Do not place objects on top of communication cables.
Always wire communication cables through a duct.
Abide by the specifications for a communication distance and the
number of Units to be connected.
When replacing parts, be sure to confirm that the rating of a new part is
correct. Not doing so may result in malfunction or burning.
Before touching the Unit, be sure to first touch a grounded metallic object
in order to discharge any static built-up. Not doing so may result in
malfunction or damage.
Use a dedicated packing box to transport the Unit. Avoid excessive
shock or vibration during transportation.
Always use two end plates to keep certainly connection side by side
(E3NW-DS).
Please connect shield wire of a communication cable between the Distributed
sensor unit to only a negative terminal of 24VDC of the dispersion unit of either.
Please don't connect shield wire to both units.
Mount the included ferrite cores (model: ZCAT1730-0730, manufacturer:
TDK Corporation) on both sides of the communication cable.
Unit Assembly Precautions
When connecting the Power Supply Unit, CPU Unit, I/O Units, Special
I/O Units, or CPU Bus Units, slide the upper and lower sliders until a click
sound is heard to lock them securely. Desired functionality may not be
achieved unless Units are securely locked in place.
Be sure to mount the end cover supplied with the CPU Unit to the
rightmost Unit. Unless the end cover is properly mounted, the CJ-series
PLC may not function properly.
Reference Manuals
Please be sure to read the related user manuals in order to use the PLC
safely and properly. Be sure you are using the most current version of the
manual.
Safety Precautions
OMRON Corporation
©
OMRON Corporation 2013 All Rights Reserved
Thank you for purchasing an OMRON Distributed sensor unit. To ensure safe operation, please be sure to read this document along with the manuals
for EtherCAT Slave Unit. Please be sure you are using the most recent versions of the user manuals. Contact your nearest OMRON representative to
obtain manuals. Keep this document and all user manuals in a safe location and be sure that they are readily available to the final user of the products.
General Precautions
The user must operate the product according to the performance
specifications described in the operation manuals.
Before using the product under conditions which are not described in the
manual or applying the product to nuclear control systems, railroad systems,
aviation systems, vehicles, combustion systems, medical equipment,
amusement machines, safety equipment, petrochemical plants, and other
systems, machines, and equipment that may have a serious influence on
lives and property if used improperly, consult your OMRON representative.
Make sure that the ratings and performance characteristics of the product
are sufficient for the systems, machines, and equipment, and be sure to
provide the systems, machines, and equipment with double safety
mechanisms.
Safety Precautions
Definition of Precautionary Information
DANGER
WARNING
Caution
Warnings and Cautions
WARNING
WARNING
WARNING
WARNING
Emergency stop circuits, interlock circuits, limit circuits, and similar safety
measures must be provided in external control circuits.
The PLC will turn OFF all outputs when its self-diagnosis function detects
any error or when a severe failure alarm (FALS) instruction is executed.
As a countermeasure for such errors, external safety measures must be
provided to ensure safety in the system.
The PLC outputs may remain ON or OFF due to deposition or burning of
the output relays or destruction of the output transistors. As a
countermeasure for such problems, external safety measures must be
provided to ensure safety in the system.
When the 24-VDC output (service power supply to the PLC) is
overloaded or shortcircuited, the voltage may drop and result in the
outputs being turned OFF. As a countermeasure for such problems,
external safety measures must be provided to ensure safety in the system.
Indicates an imminently hazardous situation which, if
not avoided, will result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury, or
property damage.
Do not attempt to take any Unit apart while the power is
being supplied. Doing so may result in electric shock.
Do not touch any of the terminals or terminal blocks
while the power is being supplied. Doing so may result in
electric shock.
Do not attempt to disassemble, repair, or modify any
Units. Any attempt to do so may result in malfunction,
fire, or electric shock.
Provide safety measures in external circuits, i.e., not in
the Programmable Controller (CPU Unit including
associated Units; referred to as “PLC”), in order to
ensure safety in the system if an abnormality occurs due
to malfunction of the PLC or another external factor
affecting the PLC operation. Not doing so may result in
serious accidents.
