Omron L, ZX User Manual

Smart Sensors

Laser Type

Cat. No. Z197-E1-02A

ZX-L-N Series

USER’S MANUAL

ÇÕǹÇ?Ç ëÊ 1 èÕ ëÊ 2 èÕ ëÊ 3 èÕ ëÊ 4 èÕ

Introduction

Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7

Introduction

Section 1

Section 2

Section 3

Section 4

Section 5

Section 6

Section 7

APPLICATION CONSIDERATIONS (Please Read)

FEATURES

PREPARATION FOR MEASUREMENT

BASIC OPERATION

MAIN APPLICATIONS AND SETTING METHODS

DETAILED SETTINGS

AUXILIARY FUNCTIONS

APPENDIX

User’s Manual

Smart Sensors
ZX-L-N Series

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ZX-L-N

User’s Manual

Introduction

Introduction

Thank you for purchasing the ZX-L-N Series Smart Sensor. This manual provides information

regarding functions, performance and operating methods that are required for using the

sensor.

When using the ZX-L-N Smart Sensor, make sure to observe the following:

• The ZX-L-N Smart Sensor must be operated by personnel knowledgeable in electrical

engineering.

• To ensure correct use, please read this manual thoroughly to deepen your

understanding of the product.

• Please keep this manual in a safe place so that it can be referred to whenever

necessary.

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Introduction

READ AND UNDERSTAND THIS DOCUMENT

Please read and understand this document before using the products. Please consult your OMRON representative if
you have any questions or comments.

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 NON­INFRINGEMENT, 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 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.

SUITABILITY FOR USE

THE PRODUCTS CONTAINED IN THIS DOCUMENT ARE NOT SAFETY RATED. THEY ARE NOT DESIGNED OR
RATED FOR ENSURING SAFETY OF PERSONS, AND SHOULD NOT BE RELIED UPON AS A SAFETY
COMPONENT OR PROTECTIVE DEVICE FOR SUCH PURPOSES. Please refer to separate catalogs for OMRON's
safety rated products.

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 product.

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 document.
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 PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.

PERFORMANCE DATA

Performance data given in this document 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.

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 product 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

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User’s Manual

Introduction

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.

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.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user’s programming of a programmable product, or any consequence thereof.

COPYRIGHT AND COPY PERMISSION

This document shall not be copied for sales or promotions without permission.

This document is protected by copyright and is intended solely for use in conjunction with the product. Please notify us
before copying or reproducing this document in any manner, for any other purpose. If copying or transmitting this
document to another, please copy or transmit it in its entirety.

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Meanings of Signal Words

Introduction

The following signal words are used in this manual.

The following alert symbols are used in this manual.

Meanings of Signal Words

Indicates a potentially hazardous situation which, if not avoided, will
result in minor or moderate injury, or may result in serious injury or
death. Additionally there may be significant property damage.

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

Meanings of Alert Symbols

Indicates the possibility of laser radiation.

Indicates prohibition when there is a risk of minor injury from electrical shock
or other source if the product is disassembled.

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Laser Safety

ZX-L-N

User’s Manual

Introduction

 ZX-LD/ZX-LD30V Reflective Sensor Type Sensor Head

 ZX-LT Through-beam Type Sensor Head

Laser Safety

Never look into the laser beam.

Doing so continuously will result in visual impairment.

Do not disassemble the product.

Doing so may cause the laser beam to leak, resulting in the danger

of visual impairment.

Do not look into the laser beam.

Doing so continuously may result in visual impairment.

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Laser Safety

Introduction

The ZX-LD, ZX-LDL, ZX-LDV, and ZX-LDVL Sensor Heads are Class

2 Laser Products according to EN 60825-1 (IEC 60825-1) and Class II Laser Products

according to FDA (21 CFR1040.10) (see note). The ZXLT Sensor Heads are Class

1 and Class II Laser Products, respectively. The ZX Series is meant to be built into final

system equipment. Pay special attention to the following precautions for the safe use of

the product:

Note: Europe: Class 1 and Class 2 of EN 60825-1: 1994 +A11:1996 +A2:2001

= IEC 60825-1:1993 +A1:1997 +A2:2001

U.S.A.: Class I and Class II of FDA (21 CFR1040.10)

As for the Laser Product Classifications, refer to the Appendix,

p.155

(1) ZX-LD/ZX-LD30V emits visual laser beam. Do not stare directly into the

laser.

Make sure that the laser beam path is terminated. If specular objects are present

in the laser beam path, make sure that they are prevented from reflecting the

laser beam.

When used without an enclosure, make sure the laser path from eye level is

avoided.

(2) To avoid exposure to hazardous laser radiation, do not displace nor remove the

protective housing during operation, maintenance, and any other servicing.

(3) As for countries other than those of Europe and the U.S.A., observe the

regulations and standards specified by each country.

(4) Label Indications

The EN and FDA labels are supplied with the product.

Replace the current labels with them according to the instructions given in the

manuals.

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Precautions for Safe Use

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User’s Manual

Introduction

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

 Installation Environment

• Do not use the product in environments where it can be exposed to inflammable/

explosive gas.

• Do not install the product close to high-voltage devices and power devices in order

to secure the safety of operation and maintenance.

 Power Supply and Wiring

• The supply voltage must be within the rated range (DC12 to 24V±10%).

• Reverse connection of power supply is not allowed. Connection to AC power supply

is also not allowed.

• Open-collector outputs should not be short-circuited.

• High-voltage lines and power lines must be wired separately from this product.

Wiring them together or placing in the same duct may cause induction, resulting in

malfunction or damage.

• Always turn off the power supply before connecting or disconnecting cables and

connectors.

 Others

• ZX-E series (linear proximity type), and ZX-W series (microwave type) and ZX-T

series (high-precision contact type) must not be connected. Combined use of ZX-L

with these series is not allowed.

• Do not attempt to dismantle, repair, or modify the product.

• Dispose of this product as industrial waste.

Precautions for Safe Use

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Precautions for Correct Use

Introduction

Please observe the following precautions to prevent failure to operate, malfunctions, or

undesirable effects on product performance.

Installation of the Product

 Installation Site

Do not install the product in locations subjected to the following conditions:

• Ambient temperature outside the rating

• Rapid temperature fluctuations (causing condensation)

• Relative humidity outside the range of 35 to 85%

• Presence of corrosive or flammable gases

• Presence of dust, salt, or iron particles

• Direct vibration or shock

• Reflective sensor of intense light (such as other laser beams or electric arc-welding

machines)

• Direct sunlight or near heaters

• Water, oil, or chemical fumes or spray

• Strong magnetic or electric field

Component Installation and Handling

 Power Supply and Wiring

• To extend the output cables of Amplifier Units, shielded cables of the same

specifications as the output cables must be used.

• When using a commercially available switching regulator, make sure that the FG

terminal is grounded.

• If surge currents are present in the power lines, connect surge absorbers that suit

the operating environment.

• When using two ore more amplifier units, make sure that the linear GND line of the

amplifier units are connected to each other.

• Before turning ON the power after the product is connected, make sure that the

power supply voltage is correct, there are no incorrect connections (e.g. load short­circuit) and the load current is appropriate. Incorrect wiring may result in breakdown
of the product.

• The cables must be 10m or shorter in total length, for both sensor head and amplifier

units. To extend the cable from the sensor head, an optional extension cable
(ZX-XCA) must be used. For extension of the cable of amplifier units, shielded
cables of the same type must be used.

• When using calculation units, make sure that the linear GND lines of the amplifier

units are connected to each other.

Precautions for Correct Use

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Precautions for Correct Use

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 Warming Up

After turning ON the power supply, allow the product to stand for at least 10 minutes

before use. The circuits are still unstable just after the power supply is turned ON, so

measured values may fluctuate gradually.

 Maintenance and Inspection

• Always turn OFF the power supply before adjusting or connecting/disconnecting the

sensor head.

• Do not use thinner, benzene, acetone or kerosene to clean the sensor head and

amplifier units. If large dust particles adhere to the front filter of the sensor head, use

a blower brush (used to clean camera lenses) to blow them off. Do not blow the dust

away with your mouth. To remove smaller dust particles, use a soft cloth (for lenses)

with a small amount of alcohol. Take care not to wipe them off with excessive force.

Scratches on the filter may cause errors.

 Sensing Object For Reflective Type Sensor Head

The product cannot accurately measure the following types of objects: Transparent

objects, objects with an extremely low reflective sensor ratio, objects smaller than the

spot diameter, objects with a large curvature, excessively inclined objects, etc.

 Mutual Interference

Inserting a calculation unit between amplifier units can prevent mutual interference

between two sensor heads. However, this may not work efficiently if one sensor head is

saturated and a laser beam of the other sensor head is input. If you are interested in

installing a calculation unit in order to prevent mutual interference, carry out a test using

the actual system beforehand.

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Editor's Note

Introduction

Editor's Note

Page Format

TheresponsetimeoftheCH2AmplifierUnittowhichanexpressionissetwillbe
prolongedby1.0ms.Sincetheresponsetimeisinfluencedbythenumberofsamplesto
average,theactualresponsetimewillbe"responsetimebasedonthenumberof
samplestoaverage+1.0ms"

Section6

AUXILIARYFUNCTIONS

T FUNRUN

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ZX-L

OperationManual

OperationManual

Section6

Section6

AUXILIARYFUNCTIONS

MeasuringwithMultiple

MeasuringwithMultiple

AmplifierUnits

AmplifierUnits

ThissectiondescribesthesettingswhenCalculatingUnitsareusedtoconnectmultiple
AmplifierUnits.

PerformingCalculations

PerformingCalculations

SettingtheNumberofSamplestoAveragep.66



AddingandSubtractingMeasurementResults

MovingtoFUNandCALC

1. SetthemodeswitchtoFUNontheCH2

AmplifierUnit.

UsetheLEFTandRIGHTKeystodisplay
[CALC]onthemaindisplay.

2.

3.

PresstheUPorDOWNKey.

UsetheUPorDOWNKeytoselectthe
desiredexpression.

PresstheENTKeytoconfirmthesetting.

Thesub-displaywillflash.

4.

5.

Thesettingwillberegistered.

Measurementresultscanbecalculatedbetween2AmplifierUnits.Theexpressionis
setontheCH2AmplifierUnitandthecalculationresultsarealsooutputfromtheCH2
AmplifierUnit.CalculationscanalsobeperformedbetweenSensorswithdifferent
measuringranges.

z Title of each section

z Header

z Overview

z Sub-header

z Index label

z Overview and points of

the function described

z Purpose of operation

z Display

z Keys or switches to be used

z Operation procedure and supplementary explanation

Indicates the contents of the page.

