background image

(2/2) 

Type 

Connection method 

 

Supply voltage 

Power consumption 

Control output 

 

Timer 

Timer time 

Differential detection mode 

Fine positioning 

Mutual interference 

prevention 

 I/O settings 

Response time  

Advanced, twin-output models

Prewired

E2C-EDA11
E2C-EDA41

Separate 

connector

*1

E2C-EDA6
E2C-EDA8

Advanced, external-input models Communication unit

connection model *3

E2C-EDA0

Output setting (channel 2 output, 

area output, self diagnosis output, 

or disconnection output)

External input setting (teaching 

method, fine positioning, zero reset, 

or synchronous detection)

Output setting

(2CH output)/area output

/self-diagnosis output)

Prewired

E2C-EDA21
E2C-EDA51

Separate 

connector

*1

E2C-EDA7
E2C-EDA9

12 to 24 VDC±10%

ripple(p-p) 10%max.

NPN
PNP

1,080mW max. (45mA max. at 24 VDC)

Open collector (26.4 VDC max.);

Load current: 50mA max.; residual voltage: 1 V max.

OFF, OFF-delay, or one-shot

1 ms to 5 s

Supported
Supported

Supported (intermittent oscillation system)

*2

response time = (number of Amplifier Units + 1)×15 ms 

The number of setting : 2 to 5

Power supply 

connector

Protector seal

Setting the Mode

Key Operations

Reading Displays

SET

Mode

Main display (red)

Sub-display (green)

RUN
(See note.)

SET

Select to set detection conditions, to teach the threshold value, to set initializing, etc.

Mode

Description

RUN

Note: The information that appears on the displays can be set using the display switch 
          function. Refer to 

5. Detailed Settings. 

Note: Refer to 

4.Basic settings for the setting method.

UP key

Increases the threshold.

Depends on the setting.

Executes teaching.

Changes the setting forward.

Depends on the setting.

Executes teaching.

Changes the setting in reverse.

Decreases the threshold.

Depends in the MODE key setting (See note.)

Executes positioning teaching(default setting).

Teaching with and without a workpiece.

Executes fine positioning.

Executes a zero reset.

Switches the function to be set on the 

display.

DOWN key

MODE key

Key

Function

RUN mode

SET mode

NO

NC

Adjusting the sensitivity (as Required)

1

2

Setting the Operation Mode

The setting method depends on the type of Amplifier Unit.

Twin-output model

Type

Setting method

External-input model

NO(normally-open)
(default) 

Selection

Description

NC(normally-close)

RUN

SET

Switch to RUN mode.

Tuning completed and previous display returns.

Main Display

Press the MODE key for at 
least 3 seconds.

Fine positioning target value

FP 

During fine 

positioning

Progress bar

FP

Display alternates 
at a fixed interval.

   Lit when the output is ON.

  Twin-output Models: Lit when the output for channel 1 is ON.

  Displays the detection level or the function name.

  Twin-output Models: Lit when the output for channel 2 is ON.

  External-input Models: Lit when fine positioning is set.

  Displays supplemental detection information, the setting of a function, etc.

  Used to switch the mode.

  Twin-output Models: Used to select the channel to display or set.

  External-input Models: Used to select normally-open or normally-close operation

  Used to change the display, set functions, etc.

Setting Errors

    An error has occurred if one of the following display appears the progress bar is displayed.

Over Error

FP

OVER

Switch to RUN mode

Bottom Error

FP

BOTM

FP

OFF

RUN

SET

Flashes twice

Flashes twice

Timeout Error

FP

TOUT

Flashes twice

Threshold 

value

NEAR

TECH

----

Setting Thresholds

Setting Errors

Switch to SET mode.

NEAR

OVER

RUN

SET

The sub-display will flash.

Teaching completed and previous display returns.

No-workpiece Teaching

The threshold value that was set will flash twice.

Do one of the following and then repeat the operation

Adjust the Head to decrease the detection level.

Execute fine positioning.

Press the UP or DOWN key.

Press the UP or DOWN key for at least 3 seconds.
A detection level and a detection margin value are displayed.

3

5

When the UP or DOWN key is pressed to change the threshold value, the threshold 
value will be displayed on the sub-display regardless of the display switch setting. 
The information set for the display switch setting will return approximately 5 seconds 
after the threshold is changed.

If DIFF (differential operation) is set for the detection method, the threshold value 
will be set to half of the difference between the two measured values.

Threshold 

value

Threshold 

value

2PNT

TECH

Detection 

level

Detection 

level

----

Detection 

margin value

 Detection 

margin value

4

The information set for the display switch will be displayed. 
(The default setting is for the detection level and the threshold value.)

