Manual Fiber Amplifier
E3X-NA
Simple and Easy-to-Use Amplifiers
with a Sensitivity Adjuster
Provided as a Standard Feature
Intuitive LED bar display shows light levels at a glance.
Utilizes OMRON’s innovative wire-saving connector.
Reduced wiring and space requirements for power
lines.
Optical communications prevents mutual interference
for up to 5 amplifiers
High-speed detection, mark-detecting, and water-
resistant models also available.
Be sure to read Safety Precautions on
page 10.
Ordering Information
Amplifier Units
Amplifier Units with Cables
Amplifier Units with Connectors
Amplifier Unit Connectors (Order Separately) Note: Stickers for Connectors are included as accessories.
Item Appearance Control output Model
NPN output PNP output
Standard models
ON/OFF output
E3X-NA11 E3X-NA41
With self-diagnosis function E3X-NA21 E3X-NA51
High-speed detection models E3X-NA11F E3X-NA41F
Mark-detecting models E3X-NAG11 E3X-NAG41
Water-resistant models E3X-NA11V E3X-NA41V
Item Appearance Applicable Connector
(order separately) Control output Model
NPN output PNP output
Standard models
Master E3X-CN11
ON/OFF output
E3X-NA6 E3X-NA8
Slave E3X-CN12
Water-resistant
models
(M8 connectors)
XS3F-M421-40@-A
XS3F-M422-40@-A E3X-NA14V E3X-NA44V
Item Appearance Cable length No. of
conductors Model
Master Connector
2 m
3E3X-CN11
Slave Connector 1E3X-CN12
http://www.ia.omron.com/ 1
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
Sensor I/O Connectors (Order Separately)
Note: Refer to Introduction to Sensor I/O Connectors for details.
Accessories (Order Separately)
Combining Amplifier Units and Connectors Amplifier Units Applicable Connectors (Order Separately)
Refer to the following tables when placing an order. Type NPN PNP +Master Connector Slave Connector
Basically, Amplifier Units and Connectors are sold
separately.
Standard
models E3X-NA6 E3X-NA8 E3X-CN11 (3-wire) E3X-CN12 (1-wire)
When Using 5 Amplifier Units
5 Amplifier Units +1 Master Connector + 4 Slave Connectors
Size Cable specifications Appearance Cable type Model
M8 Standard cable
2 m
Four-
conductor
cable
XS3F-M421-402-A
5 m XS3F-M421-405-A
2 m XS3F-M422-402-A
5 m XS3F-M422-405-A
Straight connector
L-shaped connector
Mounting Brackets
Appearance Applicable models Model Quantity
E3X-NA@
E3X-NA@F
E3X-NAG@
E39-L143
1
E3X-NA@VE39-L148
End Plate
Appearance Model Quantity
PFP-M 1
http://www.ia.omron.com/ 2
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
Ratings and Specifications
Amplifier Units
* When there are 8 or more Units mounted side-by-side, the response time will be 350 μs max.
Amplifier Unit Connectors
Amplifier Units with Cables Amplifier Units with Connectors
Type Standard models High-speed
detection models
Mark-detecting
models
Water-resistant
models Standard models
Water-resistant
models
(M8 connectors)
Model
NPN
output E3X-NA11 E3X-NA21 E3X-NA11F E3X-NAG11 E3X-NA11V E3X-NA6 E3X-NA14V
Item PNP
output E3X-NA41 E3X-NA51 E3X-NA41F E3X-NAG41 E3X-NA41V E3X-NA8 E3X-NA44V
Light source
(wavelength) Red LED (680 nm) Green LED
(520 nm) Red LED (680 nm)
Power supply
voltage 12 to 24 VDC ±10%, ripple (p-p): 10% max.
Current
consumption 35 mA max.
35 mA max.
(for 24-VDC power
supply)
35 mA max.
Control output Load current: 50 mA max.; residual voltage: 1 V max.; NPN/PNP (depends on model) open collector; Light-ON/Dark-ON mode selector
Self-diagnosis
output None Yes None
Response time Operate or reset: 200 μs max. *Operate: 20 μs max.
Reset: 30 μs max. Operate or reset: 200 μs max. *
Sensitivity
adjustment 8-turn sensitivity adjuster (with indicator)
Protection circuits
Reverse polarity, output short-
circuit, mutual interference pre-
vention (optically synchronized)
Reverse polarity,
output shortcircuit
Reverse polarity, output short-circuit, mutual interference prevention (optically syn-
chronized)
Timer function OFF-delay timer: 40 ms (fixed)
Ambient illumination
(Receiver side)
Incandescent lamp: 10,000 lux max.
Sunlight: 20,000 lux max.
