Fanuc Alarm 4509: ILLEGAL COMMAND IN CUT AT ANGLE

Fanuc Alarm 4509: ILLEGAL COMMAND IN CUT AT ANGLE

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

Fanuc Alarm Description

In a cut-at-angle (G89) command, the traveling pitch (Q) was set to zero, negative value, or another value larger than or equal to the length (I). Alternatively, I, J, P, or Q was not specified.


Have you faced Fanuc Alarm 4509 ILLEGAL COMMAND IN CUT AT ANGLE 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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