Specifications

6 - 1
CHAPTER 6 EXERCISE (2) 1-AXIS POSITIONING OPERATION USING SEQUENCE
PROGRAM
The OPR and positioning operation are carried out by the sequence program of the
PLC CPU.
6.1 Positioning System Used in Exercise
1-axis positioning operation system
Forward
run pulse
Reverse
run pulse
(X axis)
Servo
amplifier
M
0
Forward
run
Table
Reverse
run
10 mm/rev
Ball screw
Stroke
MAX150 mm
131072 pulses per one rotation of motor
Ball screw lead 10mm
Gear ratio 1:1
PLG
(X axis)
MR-J2S
HC-MFS
Q
0
2
H
C
P
U
Q
X
42
Q
Y
42
P
Q
D
75
D
4
Q
61
P
A
1
Q
64
A
D
Q
62
D
A
Electronic gear
CMX:16
CDV:1
X0A0
to
X0BF
Y0A0
to
Y0BF
*: Since the feedback pulse of the servomotor HC-MFS (generates 131072 pulses per rotation) exceeds the
Q75 parameter setting range of 65535 pulses, in this example 8192 pulses are set and multiplied by 16 with
the electronic gear of the servo amplifier to obtain 131072 pulses.