Omron E3G-L1 User manual

1
Distance-setting Photoelectric Sensor E3G-L1/L3
The Combination of the Hyper LED and
Shine-proof Achieves both Ease-of-use
andHighPerformance
Hyper LED mounted. Finest pin-point beam in the
industry allows detection of minute objects.
Shine-proof optical system achieves stable detection
of objects regardless of glossiness, color, material,
surface irregularities, or inclination.
4% or less black/white error:(E3G-L1),
4% or less differential travel:(E3G-L1)
Simpleteachingofbackgroundorsurfaceofconveyor.
Double-bar display indicates excess gain at a glance.
A line-up of M8 connector which ensures easy
maintenance.
Meets IEC IP67 requirements, thus resisting water.
Ordering Information
Sensors Red light Infrared light
A
p
p
e
a
r
a
n
c
e
Connection Sensin
g
/
O
p
e
r
a
t
i
n
g
m
o
d
e
Model
Appearance
C
o
n
n
e
c
t
i
o
n
method
S
e
n
s
i
n
g
/
Setting range Operating mode NPN output PNP output
Pre-wired Setting range:
3
0
t
o
5
0
m
m
M
a
x
s
e
t
t
i
n
g
Min. setting
5mm 30 mm 50 mm
20 mm E3G-L11 E3G-L12
Connector Sensing range:
5to50mm
g
g
30 to 50 mm
M
a
x
. setting
Light-ON
D
a
r
k
O
N
E3G-L15 E3G-L16
Pre-wired Setting range:
White paper 50 to 200 mm
Min. setting
5mm 50 mm 200 mm
M
a
x
s
e
t
t
i
n
g
30 mm Dark-ON
(selectable) E3G-L31 E3G-L32
Connector Sensing range:
White paper 5 to 200 mm
M
a
x
. setting
E3G-L35 E3G-L36

E3G-L1/L3 E3G-L1/L3
2
Accessories (Order Separately)
Mounting Brackets
Shape Model Minimum order Remarks
E39-L139 1Provided with E3G-Lj1/-Lj2
E39-L140 1Provided with E3G-Lj5/-Lj6
Sensor I/O Connectors
Item Shape Cable type Remarks
S
t
i
h
t
2m
X
S3F-M421-402-R
Vibration-
p
roo
f
Straight 5m
F
o
u
r
w
i
r
e
t
y
p
e
X
S3F-M421-405-R
V
i
b
r
a
t
i
o
n
p
r
o
o
f
robot cable
L
h
d
2m Four-wire type
X
S3F-M422-402-R
L-shaped 5m
X
S3F-M422-405-R
Note: Refer to the Sensor I/O Connectors Catalog (X065) for details.

