9 Input Wiring Procedures
9.2 24 V DC input (Sink and source input type)
81
FX
3S
Series Programmable Controllers
User's Manual - Hardware Edition
1
Introduc
tion
2
Features an
d
Par
t N
am
es
3
Produc
t
Introducti
on
4
Specifi
cations
5
Ve
rsi
on and
Peri
pheral
De
vice
s
6
Sy
stem
Confi
gurati
on
7
Instal
lati
on
8
Preparati
on an
d
Pow
er Supply
Wi
ring
9
Input W
iri
ng
10
Hi
gh
-S
peed
Counters
9.2.4
Examples of external wiring [DC power type]
1. Sink input
2. Source input
*1.
Handle the power supply circuit correctly in accordance with Chapter 8 "Preparation for Wiring and
Power Supply Wiring Procedures."
*2.
For an input device having a parallel resistance or a two-wire proximity switch, a bleeder resistance
may be required.
*3.
In the case of sink input wiring, short-circuit the [S/S] terminal and the [+] terminal of the main unit.
In the case of source input wiring, short-circuit the [S/S] terminal and the [-] terminal of the main unit.
*4.
Do not connect with vacant terminal.
X0
S/S
•
•
X2
X1
Main unit
Fuse
Class D
grounding
Input
impedance
Input
terminal
Three-wire
sensor
*1
*3
*2
Two-wire
proximity sensor
*4
Main unit
Fuse
Class D
grounding
Input
impedance
Input
terminal
Three-wire
sensor
*1
*3
*2
Two-wire
proximity sensor
X0
S/S
•
•
X2
X1
*4
Содержание FX3S-10M series
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