Fanuc alarm SP1985: AUTOMATIC PARAMETER SETTING FAILED
spindle alarm (serial spindle, alpha i) · Fanuc 0i-D
What it means
Automatic setting of spindle parameters failed. When a serial spindle is initialized the CNC transfers motor-dependent parameter sets to the amplifier automatically; a failure here leaves the amplifier with incomplete or unverified data and it will not be released for operation.
Likely causes
- Interrupted transfer due to communication instability
- Motor ID/amplifier combination not matching available parameter data
- Amplifier unable to store received parameters (memory fault)
Triage note: Retry after confirming motor IDs and link stability; reload parameters manually if needed.
Need the part urgently?
Send us alarm SP1985 with your machine details — typical RFQ turnaround is 24–48h.