E3G-L1/L3 E3G-L1/L3
3
Specifications
Ratings/Characteristics
Sensing method Distance-setting
Model NPN output E3G-L11 E3G-L15 E3G-L31 E3G-L35
Item PNP output E3G-L12 E3G-L16 E3G-L32 E3G-L36
Setting range 30 to 50 mm
(white paper, black paper: 50 x 50 mm) 50 to 200 mm (white paper 50 x 50 mm) 50 to 150 mm (black paper 50 x 50 mm)
Sensing range 5 to 50 mm (white paper 50 x 50 mm,
setting distance 50 mm)
5 to 200 mm (white paper 50 x 50 mm,
setting distance 200 mm)
5 to 150 mm (black paper 50 x 50 mm,
setting distance 150 mm)
Differential travel 4% max. of sensing distance 10% of sensing distance (typical)
Reflectivity characteristics
(black/white error) 4% max. of sensing distance 10% max. of sensing distance (at 50 to 150-mm setting distance)
Light source (wavelength) Red LED (670 nm) Infrared LED (860 nm)
Spot size 1 mm dia. max. (at 38-mm sensing distance) 15 mm dia. max. (at 150 mm sensing distance)
Power supply voltage 10 to 30 VDC including 10% (p-p) ripple
Current consumption 55 mA max. 65 mA max.
Control output
Load power supply voltage: 30 VDC max. Load current 100 mA max.
Residual voltage: NPN output: 1.2 V max. PNP output: 2.0 V max.
Open collector output (NPN/PNP, differs depending on models)
Light ON/Dark ON selectable
Circuit protection Protection from reversed power supply connection, load short-circuit, and mutual interference
Response time Operation or reset: 1.5 ms max. Operation or reset: 2.5 ms max.
Distance setting Teaching (in NORMAL or ZONE mode)
Fine distance adjustment Manual fine threshold adjustment (NORMAL mode: 13 levels/ZONE mode: 5 levels)
Indicator Operation indicator (orange LED), distance indicator (green LED: 8 levels),
threshold indicator (red LED, NORMAL mode: 13 levels/ZONE mode: 5 levels)
Ambient illumination
(receiver side) Incandescent lamp: 3,000 ℓx max./Sunlight: 10,000 ℓxmax.
Ambient temperature Operating: -25_Cto55_C/Storage: -30_Cto70_C (with no icing or condensation)
Ambient humidity Operating: 35% to 85%/Storage: 35% to 95% (with no condensation)
Insulation resistance 20 Mτmin. at 500 VDC
Dielectric strength 1,000 VAC 50/60Hz 1 min.
Vibration resistance Destruction: 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y, and Z direction
Shock resistance Destruction: 500m/s23 times each in X, Y, and Z direction
Degree of protection IEC60529 IP67 (with protective cover)
Connection method Pre-wired
(standard length: 2 m) M8 connector Pre-wired (standard length: 2 m) M8 connector
Weight (packed state) Approx. 64 g Approx. 21 g Approx. 64 g Approx. 21 g
Case PBT (polybutylene terephthalate)
Material Lens Acrylic (PMMA)
Mounting bracket Stainless steel (SUS304)
Accessories Mounting bracket (with screws) and instruction sheet

XS3F-M421-402-R
XS3F-M421-405-R
XS3F-M422-402-R
XS3F-M422-405-R
E3G-L1/L3 E3G-L1/L3
4
Operation
Output Circuits
Output
configuration NPN PNP
Model E3G-L11
E3G-L15
E3G-L31
E3G-L35
E3G-L12
E3G-L16
E3G-L32
E3G-L36
Output
transistor status Light ON Dark ON Light ON Dark ON
Timing chart
Operate
Reset
(Between brown and black)
Incident
Interrupted
Operation
indicator
(orange)
Output
transistor
Load
(relay)
ON
OFF
ON
OFF
ON
OFF
Operate
Reset
(Between brown and black)
ON
OFF
Incident
Interrupted
Operation
indicator
(orange)
Output
transistor
Load
(relay)
ON
OFF
ON
OFF
Operate
Reset
(Between blue and black)
Incident
Interrupted
Operation
indicator
(orange)
Output
transistor
Load
(relay)
ON
OFF
ON
OFF
ON
OFF
Operate
Reset
(Between blue and black)
ON
OFF
Incident
Interrupted
Operation
indicator
(orange)
Output
transistor
Load
(relay)
ON
OFF
ON
OFF
Mode selector L/ON (Light ON) D/ON (Dark ON) L/ON (Light ON) D/ON (Dark ON)
Output circuit 8-level
distance
indicator
(green)
13-level
threshold
indicator
(red)
8-level
distance
indicator
(green)
13-level
threshold
indicator
(red)
Structure of Sensor I/O Connector
Classification Wire color Connector
pin No. Use
Brown 1 Power supply
(+ V)
D
C
White 2
D
C
Blue 3Power supply
(0 V)
Black 4Output
Note: 1. Pin 2 is not used.
2. For details, refer to the Sensor I/O Connectors Catalog
(X065).

