Omron ZJ-SD Series User manual

Smart Electrostatic Sensor
ZJ-SD Series
User's Manual
Cat. No. Z237-E1-02
ZJ-SD Series Smart Electrostatic Sensor User's ManualCat. No. Z237-E1-02
©OMRON Corporation 2005 All Rights Reserved.
Note: Specifications subject to change without notice.
Printed in Japan.
1106-0.1M (1205) (M)
Authorized Distributor:
Cat. No. Z237-E1-02
OMRON Corporation
Industrial Automation Company
Sensing Devices Division H.Q.
Application Sensors Division
Shiokoji Horikawa, Shimogyo-ku,
Kyoto, 600-8530 Japan
Tel: [phone]/Fax: [phone]
Regional Headquarters
OMRON EUROPE B.V.
Sensor Business Unit,
Carl-Benz-Str. 4, D-71154 Nufringen,
Germany
Tel: [phone]/Fax: [phone]
OMRON ELECTRONICS LLC
1 East Commerce Drive, Schaumburg, IL 60173
U.S.A.
Tel: [phone]/Fax: [phone]
OMRON ASIA PACIFIC PTE. LTD.
83 Clemenceau Avenue,
#11-01, UE Square,
239920 Singapore
Tel: [phone]/Fax: [phone]
OMRON (CHINA) CO., LTD.
Room 2211, Bank of China Tower,
200 Yin Cheng Road (M),
Shanghai, 200120 China
Tel: [phone]/Fax: [phone]

Introduction
Thank you for purchasing the ZJ-SD.
This manual provides information regarding functions, performance and operating methods that
are required for using the ZJ-SD.
When using the ZJ-SD, be sure to observe the following:
• The ZJ-SD 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.

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
APPENDICES
User’s Manual
Smart Electrostatic Sensor
ZJ-SD Series
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Introduction
ZJ-SD
User’s Manual
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
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.
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iii
ZJ-SD
User’s Manual
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Introduction
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 your request. Please consult with your OMRON representative
at any time to confirm actual specifications of purchased products.
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iv
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ZJ-SD
User’s Manual
Introduction
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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ZJ-SD
User’s Manual
Introduction
Introduction
Precautions for Safe Use
The following points are important to ensure safety, so make sure that they are strictly observed.
■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.
•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 them in the same duct may cause induction, resulting in
malfunction or damage.
•Avoid connecting or disconnecting connectors while the product is powered ON.
Doing so may damage the product.
•Reverse connection of the power supply and output terminals is not allowed.
Connection to an AC power supply is also not allowed.
•Connect a supply voltage and current within the rated ranges to the output terminals.
■Others
•Do not disassemble, repair, or modify this product.
•This product is not compatible with the ZX series. Do not connect a ZJ-S___ in
combination with a ZX series Amplifier Unit.
•Supply power from a UL Class 2 DC power supply or a DC power supply unit that has
a countermeasure (safety ultra-low voltage circuit) built-in for preventing high voltages
from occurring.
•Be sure to insulate the sensor case as it is connected to the 0 V line of the internal
circuits.
•Always ground the 0 V terminal to prevent electrical shock and to enable performing
measurements correctly.
•Do not operate this product with wet hands. Doing so might cause a malfunction.
•Do not ground the 24 V terminal. Doing so may cause malfunctions.
•Do not drop this product or subject it to strong shock. Doing so might cause a
malfunction.
•Prevent static discharge from being applied to the Sensor Head even if it is operating
within the measurement voltage range. Doing so might cause a malfunction.
•Dispose of this product as industrial waste.
Precautions for Safe Use
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Introduction
ZJ-SD
User’s Manual
Introduction
Precautions for Correct Use
Observe the following precautions to prevent failure to operate, malfunctions, or undesirable effects on
product performance.
