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9 MAJOR POSITIONING CONTROL
Setting item
Da.1 Operation pattern
Da.2 Control method
Da.3 Acceleration time 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
M code
Da.10
Refer to Section 5.3 "List of positioning data" for information on the setting details.
Positioning data setting example
[Reference axis is designated as axis 1.]
The following table shows setting examples when "4-axis fixed-feed control (fixed-
feed 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.)
Axis 1
Axis 2
Axis
(reference
(interpolation
axis) setting
axis) setting
example
example
Positioning
complete
Fixed-feed 4
1
0
–
4000.0 µ m
8000.0 µ m
–
6000.00
mm/min
500ms
10
POINTS
•
When the "reference axis speed" is set during 4-axis fixed-feed 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 "
value".
•
Refer to Section 9.1.6 "Interpolation control" for the reference axis and
interpolation axis combinations.
Axis 3
(interpolation
(interpolation
axis) setting
axis) setting
example
example
–
–
–
–
–
–
–
–
–
–
4000.0 µ m
3000.0 µ m
–
–
–
–
–
–
–
–
9 - 53
MELSEC-Q
Axis 4
Setting details
Set "Positioning complete"
–
assuming the next positioning
data will not be executed.
–
Set 4-axis fixed-feed 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.
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.
Set the positioning address.
(Assuming "mm" is set in
" Pr.1
Unit setting".)
Setting not required (setting
–
value will be ignored).
Set the speed during
–
movement.
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.
Pr.8
Speed limit
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