E3G-L1/L3 E3G-L1/L3
5
Engineering Data (Typical)
Distance X (mm)
Operating position Y (mm)

2.5
2.0
1.5
1.0
0.5
0
-- 0 .5
-- 1 .0
-- 1 .5
-- 2 .0
-- 2 .5
55
30 35 40 45 5025
Setting distance: 30 mm,
40 mm,
50 mm
30 mm
40 mm
50 mm
Spot diameter (mm)
3
2.5
2
1.5
1
0.5
0Distance (mm)
30 35 40 45 50
Distance X (mm)
Operating position Y (mm)
3
2
1
0
-- 1
-- 2
-- 3
10 20 30 40 50 60
Settingdistance: 30mm,40mm,50mm
Sensingobject: Whitepaper50×50mm
40 mm
30 mm
50 mm
X
Y
E3G-L1j(inNORMALMode) E3G-L1j(in ZONE Mode) E3G-L1j
Operating Range Spot Diameter
v
s.
Sensing Distance

14
12
10
8
6
4
2
0
40 60 80 100 120 140 160 180 200
Distance X (mm)

4
3
2
1
0
-- 1
-- 2
-- 3
-- 4
250
50 100 150 200
Setting distance:50 mm, 100 mm, 200 mm
50 mm
100 mm
200 mm
Distance X (mm)
Operating position
Y
(mm)

5
4
3
2
1
0
-- 1
-- 2
-- 3
-- 4
-- 5
50 100 150 200
Settingdistance: 50mm,100mm,200mm
Sensingobject: Whitepaper50×50mm
X
Y
100 mm
200 mm
50 mm
Spot diameter (mm)
Distance (mm)
E3G-L3j
E3G-L3j
(
in ZONE Mode
)
E3G-L3j
(
in NORMAL Mode
)
Operating position Y (mm)
0.5
0.4
0.3
0.2
0.1
0
30 35 40 45 50
5
4
3
2
1
0
-- 1
-- 2
-- 3
-- 4
-- 5--40 --30 --20 --10 0 10 20 30 40

(Left and Right)
Sensing object: White paper 50 ×50 mm
Sensing distance:30 mm
5
4
3
2
1
0
-- 1
-- 2
-- 3
-- 4
-- 5 -- 40 --30 --20 --10 0 10 20 30 40
Sensing distance variation (%)
Sensing object: White paper 50 ×50 mm
Sensing distance:30 mm
Sensing object
Inclination
angle
Sensing distance variation (%)
Inclination angle °()
Sensing object
Sensing object: White paper
Setting distance: 50 mm
Distance (mm)
+°
–°
+°
–°
Inclination
angle
E3G-L1j(Up and Down) E3G-L1j(Left and Right)
Inclination angle °()
E3G-L1j
A
ngle Characteristics Sensing Object Size
v
s.
Setting Distance
(Up and Down)
Min. sensing object dia. (mm)
2.5
2
1.5
1
0.5
0
40 60 80 100 120 140 160 180 200
5
4
3
2
1
0
-- 1
-- 2
-- 3
-- 4
-- 5
--40 --30 --20 --10 0 10 20 30 40

5
4
3
2
1
0
-- 1
-- 2
-- 3
-- 4
-- 5-- 4 0 -- 30 -- 2 0 -- 1 0 010203040
Inclination angle °()
Sensing distance variation (%)
(Left and Right)
Sensing object: White paper 50 ×50 mm
Sensing distance:50 mm
Sensing object
Inclination angle °()
Sensing object: White paper
Setting distance: 200 mm
Distance (mm)
+°
–°
Inclination
angle
E3G-L1j(Up and Down) E3G-L1j(Left and Right)
Sensing distance variation (%)
E3G-L3j
Sensing object: White paper 50 ×50 mm
Sensing distance:50 mm
(Up and Down)
Inclination
angle
+°
–°
Sensing object
Min. sensing object dia. (mm)

