Omron NJ-series Programming manual

Machine Automation Controller
NJ-series
Troubleshooting Manual
W503-E1-08
NJ501-15@@
NJ501-14@@
NJ501-13@@
NJ301-12@@
NJ301-11@@

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or
by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of
OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is
constantly striving to improve its high-quality products, the information contained in this manual is subject to change without
notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility
for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in
this publication.
©OMRON, 2011
• Sysmac and SYSMAC are trademarks or registered trademarks of OMRON Corporation in Japan and other
countries for OMRON factory automation products.
• Windows, Windows 98, Windows XP, Windows Vista, and Windows 7 are registered trademarks of Microsoft
Corporation in the USA and other countries.
• EtherCAT®is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.
• ODVA, CIP, CompoNet, DeviceNet, and EtherNet/IP are trademarks of ODVA.
• The SD and SDHC logos are trademarks of SD-3C, LLC.
Other company names and product names in this document are the trademarks or registered trademarks of their
respective companies.
Trademarks

1
Introduction
NJ-series Troubleshooting Manual (W503)
Introduction
Thank you for purchasing an NJ-series CPU Unit.
This manual contains information that is necessary to use the NJ-series CPU Unit. Please read this
manual and make sure you understand the functionality and performance of the NJ-series CPU Unit
before you attempt to use it in a control system.
Keep this manual in a safe place where it will be available for reference during operation.
This manual is intended for the following personnel, who must also have knowledge of electrical sys-
tems (an electrical engineer or the equivalent).
•Personnel in charge of introducing FA systems.
•Personnel in charge of designing FA systems.
•Personnel in charge of installing and maintaining FA systems.
•Personnel in charge of managing FA systems and facilities.
For programming, this manual is intended for personnel who understand the programming language
specifications in international standard IEC 61131-3 or Japanese standard JIS B3503.
This manual covers the following products.
•NJ-series CPU Units
•NJ501-15@@
•NJ501-14@@
•NJ501-13@@
•NJ301-12@@
•NJ301-11@@
Part of the specifications of the CPU Units are given in other manuals. Refer to Relevant Manuals on
page 2 and Related Manuals on page 21.
Intended Audience
Applicable Products

Relevant Manuals
2NJ-series Troubleshooting Manual (W503)
Relevant Manuals
There are three manuals that provide basic information on the NJ-series CPU Units: the NJ-series CPU
Unit Hardware User’s Manual, the NJ-series CPU Unit Software User’s Manual, and the NJ-series
Instructions Reference Manual.
Most operations are performed from the Sysmac Studio Automation Software. Refer to the Sysmac Stu-
dio Version 1 Operation Manual (Cat. No. W504) for information on the Sysmac Studio.
Other manuals are necessary for specific system configurations and applications.
Read all of the manuals that are relevant to your system configuration and application to make the most
of the NJ-series CPU Unit.
Purpose of use
Manual
NJ Series NX Series
Basic informa-
tion
NJ-series CPU Unit Hardware User’s Manual NJ-series CPU Unit Software User’s Manual NJ-series Instructions Reference Manual NJ-series CPU Unit Motion Control User’s Manual NJ-series CPU Unit Built-in EtherCAT Port User’s Manual NJ-series Motion Control Instructions Reference Manual NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual NJ-series Database Connection CPU Unit User’s Manual NJ-series Troubleshooting Manual NX-series EtherCAT Coupler Unit User’s Manual NX-series NX Units User’s Manuals NX-series Safety Control Unit User’s Manual NX-series Safety Control Unit Instructions Reference Manual NX-series Data Reference Manual CJ-series Special Unit Operation Manuals for NJ-series CPU Unit
Introduction to NJ-series Controllers ●
Setting devices and hardware
●
Using motion control ●●
Using EtherCAT ●
Using EtherNet/IP ●
Using the database connection
service ●
Using the NX Series ●● ●
Performing safety controls ●●
Using CJ-series Units ●
Software settings
●
Using motion control ●●
Using EtherCAT ●
Using EtherNet/IP ●
Using the database connection
service ●
Using the NX Series ●● ●
Performing safety controls ●●●
Writing the user program
●●
Using motion control ●● ●
Using EtherCAT ●
Using the database connection
service ●
Using the NX Series ●●
Performing safety controls ●●
Using CJ-series Units ●
Programming error processing ●

