Omron E3X-NL - User manual

E3X-NL
A-197E3X-NL
Optical Fiber Glossy Object Sensor
E3X-NL
Utilization lightwave technology has inno-
vated glossiness detection. OMRON's
glossy object sensor can discriminate a
wide variety of glossiness differences. The
fiber-optic system has achieved the small,
non-contact models.
Features
Employs OMRON's unique FAO (Free Angle Optics)
technology which enables delicate sensing of object
glossiness without influence from colors and patterns.
Transparent films on boxes and labels on transparent films
can be detected.
The teaching system ensures easy adjust-
ment just by pressing the button.
Two different types of fiber heads meet a wide range
of applications.
Two different fiber heads are available.
According to applications, you can choose the short-distance,
small spot type ideal for detection of small objects or the long-
distance type that can perform in-line standard detection.
Adopts the pulse-ON system that is insensi-
tive to disturbance light
The emitter (red LED) in the fiber head uses a pulse-ON
system to minimize the influence of disturbance light. The
Sensor provides stable sensing characteristics if disturbance
light occurs from fluorescent lamps in-line.
●Adjustment man-hour saving
type requiring only a one-time
pressing of the button
●Teaching system only re-
quires to push the button, en-
suring sensitivity adjustment
without individual differences.
Long-rangeShort-range small spot
Short-distance, small spot type Long-distance type
Ideal for precision detection
and small object detection.
E32-S15L-1/-2
Resistant to object shake and
enables in-line standard detec-
tion.
20 ±7 mm
E32-S15-1/-2
10 ±3 mm
Small spot in 2 mm dia.
Amplifier Units
E3X-NL11

A-198 Standard Photoelectric Sensors
Application
Short-distance, small spot type
Long-distance type
Features
Principles for Glossiness Detection by FAO
First, the light from a red LED passes through a polarizing fil-
ter so only the S wave is emitted.
If the detectable object is glossy, the S wave is reflected reg-
ularly and is transmitted as is to the Fiber Receiver 1.
If the detectable object is not glossy, there is more diffuse re-
flection, thus the polarization direction is randomized and a P
wave is generated.
The S and P waves are divided by the FAO (special polarized
beam splitter), the waves travel to their respective fiber receiv-
ers, and the variation in the glossiness is determined by com-
paring the two received signals.
Fuzzy Teaching Function Backs up Stable Detection
Supported by the fuzzy teaching function if objects have no
difference in glossiness. If the glossiness difference goes be-
low than the minimum sensing lev-
el, the microprocessor in the
amplifier determines the discrimi-
nation means automatically.
Sensed by light energy difference
like an ordinary mark sensor.
(When 2-point teaching is selected)
Measures against Double Refraction
There are transparent films and transparent plastic objects that
change the direction of polarized light when it passes through
the transparent films and transparent plastic objects. This is
called double refraction. Using the optional rotary mounting
bracket (E39-L109), the sensor unit can be inclined 45 degrees
to take measures against double refraction.
(Example) Metal cylindrical object coated with transparent film
Detection of tacked labels Detection of grease or adhesive on parts Detection of pipe, can or similar joints
Detection of on-bottle labels insensitive to
distance variation or object inclination, en-
abling label detection on conveyor line.
Detection of shrink tubes Transparent shrink
tubes can be detected stable.
Detection of sealing tape
Received fiber 1
(S wave only)
Received fiber 2
(P wave only)
Polarized filter
FAO
Emission S wave only
Sensing
object
EmitterLens
S wave: vertical
P wave: parallel
Metal cylindrical
object coated with
transparent film
Sensing head
The object can be sensed smoothly when
the angle of the sensing head is either 0
˚ or 45 ˚ .
45
˚
Difference in
grossiness
Distinction means
Output
Difference in
light energy

A-199E3X-NL
E3X-NL
Ordering Information
Sensors
Amplifier Units
Fiber Units
Accessories (Order Separately)
Mounting Brackets
Covers
Connection
method Shape Model
Pre-wired type E3X-NL11
Sensor type Shape Sensing distance Fiber length Model
Reflective model
0.5 m E32-S15-1
1 m E32-S15-2
0.5 m E32-S15L-1
1 m E32-S15L-2
Shape Model Quantity Remarks
E39-L109 1
Can be used with the fiber unit
E32-S15-
# . Mounting bracket vari-
able in rotary angle (0°, 45°) for sta-
ble detection of transparent films
(double-refractive objects) on
glossy objects such as metal or
glass plates.
Shape Model Quantity Remarks
E39-G9 1
Attached to the amplifier unit
E3X-NL11. Please place an
order when the protective cover
is damaged or lost.
32.2
33
59
Red li
g
ht
10 ±3 mm
20 ±7 mm

