Overcurrent

What does 1 mean?

The AC drive has detected an excessively high current, exceeding 4 times the nominal current (4*IH), in the motor cables. This condition typically results from a sudden heavy increase in mechanical load, a short circuit within the motor cables, or the use of an unsuitable motor for the application. Subcode S1 indicates a hardware trip, while S3 points to current controller supervision.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Verify the integrity of the motor cables for any signs of insulation failure or short circuits between phases or to ground.