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Distance setting photoelectric sensor in metal housing
E3S-CL
• High water, oil and detergent resistance
• Minimal black/white error for highest
reliability detecting different colored
objects (E3S-CL1)
Features
E3S-CL
Eliminates Background Influences with a
Hysteresis of Only 2% max. (E3S-CL1)
The hysteresis is the industry's minimum 2% max. (E3S-CL1).
As a triangulation measuring is used, objects behind the setting distance cannot be detected. The sensor is insensitive to
the influence of background objects of high reflectivity, and
stable detects works on a conveyor from above. The hysteresis of the E3S-CL2 is 10% max. of the detecting distance (5%
max. for white paper).
What Is Distance Setting?
(Differences from other detecting system)
Distance-setting
When the sensing object moves in direction A, the center position
of the reflected light moves in direction B. This is received by the
Fea-
tures
Struc-
Diffuse-reflective
Fea-
tures
Struc-
2-split photodiode and the place where the incident levels are the
same on the N and F sides is defined as the setting distance.
The object is detected by the incident circuit processing only when
N F, and is not detected when N F. Therefore, detection is stable
without being influenced by the work type and background objects.
Received element
(Two division photodiode)
N
B
F
A setting
distance
ture
ture
variable
Light source
LED
Detecting range
Since the level of the reflected light is judged for detection , the
sensing distance varies with the color, material and/or size of the
work.
A malfunction may occur if there is any object of high reflectivity in
the background.
Received
element
Light source
LED
Setting range
Detecting area
N: Near
F: Far
A
Detecting range
A-111E3S-CL
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6-turn adjuster with indicator
By t
tti
j
• The 6-turn adjuster with indicator ensures ease
of distance setting.
• Fine distance setting is possible.
Optical Technology of E3S-CL
urning the distance se
uster (worm gear), the rotation of the
gear moves the cam to change the
incident angle of the whole incident
block (lens and photodiode), setting
the distance.
Stability indicator (green)
Operation indicator (orange)
Two division photodiode
• NPN/PNP Output Selectable.
• Light-ON/Dark-ON is also switch selectable.
ng ad-
Cam
Receiver lens
Emitter lens
Operation unit cover
Setting distance indicator
Setting distance
adjuster (worm gear)
Light source LED
Conforms to Applicable EN/IEC Standards
• The sensors satisfy the electrical
safety (IEC947-5-2), noise resistance (IEC947-5-2, IEC801-2/3/
4) and noise radiation restrictions
(EN500 81-2, EN55011) required
for photoelectric sensors.
E3S-CL1
Detecting Milk Cartons
A stainless background
Stable detection is not
affected by stainless steel
background or carton colors.
E3S-CL2
Detecting Boxes
E3S-CL1
Application
Detecting Food Products on Conveyors
Objects can also be detected from above
a conveyor.
Detecting Construction Materials (Boards)
maining on a Pallet
E3S-CL2
E3S-CL1
Detecting Wafer Cassettes
E3S-CL1
Easy distance setting with 6-turn adjustment
and indicator.
Detecting Tires on a Conveyor Line
E3S-CL2
<m
E3S-CL2
Stable detecting boxes regardless of box position.
A-112 Standard Photoelectric Sensors
Construction materials can be
detected from above.
Stable detecting black objects such as tires.
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Ordering Information
Shape Sensing/Setting range Model
5 40mm
Min. setting
Max. setting
Detecting range
5 to 200 mm
Setting range
40 to 200 mm
Red light Infrared light
200mm5
E3S-CL1
E3S-CL
5 50mm
Min. setting
Max. setting
Detecting range
5 to 500 mm
Setting range
50 to 500 mm
E3S-CL2
500mm5
Rating/performance
Sensing method Distance-setting
Item Model E3S-CL1 E3S-CL2
Sensing
5 to 200 mm (White paper 200 x 200 mm)
(Setting distance 200 mm)
Setting range 40 to 200 mm (White paper 200 x 200 mm) 50 to 500 mm (White paper 200 x 200 mm)
Differential distance 2% max. 10% max.
Reflectivity characteristics
(black/white error)
2% max. 10% max.
*1
Light source (wave length) Red LED (700 nm) Infrared LED (860 nm)
Power supply voltage 10 to 30 VDC [ripple (p-p) 10% included]
Current consumption 35 mA max. 50 mA max.
Load supply voltage 30 VDC max., load current 100 mA max. (residual voltage NPN output: 1.2 V max.,
Control output
PNP output: 2.0 V max.) Open collector output type (NPN/PNP switch selectable) Light-ON/Dark-ON
switch selectable
Protective circuits Reverse polarity protection, output short-circuit protection, mutual interference prevention
Response time Operation or reset: 1 ms max. Operation or reset: 2 ms max.
Distance setting 6-turn endless adjuster (with indicator)
Ambient illuminance Incandescent lamp: 5,000 lux max. Sunlight 10,000 lux max.
