Darfon B09ULF User manual

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用户手册
Instruction Manual
48V/9.6kWh Battery System
Model Number: B09ULF
Version：V1.3
Darfon Electronics Corp. Ltd.

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Overview
Thank you for choosing the 48V/9.6KWh lithium battery system. The
system has innovative design and perfect quality management. It is safe,
stable, reliable and has a long service life. At the same time, the product is
easy to operate, easy to use, and has a series of perfect protection functions.
This manual focuses on the safe operation of the system. Please read this
manual carefully before proceeding. If you encounter any problems during the
operation of the device, please consult the corresponding instructions to solve
most problems in the installation and operation. Contact your dealer or supplier
if necessary.
Darfon Electronics Corp.
No.167,Shanying Rd.,Guishan Dist.,Taoyuan City 33341,Taiwan (R.O.C.)
TEL : [phone]
Fax : [phone]
Darfon America, CORP.
103a Pioneer Way
Mountain View, CA 94041
Office [phone]

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Safety Precautions
Unpacking
Test
Attention

If the product is found to be damaged or missing parts, it cannot
be installed, otherwise it may malfunction. If the packing list
does not match the physical name, please do not install and
contact the dealer in time.
Install
Danger
 Wiring work must be performed by electrical engineers,
otherwise there is danger of electric shock or damage to the
system.

Before wiring, make sure that the power is off, otherwise there is
danger of electric shock or fire.
 The installed cable must meet the requirements, and the power
distribution part must comply with the safety regulations.
 Installation must be carried out in strict accordance with the
following installation steps, otherwise it will cause product
damage.
Attention
 When handling and installing, please lift it gently to avoid injury
to the foot or damage to the product.
 Keep the system away from flammable objects and away from
heat sources.
 Do not drop debris into the system when installing this system,
otherwise it may cause system failure.
Work Run
Danger
 During normal operation, it is strictly forbidden to directly touch
the terminals such as output and input to avoid electric shock
hazard.
 Do not open the casing of the machine directly during normal
operation, otherwise it may cause electric shock.
Attention

Before running, please ensure that the product is used within the
allowable working range, otherwise it will cause damage to the
product.

When the product is not used for a long time, the battery should
be discharged to between 45% and 60% of the battery, and the
battery output should be disconnected to avoid the battery being
emptied.

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Maintain, Overhaul
Danger

When removing the outer casing, be sure to disconnect the input
and output circuits, otherwise there is danger of electric shock.
 Even if the casing is disassembled, there is still residual power
inside the machine. Do not touch the bare part of the line directly
to avoid electric shock.
 Maintenance and overhaul must be performed by professional
maintenance personnel. Users should not disassemble the
machine to avoid electric shock and product damage.
Carry
Danger
 During the carry process, avoid strong vibration, falling,
bumping, and prohibit the box from being inverted. Do not lose
the accessories and user manual, warranty card, etc. when
unpacking.
Attention
 Be careful when handling, so as not to hurt your body.
Others
Danger
 It is forbidden to modify the system by itself to avoid serious
accidents.
 When an abnormality occurs inside the machine, immediately
disconnect the power supply and load.

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Identification
When installing, using, and servicing this product, please read the manual
carefully and follow the safety precautions required in the manual. The safety
precautions mentioned in this manual are only intended to supplement local
safety regulations.
Any injury or loss caused by illegal operation is irrelevant to the company.
Symbol Definition
Note! Due to the danger of not operating as required, it may
result in moderate or minor injury to the person and damage
to the product!
Danger: High voltage danger, be careful of electric shock!
No smoking!
Do not step on!
The product outlet is hot and carefully touched!
Wait 5 minutes after power off to ensure the machine is fully
discharged!
Recyclable!
This product must not be disposed of with other household
waste and must be sent to an appropriate facility for recycling
and recycling!
This face should not be tilted upside down!
Please read manual carefully before use!
5 min

