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MELSEC-Q
9 MAJOR POSITIONING CONTROL
9.2.2 1-axis linear control

In "1-axis linear control" (" Da.2 Control system" = ABS linear 1, INC linear 1), one

motor is used to carry out position control in a set axis direction.

[1] 1-axis linear control (ABS linear 1)
Operation chart

In absolute system 1-axis linear control, addresses established b y a machine OPR

are used. Positioning is carried out from the current stop position (start point

address) to the address (end point address) set in " Da.6 Positioning

address/movement amount".

0 1000 8000
Positioning control (movement amount 7000)
Start point address
(current stop position) End point address
(positioning address)
Example
When the start point address (current stop position) is 1000, and the end point ad dress (positioning address) is 8000,
positioning is carried out in the positive direction for a movement amoun t of 7000 (8000-1000)
Positioning data setting example

The following table shows setting examples when "1-axis linear co ntrol (ABS linear

1)" is set in positioning data No. 1 of axis 1.

Setting item Setting example Setting details
Da.1 Operation pattern Positioning
complete Set "Positioning complete" assuming the next positioning data will not
be executed.
Da.2 Control system ABS linear 1 Set absolute system 1-axis linear control.
Da.3 Acceleration time
No. 1Designate the value set in " Pr.25 Acceleration time 1" as the
acceleration time at start.
Da.4 Deceleration time
No. 0Designate the value set in " Pr.10 Deceleration time 0" as the
deceleration time at deceleration.
Da.5 Axis to be
interpolated Setting not required (setting value will be ignored).
Da.6 Positioning address/
movement amount 8000.0µmSet the positioning address. (Assuming "mm" is set in " Pr.1 Unit
setting".)
Da.7 Arc address Setting not required (setting value will be ignored).
Da.8 Command speed 6000.00mm/minSet the speed during movement to the positioning address.
Da.9 Dwell time 500ms Set the time the machine dwells after the positioning stop (pulse output
stop) to the output of the positioning complete signal.
Axis 1 Positioning data No. 1
Da.10M code 10 Set this when other sub operation commands are is sued in comb ination
with the No. 1 positioning data.
Refer to Section 5.3 "List of positioning data" for information on the setting details.