
©OMRON Corporation 1998 All Rights Reserved.
INSTRUCTION SHEET
Thank you for selecting OMRON product. This sheet pri-
marily describes precautions required in installing and
operating the product.
Before operating the product, read the sheet thoroughly to
acquire sufficient knowledge of the product. For your con-
venience, keep the sheet at your disposal.
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 Telephone Consultation
1-800-55-OMRON Fax : 1-847-843-7787
ASIA-PACIFIC
OMRON ASIA PACIFIC PTE LTD
83 Clemenceau Avenue,#11-01 UE Square,Singapore 239920
Phone : 65-6-835-3011 /Fax :65-6-835-2711
n
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.
LASER PHOTOELECTRIC SWITCH
Model
E3L-2□4
-DS50□4
E3L-2E4 E3L-2B4 E3L-DS50E4 E3L-DS50B4
■RATING ■OPTICAL AXIS ADJUSTMENT
■SENSITIVITY ADJUSTMENT
(Diffuse reflection type)
Detection
type
Item
Model
Detecting distance
Supply voltage
Current consumption
Response time
Control output
Output transistor
Light source
Case material
Degree of protection
Alarm output
Ambient temperature
Humidity
Separate type
2m (When slit of 0.85 dia. is mounted) ※
12 to 24V DC±10% (Ripple (p-p) 10% max.)
50mA 40mA
500μs max.
Output
current : 1.5 to 4mA
Load: 80mA max.
Output
current : 1.5 to 4mA
Load: 80mA max.
NPN type,
constunt current source NPN type,
constunt current source
Laser Diode λp=780nm, 160μW max. class III b: FDA,
class 1: IEC Laser Diode λp=780nm, 110μW max. class III b:FDA ,
class 1: IEC
Die-cast-zinc
IEC 60529 IP67
50mA max. (ON delay time 100ms min.), open collevtor
−10 to40℃
35 to 85% RH
Load: 80mA max. Load: 80mA max.
PNP type,
open collector PNP type,
open collector
Diffuse reflection type
20 to 50cm
*When slit of 0.1 dia. is mounted, the detecting distance is 30cm.
■Precautions for Safe Use
■Precautions for Correct Use
●CONNECTION
●E3L-DS50□4
■DIMENSIONS
●E3L-2L□4
●E3L-2D□4
●E3L-DS50□4
(1)Do not use the sensor in explosive or ignition gas.
(2)Do not use the sensor in the water.
(3)Never disassemble, repair nor tamper with the sensor.
(4)Do not apply excess voltage and current over rating.
(5)Do not wire improperly such as reversing polarity.
(6)Connect the load correctly.
(7)Do not short-circuit the load.
・Routing the wires of the photoelectric switch with high potential power lines may result
malfunction or damage to it because of the inductive effects.
Be sure to route the switch wires separately from the power lines or through an exclusive
conduit.
・For extending wires use a cable 0.3mm2 (No.24AWG) min. and 100m max. in length.
・Excessive forces (hitting by hammer, etc.) should not be put on the photoelectric switch
because they may damage its water resistive characteristic.
・Do not turn the sensitivity adjuster beyond its maximum scale-position, otherwise the
adjuster will be damaged.
●Safety for laser products
The laser photoelectric switch E3L is designed to be installed into end use
equipment. It is classified as a Class III b laser product with the FDA. To be used on
users application, the following safety measures by users are necessary.
・Safety interlocks
The system shall be provided with safety interlock for each portion of the protective
housing which is designed to be removed or displaced during operation or maintenance.
・Laser radiation emission indicator
The systems shall incorporate an emission indicator that provides a visible or
audible signal during emission of laser radiation. The indication shall be activated 2
to 20 seconds before beam emission. The indicator shall be visible for persons
who has a Laser Protection Glass.
・Remote interlocked connector
The systems shall incorporate remote interlock connector having an electrical
potential difference of no greater than 130 Vrms between terminals.
・Laser beam attenuator
The systems shall be provided with permanently attached means which capable of
preventing access by the human body to laser radiation in excess of the accessible
emission limits.
●Precautions
●OPERATING CHART
・There is a risk of laser radiation if this device is used in any way other than as specified.
・Avoid direct eye contact with the laser. Do not look into the laser beam. Class III b levels
of laser radiation are considered to be a chronic viewing hazard.
■Safety of Laser
■SELECTION OF OPERATING MODE
■ALARM OUTPUT
FUNCTION
■CONNECTIONS
●CONNECTION TO LOAD SUCH AS RELAY AND PHOTO-COUPLER
■OUTPUT STAGE CIRCUIT DIAGRAM
●Laser Regulations in the U.S.
E3L laser photoelectric switch is intended to be built in the final system devices.
