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Incident light level setting: The larger incident level of the Step 1 and 2 values is    
                                           adjusted to the power tuning level.
Threshold setting: Set to the middle between the Step 1 and 2 incident light levels.

© 

OMRON Corporation  2011  All Rights Reserved.

Smart Fiber Sensor

E3X-HD

PRECAUTIONS ON SAFETY

Meanings of Signal Words

Warning Indications

PRECAUTIONS FOR SAFE USE

PRECAUTIONS FOR CORRECT USE

Checking the Package Content

INSTRUCTION SHEET

PRECAUTIONS

Indicates a potentially hazardous situation which, if not avoided, 
may result in minor or moderate injury or in property damage.

• Amplifier Unit: 1      • Instruction Sheet (this sheet): 1 (Japanese, English and Chinese)

Do not use the product with voltage in excess of the rated voltage.
Excess voltage may result in malfunction or fire.

Never use the product with an AC power supply. Otherwise, 
explosion may result.

 Mounting on DIN Track

Detect for Workpiece Presence/Absence

Detect for Workpiece Presence/Absence

Let the hook on the Amplifier Unit's Fiber Unit
connection side catch the track and push the 
unit until it clicks.

■ 

Removing from DIN Track

Push the unit in the direction 1.

2-point Tuning

Maximum Sensitivity Tuning

 Mounting Amplifier Units in Group 

   (Connector Type Models)

 Use Fiber Cutter

Insert a Fiber Unit into a fiber cutter hole.

 Press down the blade at a single
 stroke to cut the Fiber Unit.

Fiber Cutter E39-F4 

(Provided with 

 the Fiber Unit)

Thin-diameter Fiber 

Attachment: E39-F9

Thin-diameter 

Fiber Unit Hole x 2

Protective Cover

Fiber Unit

Standard Fiber Unit 

Hole  (dia. 2.2 mm) x 3

 Mount Fiber Unit

Open the protective cover.

Raise the lock lever.

Insert the Fiber Unit in the fiber 
unit hole to the bottom.

Return the lock lever to the original
position and fix the Fiber Unit.

Press       button with a workpiece in the detection area.

 Press       button again without a workpiece in the detection area.

Through-beam: Workpiece is present

Reflective: Workpiece is absent                                                 

Press     button.

1.

Settings

2

Installation

1

DIN Track

Tighten the screw while pressing the End Plate.

Fiber Unit Connection Side Hook

1

2

Mount the Amplifier Units one at a time onto the 
DIN track and push them until they click.

2

1

3

Single Core

Multi Core

 

1pnt

 

2pnt

 

1.

1.

1.

1.

1.
2.
3.

4.

2.

3.

Slide the Amplifier Units in the direction 2.

2.

1.

2.

Workpiece

[L/D Indicator] 

Displays 
Light ON/Dark O setting.

[OUT Indicator]

Turns ON when Output is 
ON.

Green Digital Display

Red Digital Display

[DPC Indicator]

[ST Indicator]

Turns ON when Smart Tuning is in progress.

Threshold Level

Incident Light
 Level

Minute Threshold 

Adjustment

The green digital value changes.

[UP/DOWN

Button

Mode Change

Switches between SET 
mode and RUN mode by 
a long press (3 seconds 
or longer) of the key.

[

MODE

]

Button

Output Switch

[

L/D

Button

A single press switches between 
Light ON/Dark ON. [L/D] Indicator 
changes.

A single press each for setting 
with/without a workpiece. 
[ST Indicator] turns ON.

Sensitivity Setting

[    ] 

Button

Workpiece

Workpiece

Protective Label

Power Supply Connecting Terminal

Setting is Completed

Setting is Completed

When mounting a coaxial reflective 
Fiber Unit, insert the single-core 
Fiber Unit to the upper hole (Emitter 
side) and the multi-core Fiber Unit to 
the lower hole (Receiver side).

1-3

Mounting Fiber Unit

2-1

Setting and Display Overview

2-2

Switching Control Output

Smart Tuning [Easy Sensitivity Setting]

2-3

1-1

Dimensions

1-2

Mounting the Amplifier Unit

L/D

1.

Hold       button for 3 seconds or longer with/without workpiece as shown below. 
Release the button when [             ] is displayed.

The red digital display changes                         .

Incident light level setting:  The incident level in Step 1 is adjusted to "0".
Threshold setting:  The value is set to approx. 7% of the incident light level of 1.
                               If the incident light level of 1 is smaller during long distance 
                               detection, the minimum value by which an output is correctly 
                               turned ON will be set.

2

4

Lock Lever

Lock

Release

 Lift it up in the direction 2.

2.

Hold for 3 seconds or longer

Setting Reset

Key Lock

Zero Reset

Step 1 and Step 2 can be reversed.

Turns ON when Dynamic Power Control is
effective.

5.1

9

71.8

20.5

33.4

37.9

20.5

37

12.7

13

4.5

5.7

21.7

5.2

4.2

27.1

170°

 (Max.)

146.9 (Max. with the protective cover open)

104.7

(Max. with the protective cover open)

<Wire-saving Connector Model>

Unit: mm

<Pre-wired Model>

With an thin-diameter fiber 

attachment (E39-F9) 

Blue: 0 V

Brown: 12 to 24 VDC
Black: Output

10

Use E3X-CN11 (Master connector) for the master 
Amplifier Unit and E3X-CN12 (Slave connector) for 
the slave Amplifier Units. 

Insert a standard Fiber Unit up to the
position in which it is cut; and 
a thin-diameter Fiber Unit to the
bottom of the hole.

 Refer to "     Convenient 

 Setting Features".

Dimensions in parentheses () indicates the ones with related components.

Refer to "1-1. Dimensions" or check the side of
the unit for wire color and role indications.

Use End Plates (PFP-M: separately sold) at the both
ends of the grouped Amplifier Units to prevent them
from separating due to vibration or other cause.

4.

Tighten the screw on the End Plates using a driver.

3

4

Up to 16 Amplifier Units can be mounted in a group.

2

1

Power Tuning

When Light

 Level is 

Saturated

Reflective: Set to "Light ON" to turn the
output ON with a workpiece in the detection area.

[L/D Indicator]  turns          ON.

Through-beam: Set to "Dark ON" to turn the 
output ON with a workpiece in the detection area.

[L/D Indicator]  turns

   

ON.

Series

+ : Press both
   : Press both in sequence

Under environments such as vibration, use an end plate 
even with a single amplifier unit.

Thank you for selecting an OMRON product. This sheet 
primarily describes precautions
required in installing and operating the product.

• A specialist who has the knowledge of electricity must treat 

the product. 

• Please read this manual carefully, and use it correctly after 

thoroughly understanding the product. 

• Please keep this manual properly for future reference 

whenever it is necessary.

CAUTION

The following precautions must be observed to ensure safe operation of the Sensor.
• Do not use the Sensor in environments subject to flammable or explosive gases.
• Do not use the Sensor in environments subject to exposure to water, oil, chemicals, etc.
• Do not install the Sensor in environments subject to intense electric field or ferromagnetic field.
• Do not attempt to disassemble, repair, or modify the Sensor Unit in any way.
• Do not apply voltages or currents that exceed the rated ranges.
• Do not use the Sensor in any atmosphere or environment that exceeds the ratings.
• Do not miswire such as the polarity of the power supply.
• Connect the load correctly.
• Do not short both ends of the load.
• Do not use the Sensor if the case is damaged. 
• When disposing of the Sensor,treat it as industrial waste.
• Burn injury may occur. The Sensor surface temperature rises depending on application conditions, such as the 

ambient temperature and the power supply voltage. Use caution when operating or cleaning the Sensor.

• High-Voltage lines and power lines must be wired separately from this product. Wiring them together or placing 

them in the same duct may cause induction, resulting in malfunction or damage.

• When setting the Sensor, be sure to check safety such as by stopping the equipment.

2-2.4 dia.

• Do not install the Sensor in the following locations.

(1) Locations subject to direct sunlight

(2) Locations subject to condensation due to high humidity

(3) Locations subject to corrosive gas

(4) Locations subject to vibration or mechanical shocks exceeding the rated values

• Use an extension cable with a minimum thickness of 0.3 mm2 and less than 100 m long.

• Do not apply the forces on the cord exceeding the following limits:

Pull: 40N; torque: 0.1N·m; pressure: 20N; bending: 3 kg

• The Sensor is ready to operate 200 ms after the power supply is turned ON. If the Sensor and load are 

connected to power supplies separately, turn ON the power supply to the Sensor first.

