OMRON E3S-DC E3S-DC[][] Series Color Mark Photoelectric Sensor Instruction Sheet
Summary
This comprehensive manual guides users through the setup and safe operation of a sophisticated photoelectric sensor, ideal for industrial automation applications. It details advanced features such as IO-Link communication, configurable teaching modes (1-point/2-point), and accurate mark detection capabilities. The guide provides critical precautions—covering everything from proper wiring practices to sensitivity settings—ensuring optimal performance and reliable integration into demanding automated systems.
Page 1 Text Content
PRECAUTIONS FOR CORRECT USE
Settings2
· Note that the water-resistant function is impaired if installing the photoelectric sensor by For E3S-DCP21-IL3/IL2, setting can be performed with IO-Link communication. Color Mark Sensor hitting it with a hammer and so on. Refer to the separate index list · If the Sensor wiring is placed in the same conduits or ducts as high-voltage or high-power
lines, inductive noise may cause malfunction or damage. Wire the cables separately or use a 2-1 Setting and Display Overview 2-2 Operation mode
E3S-DC□□Series shielded cable.
· To extend a cord in the standard I/O mode, use a cable of 0.3mm2 or more and keep the length Operation mode Description Response time (Max.)
[RUN indicator : Green]
100m or less. Keep the length 20m or less if using the sensor in the IO-Link mode. Turns ON while power is supplied. 2-point teaching mode This mode can be suited for identifying 2 colors. 50μs
INSTRUCTION SHEET Setup change
· Apply a screw tightening torque of 2.0N・m or less. Blinks during IO-Link communication. (Enabled as default) The most stable emission color for the detection is
[BANK] Button
Thank you for selecting an OMRON product. This sheet primarily describes precautions · If a commercial switching regulator is used, ground the FG (frame ground) terminal. Changes the BANK setting. automatically set by performing teaching. required in installing and operating the product. [Operation indicator : Orange]
· The Sensor will be able to detect objects 100 ms after the power supply is tuned ON. Start (BANK NO.)
• A specialist who has the knowledge of electricity must treat the product. Turns ON when the mark is 1-point teaching mode This mode can be used suited identifying 1 color 150μs
• Please read this manual carefully, and use it correctly after thoroughly understanding the product. using the Sensor 100 ms or more after turning ON the power supply.If the load and the sensor
detected. (when Pin4 is set as NO) among multiple colors.
• Please keep this manual properly for future reference whenever it is necessary. are connected to separate power supplies,be sure to turn ON the sensor rst.
Judges with 3 colors of RGB.
TRACEABILITY INFORMATION: · Do not press the button with anything sharp such as a screwdriver because it might be
Importer in EU: [7-segment indicator]
Manufacturer:
OMRON Europe B.V. OMRON Corporation, damaged. Displays the BANK No.
Wegalaan 67-69, Shiokoji Horikawa, Shimogyo-ku, Sensitivity Setting (Background)
· Output pulses may occur when the power supply is turned OFF. We recommend that you turn being selected. 2-point teaching mode 1-point teaching mode
NL-2132 JD Hoofddorp, Kyoto. 600-8530 JAPAN [ BKGD] Button
The Netherlands OFF the power supply to the load or load line rst.
Executes the background
The following notice applies only to products that carry the CE mark: [Key lock indicator]
Notice: teaching.
Turns ON when key lock
This is a class A product. In residential areas it may cause radio Press and hold MARK
interference, in which case the user may be required to take adequate setting is activated
and BKGD for 1s or more.
measures to reduce interference. Installation1
[Timer indicator] Turns ON when timer setting is activated
1-1 Dimensions Sensitivity Setting (Mark)
© OMRON Corporation 2016 All Rights Reserved. [MARK] Button “1PT” is
*The connector section can be [1-point teaching mode indicator] “1PT” is lighting.
(Unit:mm)
*The optical axis can be changed by revolved in a range of 90°. Executes the mark teaching. not lighting.
Turns ON when 1-point teaching
swapping the lens and cover.
M12 mode.
CONNECTOR
PRECAUTIONS ON SAFETY 2-3 Teaching ①Detecting if there is a mark
Meanings of Signal Words
Indicates a potentially hazardous situation which, if not avoided, ●2-point Teaching WARNING will result in minor or moderate injury, or may result in serious Set to 2-point teaching mode in advance. injury or death.Additionally there may be significant property damage. There is a mark There is no mark
Warning Indications Short press Short press
15.2 Replacing the lens or cover Mark
(for over 10ms) (for over 10ms)
WARNING
Optical
Optical or or
axis "t" blinking
External input External input
This product is not designed or rated for ensuring safety of persons
either directly or indirectly. Do not use it for such purpose. "t" blinking
5.5 “1PT” is
50 ms~1s 1s~10s 50 ms~1s 1s~10s50 ms~1s
24.8 DIA. (Outer diameter) not lighting.
ON ON Setup completed
Do not use the product with voltage in excess of the rated voltage. DE
OFF OFF "t" blinks at high speed for 3 times.
Excess voltage may result in malfunction or fire. 4-M
50 ms~1s 50 ms~1s 50 ms~1s
Never use the product with an AC power supply. Otherwise,
explosion may result.
2-M ②Detecting only the certain-colored mark
EP TH SIZE 5.
●1-point Teaching (Mark) This is effective when only the background color is changed in a setup change.
Be sure to tighten the external lens until it reaches the chassis. NS . (LE DIA
4. Set to 1-point teaching mode in advance.
0. 0. There is a mark
*Tighten the lens until it reaches the chassis.
