Fanuc Alarm 66 IMPROPER G-CODE IN G71-G73 (T series)
Fanus Control Model: 16/18/21, 16i/18i/21i
Alarm Description
T series
An unallowable G code was commanded beween two blocks specified by address P in G71, G72, or G73. Modify the program.
Help the CNC Community: How Did You Fix It?
If you have encountered this Fanuc Alarm 66 IMPROPER G-CODE IN G71-G73 (T series) error code before or know a proven troubleshooting step to resolve it, please share your solution in the comments below