Fanuc alarm: 749 - S-SPINDLE LSI ERROR

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, , 0i
749 - S-SPINDLE LSI ERROR

Alarm Description

It is serial communication error while system is executing after power supply on. Following reasons can be considered. 1) Optical cable connection is fault or cable is not connected or cable is cut. 2) MAIN CPU board or option 2 board is fault. 3) Spindle amp. printed board is fault. If this alarm occurs when CNC power supply is turned on or when this alarm can not be cleared even if CNC is reset, turn off the power supply also turn off the power supply in spindle side.

Additional Suggestions & Alarm Clarification

None currently

Help Others
Post troubleshooting recommendations for (Fanuc alarm: 749 - S-SPINDLE LSI ERROR) error message below.

Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer