Mitsubishi FX3U Series

FX3U Series Programmable Controllers
User’s Manual - Hardware Edition
175
10 Input Wiring Procedures (Input Interruption and Pulse Catch)
10.2 24V DC Input Type (Common to Sink/Source Input)
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
X0
S/S
(0V)
(24V)
Main unit
X1
X0
24+
X1
Input extension block
X0
COM
24+
Input/output powered extension unit
X1
X0
24+
X1
Input extension block
5V 0V 24V
5V 0V 24V
24-
24+
Special function block
Fuse
5V 0V 24V
5V 0V 24V
5V 0V 24V
Input
impedance
Input
terminal
Input
terminal
Input
terminal
Three-
wire
sensor
Input
terminal
*1
*2
Two-wire
proximity
sensor
Class D
grounding
Class D
grounding
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 terminal of the main unit.
*4 Do not connect with (0V) and
(24V) terminals.
*5 Do not connect 24+ terminal.
Use of input/output extension units/blocks of sink input type
Class D
grounding
*3
*4
*5
Sink and source
input type