Omron NX1P2 series User Manual

4 Designing the Power Supply System
4 - 10
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
4-3 Designing the I/O Power Supply Sys-
tem
This section describes how to design the I/O power supply to the NX Units connected to the NX-series
NX1P2 CPU Unit.
There are the following three methods to supply the I/O power supply to the NX Units depending on the
type and model of the NX Units.
Refer to the user’s manuals for individual NX Units or to the NX-series Data Reference Manual (Cat.
No. W525) for the power supply method for specific NX Units.
An example is shown below.
4-3-1 I/O Power Supply Method
Supply method Description
Supply from the NX bus Power is supplied through the NX bus connectors by connecting an I/O power supply
to the I/O power supply terminals on the Additional I/O Power Supply Units.
Supply from external
source
Power is supplied to the Units from an external source.
I/O power is supplied by connecting an I/O power supply to the terminal blocks on the
Units.
No supply The I/O power supply is not needed when the NX Unit does not use it for the connected
external devices, or when power for the interface is generated inside the NX Unit.
NX-series NX1P2 CPU Unit
I/O power supply (AC)
No supply
I/O
power
supply
Addi-
tional I/O
Power
Supply
Unit
DC
Input
Unit
Relay
Output
Unit
Relay
Output
Unit
Transistor
Output
Unit
Com-
munica-
tion
Inter-
face
Unit
Supply from external source
Supplied from the
NX bus.
External
device
External
output
device
External
output
device
External
input
device
External
output
device
I/O power supply (DC)
I/O power supply terminals
I/O power supply
(24 VDC, etc.)
End Cover

Omron NX1P2 series Specifications

General

Brand	Omron
Model	NX1P2 series
Category	Controller
Language	English