Too Many Speed Search Restarts

What does SEr mean?

The drive has attempted Speed Search more times than the limit set in parameter b3-19. This typically indicates that the Speed Search parameters are incorrectly configured or that the motor is coasting in the opposite direction of the commanded run.

Complete Troubleshooting Guide

1. 1

   Adjust Speed Search parameters: Reduce the detection compensation gain (b3-10), increase the current level when attempting Speed Search (b3-17), or increase the detection time (b3-18).

2. 2

   Perform Auto-Tuning to optimize motor and drive parameters for the application.

3. 3

   If the motor is coasting in the opposite direction of the Run command, enable Bi-Directional Speed Search by setting parameter b3-14 to 1.