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
Increase the acceleration and/or deceleration time parameters (e.g., P041, A442, A444, A446) to reduce the current demand during speed changes.
- 2
Reduce the mechanical load on the motor or check for any obstructions causing excessive resistance.
- 3
Inspect the motor and driven equipment for mechanical binding, bearing issues, or other failures preventing free rotation.
- 4
Verify that the drive's current limits (A484, A485) are appropriately set for the motor and application.