
PROGRAMMING
B–63194EN/02
4. INTERPOLATION FUNCTIONS
49
In spiral or conical interpolation, R for specifying an arc radius cannot be
specified.
Corner deceleration between the spiral/conical interpolation block and
other blocks can be performed.
The functions of feed per rotation, inverse time feed, F command with one
digit, and automatic corner override cannot be used.
A program including spiral or conical interpolation cannot be restarted.
A program including spiral or conical interpolation cannot be retraced.
–120
–100
–80
–60
–40
–20
0
20
40
60
80
100
120
–120–100 –80 –60 –40 –20 0 20 40 60 80 100 120
20. 20.
Y axis
X axis
The path indicated above is programmed with absolute and incremental
values, as shown below:
This sample path has the following values:
⋅ Start point : (0, 100.0)
⋅ End point (X, Y) : (0, –30.0)
⋅ Distance to the center (I, J) : (0, –100.0)
⋅ Radius increment or decrement (Q) : –20.0
⋅ Number of revolutions (L) : 4.
(1)With absolute values, the path is programmed as follows:
G90 G02 X0 Y–30.0 I0 J–100.0
Q–20.0
L4
F300;
(2)With incremental values, the path is programmed as follows:
G91 G02 X0 Y–130.0 I0 J–100.0
Q–20.0
L4
F300;
(Either the Q or L setting can be omitted.)
Limitations
D Radius
D Corner deceleration
D Feed functions
D Program restart
D Retrace
Examples
D Spiral interpolation