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38
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System configutration and wiring
CN I/F Connector
Interface Circuit (Input Circuit)
PI Command pulse
input circuit
① Line Driver I/F
・ This is a good signal transmission method
that is less sensitive to noises. We rec-
ommend you to use this to maintain the
reliability of signals.
② Open Collector I/F
・ This uses an external control power supply(VDC).
・ This requires a current-limiting resistor
corresponding to the capacity of the VDC
value.
PI
SI Connecting to
se quence input signals
・ Connect to a contact of switch and relay,
or a transistor of an open collector output.
・ Use a switch or relay for micro current so
that insufficient contact can be avoided.
・ Lower limit of the power supply (12 to
24V) should not be less than 11.4V in
order to secure the appropriate level of
primary current of the photo coupler.
SI
V
DC
R value
12V
1k Ω 1/4W
24V
2k Ω 1/4W
12~24V
7 COM+ 4.7K
SRV-ONなど
リレー
7 COM+ 4.7K
12~24V
SRV-ONなど
AM26LS31相当品
3 PULS1
PULS2
SIGN1
SIGN2
GND
220
220
4
5
6
13
PULS1
PULS2
SIGN1
GND
SIGN2
220
220
V
DC
R
R
3
4
5
6
13
①
②
shows a pair of twisted wires.
V
DC
− 1.5
R + 220
≒ 10mA
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