• When using a connector type product, place a protective label (provided with the E3X-CN series 

connectors) on the power supply connecting terminals that are not used, to prevent electric shock or short 

circuit.

• Output pulses may occur when the power supply is turned OFF. Turn OFF the power supply to the load 

or load line first.

• Excessive incident light cannot be sufficiently handled by the mutual interference prevention function 

and may cause malfunction. To prevent this, set a higher threshold level.

• Make sure that the power supply is turned OFF before connecting, separating or adding Amplifier Units.

• Do not pull or apply excessive pressure or force (exceeding 9.8N) on the Fiber Unit when it is mounted 

on the Amplifier Unit.

• The E3X-MC11-SV2 and E3X-MC11-S Mobile Consoles cannot be used.

• Mutual interference prevention does not function among the E3X-DA-N/SD/NA amplifiers. It functions 

among E3X-DA-S/MDA models.

• The E3X-DRT21-S, E3X-CRT and E3X-ECT Communication Units cannot be used.

• Always keep the protective cover in place when using the Amplifier Unit.

• Dor not use thinner, benzine, acetone, and lamp oil for cleaning.

L/D

MODE

UP/DOWN

UP

MODE

Incident light level setting: Adjust the max. incident light level on Step 1 as the power tuning level.

Threshold setting: Set to the middle between max. and min. incident light levels on Step 1.

Incident light level setting: The Step 2 incident level is adjusted to half the power tuning level.

Incident light level setting: The Step 2 incident light level is adjusted to the 

power tuning level.
Threshold setting: Set to the value obtained by [Incident Level at Step 2 x 
Percentage Tuning Level + Incident Level at Step 2].

Adjust for Moving Workpiece without Stopping Line

Determine Workpiece Position

Detect Transparent or Small Workpiece

 

(Set Threshold by incident light level percentage)

Full Auto Tuning

Position Tuning

Percentage Tuning

Place the workpiece at the desired position and hold        button.

Smart Tuning Error

Press            button to adjust the threshold level.

 

 

per

1.

2.

1.
2.

1.

Press         button without a workpiece in the area.

Turn ON Percentage Tuning in SET mode.
Press       button without a workpiece in the area.

 

UP/DOWN

Setting is Completed

Setting is Completed

Error / Display / Cause

Remedy

Error Origin Tuning Type

2-point Tuning
Full Auto Tuning
Positioning Tuning

All

Tuning other than 
Maximum Sensitivity
Tuning

The light level difference 

between Points 1 and 2 are 

extremely small.

Incident light level is too 
high.

Incident light level is too low.

Near Error

Over Error

Low Error

2-4

The red digital display changes                       .

Hold for 3 seconds or longer

The threshold level becomes higher.

The threshold level becomes lower.

 Refer to "     Detailed Settings".

 Change the detection function mode to a slower 

  response time mode.

 Narrow the emitter and receiver distance (Through-beam)

 Mount the sensor closer to the workpiece (Reflective)

 Enhance the power tuning level.

 Use a thin-diameter fiber.

 Widen the emitter and receiver distance (Through-beam)

 Distance the sensor from the workpiece (Reflective)

 Decrease the power tuning level.

 Narrow the emitter and receiver distance (Through-beam)

 Locate the sensor closer to the workpiece (Reflective)

Hold the key for high-speed level adjustment.

1pnt

No Smart Tuning other than Power Tuning can be used if Percentage Tuning is set.

Minute Adjustment of Threshold Level

Threshold setting: Set to the same value as the Step 2 incident level. 

 Refer to "     Detailed Settings" to change the powr tuning level.

err

err

err

Setting is Completed

Workpiece

 

 

Hold the      button without the presence of a workpiece, and pass the workpiece 
through while [       ] -> [        ] -> [        ] is displayed in red digital.
(Keep holding the        button while the workpiece passes through, and hold 7 
seconds or longer until [        ] is displayed in red digital. After the workpiece passes 
through, release your finger from the        button.)

1.

Hold for 7 seconds or longer

The adjustment range of smart tuning is approx. 20 to 1/100 times. When selecting Giga Mode as 
detection function, the range will be approx. 2 to 1/100 times due to the large initial value.

<M8 Connector Model>

1

2

3

4

12.7

11.2

* 2 1 9 2 1 8 5 - 3

*

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