Omron E3U-GS User manual

1E3U-GS
Photoelectric sensors in metal fork shape housing
E3U-GS
The fork shape of the E3U-GS photoelectric sensors provides
simple installation, positioning and alignment for the detection
of objects. The rugged metal housing provides protection
against damage and misalignment even for slot sizes up to
220 mm
• Slot sizes from 30 to 220 mm
• Visible red LED or LASER LD for simple and precise
positioning
• Rugged metal housing for protection against damage and
misalignment
• Easy adjustment by potentiometer and L-on/D-on switch
Features
Collimated Laser Beam (for E3U-GS_L_)
The collimated Laser beam of the E3U-GS_L ensures
that the detection accuracy can be maintained across the
complete slot width. This allows a detection of smallest
objects with dia 100 µm (E3U-GS5L-_).
Ordering Information
Accessories
Sensor I/O connectors
Note: For the complete list of sensor I/O connectors refer to E26E Accessories datasheet.
Sensor type Sensing distance Connection method Order Code
NPN output PNP output
Through-beam Red light 30 mm slot width ––– E3U-GS3-C4-M5 E3U-GS3-B4-M5
50 mm slot width ––– E3U-GS5-C4-M5 E3U-GS5-B4-M5
80 mm slot width ––– E3U-GS8-C4-M5 E3U-GS8-B4-M5
120 mm slot width ––– E3U-GS12-C4-M5 E3U-GS12-B4-M5
220 mm slot width ––– E3U-GS22-C4-M5 E3U-GS22-B4-M5
Red LASER light 50 mm slot width ––– E3U-GS5L-C4-M5 E3U-GS5L-B4-M5
80 mm slot width ––– E3U-GS8L-C4-M5 E3U-GS8L-B4-M5
120 mm slot width ––– E3U-GS12L-C4-M5 E3U-GS12L-B4-M5
Size Shape Type Features Material Order code
Nut Cable
M8 General pur-
pose
(screw)
3 pin Brass (CuZn) PVC 2 m
PUR 2 m
XS3F-M8PVC3S2M
XS3F-M8PUR3S2M
XS3F-M8PVC3A2M
XS3F-M8PUR3A2M
Non-collimated Laser beam
Collimated Laser beam of E3U-GS_L_

2Photoelectric Sensors
Specifications
Output Circuit Diagram
PNP NPN
E3U-GS_ E3U-GS_L-_
Slot width 30 mm 50 mm 80 mm 120 mm 220 mm 50 mm 80 mm 120 mm
Light source
(wave length)
Red LED (660 nm) Red LD (670 nm)
Min. detectable object
size
dia 0.5 mm dia 0.8 mm dia 1.5 mm dia 0.1 mm dia 0.2 mm
Laser class - 2 (EN 60825-1)
Power supply voltage 10 to 35 VDC
Operating frequency 4,000 Hz 2,000 Hz 3,000 Hz
Control output Transistor, Load current 200 mA max., light-ON/dark-ON switch selectable
Sensitivity adjustment one turn potentiometer adjuster
Side by side mounting
(gang mounting)
possible not possible possible
Ambient illumination 10,000 lx max. 5,000 lx max.
Ambient temperature Operating: -10°C to 60°C
Degree of protection IEC 60529: IP67
Indicators Operation indicator (yellow)
Weight 40 g 50 g 60 g 70 g 90 g 50 g 60 g 70 g
Material (case) zinc diecast, black lacquered finished Aluminium,
black anod-
ized
zinc diecast, black lacquered finished
1
4
3
Brown
Black
Blue
10 to 35VDC
0V
Load
1
4
3
Brown
Black
Blue
10 to 35VDC
0V
Load
3
1
4
M8connector
(3pin)
Pin Arrangement

3E3U-GS
Dimensions
E3U-GS3_
E3U-GS5_
E3U-GS8_
M8
L-ON/D-ON
Sensitivity
adjuster
Operation LED
(yellow)
M8
L-ON/D-ON
Sensitivity
adjuster
Operation LED
(yellow)
M8
Operation LED
(yellow)
L-ON/D-ON
Sensitivity
adjuster

4Photoelectric Sensors
E3U-GS12_
E3U-GS22_
100
20
5
22
12
37
52
62
3060
10
10
Operation
LED
(yellow)
120
10 12
M8
L-ON/D-ON
Sensitivity
adjuster
Ø4,3
200
20
5
22
12
37
52
62
30 110
10
10
Operation
LED
(yellow)
220
1012
M8
L-ON/D-ON
Sensitivity
adjuster
Ø4,3

