HEIDENHAIN TNC 310 (286 140) - Manual (Page 91)

79 HEIDENHAIN TNC 310
6.5 P
ath Cont
ours
—
P
olar Coor
dinat
es
Straight line LP
The tool moves in a straight line from its current position to the
straight-line end point. The starting point is the end point of the
preceding block.
ú Select straight line function: Press the L soft key
ú Select entry of polar coordinates: Press the P soft
key (2nd soft-key row). Polar coordinates-radius PR:
Enter the distance from the pole CC to the straight-
line end point.
ú Polar-coordinates angle PA: Angular position of the
straight-line end point between –360° and +360°
The sign of PA depends on the angle reference
axis:
Angle from angle reference axis to PR is
counterclockwise: PA>0
Angle from angle reference axis to PR is clockwise:
PA<0
Example NC blocks
12 CC X+45 Y+25
13 LP PR+30 PA+0 RR F300 M3
14 LP PA+60
15 LP IPA+60
16 LP PA+180
Circular path CP around pole CC
The polar coordinate radius PR is also the radius of the arc. It is
defined by the distance from the starting point to the pole CC. The
last programmed tool position before the CP block is the starting
point of the arc.
ú Select circle functions: Press the „CIRCLE“ soft key
ú Select circular path C: Press the C soft key
ú Select entry of polar coordinates: Press the P soft
key (2nd soft-key row).
ú Polar coordinates angle PA: Angular position of the
arc end point between –5400° and +5400°
ú Direction of rotation DR
X
Y
45
25
60°
60°
30
CC
X
Y
25
25
R20
CC
6.5 P
ath Cont
ours
—
P
olar Coor
dinat
es