■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 rating
•Presence of corrosive or flammable gases
•Presence of dust, salt, or iron particles
•Direct vibration or shock
•Direct sunlight
•Water, oil, or chemical fumes or spray
•Strong magnetic or electric field
Component Installation and Handling
■Power Supply and Wiring
•The cables must be 10 m or shorter in total length, for both the sensor and Amplifier
Unit. To extend the cable from the Sensor Head, an optional double-ended connector
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 a commercially available switching regulator, make sure that the FG
(Frame Ground) terminal is grounded.
•If surge currents are present in the power lines, connect surge absorbers that suit the
operating environment.
•When two or more Amplifier Units are connected by a Calculating unit (ZX-CAL2) for
use, connect the linear GND of all Amplifier Units.
■Warming Up
After turning ON the power supply, allow the product to stand for at least 30 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.
•Do not allow dust to enter the measurement section.
Precautions for Correct Use
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vii
ZJ-SD
User’s Manual
Introduction
Introduction
Editor's Note
Editor's Note
Page Format
53
53
ZJ-SD
ZJ-SD
User's Manual
Use r's Manua l
Section 5
Section 5
DETAILED SETTINGS
DETAILED SETTINGS
Section 5
Section 5
Using the Hold Functions
Using the Hold Functions
Using the Hold Functions
Using the Hold Functions
• Flow of Operation
Selecting the Hold Condition for Measured Values
Selecting the Hold Condition for Measured Values
After sampling is started, the CLAMP value is output until the first sampling period ends.
What is the "CLAMP value?" p.73
Moving to the FUN mode and HOLD
1.
1.
2.
2.
Selecting the hold condition
3.
3.
Press the UP or DOWN key.
The sub-display flashes.
4.
4.
5.
5.
Press the ENT key to confirm the setting.
This registers the setting.
3
2
1(if required) 4(if required)
The "hold functions" hold data for specific points during the measurement period, such as the
minimum and maximum values, and output those values after measurement ends.
Selecting the Hold
Condition for
Measured Values
The time period from the start to the end of hold measurements is called the "sampling
period."
The value to be held during that sampling period is selected here.
Setting the Trigger
for Measurement in
the Hold Mode
Set the Trigger
Direction and
Self-trigger Level
Setting the Delay
Time
Set the mode switch to FUN.
Use the LEFT and RIGHT keys to display
[HOLD] on the main display.
Use the UP and DOWN keys to select the
desired hold condition.
●Title of each section
●Header
●Overview
●Index label
●Overview and points of
the function described
●Purpose of operation
●Display
●Keys or switches to be used
●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.
●Cross-header
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viii
Introduction
ZJ-SD
User’s Manual
Introduction
Editor's Note
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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ix
ZJ-SD
User’s Manual
Introduction
CONTENTS
Introduction
CONTENTS
CONTENTS
Precautions for Safe Use v
Precautions for Correct Use vi
Editor's Note vii
CONTENTS ix
Section 1 FEATURES 1
ZJ-SD Features 2
Section 2 PREPARATION FOR MEASUREMENT 5
Basic Configuration 6
Part Names and Functions 9
Installing the Amplifier Unit 13
Installing Sensor Heads 15
Mounting on the Mounting Bracket 17
Connections 19
Wiring Input/Output Cables 23
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x
Introduction
CONTENTS
ZJ-SD
User’s Manual
Introduction
CONTENTS
Section 3 BASIC OPERATION 25
Flow of Operation 26
Basic Knowledge for Operation 28
Function Transition Charts 33
Correcting the Measurement Reference Voltage 36
Selecting the Measurement Mode 40
Setting the Installation Distance 41
Section 4 MAIN APPLICATIONS AND SETTING METHODS 45
Measuring Sheet Workpieces 46
Section 5 DETAILED SETTINGS 51
Setting the Number of Samples to Average 52
Using the Hold Functions 53
Entering Threshold Values 64
Linear Output 70
Setting Judgment Output Timing (Timer) 79
Setting the Warning Level (Output type) 82
Using the Area Correction Function 85
Selecting Banks 88
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xi
ZJ-SD
User’s Manual
Introduction
CONTENTS
Introduction
CONTENTS
Section 6 AUXILIARY FUNCTIONS 91
Changing the Number of Display Digits 92
Reversing the Display 93
Adjusting Display Brightness (ECO Display) 95
Key Lock Function 96
Initializing Setting Data 97
Changing Display Scales 99
Comparing Measured Values (Differentiation Function) 105
Section 7 APPENDICES 109
Troubleshooting 110
Error Messages and Countermeasures 111
Q&A 113
Glossary 114
Specifications and Dimensions 115
Communicating with the Static Electricity Smart Monitor via the Interface Unit 124
Characteristic Data 126
Quick Reference for Displays 127
INDEX 131
Revision History 136
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xii
Introduction
CONTENTS
ZJ-SD
User’s Manual
Introduction
CONTENTS
MEMO
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Section 1 FEATURES
1
ZJ-SD
User’s Manual
Section 1
FEATURES
ZJ-SD Features 2
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2
Section 1 FEATURES
ZJ-SD
User’s Manual
Section 1
ZJ-SD Features
ZJ-SD Features
The ZJ-SD is a series of static electricity sensors. The purpose of these sensors is to measure
the electric potential of the surface of a workpiece charged with static electricity.