Describes the overview and
operation flow of the section.

Shows the chapter number
and contents.

Shows the contents of the
operation to be performed.

Shows the display status resulting
from the operation.

Illustrates the keys and switches to be used.

Explains the operation procedure and the display
status resulting from execution of the operation.
Helpful information regarding operation and
reference pages is introduced here using symbols.

* This page does not exist.

z Cross-header

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Introduction

Notational Conventions

 Menu

In this manual, menu items displayed on the screen are enclosed with [ ].

 Operation procedure

Operation steps are numbered to indicate their order.

 Visual Aids

Indicates points that are important to achieve the full product performance, such as operational

precautions and application procedures.

Indicates pages where related information can be found.

Indicates information helpful in operation.

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Introduction

Contents

Introduction ii

Precautions on Safety v

Laser Safety vi

Precautions for Safe Use viii

Precautions for Correct Use ix

Editor's Note xi

Contents xiii

Section 1 FEATURES 1

ZX-L Features 2

Section 2 PREPARATION FOR MEASUREMENT 9

Basic Configuration 10

Part Names and Functions 11

Installing the Amplifier Unit 16

Installing Sensor Heads 18

Connections 21

Wiring Input/Output Cables 27

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Section 3 BASIC OPERATION 31

Flow of Operation 32

Basic Knowledge for Operation 34

Function Transition Charts 39

Setting the Auto Scale 42

Setting the Standard Received Light Amount 45

Measuring the Received Light Amount (Intensity Mode) 46

Section 4 MAIN APPLICATIONS AND SETTING METHODS 49

Measuring Height 50

Measuring Thickness 54

Measuring Eccentricity and Vibration 58

Measuring Edges 61

Section 5 DETAILED SETTINGS 65

Setting Number of Samples to Average 66

Changing Display Scales 67

Setting the Measurement Sensitivity (Gain Switching) 74

Using Hold Functions 76

Comparing Measured Values (Differentiation Function) 83

Comparing Measured Values (Previous Value Comparisons) 86

Entering Threshold Values 88

Linear Output 95

Setting Judgement Output Timing (Timer) 104

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Introduction

Section 6 AUXILIARY FUNCTIONS 107

Measuring with Multiple Amplifier Units 108

Changing the Number of Display Digits 112

Reversing the Display 113

Adjusting Display Brightness (ECO Display) 115

Using the Zero Reset Function 116

Key Lock Function 122

Initializing Settings Data 123

Section 7 APPENDIX 125

Troubleshooting 126

Error Messages and Countermeasures 127

Q&A 129

Glossary 130

Specifications and Dimensions 132

Communication with the Smart Monitor is possible via the Interface Unit 144

Engineering Data 146

Quick Reference for Displays 152

Requirements from Regulations and Standards 155

Index 164

Revision History 168

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MEMO

Section 1 FEATURES

1

ZX-L-N

User’s Manual

Section 1
FEATURES

ZX-L Features 2

2

Section 1 ZX-L Features

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Section 1
FEATURES

ZX-L Features

The ZX-L Series provide the reflective type for displacement measurement and through-beam

type for smart length measurement. Measurement is performed using laser. By irradiating

laser beams to the object, the sensor can measure the distance between the object and

sensor head, perform positioning and width judgement.

Example: Measuring the height of a PCB mold

Example: Detecting cap floating

Measured value outputs

Measuring method

Sensing

object

Distance

Judgement outputs

(Reflective Type)

Measured value outputs

Judgement outputs

Sensing object

Laser received or blocked
amounts are measured at
two points to detect whether
the cap is floating or inclined
by checking changes in the
measured values.

Measuring method

(Through­beam Type)

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Section 1 ZX-L Features

Section 1

FEATURES

The Compact Body Provides Sufficient Space.

The ZX-L series come in units as small as photoelectric sensors. This enables effective

use of limited installation space.

Many, Simple Functions

 Measurement Ready at Power ON

The sensor can be used simply by installing and wiring it. Simply turn ON the power

and it is ready to operate.

The measurement results are displayed on the Amplifier Unit.

 Simple Calculation Settings

Use a Calculating Unit to simply measure thickness and sum and difference

calculations between two measurements.

p.108

LDON

Calculating Unit

Thickness

4

Section 1 ZX-L Features

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User’s Manual

Section 1
FEATURES

Mutual Interference Prevention for Closely Mounted
Sensor Heads

The sensor has a mutual interference prevention function which allows multiple Sensor

Heads to be mounted close to each other.

This function is supported for up to two Sensor Heads by using ZX-CAL2 Calculating

Units.

p.24

Calculating

Unit

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Section 1 ZX-L Features

Section 1

FEATURES

Compatibility between Sensor Heads and Amplifier
Units

Amplifier Units do not need to be changed when Sensor Heads are changed for

maintenance or to switch to new products.

Extendable Sensor Head Cables

Special extension cables are provided to extend sensor heads.

p.10

Special extension cable

6

Section 1 ZX-L Features

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User’s Manual

Section 1
FEATURES

Monitoring Measurement Status

 Resolution Display for Sensing Object

The resolution can be displayed, allowing judgements to be made about detection

margins while viewing the resolution value.

p.39

 Confirm Measurement Status on a Personal Computer

Use an Interface Unit and Smart Monitor to view measurement waveforms and log

measurement data on a personal computer. This function is useful for making on-site

measurement adjustments and for day-to-day quality control.

p.15, p.144

LDON

Resolution

Resolution

Deviation to be

detected

Smart Monitor

Interface Unit Amplifier Unit

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Section 1 ZX-L Features

Section 1

FEATURES

Useful Warning Functions

 Built-in Laser Life Monitor

When the laser of Sensor Head deteriorates, [LDDWN] will appear for approx. five

seconds on the Main Display when the power is turned ON. This assists in

understanding when the Sensor Head should be replaced with a new one.

SUB

(mm)

LDON ENABLEZERO

8

Section 1

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Section 1
FEATURES

MEMO

Section 2 PREPARATION FOR MEASUREMENT

9

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Section 2
PREPARATION FOR MEASUREMENT

Basic Configuration 10

Part Names and Functions 11

Installing the Amplifier Unit 16

Installing Sensor Heads 18

Connections 21

Wiring Input/Output Cables 27

10

Section 2 Basic Configuration

ZX-L-N

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Section 2
PREPARATION FOR MEASUREMENT

Basic Configuration

The basic configuration of the ZX-L series Smart Sensors is shown below.

ZX-L series Smart Sensors are not compatible with other ZX series Smart Sensors. ZX-L cannot be used

with ZX-E, ZX-W and ZX-T series Smart Sensors.

p.26

p.16

p.18

p.24

Smart Monitor
(Software)

ZX-SW11

Enables operation of
Amplifier Units from
the personal computer
and monitoring
measured values.

Personal
Computer

Interface Unit

Used to connect to a
personal computer
or programmable
controller.

Sensor Head

ZX-LD
ZX-LT

Detects the
sensing object.

Basic Configuration

Amplifier Unit

ZX-LDA11-N (NPN type)

ZX-LDA41-N (PNP type)

Performs measurements and
outputs measurement results.

Power Supply

DC12 to 24V (±10%)

Extension
Cable

ZX-XC1A(1m)
ZX-XC4A(4m)
ZX-XC8A(8m)
ZX-XC9(9m)

To be used between
a Sensor Unit and
Amplifier Unit.
Only one extension
cable can be used.
ZX-XC9 can be used
for ZX-LD only.

Calculating
Unit

ZX-CAL2

Used to connect two
or more Amplifier
Units.

•

Calculation

•

Mutual interference
prevention

(Ver 3.0 or later)

ZX-SF11

(Ver 2.0 or later)

Connecting Cable

p.142

Commercially
available cross cable

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User’s Manual

Section 2 Part Names and Functions

Section 2

PREPARATION FOR MEASUREMENT

Part Names and Functions

Amplifier Unit

(1) The input cable connects the Sensor Head.
(2) The current/voltage switch selects either a current or voltage linear output.

Monitor focus settings are also required when switching the output.

p.95

(3) The connectors connect Calculation and Interface Units.
(4) The output cable connects the sensor to the power supply and external devices,

such as sync sensors or programmable controllers.
(5) The Laser indicator lights while the Sensor Head is emitting a laser beam.
(6) The Zero Reset indicator lights when the zero reset function is enabled.
(7) The ENABLE indicator lights when the Sensor is ready for measurement. It goes

off when measurement is not possible (e.g. when the received light amount is

excessive or insufficient, when the measuring range is exceeded, or when the

Sensor Head is not connected when the power is turned ON).
(8) The HIGH indicator lights when the judgement result is HIGH.
(9) The PASS indicator lights when the judgement result is PASS.
(10) The LOW indicator lights when the judgement result is LOW.
(11) The main display shows measured values and function names.
(12) The sub-display shows additional information and function settings for

measurements.

Reading Displays p.35

(13) The threshold switch selects whether to set (and display) the HIGH or LOW threshold.

(14) The mode switch selects the operating mode. Switching Modes p.34
(15) The Control Keys set measurement conditions and make other settings. Key

Operations

p.36

LDON

(*)Operating and Display Sections

Operating Section(*)

Display Section(*)

(1) Input Cable

(4) Output Cable

(3) Connector (two connectors, one on each side)

(2) Current/voltage switch (on rear side)

(5) Laser indicator

(6) Zero Reset indicator

(7) ENABLE indicator

(15) Control Keys

(14) Mode switch

(13) Threshold switch

(12) Sub-display

(11)Main Display

(10) LOW indicator

(9) PASS indicator

(8) HIGH indicator

Current/voltage switch

Voltage output

Current output

12

Section 2 Part Names and Functions

ZX-L-N

User’s Manual

Section 2
PREPARATION FOR MEASUREMENT

Sensor Head

 Reflective type sensor head

Laser Emitter/Receiver

Section

Connector

To be connected to the Amplifier Unit.

NEAR Indicator

Both NEAR and FAR indicators are lit:

Measuring center distance

(Measuring range x 10%)

NEAR indicator is lit: Near side within measuring range

FAR indicator is lit: Far side within measuring range

Both NEAR and FAR indicators are blinking:

Outside measuring range

FAR Indicator

13

ZX-L-N

User’s Manual

Section 2 Part Names and Functions

Section 2

PREPARATION FOR MEASUREMENT

 Through-beam Type Sensor Head

Receiver (cable length: 0.5m)

Receiving section

Emitter (cable length: 0.5m)

Emitting
section

Connector

Sensor Head – Amplifier Unit

To be connected to the connecting cable.

