Motor Overcurrent

What does Over curr F mean?

This fault indicates that the current drawn by the motor has exceeded its rated limit, typically during acceleration, steady-state operation, or sudden load changes. Causes can include excessive mechanical load, a short circuit in the motor or cable, or incorrect motor parameters. High currents generate excessive heat, which can quickly damage motor windings, cables, and the VSD's output stage.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Verify that motor parameters (e.g., rated current, no-load current) in the VSD are correctly configured according to the motor's nameplate.

2. 4

   Increase acceleration ramps if the overcurrent occurs during startup, to reduce peak current demands.

3. 5

   Measure the actual motor current with a clamp-on meter to compare with expected values under load.