3
Relevant Manuals
NJ-series Troubleshooting Manual (W503)
*1 The NJ-series Troubleshooting Manual introduces the error management concepts and error items. Refer to the manuals
that are indicated with triangles for details on errors for the corresponding Units.
Testing operation and debugging
●
Using motion control ●●
Using EtherCAT ●
Using EtherNet/IP ●
Using the database connection
service ●
Using the NX Series ●●
Performing safety controls ●
Learning about error management
and corrections*1 ▲▲ ▲▲ ▲▲●▲▲ ▲
Maintenance
●
Using motion control ●●
Using EtherCAT ●
Using EtherNet/IP ●
Using the NX Series ●●
Performing safety controls ●
Using CJ-series Units ●
Purpose of use
Manual
NJ Series NX Series
Basic informa-
tion
NJ-series CPU Unit Hardware User’s Manual NJ-series CPU Unit Software User’s Manual NJ-series Instructions Reference Manual NJ-series CPU Unit Motion Control User’s Manual NJ-series CPU Unit Built-in EtherCAT Port User’s Manual NJ-series Motion Control Instructions Reference Manual NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual NJ-series Database Connection CPU Unit User’s Manual NJ-series Troubleshooting Manual NX-series EtherCAT Coupler Unit User’s Manual NX-series NX Units User’s Manuals NX-series Safety Control Unit User’s Manual NX-series Safety Control Unit Instructions Reference Manual NX-series Data Reference Manual CJ-series Special Unit Operation Manuals for NJ-series CPU Unit

Manual Structure
4NJ-series Troubleshooting Manual (W503)
Manual Structure
The following page structure is used in this manual.
Special information in this manual is classified as follows:
Note References are provided to more detailed or related information.
Page Structure
Special Information
Precautions for Safe Use
Precautions on what to do and what not to do to ensure safe usage of the product.
Precautions for Correct Use
Precautions on what to do and what not to do to ensure proper operation and performance.
Additional Information
Additional information to read as required.
This information is provided to increase understanding or make operation easier.
4-9
4 Installation and Wiring
NJ-series CPU Unit Hardware User’s Manual (W500)
stinUgnitnuoM3-4
4
stnenopmoCrellortnoCgnitcennoC1-3-4
4-3 MountingUnits
The Units that make up an NJ-series Controller can be connected simply by pressing the Units together
and locking the sliders by moving them toward the back of the Units. The End Cover is connected in the
same way to the Unit on the far right side of the Controller.
1Join the Units so that the connectors fit exactly.
2The yellowsliders at the top and bottom of each Unit lock the Units together. Move the sliders
toward the back of the Units as shown belowuntil they click into place.
Precautions for Correct UsePrecautions for Correct Use
4-3-1 ConnectingController Components
Connector
Hook Hook holes
Slider
Lock
Release
Move the sliders toward the back
until they lock into place.
Level 1 heading
Level 2 heading
Level 3 heading
Level 2 heading
A step in a procedure
Manual name
Special information
Level 3 heading
Page tab
Gives the current
headings.
Indicates a procedure.
Icons indicate
precautions, additional
information, or reference
information.
Gives the number
of the main section.
This illustration is provided only as a sample. It may not literally appear in this manual.
The sliders on the tops and bottoms of the Power Supply Unit, CPU Unit, I/O Units, Special I/O
Units, and CPU Bus Units must be completely locked (until they click into place) after connecting
the adjacent Unit connectors.

5
Manual Structure
NJ-series Troubleshooting Manual (W503)
In this manual, “download” refers to transferring data from the Sysmac Studio to the physical Controller
and “upload” refers to transferring data from the physical Controller to the Sysmac Studio.
For the Sysmac Studio, synchronization is used to both upload and download data. Here, “synchronize”
means to automatically compare the data for the Sysmac Studio on the computer with the data in the
physical Controller and transfer the data in the direction that is specified by the user.
Precaution on Terminology

Manual Structure
6NJ-series Troubleshooting Manual (W503)

