Omron E3X-NH User Manual

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High-Precision Fiber-optic Amplifier E3X-NH
TheE3X-NHEmploysa16-Bit
Processor as An Industry First
H
An Automatic Sensitivity Adjustment
feature allows stable detection of
objects in frequently changing
environments
H Three teach modes for optimal sensing
H 8-point scaled sensitivity meter is ideal
for high precision sensing and
through-beam applications at long
distances (and clearly displays a
target’s reflectivity level)
H A manual fine tuning sensitivity feature
allows 13 threshold adjustments using
an easy-to-read digital scale
H Ideal for detecting small objects or fine
wires
H NPN/PNP types available
Ordering Information
J AMPLIFIER UNITS
Description General-purpose models Timer-function models
Output NPN PNP NPN PNP
Part number E3X-NH11 E3X-NH41 E3X-NH21 E3X-NH51
Appearance
Light source (Wave length) Red LED (680 nm)
Power supply voltage 12 to 24 VDC ±10%, ripple (p-p) 10% max.
Current consumption 75 mA max.
Output
Control
output
NPN open collector ,
load current: 50 mA
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PNP open collector,
load current: 50 mA
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NPN open collector ,
load current: 50 mA
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PNP open collector,
load current: 50 mA
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Alarm output
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1Vmax.
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1Vmax.
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1Vmax.
max., res
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1Vmax.
Response time 1 ms max. for turn-on and turn-off, respectively
Sensitivity setting Teaching method
Fine sensitivity adjustment Automatic or manual fine threshold adjustment (13 levels)

Omron E3X-NH Specifications

General

Current Consumption	40 mA max.
Output Current	100 mA max.
Operating Temperature	-25 to 55°C
Degree of Protection	IP67
Supply Voltage	12-24 VDC
Response Time	1 ms max.
Light Source	Red LED
Output Type	NPN or PNP
Control Output	NPN or PNP
Protection Circuit	Reverse polarity protection
Storage Temperature	-30 to 70°C
Ambient Humidity	35 to 85% (No condensation)
Vibration Resistance	10 to 55 Hz, 1.5 mm amplitude
Shock Resistance	1, 000 m/s**2

Summary

Ordering Information

Sensitivity Setting and Adjustment

Fine-tuning on Production Lines

Adjusting sensitivity for target variations or precise positioning tasks.

Ideal Operation Under Frequently Changing Environments

Strategies for reliable detection despite environmental factors like dust.

Sensitivity Setting (Teaching)

Maximum Sensitivity Setting

Factory reset procedure to set sensitivity to maximum via button press.

Two-point Teach Mode

Method for setting sensitivity using both target presence and absence.

One-point Teach Mode

Teaching Process Overview

Detailed steps for performing one-point teaching for various sensing models.

Sensitivity Adjustment (Tuning)

Manual-tuning (Fine Sensitivity Adjustment)

Detailed steps for manual adjustment using UP/DOWN selectors in ADJ mode.

Auto-tuning (Automatic Sensitivity Compensation)

Procedure for initiating automatic sensitivity compensation via SET button.

Sensitivity Setting - Threshold Setting and Indicators

2-Point Teach Mode Application

Technique for detecting surface irregularities or minute objects using two points.

One-point Teach Mode Applications

Diffuse (Light-ON) Fiber Unit Teaching

Through-beam (Dark-ON) Fiber Unit Teaching

Threshold Level and Indicator Levels

Setting the Initial Threshold

Process for setting initial threshold using one-point teaching and auto-tuning.

Installation

CUTTING FIBER

FIBER CONNECTION OR DISCONNECTION PROCEDURES

Precautions

WARNING

States the E3X-NH is not a safety component as per EC directives.

AVOID DAMAGE TO THE E3X-NH SENSOR

Warnings against exceeding voltage, incorrect polarity, and short-circuiting the load.

MUTUAL INTERFERENCE PROTECTION

EEPROM WRITING ERROR