Mitsubishi Electric MELSEC-L LD75D, Руководство пользователя

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377
CHAPTER 9 MAJOR POSITIONING CONTROL
9
9.
2 Set
ting t
he Pos
itioning
D
at
a
● When the "reference axis speed" is set during 4-axis linear interpolation control, set so the major axis side becomes the
reference axis. If the minor axis side is set as the reference axis, the major axis side speed may exceed the "[Pr.8] Speed
limit value".
●
Refer to

Page 359, Section 9.1.6 for the combination of the reference axis with the interpolation axis.
(2) 4-axis linear interpolation control (INC linear 4)
In incremental system 4-axis linear interpolation control, designated 4 axes are used. Linear interpolation
positioning of movement amount set in "[Da.6] Positioning address/movement amount" is carried out from the
current stop position (start point address). The movement direction is determined by the sign of the movement
amount.
(a) Positioning data setting example (Reference axis is designated as axis 1.)
The following table shows setting examples when "4-axis linear interpolation control (INC linear 4)" 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 3 and
axis 4.)
Refer to

Page 152, Section 5.3 for information on the setting details.
Setting item
Axis 1
(reference axis)
setting
example
Axis 2
(interpolation
axis) setting
example
Axis 3
(interpolation
axis) setting
example
Axis 4
(interpolation
axis) setting
example
Setting details
Positioning
data No.1
[Da.1] Operation pattern
Positioning
complete
  
Set "Positioning complete"
assuming that the next positioning
data will not be executed.
[Da.2] Control system INC linear 4   
Set incremental system 4-axis linear
interpolation control.
[Da.3]
Acceleration time
No.
1   
Designate the value set in "[Pr.25]
Acceleration time 1" as the
acceleration time at start.
[Da.4]
Deceleration time
No.
0   
Designate the value set in "[Pr.10]
Deceleration time 0" as the
deceleration time at deceleration.
[Da.5]
Axis to be
interpolated
   
Setting not required. (Setting value
will be ignored.)
When axis 1 is used as a reference
axis, the interpolation axes are axes
2, 3 and 4.
[Da.6]
Positioning
address/moveme
nt amount
4000.0

m 8000.0

m 4000.0

m 3000.0

m
Set the movement amount.
(Assuming "mm" is set in "[Pr.1] Unit
setting".)
[Da.7] Arc address
   
Setting not required. (Setting value
will be ignored.)
[Da.8] Command speed 6000.00mm/min
  
Set the speed during movement.
[Da.9] Dwell time 500ms   
Set the time the machine dwells
after the positioning stop (pulse
output stop) to the output of the
positioning complete signal.
[Da.10] M code 10
  
Set this when other sub operation
commands are issued in
combination with the No. 1
positioning data.