WARNING
WARNING
Transferring the contents of I/O Memory Area to the CPU Unit with a
Programming Device
Changing the present values with a Programming Device
Force-setting/force-resetting any bit in memory with a Programming
Device
Transferring the contents of I/O Memory Area to the CPU Unit with a
Memory Card or EM File Memory
Transferring the contents of I/O Memory by another PLC or a host
computer on the network
Caution
Caution
Operating Environment Precautions
Caution
Locations subject to direct sunlight
Locations subject to temperatures or humidity outside the range
specified in the specifications
Locations subject to condensation as the result of severe changes in
temperature
Locations subject to corrosive or flammable gases
Locations subject to dust (especially iron dust) or salts
Locations subject to exposure to water, oil, or chemicals (excluding the
waterproof type)
Locations subject to exposure to oil, acid, or chemicals (only for the
waterproof type)
Locations subject to shock or vibration
Caution
Locations subject to static electricity or other forms of noise
Locations subject to strong electromagnetic fields
Locations subject to possible exposure to radioactivity
Locations close to power supplies
Caution
Fail-safe measures must be taken by the customer to
ensure safety in the event of incorrect, missing, or
abnormal signals caused by broken signal lines,
momentary power interruptions, or other causes. Not
doing so may result in serious accidents.
The CPU Unit is I/O refreshing even in an
operation-stopped state (Programming Mode).
Therefore, confirm safety when changing data of Output
bits allocated to Output Units, or of each CIO Area
allocated to Special I/O Units or CPU Bus Units.
Unexpected operation may occur in the loads connected
to Output Units, Special I/O Units, or CPU Bus Units.
Pay careful attention to the polarities (+/-) when wiring. A
wrong connection may cause malfunction of the system.
Tighten the screws on the terminal blocks to the torque
specified in the operation manual. The loose screws may
result in burning, malfunction, or a failure.
Do not install the Unit in the following places:
Take appropriate and sufficient countermeasures when
using the Unit in the following locations:
The operating environment of the PLC System can have
a large effect on the longevity and reliability of the system.
Improper operating environments can lead to
malfunction, failure, and other unforeseeable problems
with the PLC System. Be sure that the operating
environment is within the specified conditions at
installation and remains within the specified conditions
during the life of the system.
Application Precautions
WARNING
Always connect to 100 Ω or less when installing the Units. Not
connecting to a ground of 100 Ω or less may result in electric shock.
Mount the Units securely to a DIN Track or with screws.
Always turn OFF the power supply to the PLC, Slave Units, and
communication devices, before attempting any of the following. Not
turning OFF the power supply may result in malfunction or electric shock.
Mounting or dismounting I/O Units, CPU Units, Power Supply Units,
Memory Cassettes, Master Units, or any other Units
Mounting or dismounting terminal blocks on Remote I/O terminals
Assembling the Units
Setting DIP switches or rotary switches
Connecting or wiring the cables
Caution
Always use the power supply voltage specified in the operation manuals.
An incorrect voltage may result in malfunction or burning.
Take appropriate measures to ensure that the specified power with the
rated voltage and frequency is supplied. Be particularly careful in places
where the power supply is unstable. An incorrect power supply may
result in malfunction.
Install external breakers and take other safety measures against
short-circuiting in external wiring. Insufficient safety measures against
short-circuiting may result in burning.
Do not apply voltages to the Input Units in excess of the rated input
voltage. Excess voltages may result in burning.
Do not apply voltages or connect loads to the Output Units in excess of
the maximum switching capacity. Excess voltage or loads may result in
burning.
Install the Unit properly as specified in the operation manual. Improper
installation of the Unit may result in malfunction.
Be sure that all the terminal screws and cable connector screws of Slave
Units are tightened to the torque specified in the relevant manuals.
Incorrect tightening torque may result in malfunction.
Use correct wiring parts for wiring.
Wire correctly and double-check all the wiring or the setting switches
before turning ON the power supply. Incorrect wiring may result in
burning.
Do not let a piece of metal enter the Units when wiring or installing.
Be careful of voltage ratings when wiring a communication path with the
Power Supply Unit and I/O Units. Wrong wiring may cause a failure.
