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10 Input Wiring Procedures
10.4 Input Interruption (I00
to I50
)
155
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
10.4.3 Examples of external wiring
It is recommended to use shielded twisted-pair cables for connection cables.
Ground the shield of each shielded cable only on the PLC side.
1. Examples of input interruption (I000 or I001) wiring using X000
When another input terminal is used, wire it according to the following diagrams.
1) When 24V DC service power supply is used
2) When 24V DC external power supply is used
S/S
L
N
24V
Class D grounding *
Fuse
Sink wiring
0V
X000
Three-wire
S/S
L
N
24V
Fuse
Source wiring
0V
X000
Three-
wire
* The grounding resistance should be 100Ω or less.
Class D grounding *
S/S
L
N
24V
Fuse
24V DC
Sink wiring
0V
X000
S/S
L
N
24V
Fuse
24V DC
Source wiring
0V
X000
Three-
wire
Three-wire
Class D grounding * Class D grounding *
* The grounding resistance should be 100 or less.