Omron ZX2 Series User manual

Laser Displacement Sensors CMOS Type
Cat. No. Z310-E1-01
Smart Sensors
o
ZX2 Series
User’s Manual
Authorized Distributor:
In the interest of product improvement,
specifications are subject to change without notice.
Cat. No. Z310-E1-01 Printed in Japan
(1010)
OMRON Corporation Industrial Automation Company
Contact: www.ia.omron.com
Regional Headquarters
OMRON EUROPE B.V.
Tokyo, JAPAN
Sensor Business Unit
Carl-Benz-Str. 4, D-71154 Nufringen, Germany
Tel: [phone]/Fax: [phone]
OMRON ELECTRONICS LLC
One Commerce Drive Schaumburg,
IL 60173-5302 U.S.A.
Tel: [phone]/Fax: [phone]
OMRON ASIA PACIFIC PTE. LTD.
No. 438A Alexandra Road # 05-05/08 (Lobby 2),
Alexandra Technopark,
Singapore 119967
Tel: [phone]/Fax: [phone]
OMRON (CHINA) CO., LTD.
Room 2211, Bank of China Tower,
200 Yin Cheng Zhong Road,
PuDong New Area, Shanghai, 200120, China
Tel: [phone]/Fax: [phone]
© OMRON Corporation 2010 All Rights Reserved.

2ZF2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
CONTENTS
Introduction
Meanings of Signal Words. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Meanings of Alert Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Laser Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Precautions for Safe Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Precautions for Correct Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
How to Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PREPARATION FOR MEASUREMENT
Part Names and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Amplifier Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Sensor Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Calculating Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Installing Sensor Heads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Installing the Amplifier Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Connecting Calculating Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Connecting the Sensor Head to the Amplifier Unit . . . . . . . . . . . . . . . . . . . . . . . 27
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Wiring Input/Output Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
I/O Circuit Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
FLOW OF OPERATION
FLOW OF OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
BASIC SETUP
BASIC SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Display of RUN Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Simplest Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

3
ZF2 User’s Manual
INTRODUCTION
BASIC
SETUP
PREPARATION
FOR
MEASUREMENT
TROUBLE-
SHOOTING
INDEX
CONTENTS
SETTING
TRANSITION
CHARTS
FLOW OF
OPERATION
MAIN
APPLICATIONS
& SETTING
METHODS
DETAILED
SETTINGS
SPECIFI-
CATIONS
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
MAIN APPLICATIONS & SETTING METHODS
Height. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Steps and Warpage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Double Sheet Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Eccentricity and Surface Deflection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
DETAILED SETTINGS
Smart Tuning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Setting the Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Setting the Hold Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Bank Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Zero Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Analog Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Output for Non-measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
External Input for Bank, Timing Input, Reset Input . . . . . . . . . . . . . . . . . . 101
Mutual Interference Prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Key Lock Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Initializing Settings Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
TROUBLESHOOTING
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
SPECIFICATIONS
Specifications and Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Amplifier Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Sensor Heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Calculating Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Timing Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Engineering Data (Typical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Angle Characteristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Linearity Characteristic for Different Materials. . . . . . . . . . . . . . . . . . . . . . . . . . 123
Beam Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
SETTING TRANSITION CHARTS . . . . . . . . . . . . . . 130

4ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
Introduction
Thank you for purchasing the ZX2 Series Smart Sensor. This manual provides
information regarding functions, performance and operating methods that are required for
using the sensor.
When using the ZX2 Smart Sensor, make sure to observe the following:
• The ZX2 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.

5
ZX2 User’s Manual
INTRODUCTION
BASIC
SETUP
PREPARATION
FOR
MEASUREMENT
TROUBLE-
SHOOTING
INDEX
CONTENTS
SETTING
TRANSITION
CHARTS
FLOW OF
OPERATION
MAIN
APPLICATIONS
& SETTING
METHODS
DETAILED
SETTINGS
SPECIFI-
CATIONS
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
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 NON-INFRINGEMENT, 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.

6ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
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 your request. Please consult with your OMRON representative at any time to confirm
actual specifications of purchased products.

7
ZX2 User’s Manual
INTRODUCTION
BASIC
SETUP
PREPARATION
FOR
MEASUREMENT
TROUBLE-
SHOOTING
INDEX
CONTENTS
SETTING
TRANSITION
CHARTS
FLOW OF
OPERATION
MAIN
APPLICATIONS
& SETTING
METHODS
DETAILED
SETTINGS
SPECIFI-
CATIONS
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
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.

8ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
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.
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.

