Controller Limits
The CAPRA application can send recommended limiter settings and current limits to the connected motor controller over CAN bus. This allows the BMS to protect the battery by restricting the controller operation based on battery state.
These parameters are located in the /controller folder.
Correct setting of these parameters allows you to switch between different batteries without the need to reconfigure the controller.
Recommended Limiter Settings
These parameters are sent using CAN message 0x506 to the controller and applied as driver limiter values. If the value is 0, the corresponding limit is not applied.
ibpos [A]
Recommended positive bus current limit (/driver/limiter/Ibpos on the controller).
ibneg [A]
Recommended negative bus current limit (/driver/limiter/Ibneg on the controller).
ubmin [V]
Recommended minimum bus voltage limit (/driver/limiter/Ubmin on the controller).
ubmax [V]
Recommended maximum bus voltage limit (/driver/limiter/Ubmax on the controller).
Current Limits
These parameters are sent using CAN message 0x507 to the controller to limit ipeak and iref values. If the value is 0, the corresponding limit is not applied.
ipeak_limit [A]
Limit controller ipeak value.
iref_limit [A]
Limit controller iref value.