Sensor head

ON point

Sensor head

Without a workpiece

Detection 

level

Threshold 

value

Adjust the threshold value with the UP and DOWN keys.

Increases the threshold value.

Decreases the threshold value.

Switch to SET 
mode.

RUN

SET

The sub-display 
will flash.

Teaching With and Without a Workpiece

Positioning Teaching

Position a workpiece 
and press the 
UP or DOWN key.

Switch to RUN mode.

RUN

SET

Manually Setting Threshold Values

PPT

Threshold

value

Switch to SET 
mode.

RUN

SET

The threshold 
value that was set 
will flash twice.

Teaching completed and 
previous display returns.

Press the UP or DOWN 
key for at least 3 seconds.

Please observe the following precautions for safe use of the product.

1) Do not use the Amplifier Unit in environments subject to flammable or explosive gases.

2) Do not use the Amplifier Unit in environments subject to exposure to water, oil, chemicals, etc.

3) Do not attempt to disassemble, repair, or modify the Amplifier Unit in any way.

4) Do not apply voltages or currents that exceed the rated ranges.

5)  Wire the Amplifier Unit correctly, e.g., do not reverse the polarity of the power supply.

6) Connect the load correctly.

7) Do not short both ends of the load.

8) Do not use the Amplifier Unit if the case is damaged.

9)  When disposing of the Amplifier Unit, treat it as industrial waste. 

1. Ratings and Specifications

3. Basic Operating Information

Please observe the following precautions to prevent failure to operate, malfunction, or undesirable 
effects on product performance.

1)  Wire the Amplifier Unit separately from power supply or high-voltage lines. If the Amplifier Unit 

wiring is wired together with or placed in the same duct as high-power lines, inductive noise may 

cause operating errors or damage the Amplifier Unit.

2)  Do not extend the cable to more than 30 m, and use a wire size of 0.3 mm

2

 or larger for the extension cable.

3)  The Amplifier Unit is ready to operate 200 ms after the power supply is turned ON. If the Amplifier Unit and load are 

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

      Please turn on the power supply at the same time when you connecting use the Amplifier Units with cables.

       Mutual interference prevention might not operate normally or mobile console might  not be able to be used 

when the difference between connected Amplifiers at the power supply turning or time is 30ms or more.

4)  Always keep the protective cover in place when using the Amplifier Unit.
5) When using a connector model, 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.

6) When using a communication unit connection model, place a protective cap 

(provided with the E3X-ECT/CRT communication unit ) on the connecting 
terminals that are not used, to prevent electric shock or short circuit.

7) When connecting or removing the communication unit connection 

model, make sure that the connecting part is not slanted.

8)  Always turn OFF the power supply before connecting or disconnecting Sensor 

Heads, joining or separating Amplifier Units, or adding Amplifier Units.

9)  If the data is not written to the EEPROM correctly due to a power failure or 

static-electric noise, initialize the settings using the keys on the Amplifier Unit.

10)  Using a Mobile Console

 

(The communication unit connection 

model cannot use a mobile console.)
Use the E3X-MC11-SV2 Mobile Console for the E2C-EDA-series Amplifier Units. Other Mobile 
Consoles, such as the E3X-MC11,E3X-MC11-S, cannot be used.

11)   Optical communications are not possible with an E3X-DA-N Amplifier Unit.
12)   Depending on the application environment, time may be required for the detection level to stabilize after the power supply is turned ON.
13)  Output pulses may occur when the power is interrupted and so turn OFF the power to the load or 

load line before turning OFF the power to the Sensor.

14) The Sensor Head of E3C-LDA cannot be used. It may damage, if it connects.
15) When mutual interference prevention is confirmed, the execution time of fine positioning becomes long.
16) Do not use thinners, benzine, acetone, or kerosene for cleaning the  Amplifier Unit. 
17) A disconnection output may be rarely outputted under the large installation conditions of a detection level also except disconnection.

 

Confirming the Package Contents

  

Amplifier Unit: 1

    

 Instruction Sheet (this sheet): 1

Refer to 

5.Detailed Settings Detection Method

Operation/Storage: 35 to 85 %RH (with no condensation)

10 to 55 Hz, 1.5mm double amplitude 2 hours each in X, Y, and Z directions

The mode is set using the SET/RUN switch. Set this switch according to the operation to be performed.

Teaching is performed in the state where a workpiece is in an ON 
point. A detection level is set up as a threshold value.

