1
CSM_EE-SX91_DS_E_3_1
Compact Pre-wired Photomicrosensor with Built-in Amplifier (Non-modulated)
EE-SX91
Meeting Customer Needs with Compact
Sensors that Mount with M3 Screws
Both light-ON and dark-ON outputs provided.
A compact size and choice of five models for a wide
range of applications.
Compact NPN and PNP output models.
Mount using M3 or M2 screws.
Indicator is visible in many directions for installation
in any location.
Maximum load current of 100 mA.
Models with connectors simplify wiring and maintenance.
Flexible robot cables are standard on all models.
Be sure to read Safety Precautions on
page 6.
Features
A Compact Size and Choice of Five Models
for a Wide Range of Applications
Select any of five models to minimize the space required.
Compact NPN and PNP Output Models
Both NPN and PNP output models are available for use according to
system requirements.
Maximum Load Current of 100 mA
Output control of up to 100 mA is supported for either NPN or PNP
outputs.
Models with Connectors Simplify Wiring and
Maintenance
Using models with connectors allows wiring to be used as it is, with
no need to replace anything but sensors.
Flexible Robot Cables: Standard on All
Models
Robot Cables are effective for moving parts, and are provided as
standard equipment with all models.
Both Light-ON and Dark-ON Outputs
Both light-ON and dark-ON outputs are provided on all models,
allowing outputs to be switched by simply changing the wiring
according to the application.
Indicator Visible from Many Directions for
Installation in Any Location
The light indicator can be checked from up to four directions.
Mount Using M3 or M2 Screws
The EE-SX91 can be mounted using M3 or M2 screws, so it can
easily replace an existing compact sensor mounted with M2 screws.
EE-SX91
2
Ordering Information
List of Models
Models with Robot Cables
Accessories (Order Separately)
Connector with Robot Cable
Appearance Sensing
method
Sensing
distance
Output
configura-
tion
Indicator
mode
Connecting
method
(Cable
length)
Model
NPN output PNP output
Standard
Through-
beam type
(with slot)
Light-ON
Dark-ON
(2 outputs)
Lit when
light is
incident
Pre-wired
models (1 m) EE-SX910-R 1M EE-SX910P-R 1M
Models with
connectors
(0.3 m)
EE-SX910-C1J-R 0.3M EE-SX910P-C1J-R 0.3M
L-shaped Pre-wired
models (1 m) EE-SX911-R 1M EE-SX911P-R 1M
Models with
connectors
(0.3 m)
EE-SX911-C1J-R 0.3M EE-SX911P-C1J-R 0.3M
F-shaped Pre-wired
models (1 m) EE-SX912-R 1M EE-SX912P-R 1M
Models with
connectors
(0.3 m)
EE-SX912-C1J-R 0.3M EE-SX912P-C1J-R 0.3M
R-shaped Pre-wired
models (1 m) EE-SX913-R 1M EE-SX913P-R 1M
Models with
connectors
(0.3 m)
EE-SX913-C1J-R 0.3M EE-SX913P-C1J-R 0.3M
U-shaped Pre-wired
models (1 m) E-SX914-R 1M EE-SX914P-R 1M
Models with
connectors
(0.3 m)
EE-SX914-C1J-R 0.3M EE-SX914P-C1J-R 0.3M
Type Cable length Model Remarks
Connector with Cable 2 m EE-1016-R Connector with lock, AWG26, 4-core Robot Cable
Infrared light
5 mm
(slot width)
EE-SX91
3
Ratings and Specifications
Applicable Connector
* The response frequency was measured by detecting the following rotating
disk. The response times for light incidence and light interruption are shown in
the timing chart.
Item
Type Standard L-shaped F-shaped R-shaped U-shaped
NPN
mod-
els
Pre-wired models EE-SX910-R EE-SX911-R EE-SX912-R EE-SX913-R EE-SX914-R
Models with con-
nectors EE-SX910-C1J-R EE-SX911-C1J-R EE-SX912-C1J-R EE-SX913-C1J-R EE-SX914-C1J-R
PNP
mod-
els
Pre-wired models EE-SX910P-R EE-SX911P-R EE-SX912P-R EE-SX913P-R EE-SX914P-R
Models with con-
nectors EE-SX910P-C1J-R EE-SX911P-C1J-R EE-SX912P-C1J-R EE-SX913P-C1J-R EE-SX914P-C1J-R
Sensing distance 5 mm (slot width)
Sensing object Opaque: 1.2 × 0.8 mm min.
