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MELSEC-A
9   MAIN POSITIONING CONTROL 
 
 Restrictions 
 
(1)  An error "Continuous path control not possible" (error code: 516) will occur and 
the operation cannot start if "continuous path control" is set in "
Da.1  
Operation pattern". ("Continuous path control" cannot be set in fixed-
dimension feed control.) 
(2)  "Fixed-dimension feed" cannot be set in " Da.2  Control method" in the 
positioning data when "continuous path control" has been set in " Da.1  
Operation pattern" of the immediately prior positioning data. (For example, if 
the operation pattern of positioning data No. 1 is "continuous path control", 
fixed-dimension feed control cannot be set in positioning data No. 2.) An error 
"Continuous path control not possible" (error code: 516) will occur and the 
machine will carry out a deceleration stop if this type of setting is carried out.  
 
 Positioning data setting example 
 
The following table shows setting examples when "1-axis fixed-dimension feed 
control (fixed-dimension feed 1)" is set in positioning data No. 1 of axis 1.  
 
Setting item 
Setting example
Setting details 
Axis 1   Positio
ning data N
o. 1
 
Da.1
 
Operation pattern 
Positioning 
complete 
Set "Positioning complete" assuming the next positioning data will not 
be executed. 
Da.2
 
Control method 
Fixed-dimension 
feed 1 
Set 1-axis fixed-dimension feed control. 
Da.3
 
Acceleration time 
No. 
Designate the value set in "
Pr.26  Acceleration time 1" as the 
acceleration time at start. 
Da.4
 
Deceleration time 
No. 
Designate the value set in " Pr.9  Deceleration time 0" as the 
deceleration time at deceleration. 
Da.5
 
Positioning address/ 
movement amount 
80000.0
Set the positioning address. (Assuming "mm" is set in " Pr.1  Unit 
setting".) 
Da.6
 
Arc address 
– 
Setting not required (setting value will be ignored). 
Da.7
 
Command speed 
6000.00mm/min Set the speed during movement to the positioning address. 
Da.8
 
Dwell time 
500ms 
Set the time the machine dwells after the positioning stop (pulse output 
stop) to the output of the positioning complete signal. 
Da.9
 
M code 
10 
Set this when other auxiliary 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.