Interpolation Control; Type Of Interpolation Control (2-Axis Interpolation) - Panasonic AFP7MC16EC User Manual

Automatic Operation (Position Control)

8.2 Interpolation Control

8.2.1 Type of Interpolation Control (2-Axis Interpolation)

• The following types and operation specification methods are available for the 2-axis
interpolation.
• The axes in the relation of an interpolation are called 1st axis and 2nd axis for the 2-axis
interpolation. Also, the 1st axis and 2nd axis are automatically allocated from the smallest
axis number in ascending order.
 Type and operation specification method
Type Operation specification method
Composite speed
2-axis linear
interpolation
Long axis speed
control
Center point/CW direction
2-axis circular
Center point/CCW direction
interpolation
control
Pass point
 Positioning table and operation characteristics
• When specifying the long axis speed method, the composite speed is faster than the long
axis speed.
• In the case of the center point specification, the coordinate of the center point on arc is
specified as the data of 1st-axis (X-axis) auxiliary point and 2nd-axis (Y-axis) auxiliary point
of positioning data. Also, In the case of the pass point specification, the coordinate of the
pass point on arc is specified as the data of 1st-axis (X-axis) auxiliary point and 2nd-axis (Y-
axis) auxiliary point of positioning data.
• When the control method is increment, for the both center point and pass point, the
increment coordinate from the start point is specified.
• When the start point and the operation done point is the same, it performs one circular
operation when using the center point method. However, when using the pass point method,
an error occurs.
• In case of the pass point method, when the start point, pass point and operation done point
exist in the same straight line, an arc is not comprised, and an error occurs.
• In each interpolation control, the E-point control which uses one table, P-point control and C-
point control which uses multiple tables can be combined arbitrarily as positioning data. For
the P-point and C-point controls, the last table should be set as an end point.
REFERENCE
•
For details of E-point, P-point, and C-point controls, refer to "8.1.1 Patterns
of Position Control".
8-12
Necessary data
Composite speed of 1st axis and 2nd axis
Speed of long axis (Axis of which moving
distance is long)
Coordinates of 1st axis and 2nd axis of
center point
Coordinates of 1st axis and 2nd axis of
center point
Coordinates of 1st axis and 2nd axis of
pass point on arc