Fanuc alarm SP1983: SERIAL SPINDLE AMP. ERROR
spindle alarm (serial spindle interface, CNC side) · Fanuc 0i-D
What it means
The CNC attempted to clear an alarm state on the spindle amplifier side but could not. Possible causes are failure of the hardware used for serial spindle control or the effect of electrical noise preventing the reset handshake.
Likely causes
- Latched hardware alarm inside the amplifier that resists remote reset
- Noise-corrupted reset transaction across the serial link
Triage note: Power-cycle the whole drive train; check the SPM's own LED code afterwards.
Need the part urgently?
Send us alarm SP1983 with your machine details — typical RFQ turnaround is 24–48h.