9
ZX2 User’s Manual
INTRODUCTION
BASIC
SETUP
PREPARATION
FOR
MEASUREMENT
TROUBLE-
SHOOTING
INDEX
CONTENTS
SETTING
TRANSITION
CHARTS
FLOW OF
OPERATION
MAIN
APPLICATIONS
& SETTING
METHODS
DETAILED
SETTINGS
SPECIFI-
CATIONS
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
ZX2-LD 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.

10 ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
The ZX2-LD Sensor Head is a Class 2 Laser Product according to EN 60825-1
(IEC 60825-1) and Class II Laser Product according to FDA (21 CFR1040.10) (see note).
The ZX2 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)
(1) ZX2-LD 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.

11
ZX2 User’s Manual
INTRODUCTION
BASIC
SETUP
PREPARATION
FOR
MEASUREMENT
TROUBLE-
SHOOTING
INDEX
CONTENTS
SETTING
TRANSITION
CHARTS
FLOW OF
OPERATION
MAIN
APPLICATIONS
& SETTING
METHODS
DETAILED
SETTINGS
SPECIFI-
CATIONS
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
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
• Do not attempt to dismantle, repair, or modify the product.
• Dispose of this product as industrial waste.
Precautions for Safe Use

12 ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
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 specifi-
cations 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 or 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 short-
circuit) and the load current is appropriate. Incorrect wiring may result in breakdown
of the product.
• The cables must be 10 m or shorter in total length, for both sensor head and ampli-
fier units. To extend the cable from the sensor head, an optional extension cable
(ZX2-XCR) must be used. For extension of the cable of amplifier units, shielded
cables of the same type must be used.
• When using calculating units, make sure that the linear GND lines of the amplifier
units are connected to each other.
Precautions for Correct Use

13
ZX2 User’s Manual
INTRODUCTION
BASIC
SETUP
PREPARATION
FOR
MEASUREMENT
TROUBLE-
SHOOTING
INDEX
CONTENTS
SETTING
TRANSITION
CHARTS
FLOW OF
OPERATION
MAIN
APPLICATIONS
& SETTING
METHODS
DETAILED
SETTINGS
SPECIFI-
CATIONS
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
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.
Sensing Object
The product cannot accurately measure the following types of objects: Transparent
objects, objects with an extremely low reflective sensor ratio, objects smaller than the
beam size, objects with a large curvature, excessively inclined objects, etc.
Mutual Interference
Inserting a calculating 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 calculating unit in order to prevent mutual interference, carry out a test
using the actual system beforehand.
Maintenance
• 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 exces-
sive force.
Scratches on the filter may cause errors.

14 ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
How to Use This Manual
Page Format
This section explains the page format by using the Setting for MAIN APPLICATIONS AND
SETTING METHODS chapter as an example.
Height
40 ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
Height
Procedure for setting up height
1Sensor installation/wiring
Has the Sensor been installed and wired? (See page 23.)
Set the reference workpiece in place, adjust the position of the Sensor Head while
looking at the digital display values on the Amplifier Unit or the indicators on the
Sensor Head so that the height to be measured is near the measuring center
distance, and install the Sensor Head at this position.
2Set to the MENU mode
Button
Operation Display Description of Operation Explanation of Selection Menu
Hold down the button for
three seconds to switch to the
MENU mode.
Press the button to display
.
* This operation is not
required when hold and
trigger conditions are not to
be set.
Press the button to set the
display to to set display of
the detail menu.
Other than
OFF
Arbitrary setting
Required setting
Set to the MENU mode
2
Response time setting
3
Sensor installation/wiring
1
Smart Tuning
4
8
Return to RUN mode
Setting completed
7
Threshold setting
5
Hold
6
Trigger conditions
Required
Required Select the desired mode to set
the measurement conditions in.
Hold down for
3seconds
Lit
Press to display.
Press to display.
Header
Indicates the measurement
contents.
Flow
Shows the flow of operation.
Operation procedure
Explains the operation
procedure.
Button Operation
Shows how to use the buttons.
Display
Shows what is displayed as a result of the operation.
Description of Operation
Explains how to perform the operation by using buttons.
Explanation of Selection Menu
Provides a supplemental explanation of the selection menu.
Index label
Shows the chapter and header titles with white characters.

