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Omron NX1P2 series User Manual

Omron NX1P2 series
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4 - 1
4
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
This section describes how to design the power supply system for the NX-series
NX1P2 CPU Unit.
4-1 Power Supply System and Design Concepts . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-1-1 Power Supply System and Types of Power Supplies . . . . . . . . . . . . . . . . . . . 4-2
4-1-2 NX-series Power Supply-related Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4-1-3 Design Concepts for Power Supply to the CPU Rack . . . . . . . . . . . . . . . . . . 4-6
4-2 Designing the NX Unit Power Supply System . . . . . . . . . . . . . . . . . . . . . . . 4-7
4-2-1 Procedure for Designing the NX Unit Power Supply System . . . . . . . . . . . . . 4-7
4-2-2 Calculation Example for the NX Unit Power Supply . . . . . . . . . . . . . . . . . . . . 4-8
4-3 Designing the I/O Power Supply System . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4-3-1 I/O Power Supply Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4-3-2 Designing the I/O Power Supply from the NX Bus . . . . . . . . . . . . . . . . . . . . .4-11
4-3-3 Designing the I/O Power Supply from External Sources . . . . . . . . . . . . . . . 4-16
4-3-4 Designing I/O Power Supply for the Built-in I/O . . . . . . . . . . . . . . . . . . . . . . 4-16
4-3-5 Restrictions on Inrush Current for ON/OFF Operation . . . . . . . . . . . . . . . . . 4-17
4-4 Selecting External Power Supplies and Protective Devices . . . . . . . . . . 4-18
4-4-1 Selecting the Unit Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
4-4-2 Selecting the I/O Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
4-4-3 Selecting Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Designing the Power Supply Sys-
tem

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Omron NX1P2 series Specifications

General IconGeneral
ModelNX1P2 Series
ManufacturerOmron
TypeController
CPU Units1
Program Capacity5 MB
Data Memory Capacity128 KB
Ethernet Ports1
Serial Ports1
Built-in EtherNet/IP PortYes
Built-in EtherCAT PortYes
Built-in USB PortYes
SD Memory Card SlotYes
USB Port1
Power Supply Voltage24 VDC
Programming LanguageLadder, Structured Text, Function Block Diagram
Communication ProtocolsEtherNet/IP, EtherCAT, Serial (RS-232C)

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