Teaching is performed in the state where there is no workpiece.
It sets up about +6% of a detection level as a threshold value. It is stabilized and a very small 
difference can be detected.

If DIFF(differential operation) is set for the detection method, the threshold value will be set 
to the minimum value above the detection level without a workpiece that will enable stable 
detection.

Teaching can be performed twice, once with and once without a workpiece, and the value between 
the two measured values is set as the threshold. 

In the case of a 

Method 2

, please check that a setup of a "MODE key setting" function is 

[2PNT](teaching with and without a workpiece) in advance. Refer to 

5.Detailed Settings.

The operation keys are used to switch the displays and set detection conditions. The functions of the 
keys depend on the current mode.

The information displayed on the main display and sub-display depends on the current mode. For the 
default settings, the RUN mode displays will appear when the power supply is turned ON for the first time.

Select either normally-open or normally-close operation.

Fine positioning can be used to adjust the detection level that is currently being received to the fine 
positioning target value (1,500). Before executes fine positioning, always secure the workpiece and 
Sensor Head and be sure that the detection level is stable. 

Confirm that the MODE key setting is FP(fine positioning) in advance.
The default is "PPT" (positioning teaching). Refer to 

5. Detailed Settings.  

Teaching cannot be performed when DIFF(differential operation) is set as the detection 
method.

4. Basic Settings

The output will turn ON when the detection level is above the threshold.
If DIFF (differential operation) is set for the detection method, the output will turn 
ON when an edge is detected.

Set as the operation mode in SET mode.
Refer to 

5. Detailed Settings. 

Set using the operation mode selector.

The output will turn ON when the detection level is below the threshold.
If DIFF (differential operation) is set for the detection method, the output will turn 
OFF when an edge is detected.

Clearing method

Method 1

Method 2

Method 1

Method 2

PPT

Threshold

value

Switch to RUN 
mode.

RUN

SET

The threshold 
value that was set 
will flash twice.

Teaching completed and 
previous display returns.

Press the MODE key for 
at least 3 seconds.

Setting method

Setting method

Setting method

Setting method

In the case of a 

Method 2

, please check that a setup of a "MODE key setting" function is 

[PPT](positioning teaching) in advance. Refer to 

5.Detailed Settings.

Workpiece

Workpiece

TECH

----

Switch to RUN 
mode

RUN

SET

2PNT

Setting method

A threshold value can be set manually.

A detection margin 
level can check the 
margin of the present 
detection level to the 
variation in a detection 
level with a workpiece.

A detection margin 
level can check the 
margin of the present 
detection level to the 
variation in a detection 
level with a workpiece.

Remove the 
workpipece and 
press the UP or 
DOWN key.

The threshold 
value that was set 
will flash twice.

The threshold 
value that was set 
will flash twice.

Remove the 
workpiece and 
press the MODE 
key for at least 3 
seconds.

The sub-display will 
flash.

Position a workpiece 
and press the MODE 
key for at least 3 
seconds.

Teaching completed and 
previous display returns.

Teaching completed and 
previous display returns.

Display alternates 

at a fixed interval.

Display alternates 

at a fixed interval.

Groups of 1 to 2 Amplifiers: -10

to 55

     Groups of 3 to 5 Amplifiers: -10

 to 50

Groups of 6 to 16 Amplifiers: -10

 to 45

  Groups of 17 to 30 Amplifiers: −10°C to 40°C

Combination with EDR6-

Groups of 3 to 4 Amplifiers: -10

 to 50

     Groups of 5 to 8 Amplifiers: -10

 to 45

Groups of 9 to 16 Amplifiers: -10

 to 40

℃  

Groups of 17 to 30 Amplifiers: −10°C to 35°C

Setting Errors

An error has occurred if any of the following is display when the UP or DOWN key is pressed 
without a workpiece.

Do one of the following and then repeat the operation

Adjust the Head to decrease the detection level.

Execute fine positioning.

Do one of the following and then repeat the operation

Adjust the Head to increase the detection level.

Execute fine positioning.

2PNT

OVER

2PNT

LO

Flashes twice

Flashes twice

Flashes twice

A zero point is registered. (zero reset)

Switch to RUN mode.

This level difference 

is judged.

This level difference 

is judged.

Zero reset execution

Zero reset execution

Switch to RUN mode.

Zero reset is 
cleared.

RUN

SET

RUN

SET

Detection 

level

Threshold 

value

Detection 

level

Threshold 

value

Zero reset cannot be performed when DIFF(differential operation) is set as the 
detection method.

