Fanuc alarm 92: Velocity-command-dependent overspeed
αi SPM · Fanuc αi SPM
What it means
Actual motor speed exceeded the overspeed level corresponding to the current velocity command on the αi SPM (BiS synchronous installations). At start-up suspect parameters; during normal running suspect noise in the sensor signal.
Likely causes
- Sensor tooth-count or phase-parameter setting error
- Incorrect AMR offset parameters (No. 4084/4085)
- Noise on motor sensor feedback lines
Need the part urgently?
Send us alarm 92 with your machine details — typical RFQ turnaround is 24–48h.