E3G-L1/L3 E3G-L1/L3
6
Sensing distance variation (%)
10
8
6
4
2
0
-- 2
-- 4
-- 6
-- 8
-- 1 0
--40 --30 --20 --10 0 10 20 30 40
Sensing object: White paper 50 ×50 mm
Sensing distance:50 mm
Sensing object
10
8
6
4
2
0
-- 2
-- 4
-- 6
-- 8
-- 1 0
-- 4 0 -- 3 0 -- 2 0 -- 10 0 1 0 2 0 40 White paper
60
50
40
30
20
10
0
Material
Setting distance:30 mm
Sensing distance (mm)
18 mm
31 mm 30 mm
20 mm
1mm
50 mm
16 mm
51 mm
30
Sensing distance variation (%)
Inclination angle °()Inclination angle °()
Sensing object: White paper 50 ×50 mm
Sensing distance:50 mm
(Up and Down)
Sensing object
Inclination
angle
(Left and Right)
+°
–°
+°
–°
White paper Black paper Black paper
Setting distance:50 mm
E3G-L3j(Up and Down) E3G-L3j(Left and Right) E3G-L1j
A
ngle Characteristics Close-range Characteristics
Inclination
angle
10
8
6
4
2
0
-- 2
-- 4
-- 6
-- 8
-- 1 0
--40 --30 --20 --10 0 10 20 30 40
10
8
6
4
2
0
-- 2
-- 4
-- 6
-- 8
-- 1 0
--40 --30 --20 --10 0 10 20 30 40
150
100
50
0
51 mm 48.5 mm
202 mm
178 mm
29 mm 20 mm
0mm
28.5 mm
Sensing distance variation (%)
Sensing distance variation (%)
Inclination angle °()Inclination angle °()
Sensing object: White paper 50 ×50 mm
Sensing distance:150 mm Sensing object: White paper 50 ×50 mm Sensing distance:150 mm 250
200
Sensing object
Sensing object
+°
–°
(Up and Down)
Inclination
angle
White paper Material
Sensing distance (mm)
White paper Black paper Black paper
Setting distance:50 mm
Setting distance:200 mm
E3G-L3j(Up and Down) E3G-L3j(Left and Right) E3G-L3j
(Left and Right)
Inclination
angle
+°
–°
35
30
25
20
15
10
5
0
45
40
35
30
25
20
15
10
5
0
60
50
40
30
20
10
0
White
paper Material
Sensing distance (mm)
Black
paper Black rubber
FiberboardVeneer Mirror White
paper Black paper Black rubber
FiberboardVeneer Mirror
Sensing distance (mm)
Material
White
paper Black paper Black rubber
FiberboardVeneer Mirror
Sensing distance (mm)
Material
E3G--L1V(at 30--mm Setting Distance) E3G--L1V(at 40--mm Setting Distance) E3G--L1V(at 50--mm Setting Distance)
Sensing Distance
v
s. Sensing Object Material
180
150
120
90
60
30
0
60
50
40
30
20
10
0
120
100
80
60
40
20
0
White
paper Black paper Black rubber
FiberboardVeneer Mirror
Sensing distance (mm)
Material
White
paper Black paper Black rubber
FiberboardVeneer Mirror
Sensing distance (mm)
Sensing distance (mm)
White
paper Black paper Black rubber
FiberboardVeneer Mirror
Material
E3G-L3j
(
at 50-mm Setting Distance
)
E3G-L3j
(
at 150-mm Setting Distance
)
E3G-L3j
(
at 100-mm Setting Distance
)
Material

E3G-L1/L3 E3G-L1/L3
7
Nomenclature
UP/DOWN selector
Selects the switching direction
at threshold.
Operation indicator (Orange)
ON when output is ON.
Distance indicator (Green)
Display the distance relative to
the threshold.
Threshold indicator (Red)
Indicates threshold level.
For teaching or for threshold adjustment
Operation mode selector
Selects L-ON or D-ON.
NORMAL/ZONE selector
Selects the detection mode.
Mode selector
Selects the mode.

