HEIDENHAIN iTNC 530 (60642x-04) ISO programming - Manual (Page 215)

HEIDENHAIN iTNC 530 215
6.2
Fundamentals
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: G02/G12
Counterclockwise direction of rotation: G03/G13
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 220).
Pre-positioning
Before running a part program, always pre-position the tool to prevent
the possibility of damaging it or the workpiece.
G02/G12
G03/G13
X
Z
Y