Mitsubishi Electric MELSEC-F FX3G Series User Manual page 154

FX Series Programmable Controllers
3G
User's Manual - Hardware Edition
Use of input/output extension units/blocks of sink input type
Sink and source
input type
Sink input type
*1 Handle the power supply circuit correctly in accordance with Chapter 9 "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.
*4 The "24V" and "0V" terminals are located on the output terminal side.
For details on the terminal layout, refer to Section 4.7.
148
Main unit
Input
impedance
5V 0V 24V
Input extension block
5V 0V 24V
Input / output powered extension unit
5V 0V 24V
Input extension block
5V 0V 24V
10.2 24V DC input (Sink and source input type)
L
N
Class D
grounding
*3
S/S
0V
*4
0V
*4 24V
24V
X0
X1
Input
terminal
24+
X0
X1
Input
terminal
L
N
COM
24+
X0
X1
Input
terminal
0V 24V
24+
X0
X1
Input
terminal
10 Input Wiring Procedures
Fuse *1
Three-
wire
sensor
Two-wire
proximity
*2
sensor