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Omron NX Series Hardware User Manual
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Revision History
A manual revision code appears as a suffix to the catalog number on the front and back covers of the
manual.
W629-E1-01
Revision code
Cat. No.
Revision
code
Date
Revised content
01
April 2023
Original production
Revision History
50
NX-series NX502 CPU Unit Hardware User's Manual (W629)
51
53
Table of Contents
Intended Audience
3
Applicable Products
3
Relevant Manuals
4
Manual Structure
6
Page Structure
6
Special Information
7
Precaution on Terminology
7
Sections in this Manual
9
Table of Contents
10
Terms and Conditions Agreement
14
Warranty, Limitations of Liability
14
Application Considerations
15
Disclaimers
15
Statement of Security Responsibilities for Assumed Use Cases and against Threats
16
Safety Precautions
17
Definition of Precautionary Information
17
Symbols
17
Warning
18
Cautions
21
Precautions for Safe Use
23
Precautions for Correct Use
34
Regulations and Standards
39
Conformance to EMC and Electrical Safety Regulations
39
Conformance to UL and CSA Standards
39
Conformance to KC Certification
40
Software Licenses and Copyrights
40
Versions
41
Checking Versions
41
Unit Versions of CPU Units and Sysmac Studio Versions
43
Related Manuals
44
Terminology
47
Revision History
52
Introduction to NX-Series Controllers
53
The NX-Series Controller
54
Features
55
Introduction to the System Configurations
58
Specifications
62
Overall Operating Procedure for the CPU Unit
67
Overall Procedure
67
Procedure Details
68
System Configuration
73
Basic System Configuration
74
Ethercat Network Configuration
75
NX Unit Configuration
76
Bus Unit Configuration
77
Connecting to the Sysmac Studio
80
Network Configuration
81
CPU Units
84
Models and Specifications
84
Part Names and Functions
86
DIP Switch
87
Operation Status Indicators
88
Terminal Blocks
91
Battery
92
Fan
94
ID Information Indication
94
SD Memory Cards
96
Models and Specifications
96
Purpose
96
Power Supply-Related Units
97
NX Units
98
Bus Units
99
Sysmac Studio
100
Model Numbers
100
Connection
100
Designing the Power Supply System
103
Power Supply System
104
Unit Power Supply and I/O Power Supply
104
NX-Series Power Supply-Related Units
106
User's Manual (Cat. No. W523)
106
Bus Unit Power Supply
111
Designing the NX Unit Power Supply System
113
Procedure for Designing the NX Unit Power Supply System
113
Calculation Example for the NX Unit Power Supply
114
Designing the I/O Power Supply System
116
I/O Power Supply Method
116
Designing the I/O Power Supply from the NX Bus
117
Designing the I/O Power Supply from External Sources
122
Restrictions on Inrush Current for ON/OFF Operation
122
Selecting External Power Supplies and Protective Devices
124
Selecting the Unit Power Supply
124
Selecting the I/O Power Supplies
126
Selecting Protective Devices
127
Processing at Power on and Power off
132
Power on Operation
132
Power off Operation
133
Resetting the Controller from the Sysmac Studio
135
Fail-Safe Circuits
136
Mounting and Removing Units
138
Installation in a Control Panel
138
Preparations for Installation
142
Installing the CPU Unit
144
Attaching Markers
147
Installing and Connecting NX Units
148
Installing and Connecting X Bus Units
151
Mounting the End Cover
152
Mounting the End Plates
153
Installing and Removing the SD Memory Card
154
Battery Installation
157
Removing CPU Unit
159
Removing NX Units
160
Removing X Bus Units
161
Assembled Appearance and Dimensions
162
Wiring
166
Wiring the Unit Power Supply
166
CPU Unit
166
Wiring the Additional NX Unit Power Supply Unit
167
Wiring the Additional I/O Power Supply Unit
167
Wiring the Protective Devices
167
Grounding
167
Electrically Connected to
169
DIN Track Contact Plate
169
Ground Terminal (Functional Ground Terminal)
169
Additional NX Unit Power Supply Unit
169
Shield Connection Unit
169
Wiring the Built-In Ethercat Port
171
Wiring the Built-In Ethernet/Ip Port
171
DIN Track
171
Wiring to the CPU Unit Terminal Block
172
Control Panel Installation
187
Temperature
187
Humidity
188
Vibration and Shock
189
Atmosphere
189
Electrical Environment
189
Grounding
194
Troubleshooting
199
Overview of Troubleshooting
200
Inspection and Maintenance
201
Cleaning and Maintenance
202
Cleaning
202
Periodic Inspections
203
Unit Replacement Precautions
204
Replacing the Battery
206
The CPU Unit
206
Appendices
209
A-1 Specifications
210
A-2 Dimensions
211
A-2-1 NX-Series NX502 CPU Unit
211
NX-Series NX502 CPU Unit
211
A-2-2 End Cover
212
A-2-3 SD Memory Card
212
End Cover
212
List of Terminal Block Models
213
A-3-1 Model Notation
213
A-3-2 List of Terminal Block Models
213
Ground Terminal
213
A-4 Version Information
215
Support Functions of the CPU Units and Restrictions on the NX Units
216
Other manuals for Omron NX Series
User Manual
464 pages
Instruction Manual
26 pages
Network Connection Guide
51 pages
Manual
23 pages
Quick Start Guide
15 pages
Reference Manual
116 pages
5
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Omron NX Series Specifications
General
Brand
Omron
Model
NX Series
Category
Controller
Language
English
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