KFAS: Fanuc CNC Parts, Service, & Repair



Fanuc 16i 18i 21i SERIAL SPINDLE ALARM 749

Alarm 749 Description: Serial Communication error between the CNC and Spindle Amplifier

Check for the alarm status on the Spindle Amplifier Module and the communication cable.

Possible problems

KFASLLC can help you determine the cause of Fanuc alarm 749