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Contents
Overview .................................................................................. 1
Safety Precautions .......................................................................... 2
Identification ............................................................................... 4
Contents .................................................................................. 5
1. Product Introduction ...................................................................... 6
1.1 Overview ........................................................................... 6
1.2 Physical dimension .................................................................. 6
1.3 Product composition ................................................................. 7
1.4 System technical parameters ......................................................... 7
1.5 Module introduction .................................................................. 9
2. Product Installation ...................................................................... 12
2.1 Device list ......................................................................... 12
2.2 Before installation .................................................................. 14
2.3 Tool preparation .................................................................... 15
2.4 System installation ................................................................. 16
3. Electrical Connection .................................................................... 24
3.1 System working principle diagram .................................................... 24
3.2 Battery module ground .............................................................. 24
3.3 System ground ..................................................................... 25
3.4 System wiring ...................................................................... 25
3.5 DIP switch settings ................................................................. 33
3.6 Matching resistor installation ......................................................... 34
4. Operation Guide ........................................................................ 38
4.1 Operational statement .............................................................. 38
4.2 Switching machine operation ......................................................... 38
4.3 Display state ....................................................................... 39
4.4 Host computer description ........................................................... 41
5. Maintenance and Common Troubleshooting ................................................ 44
5.1 Daily maintenance .................................................................. 44
5.2 Common troubleshooting table： ..................................................... 44
6. Packaging, Transportation, and Storage .................................................... 45
6.1 System packaging .................................................................. 45
6.2 System handling and transportation ................................................... 45
6.3 System storage .................................................................... 46

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1. Product Introduction
1.1 Overview
The battery system is based on a lithium iron phosphate battery and adopts a modular
parallel design lithium battery system.
 Mainly consists of one cabinet and multiple battery modules.
 The single cabinet supports up to four 48V/50Ah battery modules in parallel.
 Supports up to four cabinets in parallel and can be expanded to 38.4KWh.
 Customized battery management system (BMS), real-time data acquisition, status monitoring
and control to ensure safe and reliable operation of the system.
The system has flexible configuration and high reliability, which can be widely
applied to household energy storage scenarios.
1.2 Physical dimension
Cabinet size (mm): Height 1150, Width 570, Depth 285
Cabinet color: Silver: Pantone 7544U
White cabinet front door color code: Pantone 705(Equivalent to Apple white)
Black cabinet front door color code: Pantone Black 6
Logo color: PT 877C

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1.3 Product composition
○
1Cabinet ○ 2LOGO ○ 3Front door ○ 4Machine foot ○ 5Inlet and outlet ○ 6Nameplate ○ 7Side door
○
8Switch button ○ 9SOC Inspection window ○ 10 Battery module ○ 11 Mounting brackets ○ 12 Cabinet buckle
1.4 System technical parameters
NO. Item Specification parameter Remark
1 System energy 9.6kWh
2 System capacity 200Ah
3 Number of parallel 4 in parallel 4850 battery module in
parallel
4 DOD 80%DOD
5 Rated voltage 48V
6 Voltage range 42V~52V
7 Rated current Charge 75A
Discharge 90A
8 Maximum current Charge100A
Discharge120A
9 System efficiency >96%

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10 Operating
temperature Charge-10℃～45℃ Discharge-10℃～45℃ Suggest25℃
11 Storage ambient
temperature
-20℃～20℃ 12 months
The SOC before storage is
kept in the range of 40% to
60%.
-20℃～45℃ 3 months
-20℃～50℃ 1month
12 Environment
humidity ≤90%RH No condensation
13 Altitude ≤2000m
14 System noise ＜40dB
16 Protection level IP55
17 Pollution level Class 2
18
External
communication
interface
RS485
19 Guideline UN38.3, UL1973
20 Equipment size 1150mm*570mm*285mm W*H*D
21 Equipment weight 150±2kg
22 Installation method Floor/Wall mount Two installation methods
23 Cabinet front door
color White/Black Two colors
24 Cabinet color Silver One color
25 Charge and
discharge cycle
6000 Times @25℃ 80%DOD (0.5C Charge &
Discharge）

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1.5 Module introduction
1.5.1 Panel description
NO. Description Function Remark
1 Mounting holes Battery box and cabinet fixing hole
2 handle Battery box handle
3,4 Input and
output negative
Battery box power output negative interface
5 logo Manufacturer description information
6 RS485 RS485 communication interface RJ11-6P
7,8 CAN CAN communication interface RJ45-8P
9 ADD Battery box dial switch
10 Dry node Multiple battery boxes in parallel with one button to
start the interface
11 button Battery box start/stop button
12 Status display Power and operation fault display
13,14 Input and
output positive
Battery box power output positive interface
15 Grounding hole Used to connect the earth

