OMRON ZJ-SD User Guide

Download

Smart Electrostatic Sensor

ZJ-SD Series

User's Manual

Cat. No. Z237-E1-02

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

APPLICATION CONSIDERATIONS (Please Read)

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

FEATURES

PREPARATION FOR MEASUREMENT

BASIC OPERATION

MAIN APPLICATIONS AND SETTING METHODS

DETAILED SETTINGS

Section 6

Section 7

AUXILIARY FUNCTIONS

APPENDICES

User’s Manual

Smart Electrostatic Sensor

ZJ-SD Series

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.

ZJ-SD

User’s Manual

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.

Introduction

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.

ZJ-SD

User’s Manual

iii

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.

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.

ZJ-SD

User’s Manual

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.

Introduction

■ 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.

ZJ-SD

User’s Manual

Introduction

Introduction Precautions for Correct Use

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.

ZJ-SD

User’s Manual

Editor's Note

ZJ-SD

User's Manual

Section 5

DETAILED SETTINGS

Section 5

Usi ng th e Ho ld Fu nctio ns

Us in g the Hold F uncti on s

Selecting the Hold Condition for Measured Values

Page Format

Using the Hold Functions

Section 5

Introduction

Editor's Note

Introduction

●Title of each section

●Header

Indicates the contents of the page.

Using the Hold Functions

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.

• Flow of Operation

Selecting the Hold

Condition for

Measured Values

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

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

Set the mode switch to FUN.

Use the LEFT and RIGHT keys to display [HOLD] on the main display.

Selecting the hold condition

Press the UP or DOWN key.

The sub-display flashes.

Use the UP and DOWN keys to select the desired hold condition.

Press the ENT key to confirm the setting.

This registers the setting.

●Operation procedure and supplementary explanation

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.

(if required)

Set the Trigger

Direction and

Self-trigger Level

●Overview

Describes the overview and operation flow of the section.

(if required)

Setting the Delay

Time

●Cross-header

●Overview and points of

the function described

Section 5

DETAILED SETTINGS

●Index label

Shows the chapter number and contents.

●Purpose of operation

Shows the contents of the operation to be performed.

ZJ-SD

User's Manual

●Display

Shows the display status resulting from the operation.

●Keys or switches to be used

Illustrates the keys and switches to be used.

* This page does not exist.

User’s Manual

ZJ-SD

vii

Introduction

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.

viii

ZJ-SD

User’s Manual

Introduction

CONTENTS

Introduction

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

CONTENTS

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

ZJ-SD

User’s Manual

Introduction

Introduction CONTENTS

Section 3 BASIC OPERATION 25

Flow of Operation 26

CONTENTS

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

ZJ-SD

User’s Manual

Introduction

CONTENTS

Section 6 AUXILIARY FUNCTIONS 91

Changing the Number of Display Digits 92

Introduction

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

CONTENTS

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

ZJ-SD

User’s Manual

Introduction

CONTENTS

Introduction CONTENTS

MEMO

xii

ZJ-SD

User’s Manual

Section 1 FEATURES

ZJ-SD Features 2

Section 1 FEATURES

ZJ-SD

User’s Manual

Section 1 ZJ-SD Features

ZJ-SD Features

Section 1 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

Measured value outputs

Judgment outputs

■ 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.

Calculating Unit

ZJ-SD

User’s Manual

Extendable Sensor Head Cables

Section 1

ZJ-SD Features

Special extension cables are provided to extend the Sensor Heads.

p.6

Special extension cable

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

Section 1 FEATURES

Static Electricity

Smart Monitor

Interface Unit

Amplifier Unit

ZJ-SD

User’s Manual

Section 1 FEATURES

Section 1 ZJ-SD Features

MEMO

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

Section 2 PREPARATION FOR MEASUREMENT

ZJ-SD

User’s Manual

Section 2 PREPARATION FOR MEASUREMENT

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.

Smart Static Electricity Monitoring

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

Personal Computer

Basic Configuration

Sensor Head

ZJ-SD100

Detects static electricity.

