SL

Speed limit indication (output during speed limit)

Mitsubishi · FR-E800 Variable Frequency Drive

What does SL mean?

This indicator appears if the speed limit level is exceeded during torque control. It signifies that the inverter is actively limiting the motor speed to the set maximum, preventing it from overrunning.

Complete Troubleshooting Guide

  1. 1

    Decrease the torque command value if the motor is overshooting the speed limit excessively.

  2. 2

    Increase the speed limit level parameter if the current limit is too restrictive for the application's required speed.

  3. 3

    Check that the torque command is not larger than required, which could lead to frequent speed limiting.