Examples Of External Wiring [Ac Power Type] - Mitsubishi Electric MELSEQ FX3S Series User Manual

FX Series Programmable Controllers
3S
User's Manual - Hardware Edition
9.2.3

Examples of external wiring [AC power type]

1. Sink input
Main unit
2. Source input
Main unit
*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 [24V] terminal of the main unit.
In the case of source input wiring, short-circuit the [S/S] terminal and the [0V] terminal of the main unit.
*4. The "0V" and "24V" terminals are located on the output terminal side.
For details on the terminal layout, refer to Section 4.7.
80
L
N
Class D
grounding
*3
S/S
0 V
*4
0V
24 V
*4
24V
X0
X1
X2
Input
Input
impedance
terminal
L
N
Class D
grounding
*3
S/S
0 V
*4
0V
24 V
*4
24V
X0
X1
*2
X2
Input Input
impedance terminal
9.2 24 V DC input (Sink and source input type)
*1
Fuse
Three-wire
sensor
*2
Two-wire
proximity sensor
*1
Fuse
Three-wire
sensor
Two-wire
proximity sensor
9 Input Wiring Procedures