will stops charging when total voltage or any battery cell voltage reaches the
rated protection value during charging stage. When total voltage or all cell back to rated
range, the protection is over.
Current Protection
Over Current Protection in Charging：
When the charge current＞90A, current limit protection mode is activated, current will be
limited to≤3A，protection is removed after rated time delaying 10S. Circulate like this
until the current is lower than 90A.
Over Current Protection in Discharging：
When the discharge current is higher than 100A, the battery buzzer alarms and the
system stops discharging after 15s. After protection, the discharging will restore in 60s
delay or immediately when there is charging current.
CAUTION
The buzzer sound alarm setting can be manually turned off on the background software,
and the factory default is on.
Temperature Protection
Low/Over temperature protection in charging：
When battery’s temperature is beyond range of 0oC~+55oCduring charging, temperature
protection is activated, device stops charging.
The protection is over when temperature back to rated working range.
Low/Over temperature protection in discharging：
When battery’s temperature is beyond range of -20oC~+55oC during discharging,
temperature protection is activated, device stops supplying power to the outside.
The protection is over when temperature back to rated working range.
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 60 seconds.
Self-Shutdown：

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When device connects no external loads and power supply and no external
communication for over 72 hours, device will dormant standby automatically.
CAUTION
Battery’s maximum discharging current should be more than load’s maximum working
current.

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3 Installation and Configuration
Preparation 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 51.2V
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.
• The following protective items must be worn when installing the battery system:
Figure 3-1 Safety Gear
Environmental requirements
Working temperature: -20oC ~+55oC
Charging temperature range is 0oC~+55oC,
Discharging temperature range is -20oC ~+55oC
Storage temperature: -10oC~+35oC
Relative humidity: 5% ~ 85%RH
Elevation: no more than 4000m
Operating environment: Indoor installation, sites avoid the sun and no wind, no
conductive dust and corrosive gas.
And the following conditions are met:
• Installation location should be away from the sea to avoid brine and high humidity
environment.
• The ground for product arrangement shall be flat and level.
• No flammable explosive materials near the installation site.
• The optimal ambient temperature is 15oC~30oC
• Keep away from dust and messy zones
Tools and data
Insulated Gloves
Safety Goggles
Safety Shoes

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Tools and meters that may be used are shown in Figure 3-2 Installation Tools.
Figure 3-2 Installation Tools
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 higher 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 product, 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 materials are placed beside the
battery.
Power Cable Clamp
Pen
Phillips Screwdriver Bit Flat-Head Screwdriver
Wire Stripper
Crimping Pliers
Wrench
Tape Measure
Hair Dryer
Cylinder Screwdriver
Torque Wrench
Drill

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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.
• 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.
Table 3-1 Packing List
Item
Specification
Quantity
Figure
Battery-DL5.0C
51.2V/100Ah
1
Parallel cable-
positive
Red
/4AWG/L250mm
1
Parallel cable-
negative
Black
/4AWG/L250mm
1
Communication
parallel cable
Black
/L500mm/Double
RJ45 plug
1
Communication
cable-to inverter
Black
/L2000mm /Double
RJ45 plug
1
Ground wire
L500mm,4mm²
1
User Manual
User manual
1
Screw
Screws M6
8
Expansion screw
Expansion screw
8

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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.
• Mounting space and bearing capacity.
• Make sure that the battery has enough room to install, and that the brackets have
enough load capacity.
• Wiring.
• Make sure the power line and ground wire are reasonable. Not easy to short-circuit,
water and corrosion.
Equipment Installation
Table 3-2 Installation steps
Step 1 Installation preparation
Confirm that the ON/OFF switch on the front panel of DL5.0C unit is in the “OFF” state to
ensure no live operation.
Step 2 Mechanical installation
1. Battery placement position determination
2. Battery module installation
Step 3 Electrical installation
1. Ground cable installation
2. Battery module parallel cable installation
cardboard
Positioning
cardboard
1
Battery bracket
Battery bracket
1
Fixing bracket
Fixing bracket
1
OFF
Grounding

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3. Parallel communication cable connection
Step 4 Battery system self-test
1. Turn the ON/OFF switch to the "ON" state.
2. Press SW button 3secs to wake up battery.
3. Check the system output voltage and led status
4. Shut down the system
Step 5 Connecting inverter
1. Connect total positive & total negative cable of the battery system to the inverter.
2. Battery module total positive cable installation
3. Battery module total negative cable installation
4. Connect the communication cable from the master CAN IN to the inverter
5. Turn on the Power switch and wake up system by SW button.
6. Close the DC breaker between inverter and battery.
7. Turn on the inverter and check the communication between inverter and battery
positive parallel cable
negative parallel cable
CAN/485
SW (Battery sleep switch)
ON
Press SW button 3secs

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system.
Installation Preparation
1. Prepare equipment and tools for installation.
2. Check the DL5.0C unit and confirm that the ON/OFF switch is in the "OFF" state to
ensure the device is shut off.
Mechanical Installation
Flexible Brackets Installation(Up to six layers):
1. DL5.0C brackets The DL5.0C bracket is shown before installation as shown in
Figure3-3.
Figure 3-3
2. Place the DL5.0C and brackets as shown in the figure3-3, and insert the DL5.0C
into the brackets. Each bracket is connected to the module by four screws, two
screws on one side. As shown in Figure3-4.
Figure 3-4
3. Install another module as the same method,don’t tighten the screw first, put it on
top of the first battery,as shown in Figure3-5.
Figure 3-5