Event E069

Qualified person

Event message:

  • Battery Group1 Alarm Isolation

Explanation:

The system has detected a specific alarm in a battery module (e.g., slight overtemperature, overcurrent, overvoltage) and, if the corresponding alarm isolation switch function is activated, has automatically isolated the module (opened its DC contactor) to take it out of service.
This alarm is a status message and appears simultaneously with the original alarm that triggered the isolation.

Corrective measures:

  • Check the system warning interface for the battery module number that has been isolated.

  • Check the original warning that was reported at the same time as the battery module warning isolation (e.g., Module XX slight overtemperature), which is the direct cause behind the isolation.

  • Investigate and resolve the relevant disturbance using the original alarm information.

  • Once the underlying disturbance is resolved, the module automatically exits the isolation state, resumes operation, and this alarm is automatically cleared.

    Event E068
    Event E070