Connecting Communication Cables; Commissioning - SolaX Power BMS Parallel Box-II G2 User Manual

Installation
4.6.3

Connecting Communication Cables

1) There is a protection cover for the RS485 connector. Unscrew the cover and plug
one end of the RS485 I communication cable to the RS485 I connector. Tighten the
plastic screw nut which is set on the cable with a rotation wrench. The operation is
the same as above if connecting to the COM1/BMS connecter.
For T-BAT-SYS-HV-5.8 (RS485 I, BMS): For T-BAT-SYS-HV-3.0 (COM1, BMS):
2) Connect the communication cable from the parallel box to the COMM/BMS/RS485 I
communication port that is on the left side of the battery module.
HV11550 to Parallel box SLAVE "RS485 I";
HV10230 to Parallel box SLAVE "S-CAN";
T-BAT H 5.8 or MC0600 to Parallel box MAIN "M-CAN".
The wire order of the communication cable is as follows:
Sequence 1 2
SLAVE RS485 I VCC_485 GND_485
SLAVE CAN VCC_1 GND
/
MAIN CAN
GND
4.6.4 Connecting the Ground Wire
Remove the M5*10 screw from the bottom of the BMS Parallel box-
screwdriver, and then screw the groung wire(10 AWG/6 mm) to the corresponding
grounding port.
20
B
+
B
-
Slave
Main
3 4 5 6 7
B2 N- P+ A2 VCC_485_2 GND_485
N-
VCC_2 CANH CANL
GND
BMS_H BMS_L /
/ A1
Ⅱ
M5*10
2.5-3 N·m
NOTE!
When BMS Parallel
modules, if master group's CAN is connected to slave group's CAN port, it can
operate and function normally. However, the master group cannot be
upgraded properly in this configuration.
5

Commissioning

5.1 Configuring the Box
• The DIP switch is used to configure the communication between battery
module(s) and the device. By default, only two groups of batteries can be
matched for use.
• The black-start function is only used in an off-grid application and when
there is no other power supply. To Black-start, hold down the button for 20
seconds until the soc light starts flashing blue to indicate successful black-start.
If the box is started in the black-start mode, remind that even when there is no
BMS communication, the port still contains high voltage with risk of electric
shock.
If the BMS communication has still not been established within 3 minutes after
starting the black-start mode, it indicates that the black start fails to start.
• After the BMS Parallel box-
alternate flashing red and green for more than two minutes, and then change
8
to green flashing with the inverter reporting "Batt_ClusterCommuCountMis-
P+ -Match", please check the communication connection of the second group of
B1
BMS Parallel box-
MC0600 connected to the second group.
G2 with a
• After the BMS Parallel box-
alternate flashing red and green for more than three minutes, and then change
to flashing red for one second and off for three seconds, with the inverter
reporting "BMS_Internal_Err 1", it indicates that the corresponding slave at
position 1 failed to connect to the communication successfully. According to
the error number, please check if the communication line of the slave at the
corresponding position is properly connected.
box- Ⅱ G2 is connected to T-BAT-SYS-HV-5.8 battery
Ⅱ G2 is powered on, if the indicator lights
Ⅱ
G2, as well as the power-on status of T-BAT H 5.8 or
Ⅱ G2 is powered on, if the indicator lights
Commissioning
21