Press and hold
PRECAUTIONS FOR SAFE USE Mark
(for over 1s)
OMRON adaptive connector cord: XS5F / XS5W series
XS2F / XS2W series
The following precautions must be observed to ensure safe operation of the product. 50 ms~1s 50 ms~1s 50 ms~1s 1s~10s
or "t" blinking
PIN No. E3S-DCP21-IL3 E3S-DCN21
· Do not install the product in the following locations.
External input ON
E3S-DCP21-IL2 EXT : External input
(1) Locations subject to direct sunlight 3. OFF
+V +V Q : Control output “1PT” is lighting.
50 ms~1s 50 ms~1s 50 ms~1s Setup completed
(2) Locations subject to condensation due to high humidity
EXT * EXT C : IO-Link
(3) Locations subject to corrosive gas "t" blinks at high speed for 3 times.
0V 0V communications
(4) In the place where vibration or shock is directly transmitted to the product. C/Q · Do not use the product in environments subject to ammable or explosive gases. * It can be set as the control output with IO-Link. ③Detecting only the certain-colored background · Do not use the product in any atmosphere or environment that exceeds the ratings.
· Do not pull on the cable with excessive strength. Input/Output Circuit Diagram1-2
●1-point Teaching (Background) This is effective when only the mark color is changed in a setup change.
· Do not attempt to disassemble, repair, or modify the product in any way.
E3S-DCP21-IL3/IL2 E3S-DCP21-IL3/IL2
· Do not use the product with the main unit damaged. Set to 1-point teaching mode in advance.
Standard I/O mode (SIO mode) Standard I/O mode (SIO mode) · Be sure that before making supply the supply voltage is less than the maximum rated supply Using Pin2 as an external input *1 Using Pin2 with a control output *1
There is no mark.
(enabled by default) (set for IO-Link)
voltage. (30V DC) Brown +V1 Brown +V1
· Do not apply any load exceeding the ratings. NPN NPN
*2 *2 Press and hold
· Do not short the load. Otherwise damage or re may result.
(for over 1s)
· Connect the load correctly.
Black C/Q Black C/Q
· Do not use the product under a chemaical or an oil environment without prior evaluation. "t" blinking
· Though this is type IP67, do not use in the water, rain or outdoors. External 10 to 10 to or 50 ms~1s 50 ms~1s 50 ms~1s 50 ms~1s 1s~10s
input 30VDC 30VDC Load Load Load
· Do not use thinner, alcohol, or other organic solvents. Otherwise, the optical properties and EXT/ EXT/ External input ON
White OUT2 PNP White OUT2 PNP OFF
degree of protection may be degraded. Load Load
*3 *3 “1PT” is lighting.
50 ms~1s 50 ms~1s 50 ms~1s 50 ms~1s Setup completed
· When disposing of the product, treat it as industrial waste.
"t" blinks at high speed for 3 times.
· UL Standard Certication 1. Ambient temperature rating marked on the device or in the installation instructions. Blue 0V Blue 0V
④Adjusting the setup using a moving mark without stopping the line
2. The model number of the accessory cable assembly that shall be used: Recognized
*1 Pin2 input/output can be switched with the IO-Link communication command "Switchpoint Pin2".
XS2F-D4 Series and/or Recognized XS2W-D4 Series by Omron. The cable assembly
*2 In case of NPN connection, please connect the load between Pin1 and Pin4.
●Automatic Teaching This is possible by external input or IO-Link only.
model numbers may be individually itemized. *3 In case of PNP connection, please connect the load between Pin3 and Pin4.
Automatic multi-teaching is more stable than automatic single-teaching.
3. External overcurrent protection of 1A for 26AWG, 2A for 24AWG, or 3A for 22AWG wire
E3S-DCP21-IL3/IL2 E3S-DCN21
Set to 2-point teaching mode in advance.
shall be provided for cable protection. IO-Link communications mode(COM mode) 4. When XS2F-D4 (connectors on one end only) cable assembly models are marked per item 2 The mark is passing.
Brown +V1 Brown +V1 Brown +V1
above that have wires (or cores) less than 24AWG (0.2mm2), the instructions shall also 1s~ 10s
Multi-teaching
include that those cables are for connection to terminal blocks and are not for eld splicing.
External input
Black C/Q Black C/Q Black OFF
Teaching time
10 to Teaching is completed when the mark has "t" blinking 30VDC
EXT/ passed seven times within 60s.
Load Load
White OUT2 White DI/DO White EXT 1s~ 10s 50ms~ 1s
Single-teaching Setup completed
“1PT” is External not lighting. ON "t" blinks at high speed for 3 times.
External input
input OFF
Blue 0V Blue 0V Blue 0V 50ms~ 1s Teaching time
Teaching is completed when the mark
IO-Link has Passed one time within 60s. Master
Page Summary Contents For OMRON E3S-DC E3S-DC[][] Series Color Mark Photoelectric Sensor Instruction Sheet
Manual Details
| Brand | Omron |
|---|---|
| Pages | 2 |
| File Size | 806.16 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What precautions should be taken when wiring the sensor cable?
If running wires in the same conduit as high-voltage or high-power lines, use a shielded cable and wire the cables separately to avoid inductive noise damage.
What is the maximum operational length for different modes?
In standard I/O mode, keep extension cords 100m or less; when using IO-Link mode, limit the length to 20m or less.
Can this device be used in high-voltage electrical environments?
Never use the product with an AC power supply, as explosion may result. Users must treat the product specialist knowledge of electricity.
How do I interpret the operation indicator lights?
Green indicates 'RUN' (normal operation); Orange means 'Setup completed'; and a fast blinking "t" signifies 'Excess voltage'.