Motor Overload

What does F7 mean?

This fault indicates that the motor connected to the drive has experienced an internal electronic overload trip, meaning it has drawn excessive current for an extended period. This is often caused by an excessive mechanical load on the motor, leading to overheating and potential damage to the motor windings. The drive’s internal electronic overload protection attempts to prevent motor damage. Continuous overloading will shorten the motor’s lifespan and can lead to winding burnout.

Complete Troubleshooting Guide

1. 1

   Assess and reduce the mechanical load on the motor. Ensure that the load is within the motor's specified ratings.

2. 2

   Verify that the motor overload current parameter (P103 [Motor OL Current]) is correctly set to the motor's nameplate full load amperage (FLA).

3. 3

   Check the A453 [Boost Select] setting; an improper boost setting can cause the motor to draw more current than necessary, leading to overload.