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1.5.2 Status display description
NO. Description Function
1 SOC battery power
2 Alarm Fault indicator
3 Run Running light
1.5.3 Port description
Name Port SN Explain Description
RS485
communication
interface
RJ11-6P6C
1 RS485B RS485 communication line
B
2 RS485A RS485 communication line
A
3 RS485BR
RS485 communication line
B (inside set 120Ω resistor
matching)
4-5 NC Hanging
6 GND RS485 communication
signal ground
CAN
communication
RJ45-8P8C
1 CANL CAN communication line L
2 CANH CAN communication line H
3 CANLR
CAN communication line L
(built-in 120Ω resistor
matching)
4-5 NC Hanging
6 GND CAN communication
signal ground
7-8 NC Hanging

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Parallel
machine CAN
communication
supplementary
instructions RJ45-8P8C
2-3
Press a 120
ohm resistor in
2-3 pins for
parallel CAN
communication
matching
resistors
When multiple battery
boxes are combined for
CAN communication, an
8PIN crystal head with an
internal voltage of 120
ohms is inserted in the first
and last CAN
communication interfaces
for parallel CAN
communication matching
resistors. (The crystal
head with an internal
pressure of 120 ohms is
attached as an accessory
at the time of shipment)
DIP switch 1-4
The first 3 digits set the battery address and
the 4th digit sets the operating mode. The
"ON" side indicates "1" and the other side
indicates "0"
 When the system is configured with a
battery, the 4th bit is set to “0” and the
first 3 bits are set to “000”.
 When the system is configured with
multiple battery packs, the 4th digit is
set to “0”, and the first 3 digits are set to
“000, 001, 010, 011, 100, 101, 110, 111”
to indicate “Address 0~Address 7”.
 For detailed description of the DIP
switch, refer to Section 3.2.3.
Dry contact 1-4 Short the 1st and 3rd or 2nd and 4th feet,
you can boot the battery pack.

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2. Product Installation
Attention:
1. The contents of this document may be updated from time to time due to product version
upgrades or other reasons. Unless otherwise agreed, this document is provided as a guide
only, and all statements, information, and recommendations in this document are not
warranties of any kind, express or implied.
2. Please read the User Manual carefully before installing the device for product information
and safety precautions.
3. Please install and use the device according to the contents of this document and the user
manual. Otherwise, the device may be damaged. Insulation tools must be used when
installing the device.
2.1 Device list
Before installation, please check whether the equipment is in good condition and check
whether the parts of the accessory package are consistent with the list.
Device list
NO. Material Name Specification Model QTY. Unit Remark
1
Cabinet + Black or
White cabinet front
door + Mounting
brackets(Support 24
inches)
1150mm*570mm*285mm 1 PCS Black or white
2 Battery module H4850M-P02 48V/50Ah 4 PCS
3 Hexagonal expansion
bolt M10X70 8 PCS
4 Plastic plug M10 4 PCS
Black or gray
5 Combination screw M6*12 10 PCS
6 Cable tie Length150mm, width1.8mm,
white 20 PCS
Used to bind cable fixing cables.
7 Boot line with
Connector
UL2464 22AWG300V
brown/black 1 PCS
Used to boot the system

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8 Cable 24AWG cable gray 150mm 2 PCS
For CAN communication
between two battery modules
9 Cable 24AWG cable gray 800mm 1 PCS
For CAN communication
between two battery modules
10
Power line
UL10269 3AWG 600V
orange 218mm
(label: 5619100023331)
3 PCS
Used for positive connection
between two battery modules
11
Power line
UL10269 3AWG600V
black 218mm
(black: 5619100023341)
2 PCS
Used for negative connection
between two battery modules
12
Power line
UL10269 3AWG 600V
Black1400mm
(label: 5619100023351)
1 PCS
Used for negative connection
between two battery modules
13
Power line
UL10269 3AWG 600V
black 2150mm, one end with
M8 OT terminal
(label: 5619100023601)
1 PCS
Used for connection between the
positive electrode of the battery
module and the positive side of
the battery side of the inverter
14
Power line
UL10269 3AWG 600V
orange 2650mm, one end
with M8 OT terminal
（label: 5619100023611）
1 PCS
Used to connect the battery
module negative terminal to the
inverter battery side negative
electrode
15
Cable
24AWG 8-core cable gray
2650mm, one end with RJ11
crystal head, one end with
PLTB1.5-02-B-3.81
connector
1 PCS
Used for RS485 communication
connection between battery
module and inverter
16
Ground line UL10269 10AWG
yellow-green 150mm 2 PCS
Used to connect the battery
module grounding point to the
grounding point on the cabinet
bracket
Ground line UL10269 10AWG
yellow-green 250mm 2 PCS
Used to connect the battery
module grounding point to the
grounding point on the cabinet
bracket
17
Ground line UL10269 6AWG
yellow-green 2100mm 1 PCS
Used to connect the cabinet
chassis grounding point to the
inverter chassis grounding point
18
Matching resistance RJ45 terminal with 120Ω 2 PCS Improve communication reliability

