Mitsubishi Electric MELSEC-L Series, User Manual

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Chapter 9 Major Positioning Control
Positioning data setting examples
[When "2-axis circular interpolation control with center point designation (ABS
circular right, ABS circular left)" is set in positioning data No. 1 of axis 1]
• Reference axis ............. Axis 1
• Interpolation axis.......... Axis 2 (The required values are also set in positioning
data No. 1 of axis 2.)
Axis
Setting item
LD77MS2/LD77MS4
setting example
LD77MS16
setting example
Setting details
Axis 1
(reference
axis)
Axis 2
(interpolation
axis)
Axis 1
(reference
axis)
Axis 2
(interpolation
axis)
A
xi
s 1
P
os
iti
oni
ng dat
a No.
1
Da.1
Operation pattern
Positioning
complete
–
Positioning
complete
–
Set "Positioning complete" assuming the next
positioning data will not be executed.
Da.2
Control method
ABS circular
right
ABS circular
left
–
ABS circular
right
ABS circular
left
–
Set absolute system, 2-axis circular
interpolation control with center point
designation. (Select clockwise or
counterclockwise according to the control.)
Da.3
Acceleration time No.
1 – 1 –
Designate the value set in "
Pr.25
Acceleration
time 1
" as the acceleration time at start.
Da.4
Deceleration time No.
0 – 0 –
Designate the value set in "
Pr.10
Deceleration
time 0
" as the deceleration time at deceleration.
Da.5
Axis to be interpolated
LD77MS2 LD77MS4
Axis 2 –
Set the axis to be interpolated (partner axis).
If the self-axis is set, an error will occur.
Da.6
Positioning address/
movement amount
8000.0

m 6000.0

m 8000.0

m 6000.0

m
Set the positioning address. (Assuming "mm"
is set in "
Pr.1
Unit setting
".)
Da.7
Arc address
4000.0

m 3000.0

m 4000.0

m 3000.0

m
Set the arc address (center point address).
(Assuming that the "
Pr.1
Unit setting
" is set to
"mm".)
Da.8
Command speed
6000.00
mm/min
–
6000.00
mm/min
–
Set the speed when moving to the end point
address. (Designate the composite speed in
"
Pr.20
Interpolation speed designation method
".)
Da.9
Dwell time /JUMP
destination positioning
data No.
500ms – 500ms –
Set the time the machine dwells after the
positioning stop (command stop) to the output
of the positioning complete signal.
Da.10
M code /Condition
data No./Number of
LOOP to LEND
repetitions
10 – 10 –
Set this when other sub operation commands
are issued in combination with the No.1
positioning data.
Da.20
Axis to be interpolated
No.1
LD77MS16
Axis 2 –
Set the axis to be interpolated.
If the self-axis is set, an error will occur.
Da.21
Axis to be interpolated
No.2
LD77MS16
– –
Setting not required (setting value is ignored).
Da.22
Axis to be interpolated
No.3
LD77MS16
– –
(Note): Refer to Section 5.3 "List of positioning data" for information on the setting details.
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 Simple Motion module during interpolation control.)