Connector

To be connected to the receiver.

Cable: Black

Side View Attachment

Used to change the mount direction.

Fixing screw

Laser indicator

Lit while the laser is emitted.

Cable: Gray

Connector

Sensor Head – Amplifier Unit

To be connected to the connecting cable.

Connector

To be connected to the emitter.

Emitting

section

Emitter

Fixing screw

Receiving section

Receiver

Sensor Head – Amplifier Unit

Connecting Cable (cable length: 1.5m)

14

Section 2 Part Names and Functions

ZX-L-N

User’s Manual

Section 2
PREPARATION FOR MEASUREMENT

Calculating Units

* Display Detail

Display (*) Connector (two connectors, one on each side)

Connection indicator

Lit when the Amplifier Unit is connected.

To be connected to the Amplifier Unit.

15

ZX-L-N

User’s Manual

Section 2 Part Names and Functions

Section 2

PREPARATION FOR MEASUREMENT

Interface Units

(1) The communications connector connects the communications cable to the

computer.

(2) The Amplifier Unit connector connects to the Amplifier Unit.

(3) The power supply indicator lights while the power is supplied.

(4) BUSY: Lights during communications with the Smart Sensor.

ERR: Lights if an error occurs during communications with the Smart Sensor.

(5) BUSY: Lights during communications with the personal computer.

ERR: Lights if an error occurs during communications with the personal

computer.

* Display Detail

(2) Amplifier unit connector

(1) Communications

connector

Display (*)

(3) Power supply indicator

(4) Sensor communication indicator (BUSY/ERR)

(5) External terminal communication indicator (BUSY/ERR)

16

Section 2 Installing the Amplifier Unit

ZX-L-N

User’s Manual

Section 2
PREPARATION FOR MEASUREMENT

Installing the Amplifier Unit

Amplifier Units can be easily mounted to 35-mm DIN Track.

 Installation

Hook the connector end of the Amplifier Unit on the DIN Track and press in at the

bottom until the Unit locks into place.

Always hook the connector end of the Amplifier Unit on the DIN Track first. Mounting strength may

decrease if the output cable end is hooked on the DIN Track first.

DIN Track (Option)

PFP-100N (1m)

PFP-50N (0.5m)

PFP-100N2 (1m)

End Plate (Option)

PFP-M

Hook on the

connector end

17

ZX-L-N

User’s Manual

Section 2 Installing the Amplifier Unit

Section 2

PREPARATION FOR MEASUREMENT

 Removal Method

Push the Amplifier Unit up and pull out from the connector end.

18

Section 2 Installing Sensor Heads

ZX-L-N

User’s Manual

Section 2
PREPARATION FOR MEASUREMENT

Installing Sensor Heads

This section describes how to install Sensor Heads. The installation method varies between

the Reflective Type and Through-beam Type Sensor Heads.

Reflective Type Sensor Head

 Installation

Fix the Reflective type sensor head with screws.

When mounting a Sensor Head, take care not to touch the emitter and receiver. Adhesion of finger

marks may hinder correct measurements. If you have touched them, wipe them with a clean, soft

cloth.

26±0.1

47±0.1

32±0.1

2-M3

2-M4

ZX-LD Mounting dimensional drawing (for M3 screws) (Unit: mm)

ZX-LD30V Mounting dimensional drawing (for M4 screws) (Unit: mm)

19

ZX-L-N

User’s Manual

Section 2 Installing Sensor Heads

Section 2

PREPARATION FOR MEASUREMENT

Through-beam Type Sensor Head

 Installation

Fix the through-beam type sensor head with M3 screws. The screws must be tightened

with a torque of 0.3N•m or lower.

Make sure that the emitter and receiver are mounted in the correct direction as shown below.

Mounting them in the wrong direction will hinder correct measurements.

9±0.1

2-M3

14±0.1

2-M3

ZX-LT001/LT005

ZX-LT001/LT005 Mounting dimensional drawing (same for both

emitter and receiver) (Unit: mm)

ZX-LT010

ZX-LT010 Mounting dimensional drawing (same for both emitter and

receiver) (Unit: mm)

Emitter

Mounting hole

Receiver

Mounting hole

20

Section 2 Installing Sensor Heads

ZX-L-N

User’s Manual

Section 2
PREPARATION FOR MEASUREMENT

 Adjusting the Optical Axis

Affix the optical axis adjustment seal (supplied with the sensor) on the front side of the

receiver, and adjust the receiver position so that the laser beam is irradiated at the

center of the cross on the seal.

For more accurate adjustment, adjust the receiver position so that the Amplifier Unit

shows the largest reading.

• When adjusting the receiver position, take care not to touch the emitter and receiver of the sensor

head. Adhesion of finger marks may hinder correct measurements. If you have touched them,

wipe them with a clean, soft cloth.

• The standard received light amount and scaling must be set after completion of optical axis

adjustment.

• After optical axis adjustment is complete, remove the optical axis adjustment seal.

Setting the Standard Received Light Amount p.45, Scaling p.67

 Installing the Side View Attachment

Fix the side view attachment with M2 screws (supplied with the product). The screws

must be tightened with a torque of 0.08N•m or lower.

The side view attachment can be used even if only the emitter or receiver is mounted.

Make sure that the emitter and receiver are mounted in the correct direction as shown

below. Mounting them in the wrong direction will hinder correct measurements.

• Make sure that the screws are tightened with the same torque. Tightening them with different

torque may cause the optical axis to shift.

• Tightening the screws with a torque exceeding 0.08N•m may damage the screw holes. Make sure

that the screws are tightened with the specified torque.

• After the side view attachment is mounted, adjust the optical axis.

Optical axis adjustment seal

Mounting hole

Mounting hole

21

ZX-L-N

User’s Manual

Section 2 Connections

Section 2

PREPARATION FOR MEASUREMENT

Connections

This section describes how to connect component parts of the Smart Sensor.

Before connecting/disconnecting Smart Sensor components, make sure that the power to the Amplifier Unit

is turned OFF. The Smart Sensor may malfunction if components are connected or removed while the power

is ON.

Sensor Head

Do not touch the terminals inside the connector.

 Connecting the Reflective Type Sensor Head

Push the Sensor Head connector into the Amplifier Unit connector until it locks.

 Connecting the Through-beam Type Sensor Head

1. Push the emitter and receiver connectors into the connectors (×2) of the Sensor Head

- Amplifier Unit connecting cable until they lock.

When connecting the Sensor Head, take care not to cause static electricity on the connectors.

Connect the emitter to the gray cable.

Connect the receiver to the black cable.

22

Section 2 Connections

ZX-L-N

User’s Manual

Section 2
PREPARATION FOR MEASUREMENT

2. Push the Sensor Head - Amplifier Unit cable connector into the Amplifier Unit

connector until it locks.

 Disconnecting the Reflective Type Sensor Head

To disconnect the Reflective Type Sensor Head, hold the Sensor Head's connector ring

and the Amplifier Unit connector, and then pull them straight out.

• Make sure to hold the connector of the Amplifier Unit to disconnect it. Failure to do so may

damage the input cable of the Amplifier Unit.

• Do not touch the terminals inside the connector.

All settings on the Amplifier Unit will be cleared if the Sensor Head is replaced with a different type.

 Disconnecting the Through-beam Type Sensor Head

1. Hold the connector ring of the Sensor Head – Amplifier Unit connecting cable and the

Amplifier Unit connector, and then pull them straight out.

• Make sure to hold the connector of the Amplifier Unit to disconnect it. Failure to do so may

damage the input cable of the Amplifier Unit.

• Do not touch the terminals inside the connector.

Connector Ring

Connector Ring

23

ZX-L-N

User’s Manual

Section 2 Connections

Section 2

PREPARATION FOR MEASUREMENT

2. Unhook the connector of the Sensor Head – Amplifier Unit cable from the emitter and

receiver connectors, and pull them straight out as shown below.

Hook

24

Section 2 Connections

ZX-L-N

User’s Manual

Section 2
PREPARATION FOR MEASUREMENT

Calculating Units

When you want to perform calculations between Amplifier Units, prevent mutual

interference between Sensor Heads or connect ZX-SF11 to perform communication

between Amplifier Units, use a Calculating Unit to connect the Amplifier Units.

The number of Amplifier Units that can be joined depends on the functions being used.

Provide power to all connected Amplifier Units.

 Connection Method

1. Open the connector cover on the Amplifier Unit.

Open the connector cover by lifting and sliding it open.

2. Mount the Calculating Unit to the DIN Track.

3. Slide and connect the Calculating Unit to the Amplifier Unit connector.

4. Slide and connect the second Amplifier Unit to the Calculating Unit connector.

To disconnect the Interface Unit, perform the above operations in reverse order.

Functions No. of Connectable Amplifier Units

Calculation Max. 8

Mutual interference
prevention

Max. 2

Communication (when
ZX-SF11 is used)

Max. 5

1

1

3

4

2

25

ZX-L-N

User’s Manual

Section 2 Connections

Section 2

PREPARATION FOR MEASUREMENT

 Channel Numbers of Amplifier Units

The following diagram shows the channel numbers when multiple Amplifier Units are

connected.

CH1CH2CH3CH4CH5

26

Section 2 Connections

ZX-L-N

User’s Manual

Section 2
PREPARATION FOR MEASUREMENT

Interface Units

Use an Interface Unit to connect a personal computer to the Smart Sensor system.

 Connection Method

1. Open the connector cover on the Amplifier Unit.

Open the connector cover by lifting and sliding it open.

2. Mount the Interface Unit to the DIN Track.

3. Slide and connect the Interface Unit to the Amplifier Unit connector.

To disconnect the Interface Unit, perform the above operations in reverse order.

• When multiple Amplifier Units are used, connect the Interface Unit to the Amplifier Unit with the

highest channel number.

• Communication with the Smart Monitor is possible via the Interface Unit.

p.144

1

3

2

27

ZX-L-N

User’s Manual

Section 2 Wiring Input/Output Cables

Section 2

PREPARATION FOR MEASUREMENT

Wiring Input/Output Cables

The input/output cable has the following wires.

Wire the cable correctly. Incorrect wiring may damage the Smart Sensor.

(1) A 12- to 24-VDC (±10%) power supply is connected to the power supply terminal.

When using an Amplifier Unit with a PNP output, the power supply terminal is also

the common I/O terminal for all I/O except for the linear output.

