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10 Inspection and Maintenance

10 - 4

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

z Required Tools

• Phillips screwdriver

• Flat-blade screwdriver

• Voltage tester or digital voltmeter

• Industrial alcohol and pure cotton cloth

z Tools Required Occasionally

• Oscilloscope

• Thermometer and hygrometer

Tools Required for Inspections

Table of Contents

Introduction3
- Intended Audience3
- Applicable Products3
- Table of Contents4
Relevant Manuals9
Manual Structure10
- Page Structure and Icons10
- Special Information11
- Precaution on Terminology12
Terms and Conditions Agreement13
- Warranty, Limitations of Liability13
- Application Considerations14
- Disclaimers14
Safety Precautions15
- Definition of Precautionary Information15
- Symbols15
- Warnings16
- Cautions17
Precautions for Safe Use19
Precautions for Correct Use24
Regulations and Standards25
- Conformance to EU Directives25
- Conformance to UL and CSA Standards26
- Conformance to Shipbuilding Standards26
- Conformance to KC Standards26
- Software Licenses and Copyrights26
Unit Versions27
- Unit Versions and Support Software Versions28
Related Manuals29
Terminology32
Revision History34
Sections in this Manual35
- Features and System Configuration37
- Features and Types of Digital I/O Units38
  - Digital I/O Unit Features38
  - Digital I/O Unit Types39
- System Configuration40
  - System Configuration in the Case of a CPU Unit40
  - System Configuration of Slave Terminals41
Model List43
- Model Notation43
- Digital Input Units44
- Digital Output Units44
- Digital Input Units46
- Digital Output Units48
- Digital Mixed I/O Units51
List of Functions52
- Digital Input Units52
- Digital Output Units53
- Digital Mixed I/O Units54
Support Software55
- Specifications57
Section 2 Specifications58
General Specifications58
Individual Specifications59
- Part Names and Functions61
Part Names62
- Screwless Clamping Terminal Block Type62
- M3 Screw Terminal Block Type67
- Connector Types68
Indicators73
- TS Indicator75
- IN/OUT Indicator76
  - Installation and Wiring77
Section 4 Installation and Wiring78
Installing NX Units78
- Attaching Markers80
- Removing NX Units82
- Installation Orientation83
Power Supply Types and Wiring85
- Applications of I/O Power Supply and Supply Methods85
- Calculating the Total Current Consumption from I/O Power Supply87
Wiring the Terminals88
- Wiring to the Screwless Clamping Terminal Block88
- Wiring to M3 Screw Terminal Block107
- Wiring to Mil/Fujitsu Connectors111
- Checking the Wiring115
Wiring Examples116
- Wiring the Input Units116
- Precautions When Wiring to the Output Units128
  - I/O Refreshing131
5-1 I/O Refreshing132
- I/O Refreshing from CPU Units to NX Units132
- I/O Refreshing132
- I/O Refreshing from CPU Units or Industrial Pcs to Slave Terminal133
I/O Refreshing Methods135
- Types of I/O Refreshing Methods135
- Types of Digital Input Units174
- List of Settings179
- Function185
  - List of Digital Input Unit Functions185
  - Input Filter186
    - Digital Output Units191
- Types of Digital Output Units192
- Specifications of I/O Data195
  - Allocable I/O Data195
- List of Settings199
- Function202
- Push-Pull Output209
- Precautions When Using the Relay Output Units210
  - Digital Mixed I/O Units215
- Types of Digital Mixed I/O Units216
- Specifications of I/O Data217
  - Allocable I/O Data217
- List of Settings219
  - Input Settings219
  - Output Settings220
- Function221
  - Input Functions221
  - Output Functions221
    - Troubleshooting223
- How to Check for Errors224
- Checking for Errors with the Indicators225
- Checking for Errors and Troubleshooting on the Support Software227
Resetting Errors241
Troubles Specific to each Type of NX Units242
- Digital Inputs242
- Digital Outputs243
Troubleshooting Flowchart244
- Cleaning and Inspection245
Section 10 Inspection and Maintenance246
Cleaning and Inspection246
- Cleaning246
- Periodic Inspection246
Maintenance Procedures249
Appendices251
A-1 Data Sheet252
- A-1-1 Model List252
- Model List252
- Digital Input Units257
- A-1-3 Digital Output Units288
- A-1-4 Digital Mixed I/O Units332
A-2 Dimensions346
- A-2-1 Screwless Clamping Terminal Block Type346
- A-2-2 M3 Screw Terminal Block Type348
- A-2-3 Connector Types349
Connecting Connector-Terminal Block Conversion Units and I/O Relay Terminals352
- A-3-1 Patterns for Combining Connector-Terminal Block Conversion Units and I/O Relay Terminals352
- Connecting Connector-Terminal Block Conversion Units352
- And I/O Relay Terminals352
- Patterns for Combining Connector-Terminal Block Conversion Units and I/O Relay Terminals352
- A-3-2 Combinations of Connections354
- A-3-3 Connector-Terminal Block Conversion Unit Connection Diagrams360
- A-3-4 Connection Diagrams for I/O Relay Terminals377
EMC Directive Measures for Relay Outputs383
A-5 List of NX Objects384
- A-5-1 Format of Object Descriptions384
- A-5-2 Digital Input Units385
- A-5-3 Digital Output Units393
- A-5-4 Digital Mixed I/O Units402
List of Screwless Clamping Terminal Block Models407
- Model Notation407
- List of Terminal Block Models407
A-7 Version Information with CPU Units408
- A-7-1 Relationship between Unit Versions of Units408
Version Information with Communications Coupler Units410
- Connection to an Ethercat Coupler Unit410
- A-8-2 Connection to an Ethernet/Ip Coupler Unit412
Displaying the Edit Unit Operation Settings Tab Page414
- A-9-1 Connection to the CPU Unit414
- A-9-2 Slave Terminal416

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