Fanuc Series 15i 150i
Fanuc Alarm SP0987 (Serial Spindle Control Error)
Fanuc Alarm SP0987 (Serial Spindle Control Error)
An abnormality occurred in the serial spindle control LSI device in the CNC.
Cause and Action
Check whether the printed circuit board in the CNC is abnormal. If the above check does not reveal any abnormality, the printed circuit board in the CNC may be defective.