Use a stabilized power supply separate from other devices and power systems for the

Amplifier Unit, particularly when high resolution is required.

(2) The GND terminal is the 0-V power supply terminal. When using an Amplifier Unit

with an NPN output, the GND terminal is also the common I/O terminal for all I/O

except for the linear output.
(3) The HIGH judgement output outputs judgement results (HIGH).
(4) The PASS judgement output outputs judgement results (PASS).
(5) The LOW judgement output outputs judgement results (LOW).
(6) The linear output outputs a current or voltage in accordance with the measured

value.
(7) The linear output GND terminal is the 0-V terminal for the linear output.

• This ground wire must be grounded separately from the other ground wires.

• Always ground the linear output terminal even when linear output is not used.

(8) If this LD-OFF signal is ON, the laser will stop emission, causing a light amount

error. In this case, the linear output, digital display, judgement output and

judgement output display signals will be output according to the non-measurement

settings.

The sub-display will show [LDOFF].
(9) The zero reset input is used to execute and clear zero reset.

p.118

(10) The timing input is for signal input from external devices. Use it for hold function

timing. The sub-display will show [TIMIG] while the hold function timing is input.
(11) The reset input resets all measurement processing and outputs. The sub-display

will show [RESET] while the hold function reset is input. The linear and judgement

output signals will be output according to the non-measurement settings. If this

reset input switches ON while the hold function is used, the state in effect before

the hold function was set will be restored.

(1) Power supply

Brown

(2) GND

(3) HIGH judgement output

(4) PASS judgement output
(5) LOW judgement output

(6) Linear output
(7) Linear GND

(8) LD-OFF input
(9) Zero reset input

(10) Timing input
(11) Reset input

Blue

White

Green

Gray
Black

Shield
Pink
Orange

Purple

Red

28

Section 2 Wiring Input/Output Cables

ZX-L-N

User’s Manual

Section 2
PREPARATION FOR MEASUREMENT

I/O Circuit Diagrams

 NPN Amplifier Unit

100Ω

Brown

White

Green

Gray

Blue

Pink

Purple

Orange

Red

Black

Shield

DC12 to 24V

HIGH judgement

output

PASS judgement output

LOW judgement output

GND (0V)

LD-OFF input

Timing input

Reset input

Linear output

Linear GND

Load

Load

Load

DC12 to 24V

Load

Current output

4 to 20mA

Voltage

±4V

Current/voltage

output

Switch

Current output: 300Ω or lower

Voltage output: 10kΩ or higher

Internal circuit

Zero reset input

29

ZX-L-N

User’s Manual

Section 2 Wiring Input/Output Cables

Section 2

PREPARATION FOR MEASUREMENT

 PNP Amplifier Unit

100Ω

Brown

White

Green

Gray

Blue

Pink

Purple

Orange

Red

Black

Shield

DC12 to 24V

HIGH judgement output

PASS judgement output

LOW judgement output

GND (0V)

LD-OFF input

Timing input

Zero reset input

Reset input

Linear output

Linear GND

Load

Load

Load

Load

Current output

4 to 20mA

Voltage

±4V

Current/voltage
output
Switch

Current output: 300Ω or lower
Voltage output: 10kΩ or higher

Internal circuit

DC12

to 24V

30

Section 2

ZX-L-N

User’s Manual

Section 2
PREPARATION FOR MEASUREMENT

MEMO

Section 3 BASIC OPERATION

31

ZX-L-N

User’s Manual

Section 3
BASIC OPERATION

Flow of Operation 32

Basic Knowledge for Operation 34

Switching Modes 34

Reading Displays 35

Key Operations 36

Condition Settings 37

Inputting Numeric Values 38

Function Transition Charts 39

RUN Mode 39

T Mode 39

FUN mode 40

Setting the Auto Scale 42

Setting the Standard Received Light Amount 45

Measuring the Received Light Amount (Intensity Mode) 46

32

Section 3 Flow of Operation

ZX-L-N

User’s Manual

Section 3
BASIC OPERATION

Flow of Operation

p.9

p.66
p.76

p.83

p.67

p.88

p.104

p.95

p.116

p.54

p.61

p.50

p.58

Installation and Connection
Preparation for
Measurement

Turn ON the power.

Making Settings According
to Your Application

Measuring Edges

Measuring Height

Measuring Thickness

Measuring Eccentricity
and Vibration

Setting/Changing Measurement Contents

Setting Number of Samples to Average

Using Hold Functions
Comparing Measured Values
(Differentiation Function)

Setting Judgement Conditions

Entering Threshold Values

Linear Output

Setting Judgement Output Timing

Correcting the Measurement Reference
Point

Using the Zero Reset Function

Preparation for

Measurement

Setting to Execution of Measurement Conditions

When Reflective Type
Sensor Head is
Connected

When Through-beam
Type Sensor Head is
Connected

p.9

Installation and Connection
Preparation for
Measurement

Turn ON the power.

Select the display unit (% or mm)
and the item to be measured
(received or blocked light
amount).

Preparation for Measurement

Setting the Standard
Received Light Amount

p.45

p.42

(If required)

Changing Display Scales

Setting Output Contents

p.74

Setting the Measurement Sensitivity
(Gain Switching)

p.86

Comparing Measured Values (Previous
Value Comparisons)

Setting the Auto Scale

(Not necessary if the two-point
scaling function is used)

33

ZX-L-N

User’s Manual

Section 3 Flow of Operation

Section 3

BASIC OPERATION

p.126

p.130

p.108

p.120

p.117

p.112

p.115

p.113

p.123

p.122

p.127

p.152

When a Problem Occurs….

An Error Message Has Appeared

Error Messages and
Countermeasures

The Smart Sensor Does Not
Operate Correctly

Troubleshooting

Want to Know Meanings of
Term s

Glossary

Want to Find Contents from
Digital Displays

Quick Reference for
Displays

Measuring with Multiple
Amplifier Units

Saving Zero Reset Level
(Zero Reset Memory)

(For Zero Reset)

Changing the Number of
Display Digits

Using Power-Saving Mode

Reversing the Display

Key lock Function

Initializing Settings Data

Applied Use of Functions

Additional Functions

Changing/Deleting Settings

Performing
Calculations

Entering Display Offset
Values

(For Reflective Type
Sensor Head)
Displaying the Received
Light Amount on the Main
Display

Intensity Mode p.46

34

Section 3 Basic Knowledge for Operation

ZX-L-N

User’s Manual

Section 3
BASIC OPERATION

Basic Knowledge for Operation

Switching Modes

The ZX-L has three modes. Use the Mode Switch on the Amplifier Unit to switch

between modes.

Switch to the desired mode before starting operation.

Function Transition Charts p.39

Mode Description

RUN Normal operation mode

T Mode for setting the threshold values

FUN Mode for setting measurement conditions

T FUNRUN

LDON

35

ZX-L-N

User’s Manual

Section 3 Basic Knowledge for Operation

Section 3

BASIC OPERATION

Reading Displays

The data displayed on the main and sub-displays depends on the mode currently

selected. RUN mode has been selected prior to shipment from the factory.

When the power is turned ON, the type of amplifier unit and then the number of

channels will be displayed on the main display.

The software version will be displayed on the sub-display.

They are displayed for approx. three seconds, and then data for each mode will be

displayed.

Function Transition Charts p.39

Mode Main Display Sub-display

RUN Displays the measured value (the value

after the measurement conditions have
been reflected).

For example, when the hold function is
set, the held value will be displayed.

Displays the threshold value, voltage, current, received
light amount, resolution and present value in order when
the Control Keys are pressed.

Threshold Value Display
Displays either the HIGH or LOW threshold value,
depending on the position of the threshold switch.

T Displays the measured value (the value

after the measurement conditions have
been reflected).

For example, when the hold function is
set, the held value will be displayed.

Displays the threshold value for the threshold being set.
Displays either the HIGH or LOW threshold value,
depending on the position of the threshold switch.

FUN Displays the function names in order

when the Control Keys are pressed.

Displays the setting for the function displayed on the
main display.

LDON

Main Display

Sub-display

HL

HL

36

Section 3 Basic Knowledge for Operation

ZX-L-N

User’s Manual

Section 3
BASIC OPERATION

 Alphabet Display Format

The alphabet appears on the main and sub-displays as shown in the following table.

Key Operations

Use the Control Keys to change the display and set measurement conditions.

The mode currently selected determines the key functions.

Switching Modes p.34

ABCDEFGHIJKLM

NOPQRSTUVWXYZ

Key

Function

RUN Mode T Mode FUN Mode

Cursor

Keys

LEFT Key

RIGHT Key

Changes sub-display
content.

Used when selecting
numeral digits.

Function changes
depending on setting.

• Switches function

display.

• Selects numeral digit.

• Stops setting.

UP Key Performs timing input. Used when changing

numerals.

Function changes
depending on setting.

• Switches between

selections.

• Changes numerals.

DOWN Key If the Sensor Head is

the through-beam
type, this cursor key is
used to input reset
signal.
If the Sensor Head is
the through-beam
type, this cursor key is
used to set the
standard received light
amount.

ENT Key When held down for

one second: Performs
zero reset.
When held down
together with the Right
Key for three seconds:
Cancels zero reset.

Function changes
depending on
operation.

• Confirms threshold

value.

• Executes teaching.

Confirms the set condition
or value.

LDON

Control Keys

37

ZX-L-N

User’s Manual

Section 3 Basic Knowledge for Operation

Section 3

BASIC OPERATION

Condition Settings

Display the target function on the main display and select the desired value from the

sub-display to set measurement conditions.

This section uses the example of setting a peak hold as the hold condition to explain

how to set measurement conditions.

Moving to FUN mode and HOLD

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT Keys to display

[HOLD] on the main display.

Setting Hold Conditions

3. Press the UP or DOWN Key.

The sub-display will flash.

4. Use the UP and DOWN Keys to select [P-H].

Press either the LEFT or RIGHT Key to cancel the

selected option.

The display will return to the current setting (OFF in this

example).

5. Press the ENT Key to confirm the setting.

The setting will be registered.

(mm)

LDON ENABLEZERO

SUB

SUB

SUB

38

Section 3 Basic Knowledge for Operation

ZX-L-N

User’s Manual

Section 3
BASIC OPERATION

Inputting Numeric Values

This section describes how to input numeric values for threshold and output settings.

The example of direct input of the low threshold value will be used.

Changing the low threshold from 40,000 to 39,000

Moving to T Mode

1. Set the mode switch to T.

Setting Threshold Values

2. Set the switch to L.

The measured value will be displayed on the main

display.

