Single Phase Overload

What does 33 mean?

This fault occurs when the drive is configured for single-phase operation (parameter 517), and the DC bus voltage ripple exceeds the drive's allowable limits. This indicates the input power demand is too high for the drive's capacity in single-phase mode. This can lead to drive instability and potential damage if overloaded.

Complete Troubleshooting Guide

1. 1

   Confirm that the drive's current rating and the connected motor's power demand are within the limits for single-phase operation, as specified in the manual.

2. 2

   Reduce the load on the motor if possible, or consider a larger drive if continuous single-phase operation at this load is required.

3. 3

   Consult the factory for guidance on single-phase application limits or potential drive issues.