Speed deviation

What does A00544 mean?

This alarm signifies that the actual motor speed has either exceeded its maximum limit or deviates significantly from the setpoint, as indicated by status bits r2197.12 or r2197.7. This often points to an excessive motoring or regenerative load on the drive, or poor tuning of the speed controller.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check the speed controller tuning (e.g., P and I gains) to ensure stability and responsiveness.

2. 4

   Verify the accuracy and integrity of the speed feedback device (encoder, resolver) if used.