HEIDENHAIN ITNC 530 - CONVERSATIONAL PROGRAMMING - Page 207

HEIDENHAIN iTNC 530 207
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: 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 217)or approach block (APPR
block, see "Contour Approach and Departure", page 209).
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