HEIDENHAIN TNC 620 (81760x-02) - Manual (Page 553)

Program run 16.5
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TNC 620 | User's Manual
HEIDENHAIN Conversational Programming | 2/2015 553
Interrupt machining
There are several ways to interrupt a program run:
Programmed interruptions
Pressing the machine
STOP button
Switching to Program Run, Single Block mode
If the TNC registers an error during program run, it automatically
interrupts the machining process.
Programmed interruptions
You can define interruptions directly in the part program. The
TNC interrupts the program run at a block containing one of the
following entries:
STOP (with and without miscellaneous function)
Miscellaneous function
M0, M2 or M30
Miscellaneous function M6 (determined by the machine tool
builder)
Interruption through the machine STOP button
Press the machine STOP button: The block that the TNC is
currently executing is not completed. The NC stop signal in the
status display blinks (see table)
If you do not wish to continue the machining process, you can
reset the TNC with the
INTERNAL STOP soft key. The NC stop
signal in the status display goes out. In this case, the program
must be restarted from the program beginning
Icon Meaning
Program run is stopped
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 the Program
Run, Single Block mode. The TNC interrupts the machining
process at the end of the current block.