HIAUX

High PI Auxiliary Feedback Level

Yaskawa · iQpump1000 AC Drive

What does HIAUX mean?

The PI Aux Feedback has risen above the Q6-12 level for longer than the time set in Q6-13, while the drive is running in AUTO mode with output frequency greater than zero. This indicates an abnormally high auxiliary feedback signal.

Common Causes

  • PI Aux Feedback level is above the Q6-12 threshold for longer than the Q6-13 delay.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Lower the PI Aux Feedback level to within acceptable operating range.

  2. 2

    Adjust parameters Q6-12 (High PI Aux Feedback Level) and Q6-13 (High PI Aux Feedback Level Fault Delay Time).

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Verified technical data. Last updated: March 2026

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