Справочник Пользователя для Mitsubishi Electronics QD75MH2

 
 

 

9 - 24 

MELSEC-Q

 

9   MAJOR POSITIONING CONTROL 

 

POINT 

 

•

 When the "reference axis speed" is set during interpolation control, set so the 

major axis side becomes the reference axis. If the minor axis side is set as the 
reference axis, the major axis side speed may exceed the "

Pr.8

 Speed limit 

value". 

 

 Limits to interpolation control 

 

There are limits to the interpolation control that can be executed and speed 
(

Pr.20

Interpolation speed designation method) that can be set, depending on 

the "

Pr.1

 Unit setting" of the reference axis and interpolation axis. (For example, 

circular interpolation control cannot be executed if the reference axis and 
interpolation axis units differ.) 
The following table shows the interpolation control and speed designation limits.  

 

Pr.1

Unit setting  1 

"

Da.2

 Control system" 

interpolation control 

Pr.20

Interpolation speed 
designation method 

Reference axis and interpolation 
axis units are the same, or a 
combination of "mm" and "inch". 

3 

Reference axis and 
interpolation axis units 
differ  3 

Composite speed 

 

 

Linear 2 (ABS, INC)  
Fixed-feed 2 

Reference axis speed 

 

 

Composite speed 

  2 

 

Circular sub 

(ABS, INC) 

Circular right 

(ABS, INC) 

Circular left 

(ABS, INC)  Reference axis speed 

 

 

Composite speed 

 

 

Linear 3 (ABS, INC) 
Fixed-feed 3 

Reference axis speed 

 

 

Composite speed 

 

 

Linear 4 (ABS, INC) 
Fixed-feed 4 

Reference axis speed 

 

 

 

     : Setting possible,   : Setting not possible. 
    1 "mm" and "inch" unit mix possible. 
    2 "degree" setting not possible. A "Circular interpolation not possible (error code: 535)" will occur and the position 

cannot start if circular interpolation control is set when the unit is "degree". The machine will immediately stop if 
"degree" is set during positioning control.  

    3 The unit set in the reference axis will be used for the speed unit during control if the units differ or if "mm" and "inch" 

are combined.  

 
 

 Axis operation status during interpolation control 

 

"In interpolation" will be stored in the "

Md.26

 Axis operation status" during 

interpolation control. "Standing by" will be stored when the interpolation operation 
is terminated. Both the reference axis and interpolation axis will carry out a 
deceleration stop if an error occurs during control, and "error occurring" will be 
stored in the operation status.