Motor Overload (I²t)

What does OC6 mean?

The motor has exceeded its thermal overload limit (I²t model), caused by excessive continuous current or frequent/prolonged acceleration cycles. This indicates the motor is either undersized for the application, or the drive parameters are not correctly configured. Continued operation under overload conditions will severely damage the motor windings.

Complete Troubleshooting Guide

1. 1

   Assess the motor sizing relative to the application's mechanical load and duty cycle; consider a larger motor if consistently overloaded.

2. 2

   Review the drive's acceleration and deceleration times to reduce transient overload conditions.

3. 3

   Verify the motor's nominal current and overload settings (e.g., C0120) are correctly parameterized in the drive.