HEIDENHAIN SW 54843x-03 DIN Programming - Manual (Page 502)

502 DIN programming for the Y axis
6.1 Y
-axis cont
ours—F
undamentals
6.1 Y-axis contours—
Fundamentals
Position of milling contours
Define the reference plane or the reference diameter in the section
code. Specify the depth and position of a milling contour (pocket,
island) in the contour definition:
 With depth P programmed in the previous G308 cycle
 Alternatively on figures: Cycle parameter depth P
The algebraic sign of "P" defines the position of the milling contour:
 P<0: Pocket
 P>0: Island
 X: Reference diameter from the section code
 Z: Reference plane from the section code
 P: Depth from G308 or from the figure definition
Position of milling contour
Section
P Surface Milling floor
FACE P<0
P>0
Z
Z+P
Z+P
Z
REAR P<0
P>0
Z
Z–P
Z–P
Z
LATERAL P<0
P>0
X
X+(P*2)
X+(P*2)
X
The area milling cycles mill the surface specified in the
contour definition. Islands within this surface are not
taken into consideration.