E.OC fault in KEB COMBIVERT R6 Drive indicates an overcurrent condition. This means the output or regenerative current exceeded safe limits, often caused by a ground fault, short circuit, or high EMI.
Cause:
Elevated output current levels. Common sources:
- Ground fault or short.
- High electrical Noise/EMI.
- Supply or regenerative current too high.
Remedy:
Check for any loose or missing power connections. Check for similar errors on the (F5) Elevator Drive indicating a ground fault, short, or excessive current. This may indicate the cause of the fault is occurring from the end of the drive, motor contactor, or motor. Refer to Noise/EMI in Section 6.2.2.
Check to see if the utilization in CP.6 is high. Refer to High Regenerative/Supply Current in Section 6.2.2. Verify sizing with controller manufacturer.
