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4.14.2.
Data received by BMM from EMS
To work properly, BMM needs to receive data from EMS.
Command to close the contactor
:
At start-up, the battery is in
STANDBY
mode and is waiting for a RPDO CAN open message to
go in
NOMINAL
mode (and close the contactor).
See above the RDPO2 CAN open frame to send:
RPDO2 (ID: 0302
h
)
Byte0
0 (N/U)
Byte1
0 (N/U)
Byte2
2055h: Battery contactors authorization
Byte3
0 (N/U)
Byte4
0 (N/U)
Byte5
0 (N/U)
Byte6
0 (N/U)
Byte7
0 (N/U)
Byte2 - Bit0:
Authorization for Main+ contactor
- 0 = not authorized to close Main+ or command to open Main+ contactor
- 1 = authorized to close Main+ contactor
The 2055h object could also be written using SDO CAN open protocol.
Authorization must be kept at 1 in order to keep the battery system in
NOMINAL
mode. If
this bit is reset to 0, battery will open the contactor and go in
STANDBY
mode.