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10 Input Wiring Procedures
10.2 24V DC input (Sink and source input type)
149
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
1
Introduction
2
Features and
Part Names
3
Product
Introduction
4
Specifications
5
Version and
Peripheral
Devices
6
System
Configuration
7
Input/Output
Nos., Unit Nos.
8
Installation
9
Preparation and
Power Supply
Wiring
10
Input Wiring
10.2.5 Examples of external wiring (sink input) [DC Power Supply Type]
X0
S/S
Main unit
X1
X0
S/S
X1
Input extension block
X0
S/S
0V
24V
Input/output powered extension unit
X1
X0
S/S
X1
Input extension block
5V 0V 24V
5V 0V 24V
Fuse
5V 0V 24V
5V 0V 24V
*1
*2
*3
*3
*4
Sink and source input type
Sink and source
input type
Three-
wire
sensor
Two-wire
proximity
sensor
Class D
grounding
Input
impedance
Input
terminal
Input
terminal
Input
terminal
Input
terminal
Handle the power supply circuit correctly in accordance with Chapter 9 "Preparation for Wiring and Power
Supply Wiring Procedures."
For an input device having a parallel resistance or a two-wire proximity switch, a bleeder resistance may be
required.
In the case of sink input wiring, short-circuit the terminals of the input/output powered extension units as
well as the S/S terminal and the terminal of the main unit.
Do not connect with 0V and 24V terminals.
*1
*2
*3
*4