NORM L
ZONE D
ADJ
FAR
SET TEACH
OUT
RUN
SET button
NEAR
Installation
Designing
Do not pull cables with tensile strength exceeding 50 N for the
cable pull-out or connector types.
High-tension Lines
Do not wire power lines or high-tension lines alongside the lines of
the Sensor in the same conduit, otherwise the Sensor may be
damaged or may malfunction due to induction. Be sure to wire the
lines of the Sensor separated from power lines or high-tension
lines or laid in an exclusive, shielded conduit.
Turning the Power ON
The Sensor needs 100 ms to be ready to operate after it is turned
ON. The devices connected to the Photoelectric Sensor must wait
until the Sensor is ready to operate. If the Sensor and load are
connected to separate power supplies, be sure to turn ON the
Sensor first.
Power Supply
If a standard switching regulator is used, be sure to ground the FG
(frame ground) and G (ground) terminals, otherwise the Sensor
may malfunction due to the switching noise of the regulator.
Wiring
Cable
The bending radius of the cable should be 25 mm min.
In a case where the cable is extended, use a wire with 0.3 mm2
min. The total length of the cable should be 100 m max.
Avoiding Malfunctions
If using the photoelectric sensor with an inverter or servomotor, be
sure to ground the FG (frame ground) and G (ground) terminals,
otherwise the Sensor may malfunction.
Mounting
Mounting Conditions
If Sensors are mounted face-to-face, make sure that no optical
axescrosseachother. Otherwise, mutualinterferencemayresult.
Be sure toinstall the Sensor carefully so that the directional angle
range of the Sensor will not be directly exposed to intensive light,
such as sunlight, fluorescent light, or incandescent light.
Do not strike the Photoelectric Sensor with a hammer or any other
toolduringtheinstallationoftheSensor,ortheSensorwilllooseits
water-resistive properties.
Use M3 screws to mount the Sensor.
When mountingthe case, make sure that thetightening torque ap-
plied to each screw does not exceed 0.54 N m.
M8 Connector
Be sure to connect or disconnect the M8 connector after turning
OFF the Sensor.
Be sure to hold the connector cover when connecting or discon-
necting the M8 connector.
Secure the M8 connector by hand. Do not use any pliers, other-
wise the connector may be damaged.
If the M8 connector is not connected securely, the M8 connector
may be disconnected by vibration or the proper degree of protec-
tion of the Sensor may not be maintained.

E3G-L1/L3 E3G-L1/L3
8
Mounting Directions
Make sure that the sensing side of the Sensor is parallel with the
surface of each sensing object. Do not incline the Sensor towards
the sensing object.
Sensing side
Surface of sensing object
If the sensing object has a glossy surface, incline the Sensor by 5
to 10as shown below, provided that the Sensor is not influenced
by any background objects.
Glossy object
If there is a mirror-like object below the Sensor, the Sensor may
not be in stable operation. Therefore, incline the Sensor or keep
the Sensor a distance away from the mirror-like object as shown
below.
Sensing
object
Mirror-like object
Make sure not to install the Sensor in the incorrect direction.
Refer to the following.
Sensing object
Moving direction
Sensing object
Sensing object
Moving
direction
Moving direction
Correct
Incorrect
Install the Sensor as shown in the following if each sensing object
greatly differs in color or material.
Moving direction Moving direction
Correct Incorrect
Adjustments
If the Sensor is not in stable operation due to color differences,
make a fine adjustment of the threshold level and confirm that the
Sensor operates in stable state.
Refer to Manual Teaching (Fine Distance Setting) Page 12

321
E3G-L1/L3 E3G-L1/L3
9
Adjustments
Adjustment Steps
1Install, wire, and turn on the Sensor.
2Perform distance setting (teaching). Refer to Distance Setting (Teaching) below.
3Make a fine adjustment of the threshold, if necessary.
Refer to Manual Teaching (Fine Distance Setting).Page 12
4Check that the mode selector is set to RUN.
Distance Setting (Teaching)
Select the most appropriate teaching method in reference to the following descriptions.
Application Teaching without sensing
objects (i.e., Teaching the
background).


