Flow Rate Limit

Flow Rate Limit

Yaskawa · iQpump1000 AC Drive

What does Flow Rate Limit mean?

The drive output speed is being limited due to the Flow Rate (U1-83). This condition indicates that the system flow is either excessively high or low, triggering the internal limiter.

Common Causes

  • Excessive or insufficient water flow causing the Flow Rate Limiter to activate.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    If Flow Rate Limiter is activating improperly, confirm parameter settings P6-01, P6-26, P6-27, P6-28, and P6-29 for proper configuration.

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Verified technical data. Last updated: March 2026

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