Connecting cable

Commercially available cross cable

p.122

Interface Unit

Used to connect to a personal computer or programmable controller.

p.22

ZJ-SDA

p.15

Amplifier Unit

ZJ-SDA11

Performs measurements and outputs measurement results.

p.13

Extension Cable

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.

Calculating Unit

ZX-CAL2

Used to connect two or more Amplifier Units.

• Calculating

p.20

Power Supply

DC24V (±10%)

ZJ-SD

User’s Manual

Section 2

Basic Configuration

When used in combination with a displacement sensor

The following shows an example of correcting distance using an ultrasonic type

displacement sensor.

■ When a personal computer (and Amplifier Unit) are not included in the basic configuration

Example 1)

1ch: ultrasonic sensor

The static electricity sensor on 2ch can perform correction using the data of the ultrasonic sensor on 1ch.

2ch: static electricity sensor

Example 2)

1ch: ultrasonic sensor

2ch: static electricity sensor

The static electricity sensor on

3ch: static electricity sensor

2ch to 5ch can perform correction using the data of the ultrasonic sensor on 1ch.

Section 2 PREPARATION FOR MEASUREMENT

4ch: static electricity sensor

5ch: static electricity sensor

ZJ-SD

User’s Manual

Section 2 PREPARATION FOR MEASUREMENT

Section 2 Basic Configuration

■ When a personal computer (and Amplifier Unit) are included in the basic configuration

The [Reference destination setting] can be set in the Static Electricity Smart Monitor.

Example 1)

1ch: ultrasonic sensor

2ch: static electricity sensor

(When [Reference destination

3ch: static electricity sensor

4ch: static electricity sensor

setting] is set to [CH1]), the static electricity sensor on 2ch to 4ch can perform correction using the data of the ultrasonic sensor on 1ch.

Example 2)

0ch: Interface Unit

1ch: ultrasonic sensor

2ch: static electricity sensor

3ch: ultrasonic sensor

4ch: static electricity sensor

0ch: Interface Unit

*(When [Reference destination setting] is set to [Next CH]), the static electricity sensor on 2ch and 4ch can perform correction using the data of the ultrasonic sensors on 1ch and 3ch, respectively.

*4ch cannot reference 1ch and 2ch cannot reference 3ch.

ZJ-SD

User’s Manual

Part Names and Functions

Amplifier Unit

Section 2

Part Names and Functions

Display

Section (*)

(1) Input Cable

(*) Operating and Display Sections

(8) OPE1 indicator

(9) OPE2 indicator

(10) OPE3 indicator

Operating Section (*)

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

(11) Main Display

(12) Sub-display

(4) Output Cable

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

(5) Power supply indicator

(6) Zero Reset indicator

(7)ENABLE indicator

POWER

(13) Threshold switch

(14) Mode switch

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

Current/voltage switch

Voltage output

Section 2 PREPARATION FOR MEASUREMENT

(15) Control Keys

Current output

Monitor focus must also be set when switching the output.

p.70

(3) The connectors connect the Calculating 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 power indicator lights when the Sensor is powered ON. (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 measuring range is exceeded, or

when the Sensor Head is not connected when the power is turned ON). (8) The OPE1 indicator lights according to the judgment result or warning state.

(9) The OPE2 indicator lights according to the judgment result or warning state.

(10)The OPE3 indicator lights according to the judgment result or warning state.

p.10

(11)The main display shows measured values and function names. (12)The sub-display shows additional information and function setting values for

measurements.

Reading Displays p.29

(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.28 (15)The Control Keys set measurement conditions and make other settings. Key

Operations

p.30

ZJ-SD

User’s Manual

Section 2 PREPARATION FOR MEASUREMENT

Section 2 Part Names and Functions

Judgment results/warning states and indicators

Hold Output type OPE1 OPE2 OPE3

Other than peak and bottom hold

Peak and bottom hold Warning/

Standard HIGH PASS LOW

Warn ing WARN OK NG

standard

WARN Peak-OK Bottm-OK

OK: ON when PASS

NG: ON whether other than PASS (HIGH or LOW)

WARN: ON in warning state

Peak-OK: ON when the peak hold result is OK (PASS)

Bottm-OK: ON when the bottom hold result is OK (PASS)

The warning state continues until one of "Reset input ON", "Switch to FUN mode" and "Power OFF"

is executed.