Differential distance 0.025 mm max.
Light source GaAs infrared LED with a peak wavelength of 940 nm
Indicator Light indicator (red LED)
Supply voltage 5 to 24 VDC ±10%, ripple (p-p): 10% max.
Current consumption 15 mA max.
Control output
Load power supply voltage: 5 to 24 VDC
Load current: 100 mA max.
OFF current: 0.5 mA max.
100 mA load current with a residual voltage of 1.0 V max.
5 mA load current with a residual voltage of 0.4 V max.
Protection circuits Power supply reverse polarity protection; output reverse polarity protection
Response frequency 3 kHz min. (8 kHz average) Light incident: 15 µs average; light interrupted: 40 µs average*
Ambient illumination 1,000 lx max. with fluorescent light on the surface of the receiver
Ambient temperature range Operating: 25 to 55°C
Storage: 30 to 80°C (with no icing or condensation)
Ambient humidity range Operating: 5% to 85%
Storage: 5% to 95% (with no icing or condensation)
Vibration resistance (Destruction) 10 to 2,000 Hz
0.75-mm single amplitude for 2.5 h (15-min periods, 10 cycles) 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 IEC60529 IP50
Connecting method Pre-wired Models (standard cable length: 1 m), Models with Connectors (standard cable length: 0.3 m)
Weight
(packed state)
Pre-wired Models Approx. 17 g
Models with Con-
nectors Approx. 7 g
Mate-
rials
Case/cover Polybutylene phthalate (PBT)
Emitter/receiver Polycarbonate (PC)
Product Connector with Robot Cable
Model EE-1016-R
Item
Appearance
Contact resistance 25 m max.
(at 10 mA DC and 20 mV max.)
Insertion strength 20 N max.
Surplus strength
(housing holding
strength)
15 N min.
Cable length 2 m
Ambient temperature
range 25 to 85°C
Mate-
rials
Housing Nylon
Contact Phosphor bronze
1 mm
2 mm
2 mm
t=0.2 mm
40 µs avg.15 µs avg.
Disk
ON
OFF
ON
OFF
OUT1 output
transistor
OUT2 output
transistor
Light incident
Light interrupted
EE-SX91
4
Engineering Data (Typical)
Sensing Position Characteristics
EE-SX910 EE-SX910 EE-SX911
Repeated Sensing Position Characteristics
EE-SX910
0123456
Dark-ON
Light-ON
Distance d (mm)
Insertion
direction
d
0123456
d
Dark-ON
Light-ON
Insertion direction
Distance d (mm)
0123456
Dark-ON
Light-ON
Insertion
direction
Distance d (mm)
d
3.14 3.16 3.18 3.2
d
Dark-ON
Light-ON
Vcc = 24 V, No. of repetitions: 20, Ta = 25°C
(Differential distance = 0.025 mm max.)
Distance d (mm)
d=±0.002
Note: The data applies to dark status. Operation may be affected by external light
interference or light coming through the sensing object.
EE-SX91
5
I/O Circuit Diagrams
Output
type Model Output transistor
operation status Timing charts Output circuit
NPN
output
EE-SX910-R
EE-SX910-C1J-R
EE-SX911-R
EE-SX911-C1J-R
EE-SX912-R
EE-SX912-C1J-R
EE-SX913-R
EE-SX913-C1J-R
EE-SX914-R
EE-SX914-C1J-R OUT1: Light-ON
OUT2: Dark-ON
PNP
output
EE-SX910P-R
EE-SX910P-C1J-R
EE-SX911P-R
EE-SX911P-C1J-R
EE-SX912P-R
EE-SX912P-C1J-R
EE-SX913P-R
EE-SX913P-C1J-R
EE-SX914P-R
EE-SX914P-C1J-R
Light incident
Light interrupted
(Blue)
OUT2
(White)
OUT1
(Black)
Load 1
Load 2
Main
circuit
1
4
2
3
1
2
3
4
Light
indicator
Brown
5 to 24 VDC
ON
OFF
Light indicator
(red)
ON
OFF
Output 1
transistor
Operates
Releases
Load 1
(e.g., relay)
(Brown)
Load 2
Load 1
1
2
3
4
1
4
2
3
Main
circuit
Light
indicator
5 to
24 VDC
(Blue)
OUT2
(White)
OUT1
(Black)
ON
OFF
Output 2
transistor
Load 2
Operates
Releases
(e.g., relay)
Connector pin
arrangement
for models with
connectors
Connector pin
arrangement
for models with
connectors
EE-SX91
6
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.
