HEIDENHAIN TNC 640 (34059x-05) ISO programming - Manual (Page 103)

Opening programs and entering 3.2
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TNC 640 | User's ManualDIN/ISO Programming | 1/2015
103
Opening a new part program
You always enter a part program in the Programming mode of
operation. An example of program initiation:
Select the Programming mode of operation
To call the file manager, press the PGM MGT key.
Select the directory in which you wish to store the new program:
FILE NAME = NEW.I
Enter the new program name and confirm your
entry with the ENT key.
Select the unit of measure: Press the MM or INCH
soft key. The TNC switches the screen layout and
initiates the dialog for defining the
BLK FORM
(workpiece blank)
Select a rectangular workpiece blank: Press the
soft key for a rectangular blank form
WORKING PLANE IN GRAPHIC: XY
Enter the spindle axis, e.g. G17
WORKPIECE BLANK DEF.: MINIMUM
Enter in sequence the X, Y and Z coordinates of
the MIN point and confirm each of your entries
with the ENT key
WORKPIECE BLANK DEF.: MAXIMUM
Enter in sequence the X, Y and Z coordinates of
the MAX point and confirm each of your entries
with the ENT key
Example: Display the BLK form in the NC program
%NEW G71 * Program begin, name, unit of measure
N10 G30 G17 X+0 Y+0 Z-40 * Spindle axis, MIN point coordinates
N20 G31 X+100 Y+100 Z+0 * MAX point coordinates
N99999999 %NEW G71 * Program end, name, unit of measure
The TNC automatically generates the first and last blocks of the
program.
If you do not wish to define a blank form, cancel the
dialog at
Working plane in graphic: XY by pressing
the DEL key.