ZJ-SD

User’s Manual

Sensor Head

■ Sensor Head

Section 2

Part Names and Functions

Sensing section

Preamplifier

Connector

Connect to the Amplifier Unit.

Calculating Unit

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

Connect to the Amplifier Unit.

Section 2 PREPARATION FOR MEASUREMENT

* Display

Connection indicator

Lit when the Amplifier Unit is connected.

User’s Manual

ZJ-SD

Section 2 PREPARATION FOR MEASUREMENT

Section 2 Part Names and Functions

Interface Unit

Display (*)

(2) Amplifier Unit connector

(1) Connector

* Display

(3) Power supply indicator

(4) Sensor communication indicator (BUSY/ERR)

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

(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.

ZJ-SD

User’s Manual

Installing the Amplifier Unit

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

DIN Track (Option)

PFP-100N (1 m)

PFP-50N (0.5 m)

PFP-100N2 (1 m)

End Plate (option)

PFP-M

Section 2

Section 2 PREPARATION FOR MEASUREMENT

■ 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.

Hook on the connector end

Always hook the connector end of the Amplifier Unit on the DIN Track first. The mounting strength

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

ZJ-SD

User’s Manual

Section 2 PREPARATION FOR MEASUREMENT

Section 2 Installing the Amplifier Unit

■ Removal Method

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

■ Using the Product in Conformance with CE

To use this product in conformance with CE, install the enclosed ferrite core as shown

below.

10 mm max.

Ferrite core

ZJ-SD

User’s Manual

Installing Sensor Heads

This section describes how to install Sensor Heads.

Sensor Head

■ Installation

1. Fix the Sensor Head using screws.

The screws must be tightened with a torque of 0.5 Nm or less.

Sensor Head

Section 2

Installing Sensor Heads

Section 2 PREPARATION FOR MEASUREMENT

Preamplifier

Connector

• Mount the Sensor Head in a stable location with little vibration.

• When this sensor is used and installed in combination with a distance sensor, we recommend

using the exclusive mounting bracket (ZJ-XBU1).

• Do not allow anything to touch the metal case of the Sensor Head. Failure to do so might prevent

accurate measurement by the sensor.

Setting the Installation Distance p.41, Scaling p.99

2. Adjust the angle of the Sensor Head.

Loosen the two screws on the sides of the holder, and adjust the angle of the Sensor Head so that it faces

the object to be measured.

Do not remove the screws.

3. Tighten the screws on the sides of the holder to set the angle.

Firmly tighten both screws to a maximum torque of 0.5 N·m.

ZJ-SD

User’s Manual

Section 2 PREPARATION FOR MEASUREMENT

Fit the other end

into the bracket.

[

]

Section 2 Installing Sensor Heads

Preamplifier

■ Installation

1. Use M3 screws to fix the enclosed Preamplifier

mounting bracket.

Use the ZX-XBT2 Preamplifier DIN Track Mounting Bracket

(order separately) when mounting the Preamplifier onto a

DIN Track.

2. Fit one end of the Preamplifier into the bracket.

3. Fit the other end of the Preamplifier into the

bracket.

To remove the Preamplifier from the mounting

bracket, lift upwards while holding the center of the

Preamplifier.

Fit one end into the bracket

Removal

Lift while holding the center

■ Using the Product in Conformance with CE

To use this product in conformance with CE, loop the cable twice around the enclosed

ferrite core as shown below.

ZJ-SD

User’s Manual

Sensor

Ferrite core

Two loops

10 mm max.

Amplifier

Section 2

Mounting on the Mounting Bracket

The following describes how to mount the laser type Smart Sensor (ZX-LD) and static

electricity sensor (ZJ-S), or ultrasonic type Smart Sensor (ZX-UD) and static electricity sensor

(ZJ-S) onto the exclusive mounting bracket (ZJ-XBU1).

Setting the Installation Distance p.41

■ Installation

■ Example of mounting the ZX-LD___

1. Fix the ZX-LD___ onto the mounting bracket (ZJ-XBU1) using M3 screws.

Section 2 PREPARATION FOR MEASUREMENT

Emitting/receiving section

The screws must be tightened with a torque of 0.3 Nm or less.

