HEIDENHAIN TNC 620 User Manual page 31

3 Fundamentals, file management................................................................................................ 111
3.1 Fundamentals...................................................................................................................................... 112
Position encoders and reference marks............................................................................................... 112
reference systems................................................................................................................................ 113
Designation of the axes on milling machines.......................................................................................123
Polar coordinates...................................................................................................................................123
Absolute and incremental workpiece positions.................................................................................... 124
Selecting the datum..............................................................................................................................125
3.2 Opening programs and entering....................................................................................................... 126
Structure of an NC program in DIN/ISO format................................................................................... 126
Define the blank: G30/G31................................................................................................................... 127
Opening a new part program............................................................................................................... 130
Programming tool movements in DIN/ISO........................................................................................... 131
Actual position capture..........................................................................................................................132
Editing a program..................................................................................................................................133
The TNC search function...................................................................................................................... 137
3.3 File management: Basics................................................................................................................... 138
Files....................................................................................................................................................... 138
Displaying externally generated files on the TNC.................................................................................140
Data Backup.......................................................................................................................................... 140
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
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