7
Sections in this Manual
NJ-series Troubleshooting Manual (W503)
Sections in this Manual
1
2
3
1
2
3
I
Overview of Errors
Error TroubleshootingMethods
Error Tables
IIndex

Sections in this Manual
8NJ-series Troubleshooting Manual (W503)

9
NJ-series Troubleshooting Manual (W503)
CONTENTS
CONTENTS
Introduction............................................................................................................... 1
Relevant Manuals...................................................................................................... 2
Manual Structure ...................................................................................................... 4
Sections in this Manual............................................................................................ 7
Terms and Conditions Agreement........................................................................ 11
Safety Precautions ................................................................................................. 13
Precautions for Safe Use ....................................................................................... 14
Precautions for Correct Use.................................................................................. 15
Regulations and Standards................................................................................... 16
Unit Versions........................................................................................................... 18
Related Manuals ..................................................................................................... 21
Revision History ..................................................................................................... 24
Section 1 Overview of Errors
1-1 Overview of NJ-series Errors .................................................................................................1-2
1-1-1 Types of Errors............................................................................................................................ 1-2
1-1-2 CPU Unit Status.......................................................................................................................... 1-3
1-2 Fatal Errors............................................................................................................................... 1-4
1-2-1 Types of Fatal Errors................................................................................................................... 1-4
1-2-2 Checking for Fatal Errors............................................................................................................ 1-4
1-3 Non-fatal Errors ....................................................................................................................... 1-5
1-3-1 Types of Non-fatal Errors............................................................................................................ 1-5
1-3-2 Checking for Non-fatal Errors ................................................................................................... 1-12
1-3-3 Resetting Non-fatal Errors........................................................................................................ 1-14
Section 2 Error Troubleshooting Methods
2-1 Troubleshooting Flowcharts...................................................................................................2-2
2-1-1 Checking to See If the CPU Unit Is Operating............................................................................ 2-2
2-1-2 Troubleshooting Flowchart for Non-fatal Errors .......................................................................... 2-3
2-2 Troubleshooting Fatal Errors.................................................................................................. 2-4
2-3 Troubleshooting Non-fatal Errors .......................................................................................... 2-5
2-3-1 Identifying and Resetting Errors with the Sysmac Studio........................................................... 2-5
2-3-2 Identifying and Resetting Errors with an NS-series PT .............................................................. 2-9
2-3-3 Identifying and Resetting Errors from the User Program.......................................................... 2-11
2-3-4 Checking for Errors with System-defined Variables.................................................................. 2-13
2-4 Troubleshooting When You Cannot Go Online from the Sysmac Studio......................... 2-14
2-4-1 Causes and Correction When You Cannot Go Online from the Sysmac Studio....................... 2-14
2-4-2 Troubleshooting for Each Cause............................................................................................... 2-15

10 NJ-series Troubleshooting Manual (W503)
CONTENTS
Section 3 Error Tables
3-1 Errors by Source......................................................................................................................3-2
3-1-1 Interpreting Error Descriptions....................................................................................................3-2
3-1-2 Errors in the PLC Function Module.............................................................................................3-2
3-1-3 Errors in the Motion Control Function Module...........................................................................3-46
3-1-4 Errors in the EtherNet/IP Function Module ...............................................................................3-74
3-1-5 Errors in the EtherCAT Master Function Module.......................................................................3-78
3-1-6 Errors in the DB Connection Service Function .........................................................................3-82
3-1-7 Errors in Slave Terminals..........................................................................................................3-87
3-1-8 Errors in EtherCAT Slaves.......................................................................................................3-108
3-1-9 Errors in CJ-series Units.........................................................................................................3-129
3-2 Events in Order of Event Codes.........................................................................................3-149
3-2-1 Interpreting Error Descriptions................................................................................................3-149
3-2-2 Error Table...............................................................................................................................3-150
3-3 Instruction Error Table ........................................................................................................3-182
Index