Power Supply Voltage
Do not exceed the voltage range
indicated in the specifications.
Applying a voltage exceeding
the specifications or using an AC
power supply may result in
rupture or burning.
•Faulty Wiring
Do not reverse the power supply
polarity. Doing so may result in
rupture or burning.
Do not short-circuit the load. (Do
not connect to the power
supply.)
Doing so may result in rupture or
burning.
Dispose of this product as
industrial waste.
Installation
It is assumed that EE-SX91 Sensors will be built into a device.
These Sensors use non-modulated light and are not equipped to
deal with interference from an external light source. When they are
used in locations subject to external light interference, such as near
a window or under an incandescent light, install them to minimize
the effects of external light interference.
Mount the Sensors securely on a flat surface.
Use M3 or M2.0 screws to secure the Photomicrosensor. (The
stronger M3 screws are recommended. In addition, use flat
washers and spring washers to prevent the screws from loosening.)
Refer to the following table for the correct tightening torque.
If the Sensor is to be used on a moving part, secure the cable
connection point so that it is not directly subjected to stress.
Wiring
Unused Output Lines
Be sure to isolate output lines that are not going to be used.
Connecting to Devices with Voltage Input Specifications
A Sensor with an open-collector output can be connected to a counter
with a voltage input by connecting a resistor between the power
source and output. Select a resistor with reference to the following
example. The resistance of the resistor is generally 4.7 kand its
wattage is 1/2 W for a supply voltage of 24 V and 1/4 W for 12 V.
Example: EE-SX91 Series
Load Resistance of 4.7 k Connected in a Counter
Counter Specifications
The high and low levels are found using the following formulas. The
input device specifications must satisfy both formulas.
High level:
Low level:
Input voltage VL 1.0 V (Residual voltage for 100-mA load
current)
Note: Refer to the ratings of the Sensor for the residual voltage of the load
current.
WARNING
Precautions for Safe Use
Sensor
Brown
Blue
Load
Load
Black
White
Sensor
Brown
Blue
Black
White
+
Load
Load
+
Sensor
Brown
Blue
+
Black
White
Load
d short-circuit)
(Loa
Load
ck
(
Precautions for Correct Use
Screw diameter Tightening torque
M2.0 0.15 N·m max.
M3 0.54 N·m max.
Input impedance 5.6 K
Voltage judged as high level (input ON) 4.5 to 30 VDC
Voltage judged as low level (input OFF) 0 to 2 VDC
SW
main
circuit
Tr
+Vcc
EE-SX91 series Counter (Voltage input type)
Insert a resistor
Output
0 V 0 V
R
24 V
Power supply
Z
Input terminal (CP)
(Input impedance:
approx. 5.6 k)
Input voltage VH = R+Z
ZVcc = 4.7 k+5.6 k
5.6 k × 24 V = 13 V
Load current Ic = R
Vcc = = 5.1 mA 100 mA
R
24 V
EE-SX91
7
Other Precautions
Do not disconnect the Connector from the Sensor when power is
supplied to the Sensor, or Sensor damage could result.
Do not install the Sensor in the following places to prevent
malfunction or trouble:
1. Places exposed to dust or oil mist
2. Places exposed to corrosive gas
3. Places directly or indirectly exposed to water, oil, or chemicals
4. Outdoor or places exposed to intensive light, such as direct
sunlight
Be sure to use the Sensor under the rated ambient temperature.
The Sensor may be dissolved by exposure to organic solvents,
acids, alkali, or aromatic hydrocarbons, aliphatic chloride
hydrocarbons causing deterioration in characteristics. Do not
expose the Sensor to such chemicals.
Make sure the total length of the power cable connected to the
product is less than 10 m.
EE-SX91
8
Dimensions (Unit: mm) Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.
