ibration resistance
Shock resistance
Degree of protection
Connection method
W
eight
(packed state)
Material
AccessoriesReflector*2, instruction sheet, and screwdriver for adjustment
Case
Lens
Mounting
Bracket
Note: *1.Figures
*2.
These accessories are not provided with the retroreflective models with the suf
10 m (500 mm)
(when using E39-R2)
Opaque: 80 dia. min.
Sensor: 1° to 5
Reflector: 40° min.
Red LED (700 nm)
10 to 30 VDC including 10%
(p-p) ripple
50 mA max.
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 selectable)
L.ON/D.ON selectable
Mechanical:
Electrical:
Protection from reversed power
supply connection, load
short-circuit, and mutual
interference
Operation or reset: 1 msOperation or reset: 30 ms
One-turn adjuster
Incandescent lamp:
Sunlight:
Operating: –25°
(with no icing nor condensation)
Operating:
(with no condensation)
20 MΩ min. at 500 VDC
1,000 V
Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y
Destruction: 500 m/s2 3 times each in X, Y, and Z directions
IEC60529 IP67 (with protective cover)
Pre-wired
Stability indicator (Green)
Teaching indicator (Red and green)
PNP/NPN selector
NORMAL/ZONE selector
Note:The
ON- or OFF-delay adjuster is not available with the E3G-ML79.
Operation indicator
(Orange)
PNP/NPN selector
L.ON/D.ON selector
Operation indicator
(Orange)
Mode selector:
TEACH, RUN (D-ON),
RUN (L.ON)
TEACH button
Sensitivity adjuster
ON-delay adjuster
(see note)
OFF-delay adjuster
(see note)
Operation indicator (Orange)
Stability indicator (Green)
L.ON/D.ON selector
E3G-ML79 (Terminal Block Model)
E3G-ML79T (Terminal Block Model with Timer)
Stability indicator (Green)
Teaching indicator (Red and green)
TEACH button
ON-delay adjuster
(see note)
OFF-delay adjuster
(see note)
Operation indicator (Orange)
TEACH/RUN selector
L.ON/D.ON selector
NORMAL/ZONE selector
Installation
E3G-R/MR
Designing
Power
Supply
A
power supply with full-wave rectification can be connected to the
E3G-MR19(T).
Wiring
The
tensile strength of the cable during operation should not exceed
the
values shown below
Model
E3G-R13, E3G-MR19(T)
E3G-R17
.
T
ensile strength (torque)
50 N max.
10 N max.
Adjustments
Indicators
following illustration indicates the operation levels of the E3G.
The
Set
the E3G so that it will work within the stable operation range.
Stability indicator
(green)
Stable
operation
range
(see note)
Unstable
operation
range
(see note)
Stable
operation
range
(see note)
Note: If
the operation level is set to the stable operation range, the
E3G
ing
influenced by temperature change, voltage
dust,
Incident level
Operation
level x 1.2
Operation level
Operation
level x 0.8
ON
OFF
ON
will operate with the highest reliability and without be
or setting change. If the operation level cannot be set
to the stable operation range, pay close attention to environmental
changes while operating the E3G.
Operation indicator (orange)
L. OND. ON
ON
OFF
fluctuation,
OFF
ON
-
7
Page 8
E3G
E3G-L/ML
Designing
Power
Supply
A
power supply with full-wave rectification can be connected to the
E3G-ML79(T).
Wiring
The
tensile strength of the cable during operation should not exceed
the
values shown below
Model
E3G-L73, E3G-ML79(T)50 N max.
E3G-L77
Mounting
Mounting Directions
Make sure that the sensing side of the Sensor is parallel with the
of each sensing
surface
the sensing object.
.
T
ensile strength (torque)
10 N max.
object. Do not incline the Sensor towards
Sensing side
Make
the
following.
sure not to
install the Sensor in the incorrect direction. Refer to
CorrectCorrectIncorrect
Sensing
object
Install
the Sensor as shown in the following if
greatly dif
Moving direction
Moving direction
fers in color or material.
Sensing
object
Moving direction
CorrectIncorrect
E3G
Sensing
object
each sensing object
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
Sensing object
Mirror-like object
below
Moving direction
Moving direction
Others
If
a teaching data error occurs with the
due
to a power failure or static noise, perform the teaching operation
of
the Sensor again.
.
operation indicator flashing
8
Page 9
E3G
E3G-L/ML
Adjustments
Adjustment
1
2
3
Distance Setting (Teaching)
Select
Steps
Install, wire, and turn ON the Sensor
Perform sensitivity adjustments (teaching). Refer to
.
Distance Setting (T
Check that the mode selector is set to RUN.
the most appropriate teaching method in reference to the following descriptions.
eaching)
below
E3G
.
