Name: Omron NX-OD5256
Brand: Omron
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10 Inspection and Maintenance

10 - 4

NX-series Digital I/O Unit User’s Manual (W521)

 Required Tools

• Phillips screwdriver

• Flat-blade screwdriver

• Voltage tester or digital voltmeter

• Industrial alcohol and pure cotton cloth

 Tools Required Occasionally

• Oscilloscope

• Thermometer and hygrometer

Tools Required for Inspections

Introduction3
- Intended Audience3
- Applicable Products3
- Table of Contents4
Relevant Manuals8
Manual Structure9
- Page Structure and Icons9
- Special Information10
- Precaution on Terminology10
Terms and Conditions Agreement11
- Warranty, Limitations of Liability11
- Application Considerations12
- Disclaimers12
Safety Precautions13
- Definition of Precautionary Information13
- Symbols13
- Warnings14
- Cautions15
Precautions for Safe Use17
Precautions for Correct Use21
Regulations and Standards22
- Conformance to EC Directives22
- Conformance to UL and CSA Standards23
- Conformance to Shipbuilding Standards23
- Conformance to KC Standards23
- Software Licenses and Copyrights23
Unit Versions24
- Unit Versions and Sysmac Studio Versions26
Related Manuals27
Terminology30
Revision History32
Sections in this Manual33
- Features and System Configuration35
- Features and Types of Digital I/O Units36
  - Digital I/O Unit Features36
  - Digital I/O Unit Types37
- System Configuration of Slave Terminals38
  - Overview38
  - System Configuration38
Model List40
- Model Notation40
- Digital Input Units41
- Digital Output Units41
- Digital Input Units43
- Digital Output Units45
- Digital Mixed I/O Units47
List of Functions48
- Digital Input Units48
- Digital Output Units49
- Digital Mixed I/O Units50
Support Software51
- Specifications53
Section 2 Specifications54
General Specifications54
Individual Specifications55
- Part Names and Functions57
Part Names58
- Screwless Clamping Terminal Block Type58
- Connector Types62
Indicators65
- TS Indicator67
- IN/OUT Indicator68
  - Installation and Wiring69
Section 4 Installation and Wiring70
Installing NX Units70
- Attaching Markers72
- Removing NX Units73
- Installation Orientation75
Wiring the Power Supply to the Slave Terminal76
- Power Supply Types76
- Supplying each Power Supply and Wiring77
- Calculating the Total Current Consumption from I/O Power Supply79
- Power Supply-Related Units for the NX-Series80
Wiring the Terminals83
- Wiring to the Screwless Clamping Terminal Block83
- Wiring to Connectors100
- Checking the Wiring102
Wiring Examples103
- Wiring the Input Units103
- Precautions When Wiring to the Output Units115
  - I/O Refreshing117
Section 5 I/O Refreshing118
I/O Refreshing for Slave Terminals118
- I/O Refreshing from CPU Unit to Slave Terminal118
I/O Refreshing Methods119
- Types of I/O Refreshing Methods119
- Setting the I/O Refreshing Methods120
- Types of Digital Input Units154
- Specifications of I/O Data156
- List of Settings159
- Function165
  - List of Digital Input Unit Functions165
  - Input Filter166
    - Digital Output Units173
- Types of Digital Output Units174
- Specifications of I/O Data176
  - Allocable I/O Data176
- List of Settings180
- Function183
- Push-Pull Output192
- Precautions When Using the Relay Output Units193
  - Digital Mixed I/O Units197
- Types of Digital Mixed I/O Units198
- Specifications of I/O Data199
  - Allocable I/O Data199
- List of Settings201
  - Input Settings201
  - Output Settings202
- Function203
  - Output Functions203
    - Input Functions203
    - Troubleshooting205
- How to Check for Errors206
- Checking for Errors with the Indicators207
- Checking for Errors and Troubleshooting on the Sysmac Studio209
Resetting Errors220
Troubles Specific to each Type of NX Units221
- Digital Inputs221
- Digital Outputs222
Troubleshooting Flowchart223
- Cleaning and Inspection225
Section 10 Inspection and Maintenance226
Cleaning and Inspection226
- Cleaning226
- Periodic Inspection226
Maintenance Procedures229
Appendices231
A-1 Data Sheet232
- Model List232
- A-1-1 Model List232
- Digital Input Units235
- A-1-3 Digital Output Units254
- A-1-4 Digital Mixed I/O Units279
A-2 Dimensions289
- A-2-1 Screwless Clamping Terminal Block Type289
- Screwless Clamping Terminal Block Type289
- A-2-2 Connector Types291
Connecting Connector-Terminal Block Conversion Units and I/O Relay Terminals293
- A-3-1 Patterns for Combining Connector-Terminal Block Conversion Units and I/O Relay Terminals293
- Connecting Connector-Terminal Block Conversion Units and I/O Relay Ter293
- Minals293
- Patterns for Combining Connector-Terminal Block Conversion Units and I/O Relay Terminals293
- A-3-2 Combinations of Connections295
- A-3-3 Connector-Terminal Block Conversion Unit Connection Diagrams298
- A-3-4 Connection Diagrams for I/O Relay Terminals304
EMC Directive Measures for Relay Outputs310
A-5 List of NX Objects311
- A-5-1 Format of Object Descriptions311
- Format of Object Descriptions311
- A-5-2 Digital Input Units312
- A-5-3 Digital Output Units320
- A-5-4 Digital Mixed I/O Units329
List of Screwless Clamping Terminal Block Models334
- Model Notation334
- A-6-2 List of Terminal Block Models334
- A-6-1 Model Notation334
A-7 Version Information335
- A-7-1 Relationship between Unit Versions of NX Units, Communications Coupler Units and CPU Units, and Versions of Sysmac Studio335
- Relationship between Unit Versions of NX Units, Communications Coupler Units and CPU Units, and Versions of Sysmac Studio335

Omron NX-OD5256 User Manual

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Omron NX-OD5256 Specifications

Related product manuals

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