Opening A New Part Program - HEIDENHAIN TNC 620 User Manual

3
Programming: Fundamentals, file management
3.2 Opening programs and entering

Opening a new part program

You always enter a part program in the PROGRAMMING AND
EDITING 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 = ALT.H
Enter the new program name and confirm your
entry with the ENT key.
Selecting 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 spindle axis, e.g. Z
Z
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
0 BEGIN PGM NEW MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-40
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 END PGM NEW MM
The TNC automatically generates the block numbers as well as the
BEGIN and END blocks.
If you do not wish to define a blank form, cancel the
dialog at Working plane in graphic: XY by pressing
the DEL key.
94
Program begin, name, unit of measure
Spindle axis, MIN point coordinates
MAX point coordinates
Program end, name, unit of measure
HEIDENHAIN Conversational Programming | 3/2014
TNC 620 | User's Manual