Application
Teaching
Setting
method
Set threshold
Output ON range
La: Distance equivalent to threshold (a)
Lb: Distance equivalent to threshold (b)
Normal
Mode
1.
Normal One-point T
E3G-L/ML
Teaching without sensing objects
(i.e., teaching the background).
Normal one-point teaching
Press the TEACH button
with the background object.
Threshold (a) is set to a distance in front of the background of 20% of the background distance.
The output is ON between
the Sensor and La.
eaching
Threshold
a
(La)
Background
ON
2.
Normal T
Setting a threshold in the middle
between the background and
sensing object for operation.
Press the TEACH button with the
background object and with the
sensing object.
Threshold (a) is set approximately
in the middle between the background and sensing object.
The output is ON between the
Sensor and La.
wo-point T
E3G-L/ML
Object
ONON
Normal One-point Teaching
Operation
1.Set the mode selector to TEACH.
2.Set the NORMAL/ZONE mode selector to NORMAL.
3.Press the TEACH button with no sensing object
ProcedureProcedure
Note: Perform normal one-point teaching with the background.
Normal T
(i.e., teach the background). The teaching indicator (red) will turn ON.
4.Set the mode selector to RUN.
(Set to L-ON or D-ON mode.)
wo-point Teaching
Operation
1.Set the mode selector to TEACH.
2.Set the NORMAL/ZONE mode selector to NORMAL.
3.Press the TEACH button with a sensing object located at the sensing
position. The teaching indicator (red) will turn ON.
4.Move the sensing object and press the TEACH button with the background.
• If
the teaching is successful, the teaching indicator (green) will turn
ON.
• If
the teaching is not successful, the teaching indicator (red) will start
5.If
to flash.
the
teaching is successful, set the mode selector to RUN to complete
the teaching operation.
the E3G to
Set
to the application.
If the teaching is not successful, change the set distance and object
sensing position and repeat two-point teaching from step 3.
light- or dark-ON mode with the mode selector according
eaching
Threshold a
(La)
Background
Detection of glossy objects in front
of the background.
Zone teachingNormal two-point teaching
Press the TEACH button with the
background object (conveyor
Thresholds (a and b) are set in the
sensing distance on condition that the
difference between these thresholds
are approximately 10% of the whole
sensing distance.
The output is ON between La and Lb.
Zone
Mode
Zone Teaching
E3G-L/ML
L-ON
D-ON
Zone T
1.Set the mode selector to TEACH.
2.Set the NORMAL/ZONE mode selector to ZONE.
3.Press the TEACH button with the background.
ProcedureProcedure
4.Set the mode selector to RUN.
Note: Perform zone teaching with the background.
Background
Threshold
a (La)
OFF
OFF
ON
eaching
• The teaching indicator (red) will turn ON first. Then the teaching
indicator (green) will turn ON.
(Set to L-ON or D-ON mode.)
, etc.).
Threshold b (Lb)
OFF
ON
Operation
Setting the maximum sensing
distance of the Sensor.
Maximum distance setting
(in normal mode)
Press the TEACH button for
longer than three seconds.
The threshold is set so that the
stability indicator will turn ON at
approximately 2 m if the sensing
object is white paper.
The output is ON whenever
the sensing object is located
between the Sensor and at a
distance of 2.2 m.
Maximum Distance Setting (in Normal Mode)
Operation
1.Set the mode selector to TEACH.
2.Set the NORMAL/ZONE mode selector to NORMAL.
3.Press the TEACH button for 3 s or more.
• The teaching indicator (red) will turn ON.
• The
teaching indicator (green) will turn ON in
4.If
teaching was successful.
the teaching is successful, set the mode selector to RUN to complete
the teaching operation.
(Set to L-ON or D-ON mode.)
3 s. This means that
9
Page 10
E3G
E3G
E3G-Mj(T)
Wiring
The
cable with an external diameter of 6 to 8 mm is
Be
sure to attach the cover with screws securely in order to maintain
the
water- and dust-resistive properties of the product.
The conduit screw size is JIS B0202 PF1/2.
T
erminal Cover
Do
not tighten the terminal protection cover with wires pinched be
the Sensor and the cover in order to maintain
tween
dust-resistive
properties of the product.
Recommended
63
mm
Output
Power supply
33 mm
Changing to Side-pullout Cable from Verticalpullout Cable
Procedure
1. Remove
the present cover
2. Attach the E39-L129 Terminal Protection Cover for
side-pullout
3. Remove
E3G.
cable.
the clamping nut, washer
These are used for the side-pullout cable.
4. Attach the rubber bushing and cap provided with the
E39-L129
Note: *Provided
to the E3G as replacements.
(4)
Rubber bushing
Cap*
with the E39-L129.
.
