HEIDENHAIN SW 548328-05 DIN Programming - Manual (Page 271)

HEIDENHAIN MANUALplus 620, CNC PILOT 620/640
271
4.1
7
Cont
our
-based t
u
rn
ing cy
cles
The Control uses the tool definition to distinguish between external
and internal machining.
Parameters
V Identifier start/end (default: 0) A chamfer/rounding arc is
machined:
 0: At beginning and end
 1: At beginning
 2: At end
 3: No machining
 4: Chamfer/rounding arc is machined—not the basic
element (prerequisite: Contour section with one element)
B Contour calculation
 0: Automatic
 1: Tool to the left (G41)
 2: Tool to the right (G42)
D Omit elements (see figure)
J aß (radius value)—active only if no blank has been defined.
H Contour-parallel—Type of cutting paths:
 0: Constant machining depth
 1: Equidistant cut lines
HR Specify primary machining direction
XA, ZA Starting point of blank (only effective if no blank was
programmed):
 XA, ZA not programmed: The workpiece blank contour is
calculated from the tool position and the ICP contour.
 XA, ZA programmed: Definition of the corner point of the
workpiece blank.
 The tool radius compensation: is active.
 A G57 oversize enlarges the contour (also inside
contours).
 A G58 oversize
 >0: Enlarges the contour
 <0: Is not offset
 G57/G58 oversizes are deleted after cycle end.