MPP Solar RS485 Manuel utilisateur
1
BMS RS-485 Card/Box Quick Guide V.1.3
Thank you for purchasing RS485 card/box. This manual contains instructions and warnings that
should be followed during the installation, operating and storage of the card. Please keep this
manual for further reference.
Applicable models:
Hybrid inverter 3KW, 4KW, 5KW and 5.5KW
3-phase hybrid inverter 10KW and 15KW
Single phase off-grid inverter 4KW/5KW
Split phase off-grid inverter 6KW
Online 48V 3KVA/5KVA/6KVA UPS
Before installation, please make sure this RS-485 card/box is compatible to your
existing inverter.
1. Product Introduction
If the inverter is built in intelligent slot, it can work with RS485 card by simply inserting the
RS485 card. RS485 external box can provide communication slot for the inverter without
intelligent slot. No matter it’s RS485 card or RS485 box, it provides communication between
inverter and lithium battery.
Here are the detailed functions:
Via the communication between the inverter and lithium battery, it’s able to re-configure
the charging voltage, charging current, battery discharge cut-off voltage and max.
discharge current, according to the lithium battery parameters.
Have unit start or stop charging according to the status of lithium battery.
Have unit start or stop discharging according to status of lithium battery.
Special Precautions
If this card/box must be stored prior to installation; storage must be in a dry place
The admissible storage temperature range is from -10ºC to +70ºC.
2
BMS RS-485 Card/Box Quick Guide V.1.3
2. Unpacking and Overview
2-1. Package Contents
Before installation, please inspect the unit. Be sure that nothing inside the package is damaged.
You should have received the following items inside of package:
RS485 Card Package Items:
RS485 card RJ45 cable Manual
Note: This supplied RJ45 cable is custom-made.
RS485 Box Package Items:
RS485 box RJ45 cable RS232 cable Manual
Note: This supplied RJ45 cable is custom-made.
2-2. Product Overview
RS485 card:
RS-485 port
Golden finger(RS-232 port)
Resistance switch
Communication switch
3
BMS RS-485 Card/Box Quick Guide V.1.3
RS485 box:
RS-485 communication port
12V DC input: 12V DC/1A power source for communication card
* It’s necessary to have 12VDC power source. Please purchase an AC/DC adapter
separately.
RS-232 communication port
3. Configuration
3-1. Communication Format Configuration
*It’s request to use 9600bps baud rate and no parity check1 stop bit if
communicating with BMS. The Bit setting for # 1 is OFF, # 2 is ON, # 3 is ON, #
4 is OFF.
Function
Bit Setting
Meaning
Baud
rate
# 2
# 1
OFF
OFF
2400bps
OFF
ON
4800bps
ON
OFF
9600bps*(Default)
ON
ON
19200bps
Parity
check
# 4
# 3
OFF
OFF
Even parity
ON
OFF
Odd parity
OFF
ON
No parity check 1 stop bit
(Default)
ON
ON
No parity check 2 stop bits
4
BMS RS-485 Card/Box Quick Guide V.1.3
3-2. RS485 resistance configuration
Function
Bit #
Setting
Meaning
Push up resistance
# 6
ON
Enable (Default)
OFF
Disable
Push down resistance
# 7
ON
Enable (Default)
OFF
Disable
Terminate resistance
# 8
ON
Enable (Default)
OFF
Disable
3-3. SW1 Reset
All of dip switches in SW1 should be switched to “OFF” status.
Bit #
Setting
Meaning
# 1
OFF
Disable(Default)
# 2
OFF
Disable(Default)
# 3
OFF
Disable(Default)
# 4
OFF
Disable(Default)
# 5
OFF
Disable(Default)
# 6
OFF
Disable(Default)
# 7
OFF
Disable(Default)
# 8
OFF
Disable(Default)
There are three bits to configure the RS485
resistance. Use the bit #6, #7 and #8 of SW2 to
set RS485 Resistance. From top to bottom, it’s 1
to 8 as shown left. When the switch is pushed
down, the bit is set to “OFF”. Otherwise, the bit
is set as “ON”.
5
BMS RS-485 Card/Box Quick Guide V.1.3
3-4. Lithium battery communication configuration
1. ADD Switch: There are 4 ADD switches are to define different baud rate and battery group
address. If switch position is turned to bottom for “OFF” position, it means “0”. If switch
position is turned to upper for “ON” position, it means “1”.
Dip 1 is “ON” to represent the baud rate 9600.
Dip 2, 3 and 4 are to set up battery group address.
Dip switch 2, 3 and 4 on master battery (first battery) are to set up or change the group
address.
NOTE: “1”is upper position and “0”is bottom position.
Dip 1
Dip 2
Dip 3
Dip 4
Group address
1: RS485
baud rate=9600
Restart to take
effect
0
0
0
Single group only. It’s necessary to set up master
battery with this setting and slave batteries are
unrestricted.
1
0
0
Two-group condition. It’s necessary to set up
master battery on the first group with this setting
and slave batteries are unrestricted.
0
1
0
Two-group condition. It’s necessary to set up
master battery on the second group with this
setting and slave batteries are unrestricted.
NOTE: The maximum groups of lithium battery is 2 and for maximum number for each group,
please check with battery manufacturer.
6
BMS RS-485 Card/Box Quick Guide V.1.3
3-5. Interface Configuration
RS-485 pin configuration on BMS RS485 Card/Box:
Pin
Function
1
2
3
4
RS-485 - B
5
RS-485 - A
6
7
8
GND
RS-485 pin configuration on Lithium battery:
Pin
Function
1
RS-485 - B
2
RS-485 - A
3
GND
4
5
6
GND
7
RS-485 - A
8
RS-485 - B
4. Installation and Operation
After configuration, please install this card/box with inverter and Lithium battery by following
below steps.
RS485 card
Follow below steps to install and use this
RS485 card:
RS485 box
Follow below steps to install and use this RS485
box.
(1) Insert this RS485 card into intelligent
slot of the inverter.
(1) Use supplied RS232 cable to connect RS485
box and the inverter.
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BMS RS-485 Card/Box Quick Guide V.1.3
(2) Use supplied RJ45 cable to connect
RS485 card and Lithium battery.
(2) Use supplied RJ45 cable to connect RS485
box and Lithium battery.
(3) Switch on Lithium battery.
(4) Please purchase an AC/DC adapter
separately to supply DC input (12VDC) to
RS485 box.
Adapter plug dimension: OD=5.5mm ID=2.5mm
(4) Turn on the inverter.
(5) Switch on Lithium battery.
(6) Turn on the inverter.
After all wires are connected well and the communication between the inverter and battery is
successful, it will show different successful icon on the LCD screen. Please check below table.
Model
Hybrid inverter
3KW/4KW/5KW/5.5K
W
Split phase off-grid
inverter 6KW
Hybrid inverter
3KW/4KW/5KW/10KW/
15KW
Single phase
off-grid inverter
Online UPS
LCD
screen
Frame of battery icon
will flash
“Li-bAt” icon will light on.
“Li” icon will light on.
8
BMS RS-485 Card/Box Quick Guide V.1.3
Active Function
This function is to activate lithium battery automatically while commissioning. After battery
wiring and commissioning is successfully, if battery is not detected and active function is
enabled in bundled software, the inverter will automatically activate battery if the inverter is
powered on.
5. Code Reference (Only for 3KW/4KW/5KW/10KW/15KW models)
Related information code will be displayed on LCD screen. Please check inverter LCD screen for
the operation.
Code
Description
Informs inverter to stop discharging battery.
Informs inverter to stop charging battery.
Informs inverter to charge battery.
Table des matières
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