, and rubber bushing of
(1)(2)
(2)
(3)
*
recommended.
the water- and
Example
Rubber bushing
Washer
Clamping nut
E39-L129 Terminal
Protection Cover
Rubber bushing
Washer
Clamping nut
Terminal
protection
cover
the
All E3G Models
Designing
Load
Relay Contact
If
E3G is connected to a load with contacts that spark when the load
is
turned OFF (e.g., a contactor or valve), the normally-closed
may
be turned ON before the normally-open side is turned OFF or
vice-versa. If both normally-open output and normally-closed out-
are used simultaneously
put
-
Refer
to OMRON’
s
of surge suppressors.
Power Reset Time
The Sensor needs 100 ms to be ready to operate after it is turned
ON.
The devices connected to
until
the Sensor
to separate power supplies, be sure to turn ON the Sensor
nected
is ready to operate. If the Sensor and load are con
first.
Power OFF
A single pulse signal may be output from the Sensor immediately
after it is turned OFF. This will occur more frequently if a timer or
counter
is connected to the Sensor and power is supplied
or counter independently
er
the
timer or counter from the built-in power supply of the Sensor
Power Supply
a standard switching regulator is used, be sure to ground the
If
(frame ground) and G (ground) terminals, otherwise the Sensor
malfunction due to the switching noise of the regulator
may
Repeated Cable Bending
Do not bend the sensor cable repeatedly
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 dam
or may malfunction due to induction. Be sure to wire the lines
aged
of the Sensor separated from power lines or high-tension lines or
in an exclusive, shielded conduit.
laid
Wiring
The
E3G has a built-in function to protect the E3G from load short-
circuiting. If load short-circuiting results, the output will be turned
In that case, check the wiring and turn ON the E3G again so
OFF.
that
the short-circuit protection circuit will be reset.
operate
if the output current flow is at least 2.0 times the rated load
current.
If an inductive load is connected to
the
inrush current does not exceed 1.2 times the rated load
The
cable can be extended up to a total length of 100 m, on condition
that
the thickness of the wire is at least 0.3 mm.
Mounting
Mounting Conditions
If
Sensors are mounted face-to-face, make sure that
cross
each other
Be sure to install the Sensor carefully so that the directional
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
tool
during the installation of the Sensor
water-resistive
Use M4 screws to mount the Sensor
When
mounting the case, make sure that the tightening torque ap
plied
to each screw does not exceed 1.2 N S m.
. Otherwise, mutual interference may result.
properties.
, apply an
PCB Relays Catalog (X33)
surge suppressor to the load.
for typical examples
the Photoelectric Sensor must wait
. Therefore, be sure to supply power to
.
the E3G, make sure that
, or the Sensor will loose its
.
side
to the tim
.
FG
.
This function will
current.
no optical axes
angle
other
-
-
-
-
10
Page 11
E3G
E3G
M12 Connector
Be sure to connect or disconnect the M12 connector after turning
OFF
the Sensor
sure to hold the connector cover when connecting or
Be
the M12 connector
ing
Secure the M12 connector by hand. Do not use any pliers, other-
wise
the connector may be damaged.
If
the M12 connector is not connected securely
protection of the Sensor may not be maintained or the connector
be disconnected due to vibration.
may
W
ater Resistance
Do not use the product in water
Tighten
to
a torque of 0.3 to 0.5 N S m in order to ensure water resistivity
.
disconnect
.
, the proper degree of
, in rain, or outdoors.
the operation cover screws and terminal block cover screws
Maintenance and Inspection
Cleaning
Paint thinner damages the casing of the E3G. Do not apply paint
-
to clean the E3G.
thinner
Others
Operating Environment
Do
not install the E3G in the following locations, otherwise the E3G
may
malfunction.
• Places with excessive dust.
• Places with corrosive gases.
• Locations
• Locations where the product is directly exposed to vibration or
.
shock.
directly exposed
to sprays of water
, oil, or chemicals.
11
Page 12
E3G
Dimensions
Note: All
Sensors
Retroreflective Models
units are in millimeters unless otherwise indicated.
E3G
E3G-R13 Pre-wired Model
Operation indicator (orange)
Receiver
R7
Emitter
R11
E3G-MR19 and E3G-MR19T
Terminal Block Models
Stability indicator
(green)
Operation indicator (orange)
Stability indicator
(green)
Mounting
Operation mode selector
Sensitivity
adjuster
M2.6
Two, 4.5-dia.
mounting
holes
Vinyl-insulated round cable
with three conductors, 6 dia.
(17 x 0.16 dia.); standard
length: 2 m
Operation
mode selector
Holes
Two, M4
E3G-R17 Connector Model
Note:All dimensions other than the
M2.6
ones specified below are the
same as the corresponding dimensions of E3G-R13.
M12 Connector
10.5 dia.