Ambient
temperature range
Operating:Groups of 1 to 3 Amplifiers: 25°C to 55°C
Groups of 4 to11 Amplifiers: 25°C to 50°C
Groups of 12 to16 Amplifiers: 25°C to 45°C
Storage: 30°C to 70°C (with no icing or condensation)
Ambient humidity
range Operating and storage: 35% to 85% (with no condensation)
Insulation resistance 20 MΩ min. (at 500 VDC)
Dielectric strength 1,000 VAC at 50/60 Hz for 1 minute 500 VAC at 50/60
Hz for 1 minute
Vibration resistance Destruction: 10 to 55 Hz with a 1.5-mm double amplitude for 2 hrs each in X, Y and Z directions
Shock resistance Destruction: 500 m/s2, for 3 times each in X, Y and Z directions
Degree of protection IEC 60529 IP50 (with Protective Cover attached)
IEC 60529 IP66
(with Protective
Cover attached)
IEC 60529 IP50
(with Protective
Cover attached)
IEC 60529 IP66
(with Protective
Cover attached)
Connection method Pre-wired (standard cable length: 2 m) Standard
connector
Standard M8
connector
Weight
(packed state) Approx. 100 g Approx. 110 g Approx. 55 g Approx. 65 g
Material
Case Polybutylene terephthalate (PBT)
Cover Polycarbonate Polyethersulfone
(PES) Polycarbonate Polyethersulfone
(PES)
Accessories Instruction manual
Item Model E3X-CN11 E3X-CN12
Rated current 2.5 A
Rated voltage 50 V
Contact resistance 20 mΩ max. (20 mVDC max., 100 mA max.)
(The above figure is for connection to the Amplifier Unit and the adjacent Connector. It does not include the conductor resistance of the cable.)
Number of inser-
tions Destruction: 50 times (for connection to the Amplifier Unit and the adjacent Connector)
Material Housing Polybutylene terephthalate (PBT)
Contact Phosphor bronze/gold-plated nickel
Weight
(packed state) Approx. 55 g Approx. 25 g
http://www.ia.omron.com/ 3
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
Sensing Distance
Through-beam Models (Unit: mm)
Model E3X-NA@
Type General-purpose
models
High-speed
models
Standard
models
Flexible
(new standard)
E32-T11R/E32-T12R/E32-T15XR/E32-TC200BR(B4R) 280 80
E32-T14LR/E32-T15YR/E32-T15ZR 110 33
E32-T21R/E32-T22R/E32-T222R/E32-T25XR/
E32-TC200FR(F4R) 60 18
E32-T24R/E32-T25YR/E32-T25ZR 30 9
Standard
E32-TC200/E32-T12/E32-T15X/E32-TC200B(B4) 400 120
E32-T14L/E32-T15Y/E32-T15Z 240 70
E32-TC200A 360 100
E32-TC200E/E32-T22/E32-T222/E32-T25X/E32-TC200F(F4) 100 30
E32-T24/E32-T25Y/E32-T25Z 90 27
Break resistant
E32-T11/E32-T12B/E32-T15XB 360 100
E32-T21/E32-T221B/E32-T22B 100 30
E32-T25XB 75 20
Fluorine coating E32-T11U 360 100
Special-beam
models
Long distance,
high power
E32-T17L 14000 4200
E32-TC200 + E39-F1 3000 900
E32-T11R + E39-F1 2100 630
E32-T11 + E39-F1 2000 600
E32-T14 1800 540
E32-T11L/E32-T12L 700 210
E32-T11L + E39-F2 500 150
E32-T11R + E39-F2 220 65
E32-T11 + E39-F2 360 100
E32-T21L/E32-T22L 200 60
Ultracompact,
ultrafine sleeve
E32-T223R 60 18
E32-T33-S5 20 6
E32-T333-S5 5 1.5
E32-T334-S5 2.5 0.8
Fine beam (nar-
row vision field)
E32-T22S 1000 300
E32-T24S 700 210
Area sensing
E32-T16PR 450 130
E32-T16P 600 180
E32-T16JR 390 110
E32-T16J 520 150
E32-T16WR 690 200
E32-T16W 920 270
E32-T16 1500 450
E32-M21 300 90
Environment-
resistive
models
Heat resistant
E32-T51 400 120
E32-T54 130 35
E32-T81R-S 180 50
E32-T61-S + E39-F2 390 130
E32-T61-S + E39-F1 3000 900
E32-T84S-S 700 210
E32-T61-S 300 90
Chemical
resistant
E32-T11F 1050 380
E32-T12F 1600 480
E32-T14F 200 60
E32-T51F 700 200
E32-T81F-S 350 100
Vacuum
resistant
E32-T51V 100 ---
E32-T51V + E39-F1V 600 ---
E32-T54V 65 ---
E32-T54V + E39-F1V 390 ---
E32-T84SV 250 ---
http://www.ia.omron.com/ 4
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
Reflective Models (Unit: mm)
Model E3X-NA@
Type General-purpose
models
High-speed
models
Standard
models
Flexible
(new standard)
E32-D11R/E32-D12R/E32-D15XR/E32-DC200BR(B4R) 90 30
E32-D14LR 16 5
E32-D15YR/E32-D15ZR 20 5
E32-D211R/E32-D21R/E32-D22R/E32-D25XR/
E32-DC200FR(F4R) 15 5
E32-D24R 72.3
E32-D25YR/E32-D25ZR 4 1.2
Standard
E32-DC200/E32-D15X/E32-DC200B(B4) 150 50
E32-D12 120 40
E32-D14L 40 13
E32-D15Y/E32-D15Z 50 15
E32-D211/E32-DC200E/E32-D22/E32-D25X/
E32-DC200F(F4) 36 12
E32-D24 15 5
E32-D25Y/E32-D25Z 10 3.3
Break resistant
E32-D11/E32-D15XB 90 30
E32-D21B/E32-D221B 35 10
E32-D21/E32-D22B 15 5
E32-D25XB 25 8
Fluorine coating E32-D11U 90 30
Special-beam
models
Long distance,
high power
E32-D16 40 to 400 55 to 70
E32-D11L 200 65
E32-D21L/E32-D22L 50 17
Ultracompact,
ultrafine sleeve
E32-D33 10 3.3
E32-D331 1.5 0.5
Coaxial,
small spot
E32-CC200R 75 25
E32-CC200 150 50
E32-D32L 80 25
E32-C31/E32-D32 40 13
E32-C42 + E39-F3A Spot diameter of 0.1 to 0.6 mm at 6 to 15 mm.