Take care not to touch the emitting/receiving section of the Sensor Head. Adhesion of finger marks may

prevent correct measurements. If you have touched them, wipe them with a clean, soft cloth.

2. Fix the ZJ-S___ using the screws.

Sensing section

Do not allow anything to touch the metal case of the Sensor Head. Failure to do so might prevent accurate

measurement by the sensor.

ZJ-SD

User’s Manual

Section 2 PREPARATION FOR MEASUREMENT

Section 2 Mounting on the Mounting Bracket

■ Example of mounting the ZX-UD__

1. Fix the ZX-UD__ onto the mounting bracket (ZJ-XBU1) using the M18 tightening nut.

18.5 mm dia. (+0.5/0)

Wave emitting/receiving section

Tighten by holding the M18 tightening nut (supplied) between your fingers to secure.

The nut must be tightened with a torque of 45 Nm or less.

2. Fix the ZJ-S___ using the screws.

Sensing section

Do not allow anything to touch the metal case of the Sensor Head. Failure to do so might prevent accurate

measurement by the sensor.

ZJ-SD

User’s Manual

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 Sensor Head

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

Section 2

Connections

Section 2 PREPARATION FOR MEASUREMENT

■ Disconnecting the Sensor Head

To disconnect the Sensor Head, hold the Sensor Head's connector ring and the

Amplifier Unit connector, and then pull them straight out.

• Be 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

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

User’s Manual

ZJ-SD

Section 2 PREPARATION FOR MEASUREMENT

Section 2 Connections

Calculating Unit

Use a Calculating Unit to connect Amplifier Units when performing communications

with two or more Amplifier Units.

Up to five Amplifier Units can be connected.

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 onto 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 Calculating Unit, perform the above operations in reverse order.

ZJ-SD

User’s Manual

Section 2

Connections

■ Channel Numbers of Amplifier Units

The following diagram shows the channel numbers when two or more Amplifier Units

are connected.

CH1CH2CH3CH4CH5

Section 2 PREPARATION FOR MEASUREMENT

ZJ-SD

User’s Manual

Section 2 PREPARATION FOR MEASUREMENT

Section 2 Connections

Interface Unit

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

■ Connection Method

ZJ-SDA

1. Open the connector cover on the Amplifier Unit.

Open the connector cover by lifting and sliding it open.

2. Mount the Interface Unit onto 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 two or more Amplifier Units are used, connect the Interface Unit to the Amplifier Unit with

the highest channel number.

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

p.124

ZJ-SD

User’s Manual

Wiring Input/Output Cables

The input/output cable has the following wires.

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

Section 2

Wiring Input/Output Cables

Brown

White

Green

Gray

Black

Shield

Orange

Purple

Blue

Pink

Red

(1) 24 VDC power

(2) GND

(3)

OPE1 judgment output

(4)

OPE2 judgment output

(5)

OPE3 judgment output

(6) Linear output (7) Linear GND

(8) Bank shift input

(9) Zero reset input

(10) Timing input (11) Reset input

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

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

Unit, when high resolution is required.

(2) The GND terminal is the 0 V power supply terminal. This terminal becomes the

common terminal for inputs/outputs other than linear output.

The 0 V terminal must be grounded in order for measurements to be performed correctly.

(3) The OPE1 indicator lights according to the judgment result or warning state.

(4) The OPE2 indicator lights according to the judgment result or warning state.

(5) The OPE3 indicator lights according to the judgment result or warning state.

p.10

(6) The linear output outputs a current or voltage in accordance with the measurement

result.

(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.

• When using Calculating Units, make sure that the linear GND lines of the Amplifier Units are connected to each other.

(8) When this input is ON: The bank is switched using (9), (10), and (11). p.88

Section 2 PREPARATION FOR MEASUREMENT

(9) (8)=ON: Bank switching is executed. p.88

(8)=OFF: The zero reset input is used to execute and clear zero reset. p.37

(10)The timing input is for signal input from external devices.

