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MELSEC-Q
9 POSITIONING CONTROL
9.1.2 Operation patterns of positioning controls
"Positioning control" starts with positioning data No. 1 and allows you to set in "
Da. 1
Operation pattern" whether the subsequent consecutive data will be executed
continuously or not. There are the following three different "operation patterns" [1] to
[3].
• Termination [1] Positioning termination (operation pattern: 0)
• Continuation [2] Continuous positioning control (operation pattern: 1)
[3] Continuous path control (operation pattern: 2)
The following shows examples of operation patterns when "1-axis linear control (ABS)"
is set in positioning data No. 1 to No. 6 of axis 1. Details of each operation pattern are
shown on the following pages.
<Operation example when "1-axis linear control (ABS)" is set in the
positioning data of axis 1>
(Direction in which axis 1 addresses increase)
1-axis linear control (ABS)
(One motor is driven, and positioning control is carried out to an addresses designated in one direction.)
Speed
Positioning data No.1
0
Operation pattern = 2: Continuous path control
Positioning control to address [A] at command speed [a]
No.2
No.3
No.4
No.5
Address
a
b
NO.1
No.2 No.3 No.4 No.5
Speed is changed
without stopping
The machine stops, and
then continues the next
positioning control.
Positioning control is terminated
No.6
Control stop
11
11
01
01
00
Time
Da.1 Operation pattern
(Positioning data)
(Setting details)
Positioning control to address [C] at command speed [a]
Positioning control to address [D] at command speed [b]
Positioning control to address [E] at command speed [a]
Positioning control to address [F] at command speed [a]
Positioning control to address [B] at command speed [b]
Operation pattern = 2: Continuous path control
Operation pattern = 1:
Continuous positioning control
Operation pattern = 0: Positioning termination
Operation pattern = 2: Continuous path control
Operation pattern = 1:
Continuous positioning control
A
E
D
C
BF
For
Start
POINT
The positioning data of the QD70 is started from positioning data No. 1 by setting
"0" in "
Cd. 3
Start method".
(It cannot be started from any positioning data of No. 2 to No. 10.)
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