SW OverCurrent

What does 36 mean?

The drive output current has exceeded its 1 ms software current rating, which is a very fast-acting protection mechanism. This rating is typically between 200-250% of the drive's continuous rating and less than the hardware overcurrent level. This fault indicates a severe and rapid transient overload or a hard short circuit on the motor output terminals, protecting the drive's output stage from immediate damage.

Complete Troubleshooting Guide

1. 1

   Check the motor and driven load for any sudden mechanical loads, jams, or binding that could cause a rapid current surge.

2. 2

   Inspect motor cables thoroughly for any signs of phase-to-phase or phase-to-ground short circuits.

3. 3

   Verify motor parameters, autotune results, and current loop tuning are correct for the application to prevent transient overcurrents.

4. 4

   If external checks yield no resolution, consider a potential internal drive hardware issue, possibly related to the output section.