The current setting will be displayed on the sub-display.

3. Press any Cursor Key.

The first digit on the sub-display will flash and direct input

will be enabled.

4. Use the UP and DOWN Keys to display 3.

5. Use the LEFT or RIGHT Key to move the

cursor to the one's digit.

6. Use the UP and DOWN Keys to display 9.

To cancel the selected setting, use the LEFT Key to

move the cursor to the leftmost digit and press the LEFT

Key again. Alternatively, use the RIGHT Key to move to

the rightmost digit and press the RIGHT Key again. The

display will return to the current setting (40.000 in this

example).

7. Press the ENT Key to confirm the setting.

The display will change from flashing to being lit

continuously and the numeric value will be registered.

T FUNRUN

SUB

(mm)

LDON ENABLEZERO

HL

SUB

SUB

SUB

SUB

SUB

39

ZX-L-N

User’s Manual

Section 3 Function Transition Charts

Section 3

BASIC OPERATION

Function Transition Charts

Reading Transition Charts

The upper section is the main display and the lower section is the sub-display.

RUN Mode

The numerals shown in the above diagram are an example only. The actual display

may be different.

What is the present value? p.130

T Mode

There is no function transition in T mode.

The numerals shown in the above diagram are an example only. The actual display

may be different.

In RUN and T modes, the position of the threshold switch will determine whether the HIGH or LOW

threshold will be displayed.

Main Display

Sub-Display

*1 When the mode is switched to RUN, the measured and threshold values will be displayed first.

Threshold *1 Voltage

Measured value *1 (The main display always shows the measured value.)

Current

Received light
amount

Resolution Present value

p.88

Measured value

Threshold

HL

HIGH LOW

Threshold switch

40

Section 3 Function Transition Charts

ZX-L-N

User’s Manual

Section 3
BASIC OPERATION

FUN mode

p.67

p.66

p.94

p.76

p.78

p.86

p.99

p.46

p.95

p.112

p.115

p.113

p.116

p.74 p.120

p.102

Scaling *1

No. of samples
to average

Hysteresis
width

Hold

*1

When the mode is
switched to FUN,
scaling will be
displayed first.

Trigger mode

If selected, will be displayed again without special functions displayed.

Special functions

Differentiation
function

Linear output
correction

Intensity mode Monitor focus

Differentiation
cycle

Eco mode Display reverse

Zero reset Gain change Zero reset memory

Non-measurement settings

Clamp value
setting

All the special functions will be displayed if

If the connected sensor head is the Through-beam type,

will be displayed.

Auto scale *4

*4 Displayed only when the

connected sensor head is the
Through-beam type.

p.85

p.42

Display digit limit

Previous value
comparison *2

*2 Displayed if the hold function

is not set to OFF.

p.83

is selected.

41

ZX-L-N

User’s Manual

Section 3 Function Transition Charts

Section 3

BASIC OPERATION

p.78

p.108

p.108

p.81

p.81

p.81

p.104

p.78

p.123

p.104

Delay hold

Delay time Sampling period

Timer

Timer time

Self-trigger level

Self-trigger
hysteresis width

Special Initialization 2-sensor operation *3

Thickness
setting mode

*3 Displayed on non-CH1

Amplifier Units if two or
more Amplifier Units are
connected.

This symbol requests you to move to another
menu using the LEFT or RIGHT Key after
pressing the ENT Key to confirm the selections.

42

Section 3 Setting the Auto Scale

ZX-L-N

User’s Manual

Section 3
BASIC OPERATION

Setting the Auto Scale

This setting is required only when the Sensor Head is the Through-beam type.

The auto scale function allows you to select whether the received light amount is to be

displayed in mm or in % in the main display. It also allows you to select whether the received

light amount or blocked light amount is to be displayed.

When the auto scale is set, the maximum received (blocked) light amount to be displayed will

be automatically scaled, and then it is displayed and output.

If the two-point scaling function is used, auto scale setting is not necessary.

Two-point Scaling p.72

Selection Options Remarks

-

The full scale that is
suitable for the
sensor head's
measuring width
must be selected.
Example: If ZX­LT005 is used, [5-L]
or [5-d] must be
selected.

-

100-L

5mm

10mm

30mm

100%

Received light
amount: L

Blocked
light
amount: d

L: Displays and outputs the

received light amount.

d: Displays and outputs the blocked

light amount.

5: Sets the full scale to 5mm.

10: Sets the full scale to 10mm.

30: Sets the full scale to 30mm.

100: Sets the full scale to 100%.

43

ZX-L-N

User’s Manual

Section 3 Setting the Auto Scale

Section 3

BASIC OPERATION

Display/Output Examples

Example: Relationship between the received light amount and displayed value when auto

scale is set to [5-L] or [5-d].

• The default setting at shipment is 100-L.

• If you want to display the received light amount in a width other than “0 to 5mm”, “0 to 10mm” and “0 to

30mm”, the two-point scaling function must be used.

Two-point Scaling p.72

• Auto scale must be set first. When auto scale is set, some settings (e.g. monitor focusing) are initialized.

Selection

Display Contents on Amplifier

Unit

When light is

100% received

When light is

50% received

When light is

100% blocked

Remarks

5-L Displays the received light

amount in 0 to 5mm.

5.000 2.500 0.000 The linear output
function is set so
that the maximum
output value is
displayed for the
maximum display
value and the
minimum output
value for the
minimum display
value.

5-d Displays the blocked light

amount in 0 to 5mm.

0.000 2.500 5.000

10-L Displays the received light

amount in 0 to 10mm.

10.000 5.000 0.000

10-d Displays the blocked light

amount in 0 to 10mm.

0.000 5.000 10.000

30-L Displays the received light

amount in 0 to 30mm.

30.000 15.000 0.000

30-d Displays the blocked light

amount in 0 to 30mm.

0.000 15.000 30.000

100-L Displays the received light

amount in 0 to 100%.

100.00 50.00 0.00

100-d Displays the blocked light

amount in 0 to 100%.

0.00 50.00 100.00

100

0

5

0

0

5

Displayed value
(mm)

Received light amount
(%)

Set to
[5-d]

Set to
[5-L]

44

Section 3 Setting the Auto Scale

ZX-L-N

User’s Manual

Section 3
BASIC OPERATION

Moving to FUN Mode and AUTOS

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT Keys to display

[AUTOS] on the main display.

Setting the Auto Scale

3. Press the UP or DOWN Key.

The sub-display will flash.

4. Select the desired auto scale.

5. Press the ENT Key to confirm the setting.

The selected auto scale will be set.

(mm)

LDON ENABLEZERO

SUB

SUB

SUB

45

ZX-L-N

User’s Manual

Section 3 Setting the Standard Received Light Amount

Section 3

BASIC OPERATION

Setting the Standard Received Light Amount

This function can be used only when the Sensor Head is the Through-beam type.

The current received light amount can be set as the standard received light amount.

The standard received light amount must be set after installation of the sensor head and

adjustment of optical axis. The amount of light input after the standard received light amount is

set will be set to the full scale (F.S.).

Example: When 85% is displayed for the received light amount after completion of optical axis

adjustment

• Setting of the standard received light amount must be carried out while zero reset is not in progress (i.e.

while the zero reset indicator is not lit).

• When the standard received light amount is set, the main display and linear outputs (current, voltage) will

be set to the full scale (F.S.) automatically.

• Setting of the standard received light amount can be done when the glass on the emitter/receiver gets dirty

or when the received light amount has changed.

• If the mount position of the sensor head is changed, the standard received light amount must be set again.

Moving to RUN Mode

1. Set the mode switch to RUN.

Setting the Standard Received Light Amount

2. Hold down the DOWN Key for more than

three seconds.

The standard received light amount that has been set will

be stored in the memory of the Amplifier Unit.

[85.00] is displayed in the main display
with the Amplifier Unit set to RUN
mode.

The current light input amount will be
set to the full scale, and the main
display shows [100.00].
When the standard received light
amount is set, [SETST] is displayed in
the sub-display.

Set the standard received
light amount.

(mm)

LDON ENABLEZERO

46

Section 3 Measuring the Received Light Amount (Intensity Mode)

ZX-L-N

User’s Manual

Section 3
BASIC OPERATION

Measuring the Received Light Amount
(Intensity Mode)

This function can be used only when the sensor head is the Reflective type.

In the intensity mode, the received amount of light returning from the object can be displayed

in the main display.

The intensity mode can be used when you want to detect changes in the color or material of

the object. In the intensity mode, distance measurement is not possible.

• With the intensity mode, all processing, including 2-sensor operation, hold, threshold judgement and linear

outputs, will be performed on the received light amount.

• To use intensity mode, intensity mode must be set first. When intensity mode is set, some settings (e.g.

monitor focusing) are initialized.

• To use intensity mode, the measurement gain must be fixed to an option other than AUTO.

Setting the Measurement Sensitivity (Gain Switching) p.74

Moving to FUN Mode and SPCL

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT Keys to display

[SPCL] on the main display.

Moving to INTN

3. Press the UP or DOWN Key.

The sub-display will flash.

4. Use the UP and DOWN Keys to display [SET]

or [ALL].

5. Press the ENT Key.

6. Use the LEFT and RIGHT Keys to display

[INTN] on the main display.

(mm)

LDON ENABLEZERO

SUB

SUB

SUB

(mm)

LDON ENABLEZERO

47

ZX-L-N

User’s Manual

Section 3 Measuring the Received Light Amount (Intensity Mode)

Section 3

BASIC OPERATION

Switching to Intensity Mode

7. Press the UP or DOWN Key.

The sub-display will flash.

8. Use the UP and DOWN Keys to display [ON].

9. Press the ENT Key to confirm the setting.

The Sensor Head will be set to intensity mode.

SUB

SUB

SUB

48

Section 3

ZX-L-N

User’s Manual

Section 3
BASIC OPERATION

MEMO

Section 4 MAIN APPLICATIONS AND SETTING METHODS

49

ZX-L-N

User’s Manual

Section 4
MAIN APPLICATIONS AND SETTING
METHODS

Measuring Height 50

Measuring Thickness 54

Measuring Eccentricity and Vibration 58

Measuring Edges 61

50

Section 4 Measuring Height

ZX-L-N

User’s Manual

Section 4
MAIN APPLICATIONS AND SETTING METHODS

Measuring Height

This section describes how to measure the height of an object, using a PCB mold as an

example.

Flow of Operation

Place an actual sensing object in position. Have a reference sample ready beforehand.