15
ZX2 User’s Manual
INTRODUCTION
BASIC
SETUP
PREPARATION
FOR
MEASUREMENT
TROUBLE-
SHOOTING
INDEX
CONTENTS
SETTING
TRANSITION
CHARTS
FLOW OF
OPERATION
MAIN
APPLICATIONS
& SETTING
METHODS
DETAILED
SETTINGS
SPECIFI-
CATIONS
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
Meanings of Symbols
Symbol Meaning
Indicates points that are important to achieve the full product
performance, such as operational precautions and applica-
tion procedures.
(For details about xxx,
see page xx.) Indicates pages where related information can be found.
(white characters on a black
background)
Indicates a required setting in a setup procedure.
(black characters on a white
background)
Indicates an optional setting in a setup procedure.
Important
Required
Optional

16 ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
MEMO

1 PREPARATION FOR MEASUREMENT
PREPARATION FOR
MEASUREMENT
Part Names and Functions 18
Installation 23
Wiring Diagram 28

Part Names and Functions
18 ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
Part Names and Functions
Basic Configuration
The basic configuration of the ZX2 series Smart Sensors is shown below.
Amplifier Unit
Power supply
(sold separately)
Sensor Head
Calculating Unit
(used for connecting two or more Amplifier Units)
Extension cable
(used for extending cable length)*
* Only one extension cable can be used.
See p. 22.
See p. 19.
See p. 22.

Part Names and Functions 19
ZX2 User’s Manual
INTRODUCTION
BASIC
SETUP
PREPARATION
FOR
MEASUREMENT
TROUBLE-
SHOOTING
INDEX
CONTENTS
SETTING
TRANSITION
CHARTS
FLOW OF
OPERATION
MAIN
APPLICATIONS
& SETTING
METHODS
DETAILED
SETTINGS
SPECIFI-
CATIONS
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
Amplifier Unit
Sensor Head connector
This connector is for connecting
the Sensor Head.
Display section (*)
Operating Section (*)
(*) Operating and Display Sections
Connector (two connectors, one on each side)
This connector is for connecting Calculating Units.
Laser ON indicator (green)
This indicator lights while the Sensor Head
is emitting a laser beam.
Output Cable
This cable is for connecting the power supply
and sync sensors or external devices.
Zero reset indicator (green)
This indicator lights when the zero reset function is enabled.
ENABLE indicator (green)
HIGH indicator (orange)
PASS indicator (green)
LOW indicator (orange)
Main display (red)
Sub-display (orange)
Cursor buttons
MENU/SET button
Smart tuning button
MENU indicator (green)
LOW threshold indicator (orange)
HIGH threshold indicator (orange)
This indicator lights while the Sensor is ready for measurement. It goes out
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).
This indicator lights when the
judgement result is HIGH.
These buttons are used for
switching the display and setting
measurement conditions.
This is used for setting optimum sensing
conditions according to the operating conditions.
This button is used for switching
the mode and confirming settings.
This indicator lights when the HIGH threshold is displayed
on the sub-display.
This indicator lights when the LOW threshold is displayed
on the sub-display.
This indicator lights in the MENU mode.
It goes out in the RUN mode.
This indicator lights when the
judgement result is PASS.
This indicator lights when the
judgement result is LOW.
This display shows measured
values and function names.
This display shows additional
information and function
settings for measurements.

Part Names and Functions
20 ZX2 User’s Manual
INTRODUCTION
MAIN
APPLICATIONS
& SETTING
METHODS
SPECIFI-
CATIONS
INDEX
SETTING
TRANSITION
CHARTS
DETAILED
SETTINGS
FLOW OF
OPERATION
CONTENTS
PREPARATION
FOR
MEASUREMENT
BASIC
SETUP
TROUBLE-
SHOOTING
Height
Double
Sheet
Detection
Positioning
Eccentricity
and Surface
Deflection
Steps
and
Warpage
Thickness
Digital Displays
The information displayed on the main and sub-displays depends on the currently
selected mode. The default mode is the RUN mode.
When the power is turned ON, the type of Amplifier Unit (ZX2-LDA) will be displayed on
the main display. The software version and then the channel No. will be displayed on the
sub-display.
These details are displayed for approx. four seconds, and then data for the RUN mode
will be displayed.
(For details on setting transition charts, see page 130.)
Alphabet Display Format
The alphabet appears on the main and sub-displays as shown in the following table.
Mode Main display
(upper section, red)
Sub-display
(lower section, orange)
RUN The measured value (the value
after the measurement conditions
have been reflected) is displayed.
For example, when the hold
function is set, the held value will
be displayed.
Default measured values are as
follows:
By pressing the button, the HIGH
threshold, LOW threshold, analog output
value, resolution (max. value of measured
value during one second - min. value), current
value (value before execution of zero reset,
hold, scaling and 2-sensor operation), and
BANK are displayed in this order.
MENU The function names are
displayed in order by pressing
the buttons.
The setting for the function displayed on the
main display is displayed.
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
Measuring range
NEAR side FAR side
- indication
+ indication
0
Measuring center distance