Detection of slight differences in
surface level.
Setting a threshold in the middle
between the background and
sensing object for operation.
Detection of glossy objects in
front of the background.
Teaching 1Normal one-point teaching 2Normal two-point teaching 3Zone one-point teaching
Setting method
Press the TEACH button with
the background object.
Sensor
Background
Press the TEACH button with
the background object and with
the sensing object.
Sensor
Background Background
Sensor
Object
Press the TEACH button with
the background object
(conveyor, etc.).
Background
Sensor
Set threshold Threshold (a) is set immediately in
front of the background. Threshold (a) is set approximately
in the middle between the
background and sensing object.
A pair of thresholds, (a) and (b), are
set.
O
u
t
p
u
t
O
N
r
a
n
g
e
The output is ON between the
Sensor and La.
E3G-L
The output is ON between the
Sensor and La.
E3G-L
O
b
j
e
c
t
The output is ON between La and
Lb.
E3G-L
ON OFF
D-ON L-ON
Output ON range
Threshold a (La)
Background
ON ON
Threshold a (La)
Background
Ob
j
ect Threshold a (La)
ON Background
Threshold b (Lb)
ON OFF
OFF
La: Distance equivalent to threshold (a)
Lb: Distance equivalent to threshold (b)
The following settings are also possible:
Setting the maximum sensing distance of the Sensor.: Maximum distance setting.
Setting the minimum differential travel of the Sensor.: Minimum distance setting.
Distance from sensor to background must not exceed the values shown below during normal one-point or zone one-point teaching.
Model Distance from sensor to
background
E3G-L1j32 mm min.
E3G-L3j55 mm min.
Maximum sensing distance of E3G-L3 type may differ by color of the sensing object when setting distance is more than 150 mm.
Confirm the operation of the Sensor before actual operation.

E3G-L1/L3 E3G-L1/L3
10
Adjustments
1. Normal One-point Teaching
Sensor
Background
Threshold a (La)
E3G-L
Background
ON
Procedure Operation Panel Status
1Set the mode selector to TEACH.
N
O
R
M
L
2Set the NORMAL/ZONE mode selector to NORMAL. OUT NORM L
3Press the SET button with the background. The threshold indicator
(red) will turn ON. Threshold indicator
(red) turns ON.
TEACH
ZONE D
NEAR
SET
4Set the mode selector to RUN.
(
r
e
d
)
t
u
r
n
s
O
N
.
ADJ
5Set to L-ON or D-ON mode with the operation mode selector.
L-ON: Output ON between background and sensor.
D-ON: Output OFF between background and sensor. Press
RUN
FAR
Application Example 1
Adjusting the Sensor differential travel to the minimum distance. OUT NORM L
1Set the mode selector to TEACH. ZONE D
NEAR
S
E
T
2Set the NORMAL/ZONE mode selector to NORMAL.
A
DJ
TEACH
SET
3Set the UP/DOWN selector to down. RUN
A
D
J
F
A
R
4Press the SET button for 3 s or more. The threshold indicator (red)
will turn ON. Press
P
r
e
s
s
t
h
e
S
E
T
S
e
t
t
h
e
m
o
d
e
R
U
N
FAR
5The distance indicator (green) will turn ON. This means that
teaching is successful. Set the mode selector to RUN to complete
the teaching operation.
P
ress
t
h
e
S
E
T
button for 3 s
or more.
S
e
t
t
h
emo
d
e
selector to
RUN.
6Set to L-ON or D-ON mode with the operation mode selector.
(Refer to Normal One-point Teaching)Threshold indicator
(red) turns ON. Distance Indicator
(green) turns ON.
Application Example 2
Setting the Sensor to the maximum distance. OUT NORM L
1Set the mode selector to TEACH. ZONE D
NEAR
2Set the NORMAL/ZONE mode selector to NORMAL.
A
D
J
TEACH
SET
3Set the UP/DOWN selector to up. R
U
N
ADJ
4Press the SET button for 3 s or more. The threshold indicator
(red) will turn ON. Press
P
h
S
E
T
S
h
d
R
U
N
FAR
5The distance indicator (green) will turn ON. This means that
teaching is successful. Set the mode selector to RUN to complete
the teaching operation.
P
r
e
s
s
Press the SET
button for 3 s
or more.
Set the mode
selector to
RUN.
6Set to L-ON or D-ON mode with the operation mode selector.
(Refer to Normal One-point Teaching)Threshold indicator
(red) turns ON. Distance Indicator
(green) turns ON.
La: Distance equivalent to threshold (a)