(8)=ON: The bank is specified.

p.88

(8)=OFF: Use it for hold function timing. The sub-display indicates [TIMNG] while

the hold function timing is input.

p.56

(11)(8)=ON: The bank is specified. p.88

(8)=OFF: The reset input resets all measurement processing and outputs. The subdisplay indicates [RESET] while the hold function reset is input. The linear and judgment output signals are output according to the non-measurement settings. If this reset input switches ON while the hold function is used, the state that was

active before the hold function was set is restored.

p.77

User’s Manual

ZJ-SD

Section 2 Wiring Input/Output Cables

I/O Circuit Diagrams

Section 2 PREPARATION FOR MEASUREMENT

Internal circuit

Current/voltage

output Switch

Current output

4 to 20 mA

100 Ω

Voltage

output

± 4V

Brown

White

Green

Gray

Blue

Pink

Purple

Orange

Red

Black

Shield

24 VDC

Load

OPE1 judgment output

OPE2 judgment output

OPE3 judgment output

GND (0V)

Bank shift input

Timing input

Zero reset input

Reset input

Linear output

Load

Linear GND

Load

24 VDC

Current output: 300 Ω or lower

Voltage output: 10 kΩ or higher

ZJ-SD

User’s Manual

Section 3 BASIC OPERATION

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 3 BASIC OPERATION

ZJ-SD

User’s Manual

Section 3 BASIC OPERATION

Section 3 Flow of Operation

Flow of Operation

Installation and Connection Preparation for Measurement

Turn ON the power.

Correcting the Measurement Reference Voltage

p.5

p.36

Preparation for MeasurementSetting to Execution of Measurement Conditions

Select the measurement mode (standard/high-precision).

Selecting the Measurement Mode

Making Settings According

to Your Application

Measuring Sheet

Workpieces

p.40

p.46

Setting/Changing Measurement Contents

Setting Number of Samples to Average

Setting the Distance Measurement Mode

Setting Area Correction

Using Hold Functions

Comparing Measured Values (Differentiation Function)

Changing Display Scales

Setting Judgment Conditions

p.52

p.41

p.85

p.53

p.105

p.99

ZJ-SD

User’s Manual

Entering Threshold Values

Setting Output Contents

Linear Output

Setting Judgment Output Timing

p.64

p.70

p.79

When a Problem Occurs....

Section 3

Flow of Operation

The Smart Sensor Does Not Operate Correctly

Troubleshooting

Want to Know Meanings of Terms

Glossary

Saving the Zero Reset Level for the Reference Voltage in Zero Reset Memory

p.114

p.110

p.38

Changing the Number of

Display Digits

p.92

An Error Message Has Appeared

Error Messages and Countermeasures

Want to Find Contents from

Digital Displays

Quick Reference for Displays

Using the Power-Saving

Mode

p.95

Reversing the Display

during a Zero Reset

p.93

Additional Functions

Key Lock Function

p.111

Section 3 BASIC OPERATION

p.127

p.96

Applied Use of Functions

Setting the Warning Level

p.82

Initializing Setting Data

Switching Banks

p.97

p.88

Changing/Deleting Settings

ZJ-SD

User’s Manual

Section 3 BASIC OPERATION

Section 3 Basic Knowledge for Operation

Basic Knowledge for Operation

Switching Modes

The ZJ-SDA has three modes. Use the Mode Switch on the Amplifier Unit to switch

between modes.

Switch to the desired mode before starting operation.

POWER

Mode Description

RUN Normal operation mode

T Mode for setting the threshold values

FUN Mode for setting measurement conditions

Function Transition Charts p.33

ZJ-SD

User’s Manual

Section 3

Basic Knowledge for Operation

Reading Displays

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

mode. The sensor is already set to the RUN mode before it was shipped from the

factory.

When the power is turned ON, the model of the Amplifier Unit is displayed on the main

display followed by the number of channels.

The software version is on the sub-display.

This information is displayed for approx. three seconds, followed by the data for each

mode.

Main Display

Section 3 BASIC OPERATION

POWER

Sub-display

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 is displayed.

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 is displayed.

Displays the threshold value, voltage, current, resolution, distance 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.

Displays the threshold value for the threshold that is 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.

