SL

Speed limit indication (output during speed limit)

Mitsubishi Electric · 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.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

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

Source: Mitsubishi FR-E800 Variable Frequency Drive
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