Ambient temperature Operating/Storage: -25°C to 55°C (with no icing or condensation)
Ambient humidity Operating/Storage: 35% to 85%RH (with no condensation)
Insulation resistance 20 M min. at 500 VDC
Dielectric strength 1,000 VAC at 50/60 Hz for 1 minute
Vibration resistance 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance Destruction: 500 m/s2 for 3 times each in X, Y, and Z directions
Protective structure
IEC Standard IP67, NEMA 6P (limited to indoor use)
*2
Connection method Pre-wired models (standard length: 2 m)
Weight (Packed state) Approx. 170 g
Case Zinc diecast
Operation panel
Ma-
cover
terial
Lens Acrylics
Polyethyl sulfon
Mounting Brackets Stainless steel (SUS304)
Accessories
*1. Sensing distance difference between standard white paper (reflectivity 90%) and standard black paper (reflectivity 5%)
*2. NEMA (National Electrical Manufacturers Association) Standards
Mounting bracket, hexagon bolt M4 x 12 (with spring washer, flat washer), adjusting screwdriver, instruction
manual
5 to 500 mm (White paper 200 x 200 mm)
(Setting distance 500 mm)
IEC Standard IP67, NEMA 6P (limited to indoor use)
A-113E3S-CL
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Characteristic data (typical)
Spot Diameter vs. Sensing Distance
E3S-CL1 E3S-CL2
25
100
20
15
Spot diameter(mm)
10
5
0 50 100 150 200 250
80
Spot diameter(mm)
60
40
20
0 100 200 300 400 500
Distance (mm)
Short distance characteristic
E3S-CL1 E3S-CL2
Sensitivity adjuster
200
150
Sensing distance(mm)
100
50
2.7mm 1.4mm
0
33.7mm
White paper Black paper
23.7mm
: Max
Sensitivity adjuster
: Min
32.7mm
11.4mm
Material
500
400
300
Sensing distance(mm)
200
100
0.7mm
0
Distance (mm)
Sensitivity adjuster
: Max.
Sensitivity adjuster
: Min.
36mm
0.4mm 6.2mm 2.6mm
White paper Black paper
33mm
Material
A-114 Standard Photoelectric Sensors
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Output Circuit Diagram
NPN output
Model
E3S-CL1
E3S-CL2
PNP output
Model
E3S-CL1
E3S-CL2
Operating status of
output transistor
Light ON
Dark ON
Operating status of
output transistor
Light ON
Dark ON
Interrupted
Operation
indicator
(orange)
Output
transistor
Load
(Relay)
Interrupted
Operation
indicator
(orange)
Output
transistor
Load
(Relay)
Interrupted
Operation
indicator
(orange)
Output
transistor
Load
(Relay)
Interrupted
Operation
indicator
(orange)
Output
transistor
Load
(Relay)
Timing chart
Incident
ON
OFF
ON
OFF
Operate
Reset
Incident
ON
OFF
ON
OFF
Operate
Reset
Timing chart
Incident
ON
OFF
ON
OFF
Operate
Reset
Incident
ON
OFF
ON
OFF
Operate
Reset
Mode selection switch
LON
(LIGHT ON)
DON
(DARK ON)
Mode selection switch
LON
(LIGHT ON)
DON
(DARK ON)
Output circuit
Operation
indicator
(Orange) (Green)
Stability
indicator
Main
circuit
* Please make a changeover switch into the NPN side.
PNP
output transistor
NPN and PNP
output selector
NPN
output transistor
Output circuit
Operation
indicator
(Orange) (Green)
Stability
indicator
Main
circuit
* Please make a changeover switch into the PNP side.
PNP
output transistor
NPN and PNP
output selector
NPN output
transistor
10 to 30 VDC
Brown
ZD
*
ZD
ZD
*
ZD
Black
Blue
Brown
Black
Blue
Load
Load current
Control output
10 to 30 VDC
Load current
Load
Control output
0V
0V
E3S-CL
Nomenclature:
Operation panel
Stability
indicator (green)
Output selector
Mode selector
Operation unit cover
Operation indicator (orange)
Setting distance indicator
Setting distance adjuster
Output selection switch
A When using the sensor with NPN output, move the switch
to the position.
NPN
B When using the sensor with PNP output, move the switch
to the position.
PNP
Mode selection switch
A When using the sensor with Light-ON, move the switch to
the position.
B When using the sensor with Dark-ON, move the switch to
the position.
Distance Adjuster
A Turning the distance setting adjuster clockwise (to the Max
position) increases the detecting distance, and turning it
counterclockwise (to the Min position) decreases the dis-
tance.
B The distance setting adjuster is a 6-turn endless adjuster
ranging from the Min position to the Max position, and its
number of turns is displayed on the setting distance indi-
cator according to the rotation of the adjuster.
A-115E3S-CL
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Operation
c
Sensitivity adjustment (distance setting type, Light-ON)
Sequence Detection state
Position of distance setting adjuster
State of setting distance indicator
Indicator state Adjustment Steps
(1) Point (A)
(2) Points (B),
(C)
(3) Setting
Photoelectric
Sensor
Photoelectric
Sensor
Sensing
object
Sensing
object
---
ackground obje
Background objec
(A)
Min Max
(B)
Min Max
(A)
Min Max
(A)
(C)
(C)
(C)
(B)
(A)
(C)
Precautions
Correct Use
Design
Cable
The oil-resistant cable is used to ensure oil resistance.
