Fanuc Alarm: 5156 ILLEGAL AXIS OPERATION

Fanuc Alarm 5156 ILLEGAL AXIS OPERATION

Fanus Control Model: 16/18/21, 16i/18i/21i

Alarm Description

In look–ahead control mode (multi blocks are read in advance), the controlled axis selection signal (PMC axis control) changes. In look–achead control mode (multi blocks are read in advance), the simple synchronous axis selection signal changes.

Help the CNC Community: How Did You Fix It?

If you have encountered this Fanuc Alarm 5156 ILLEGAL AXIS OPERATION error code before or know a proven troubleshooting step to resolve it, please share your solution in the comments below

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