Mitsubishi FX3UC SERIES User Manual page 148

FX Series Programmable Controllers
3UC
User's Manual - Hardware Edition
5.2.4 Instructions for connecting input devices
The input current of this PLC is 5 to 7mA/24V DC.
Use input devices applicable to this minute current.
If no-voltage contacts (switches) for large current are used, contact failure may occur.
Input number
X000 to X005
X006, X007
X010 or more
<Example> Products of OMRON
Type
Microswitch
Proximity switch
1. In the case of input device with built-in series diode
The voltage drop of the series diode should be approx. 4V or less.
When lead switches with a series LED are used, up to two switches can be connected in series.
Also make sure that the input current is over the input-sensing level while the switches are ON.
• Examples of wiring (Dedicated to sink input types only)
PLC
• Examples of wiring (Common to both sink and source input types)
Sink input wiring
PLC
142
Input current
6mA/24V DC
7mA/24V DC
5mA/24V DC
Model name
Models Z, V and D2RV
Model TL
LED
X
COM
LED
X
Fuse
COM
24V DC
5 Input Specifications and External wiring
Type
Operation switch
Photoelectric switch
Source input wiring
X
PLC
COM
24V DC
5.2 24V DC Input Type
Model name
Model A3P
Model E3S
LED
Fuse