Overtorque Detection 1

What does OL3 mean?

The OL3 alarm indicates that the motor's current or torque has exceeded the programmed Overtorque Detection 1 Level (L6-02) for a duration longer than the Overtorque Detection 1 Time (L6-03). This suggests an excessive mechanical load or an obstruction in the driven equipment.

Complete Troubleshooting Guide

1. 1

   Inspect the mechanical system for any obstructions, excessive friction, or binding that could be increasing the motor load.

2. 2

   Verify the motor's operating current against its nameplate data and expected load conditions.

3. 3

   Review parameters L6-02 (Overtorque Detection 1 Level) and L6-03 (Overtorque Detection 1 Time); adjust them if they are set too sensitively for the application, ensuring adequate protection.

4. 4

   Check the driven machinery for any signs of wear, misalignment, or component failure contributing to increased torque.