E32-D32 + E39-F3A Spot diameter of 0.5 to 1mm at 6 to 15 mm.
E32-C41 + E39-F3A-5 Spot diameter of 0.1 mm at 7 mm
E32-C31 + E39-F3A-5 Spot diameter of 0.5 mm at 7 mm.
E32-C41 + E39-F3B Spot diameter of 0.2 mm at 17 mm.
E32-C31 + E39-F3B Spot diameter of 0.5 mm at 17 mm.
E32-C31 + E39-F3C Spot diameter of 4 mm max. at 0 to 20 mm.
Area sensing E32-D36P1 75 25
Retro-reflective E32-R21 + E39-R3 (provided) 10 to 250
E32-R16 + E39-R1 (provided) 150 to 1500 150 to 1000
Convergent-
reflective
E32-L25/E32-L25A 3.3
E32-L24S 0 to 4
E32-L24L 2 to 6 (center 4)
E32-L25L 5.4 to 9 (center 7.2)
E32-L86 4 to 10
E32-L16 0 to 15 0 to 13
Environment-
resistive models
Heat resistant
E32-D51 120 40
E32-D81R/E32-D61 45 15
E32-D73 30 10
Chemical
resistant
E32-D12F 50 16
E32-D14F 20 6.5
http://www.ia.omron.com/ 5
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
Application-specific Models (Unit: mm)
Green Light Source Models (Unit: mm)
Model E3X-NA@
Type General-purpose
models
High-speed
models
Application-
specific Models
Label detection E32-G14 10
E32-T14 1800 540
Liquid-level
detection
E32-L25T
Applicable tube: Transparent tube with a
diameter in the range 8 to 10 mm and a
recommended wall thickness of 1 mm
E32-D36T Applicable tube: Transparent tube
(no diameter restrictions )
E32-D82F1(F2) Liquid-contact model
Model E3X-NAG@
Type Green Light Source Models
Through-beam
models
Standard
E32-T11R/E32-T12R/E32-T15XR/E32-TC200BR(B4R) 50
E32-T14LR/E32-T15YR/E32-T15ZR 20
E32-TC200/E32-T12/E32-T15X/E32-TC200B(B4) 75
E32-T14L/E32-T15Y/E32-T15Z 45
Special beam E32-T11L/E32-T12L 130
Reflective
Standard
E32-D11R/E32-D12R/E32-D15XR/E32-DC200BR(B4R) 15
E32-D14LR 3.5
E32-D15YR/E32-D15ZR 3.3
E32-DC200/E32-D15X/E32-DC200B(B4) 25
E32-D14L 10
E32-D15Y/E32-D15Z 8
Special beam
E32-D11L 35
E32-CC200R 12
E32-CC200 25
E32-D32L 12
E32-C31/E32-D32 6
Application
specific Label detection E32-T14 330
E32-G14 10
Refer to E32 Series for details on Fiber Units.
http://www.ia.omron.com/ 6
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
Engineering Data (Typical)
Number of Turns of Sensitivity Adjuster vs. Sensing Distance
E32-T11L E32-D11L
Sensing Distance vs. Differential Travel
E32-T11L E32-D11L
1.2
1.0
0.8
0.6
0.4
0.2
0
Distance (m)
246810
Number of turns
E3X-NA@(V)
E3X-NA@F
400
300
200
100
0
Distance (mm)
246810
Number of turns
E3X-NA@F
E3X-NA@(V)
100
80
60
40
20
0
Differential travel (mm)
100 200 300 400 500 600 700
Distance
(
mm
)
E3X-NA@(V)
20
15
10
5
0
Differential travel (mm)
50 100 150 200
Distance
(
mm
)
E3X-NA@(V)
http://www.ia.omron.com/ 7
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
I/O Circuit Diagrams
NPN Output
Model Operation
mode Timing charts Operation
selector Output circuit
E3X-NA11
E3X-NA6
E3X-NAG11
E3X-NA11F
E3X-NA11V
E3X-NA14V
Light-ON LIGHT ON
(L-ON)
Dark-ON DARK ON
(D-ON)
E3X-NA21
Light-ON LIGHT ON
(L-ON)
Dark-ON DARK ON
(D-ON)
Incident light
No incident light
ON
OFF
ON
OFF
Operate
Reset
T
Operation
indicator
(orange)
Output
transistor
Load
(relay)
(Between brown and black leads)
Black
Brown
Blue
Control output
Load
Operation indicator
(orange)
Photo-
electric
Sensor
main
circuit
12 to
24 VDC
1
4
3
M8 Connector Pin Arrangement
1
24
3
Note: Pin 2 is not used.
