Mitsubishi Electric SV13/22 Programming Manual page 200

7. POSITIONING CONTROL
Downloaded from ManualsNet.com
Control with INC
(1) Circular interpolation of an arc from the current stop address (start point
address, 0, 0) with a radius equivalent to the distance between the start point
(0, 0) and center point.
Reverse direction
Home position
Fig. 7.20 Circular Interpolation Control by Incremental Method (INC
(2) To conduct positioning control of a full circle, divide the circular interpolation
control into two operations.
Reverse direction
Home position
(3) The setting range for the center point and travel value to the end point is 0 to
±(2 −1).
31
(4) The maximum arc radius is 2
If the designated end point and center point result in a radius greater than
31 −1, an error occurs at the start and error code 109 is stored in the data
2
register.
search engine
and INC (incremental method)
Forward direction
Path of circular interpolation (for INC
Positioning speed
Start
point
Reverse direction
Forward direction
1st circular interpolation control
Center
of circle
0
Radius
0
2nd circular interpolation control
Reverse direction
Fig. 7.21 Positioning Control of a Full Circle
31 −1.
31
2 -1
Center
of arc
0
31
-2
0
Radius R
Fig. 7.22 Maximum Arc Radius
7 − 48
)
End address
Forward direction
Center of arc
* indicates set data
Forward direction
Maximum arc
31
2 -1
)