(E3S-CL2)
ONÆOFF OFFÆON
1
3
3
5
1
3
5
Stability indicator
(green)
ONÆOFF ONÆOFF
Stability indicator
(green)
Stability indicator
(green)
Operation indicator
(orange)
Operation indicator
(orange)
ON ON´ OFF
Operation indicator
(orange)
Place a sensing object in the predetermined
position, turn the adjuster clockwise until the
incident indicator (orange) is turned ON, and
define this position as (A).
(1) If there is a background object, remove the
sensing object, turn the adjuster further
clockwise until the incident indicator (orange) is turned ON, and define this position as (B). Turn the adjuster counterclockwise from (B) until the incident indicator
(orange) is turned OFF, and define this position as (C).
(2) If there is no background object, define the
maximum adjuster position (Max) as (C).
Set the adjuster in the middle of positions (A)
and (C). Also make sure that the stability indicator (green) is turned ON when there is an
object and when there is no object. When the
indicator is not turned ON, reexamine the detection method since there is a little allowance.
• Install the photoelectric sensor in either of the following orientations, being careful of the direction in which the sensing
object will move.
Installation
Sensor installation
Mounting orientation
• Install the photoelectric sensor in
such manner that its detection
surface and the object surface
are parallel (without inclination
Sensing surface
relative to the sensing object).
Sensing object surface
If the sensing object has a
glossy surface, incline the Sensor by 5° to 10° as shown on the
right. In this case, ensure that
the Sensor is not influenced by
Glossy object
any background objects.
• If there is a mirror-smooth object under the photoelectric
sensor, operation may become instable. Therefore, incline
the photoelectric sensor as shown below or move it away
from the object.
Sensing object
Mirror-like object
Sensing object
Movement direction
Sensing object
Movement direction
Sensing object
Movement direction
• Also, when the color/material of the sensing object varies
extremely, install the photoelectric sensor in either of the
following orientations.
Movement direction
Movement direction
• Install the photoelectric sensor so that the sun, fluorescent
lamp, incandescent lamp or any other strong light will not
enter the directional angle range of the sensor.
Mounting Precautions
• Do not strike the Photoelectric Sensor with a hammer or
any other tool during the installation of the Sensor, or the
Sensor will loose its water-resistive properties.
• Use M4 screws.
• Tighten the screws to the torque of 1.2 Nm max.
A-116 Standard Photoelectric Sensors
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Others
Oil resistance/chemical resistance (E3S-CL2)
For the oil resistance ofE3S-CL2, the Sensor has passed
tests on the oils given in the following table. Refer to the table
for examining the oil to be used. Depending on the oil type,
however, the Sensor may not be able to exhibit its performance.
Dimensions (Unit: mm)
E3S-CL1
E3S-CL2
Testing
oil clas-
JIS classisification
Lubricant
Water-insoluble
coolant
Watersoluble
coolant
Note: 1 .E3S-C was submerged in the oils in the above table at 50°C for 240
fication
--- Velocity No. 3 2.02
Class 2
No. 5
Class 2
No. 11
Class W1
No. 1
Class W1
No. 2
Class W2
No. 1
hours, and passed the test of 100-M or more insulation resistance.
2 .For use in the environment where E3S-C is exposed to the oil other
than those in the above table, use the dynamic viscosity and PH in the
above table. Pre-check the oils since the sensor may be affected by
additives etc. in the oils.
Product name
Daphne Cut
Yushiron Oil No. 2ac Less than 10
Yushiroken EC50T-3
Yushiron Lubic HWC68 7`9.9
Gryton 1700D 7`9.2
Yushiroken S50N 7`9.8
Dynamic vis-
cosity (mm
10 to less than
2
/s)
at 40°C
Not less than
50
---
PH
---
7`9.5
E3S-CL
2-M4
Slotted hexagonal bolt
16
54.5
28
23.8
7.3
11.7
Stainless steel
4.2
20
Mounting holes
25.4
2-M4
E3S-CL1: Vinyl-insulated round cable of 4 dia.
3 cores conductor cross-sectional area:
0.2 mm
Standard length: 2 m
E3S-CL2: Vinyl-insulated round cable of 4 dia.
3 cores conductor cross-sectional area:
0.2 mm
Standard length: 2 m
²
; insulation diameter: 1.1 mm
²
; insulation diameter: 1.1 mm
37.2
6.2
4.2
40
44.7
40
21
With Mounting Bracket Attached
Receiver
15.4
16.1
2
Sensing optical axis
Emitter and optical
axis position
16.5
42.6
9.1
19.7
Operation indicator
Stability indicator
1.1
9.2
12
Note: The output selector, mode selector and distance setting adjuster are exposed when the cover is opened.
2-M4
A-117E3S-CL
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ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. E237-E2-02A-X
In the interest of product improvement, specifications are subject to change without notice.
A-118 Standard Photoelectric Sensors
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