Mitsubishi Electric A173UHCPU Programming Manual page 202

7. POSITIONING CONTROL
[Program Example]
POINT
(1) Do not set the travel value to zero for fixed-pitch feed control.
The following results if the travel value is set to zero:
(a) If both axes are set to zero, the fixed-pitch feed ends with no feed
taking place.
(b) If the travel value is set to zero for one axis only, fixed-pitch feed
control will not occur at the normal positioning speed for the axis set
to a non-zero travel value.
This program conducts fixed-pitch feed control using 2-axes linear interpolation
under the conditions below.
(1) System configuration
Fixed-pitch feed control using 2-axes linear interpolation of Axis 2 and Axis 3.
A61P A273UH A278
LX
CPU
MR- -B MR- -B MR- -B MR- -B
Axis
Axis
1
M 2 M
(2) Positioning conditions
The fixed-pitch feed control conditions are shown below.
Item
Servo program number
Positioning speed
Controlled axis
Travel value
(a) Fixed-pitch feed control start command ....... leading edge of X000
A61P AX41
Start command (X000)
Axis
Axis
4
3 M M
Setting
No. 310
10000
Axis 2
500000
7 − 55
Axis 3
300000
(OFF → ON)