Mold

PCB

1

2

3

5

Mounting to

Device

Adjusting Setting

Position

Measuring

Reference

Samples

Setting

Measurement

Timing

Setting Tolerance

Judgement

Values

4

51

ZX-L-N

User’s Manual

Section 4 Measuring Height

Section 4

MAIN APPLICATIONS AND SETTING METHODS

Mounting to Device

Mount the Sensor Head to the inspection device.

When mounting the sensor, take care not to exert pressure on the sensor head and

wires.

Installing Sensor Heads p.18

Adjusting Setting Position

Place the reference sample in position and adjust the Sensor Head position. Refer to

the Amplifier Unit's display or Sensor Head's indicators, and adjust the Sensor Head

position so that the upper and lower limits of the height (H) to be measured fall within

the measuring range.

Measuring range p.130

Measured Value Display

The Amplifier Unit display shows the distance (D) from the reference sample.(Default)

The display can also be set to show the height (H) of the reference sample.

Changing Display Scales p.67

D

H

52

Section 4 Measuring Height

ZX-L-N

User’s Manual

Section 4
MAIN APPLICATIONS AND SETTING METHODS

Setting Measurement Timing

Use the bottom hold function to hold the minimum value (bottom) during the sampling

period.

When the timing signal cannot be input from the device, set a self-down trigger.

The following settings are required when the reference sample height is displayed using the scaling

function:

Measurement trigger: Self-up trigger

Hold condition: Peak hold

Refer to Section 5 Detailed Settings for details on settings.

Using Hold Functions p.76

v

t

Measured value

Self-trigger level

The bottom value is held.

Sampling

53

ZX-L-N

User’s Manual

Section 4 Measuring Height

Section 4

MAIN APPLICATIONS AND SETTING METHODS

Measuring Reference Samples

The height of the reference sample is measured using position teaching and the

measurement result is registered as the HIGH threshold value.

The registered value becomes the reference for the threshold value set in step .

Refer to Section 5 Detailed Settings for details on settings.

Position Teaching p.90

The reference sample height can also be set to 0.

Using the Zero Reset Function p.116

Setting Tolerance Judgement Values

Refer to the HIGH threshold registered in step and set the upper and lower limits

(HIGH and LOW thresholds) for a PASS (OK) judgement.

The HIGH, PASS, and LOW judgement results will be output based on the threshold

values set here.

Refer to Section 5 Detailed Settings for details on operation.

Inputting Threshold Values Directly p.89

Measurement Result Judgement

Measurement result > HIGH threshold HIGH

LOW threshold ≤ Measurement result ≤

HIGH threshold PASS

LOW threshold > Measurement result LOW

54

Section 4 Measuring Thickness

ZX-L-N

User’s Manual

Section 4
MAIN APPLICATIONS AND SETTING METHODS

Measuring Thickness

This section describes how to measure thickness, using the thickness of a steel plate as an

example.

Flow of Operation

Steel plate

1

2

3

4

Mounting to

Device

Adjusting Setting

Distances

Setting Tolerance

Judgement

Values

Setting

Expressions

55

ZX-L-N

User’s Manual

Section 4 Measuring Thickness

Section 4

MAIN APPLICATIONS AND SETTING METHODS

Mounting to Device

 Connecting Amplifier Units

Connect two Amplifier Units by placing a Calculating Unit between them as shown in

the diagram.

The calculation result is displayed on (i.e., output to) the CH2 Amplifier Unit. Connect

the CH2 output cable to the external device to enable external control.

Connections p.21

The CH1 Amplifier Unit will display (output) the measurement result for the CH1 Sensor Head only.

If the Amplifier Units are connected, mutual interference between the Sensor Heads can also be

prevented.

 Mounting Sensor Heads to Inspection Device

Mount the Sensor Heads to the steel plate in such a way that they face each other as

shown below.

Installing Sensor Heads p.18

Calculating Unit

CH1

CH2

Steel plate

56

Section 4 Measuring Thickness

ZX-L-N

User’s Manual

Section 4
MAIN APPLICATIONS AND SETTING METHODS

Adjusting Setting Distances

Set a reference sample with a known thickness (T).

Adjust the position of the Sensor Heads so that the distances (A, B) between the

reference sample and the Sensor Heads are about the measuring center distance of

the corresponding Sensor Head. Refer to the Amplifier Unit's display while adjusting

the Sensor Head position.

Measuring range p.130

Setting Expressions

Position the reference sample and set the expression to calculate the thickness of the
reference sample.
The settings are made on the CH2 Amplifier Unit.
Select [THICK] as the expression type and enter the thickness (T) of the reference
sample.

When the thickness is entered, the positional relationship between the Sensor Heads

at that point will be registered. The thickness is measured based on the positional

relationship of the Sensor Heads.

Refer to Section 6 Auxiliary Functions for details on settings.

Performing Calculations p.108

T

B

A

T

57

ZX-L-N

User’s Manual

Section 4 Measuring Thickness

Section 4

MAIN APPLICATIONS AND SETTING METHODS

Setting Tolerance Judgement Values

Set the upper and lower limits (HIGH and LOW thresholds) for the thickness for a PASS

(OK) judgement.

The HIGH, PASS, and LOW judgement results will be output based on the threshold

values set here.

Refer to Section 5 Detailed Settings for details on operation.

Inputting Threshold Values Directly p.89

Measurement Result Judgement

Measurement result > HIGH threshold HIGH

LOW threshold ≤ Measurement result ≤

HIGH threshold PASS

LOW threshold > Measurement result LOW

58

Section 4 Measuring Eccentricity and Vibration

ZX-L-N

User’s Manual

Section 4
MAIN APPLICATIONS AND SETTING METHODS

Measuring Eccentricity and Vibration

This section describes, as an example, how to measure the eccentricity of a motor shaft.

Flow of Operation

Motor shaft

1

2

3

4

Mounting to

Device

Adjusting Setting

Position

Setting Tolerance

Judgement

Values

Measuring

Deflection

59

ZX-L-N

User’s Manual

Section 4 Measuring Eccentricity and Vibration

Section 4

MAIN APPLICATIONS AND SETTING METHODS

Mounting to Device

Mount the Sensor Head to the inspection device.

When mounting the sensor, take care not to exert pressure on the sensor head and

wires.

Installing Sensor Heads p.18

Adjusting Setting Position

Adjust the position of the Sensor Head so that the distance (D) between the Sensor

Head and the sensing object is about the measuring center distance, as shown in the

diagram. Refer to the Amplifier Unit display while adjusting the Sensor Head position.

Measuring range p.130

D

60

Section 4 Measuring Eccentricity and Vibration

ZX-L-N

User’s Manual

Section 4
MAIN APPLICATIONS AND SETTING METHODS

Measuring Deflection

Use the peak-to-peak hold function to measure the normal deflection.

Rotate the motor shaft, input a timing signal from an external device, and measure the

deflection.

The difference between the maximum and minimum measurement results (the

deflection) will be used as a reference when setting tolerances.

Refer to Section 5 Detailed Settings for details on settings.

Using Hold Functions p.76

Setting Tolerance Judgement Values

Refer to the deflection measured in step and set either the upper limit (HIGH

threshold) or lower limit (LOW threshold) for a PASS (OK) judgement.

The judgement result will be output based on the threshold value set here. The output

will depend on the type of threshold set.

Output when upper limit is set: PASS or HIGH

Output when lower limit is set: PASS or LOW

Refer to Section 5 Detailed Settings for details on operation.

Inputting Threshold Values Directly p.89

v

t

Measured value

Deflection

Timing input

Measurement Result Judgement

Measurement result > HIGH threshold HIGH

LOW threshold ≤ Measurement result ≤

HIGH threshold PASS

LOW threshold > Measurement result LOW

61

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User’s Manual

Section 4 Measuring Edges

Section 4

MAIN APPLICATIONS AND SETTING METHODS

Measuring Edges

This section describes, as an example, how to measure the edges of a rubber sheet.

Flow of Operation

Rubber sheet

1

2

3

4

5

Mounting to

Device

Setting Auto

Scale

Measuring

Reference

Samples

Setting the

Standard Received

Light Amount

Setting Tolerance

Judgement

Val ues

62

Section 4 Measuring Edges

ZX-L-N

User’s Manual

Section 4
MAIN APPLICATIONS AND SETTING METHODS

Mounting to Device

Mount the Sensor Head to the inspection device.
When mounting the sensor, take care not to exert pressure on the sensor head and
wires.

Installing Sensor Heads p.18

Setting Auto Scale

Decide whether to display the received light amount in mm or in % in the Amplifier
Unit's main display.

Setting the Auto Scale p.42

Example: To display 5mm as the current input light amount (85%)

Setting the Standard Received Light Amount

With 100% laser input from the emitter to the receiver, set the standard received light
amount.
When the standard received light amount is set, the main display and linear outputs
(current, voltage) will be set to the full scale (F.S.) automatically.

Setting the Standard Received Light Amount p.45

Example: Setting the standard received light amount after setting auto scale to

[5-L] in step

(mm)

LDON ENABLEZERO

(mm)

LDON ENABLEZERO

Before auto scale is set Auto scale is set to [5-L].

Since 100% is equivalent to 5.000mm,

[4.250] will be displayed in the case of 85%.

2

(mm)

LDON ENABLEZERO

(mm)

LDON ENABLEZERO

Before the standard received light
amount is set

After the standard received light
amount is set

The current input light amount (85%) will be set to

the full scale (F.S.) and [5.000] will be displayed.

63

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Section 4 Measuring Edges

Section 4

MAIN APPLICATIONS AND SETTING METHODS

Measuring Reference Samples

The edge of the reference sample is measured using position teaching and the

measurement result is registered as the HIGH threshold value.

The registered value becomes the reference for the threshold value set in step .

Refer to Section 5 Detailed Settings for details on settings.

Position Teaching p.90

The reference sample edge can also be set to 0.

Using the Zero Reset Function p.116

Setting Tolerance Judgement Values

Refer to the HIGH threshold registered in step and set the upper and lower limits

(HIGH and LOW thresholds) for a PASS (OK) judgement.

The HIGH, PASS, and LOW judgement results will be output based on the threshold

values set here.

Refer to Section 5 Detailed Settings for details on operation.

