Omron NX-OD5256 User Manual

3
CONTENTS
NX-series Digital I/O Unit User’s Manual (W521)
1-3 Model List............................................................................................................................... 1-6
1-3-1 Model Notation............................................................................................................................ 1-6
1-3-2 Digital Input Units........................................................................................................................ 1-9
1-3-3 Digital Output Units....................................................................................................................1-11
1-3-4 Digital Mixed I/O Units .............................................................................................................. 1-13
1-4 List of Functions.................................................................................................................. 1-14
1-4-1 Digital Input Units...................................................................................................................... 1-14
1-4-2 Digital Output Units................................................................................................................... 1-15
1-4-3 Digital Mixed I/O Units .............................................................................................................. 1-16
1-5 Support Software................................................................................................................. 1-17
Section 2 Specifications
2-1 General Specifications.......................................................................................................... 2-2
2-2 Individual Specifications ...................................................................................................... 2-3
Section 3 Part Names and Functions
3-1 Part Names............................................................................................................................. 3-2
3-1-1 Screwless Clamping Terminal Block Type .................................................................................. 3-2
3-1-2 Connector Types......................................................................................................................... 3-6
3-2 Indicators ............................................................................................................................... 3-9
3-2-1 TS Indicator ...............................................................................................................................3-11
3-2-2 IN/OUT Indicator....................................................................................................................... 3-12
Section 4 Installation and Wiring
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
Section 5 I/O Refreshing
5-1 I/O Refreshing for Slave Terminals ...................................................................................... 5-2
5-1-1 I/O Refreshing from CPU Unit to Slave Terminal........................................................................ 5-2
5-2 I/O Refreshing Methods ........................................................................................................ 5-3
5-2-1 Types of I/O Refreshing Methods ............................................................................................... 5-3
5-2-2 Setting the I/O Refreshing Methods............................................................................................ 5-4

Omron NX-OD5256 Specifications

General

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