A-200 Standard Photoelectric Sensors
Rating/Performance
Amplifier Units
* The OFF-delay timer can be reset by setting the switch.
Fiber Units
Item Model E3X-NL11
Light source (wave length) Red LED (680 nm)
Power supply voltage 12 to 24 VDC ±10%, ripple (p-p) : 10% max.
Current consumption 100 mA max.
Control output Load supply voltage 30 VDC max., load current 100 mA max. (residual voltage 1 V max.)
Open collector output type (NPN output) Light-ON/Dark-ON switch selectable
Answer-back output Load power supply voltage 30 VDC max., load current 100 mA max. (residual voltage 1 V max.)
Open collector output type (NPN output)
Remote teaching input
Purple and blue (0 V) are connected when remote input turns ON: 0 V short-circuit current 1 mA max. Purple
and blue (0 V) are disconnected when remote input turns OFF: Open or 9 V min. (max. input voltage 24 V).
Note that the input is valid only when remote RUN/TEACH selection input (across pink-blue) is provided.
Protective circuits Protection from load short-circuit and reversed power supply connection
Response time Operation or reset: 1 ms max.
Sensitivity adjustment Teaching system
Timer function * OFF-delay fixed at 40 ms
Ambient illuminance Incandescent lamp: 3,000 lux max. Sunlight 10,000 lux max.
Ambient temperature Operating: -25°C to 55°C, Storage: -40°C to 70°C (with no icing or condensation)
Ambient humidity Operating: 35% to 85% RH, Storage: 35% to 95% RH (with no icing or 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 or 300 m/s2(approx. 30G) for 2 hrs each in X, Y, and Z directions
Shock resistance Destruction: 500 m/s2for 3 times each in X, Y, and Z directions
Protective structure IEC 60529 IP50 (with Protective Cover attached)
Connection method Pre-wired models (standard length: 2 m)
Weight (Packed state) Approx. 200 g
Mate-
rial
Case PBT (polybutylene terephthalate)
Cover Polycarbonate
Mounting Brackets Stainless steel (SUS304)
Accessories Mounting bracket, instruction manual
Sensing method Reflective model
Features Short-range small spot Long-range
Item Model E32-S15-1 E32-S15-2 E32-S15L-1 E32-S15L-2
Sensing distance 10±3 mm (white paper, white glossy plastic
40x20 mm)
20±7 mm (white paper, white glossy plastic
40x20 mm)
Min. sensing object 0.5-mm 2-mm
Sensing object angle
Glossiness determination is possible at 4°
inclination from the mounting hole (at sensing
distance of 10 mm)
Glossiness determination is possible at 7°
inclination from the mounting hole (at sensing
distance of 20 mm)
Spot diameter Approx. 2-mm dia./approx. 2-mm dia. (at sensing
distance of 10 mm)
Approx. 15-mm dia./approx. 4-mm dia. (at sens-
ing distance of 20 mm)
Ambient temperature Operating: -25°C to 55°C, Storage: -40°C to 70°C (with no icing or condensation)
Ambient humidity Operating: 35% to 85%RH, Storage: 35% to 90% RH (with no condensation)
Permissible bending radius 4 mm min.
Protective structure IEC 60529 IP50
Fiber length 500 mm 1 m 500 mm 1 m
Weight (Packed state) Approx. 50 g Approx. 60 g Approx. 80 g Approx. 90 g
Material
Sensor case Heat-resistant ABS resin
Sensor window transparent glass Acrylics
Fiber cladding urethane

A-201E3X-NL
E3X-NL
Characteristic data (typical)
Output Circuit Diagram
NPN output
Glossiness vs. Operating Range (Typical) Glossiness vs. Angle (Typical)
E3X-NL11 with E32-S15-#E3X-NL11 + E32-S15-#(X direction) E3X-NL11 + E32-S15L-#(X direction)
E3X-NL11 with E32-S15L-#E3X-NL11 + E32-S15-#(Y direction) E3X-NL11 + E32-S15L-#(Y direction)
Model Output transis-
tor Status Timing chart Mode selec- tion switch Output circuit
E3X-NL11
Light ON L ON
Dark ON D ON
140
120
100
80
60
40
20
Set distance (mm)
0 5 10 15 20 25
White drawing paper
White glossy plastic
Sensing object: 40 x20 mm
Set distance
Relative glossiness (%)
140
120
100
80
60
40
20
0
Angle (˚)
-10 -50 510
10mm
Relative glossiness (%)
White drawing paper
White glossy plastic
Sensing object:
40 ¥20 mm -
+140
120
100
80
60
40
20
0
Angle (˚)
-10 -50 510
20mm
Relative glossiness (%)
White drawing paper
White glossy plastic
Sensing object:
40 ¥20 mm -
+
140
120
100
80
60
40
20
Set distance (mm)
010203040
Set distance
Relative glossiness (%)
White drawing paper
White glossy plastic
Sensing object: 40 ¥20 mm 140
120
100
80
60
40
20
0
Angle (˚)
-15 -10 -50 51015
10mm
Relative glossiness (%)
White drawing paper
White glossy plastic
Sensing object:
40 ¥20 mm
-
+140
120
100
80
60
40
20
0
Angle (˚)
-15 -10 -50 51015
20mm
Relative glossiness (%)
White drawing paper
White glossy plastic
Sensing object:
40 ¥20 mm
-
+
Light
indicator
(orange)
Output
transistor
Load
(e.g., relay)
Incident
Interrupted
ON
OFF
ON
OFF
Operate
Reset (Between brown and
black terminals)
T: OFF delay timer
The change for 0 or 40ms (fixed) is possible.
T
Stability
indicator
(green)
Operation
indicator
(orange)
Teaching
indicator
(red/green)
Main
circuit
12 to 24
VDC
Remote
RUN/TEACH
input Remote
teaching
input
Answer-back output
Control output
Brown
Black
Orange
Blue
Pink
Purple
Load
Load
Light
indicator
(orange)
Output
transistor
Load
(e.g., relay)
Incident
Interrupted
ON
OFF
ON
OFF
Operate
Reset
(Between brown and
black terminals)
T: OFF delay timer
The change for 0 or 40ms (fixed) is possible.
T
Light
indicator
(orange)
Output
transistor
Load
(e.g., relay)
Incident
Interrupted
ON
OFF
ON
OFF
Operate
Reset
(Between brown and
black terminals)
T: OFF delay timer
The change for 0 or 40ms (fixed) is possible.
T