T
Incident light
No incident light
ON
OFF
ON
OFF
Operate
Reset
Operation
indicator
(orange)
Output
transistor
Load
(relay)
(Between brown and black leads)
T
Incident light
No incident light
ON
OFF
ON
OFF
Operate
Reset
Operation
indicator
(orange)
Output
transistor
Load
(relay)
(Between brown and black leads)
0 V
Orange
Self-diagnosis output
Load
(relay)
Load
(relay)
Black
Brown
Blue
Photo-
electric
Sensor
main
circuit
12 to
24 VDC
Operation indicator
(orange)
Control
output
Incident level
indicators
(4 green, 1 red)
T
Incident light
No incident light
ON
OFF
ON
OFF
Operate
Reset
Operation
indicator
(orange)
Output
transistor
Load
(relay)
(Between brown and black leads)
http://www.ia.omron.com/ 8
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
PNP Output
Plug (Sensor I/O Connector)
Nomenclature
Amplifier Units
Model Operation
mode Timing charts Operation
selector Output circuit
E3X-NA41
E3X-NA8
E3X-NAG41
E3X-NA41F
E3X-NA41V
E3X-NA44V
Light-ON LIGHT ON
(L-ON)
Dark-ON DARK ON
(D-ON)
E3X-NA51
Light-ON LIGHT ON
(L-ON)
Dark-ON DARK ON
(D-ON)
T
Incident light
No incident light
ON
OFF
ON
OFF
Operate
Reset
Operation
indicator
(orange)
Output
transistor
Load
(relay)
(Between brown and black leads)
Black
Brown
Blue
Load
Operation
indicator
(orange)
Photo-
electric
Sensor
main
circuit
12 to
24 VDC
M8 Connector Pin Arrangement
Control
output
1
4
3
1
24
3
Note: Pin 2 is not used.
T
Incident light
No incident light
ON
OFF
ON
OFF
Operate
Reset
Operation
indicator
(orange)
Output
transistor
Load
(relay)
(Between brown and black leads)
T
Incident light
No incident light
ON
OFF
ON
OFF
Operate
Reset
Operation
indicator
(orange)
Output
transistor
Load
(relay)
(Between brown and black leads)
0 V
Orange Self-diagnosis output
Load
(relay)
Load
(relay)
Black
Brown
Blue
Operation indicator
(orange)
Photo-
electric
Sensor
main
circuit
12 to
24 VDC
Control
output
Incident level
indicators
(4 green, 1 red)
T
Incident light
No incident light
ON
OFF
ON
OFF
Operate
Reset
Operation
indicator
(orange)
Output
transistor
Load
(relay)
(Between brown and black leads)
2
4
1
3
1
2
3
4
Brown
White
Blue
Black
Terminal number
XS3F-M421-402-A
XS3F-M421-405-A
XS3F-M422-402-A
XS3F-M422-405-A
Wire color
Note: Pin 2 is not used.
Classification Wire color Connection pin Application
DC
Brown 1 Power supply
(+V)
White 2 ---
Blue 3 Power supply
(0 V)
Black 4 Output
Incident level indicators
Lock lever
Sensitivity indicator
8-turn sensitivity adjuster
Operation Indicator Timer switch
ON: Timer function is ON.
OFF: Timer function is OFF.
Operation Selector
Use to switch between
Light-ON and Dark-ON
http://www.ia.omron.com/ 9
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
Safety Precautions
Refer to Warranty and Limitations of Liability.
This product is not designed or rated for ensuring
safety of persons either directly or indirectly.
Do not use it for such purposes.
Do not use the product in atmospheres or environments that exceed
product ratings.
Amplifier Units
Designing
Communications Hole
The hole on the side of the Amplifier Unit is a communications hole for
preventing mutual interference when Amplifier Units are mounted
side-by-side. The E3X-MC11 Mobile Console (order separately)
cannot be used.
If an excessive amount of light is received via the Sensor, the mutual
interference prevention function may not work. In this case, make the
appropriate adjustments using the sensitivity adjuster.
The mutual interference prevention function will not operate when the
E3X-NA is used side-by-side with E3X-DA-N models.
Mounting
DIN Track Mounting/Removal
Mounting Amplifier Units
1. Mount the Amplifier Units one at a time onto the DIN track.
2. Slide the Amplifier Units together, line up the clips, and press the
Amplifier Units together until they click into place.
Removing Amplifier Units
Slide Amplifier Units away from each other, and remove from the DIN
track one at a time. (Do not attempt to remove Amplifier Units from the
DIN track without separating them first.)
Fiber Connection and Disconnection
The E3X Amplifier Unit has a lock lever. Connect or disconnect the
fibers to or from the E3X Amplifier Unit using the following
procedures:
1. Connection
Open the Protective Cover, insert the fibers according to the fiber
insertion marks on the side of the Amplifier Unit, and lower the lock
lever.
2. Disconnection
Remove the Protective Cover and raise the lock lever to pull out the
fiber.
Note:To maintain the fiber properties, confirm that the lock is released
before removing the fiber.
3. Precautions for Fiber Connection/Disconnection
Be sure to lock or unlock the lock lever within an ambient temperature
range between 10°C and 40°C.
Operating Environment
Ambient Conditions
If dust or dirt adhere to the hole for optical communications, it may
prevent normal communications. Be sure to remove any dust or dirt
before using the Units.
Other
Protective Cover
Be sure to mount the Protective Cover before use.
WARNING
Precautions for Correct Use
Note: 1. The specifications for ambient temperature will vary according to the
number of Amplifier Units used together. For details, refer to Ratings
and Specifications.
2. Always turn OFF the power supply before mounting or removing
Amplifier Units.
Clip Click into
place
Lock button
Fiber Fiber insertion mark 10.7 mm
Insertion position
Locked Unlocked
Protective cover
http://www.ia.omron.com/ 10
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
Amplifier Units with Connectors
Mounting
Mounting Connectors
1. Insert the Master or Slave Connector into the Amplifier Unit until it
clicks into place.
