Unbalance

What does 18 mean?

This fault occurs in paralleled drive units, indicating an unbalance between the power modules, specifically in current or DC voltage. This suggests uneven load sharing or internal discrepancies between the paralleled drives. Unresolved unbalance can lead to premature failure of individual power modules.

Complete Troubleshooting Guide

1. 1

   If the fault re-occurs after a reset, contact the distributor as it likely indicates an internal issue with power module balancing or measurement in one of the paralleled units.