HEIDENHAIN TNC 640 (34059x-01) - Manual (Page 219)

HEIDENHAIN TNC 640 219
6.6 P
a
th Cont
ours—FK F
ree Cont
our Pr
ogr
a
mming
Direction and length of contour elements
Example NC blocks
X
Y
LEN
AN
0°
I AN
X
Y
25
35°
12.5
45°
15
R6
10
R1
5
Known data Soft keys
Length of a straight line
Gradient angle of a straight line
Chord length LEN of an arc
Gradient angle AN of an entry tangent
Center angle of an arc
Caution: Danger to the workpiece and tool!
Gradient angles that you defined incrementally (IAN) are
referenced to the direction of the last positioning block by
the TNC. Programs that contain incremental gradient
angles and were created on an iTNC 530 or on earlier
TNCs are not compatible.
27 FLT X+25 LEN 12.5 AN+35 RL F200
28 FC DR+ R6 LEN10 AN-45
29 FCT DR- R15 LEN 15