HEIDENHAIN TNC 640 (34059x-01) - Manual (Page 215)

HEIDENHAIN TNC 640 215
6.6 P
a
th Cont
ours—FK F
ree Cont
our Pr
ogr
a
mming
Initiating the FK dialog
If you press the gray FK button, the TNC displays the soft keys you can
use to initiate an FK dialog—see the following table. Press the FK
button a second time to deselect the soft keys.
If you initiate the FK dialog with one of these soft keys, the TNC shows
additional soft-key rows that you can use for entering known
coordinates, directional data and data regarding the course of the
contour.
FK element Soft key
Straight line with tangential connection
Straight line without tangential connection
Circular arc with tangential connection
Circular arc without tangential connection
Pole for FK programming