Receiver
R7
Emitter
R11
Sensitivity adjuster
OFF-delay adjuster
ON-delay adjuster
Two, 4.5-dia.
mounting holes
See the table.
Note:The ON- or OFF-delay adjuster is not
available with the E3G-MR19.
Mounting
Clamping nut (opposing side: 22)
Applicable cable: 6 to 8 dia.
Holes
Two, M4
ConduitSuffix
PF1/2 (JIS B0202)
None
PG13.5 (CENELEC)-G
1
/2-14NPT-US
code
12
Page 13
E3G
Distance-setting Models
E3G
E3G-L73 Pre-wired Model
Operation indicator (orange)
Stability indicator (green)
Teaching indicator (red/green)
Receiver
14-dia. lens
Emitter
E3G-ML79 and E3G-ML79T
Terminal Block Models
TEACH button
Operation
mode selector
Vinyl-insulated round cable
with three conductors, 6 dia.
(17 x 0.16 dia.); standard
length: 2 m
Operation indicator (orange)
Stability indicator (green)
Teaching indicator (red/green)
Mounting
Two, 4.5-dia.
mounting
holes
Operation mode
selector
Holes
Two, M4
E3G-L77 Connector Model
Note:All dimensions other than the
M2.6
ones specified below are the
same as the corresponding dimensions of the E3G-L73.
M12 Connector
10.5 dia.
Receiver
14-dia. lens
Emitter
TEACH button
OFF-delay adjuster
ON-delay adjuster
M2.6 nut
Note:The ON- or OFF-delay adjuster is not
Two, 4.5-dia. mounting holes
Clamping nut (opposing side: 22)
Applicable cable: 6 to 8 dia.
PF1/2 (JIS B0202)
See the table.
PG13.5 (CENELEC)-G
1
/2-14NPT-US
available with the E3G-ML79.
Mounting
ConduitSuffix
None
Holes
Two, M4
code
13
Page 14
E3G
Accessories (Order Separately)
E3G
Reflectors
E39-R2
Material
Surface: Acrylic resin
Backside: ABS resin
Note:
Supplied with E3G-R
E39-R1
Material
Surface: Acrylic resin
Backside: ABS resin
Four, 3.5 dia.
jj, E3G-MRjj
Two, 3.5 dia.
, and E3G-MR
jj-US.
Terminal Protection Cover for
Side-pullout Cable
E39-L129
Note: 1. The cover is provided with a rubber
bushing and cap to prevent the cable
from
being pulled out vertically
2. Refer
to page
of the product.
od
10 for the mounting
.
meth
-
Mounting Brackets
E39-L131
90°±1°
Material: Stainless steel (SUS304)
Two, R3.2
Two, R3.2
Four, R1
Four, R2.1
Two,
4.2 dia.
E39-L132
Two, R3.2
Two, R3.2
4.2 dia.
90°±1°
Material: Stainless steel (SUS304)
Two, R2.2
14
Page 15
E3G
E39-L135E39-L136
E3G
Material: Stainless steel (SUS304)
Two, 4.2
Four, R2.1
Two, R3.2
Two, R3.2
Two, 4.2 dia.
Two, R3.2
Material: Stainless steel (SUS304)
Two, R3.2
Fourteen,
R2.1
90°±1°
Sensor I/O Connectors
Straight
XS2F-D421-DC0-A (L=2 m)
XS2F-D421-GC0-A (L=5 m)
L-shaped
XS2F-D422-DC0-A (L=2 m)
XS2F-D422-GC0-A (L=5 m)
5 dia.
M12
45°
28.3
5 dia.
14.9 dia.
M12
25.3
40.7
6 dia.
6 dia.
5
30
L
L
30
50
50
5
45°
15
Page 16
E3G
Precautions
Do not ignore the following items that are essential for securing
safety
during Sensor operation.
• Do
not use the Sensor in locations with explosive or
gas.
• Do not use the Sensor in the water or electrically conductive
solutions.
• Do
not disassemble, repair
, or modify the product.
flammable
E3G
• Make sure that the power supply specifications, such as AC or
DC, are correct.
•
Do not apply voltage or current exceeding the rated ranges.
•
Do not make mistakes in wiring, such as mistakes in polarity
•
Be sure to connect the load correctly
•
Do not short-circuit the load terminals.
.
.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To
convert millimeters into inches, multiply by 0.03937. T
o convert grams into ounces, multiply by 0.03527.
Cat. No. E278-E1-2In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Sensors Division
Sensing Devices and Components Division H.Q.
28th Fl., Crystal T
1-2-27, Shiromi, Chuo-ku,
Osaka 540-6028 Japan
Phone: (81)6-6949-6012 Fax: (81)6-6949-6021
16
ower Bldg.,
Printed
in Japan
1298-3M (0998)
a
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