Mitsubishi Electric MELSEC Q Series Programming Manual page 251

6 POSITIONING CONTROL
INH
Radius-specified
helical interpolation
less than CW 180°
INH
Radius-specified
helical interpolation
less than CCW 180°
INH
Radius-specified
helical interpolation
CW 180° or more
INH
Radius-specified
helical interpolation
CCW 180° or more
Control details for the servo instructions are shown below.
Rotation direction
Instruction
of servo motor
Clockwise (CW)
Counter
clockwise (CCW)
Clockwise (CW)
Counter
clockwise (CCW)
(1) The setting range of end point relative address for the both of circular interpolation
axis and linear interpolation axis is 0 to (2
The travel direction is set by the sign (+/ -) of the travel value, as follows:
• Positive travel value .............Positioning control to forward direction
• Negative travel value............Positioning control to reverse direction
(2) The maximum arc radius on the circular interpolation plane is 2
For example, the maximum arc radius for electronic gear 1:1 of unit [mm] is
214748364.7[ µm].
Controllable angle of
arc
0° < < 180°
180°   360°
31
(Address increase direction)
(Address decrease direction)
2 -1
31
Arc central point
0
-2 2
31
Radius R
6 - 64
Positioning pass
Start
<180
point
Radius R
Central point
Central point
Radius R
<180
Start
point
180 < < 360
Radius R
Start point
Start point
Radius R
180 < < 360
-1).
-1.
31
Maximum arc
-1
31
Positioning path
End point
End point
Positioning path
Positioning path
Central point
End point
End point
Central point
Positioning path