
6. INTERPOLATION FUNCTION
B–64113EN–1/01
324
r=50mm
End point
Start point
r=50mm
Y
X
(Example) (M series)
For arc (1) (less than 180_)
G91 G02 X60.0 Y20.0 R50.0
F300.0 ;
For arc (2) (greater than 180_ )
G91 G02 X60.0 Y20.0 R–50.0
F300.0 ;
(1)
(2)
NOTE
1 Specifying an arc center with addresses I, K, and J
When the distance from the arc start point to the arc center
is specified with addresses I, K, and J, a P/S alarm (No.
5059) is issued if:
Example:
When IS–B and metric input are selected, issuing the
following command (radius specification) will result in the
issue of a P/S alarm (No. 5059):
2 Tool nose radius compensation
In tool nose radius compensation mode, a P/S alarm (No.
5059) is issued if the distance from the tool nose radius
center to the arc center exceeds the maximum value which
can be specified.
I
2
)K
2
Ǹ
Maximum value which can be specified <
G50 X0 Z0;
G18 G02 X11.250 Z10. I–800000.000 K900000.000 F5.0;
I
2
)K
2
Ǹ
+ (–800000.000)
2
)900000.000
2
Ǹ
N
= 1204159.458
> 999999.999