SP0978
Serial Spindle Amplifier Communication Timeout (15i)
Fanuc · AC Spindle Motor αi-βi Series Parameters
What does SP0978 mean?
A time-out was detected in communication with a serial spindle amplifier for Series 15i. This indicates a delay or failure in receiving a response from the amplifier within the expected timeframe.
Repair Steps
Verified technical data. Last updated: March 2026
Source: Fanuc AC Spindle Motor αi-βi Series Parameters