E3L laser photoelectric switch is based on the laser regulations of the U.S. (FDA : Food &
drug) and as registered with "Center for Devices & Radiological Health (CDRH)".
Registration for CDRH includes the final system device.
●Labels concerning laser
●MODEL E3L-2L□4
●MODEL E3L-DS50□4
●In case of handing the device
●Maintenance and Repair
In case of exporting to the USA, please put the attached FDA label to the sensor
body according to the indication.
・This laser product emits invisible light beam.
・Please do not look directly into the light beam or touch it.
・When approaching within 2m of the emitter, please wear laser protective glasses.
Laser protective glasses are available from:
・Do not disassemble this device for any reason:
・Energizing the laser while the product is disassembled will result in hazardous laser
radiation. Improper disassembly and reassembly may also result in increased laser
radiation hazards in normal use.
・There are no user serviceable parts inside. Return the product to your authorized
OMRON distributor for repairs.
・Fled Read Optical Co., Ltd.
・Glendale Optical Co., Ltd.
●POWER SUPPLY
・
When using a commercially available switching power supply, be sure to ground the FG
(
Frame Ground) and G (Ground) terminals. If this is not done, failure in operation may
happen due to noise created from the switching power supply.
●LENS MATERIAL
・Avoid use in environments with high levels of alkali, aromatic hydrocarbon, and fatty
chloride hydrocarbon, as it will damage the lens of the light receiver unit.
・Avoid use in environments with high levels of strong acid, alcohol and organic solvent, as
it will damage the lens of the emitter unit.
●INDICATION
・The green and red indicators turn on and off as shown in below chart.
・Set the sensitivity adjuster at an appropriate position so that the photoelectric switch
operates within the stable operating range.
・When alarm output is not used, connect the Blue lead wire to 0V (E type) ,+V (B type)
or tape it to avoid other electrical contact.
・Light source
・Lens surface
・
Ambient conditions
・Cabling
……………
……………
……
…………………
A semiconductor laser (wavelength 780 nm) is used as the
emitter light source. Avoid direct eye contact.
The lens is made of polycarbonate which dissolves in alkali,
aromatic, hydrochloric and aliphatic solutions.
Keep the lens of the emitter and receiver free from dust and
dirt to prevent any malfunction.
Avoid use outdoors, dust, and splashing water or oil.
Do not extend the wiring longer than 100m (at 0.3mm2
(No.24AWG) or above). Do not route the sensor's wiring
near a high voltage power line.
1) E3L-2E4
-DS50E4 2) E3L-2B4
-DS50B4
Note 1 : The operating mode is changed by reversing the brown and blue wires.
Note 2 : The Alarm output transistor turns on when the STABILITY indicator (green LED) has
been off for 0.1 second or longer.
Wire color
Connection
of power
supply
Brown
12 to
24V DC
12 to
24V DC
0V
0V
Blue Black(Output)
Output transistor is turned ON
when light is incident.
Output transistor is turned ON
when light is interrupted.
State of
output transistor
Light ON
Dark ON
Light ON Dark ON
※1 In case of B type, between 0V and output. ※2 Voltage output is applied only to E type.
The alarm output function allows the output transistor to
turn on in the following cases.
When the light level received comes down to less than 1.2
times as great as the operating level.
When the signal level comes up to more than 0.8 times as
great as the operating level with the light being
interrupted.
Model
Item
Load condition
Connection
Connection
NOTE
E3L-2□4 E3L-DS50□4
Dark ON: The load operates when
the light is interrupted. Light ON. The load operates when
the light is incident.
To put the projector into the light indication mode connect the pink wire of the projector and
black wire of thc receiver together as shown by the dotted line. For the power indication
mode, in case of E type connect the pink wire of the projector and the blue one of the
receiver,
and in case of B type, connect the pink wire of the projector and the blue one of the receiver.
・Adjust the sensor head vertically and horizontally to
obtain an angular range within which the LIGHT
illuminates, then secure the sensor head at the center
of the range.
At the point, make sure the STABILITY indicator
illuminates green.
●E3L-2□4
・Adjust the respective sender and receiver vertically
and horizontally to obtain an angular range within
which the LIGHT indicator illuminates ; then secure
the light source receiver at the center of the range.
At this point, the STABILITY indicator should
illuminate green. When Pink lead of the light source is
connected to the receiver output (black) , indicator of
the light source can be used for optical adjustment.