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Component schematic
2.2 Before installation
This manual contains important information for the installation and safe operation of this
product. Please follow the instructions below before starting the installation:
a. Check whether the ambient temperature of the installation site is within the specified
range of -10 °C to +45 °C; if the product is working in the environment below 0 °C for a long
time, the battery life will be reduced;
b. The area where the product is placed needs to be well ventilated, away from
dangerous substances such as water, flammable gases and corrosive agents; it is forbidden
to install and operate in salt spray environment;
c. The product is prohibited from tilting or side-discharging, and the ventilation on both
sides is good, leaving a heat dissipation space of ≥300mm. The installation of the ground
1. Cabinet X1 3. Expansion bolt X8 4. Plastic plug X4 6. Cable tie X20 2. Battery module X4 5. Combination
screwX10
7. Boot line with
Connector 4PX1 8. Cable 150X2 9. Cable 800X1
15. Cable with
connector 2650X1
10. Power line218
Orange X3
11. Power line 218
BlackX2
12. Power line 1400
BlackX1
13. Power line 2150
BlackX1
14 Power line 2650
Orange X1
16. Ground line
150mmX2、250mmX2
17. Ground line
2100mmX1
18. Matching
resistanceX2

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and the wall surface must meet the load-bearing requirements of the battery system;
d. the product installation location should avoid sun, rain, snow, etc.;
e. need to be installed by professionals;
f. If the product is disassembled or used under low temperature or high humidity, there
may be condensation of water droplets. It must be installed after the product is completely
dry, otherwise there is danger of electric shock;
g. In any emergency, please stop charging and discharging immediately, and
disconnect the circuit breaker;
h. All power outlets should be connected to the PGND cable.
2.3 Tool preparation
Lifting equipment Phillips
screwdriver
Slotted
screwdriver
Insulated adjustable
wrench
Multimeter Insulating
protective shoes Insulating tape Insulated gloves
Steel tape Complete socket
wrench Impact drill Rubber hammer
Wire stripper Diagonal pliers Utility knife Crimping tool

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Crystal head
crimping pliers Marker
2.4 System installation
2.4.1 Installation clearance
The battery system cabinet can be installed on the floor and wall mount. The system
adopts the natural heat dissipation method. The recommended installation height of the wall
mount mode is about 1-1.2 meters. The bottom of the fixed installation bracket is used as the
standard. The left and right sides of the cabinet should be left and installed 300mm cooling
space
Floor installation Wall mounting

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2.4.2 Installation steps
Move the battery cabinet to the installation site to ensure that the floor and wall can
withstand the total weight of the battery system. After the preparation is completed, follow
the steps below to install it.
(1) Remove the side door: Use a screwdriver to
unscrew the 6 screws that secure the side door and
remove the side door panel.
(2) Remove the mounting bracket: Use a
screwdriver to remove the 4 fixing screws on both
sides of the mounting bracket and take off the
(3) Remove the battery fixing screw in the position shown.

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The original mounting bracket is suitable for 12, 16 inch installation space. If it is to be applied to a 20
or 24 inch installation, remove the screws in the red circle in the above figure and move the removed parts
to the left and right by a screw hole in the direction indicated by the arrow to fix the screws. The adjusted
bracket is suitable for 20, 24 inch installation space.
(5) Fixed mounting bracket: Place the mounting bracket on the appropriate position on the wall
(recommended installation height is about 1-1.2 meters, which is calculated based on the bottom of the
fixed mounting bracket). Adjust the mounting bracket according to the width of the mounting wall, draw
with the pen at the mounting hole Mark the hole with a hole diameter ofφ14 at the mark 70mm; insert the
expansion screw seat into the hole and knock it to the end; after unscrewing the screw, fix the mounting
bracket to the wall and tighten the screw with a wrench.
(4) Adjusting the mounting bracket

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(6) Install the cabinet: Hang the cabinet on the mounting bracket and fix it on both sides with the screws
removed in step 2. There are three outlet holes on the cabinet (as shown below), and one hole is selected
as the cable in and out according to the needs of the site.
Note: When installing on the floor, the wall drilling height should ensure that the cabinet feet
can touch the ground, and then adjust the foot support with a wrench.
Top outlet hole
Left-side outlet hole
Bottom outlet hole