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2 f undamentals of path functions – HEIDENHAIN iTNC 530 (34049x-08) ISO programming User Manual

Page 211

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HEIDENHAIN iTNC 530

211

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: 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 216).

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