HEIDENHAIN iTNC 530 (34049x-08) - Manual (Page 221)

HEIDENHAIN iTNC 530 221
6.2 F
undamentals of path functions
Direction of rotation DR for circular movements
When a circular path has no tangential transition to another contour
element, enter the direction of rotation as follows:
Clockwise direction of rotation: DR–
Counterclockwise direction of rotation: DR+
Radius compensation
The radius compensation must be in the block in which you move to
the first contour element. You cannot activate radius compensation in
a circle block. Activate it beforehand in a straight-line block (see "Path
contours—Cartesian coordinates", page 231) or approach block (APPR
block, see "Contour approach and departure", page 223).
Pre-positioning
Before running a part program, always pre-position the tool to prevent
the possibility of damaging it or the workpiece.
CC
CC
DR–
DR+
X
Z
Y