Fanuc Alarm 221: ILLEGAL COMMAND IN SYNCHR–MODE

Fanuc Alarm 221: ILLEGAL COMMAND IN SYNCHR–MODE

Fanuc Control Model: 16 / 18 / 21-Series, 16i/18i/21i and 30i/31i/32i series

Fanuc Alarm Description

T series

Polygon machining synchronous operation and axis control or balance cutting are executed at a time. Modify the program.


Have you faced Fanuc Alarm 221 ILLEGAL COMMAND IN SYNCHR–MODE on your machine? Share your experience or troubleshooting tips in the comments below to help other CNC operators and programmers clear this error faster!

 

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