11
Terms and Conditions Agreement
NJ-series Troubleshooting Manual (W503)
Terms and Conditions Agreement
Please read and understand this catalog before purchasing the products. Please consult your OMRON
representative if you have any questions or comments.
Exclusive Warranty
Omron’s exclusive warranty is that the Products will be free from defects in materials and workman-
ship for a period of twelve months from the date of sale by Omron (or such other period expressed in
writing by Omron). Omron disclaims all other warranties, express or implied.
Limitations
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF
THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based
on infringement by the Products or otherwise of any intellectual property right.
Buyer Remedy
Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally
shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-com-
plying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal
to the purchase price of the non-complying Product; provided that in no event shall Omron be
responsible for warranty, repair, indemnity or any other claims or expenses regarding the Products
unless Omron’s analysis confirms that the Products were properly handled, stored, installed and
maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of
any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies
shall not be liable for the suitability or unsuitability or the results from the use of Products in combi-
nation with any electrical or electronic components, circuits, system assemblies or any other materi-
als or substances or environments. Any advice, recommendations or information given orally or in
writing, are not to be construed as an amendment or addition to the above warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CON-
SEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY
WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT,
WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on
which liability is asserted.
Read and understand this Manual
Warranty, Limitations of Liability
Warranties
Limitation on Liability; Etc

Terms and Conditions Agreement
12 NJ-series Troubleshooting Manual (W503)
Omron Companies shall not be responsible for conformity with any standards, codes or regulations
which apply to the combination of the Product in the Buyer’s application or use of the Product. At
Buyer’s request, Omron will provide applicable third party certification documents identifying ratings
and limitations of use which apply to the Product. This information by itself is not sufficient for a com-
plete determination of the suitability of the Product in combination with the end product, machine, sys-
tem, or other application or use. Buyer shall be solely responsible for determining appropriateness of
the particular Product with respect to Buyer’s application, product or system. Buyer shall take applica-
tion responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or
any consequence thereof.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for
the user in determining suitability and does not constitute a warranty. It may represent the result of
Omron’s test conditions, and the user must correlate it to actual application requirements. Actual perfor-
mance is subject to the Omron’s Warranty and Limitations of Liability.
Product specifications and accessories may be changed at any time based on improvements and other
reasons. It is our practice to change part numbers when published ratings or features are changed, or
when significant construction changes are made. However, some specifications of the Product may be
changed without any notice. When in doubt, special part numbers may be assigned to fix or establish
key specifications for your application. Please consult with your Omron’s representative at any time to
confirm actual specifications of purchased Product.
Information presented by Omron Companies has been checked and is believed to be accurate; how-
ever, no responsibility is assumed for clerical, typographical or proofreading errors or omissions.
Application Considerations
Suitability of Use
Programmable Products
Disclaimers
Performance Data
Change in Specifications
Errors and Omissions

13
Safety Precautions
NJ-series Troubleshooting Manual (W503)
Safety Precautions
Refer to the following manuals for safety precautions.
• NJ-series CPU Unit Hardware User’s Manual (Cat No. W500)
• NJ-series CPU Unit Software User’s Manual (Cat No. W501)

Precautions for Safe Use
14 NJ-series Troubleshooting Manual (W503)
Precautions for Safe Use
Refer to the following manuals for precautions for the safe use of the NJ-series Controller.
Installation precautions are also provided for the NJ-series CPU Unit and the NJ-series Controller sys-
tem.
• NJ-series CPU Unit Hardware User’s Manual (W500)
• NJ-series CPU Unit Software User’s Manual (W501)

15
Precautions for Correct Use
NJ-series Troubleshooting Manual (W503)
Precautions for Correct Use
Refer to the following manuals for precautions for the correct use of the NJ-series Controller.
Installation precautions are also provided for the NJ-series CPU Unit and the NJ-series Controller sys-
tem.
• NJ-series CPU Unit Hardware User’s Manual (W500)
• NJ-series CPU Unit Software User’s Manual (W501)

