HEIDENHAIN TNC 620 (340 56x-01) - Manual (Page 468)

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am Run
Running a part program
Preparation
1 Clamp the workpiece to the machine table.
2 Set the datum.
3 Select the necessary tables and pallet files (status M).
4 Select the part program (status M)
Program Run, Full Sequence
 Start the part program with the machine START button.
Program Run, Single Block
 Start each block of the part program individually with the machine
START button.
Interrupting machining
There are several ways to interrupt program run:
„ Programmed interruptions
„ Machine STOP button
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:
„ STOP (with and without a miscellaneous function)
„ Miscellaneous function M0, M2 or M30
„ Miscellaneous function M6 (determined by the machine tool builder)
You can adjust the feed rate and spindle speed with the
override knobs.
It is possible to reduce the rapid traverse speed when
starting the NC program using the FMAX soft key. The
entered value remains in effect even after the machine
has been turned off and on again. In order to re-establish
the original rapid traverse speed, you need to re-enter the
corresponding value.