Example: Measurement of the potential of a PCB
■High-precision Detection by Distance Correction
The sensor that measures the charged amount of the workpiece is greatly dependent
on the distance up to the workpiece.
The ZJ-SD series can be connected to a ZX displacement sensor so that distance
correction can be performed on the charged amount using that measurement data and
non-uniform workpieces can be measured to high precision.
Also, if the installation distance up to the workpiece is fixed beforehand, distance
correction can be performed and highly accurate measurement ensured by directly
inputting the distance to the ZJ-SD.
Measured value outputs
Judgment outputs
Calculating Unit
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3
ZJ-SD
User’s Manual
Section 1 FEATURES
Section 1
ZJ-SD Features
Extendable Sensor Head Cables
Special extension cables are provided to extend the Sensor Heads.
p.6
Monitoring Measurement Status
■Confirm Measurement Status on a Personal Computer
Use an Interface Unit and Static Electricity 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.12, p.124
Special extension cable
Static Electricity
Smart Monitor
Amplifier Unit
Interface
Unit
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4
Section 1 FEATURES
ZJ-SD
User’s Manual
Section 1
ZJ-SD Features
MEMO
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Section 2 PREPARATION FOR MEASUREMENT
5
ZJ-SD
User’s Manual
Section 2
PREPARATION FOR MEASUREMENT
Basic Configuration 6
Part Names and Functions 9
Installing the Amplifier Unit 13
Installing Sensor Heads 15
Mounting on the Mounting Bracket 17
Connections 19
Wiring Input/Output Cables 23
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6
Section 2 PREPARATION FOR MEASUREMENT
ZJ-SD
User’s Manual
Section 2
Basic Configuration
Basic Configuration
The basic configuration of the ZJ-SD series of static electricity sensors is shown below.
Use the Sensor Unit and Amplifier Unit in the pre-determined combinations. ZJ-SD Sensor Units and
Amplifier Units cannot be used in combination with ZX series Sensor Units and Amplifier Units.
Interface Unit
ZJ-SDA
Smart Static Electricity
Monitoring
Personal Computer
Connecting cable
Sensor Head
Extension Cable
Calculating Unit
Amplifier Unit
Power Supply
p.22
p.13
p.15
p.20
Enables operation
of Amplifier Units
from the personal
computer and
monitoring
measured values.
Used to connect to
a personal computer
or programmable
controller.
ZJ-SD100
Detects static
electricity.
Basic Configuration
ZJ-SDA11
Performs measurements
and outputs measurement
results.
DC24V (±10%)
ZX-XC1A (1 m)
ZX-XC4A (4 m)
ZX-XC8A (8 m)
To be used between
a Sensor Unit and
Amplifier Unit.
Only one extension
cable can be used.
ZX-CAL2
Used to connect two or
more Amplifier Units.
•Calculating
p.122
Commercially
available cross cable
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