5E3U-GS
Safety precautions
This product is not designed or rated for directly or
indirectly ensuring safety of persons. Do not use it for
such a purpose.
Do not use the product with voltage in excess of the
rated voltage. Excess voltage may result in malfunc-
tion or fire.
Never use the product with an AC power supply.
Otherwise, explosion may result.
When cleaning the product, do not apply a high-pres-
sure spray of water to one part of the product. Other-
wise, parts may become damaged and the degree of
protection may be degraded.
High-temperature environments may result in burn
injury.
The following precautions must be observed to ensure safe
operation of the Sensor.
Operating Environment
Do not use the Sensor in an environment where explosive or
flammable gas is present.
Connecting Connectors
Be sure to hold the connector cover when inserting or removing
the connector. Be sure to tighten the connector lock by hand;
do not use pliers or other tools. If the tightening is insufficient, the
degree of protection will not be maintained and the Sensor may
become loose due to vibration. The appropriate tightening torque
is 0.4 to 0.5 N·m for M12 connectors and 0.3 Nm for M8 connec-
tors.
Load
Do not use a load that exceeds the rated load.
Environements with Cleaners and Disinfectants
Do not use the Sensor in environments subject to cleaners and
disifectants. They may reduce the degree of protection.
Modifications
Do not attempt to disassemble, repair, or modify the Sensor.
Outdoor Use
Do not use the Sensor in locations subject to direct sunlight.
Cleaning
Do not use thinner, alcohol, or other organic solvents. Otherwise,
the optical properties and degree of protection may be degraded.
Surface Temperature
Burn injury may occur. The Sensor surface temperature rises de-
pending on application conditions, such as the surrounding tem-
perature and the power supply voltage. Use caution when
operating or washing the Sensor.
Do not use the Sensor in any atmosphere or environment that
exceeds the ratings.
Do not install the Sensor in the following locations.
(1)Locations subject to direct sunlight
(2)Locations subject to condensation due to high humidity
(3)Locations subject to corrosive gas
(4)Locations where the Sensor may receive direct vibration or
shock
Connecting and Mounting
(1)The maximum power supply voltage is 35 VDC. Before turning
the power ON, make sure that the power supply voltage does
not exceed the maximum voltage.
(2)Laying Sensor wiring in the same conduit or duct as high-volt-
age wires or power lines may result in malfunction or damage
due to induction. As a general rule, wire the Sensor in a sepa-
rate conduit or use shielded cable.
(3)Use an extension cable with a minimum thickness of 1 mm2
and less than 100 m long.
(4)Do not pull on the cable with excessive force.
(5)Pounding the Sensor with a hammer or other tool during
mounting will impair water resistance.
(6)Mount the Sensor either using a suitable bracket or on a flat
surface.
(7)Be sure to turn OFF the power supply before inserting or re-
moving the connector.
Power Supply
If a commercial switching regulator is used, ground the FG (frame
ground) terminal.
Turning OFF the Power Supply
Output pulses may be generated even when the power supply is
OFF. Therefore, it is recommended to first turn OFF the power
supply for the load or the load line.
Load Short-circuit Protection
This Sensor is equipped with load short-circuit protection, but be
sure to not short circuit the load. Be sure to not use an output cur-
rent flow that exceeds the rated current.
Water Resistance
Do not use the Sensor in water, rainfall, or outdoors.
!Warning
!Caution
Precautions for Safe Use
Precautions for Correct Use

6Photoelectric Sensors
WARRANTY
OMRON’s exclusive warranty is that the products are free from de-
fects in materials and workmanship for a period of one year (or other
period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EX-
PRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MER-
CHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF
THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT
THE BUYER OR USER ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF
THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WAR-
RANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDI-
RECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR
COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE
PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT,
WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall responsibility of OMRON for any act exceed the in-
dividual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRAN-
TY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS
UNLESS OMRON’S ANALYSIS CONFIRMS THAT THE PROD-
UCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND
MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE,
MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
SUITABILITY FOR USE
THE PRODUCTS CONTAINED IN THIS DOCUMENT ARE NOT
SAFETY RATED. THEY ARE NOT DESIGNED OR RATED FOR EN-
SURING 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 OM-
RON's safety rated products.
OMRON shall not be responsible for conformity with any standards,
codes, or regulations that apply to the combination of products in the
customer’s application or use of the product.
At the customer’s request, OMRON will provide applicable third party
certification documents identifying ratings and limitations of use that
apply to the products. This information by itself is not sufficient for a
complete determination of the suitability of the products in combina-
tion with the end product, machine, system, or other application or
use.
The following are some examples of applications for which particular
attention must be given. This is not intended to be an exhaustive list
of all possible uses of the products, nor is it intended to imply that the
uses listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or
electrical interference, or conditions or uses not described in this
document.
• Nuclear energy control systems, combustion systems, railroad sys-
tems, aviation systems, medical equipment, amusement machines,
vehicles, safety equipment, and installations subject to separate in-
dustry or government regulations.
• Systems, machines, and equipment that could present a risk to life
or property.
Please know and observe all prohibitions of use applicable to the
products.
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.
PERFORMANCE DATA
Performance data given in this document 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 users
must correlate it to actual application requirements. Actual perfor-
mance is subject to the OMRON Warranty and Limitations of Liability.
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time
based on improvements and other reasons.
It is our practice to change model 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 model numbers may be as-
signed to fix or establish key specifications for your application on
your request. Please consult with your OMRON representative at any
time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for man-
ufacturing purposes, even when tolerances are shown.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is
believed to be accurate; however, no responsibility is assumed for
clerical, typographical, or proofreading errors, or omissions.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user’s programming of a pro-
grammable product, or any consequence thereof.
In the interest of product improvement, specifications are subject to change without notice.Cat. No. E68E-EN-01
OMRON EUROPE B.V.
Wegalaan 67-69,
NL-2132 JD, Hoofddorp,
The Netherlands
Phone: [phone]
Fax: [phone]
www.industrial.omron.eu