HEIDENHAIN TNC 640 (34059x-02) ISO programming - Manual (Page 525)

Program run 17.5
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TNC 640 | User's Manual for DIN/ISO Programming | 5/2013
525
Moving the machine axes during an interruption
You can move the machine axes during an interruption in the same
way as in the Manual Operation mode.
Danger of collision!
If you interrupt program run while the working plane
is tilted, you can switch the coordinate system
between tilted and non-tilted, as well as to the active
tool axis direction, by pressing the 3-D ROT soft key.
The functions of the axis direction buttons, the
electronic handwheel and the positioning logic for
returning to the contour are then evaluated by the
TNC. When retracting the tool make sure the correct
coordinate system is active and the angular values
of the tilt axes are entered in the 3-D ROT menu, if
necessary.
Example:
Retracting the spindle after tool breakage
Interrupt machining
Enable the external direction keys: Press the MANUAL
TRAVERSE soft key
Move the axes with the machine axis direction buttons.
On some machines you may have to press
the machine START button after the MANUAL
OPERATION soft key to enable the axis direction
buttons. Refer to your machine manual.
Resuming program run after an interruption
If you cancel a program with INTERNAL STOP, you
have to start the program with the RESTORE POS.
AT N function or with GOTO "0".
If a program run is interrupted during a fixed cycle,
the program must be resumed from the beginning
of the cycle. This means that some machining
operations will be repeated.
If you interrupt a program run during execution of a subprogram or
program section repeat, use the RESTORE POS AT N function to
return to the position at which the program run was interrupted.