Event E127
Qualified person
Event message:
Battery Stack Leakage
Explanation:
The system has detected that a battery module in the battery pack has reported an insulation error. This is a system-level error alarm indicating an insulation disturbance. The system has activated an error protection state, thereby preventing charging and discharging.
Corrective measures:
First, via the battery pack's monitoring interface, use the detailed information regarding this alarm or the associated alarm list to identify the exact number of the battery module that reported the insulation error.
Based on the specific insulation error code (e.g. E050 or E054) reported by this module, follow the corresponding, more detailed troubleshooting instructions in the manual. This generally includes checking the electrical insulation of this module's batteries, its distribution board, and the corresponding PCS branch circuit.
Once the insulation problem for this battery module has been resolved, its specific insulation error alarm will be reset. As soon as the insulation status of all battery modules has returned to normal, this system-wide collective alarm will be automatically reset.