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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 by 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 address (positioning address) is 8000,
positioning is carried out in the positive direction for a movement amount of 7000 (8000-1000)
 
 
 Positioning data setting example 
 
The following table shows setting examples when "1-axis linear control (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. 
Designate the value set in "
Pr.25
 
Acceleration time 1" as the 
acceleration time at start. 
 Da.4  
Deceleration time 
No. 
Designate 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 
8000.0µm   Set 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/min Set 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. 
Ax
is 1   Positioning data N
o. 1 
 Da.10 
M code 
10 
Set this when other sub operation commands are issued in 
combination with the No. 1 positioning data. 
 
     Refer to Section 5.3 "List of positioning data" for information on the setting details.