
B–63523EN–1/03
6. INTERPOLATION FUNCTION
755
By specifying an intermediate point and end point for an arc, circular
interpolation can be performed in three–dimensional space.
As shown below, three points, namely, a start point (current position), a
specified intermediate point, and a specified end point uniquely define an
arc in three–dimensional space. Two blocks are used for specification.
One block specifies up to an intermediate point, and the other block
specifies up to an end point.
Intermediate point
(X1, Y1, Z1)
End point
(X2, Y2, Z2)
X
Z
Y
Start point
Fig. 6.20 Start point, intermediate point, and end point
RISC processor is necessary, if this function is used. Refer to Subsection
7.1.19 “RISC Processor Operation,” in this manual too.
#7
1401
#6 #5 #4 #3 #2
HTG
#1 #0
[Imput type] Parameter input
[Data type] Bit
HTG For helical interpolation/three–dimensional interpolation:
0 : The tangential feedrate of an arc/three–dimensional arc is used.
1 : The tangential feedrate involving a linear axis (specified axes other
than a circular interpolation axis in the case of three–dimensional
circular interpolation) is specified.
6.20
THREE–
DIMENSIONAL
CIRCULAR
INTERPOLATION (M
SERIES)
General
Parameter