HEIDENHAIN TNC 426, TNC 430 409
11.4 Program run
Interrupting machining
There are several ways to interrupt a program run:
n Programmed interruptions
n Machine STOP button
n Switching to Program Run, Single Block
If the TNC registers an error during program run, it automatically
interrupts the machining process.
Programmed interruptions
You can program interruptions directly in the part program. The TNC
interrupts the program run at a block containing one of the following
entries:
n STOP (with and without a miscellaneous function)
n Miscellaneous function M0, M2 or M30
n Miscellaneous function M6 (determined by the machine tool builder)
To interrupt machining with the machine STOP button:
U Press the machine STOP button: The block which the TNC is
currently executing is not completed. The asterisk in the status
display blinks.
U If you do not wish to continue the machining process you can reset
the TNC with the INTERNAL STOP soft key. The asterisk in the
status display goes out. In this case, the program must be restarted
from the program beginning.
Interruption of machining by switching to the Program Run,
Single Block mode of operation.
You can interrupt a program that is being run in the Program Run, Full
Sequence mode of operation by switching to Program Run, Single
Block. The TNC interrupts the machining process at the end of the
current block.
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