2. Join Amplifier Units together as required after all the Master and
Slave Connectors have been inserted.
3. Attach the seals (provided as accessories) to the sides of Master
and Slave Connectors that are not connected to other Connectors.
Note: Attach the stickers to the sides with grooves.
Removing Connectors
1. Slide the slave Amplifier Unit for which the Connector is to be
removed away from the rest of the group.
2. After the Amplifier Unit has been separated, press down on the
lever on the Connector and remove it. (Do not attempt to remove
Connectors without separating them from other Amplifier Units
first.)
Mounting End Plate (PFP-M)
Depending on how it is mounted, an Amplifier Unit may move during
operation. In this case, use an End Plate.
Before mounting an End Plate, remove the clip from the master
Amplifier Unit using a nipper or similar tool.
The clip can also be removed using the following mechanism, which
is incorporated in the construction of the section underneath the clip.
1. Insert the clip to be removed into the slit underneath the clip on
another Amplifier Unit.
2. Remove the clip by rotating the Amplifier Unit.
Pull Strengths for Connectors (Including Cables)
E3X-CN11: 30 N max.
E3X-CN12: 12 N max.
Insert
Sticker
Sticker
Remove
Lever
Press down
Cli
p
Rotate
http://www.ia.omron.com/ 11
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
Dimensions (Unit: mm)
Amplifier Units
10.75
8
4
Two, 2.4 dia.
Two, 3.2-dia. holes Mounting bracket (E39-L143) (Order separately)
Stainless steel (SUS304)
A (See note 1.)
Mounting Holes
Two, M3
Operation indicator
Incident level indicators
* The EX3-NA21 and E3X-NA51 use
4-conductor cable.
Note: 1. The mounting bracket can also be
used on side A.
2. The hole for optical
communications is for preventing
mutual interference. There is no
hole for E3X-NA@F models.
4-dia. vinyl-insulated round cable with 3
conductors (Conductor cross section: 0.2
mm2; Insulator diameter: 1.1 mm),
Standard length: 2 m.
10.7
10
364.3
38.6
31.5
9.9
5.3
3.4
22.4
4.4
4.1
13 34.8
2.4
22.4 16
16
15.75 9.2
13.05
16
4.4
3.4
Hole for optical communications (See note 2.)
Amplifier Units with Cables
E3X-NA11
E3X-NA11F
E3X-NA41
E3X-NA41F
E3X-NAG11
E3X-NAG41
E3X-NA21
E3X-NA51
With Mounting Bracket Attached
9.2
28.65
25.95
A (See note 1.)
12
8
10.7
Two, 2.4 dia.
4.3
9.9
3.43.9
33
Mounting bracket (E39-L148) (Order separately)
Stainless steel (SUS304)
23.9
14.4
11.5 67.2
37
16
16
23.9 6.6
11.2
2.8
(See note 2.)
40
5.4
5.4
3.4
3.4
16
Two, M3
Mounting Holes
6.9
81.5
Operation indicator
Incident level indicators
Hole for
optical
communi-
cations
Note: 1. The mounting bracket can also be used on
side A.
2. 4-dia. vinyl-insulated round cable with 3
conductors (Conductor cross section: 0.45
mm2, Insulator diameter: 1.1 mm),
Standard length: 2 m.
With Mounting Bracket Attached
Amplifier Units with Cables, Water-resistant Models
E3X-NA11V
E3X-NA41V
http://www.ia.omron.com/ 12
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
10 64.33
8
Two, 2.4 dia.
10.7
9.9
3.4
38.6
13
3.95.1
1.7
4.2
6.2 1.7
36.7
14
31.5
5.5
1.8
Operation indicator
1.8
15.75 9.2
13.05
Incident level indicators
Hole for optical communications
(for preventing mutual interference)
Amplifier Units with Connectors
E3X-NA6
E3X-NA8
Dimensions with Master Connector Connected Dimensions with Slave Connector Connected
1.5
31.5
1.8 5.1 3.9
12.95
4
10
64.3
67.5
71
E3X-CN11:
4.0 dia.
64.3
67.5
71
1.5
31.5
1.8 5.1 3.9 34.8
12.95
E3X-CN12:
2.6 dia.
11.55
17.45
4
10
http://www.ia.omron.com/ 13
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
E3X-NA
Amplifier Unit Connectors
Sensor I/O Connectors
Accessories (Order Separately)
Mounting Brackets
End Plates
*
12
8
10.7
Two, 2.4 dia.
4.3
9.9
3.43.9
33
23.9
14.4
11.5 67.2
37
16
16
23.9
11
11.2
2.8 M8
40
5.4
5.4
3.4
3.4
16
Two, M3
Operation indicator
Incident level indicators
9.2
28.65
25.95
Mounting bracket (E39-L148) (Order separately)
Stainless steel (SUS304)
Mounting Holes
6.9
81.5
* The mounting bracket can also be
used on this side.
Hole for
optical
communi-
cations
Amplifier Units with Connectors, Water-resistant
Models
E3X-NA14V
E3X-NA44V
With Mounting Bracket Attached
Refer to E32 Series for details on Fiber Units.
http://www.ia.omron.com/ 14
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
Photoelectric Sensors Technical Guide
General Precautions
For precautions on individual products, refer to Safety Precautions in individual product information.
These Sensors cannot be used in safety devices for
presses or other safety devices used to protect
human life. These Sensors are designed for use in
applications for sensing workpieces and workers
that do not affect safety.
