Mitsubishi Electric MELSEC-L LD75P User Manual page 414

(c) Positioning data setting example
• Reference axis, circular interpolation axis, and linear interpolation axis are specified as axis 1, axis 2, and
axis 3, respectively.
The following table shows setting examples when "helical interpolation control with center point designation
(ABS helical right, ABS helical left)" is set in positioning data No. 1 of axis 1. (The required values are also set
in positioning data No. 1 of axis 2 and axis 3.)
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
Positioning
data No. 1
[Da.6] address/movement
amount
[Da.7] Arc address
[Da.8] Command speed
[Da.9] Dwell time
[Da.10] M code
*1 Refer to "List of Positioning Data ( Page 152, Section 5.3)" for information on the setting details.
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 LD75 during interpolation control.)
412
Axis 1 (reference Axis 2 (circular
axis) setting interpolation axis)
example setting example
Positioning

complete
ABS helical right

ABS helical left

1

0
Axis 2 
8000.0m 6000.0m
4000.0m 3000.0m

6000.00mm/min

500ms

10
Axis 3 (linear
interpolation axis)
setting example
Set "Positioning complete" assuming

that the next positioning data will not be
executed.
Set absolute system, 3-axis helical
interpolation control with center point
 designation. (Select clockwise or
counterclockwise according to the
control.)
Specify the value set in "[Pr.25]

Acceleration time 1" as the acceleration
time at start.
Specify 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 end point address. (Assuming
3000.0m
"mm" is set in "[Pr.1] Unit setting".)
Set the arc address. (Assuming "mm" is

set in "[Pr.1] Unit setting".)
Set the speed during movement to the
end point address. (Set the composite

speed in "[Pr.20] Interpolation speed
designation method".)
Set the time the machine dwells from
the positioning stop (pulse output stop)

to the output of the positioning complete
signal.
Set this item when other sub operation
commands are issued in combination
50 with the No. 1 positioning data.
Set the number of pitch for the linear
interpolation axis.
Setting details