Omron NX-OD5256 User Manual

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NX-series Digital I/O Unit User’s Manual (W521)
This section describes how to install the NX Units, the types of power supplies used in
the Slave Terminal, their wiring methods, and how to wire the NX Units.
4-1 Installing NX Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-1-1 Installing NX Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-1-2 Attaching Markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4-1-3 Removing NX Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4-1-4 Installation Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4-2 Wiring the Power Supply to the Slave Terminal . . . . . . . . . . . . . . . . . . . . . 4-8
4-2-1 Power Supply Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4-2-2 Supplying Each Power Supply and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
4-2-3 Calculating the Total Current Consumption from I/O Power Supply . . . . . . . . .4-11
4-2-4 Power Supply-related Units for the NX-series . . . . . . . . . . . . . . . . . . . . . . . . 4-12
4-3 Wiring the Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
4-3-1 Wiring to the Screwless Clamping Terminal Block . . . . . . . . . . . . . . . . . . . . . 4-15
4-3-2 Wiring to Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
4-3-3 Checking the Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
4-4 Wiring Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
4-4-1 Wiring the Input Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
4-4-2 Precautions when Wiring to the Output Units . . . . . . . . . . . . . . . . . . . . . . . . . 4-47
Installation and Wiring

Omron NX-OD5256 Specifications

General

Brand	Omron
Model	NX-OD5256
Category	I/O Systems
Language	English