To ensure safety, always observe the following precautions.
Wiring
Operating Environment
Do not use a Sensor in an environment where there are explosive or inflammable gases.
WARNING
Precautions for Safe Use
Item Typical examples
Power Supply Voltage
Do not use a voltage in
excess of the operating
voltage range.
Applying a voltage in excess
of the operating voltage
range, or applying AC power
(100 VAC or greater) to a DC
Sensor may cause explosion
or burning.
---
Load Short-circuiting
Do not short-circuit the load.
Doing so may cause explo-
sion or burning.
Incorrect Wiring
Do not reverse the power
supply polarity or otherwise
wire incorrectly. Doing so
may cause explosion or
burning.
Connection without a
load
If the power supply is
connected directly without a
load, the internal elements
may burst or burn. Be sure to
insert a load when
connecting the power
supply.
Load
Sensor
Brown
Blue Black
• DC Three-wire NPN Output Sensors
+
-
(Load
short
circuit)
Load
Sensor
Brown
Blue Black
• DC Three-wire NPN Output Sensor
(Load short circuit)
Load
Sensor
Brown
Blue
• AC Two-wire Sensors
Example: E3E2
-
+
Load
Sensor
Brown
Blue Black
• DC Three-wire NPN Output Sensors
Example: Incorrect Polarity
+
+
Load
Load
Sensor
Brown
Blue Black
Sensor
Brown
Black Blue
DC Three-wire NPN Output Sensors
Example: Incorrect Polarity Wiring
12 to
24VDC
0V
Sensor
Brown
Blue
Black
• DC Three-wire NPN Output Sensors
Sensor
Brown
Blue
• AC 2-wire Sensors
Example: E3E2 etc.
http://www.ia.omron.com/ C-1
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
Photoelectric Sensors Technical Guide
Design
Power Reset Time
The Sensor will be ready to detect within approximately 100 ms after
the power is turned ON.
If the Sensor and the load are connected to separate power supplies,
turn ON the Sensor power before turning ON the load power. Any
exceptions to this rule are indicated in Safety Precautions in individual
product information.
Turning OFF Power
An output pulse may be generated when the power is turned OFF. It
is recommended that the load or load line power be turned OFF
before the Sensor power is turned OFF.
Power Supply Types
An unsmoothed full-wave or half-wave rectifying power supply cannot
be used.
Mutual Interference
Mutual interference is a state where an output is unstable because the Sensors are affected by light from the adjacent Sensors.
The following measures can be taken to avoid mutual interference.
Precautions for Correct Use
Counter-
measure Concept Through-beam Sensors Reflective Sensors
1
Use a Sensor
with the
interference
prevention
function.
If Sensors are mounted in close proximity, use Sensors with the interference prevention function.
10 or fewer Sensors: E3X-DA@-S, E3X-MDA, E3C-LDA Fiber Sensors
Performance, however, will depend on conditions. Refer to pages E3X-DA-S/E3X-MDA
and E3C-LDA.
5 or fewer Sensors: E3X-NA Fiber Sensors
2 or fewer Sensors: E3T, E3Z, E3S-C, E3G-L1/L3, or E3S-C Built-in Amplifier Photoelectric Sensors (except
Through-beam Sensors)
E3C Photoelectric Sensor with separate amplifier
2
Install an
inference
prevention
filter.
A mutual interference prevention polarizing filter can be
installed on only the E3Z-TA to allow close-proximity
mounting of up to 2 Sensors.
Mutual Interference Prevention Polarizing Filter: E39-E11
---
3
Separate
Sensors to
distance where
interference
does not occur.
Check the parallel movement distance range in the
catalog, verify the set distance between adjacent
Sensors, and install the Sensors accordingly at a
distance at least 1.5 times the parallel movement
distance range.
If the workpieces move from far to near, chattering may
occur in the vicinity of the operating point. For this type of
application, separate the Sensors by at least 1.5 times the
operating range.
4
Alternate
Emitters and
Receivers.
Close mounting of Sensors is possible by alternating
the Emitters with the Receivers in a zigzag fashion (up
to two Sensors). However, if the workpieces are close
to the Photoelectric Sensors, light from the adjacent
Emitter may be received and cause the Sensor to
change to the incident light state.
---
5
Offset the
optical axes.
If there is a possibility that light from another Sensor
may enter the Receiver, change the position of the
Emitter and Receiver, place a light barrier between the
Sensors, or take other measures to prevent the light
from entering the Receiver.
(Light may enter even if the Sensors are separated by
more than the sensing distance.)
If Sensors are mounted in opposite each other, slant the
Sensors as shown in the following diagram. (This is
because the Sensors may affect each other and cause
output chattering even if separated by more than the
Sensor sensing distance.)
6Adjust the
sensitivity.
Lowering the sensitivity will generally help.
L
1.5 × L
Sensor Sensor
Workpiece
Workpiece
Emitter
Receiver
Receiver
Emitter
Workpiece
Sensor Sensor
θθ
http://www.ia.omron.com/ C-2
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
Photoelectric Sensors Technical Guide
Noise
Countermeasures for noise depend on the path of noise entry, frequency components, and wave heights. Typical measures are as given in the
following table.
Wiring
Cable
Unless otherwise indicated, the maximum length of cable extension is
100 m using wire that is 0.3 mm2 or greater.
Exceptions are indicated in Safety Precautions in individual product
information.
Cable Tensile Strength
When wiring the cable, do not subject the cable to a tension greater than
that indicated in the following table.