Inputting Threshold Values Directly p.89

Measurement Result Judgement

Measurement result > HIGH threshold HIGH

LOW threshold ≤ Measurement result ≤

HIGH threshold PASS

LOW threshold > Measurement result LOW

64

Section 4

ZX-L-N

User’s Manual

Section 4
MAIN APPLICATIONS AND SETTING METHODS

MEMO

Section 5 DETAILED SETTINGS

65

ZX-L-N

User’s Manual

Section 5
DETAILED SETTINGS

Setting Number of Samples to Average 66

Changing Display Scales 67

Setting the Measurement Sensitivity (Gain Switching) 74

Using Hold Functions 76

Comparing Measured Values (Differentiation Function) 83

Comparing Measured Values
(Previous Value Comparisons) 86

Entering Threshold Values 88

Linear Output 95

Setting Judgement Output Timing (Timer) 104

66

Section 5 Setting Number of Samples to Average

ZX-L-N

User’s Manual

Section 5
DETAILED SETTINGS

Setting Number of Samples to Average

The average of the measured values obtained based on the preset number of samples can be

output. This setting can be used when you want to ignore rapid changes in measured values.

If this setting is made, response time for judgement and linear outputs will drop.

Moving to FUN mode and AVE

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT Keys to display

[AVE] on the main display.

Selecting Number of Samples to Average

3. Press the UP or DOWN Key.

The sub-display will flash.

4. Use the UP and DOWN Keys to select the

desired number of samples to average.

5. Press the ENT Key to confirm the setting.

The setting will be registered.

Selection for No. of

samples to average

Response time

1 0.3 ms

2 0.5 ms

4 0.8 ms

8 1.5 ms

16 2.5 ms

32 5 ms

64 10 ms

128 20 ms

256 40 ms

512 75 ms

1024 150 ms

2048 300 ms

4096 600 ms

In the case of Reflective Type Sensor Head, the

number of samples to average has been set to

256 prior to shipment from the factory.

In the case of Through-beam Type Sensor Head,

the number of samples to average has been set to

32 prior to shipment from factory.

In general, when the number of samples to average is

multiplied by “n”, the resolution will increase by .

n

(mm)

LD ON ENABLEZERO

SUB

SUB

SUB

67

ZX-L-N

User’s Manual

Section 5 Changing Display Scales

Section 5

DETAILED SETTINGS

Changing Display Scales

Change the display scale when you want to display a value on the main display that is different

from the actual measured value.

Place an actual sensing object in position.

Two setting methods are available: one-point and two-point scaling methods.

• The scaling set here is reflected in the display only.

If you want to change the linear output of the displayed value, the monitor focus function must be used.

The minimum display value is -19999, and the maximum display value is 59999. Values (scaling

correction values) that exceed the minimum or maximum display value even if the object is located within

the measuring range cannot be set. An error will occur if such a value is set.

p.95

• To calculate the thickness, refer to “Performing Calculations” in “Measuring with Multiple Amplifier Units”.

p.108

Scaling Application Example

Purpose Method

To display the height of the sensing object
(Through-beam type sensor head)

Offset the display value. One-point

scaling
(Not
inverted.)

p.69

To display the height of the sensing object
(Reflective type sensor head)

Offset the display value and invert the
relationship between display and reference
values.

One-point
scaling
(Inverted)

p.69

Sensing
object

Height of sensing object

15mm

Light block width
6mm

Emitter Receiver

6

15

6

0

Displayed value

(mm)

Actual measured

value

(mm)

Sensor head

Sensing

object

Value to be

displayed

50mm

Actual measured
value
40mm

40

40

50

Displayed value

(mm)

Actual

measured

value

(mm)

68

Section 5 Changing Display Scales

ZX-L-N

User’s Manual

Section 5
DETAILED SETTINGS

The settings listed below return to the default settings when scaling is set.

Make the settings for these items after scaling settings have been completed.

Self-trigger level, p.78
Monitor focus p.95
Zero Reset, p.116
Thickness setting (calculation) p.108

To correct display values to match actual
distances
(Reflective type sensor head)

Offset the display value and change the display
value range.

Two-point
scaling

p.72

To correct display values to match actual
distances
(Through-beam type sensor head)

Two-point
scaling

p.72

Scaling Application Example

Purpose Method

Sensor head

Actual distance: 40mm
Displayed value: 38mm

Sensing

object

Sensing

object

Actual distance: 32mm
Displayed value: 33mm

Sensor head

40

38

33
32

32 40

Displayed value
(mm)

Actual

measured

value
(mm)

Sensing
object

Emitter Receive

Emitter Receiver

Sensing
object

Actual distance: 2.5mm

Displayed value: 2mm

Actual distance: 8mm
Displayed value: 7mm

2.5 8

2

2.5

7

8

Displayed value
(mm)

Actual

measured

value
(mm)

69

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Section 5 Changing Display Scales

Section 5

DETAILED SETTINGS

One-point Scaling

Measurement is performed at one position and offset values are set for that

measurement.

The offset and increment/decrement inversion (display inversion) can be set.

This section describes how to set one-point scaling, using an example of correcting

display values to match actual distances.

Example: Displaying the Height of the Sensing Object

Moving to FUN Mode and SCALE

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT Keys to display

[SCALE] on the main display.

Executing Scaling

3. Press the UP or DOWN Key.

The sub-display will flash.

4. Use the UP and DOWN Keys to display [ON].

40

40

50

Sensing

object

Displayed value

(mm)

Actual measured

value

(mm)

Actual measured

value

40mm

Sensor head

Value to be

displayed

50mm

(mm)

LD ON ENABLEZERO

SUB

SUB

70

Section 5 Changing Display Scales

ZX-L-N

User’s Manual

Section 5
DETAILED SETTINGS

5. Press the ENT Key to confirm the setting.

The sub-display will show [P1SCL].

6. Set the sensing object at the position where

the display value change is required.

Set the sensing object within the measurement distance. The ENABLE indicator will be lit when the

sensing object is within the measurement distance. Scaling is not possible if the sensing object is

not within the distance.

7. Press any Cursor Key.

The current measured value will be displayed on the

main display.

The leftmost digit of the sub-display will flash.

8. Use the Cursor Keys to set the offset for the

measured value in the sub-display.

The position of the decimal point can be changed using

the next steps.

9. Press the ENT Key to confirm the setting.

The decimal point will flash.

10. Use the LEFT and RIGHT Keys to change

the position of the decimal point, if necessary.

11. Press the ENT Key to confirm the setting.

The inverted display settings will appear on the sub-

display.

SUB

(mm)

LD ON ENABLEZERO

SUB

(mm)

LD ON ENABLEZERO

Moves from one digit to

another.

Changes the current value.

SUB

SUB

71

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Section 5 Changing Display Scales

Section 5

DETAILED SETTINGS

Selecting Inverted Display

12. Use the UP and DOWN Keys to select the

inverted display function.

13. Press the ENT Key to confirm the setting.

The sub-display will be [P2SCL].

14. Press the ENT Key.

Confirming that Scaling Is Completed

If scaling has been completed correctly, the display will

be [OK].

If scaling was unable to be completed, the display will be

[NG].

Check that the sensing object is within the measurement

range and execute scaling again.

Selection Details

D-FWD Not inverted.

The larger the distance between the Sensor
Head and the object, the larger the measured
value displayed on the Amplifier Unit.

D-INV Inverted

The larger the distance between the Sensor
Head and the object, the smaller the
measured value displayed on the Amplifier
Unit.

SUB

SUB

SUB

(mm)

LD ON ENABLEZERO

SUB

(mm)

LD ON ENABLEZERO

72

Section 5 Changing Display Scales

ZX-L-N

User’s Manual

Section 5
DETAILED SETTINGS

Two-point Scaling

Measurement is performed at two positions and offset values are set for those
measurements.
Both an overall offset can be set and the range can be changed.
This section describes how to set two-point scaling, using an example of correcting
display values to match actual distances.
Example: Correcting Display Values to Match Actual Distances

Separate the two specified points by at least 1% of the rated measurement range for the connected
Sensor.
For example, the rated measurement range for the ZX-LD40 Sensor is 20 mm. Therefore, the two
specified points must be separated by 0.2 mm min.

Setting the First Point

1. Set the first point by following steps 1. to 11.

of the one-point scaling procedure.

p.69

The range for two-point scaling is automatically

set based on the values entered for the two

points. Inverted display settings are ignored.

40

38

33
32

32 40

Displayed

value
(mm)

Actual measured
value (mm)

Sensor head

Sensing

object

Sensing

object

Sensor head

Actual distance: 32mm
Displayed value: 33mm

Actual distance: 40mm
Displayed value: 38mm

73

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Section 5 Changing Display Scales

Section 5

DETAILED SETTINGS

Setting the Second Point

2. Place the sensing object in the position for which the display is to be changed (the

second point).

The sensing object must be set at a distance at

least 1% of the rated measurement range away

from the first point and also at a distance within

the measurement range.

3. Press any Cursor Key.

The current measured value will be displayed on the

main display.

The leftmost digit of the sub-display will flash.

4. Use the Cursor Keys to set the offset for the

measured value.

The position of the decimal point can be changed using

the next steps.

5. Press the ENT Key to confirm the setting.

The decimal point will flash.

6. Use the LEFT and RIGHT Keys to move the

decimal point.

7. Press the ENT Key to confirm the setting.

Confirming the Completion of the Scaling Settings

If scaling has been completed correctly, the display will

be [OK].

If scaling was unable to be completed, the display will be

[NG].

Check the following points and then execute scaling

again.

• Is the sensing object within the measurement range?

• Are the two points separated by at least 1% of the

rated measurement range?

SUB

(mm)

LD ON ENABLEZERO

Moves from one digit to

another.

Changes the current value.

SUB

SUB

(mm)

LD ON ENABLEZERO

SUB

(mm)

LD ON ENABLEZERO

74

Section 5 Setting the Measurement Sensitivity (Gain Switching)

ZX-L-N

User’s Manual

Section 5
DETAILED SETTINGS

Setting the Measurement Sensitivity (Gain Switching)

This section describes how to set the measurement gain according to the surface condition of
the sensing object.
Setting the measurement gain to AUTO will automatically adjust the sensitivity to the optimum
level for the object.
If the amount of reflective sensor light on the object does not change excessively, stable
measurements can be carried out by fixing the measurement gain to an appropriate one.
Five measurement gains are available: [AUTO] for automatic adjustment, and [BLACK],
[WHITE], [METAL] and [MIROR], which are fixed measurement gains. In the case of fixed
measurement gains, the measurement sensitivity increases in the order [MIROR], [METAL],
[WHITE], [BLACK], [MIROR] with the lowest measurement sensitivity and [BLACK] with the
highest measurement sensitivity.

