Mitsubishi Electric MELSEC-Q Series - Page 433

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Chapter 9 Major Positioning Control
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 control.

If the movement amount of each axis exceeds "1073741824 (=2
30
)" when "0:
Composite speed" is set in "[Pr.20] Interpolation speed designation method"
The error "Outside linear movement amount range" (error code: 504) occurs at a
positioning start.
(The maximum movement amount that can be set in "[Da.6] Positioning
address/movement amount" is "1073741824 (=2
30
)".)
Positioning data setting example
[When "2-axis linear interpolation control (ABS linear 2)" 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
Setting example
Setting details
Axis 1
(reference
axis)
Axis 2
(interpolation
axis)
Axis 1 Positioning data No. 1
[Da.1] Operation pattern
Positioning
complete
–
Set "Positioning complete" assuming the next
positioning data will not be executed.
[Da.2] Control method
ABS
linear 2
–
Set absolute system 2-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.6]
Positioning address/
movement amount
10000.0
m
4000.0
m
Set the end point address. (Assuming "mm" is set in
"[Pr.1] Unit setting".)
[Da.7] Arc address – – Setting not required (setting value is ignored).
[Da.8] Command speed
6000.00
mm/min
–
Set the speed during movement to the end point
address.
[Da.9]
Dwell time/JUMP
destination positioning
data No.
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 –
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
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
– –
Setting not required (setting value is ignored).
[Da.22]
Axis to be interpolated
No.3
– –
(Note): Refer to Section 5.3 "List of positioning data" for information on the setting details.
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 "[Pr.8] Speed
limit value".