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Interrupting machining, 4 pr ogr am run – HEIDENHAIN iTNC 530 (340 49x-03) ISO programming User Manual

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564

12 Test Run and Program Run

12.4 Pr

ogr

am Run

Interrupting machining

There are several ways to interrupt a program run:

„

Programmed interruptions

„

Pressing the machine STOP button

„

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:

„

G38

(with and without a miscellaneous function)

„

Miscellaneous functions M0, M2 or M30

„

Miscellaneous function M6 (defined by the machine tool builder)

Interruption through the machine STOP button

8

Press the machine STOP button: The block which the TNC is
currently executing is not completed. The asterisk in the status
display blinks.

8

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.

Interrupting the machining process 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 the Program Run, Single
Block mode. The TNC interrupts the machining process at the end of
the current block.