HEIDENHAIN TNC 426 (280 476) - Manual (Page 435)

408 11 Test run and Program Run
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11.4 Program run
Application
In the Program Run, Full Sequence mode of operation the TNC
executes a part program continuously to its end or up to a program
stop.
In the Program Run, Single Block mode of operation you must start
each block separately by pressing the machine START button.
The following TNC functions can be used in the program run modes of
operation:
n
Interrupt program run
n
Start program run from a certain block
n Optional Block Skip
n Editing the tool table TOOL.T
n Checking and changing Q parameters
n Superimposing handwheel positioning
n Functions for graphic simulation
n
Additional status display
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
7 7 7 7 Start the part program with the machine START button.
Program Run, Single Block
7 7 7 7 Start each block of the part program individually with the machine
START button.
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.