F006

Motor Stalled

Allen-Bradley · PowerFlex 520-series Adjustable Frequency AC Drive

What does F006 mean?

The drive is unable to successfully accelerate or decelerate the motor to the commanded speed, indicating a motor stall condition. This typically happens when the mechanical load is too high, or acceleration/deceleration ramps are set too aggressively, causing the output current to exceed limits for an extended period. This risks motor and drive damage from overheating.

Complete Troubleshooting Guide

  1. 1

    Increase the acceleration and/or deceleration time parameters (e.g., P041, A442, A444, A446) to reduce the current demand during speed changes.

  2. 2

    Reduce the mechanical load on the motor or check for any obstructions causing excessive resistance.

  3. 3

    Inspect the motor and driven equipment for mechanical binding, bearing issues, or other failures preventing free rotation.

  4. 4

    Verify that the drive's current limits (A484, A485) are appropriately set for the motor and application.