HEIDENHAIN TNC 640 - Page 632

Multiple-Axis Machining | Three-dimensional tool compensation (option 9)
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
Suppressing error messages with positive tool
oversize: M107
Standard behavior
With positive tool compensation, programmed contours may be
damaged. The control checks whether critical oversizes are created
due to tool compensation, and if so, outputs an error message.
With Peripheral Milling the control triggers an error message in the
following case:
DR
Tab
+ DR
Prog
> 0
With Face Milling the control triggers an error message in the
following case:
DR
Tab
+ DR
Prog
> 0
R2 + DR2
Tab
+ DR2
Prog
> R + DR
Tab
+ DR
Prog
R2 + DR2
Tab
+ DR2
Prog
< 0
DR2
Tab
+ DR2
Prog
> 0
Behavior with M107
With M107 the control suppresses the error message.
Effect
M107 takes effect at the end of block.
You can reset M107 with M108.