Mitsubishi Electric MELSECQ Series User Manual page 174

9 POSITIONING CONTROL
Setting item
Da. 1 Operation pattern
Da. 2 Control method
Da. 3 ACC/DEC time
Da. 4 DEC/STOP time
Da. 5 Command speed
Positioning address/
Da. 6
movement amount
Da. 7 Dwell time
Refer to "Section 4.5 List of positioning data" for the setting details.
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[2] 1-axis linear control (INC)
Operation chart
In incremental system 1-axis linear control, addresses established by a machine
OPR control are used. Position control is carried out from the current stop position
(start point address) to a position at the end of the movement amount set in " Da. 6
Positioning address/movement amount". The movement direction is determined by
the sign of the movement amount.
Reverese direction
Movement direction for
a negative movement amount
Example
When the start point address is 5000, and the movement amount is -7000, position control is carried
out to the -2000 position.
-3000 -2000
Positioning data setting example
The following table shows setting examples when "1-axis linear control (INC)" is set
in positioning data No. 1 of axis 1.
Setting example
Positioning
termination
1-axis linear
control (INC)
1000ms
1000ms
50000pulse/s Set the speed during movement.
-7000pulse
500ms
search engine
Address after positioning control
-1000 0 1000 2000 3000 4000
Positioning control in the reverse direction (movement amount -7000)
Set "Positioning termination" assuming the next positioning data will not
be executed.
Set incremental system 1-axis linear control.
Set the acceleration/deceleration time for position control.
Set the deceleration stop time for position control.
Set the movement amount.
Set the time the machine dwells after the position control stop (pulse
output stop) to the output of the positioning complete signal.
MELSEC-Q
Start point address
(current stop position)
Movement direction for
a positive movement amount
Start point address
(current stop position)
5000 6000
Setting details
Forward direction
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