Mitsubishi FX3UC Series User Manual

136
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
5 Input Specifications and External wiring
5.1 Sink and source input (24V DC input type)
5.1 Sink and source input (24V DC input type)
Inputs (X) in the FX3UC-MT/D and FX3UC-32MT-LT are sink input type only. Inputs (X) in the FX3UC-
MT/DSS are sink/source common input type. Inputs in FX
2N/FX2NC Series input extension blocks are
either sink input type only or sink/source common input type depending on the product.
1. Sink input [-common]
An input (DC input signal) used where the current flows out of the input (X) terminal is called a sink input.
NPN open collector transistor outputs are available when transistor output type sensor outputs are
connected.
2. Source input [+common]
An input (DC input signal) used where the current flows into the input (X) terminal is called a source input.
PNP open collector transistor outputs are available when transistor output type sensor outputs are connected.
3. How to change a sink input for a source input for the FX3UC-MT/DSS
Sink inputs and the source inputs can be changed over in the FX3UC-MT/DSS by connection as follows:
- Selected by the connection that makes the current flow out of the input (X) terminal.
- Selected by the connection that makes the current flow into the input (X) terminal.
4. Instructions for using
• Concurrent use of sink/source input
Inputs (X) in the FX
3UC-MT/DSS can be wired either for sink inputs or source inputs.
It is not allowed to use both sink inputs and source inputs together.
• Caution in selecting model
Each input extension block is either sink input type only or sink/source common input type.
It is not allowed to use both types of input extension blocks together.
• Examples of the FX3UC-MT/D,
FX
3UC-32MT-LT
• Examples of the FX3UC-MT/DSS
• Examples of the FX3UC-MT/DSS
X
COM
Photocoupler
*1.Input impedance
*1
24V
DC
Fuse
X
COM0
Photocoupler
*1.Input impedance
*1
24V
DC
Fuse
X
COM0
Photocoupler
*1.Input impedance
*1
24V
DC
Fuse

Mitsubishi FX3UC Series Specifications

General

Brand	Mitsubishi
Model	FX3UC Series
Category	Controller
Language	English