Event E122
Qualified person
Event message:
Charging current limiting value control failure
Explanation:
The system has detected that the actual charging current continuously exceeds the current limit setpoint specified by the BMS, whereby the deviation exceeds the permissible range, indicating an error in the current control. The system has triggered an error and performed a protective shutdown.
Corrective measures:
On the PCS monitoring interface, check whether the charging current limit value output by the BMS in real time has been correctly received, and ensure that this value matches the setting on the BMS side.
If the command has been received correctly, check for irregularities in the internal current control logic, the power components, and the drive circuits of the PCS that prevent the implementation of the current limiting.
If the message remains, contact Service.