Fanuc alarm SP1984: SERIAL SPINDLE AMP. ERROR
spindle alarm (serial spindle interface, CNC side) · Fanuc 0i-D
What it means
An error occurred during re-initialization of the spindle amplifier. After a reset attempt, the amplifier failed to come back to the expected ready state within the initialization sequence.
Likely causes
- Amplifier internal fault preventing clean restart
- Unstable control power to the amplifier
- Corrupted initialization handshake due to noise
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
- Request a quote →
A06B-6120-Hxxx
alpha i Spindle Amplifier Module (SPM) · Common cause
Need the part urgently?
Send us alarm SP1984 with your machine details — typical RFQ turnaround is 24–48h.