Brown(+V)
Blue(0V)
1.5 to 4mA
Orange(Alarm output)
Black(output)
Main
Circuit
Brown(+V)
Blue(0V)
Orange(Alarm output)
Black(output)
Main
Circuit
Incident
Interrupted
LIGHT indicator
(Red)
Output transistor ON
OFF
ON
OFF
Load(relay) Operates
※2
Voltage output
Releases ※1 Between+Vcc and output
Between 0V and output
H
L
(logic)
Control output
〈Black〉
(At L-ON)
Alarm output
〈Orange〉
0.8
1.2
1
Light level received (Operating level)×1.2
Operating level
(Operating level)×0.8
ON
OFF
ON
OFF
Indicator
0.1
min. 0.1
min.
Red
Green GreenGreen
Max.
Min.
A
Set the sensitivity adjuster at the
center between pointsAandB
Point B at which the LIGHT indicator
extinguishes with the object removed,
or the maximum value.
Point A at which the LIGHT
indicator turns to ON(red)
with the object placed in a
fixed position.
B
1. Stable operating range
2. Unstable operating range
3. Stable operating range
4. Receiving light intensity
5. STABILITY indicator(green)
6. INCIDENT LIGHT indicator(red)
O.L. Operating Level
〈E type〉
black
out put out put
out put
orange Alarm output
(50mA max)
(80mA max)
Load
Load
pink
blue blue
12 to
24V DC
12 to
24V DC
brown
brown
0V black
orange
〈E type〉
blue
brown
Alarm output
(50mA max) Load
Load
12 to 24V DC
0V0V
out put
0V
(80mA max)
(80mA max)
black
orange Alarm output
(50mA max)
Load
Load
pink
blue blue
12 to
24V DC
12 to
24V DC
brown
brown
0V
〈B type〉
black
orange
blue
brown
Alarm output
(50mA max) Load
Load
12 to 24V DC
0V
(80mA max)
〈B type〉
ON
O.L×1.2
O.L
O.L×0.8
1.
4. 5. 6.
2.
3.
ON ON
ON
OFF
120
100
80
OFF OFF
OFF
22.2
122232
1.6
20.4
2-M4 SLOTTED
HEXAGON BOLTS
LENS
(4 dia.)
MOUNTING
BRACKET
23
20
2-M4 SLOTTED
HEXAGON BOLTS
LENS
(11 dia.)
MOUNTING
BRACKET
22.2
122232
1.6
20.4
23
20
CORD4.5 dia. (18/0.12dia.)
4CORE STANDARD
LENGTH 2m
34
4.2
11
SENSITIVITY ADJUSTER 26
620
17 24
4.27.2
1121.5
9.2
OPERATION
INDICATOR
50
16
45
2-4.4dia.
13.5
55
45 5
4.9 20
MOUNTING
BRACKET
2-M4 SLTTED HEXAGON BOLTS
OPTICAL AXIS
1.6 70
55 24
20
OPERATION
INDICATOR
20
2-MOUNTING HOLES
MOUNTING SCREW HOLES
6.5 25.4
39
7 (5)
13 dia.
4.2
(R2.1)
CORD 4dia.(18/0.12dia.)3CORE
STANDARD LENGTH 2m
2-M4
25.4
OPERATION
INDICATOR
55 1311
2020
6.5 5
25.4
39
7(5)
13 dia.
(R2.1)
SENSITIVITY ADJUSTER
CORD4.5dia. (18/0.12dia.) 4CORE
STANDARD LENGTH 2m
2-MOUNTING HOLES
MOUNTING SCREW HOLES
4.2
2-M4
25.4
DANGER
AVOID
EXPOSURE
Invisiblelaser
radiationis
emittedfrom
thisaperture
INVISIBLELASERRADIATION
AVOIDDIRECTEXPOSURETOBEAM
PEAKPOWER780μw
WAVELENGTH780nm
CLASSⅢbLASERPRODUCT
DANGER
LABEL
APERTURE LABEL CERTIFICATION LABEL
DANGER
AVOID
EXPOSURE
Invisiblelaser
radiationis
emittedfrom
thisaperture
INVISIBLELASERRADIATION
AVOIDDIRECTEXPOSURETOBEAM
PEAKPOWER780μw
WAVELENGTH780nm
CLASSⅢbLASERPRODUCT
DANGER LABEL
APERTURE LABEL CERTIFICATION LABEL
5
Manufacturedin
AYABEFactory,OMRONCorp.
Placeofmanufacture:
Kyoto600-8530JAPAN
ShiokojiHorikawa,Shimogyo-ku,
OMRONCorporation
21CFR1040.10and1040.11.
ThislaserProductcomplieswith
Manufacturedin
AYABEFactory,OMRONCorp.
Placeofmanufacture:
Kyoto600-8530JAPAN
ShiokojiHorikawa,Shimogyo-ku,
OMRONCorporation
21CFR1040.10and1040.11.
ThislaserProductcomplieswith