For [AUTO] measurement gain

For fixed measurement gains (other than [AUTO])

AUTO can be set only when the Sensor Head is the Reflective type and the intensity mode is disabled.

Intensity mode p.46

Moving to FUN Mode and SPCL

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT Keys to display

[SPCL] on the main display.

When the received light
amount is not sufficient

When the received light
amount is excessive

Large gain Small gain

Switched

automatically

When the received light
amount is not sufficient

When the received light
amount is appropriate

When the received light

amount is excessive

Saturated
received light
amount

(An error occurs,
and the main
display will show
[E-BRT].)

Within
allowable
received light
amount
range

(Measurement
possible)

Insufficient
received light
amount

(An error
occurs, and the
main display
will show
[E-DRK].)

(mm)

LD ON ENABLEZERO

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Section 5 Setting the Measurement Sensitivity (Gain Switching)

Section 5

DETAILED SETTINGS

Moving to GAIN

3. Press the UP or DOWN Key.

The sub-display will flash.

4. Use the UP and DOWN Keys to display

[ETC] or [ALL].

5. Press the ENT Key.

6. Use the LEFT and RIGHT Keys to display

[GAIN] on the main display.

Setting the Measurement Gain

7. Press the UP or DOWN Key.

The sub-display will flash.

8. Select the desired measurement gain.

9. Press the ENT Key to confirm the setting.

The selected measurement gain will be set.

SUB

SUB

SUB

(mm)

LD ON ENABLEZERO

SUB

SUB

SUB

76

Section 5 Using Hold Functions

ZX-L-N

User’s Manual

Section 5
DETAILED SETTINGS

Using Hold Functions

The hold functions hold data for specific points during the measurement period, such as the

maximum or minimum value, and output those values at the end of the measurement period.

Flow of Operation

Selecting Hold Condition for Measured Values

The time period from the start of hold measurements to the end of hold measurements

is called the sampling period.

The value to be held during that sampling period is selected here.

The CLAMP value is output until the first sampling period is finished.

CLAMP value p.102

Any of the 5 settings shown in the table can be selected as the value to hold.

1

2

3

Selecting Hold

Condition for

Measured Values

Setting the Trigger

for Measurement in

Hold Mode

Setting Delay Time

(If required)

Selection Details

OFF
(Default)

Hold measurement is not performed. The measured value is always output.

P-H (Peak hold) Holds the maximum value during the sampling period. The output changes at the

end of the sampling period and is held until the end of the next sampling period.

B-H (Bottom hold) Holds the minimum value during the sampling period. The output changes at the

end of the sampling period and is held until the end of the next sampling period.

Current

measured value

Maximum
value

Sampling period

Output

Current

measured value

Minimum
value

Sampling period

Output

77

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User’s Manual

Section 5 Using Hold Functions

Section 5

DETAILED SETTINGS

Moving to FUN mode and HOLD

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT Keys to display

[HOLD] on the main display.

Selecting Hold Condition

3. Press the UP or DOWN Key.

The sub-display will flash.

4. Use the UP and DOWN Keys to select the

desired hold condition.

5. Press the ENT Key to confirm the setting.

The setting will be registered.

PP-H (Peak-to-peak
hold)

Holds the difference between the maximum and minimum values. This option is
selected mainly when detecting vibration. The output changes at the end of the
sampling period and is held until the end of the next sampling period.

S-H (Sample hold) Holds the measured value at the start of the sampling period. The output

changes at the start of the sampling period and is held until the start of the next
sampling period.

AVE-H (Average hold) Holds the average measured value during the sampling period. The output

changes at the end of the sampling period and is held until the end of the next
sampling period.

Selection Details

Sampling period

Current

Maximum
value

Minimum
value

Output (maximum value

- minimum value)

Sampling period

Current

measured value

Output

Sampling period

Current

measured value

Output (average of

measured values)

(mm)

LD ON ENABLEZERO

SUB

SUB

SUB

78

Section 5 Using Hold Functions

ZX-L-N

User’s Manual

Section 5
DETAILED SETTINGS

Setting the Trigger for Measurement in Hold Mode

Select the input method for the timing of the start and end of the measurement period.

• Set the hysteresis width based on the fluctuations in the measured values around the trigger

level. The hysteresis will be applied from the start of the sampling period and will prevent timing

input chattering.

• Zero reset input will be invalid during sampling or while [-----] is displayed in the main display.

• The timing input signal will be ignored if the self-trigger level is set to [UP] or [DOWN]. However,

sampling will not be affected.

Selection Details

TIMIG
(Timing input)

(Default)

Enter the trigger for the start of sampling by using the timing input. The period
that the timing signal is ON is the sampling period.

When a delay time is set, the input OFF timing and the end of the

sampling period will not be synchronous. Sampling will end after the

specified sampling period has expired.

UP
(Self-up trigger)

The sampling period is the period that the measured value is greater than the
specified self-trigger level. Hold measurement is possible without a sync input.

When a delay time is set, the timing when the measured value becomes

smaller than the self-trigger level and the end of the sampling period will

not be synchronous. Sampling will end after the specified sampling

period has expired.

DOWN
(Self-down trigger)

The sampling period is the period that the measured value is lower than the
specified self-trigger level. Hold measurement is possible without a sync input.

When a delay time is set, the timing when the measured value becomes

greater than the self-trigger level and the end of the sampling period will

not be synchronous. Sampling will end after the specified sampling

period has expired.

ON

OFF

Sampling period

Timing input

Sampling period Sampling period

Self-trigger
level

Measured

value

Operation point

Hysteresis width
(For self-trigger)

Return point

Self-trigger
level

Measured

value

Sampling period

Operation point
Return point

Hysteresis width
(For self-trigger)

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Section 5 Using Hold Functions

Section 5

DETAILED SETTINGS

Selecting Trigger Types

1. Use the LEFT and RIGHT Keys to display

[H-TRG] on the main display.

[H-TRG] will not be displayed if the delay conditions are

set to OFF.

2. Press the UP or DOWN Key.

The sub-display will flash.

3. Use the UP or DOWN Key to select the

desired trigger type.

4. Press the ENT Key to confirm the setting.

The selected trigger type will be registered.

Setting Trigger Levels (when UP or DOWN Is Selected)

5. Use the RIGHT or LEFT Key to display

[H-LVL] on the main display.

[H-LVL] will not be displayed if timing input [TIMIG] is set

as the trigger.

6. Press the UP or DOWN Key.

The leftmost digit of the sub-display will flash.

7. Use the Cursor Keys to set the desired trigger

level.

8. Press the ENT Key to confirm the setting.

The trigger level will be registered.

(mm)

LD ON ENABLEZERO

SUB

SUB

SUB

(mm)

LD ON ENABLEZERO

SUB

Moves from one digit to

another.

Changes the current value.

SUB

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Section 5 Using Hold Functions

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User’s Manual

Section 5
DETAILED SETTINGS

Setting Hysteresis Width (when UP or DOWN Is Selected)

9. Use the LEFT and RIGHT Keys to display

[H-HYS] on the main display.

[H-HYS] will not be displayed if timing input [TIMIG] is set

as the trigger.

10. Press the UP or DOWN Key.

The leftmost digit of the sub-display will flash.

11. Use the Cursor Keys to set the hysteresis

width for the trigger level.

12. Press the ENT Key to confirm the setting.

The hysteresis width will be registered.

(mm)

LD ON ENABLEZERO

SUB

Moves from one digit to

another.

Changes the current value.

SUB

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Section 5 Using Hold Functions

Section 5

DETAILED SETTINGS

Setting Delay Time

Delay time is set to ignore measurements immediately after the timing input. This is

useful for avoiding bounding during device startup and the influence of machine

vibration.

The delay time (the delay between timing input and the start of sampling) and the

sampling period can be set.

The default delay time setting is [OFF].

Make the sum of the delay time and sampling period less than the timing input ON interval.

If the next timing input for measurement is received before the delay and sampling period have

passed, that timing input will be ignored and will not be reflected in the sampling.

Moving to Delay Hold (H-DLY)

1. Use the LEFT and RIGHT Keys to display

[H-DLY] on the main display.

[H-DLY] will not be displayed if the delay conditions are

set to [OFF].

2. Press the UP or DOWN Key.

The sub-display will flash.

3. Use the UP and DOWN Keys to display [ON].

4. Press the ENT Key.

The settings mode for the H-DLY function is now

enabled.

ON

OFF

Ignored Accepted

Delay time

Sampling period

Delay time

Timing input

(mm)

LD ON ENABLEZERO

SUB

SUB

SUB

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Section 5 Using Hold Functions

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User’s Manual

Section 5
DETAILED SETTINGS

Setting Delay Time

5. Use the LEFT and RIGHT Keys to display

[H-D-T] on the main display.

[H-D-T] will not be displayed if the H-DLY function is set

to [OFF].

6. Press the UP or DOWN Key.

The leftmost digit of the sub-display will flash.

7. Enter the delay time (ms).

8. Press the ENT Key to confirm the setting.

The delay time will be registered.

Setting the Sampling Period

9. Use the LEFT and RIGHT Keys to display

[H-S-T] on the main display.

[H-S-T] will not be displayed if the H-DLY function is set

to [OFF].

10. Press the UP or DOWN Key.

The leftmost digit of the sub-display will flash.

11. Use the Cursor Keys to enter the sampling

period (ms).

12. Press the ENT Key to confirm the setting.

The sampling period will be registered.

(mm)

LD ON ENABLEZERO

SUB

Moves from one digit to

another.

Changes the current value.

SUB

(mm)

LD ON ENABLEZERO

SUB

Moves from one digit to

another.

Changes the current value.

83

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User’s Manual

Section 5 Comparing Measured Values (Differentiation Function)

Section 5

DETAILED SETTINGS

Comparing Measured Values (Differentiation
Function)

Use the differentiation function to detect only sudden changes in the measured values that

occur during very short periods of time.

The differentiation function detects changes between the present value and the measured

value that is in effect just before the comparing pitch. The coefficient of this comparing pitch is

defined as the differentiation cycle.

The relationship between the differentiation cycle and comparing pitch can be calculated by

the following equation.

Comparing pitch = Differentiation cycle x 150µs

Example: When differentiation cycle = 10

If you want to detect changes in hold value, use the previous value comparison function.

Previous value comparison p.86

Moving to FUN Mode and SPCL

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT Keys to display

[SPCL] on the main display.

Present value

Sampling

Comparing pitch 1.5ms (150µs x 10)

Displayed value
(Differentiation
result)

Sampling time
(150µs)

(mm)

LD ON ENABLEZERO