Motor Overload Fault

What does OL1 mean?

This fault occurs when the motor current exceeds 110% of the value set in parameter E2-01 (Motor Rated Current) for a duration determined by L1-02 (Motor Overload Protection Time). It indicates the motor is drawing excessive current, risking overheating and potential damage if the condition is not resolved.

Complete Troubleshooting Guide

1. 1

   Check the mechanical load on the motor for any obstruction, binding, or excessive demands beyond the motor's rated capacity.

2. 2

   Verify that E2-01 (Motor Rated Current) and L1-02 (Motor Overload Protection Time) are accurately set according to the motor nameplate data.

3. 3

   Inspect the motor for signs of overheating, damaged bearings, or winding issues such as shorts.

4. 4

   Ensure L1-01 (Motor Overload Protection Selection) is enabled and correctly set for the motor's cooling type (e.g., Standard Fan Cooled).

5. 5

   Measure motor winding resistance and insulation resistance to check for internal motor damage.