SP1985
SIC-LSI Faulty (CNC Side, 30i Range)
Fanuc · AC Spindle Motor αi-βi Series Parameters
What does SP1985 mean?
The SIC-LSI (Serial Interface Converter-LSI) on the CNC side for Series 30i (codes SP1985 to SP1987) is faulty. This indicates a hardware error on the CNC's serial communication interface.
Repair Steps
Verified technical data. Last updated: March 2026
Source: Fanuc AC Spindle Motor αi-βi Series Parameters