Mitsubishi FX3U SERIES User Manual page 181

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
Use of input/output extension units/blocks of sink input type
Main unit
Sink and source
input type
5V 0V 24V
Input extension block
5V 0V 24V
Input/output powered extension unit
Sink input type
5V 0V 24V
Input extension block
5V 0V 24V
Special function block
5V 0V 24V
10 Input Wiring Procedures (Input Interruption and Pulse Catch)
10.2 24V DC Input Type (Common to Sink/Source Input)
*3
S/S
(0V)
*4
(24V)
X0
X1
Input
Input
impedance
terminal
24+
X0
X1
Input
terminal
COM
24+ *5
X0
X1
Input
terminal
24+
X0
X1
Input
terminal
24+
24-
Class D
grounding
Fuse
Class D
grounding
Three-
wire
sensor
*2
Two-wire
proximity
sensor
Class D
grounding
*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.
1
*1
2
3
4
5
6
7
8
9
10
175