Note: Do not subject a shielded cable or coaxial cable to tension.
Repeated Bending
Normally, the Sensor cable should not be bent repeatedly.
(For bending-resistant cable, see Attachment to Moving Parts on
page 24.)
Separation from High Voltage (Wiring Method)
Do not lay the cables for the Sensor together with high-voltage lines
or power lines. Placing them in the same conduit or duct may cause
damage or malfunction due to induction interference. As a general
rule, wire the Sensor in a separate system, use an independent metal
conduit, or use shielded cable.
Work Required for Unconnected Leads
Unused leads for self-diagnosis outputs or other special functions
should be cut and wrapped with insulating tape to prevent contact with
other terminals.
Type of noise Noise intrusion path and countermeasure
Before countermeasure After countermeasure
Common mode noise
(inverter noise)
Common noise
applied between the
mounting board and
the +V and 0-V
lines, respectively.
Noise enters from the noise source through the frame
(metal).
(1) Ground the inverter motor (to 100 Ω or less)
(2) Ground the noise source and the power supply (0-V
side) through a capacitor (film capacitor, 0.22 μF, 630
V).
(3) Insert an insulator (plastic, rubber, etc.) between the
Sensor and the mounting plate (metal).
Radiant noise
Ingress of high-fre-
quency electromag-
netic waves directly
into Sensor, from
power line, etc.
Noise propagates through the air from the noise source
and directly enters the Sensor.
Insert a shield (copper) plate between the Sensor and
the noise source e.g., a switching power supply).
Separate the noise source and the Sensor to a distance
where noise does not affect operation.
Power line noise
Ingress of electromag-
netic induction from
high-voltage wires
and switching noise
from the switching
power supply
Noise enters from the power line. Insert a capacitor (e.g., a film capacitor), noise filter (e.g.,
ferrite core or insulated transformer), or varistor in the
power line.
IM
Sensor
Noise
+V
0V
Inverter
motor
Mounting block
(metal)
IM
Sensor
Insert an insulator.
Inverter motor
+V
0V
Noise
Noise
Mounting block
(metal)
(3)
(2)
(1)
Noise
Sensor
Noise
source
+V
0V
Sensor
Shield plate (copper)
Noise
source
+V
0V
Sensor
Noise
Noise +V
0V
Sensor
Insert a capacitor, etc.
Noise +V
0V
Cable diameter Tensile strength
Less than 4 mm 30 N max.
4 mm or greater 50 N max.
Power line
http://www.ia.omron.com/ C-3
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
Photoelectric Sensors Technical Guide
Power Supply
When using a commercially available switching regulator, ground the
FG (frame ground) and G (ground) terminals.
If not grounded, switching noise in the power supply may cause
malfunction.
Example of Connection with S3D2 Sensor Controller
DC Three-wire NPN Output Sensors
Reverse operation is possible using the signal input switch on the
S3D2.
Mounting
Attachment to Moving Parts
To mount the Photoelectric Sensor to a moving part, such as a robot
hand, consider using a Sensors that uses a bending-resistant cable
(robot cable).
Although the bending repetition tolerance of a standard cable is
approximately 13,000 times, robot cable has an excellent bending
tolerance of approximately 500,000 times.
Cable Bending Destruction Test (Tough Wire Breaking
Test)
With current flowing, bending is repeated to check the number of
bends until the current stops.
The testing conditions of the standard cable and robot cable are
different.
Refer to the values in the above table to check bend-resistant
performance under actual working conditions.
5
2
4
1
6
3
11
8
10
7
12
9
S3D2
Blue 0 V
Black OUT
Brown +12 V
Specimen Standard cable
VR (H) 3 x18/0.12
Robot cable: Strong,
conductive electrical wire
2 x 0.15 mm
2
, shielded
Test
Description/conditions
Bending
angle (θ)Left/right 90° each Left/right 45° each
Bending
repetitions --- 60 bends/minute
Weight 300g 200g
Operation
per bending
(1) through (3) in
figure once
(1) through (3) in
figure once
Bending
radius of
support
points (R)
5 mm 2.5 mm
Result Approx. 13,000 times Approx. 500,000 times
Weight
R
(1) (3)
(2)
θθ
http://www.ia.omron.com/ C-4
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
Photoelectric Sensors Technical Guide
Securing Fibers
The E3X Fiber Unit uses a one-touch locking mechanism. Use the
following methods to attach and remove Fiber Units.
(1) Attaching Fibers
Open the protective cover, insert the fiber up to the insertion mark on
the side of the Fiber Unit, and then lower the lock lever.
<Fiber Using the E39-F9 Attachment>
<Fibers That Cannot Be Free-cut (with Sleeves)>
(2) Removing Fibers
Open the protective cover, lift up the lock lever, and pull out the fibers.
Adjustments
Optical Axis Adjustment
Move the Photoelectric Sensor both vertically and horizontally and set
it in the center of the range in which the operation indicator is lit or not
lit. For the E3S-C, the optical axis and the mechanical axis are the
same, so the optical axis can be easily adjusted by aligning the
mechanical axis.
Optical axis: The axis from the center of the lens to the center of
the beam for the Emitter and the axis from the
center of the lens to the center of the reception area
for the Receiver.
Mechanical axis: The axis perpendicular to the center of the lens.
9mm
Insertion
position
Locked
position
Lock released position
Protective cover
Lock lever
Fiber insertion mark
Fiber
Fiber Unit 9mm
13mm
Note:1.To maintain the fiber characteristics, make sure that the lock
is released before removing the fibers.
