Omron NX Series

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Manual Structure

NX-series NX502 CPU Unit Hardware User's Manual (W629)

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Intended Audience3
Applicable Products3
Relevant Manuals4
Manual Structure6
Page Structure6
Special Information7
Precaution on Terminology7
Sections in this Manual9
Table of Contents10
Terms and Conditions Agreement14
Warranty, Limitations of Liability14
Application Considerations15
Disclaimers15
Statement of Security Responsibilities for Assumed Use Cases and against Threats16
Safety Precautions17
Definition of Precautionary Information17
Symbols17
Warning18
Cautions21
Precautions for Safe Use23
Precautions for Correct Use34
Regulations and Standards39
Conformance to EMC and Electrical Safety Regulations39
Conformance to UL and CSA Standards39
Conformance to KC Certification40
Software Licenses and Copyrights40
Versions41
Checking Versions41
Unit Versions of CPU Units and Sysmac Studio Versions43
Related Manuals44
Terminology47
Revision History52
Introduction to NX-Series Controllers53
The NX-Series Controller54
Features55
Introduction to the System Configurations58
Specifications62
Overall Operating Procedure for the CPU Unit67
Overall Procedure67
Procedure Details68
System Configuration73
Basic System Configuration74
Ethercat Network Configuration75
NX Unit Configuration76
Bus Unit Configuration77
Connecting to the Sysmac Studio80
Network Configuration81
CPU Units84
Models and Specifications84
Part Names and Functions86
DIP Switch87
Operation Status Indicators88
Terminal Blocks91
Battery92
Fan94
ID Information Indication94
SD Memory Cards96
Models and Specifications96
Purpose96
Power Supply-Related Units97
NX Units98
Bus Units99
Sysmac Studio100
Model Numbers100
Connection100
Designing the Power Supply System103
Power Supply System104
Unit Power Supply and I/O Power Supply104
NX-Series Power Supply-Related Units106
User's Manual (Cat. No. W523)106
Bus Unit Power Supply111
Designing the NX Unit Power Supply System113
Procedure for Designing the NX Unit Power Supply System113
Calculation Example for the NX Unit Power Supply114
Designing the I/O Power Supply System116
I/O Power Supply Method116
Designing the I/O Power Supply from the NX Bus117
Designing the I/O Power Supply from External Sources122
Restrictions on Inrush Current for ON/OFF Operation122
Selecting External Power Supplies and Protective Devices124
Selecting the Unit Power Supply124
Selecting the I/O Power Supplies126
Selecting Protective Devices127
Processing at Power on and Power off132
Power on Operation132
Power off Operation133
Resetting the Controller from the Sysmac Studio135
Fail-Safe Circuits136
Mounting and Removing Units138
Installation in a Control Panel138
Preparations for Installation142
Installing the CPU Unit144
Attaching Markers147
Installing and Connecting NX Units148
Installing and Connecting X Bus Units151
Mounting the End Cover152
Mounting the End Plates153
Installing and Removing the SD Memory Card154
Battery Installation157
Removing CPU Unit159
Removing NX Units160
Removing X Bus Units161
Assembled Appearance and Dimensions162
Wiring166
Wiring the Unit Power Supply166
CPU Unit166
Wiring the Additional NX Unit Power Supply Unit167
Wiring the Additional I/O Power Supply Unit167
Wiring the Protective Devices167
Grounding167
Electrically Connected to169
DIN Track Contact Plate169
Ground Terminal (Functional Ground Terminal)169
Additional NX Unit Power Supply Unit169
Shield Connection Unit169
Wiring the Built-In Ethercat Port171
Wiring the Built-In Ethernet/Ip Port171
DIN Track171
Wiring to the CPU Unit Terminal Block172
Control Panel Installation187
Temperature187
Humidity188
Vibration and Shock189
Atmosphere189
Electrical Environment189
Grounding194
Troubleshooting199
Overview of Troubleshooting200
Inspection and Maintenance201
Cleaning and Maintenance202
Cleaning202
Periodic Inspections203
Unit Replacement Precautions204
Replacing the Battery206
The CPU Unit206
Appendices209
A-1 Specifications210
A-2 Dimensions211
A-2-1 NX-Series NX502 CPU Unit211
NX-Series NX502 CPU Unit211
A-2-2 End Cover212
A-2-3 SD Memory Card212
End Cover212
List of Terminal Block Models213
A-3-1 Model Notation213
A-3-2 List of Terminal Block Models213
Ground Terminal213
A-4 Version Information215
Support Functions of the CPU Units and Restrictions on the NX Units216

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