Fanuc Alarm 251 ATC ERROR
Fanus Control Model: 16/18/21, 16i/18i/21i
Alarm Description
This alarm is issued in the following cases;– An M06T_ command contains an unusable T code.;– An M06 command has been specified when the Z machine coordi nate is positive.;– The parameter for the current tool number (No. 7810) is set to 0.;– An M06 command has been specified in canned cycle mode.;– A reference position return command (G27 to G44) and M06 command have been specified in the same block.;– An M06 command has been specified in tool compensation mode (G41 to G44).;– An M06 command has been specified without performing reference position return after power–on or the release of emergency stop.;– The machine lock signal or Z–axis ignore signal has been turned on during tool exchange.;– A pry alarm has been detected during tool exchange. Refer to diagnosis No. 530 to determine the cause. (Only for ROBODRILL)
Help the CNC Community: How Did You Fix It?
If you have encountered this Fanuc Alarm 251 ATC ERROR error code before or know a proven troubleshooting step to resolve it, please share your solution in the comments below