Fanuc alarm: 21 - ILLEGAL PLANE AXIS COMMANDED

Machine Alarm Error & Message:
21 - ILLEGAL PLANE AXIS COMMANDED

Fanuc's Alarm Description: An axis not included in the selected plane (by using G17, G18, G19) was commanded in circular interpolation. Modify the program.

Additional Suggestions & Alarm Clarification:
None currently

Help Others:
Post troubleshooting recommendations for (Fanuc alarm: 21 - ILLEGAL PLANE AXIS COMMANDED) error message below.

Fanuc CNC Control Models Applicable:
16/18/21, 16i/18i/21i, 160i/180i/210i, 0/00/0-mate, 0i




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