
PROGRAMMING
B–63004EN/02
4. INTERPOLATION FUNCTIONS
49
The distance between an arc and the center of a circle that contains the arc
can be specified using the radius, R, of the circle instead of I, J, and K.
In this case, one arc is less than 180
°, and the other is more than 180° are
considered. An arc with a sector angle of 180
° or wider cannot be
specified. If Xp, Yp, and Zp are all omitted, if the end point is located at
the same position as the start point and when R is used, an arc of 0
° is
programmed
G02R ; (The cutter does not move.)
r=50mm
End point
Start point
r=50mm
X
Z
For arc (1) (less than 180°)
G02 W60.0 U10.0 R50.0
F300.0 ;
For arc (2) (greater than 180°)
An arc with a sector angle of 180°
or wider cannot be specified
within a single block.
(2)
(1)
When the option for specifying arc radius R with nine digits is selected,
the valid radius range for circular interpolation is expanded as follows:
Input increments
Metric input Inch input
Incre- IS–B 0.001 to 999999.999 mm 0.0001 to 99999.9999 inch
ment
system
IS–C 0.0001 to 99999.9999 mm 0.00001 to 9999.99999 inch
D Arc radius
D Expanded valid range of
arc radius