Mitsubishi Electric QD75P1N User Manual page 392

9 MAJOR POSITIONING CONTROL
Setting item
Da.1 Operation pattern
Da.2 Control system
Acceleration time
Da.3
No.
Deceleration time
Da.4
No.
Axis to be
Da.5
interpolated
Positioning address/
Da.6
movement amount
Da.7 Arc address
Da.8 Command speed
Da.9 Dwell time
Da.10 M code
Refer to Section 5.3 "List of positioning data" for information on the setting details.
Positioning data setting examples
[Reference axis and interpolation axis are designated as axis 1 and axis 2,
respectively.]
The following table shows setting examples when "2-axis circular interpolation
control with center point designation (ABS right arc, ABS left arc)" is set in
positioning data No. 1 of axis 1. (The required values are also set in positioning
data No. 1 of axis 2.)
Axis 1 Axis 2
Axis
(reference (interpolation
axis) setting axis) setting
example example
Positioning
complete
ABS circular
right
ABS circular
left
1
0
Axis 2
8000.0  m 6000.0  m
4000.0  m 3000.0  m
6000.00
mm/min
500ms
10
POINT
Set a value in " Da.8 Command speed" so that the speed of each axis does not
exceed the " Pr.8 Speed limit value". (The speed limit does not function for the
speed calculated by the QD75 during interpolation control.)
Set "Positioning complete" assuming the next positioning
–
data will not be executed.
Set absolute system, 2-axis circular interpolation control
– with center point designation. (Select clockwise or
counterclockwise according to the control.)
Designate the value set in " Pr.25 Acceleration time 1"
–
as the acceleration time at start.
Designate the value set in " Pr.10 Deceleration time 0"
–
as the deceleration time at deceleration.
Set the axis to be interpolated (partner axis).
–
If the self-axis is set, an error will occur.
Set the positioning address. (Assuming "mm" is set in
" Pr.1 Unit setting".)
Set the arc address. (Assuming that the " Pr.1 Unit
setting" is set to "mm".)
Set the speed when moving to the end point address.
– (Designate the composite speed in " Pr.20 Interpolation
speed designation method".)
Set the time the machine dwells after the positioning stop
– (pulse output stop) to the output of the positioning complete
signal.
Set this when other sub operation commands are issued in
–
combination with the No. 1 positioning data.
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MELSEC-Q
Setting details