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Locus of circular interpolation drive (example of CCW circulation)
■
CCW
Current position
Destination
Stop position
The locus of the circular interpolation drive runs
Quadrant
along the circumference having the distance between
Quadrant
1
the current position and circular center point as
2
its radius.
Quadrant
Quadrant
If the destination does not exist on the circumference,
0
3
the drive pauses at the position where the short axis
in the same quadrant as the destination matches.
Quadrant
Quadrant
After the DWIVE DELAY TIME elapses, the system moves
4
7
to the destination by linear interpolation drive.
Quadrant Quadrant
5
6
◆ Short axis of circular interpolation:
When the circular center point is (0, 0), the axis for which
the absolute value of the interpolation coordinate (X, Y) is smaller is the short axis.
◆ The 2-axis linear interpolation drive requires parameters to be set for X axis or Z axis (main
axis) linear acceleration/deceleration or S-curve acceleration/deceleration drive.
◆ The absolute address 2-axis circular interpolation drive requires the following drive parameters to
be set:
・ CEWTEW PCSITICW
: X-Y coordinate address of circular center point (for center-point circular
interpolation drive)
・ PASS PCSITICW
: X-Y coordinate address of circular passing point (for passing-point circular
interpolation drive)