Auxiliary Point-Specified Circular Interpolation Control - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

5.6
Auxiliary Point-Specified Circular Interpolation
Control
Circular interpolation control by specification of the end point address and auxiliary point address (a point on the arc) for
circular interpolation is executed.
Auxiliary point-specified circular uses ABS
instructions.
: Must be set, : Set if required
Servo Positioning Number
instruction method of
control
axes
ABS Absolute
2
INC Incremental
*1 Only when the reference axis speed is specified
Processing details
■Control using ABS
• Circular interpolation from the current stop address (address before positioning) based on the home position through the
specified auxiliary point address to the end point address is executed.
• The center of the arc is the point of intersection of the perpendicular bisectors of the start point address (current stop
address) to the auxiliary point address, and the auxiliary point address to the end point address.
Forward direction
Start point address
(X Y )
,
Reverse 0 0
direction
0
Arc central point
Reverse direction
• The setting range of the end point address and auxiliary point address is (-2
(Absolute data method) and INC
Positioning data set in servo instructions
Common Arc
© ¨ ¨ ¨ © © ¨
(Absolute data method)
Operation by circular interpolation
End point address (X
Auxiliary point address (X , Y )
2 2
Forward direction
*: Indicates setting data.
(Incremental data method) servo
OSC Parameter block
© © © © © © © © © © ©
, Y )
1 1
31 31
) to (2 -1).

5.6 Auxiliary Point-Specified Circular Interpolation Control

Others
5 POSITIONING CONTROL
5
283