Mitsubishi Electric MELSEC-Q QD75M User Manual page 393

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
M code
Da.10
Refer to Section 5.3 "List of positioning data" for information on the setting details.
Restrictions
An error will occur and the positioning will not start in the following cases. The
machine will immediately stop if the error is detected during a positioning
operation.
•
If the movement amount of each axis exceeds "1073741824 (=2
Composite speed" is set in "
... The "Outside linear movement amount range error (error code: 504)" occurs
at a positioning start.
(The maximum movement amount that can be set in "
address/movement amount" is "1073741824 (=2
Positioning data setting example
[Reference axis and interpolation axis are designated as axis 1 and axis 2,
respectively.]
The following table shows setting examples when "2-axis linear interpolation
control (INC linear 2)" 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
INC linear 2
1
0
2
9000.0 µ m -3000.0 µ m
–
6000.00
mm/min
500ms
10
POINT
•
When the "reference axis speed" is set during 2-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 "
limit value".
Pr.20
Interpolation speed designation method"
Set "Positioning complete" assuming the next positioning
–
data will not be executed.
– Set incremental system 2-axis linear interpolation control.
Designate the value set in " Pr.25
–
the acceleration time at start.
Designate the value set in " Pr.10
–
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 movement amount. (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.
9 - 32
MELSEC-Q
30
)" when "0:
Da.6
Positioning
30
)".)
Setting details
Acceleration time 1" as
Deceleration time 0"
Pr.8
Speed