Specifications

7 - 1
CHAPTER 7 EXERCISE (3) 3-AXIS POSITIONING OPERATION USING SEQUENCE
PROGRAM
(1) Interpolation axis
The 2- to 4-axis linear interpolation and 2-axis circular interpolation operation
generate the positioning data to the reference axis and set the required items to
the interpolation axis.
1) For 2-axis interpolation control, specify the interpolation axis in the "axis to be
interpolated" of the positioning data of the reference axis side.
Axis definition
Control system
Reference axis Interpolation axis
2-axis linear interpolation control,
2-axis fixed-feed control, 2-axis circular
interpolation control, 2-axis speed
control
Any of axes 1, 2, 3,
and 4
Axis set in "axis to be
interpolated" of
reference axis
2) For 3-axis interpolation control, the interpolation axis is automatically
specified for the reference axis.
Axis definition
Control system
Reference axis Interpolation axis
Axis 1 Axis 2, Axis 3
Axis 2 Axis 3, Axis 4
Axis 3 Axis 4, Axis 1
3-axis linear interpolation control,
3-axis fixed-feed control, 3-axis speed
control
Axis 4 Axis 1, Axis 2
Axis 1 Axis 2, Axis 3, Axis 4
Axis 2 Axis 3, Axis 4, Axis 1
Axis 3 Axis 4, Axis 1, Axis 2
4-axis linear interpolation control,
4-axis fixed-feed control, 4-axis speed
control
Axis 4 Axis 1, Axis 2, Axis 3
(2) Interpolation speed
The interpolation speed has the composite speed and the reference axis speed,
and the initial value is the composite speed. However, the value can be changed
to the reference axis speed with the "interpolation speed designation method" of
the detailed parameters (1).
1) Composite speed : Interpolated with the speed to the vector generated by
the movement of the reference axis and interpolation
axis.
2) Reference axis speed : Interpolated with the speed of the reference axis.
(Set so the major axis side becomes the reference
axis.)
(3) Interpolation control continuous positioning
When carrying out interpolation control in which the "continuous positioning
control" and "continuous path control" are designated as the operation pattern,
interpolation control must be set for the positioning methods of all positioning data
from the started positioning data to the positioning data for which "positioning
complete" is set.