Examples Of External Wiring - Mitsubishi Electric MELSEQ FX3S Series User Manual

FX Series Programmable Controllers
3S
User's Manual - Hardware Edition
9.3.3

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 24 V DC service power supply is used
Sink wiring
L
Class D grounding
N
S/S
0V
24V
X000
2) When 24 V DC external power supply is used
Sink wiring
L
Class D grounding
N
S/S
0V
24V
X000
The grounding resistance should be 100 Ω or less.
*1.
Fuse
*1
Three-wire
Fuse
*1
24 V DC
Three-wire
9 Input Wiring Procedures
9.3 Input Interruption (I00
Source wiring
Fuse
L
*1
Class D grounding
N
S/S
0V
24V
X000
Source wiring
Fuse
L
*1
Class D grounding
N
S/S
0V
24V
X000
 to I50  )
1
2
3
4
Three-wire
5
24 V DC
6
Three-wire
7
8
9
10
83