
B–63503EN–1/01
6. INTERPOLATION FUNCTION
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The amount of travel of a rotary axis specified by an angle is once
internally converted to a distance of a linear axis along the outer surface
so that linear interpolation or circular interpolation can be performed with
another axis. After interpolation, such a distance is converted back to the
amount of travel of the rotary axis.
The cylindrical interpolation function allows the side of a cylinder to be
developed for programming. So programs such as a program for
cylindrical cam grooving can be created very easily.
Use parameter No. 1022 to specify whether the rotation axis is the X–, Y–,
or Z–axis, or an axis parallel to one of these axes.
Only one rotation axis can be set for cylindrical interpolation.
#7
1006
#6 #5 #4 #3 #2 #1
ROSx
#0
ROTx
NOTE
When this parameter is changed, turn off the power before
continuing operation.
[Data type] Bit axis
ROTx, ROSx Setting linear or rotation axis
ROSx ROTx Description
0 0
Linear axis
@ Inch/metric conversion is done.
@ All coordinate values are linear axis type.
(Not rounded in 0 to 360_)
@ Stored pitch error compensation is linear axis type (Refer to pa-
rameter No. 3624)
0 1
Rotation axis (A type)
@ Inch/metric conversion is not done.
@ Machine coordinate values are rounded in 0 to 360_ Absolute
coordinate values and relative coordinate values are rounded or
not rounded by parameter No. 1008#0 and #2.
@ Stored pitch error compensation is the rotation type (Refer to
parameter No. 3624)
@ Automatic reference position return (G28, G30) is done in the
reference position return direction and the move amount does
not exceed one rotation.
1 0 Setting is invalid (unused)
1 1
Rotation axis (B type)
@ Inch/metric conversion is not done.
@ Machine coordinate values is linear axis type (Is not rounded in
0 to 360_). Absolute coordinate values and relative coordinate
values are rounded or not rounded by parameter No. 1008#0
and #2.
@ Stored pitch error compensation is linear axis type (Refer to pa-
rameter No. 3624).
@ Cannot be used with the rotation axis roll over function and the
index table indexing function (M series).
6.8
CYLINDRICAL
INTERPOLATION
General
Parameter