Short Circuit Motor Cable at Start

What does OCL mean?

This fault indicates a phase-to-phase output short circuit or a low motor impedance detected in the motor or its wiring during startup by the Altivar 212 drive.

• Phase-to-phase output short circuit in motor or cables.
• Motor impedance is too low.

Click steps to track your progress.

1. 1

   Use a 1000 V testing tool (megger) to check the motor windings for phase-to-phase insulation resistance.

2. 2

   Use a 1000 V testing tool (megger) to check the motor cables for phase-to-phase insulation resistance.