Mitsubishi Electric SV13/22 Programming Manual page 202

7. POSITIONING CONTROL
M9039
0
M9074
2
X000 M9074 M2009 M9076
4
M51
11
M9074 M53
13
CIRCUIT END
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(4) Operation timing
The operation timing for circular interpolation control using center point
designation is shown below.
PLC ready (M2000)
All axes servo start command
(M2042)
All-axis servo start accept flag
(M2009)
Positioning start command (X000)
SVST instruction
Axis 1 start accept flag (M2001)
Axis 2 start accept flag (M2002)
(5) Servo program
The servo program No. 51 for circular interpolation control using center point
designation is shown below.
<K 51>
ABS
Axis 1,
Axis 2,
Speed
Center
point 1,
Center
point 2,
(6) Sequence program
The sequence program which runs the servo program is shown below.
M2001
M2002
search engine
V
Circular interpolation control using center point
78541
designation
30000
Axis used
1000
End point address
45000
20000 Positioning speed
Center point address
M2000
M2042
M51
PLS
SET M53
K
SVST J1J2 51
M53
RST
7 − 50
Servo program No. 51
Axis 1,Axis 2
1 78541
Axis
2 30000
Axis
1000
1 45000
Axis
2 20000
Axis
Turns ON PLC ready.
Turns ON all axes servo start
command.
Turns ON servo program No. 51
start command flag (M53) when
X000 turns OFF → ON.
Servo program No. 51 execution
request.
Turns OFF M53 on completion
of servo program No. 51 execution
request.