Omron NX1P2 series User Manual

4 - 5
4 Designing the Power Supply System
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
4-1 Power Supply System and Design Concepts
4
4-1-2 NX-series Power Supply-related Units
Additional
I/O Power
Supply Unit
This NX Unit provides additional I/O power supply.
This Unit is used when the type of the I/O power supply to NX Units connected to the CPU Unit is
the supply from NX bus. Add one or more of this NX Unit to use in the following cases.
(a) When the I/O power supply capacity is insufficient
•When the total current consumption from I/O power supply exceeds 4 A
•When a voltage drop in the I/O power supply causes the voltage of the I/O power supply to go
below the voltage specifications of the I/O circuits or connected external devices
(b) Separating the I/O power supply
• When connected external devices have different I/O power supply voltages
• When separating the power supply systems
Case (a)
Case (b)
The NX Unit power supply of the Additional I/O Power Supply Unit is connected to the NX Unit on
the left through the NX bus connector.
Unit name Function
When the I/O power supply becomes the following states for the subsequent NX
Units.
• When it exceeds the maximum I/O power supply current, 4 A
• When it goes below the voltage specifications of the connected external devices
NX Unit NX Unit
End
Cover
I/O power supply terminals
NX-series NX1P2
CPU Unit
Unit power supply terminals
Internal
power
supply
circuit
Internal
circuits
NX Unit power supply
Unit power
supply
(24 VDC)
I/O power supply
terminals
Additional
I/O Power
Supply
Unit
Additional
I/O Power
Supply
Unit
I/O power supply I/O power supply
I/O power supply
(24 VDC, etc.)
I/O power supply
(24 VDC, etc.)
Separated by the
Additional I/O Power
Supply Unit
○
○ ○ ○ ○ ○
- When different I/O power supply voltage are used.
- When separating the power supply systems.
NX Unit NX Unit NX Unit
End
Cover
Separated by the
Additional I/O Power
Supply Unit
I/O power supply terminals
NX-series NX1P2
CPU Unit
Unit power supply terminals
Internal
power
supply
circuit
Internal
circuits
NX Unit power supply
Unit power
supply
(24 VDC)
I/O power supply
terminals
Additional
I/O Power
Supply
Unit
Additional
I/O Power
Supply
Unit
I/O power supply I/O power supply
I/O power supply
(12 VDC, etc.)
I/O power supply
(24 VDC, etc.)
○
○ ○ ○ ○ ○

Omron NX1P2 series Specifications

General

Model	NX1P2 Series
Manufacturer	Omron
Type	Controller
CPU Units	1
Program Capacity	5 MB
Data Memory Capacity	128 KB
Ethernet Ports	1
Serial Ports	1
Built-in EtherNet/IP Port	Yes
Built-in EtherCAT Port	Yes
Built-in USB Port	Yes
SD Memory Card Slot	Yes
USB Port	1
Power Supply Voltage	24 VDC
Programming Language	Ladder, Structured Text, Function Block Diagram
Communication Protocols	EtherNet/IP, EtherCAT, Serial (RS-232C)