Wire correctly as specified in the manual.
Be sure that the terminal blocks, communication cables, and other items
with locking devices are properly locked into place. Improper locking may
result in malfunction.
Check the user program for proper execution before actually running it
on the Unit. Not checking the program may result in an unexpected
operation.
Do not drop the Units or give the Units excessive vibration or shock.
Doing so may cause a failure or malfunction.
Confirm that no adverse effect will occur in the system before attempting
any of the following. Not doing so may result in an unexpected operation.
Changing the operating mode of the PLC
Force-setting/force-resetting any bit in memory.
Changing the present value or any set value of any word in a user program
Resume operation only after transferring to the new CPU Unit and/or
Special I/O Units the contents of the DM and HR Areas required for
resuming operation. Not doing so may result in an unexpected operation.
Tighten the screws on the cover to the specified torque after setting the
rotary switches and wiring. Insufficient tightening torque may result in an
inadequate protective structure. (Only for the waterproof type)
Do not pull on the cables or bend the cables beyond their natural limit.
Doing either of these may break the cables.
Always use specified communication cables and connectors.
Be careful of the following when wiring communication cables.
Keep communication cables away from power lines and high-voltage lines.
Do not bend communication cables.
Do not pull communication cables excessively.
Always heed these precautions. Failure to abide by the
following precautions could lead to serious or possibly
fatal injury.
Failure to abide by the following precautions could lead to
faulty operation of the PLC or the system, or could
damage the PLC or PLC Units. Always heed these
precautions.
9908973-8C
Model/Manual name
E3NW-ECT
Operation Manual
E3NW-ECT
E3NW-DS
OMRON Corporation
Suitability for Use
EUROPE
OMRON EUROPE B.V. Sensor Business Unit
Carl-Benz Str.4, D-71154 Nufringen Germany
Phone:49-7032-811-0 Fax: 49-7032-811-199
NORTH AMERICA
OMRON ELECTRONICS LLC
One Commerce Drive Schaumburg,IL 60173-5302 U.S.A.
Phone:1-847-843-7900 Fax : 1-847-843-7787
ASIA-PACIFIC
OMRON ASIA PACIFIC PTE. LTD.
No. 438A Alexandra Road #05-05-08(Lobby 2),
Alexandra Technopark, Singapore 119967
Phone : 65-6835-3011 Fax :65-6835-2711
o
THE PRODUCTS CONTAINED IN THIS SHEET ARE NOT SAFETY
RATED. THEY ARE NOT DESIGNED OR RATED FOR ENSURING
SAFETY OF PERSONS, AND SHOULD NOT BE RELIED UPON AS A
SAFETY COMPONENT OR PROTECTIVE DEVICE FOR SUCH
PURPOSES.
Please refer to separate catalogs for OMRON's safety rated products.
OMRON shall not be responsible for conformity with any standards, codes,
or regulations that apply to the combination of the products in the
customer's application or use of the product.
Take all necessary steps to determine the suitability of the product for the
systems, machines, and equipment with which it will be used.
Know and observe all prohibitions of use applicable to this product.
NEVER USE THE PRODUCTS 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 IS PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL
EQUIPMENT OR SYSTEM.
See also Product catalog for Warranty and Limitation of Liability.
CHINA
OMRON(CHINA) CO., LTD.
Room 2211, Bank of China Tower,
200 Yin Cheng Zhong Road,
PuDong New Area, Shanghai, 200120, China
Phone : 86-21-5037-2222 Fax :86-21-5037-2200
OCT, 2009
Manufacturer:
Omron Corporation,
Shiokoji Horikawa, Shimogyo-ku,
Kyoto 600-8530 JAPAN
Shanghai Factory
No.789 Jinji Road,
Jinqiao Export Processing District,
Pudong New Area,Shanghai,201206 CHINA
TRACEABILITY INFORMATION:
Representative in EU:
Omron Europe B.V.
Wegalaan 67-69
2132 JD Hoofddorp,
The Netherlands
E3NW-DS
Distributed sensor unit
Cat No.
E429
