Overcurrent

What does OCF mean?

This fault indicates that the current drawn by the motor has exceeded the drive's maximum permissible limit. Common causes include incorrect drive or motor parameters, excessive mechanical load, or a mechanical locking of the driven equipment. An overcurrent condition can quickly damage both the motor windings and the drive's output power stage (IGBTs).

Complete Troubleshooting Guide

1. 1

   Check and verify all motor-related parameters in the [SETTINGS] (SEt-, page 32) and [MOTOR CONTROL] (drC-, page 41) menus.

2. 2

   Assess the mechanical load on the motor; check for any binding, blockages, or excessive inertia that could lead to high current draw.

3. 3

   Inspect the driven mechanism for any mechanical locking, seized bearings, or other issues preventing free movement.

4. 4

   Ensure the motor and drive are appropriately sized for the application's load requirements.