2. Lock and unlock the fibers at an ambient temperature of
10 to 40°C.
9mm
13mm
Locked position
Lock released
position
Protective cover
l
1
2
Emitter
Receiver
Incident indicator or Operation indicator
ON OFF
Incident indicator or Operation indicator
Optimum value
ON OFF
Emitter Receiver
Emission beam
Optical axis Optical axis
Mechanical axis
Reception area
http://www.ia.omron.com/ C-5
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
Photoelectric Sensors Technical Guide
Operating Environment
Water Resistance
Do not use in water, in rain, or outside.
Ambient Conditions
Do not use this Sensor in the following locations. Otherwise, it may
malfunction or fail.
(1) Locations exposed to excessive dust and dirt
(2) Locations exposed to direct sunlight
(3) Locations with corrosive gas vapors
(4) Locations where organic solvents may splash onto the Sensor
(5) Locations subject to vibration or shock
(6) Locations where there is a possibility of direct contact with water,
oil, or chemicals
(7) Locations with high humidity and where condensation may result
Environmentally Resistive Sensors
The E32-T11F/T12F/T14F/T81F-S/D12F/D82F and E3HQ can be used
in locations (3) and (6) above.
Optical Fiber Photoelectric Sensors in Explosive Gas
Atmospheres
The Fiber Unit can be installed in the hazardous area, and the
Amplifier Unit can be installed in a non-hazardous area.
<Reason>
For explosion or fire due to electrical equipment to occur, both the
hazardous atmosphere and a source of ignition must be in the same
location. Optical energy does not act as an ignition source, thus there
is no danger of explosion or fire. The lens, case, and fiber covering are
made of plastic, so this setup cannot be used if there is a possibility of
contact with solvents that will corrode or degrade (e.g., cloud) the
plastic.
<Ignition Source>
Electrical sparks or high-temperature parts that have sufficient energy
to cause explosion in a hazardous atmosphere are called ignition
sources.
Influence from External Electrical Fields
Do not bring a transceiver near the Photoelectric Sensor or its wiring,
because this may cause incorrect operation.
Maintenance and Inspection
Points to Check When the Sensor Does Not Operate
If the Sensor does not operate, check the following points.
(1) Are the wiring and connections correct?
(2) Are any of the mounting screws loose?
(3) Are the optical axis and sensitivity adjusted correctly?
(4) Do the sensing object and the workpiece speed satisfy the ratings
and specifications?
(5) Are any foreign objects, such as debris or dust, adhering to the
Emitter lens or Receiver lens?
(6) Is strong light, such as sunlight (e.g., reflected from a wall), shining
on the Receiver?
(7) Do not attempt to disassemble or repair the Sensor under any
circumstances.
Lens and Case
The lens and case of the Photoelectric Sensor are primarily made of
plastic. Dirt should be gently wiped off with a dry cloth. Do not use
thinner or other organic solvents.
The case of the E3S-C is metal. The lens, however, is plastic.
Accessories
Using a Reflector (E39-R3/R37/RS1/RS2/RS3)
During Application
(1) When using adhesive tape on the rear face, apply it after washing
away oil and dust with detergent. The Reflector cannot be
mounted if there is any oil or dirt remaining.
(2) Do not press on the E39-RS1/RS2/RS3 with metal or a
fingernail.This may weaken performance.
(3) This Sensor cannot be used in locations where oil or chemicals
may splash on the Sensor.
M8 and M12 Connectors
Be sure to connect or disconnect the connector after turning OFF
the Sensor.
Hold the connector cover to connect or disconnect the connector.
Secure the connector cover by hand. Do not use pliers, otherwise
the connector may be damaged.
If the connector is not connected securely, the connector may be
disconnected by vibration or the proper degree of protection of the
Sensor may not be maintained.
Others
Values Given in Typical Examples
The data and values given as typical examples are not ratings and
performance and do not indicate specified performance. They are
rather values from samples taken from production lots, and are
provided for reference as guidelines. Typical examples include the
minimum sensing object, engineering data, step (height) detection
data, and selection list for specifications.
Cleaning
Keep organic solvents away from the Sensor. Organic solvents will
dissolve the surface.
Use a soft, dry cloth to clean the Sensor.
Non-hazardous area
Amplifier Unit
Fiber Unit
Sensing object
Hazardous area
http://www.ia.omron.com/ C-6
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
2007.3
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.
In the interest of product improvement, specifications are subject to change without notice.
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if
specifi ed) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR COMMERCIAL
LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR
STRICT LIABILITY.
In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the product.
At the customer's request, OMRON will provide applicable third party certi cation documents identifying ratings and limitations of use that apply to the
products. This information by itself is not suffi cient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety
equipment, and installations subject to separate industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
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.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifi cations and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when signifi cant construction changes are made.
However, some speci cations of the product may be changed without any notice. When in doubt, special model numbers may be assigned to fi x
or establish key specifi cations for your application on your request. Please consult with your OMRON representative at any time to confi rm actual
specifi cations of purchased product.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
ERRORS AND OMISSIONS
The information in this catalog has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent
the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
COPYRIGHT AND COPY PERMISSION
This catalog shall not be copied for sales or promotions without permission.
This catalog is protected by copyright and is intended solely for use in conjunction with the product. Please notify us before copying or reproducing this
catalog in any manner, for any other purpose. If copying or transmitting this catalog to another, please copy or transmit it in its entirety.