HEIDENHAIN ITNC 530 User Manual

240 Programming: Programming Contours
6.4 Path contours—Cartesian coordinates
Central angle CCA and arc radius R
The starting and end points on the contour can be connected with four
arcs of the same radius:
Smaller arc: CCA<180°
Enter the radius with a positive sign R>0
Larger arc: CCA>180°
Enter the radius with a negative sign R<0
The direction of rotation determines whether the arc is curving
outward (convex) or curving inward (concave):
Convex: Direction of rotation DR– (with radius compensation RL)
Concave: Direction of rotation DR+ (with radius compensation RL)
Example NC blocks
or
or
or
X
Y
ZW
R
R
40
40 70
1
2
DR+
DR
X
Y
40
40 70
DR+
4
ZW
3
R
R
DR
10 L X+40 Y+40 RL F200 M3
11 CR X+70 Y+40 R+20 DR- (ARC 1)
11 CR X+70 Y+40 R+20 DR+ (ARC 2)
11 CR X+70 Y+40 R-20 DR- (ARC 3)
11 CR X+70 Y+40 R-20 DR+ (ARC 4)
The distance from the starting and end points of the arc
diameter cannot be greater than the diameter of the arc.
The maximum radius that can be entered directly is
99.9999 m, with Q parameter programming 210 m.
You can also enter rotary axes A, B and C.

HEIDENHAIN ITNC 530 Specifications

General

Control Type	CNC
Look-ahead	Yes
Spindle control	Yes
Touch probe cycles	Yes
Operating voltage	24 V DC
Programming	Conversational and DIN/ISO programming
Interpolation	Linear, Circular, Helical
Data Interface	Ethernet, USB, RS-232
Memory	1 GB
Programming Language	HEIDENHAIN plain language
Operating Modes	Manual, Automatic, MDA
Software Options	Various software options available