HEIDENHAIN TNC 620 User Manual page 19

3 Programming: Fundamentals, file management...........................................................................83
3.1 Fundamentals......................................................................................................................................... 84
Position encoders and reference marks.................................................................................................. 84
Reference system.................................................................................................................................... 84
Reference system on milling machines...................................................................................................85
Designation of the axes on milling machines..........................................................................................85
Polar coordinates...................................................................................................................................... 86
Absolute and incremental workpiece positions....................................................................................... 87
Selecting the datum.................................................................................................................................88
3.2 Opening programs and entering.......................................................................................................... 89
Organization of an NC program in HEIDENHAIN Conversational format.................................................89
Define the blank: BLK FORM.................................................................................................................. 89
Opening a new part program.................................................................................................................. 90
Programming tool movements in conversational.....................................................................................91
Actual position capture.............................................................................................................................93
Editing a program.....................................................................................................................................94
The TNC search function......................................................................................................................... 97
3.3 File manager: Fundamentals.................................................................................................................99
Files.......................................................................................................................................................... 99
Data Backup........................................................................................................................................... 101
TNC 620 | User's Manual
HEIDENHAIN Conversational Programming | 5/2013
19