Regulations and Standards
16 NJ-series Troubleshooting Manual (W503)
Regulations and Standards
• EMC Directives
• Low Voltage Directive
EMC Directive
OMRON devices that comply with EC Directives also conform to the related EMC standards so that
they can be more easily built into other devices or the overall machine. The actual products have
been checked for conformity to EMC standards.*
Whether the products conform to the standards in the system used by the customer, however, must
be checked by the customer. EMC-related performance of the OMRON devices that comply with EC
Directives will vary depending on the configuration, wiring, and other conditions of the equipment or
control panel on which the OMRON devices are installed. The customer must, therefore, perform the
final check to confirm that devices and the overall machine conform to EMC standards.
* Applicable EMC (Electromagnetic Compatibility) standards are as follows:
EMS (Electromagnetic Susceptibility): EN 61131-2 and EN 61000-6-2
EMI (Electromagnetic Interference): EN 61131-2 and EN 61000-6-4 (Radiated emission: 10-m regulations)
Low Voltage Directive
Always ensure that devices operating at voltages of 50 to 1,000 VAC and 75 to 1,500 VDC meet the
required safety standards. The applicable directive is EN 61131-2.
Conformance to EC Directives
The NJ-series Controllers comply with EC Directives. To ensure that the machine or device in which
the NJ-series Controller is used complies with EC Directives, the Controller must be installed as fol-
lows:
• The NJ-series Controller must be installed within a control panel.
• You must use reinforced insulation or double insulation for the DC power supplies connected to
DC Power Supply Units and I/O Units.
• NJ-series Controllers that comply with EC Directives also conform to the Common Emission Stan-
dard (EN 61000-6-4). Radiated emission characteristics (10-m regulations) may vary depending
on the configuration of the control panel used, other devices connected to the control panel, wir-
ing, and other conditions.
You must therefore confirm that the overall machine or equipment complies with EC Directives.
Conformance to EC Directives
Applicable Directives
Concepts

17
Regulations and Standards
NJ-series Troubleshooting Manual (W503)
Observe the following precaution if you use NX-series Units in Korea.
Class A Device (Broadcasting Communications Device for Office Use)
This device obtained EMC registration for office use (Class A), and it is intended to be used in places
other than homes.
Sellers and/or users need to take note of this.
The NJ-series Controllers comply with the following shipbuilding standards. Applicability to the ship-
building standards is based on certain usage conditions. It may not be possible to use the product in
some locations. Contact your OMRON representative before attempting to use a Controller on a
ship.
• The NJ-series Controller must be installed within a control panel.
• Gaps in the door to the control panel must be completely filled or covered with gaskets or other
material.
• The following noise filter must be connected to the power supply line.
Noise Filter
This product incorporates certain third party software. The license and copyright information associ-
ated with this software is available at http://www.fa.omron.co.jp/nj_info_e/.
Conformance to KC Standards
Conformance to Shipbuilding Standards
Usage Conditions for NK and LR Shipbuilding Standards
Manufacturer Model
Cosel Co., Ltd. TAH-06-683
Software Licenses and Copyrights

Unit Versions
18 NJ-series Troubleshooting Manual (W503)
Unit Versions
A “unit version” has been introduced to manage CPU Units in the NJ Series according to differences in
functionality accompanying Unit upgrades.
The unit version is given on the ID information label of the products for which unit versions are man-
aged, as shown below.
Example for NJ-series NJ501-@@@@ CPU Unit:
The following information is provided on the ID information label.
You can use the Unit Production Information on the Sysmac Studio to check the unit version of the CPU
Unit, CJ-series Special I/O Units, CJ-series CPU Bus Units, and EtherCAT slaves. The unit versions of
CJ-series Basic I/O Units cannot be checked from the Sysmac Studio.
CPU Unit and CJ-series Units
1Double-click CPU/Expansion Racks under Configurations and Setup in the Multiview
Explorer. Or, right-click CPU/Expansion Racks under Configurations and Setup and select
Edit from the menu.
The Unit Editor is displayed for the Controller Configurations and Setup layer.
Unit Versions
Notation of Unit Versions on Products
Item Description
Unit model Gives the model of the Unit.
Unit version Gives the unit version of the Unit.
Lot number and
serial number Gives the lot number and serial number of the Unit.
DDMYY: Lot number, @: For use by OMRON, xxxx: Serial number
“M” gives the month (1 to 9: January to September, X: October, Y: November, Z: December)
MAC address Gives the MAC address of the built-in port on the Unit.
Confirming Unit Versions with Sysmac Studio
ID information label
Unit model Unit version
Lot number and serial number MAC address
NJ501 -1500 Ver.1.@@
PORT1 MAC ADDRESS: @@@@@@@@@@@@
PORT2 MAC ADDRESS: @@@@@@@@@@@@
Lot No. DDMYY@xxxx