Photomicrosensors
6
24 Optical axis
Optical axis
Sensing window
3
EE-SX910-R
EE-SX910-C1J-R
300
17.4
1.2 0.8
5.8
Indicator window
5
3.7
13.4
8.3
2.7
5
4.6
dia.
(2)
2.3
18.7
Two, 3.2 dia.
6.5
12 8
Terminal
1
2
3
4
+V
OUTPUT 2
0 V
OUTPUT 1
1234
Connector Terminal Arrangement
Robot cable of 2.8 dia., 4
cores, (0.15 mm2 with 0.8-
mm dia. insulator);
Standard length: 1 m
Specifications
EE-SX910-R
EE-SX910P-R
EE-SX910-C1J-R
EE-SX910P-C1J-R
Connector Terminal Arrangement
1234
Optical axis
Optical axis
Indicator window
Sensing
window
(2)
10
6.9
3.7
2
3
5
0.8
1.75
1.6 3.2
8
612 300
17.4
6
1.2
13.4
4
12
6.5
EE-SX911-C1J-R
EE-SX911-R
(Four, R1.6)
Robot cable of 2.8 dia., 4 cores,
(0.15 mm2 with 0.8-mm dia.
insulator);
Standard length: 1 m
Terminal
1
2
3
4
+V
OUTPUT 2
0 V
OUTPUT 1
Specifications
EE-SX911-R
EE-SX911P-R
EE-SX911-C1J-R
EE-SX911P-C1J-R
Connector Terminal Arrangement
Sensing window
Optical axis
Optical axis
Indicator window
EE-SX912-C1J-R
EE-SX912-R
1.95 1.6
3.2 2 dia.
4.6 dia.
3.7
11.7
6.2
12 8
5
13.4
3
5
(2)
4
1.5
6.7
1.2
2.3
0.8
300
17.4
8.3
6.5
(R1.6)
6
Robot cable of 2.8 dia., 4 cores,
(0.15 mm2 with 0.8-mm dia.
insulator);
Standard length: 1 m
1234
Terminal
1
2
3
4
+V
OUTPUT 2
0 V
OUTPUT 1
Specifications
EE-SX912-R
EE-SX912P-R
EE-SX912-C1J-R
EE-SX912P-C1J-R
Indicator window
Optical axis
Optical axis
Sensing window
5
13.4
3.7
2 dia. 2.3
4.6 dia.
812
1.5 (2)
6.7
4
6
300
11.7
3
5
6.2
3.2
1.6 1.95
1.2
0.8
17.4
EE-SX913-C1J-R
EE-SX913-R
(R1.6)
8.3 6.5
1234
Robot cable of 2.8 dia., 4 cores,
(0.15 mm2 with 0.8-mm dia.
insulator);
Standard length: 1 m
Connector Terminal Arrangement
Terminal
1
2
3
4
+V
OUTPUT 2
0 V
OUTPUT 1
Specifications
EE-SX913-R
EE-SX913P-R
EE-SX913-C1J-R
EE-SX913P-C1J-R
300
17.4
Two, 3.2 dia.
Indicator window
Indicator window
Sensing window
Optical axis
Optical axis
16
6.5
11.5
13.4
5
3.7
(2) 1.2
0.8
63
8.3 8.3
8
EE-SX914-R
EE-SX914-C1J-R
1234
Connector Terminal Arrangement
Robot cable of 2.8 dia., 4 cores,
(0.15 mm2 with 0.8-mm dia.
insulator);
Standard length: 1 m
Terminal
1
2
3
4
+V
OUTPUT 2
0 V
OUTPUT 1
Specifications
EE-SX914-R
EE-SX914P-R
EE-SX914-C1J-R
EE-SX914P-C1J-R
2
10
5.8 8 10 7162,000
A
B
C
D
Brown
White
Blue
Black
Terminal Arrangement
+
OUTPUT 2
OUTPUT 1
1
2
3
4
Robot cable of 2.8 dia., 4 cores,
(0.15 mm2 with 0.8-mm dia.insulator);
Standard length: 2 m
Accessories (Order Separately)
Connector with Robot Cable
EE-1016-R
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 specified)
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 the 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 products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient 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 PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications 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 significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
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.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2008.11
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2008 All Right Reserved.