The standard position of a workpiece is registered as "detection level =0", and it judges to the amount of 
change of a detection level. When there is change of the standard position of a workpiece or change of 
the detection level by the operating condition, detection stabilized when performing zero reset can be 
performed.
Execution of zero reset shifts to "0" the detection level currently displayed on the main display. The 
threshold value currently displayed on the sub display is not shifted.
Please set "a MODE key settings" as "0RST" in advance. The default is "PPT" (positioning teaching).
Refer to 

5.Detailed Settings.

Setting method

Clearing method

Workpiece

Next workpiece

© 

OMRON Corporation  2004  All Rights Reserved. 

INSTRUCTION SHEET

Proximity Sensors with Separate Digital Amplifier
Amplifier Units

E2C-EDA

□□

PRECAUTIONS FOR SAFE USE

PRECAUTIONS FOR CORRECT USE

Operation

Storage

Model
number

Ambient 
temperature

Displays the detection level,* function name, 
or other information depending on the key 
operation. 
*The detection level will be displayed even if 
DIFF (differential operation) is set for the 
detection method.

For the default setting, the current 
detection level will be displayed. 
The change in the detection level will be 
displayed when DIFF (differential 
operation) is set for the detection mode.

Displays threshold value* or the setting of the 
function displayed on the main display depending 
on the key operation. 
*The threshold value for the change in the 
detection level will be displayed if DIFF (differential 
operation) is set for the detection method.

For the default setting, the current threshold 

value will be displayed. 

The threshold value for the change in the 

detection level will be displayed if DIFF 

(differential operation) is set for the detection 

method.

A progress bar will appear 
on the sub-display one 
digit at a time.(Release the 
MODE key when the 
progress bar appears.)

It is the error for the present workpiece position having been too far to the 
fine positioning possible range. It is adjusted by the maximum sensitivity. 
The fine positioning possible range is 50 to 150% of measurement range.

It is the error for the present workpiece position having been too near to the 
fine positioning possible range. It is adjusted by the minimum sensitivity. The 
fine positioning possible range is 50 to 150% of measurement range.

An error occurred because the detection level was not stable during fine 
positioning.
Make sure that the workpiece and Sensor Head are secured and retune 
the sensitivity.

Hold down the MODE key and press the DOWN key for at least 3 seconds. 
Note: Press the DOWN key right after pressing the MODE key.

The sub-display will flash twice and fine positioning will be cleared.

Press the MODE key for at 

least 3 seconds.

The display of a detection 

level is fixed.

The DOWN key is pushed 3 

seconds or more, pushing 

the MODE key. Press the 

DOWN key right after 

pressing the MODE key.

Zero reset is 

performed and a 

detection level is 

shifted to "0."

UP

SET

RUN

1

2

DOWN

MODE

NO

NC

Operation indicator

E2C

Twin-output Models : Operation indicator for channel 2

    External-input Models : Fine positioning indicator

Twin-output Models : Channel selector

    External-input Models : Operation mode selector

Main display (red)

Sub-display (green)

Operation keys

SET/RUN switch

2. Nomenclature

*1: When using individually or as a master, obtain the E3X-CN21 Master Connector (4-conductor), and when 

using as a slave, obtain the E3X-CN22 Slave Connector (2-conductor). Either Connector can be used.

*2: Communications are disabled if SHS is selected for the detection mode, and the communications functions 

for mutual interference prevention and the Mobile Console will not function.

*3: Connectable communication units are E3X-ECT (30 units max.) and E3X-CRT (16 units max.). For details 

on names of each part and settings, refer to items of the twin output model.

20

 to 70

℃ (with no icing or condensation)

 Ambient humidity 

Vibration

Select for actual detection operation or set the following: Manual adjustment of 
thresholds, Positioning teaching, Teaching with and without a workpiece, Fine 
positioning, Zero reset, or Key lock

The following notice applies only to products that carry the CE mark:
Notice:

This is a class A product. In residential areas it may cause radio 

interference, in which case the user may be required to take adequate 

measures to reduce interference.

Manufacturer:

  Omron Corporation,

  Shiokoji Horikawa, Shimogyo-ku,

  Kyoto 600-8530 JAPAN

  Ayabe Factory

  3-2 Narutani, Nakayama-cho,

  Ayabe-shi, Kyoto 623-0105 JAPAN

TRACEABILITY INFORMATION:

Representative in EU:

  Omron Europe B.V.

  Wegalaan 67-69

  2132 JD Hoofddorp,

  The Netherlands

Protective Cap

Power Supply

Connecting Terminal

* 4 0 1 2 1 3 3 - 6 A *

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