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2 f undamentals of p a th f unctions – HEIDENHAIN iTNC 530 (606 42x-02) User Manual

Page 217

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HEIDENHAIN iTNC 530

217

6.2 F

undamentals of P

a

th F

unctions

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 227)o
r approach block (APPR
block, see "Contour Approach and Departure", page 219).

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