Function Transition Charts p.33

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

ZJ-SD

User’s Manual

Section 3 BASIC OPERATION

Section 3 Basic Knowledge for Operation

■ Alphabet Display Format

Alphabet characters appear on the main and sub-displays as shown in the following

table.

ABCDEFGHI JKLM

NOPQRSTUVWXYZ

Key Operations

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

POWER

Control Keys

The currently selected mode determines the key functions.

Switching Modes p.28

Key

LEFT Key

RIGHT Key

Cursor Keys

UP Key Performs timing input. Used when changing

DOWN Key

ENT Key When held down for one

RUN mode T mode FUN mode

Changes the sub-display content.

Resets input.

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

Used when selecting the numeric value digit

numeric values

The function changes depending on the operation:

Function

• Confirms the threshold value.

• Executes teaching.

The function changes depending on the setting:

• Switches the function display.

• Selects the numeric value digit.

• Stops setting.

The function changes depending on the setting:

• Switches between selections.

• Changes numeric values.

Confirms the set condition or numeric value.

ZJ-SD

User’s Manual

Section 3

Basic Knowledge for Operation

Condition Settings

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

the sub-display to set measurement conditions.

This section describes how to set measurement conditions, using an example of

setting a peak hold as the hold condition.

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 flashes.

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

Section 3 BASIC OPERATION

Press either the LEFT or RIGHT key to cancel the

selected option.

The display returns to the current setting ([OFF] in this

example).

5. Press the ENT key to confirm the settings.

This registers the setting.

ZJ-SD

User’s Manual

Section 3 Basic Knowledge for Operation

Inputting Numeric Values

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

section describes how to input directly, using an example of inputting the low threshold.

Changing the low threshold from "40.000" to "39.000"

Moving to the T mode

Section 3 BASIC OPERATION

1. Set the mode switch to T.

Setting threshold values

2. Set the switch to L.

The measured value is displayed on the main display.

The current setting value is displayed on the sub-display.

3. Press any cursor key.

The first digit on the sub-display flashes to indicate that

direct input is 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 settings.

The display stops flashing and stays lit, and the setting is

registered.

ZJ-SD

User’s Manual

Function Transition Charts

Reading Transition Charts

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

Main Display

Sub-display

RUN Mode

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

Section 3

Section 3 BASIC OPERATION

Threshold*1 Linear output voltage value

Resolution Distance value Present value

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

Linear output current value

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

be different.

What is the "present value"? p.114

T Mode

There is no function transition in the T mode.

Measured value

Threshold

p.64

The setting shown in the above diagram is only an example. The actual display may be

different.

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

threshold is displayed.

Threshold switch

HIGH LOW

ZJ-SD

User’s Manual

Section 3 Function Transition Charts

FUN Mode

Section 3 BASIC OPERATION

Measurement mode*1

Number of samples to average

Hysteresis width

p.40 p.52 p.69 p.41

When the mode is

switched to FUN, the

measurement mode

is displayed first.

Bank switching

Distance measurement mode

Trigger

Sensor distance

value

p.43

p.56

Trigger direction

Self-trigger level-High

Self-trigger level-Low

Self-trigger hysteresis width

p.88

ZJ-SD

User’s Manual

Special functions

Differentiation

function

Differentiation cycle

p.106

p.107

*2 Displayed if the hold function

is not set to OFF

Warning level

p.82

Output type

p.82

All the special functions are displayed if is selected.

Linear output

correction

p.74

Display digit limit

p.92

Zero reset memory settings

p.38

Monitor focus

ECO Mode

p.95

Non-measurement settings

Clamp value setting

Scaling function

p.99p.70

Display reverse

p.93

p.77

Area measurement

Section 3

Function Transition Charts

Area correction

Delay hold

p.85

p.62

p.86

Delay time

Special

p.63

Hold

p.53

Sampling period

p.63

Initialization

Timer

p.79

Timer time

Section 3 BASIC OPERATION

p.81

p.97

This symbol requests you to move to another

menu using the LEFT or RIGHT key after

pressing the ENT key to confirm the selections.

User’s Manual

ZJ-SD

Section 3 BASIC OPERATION

Section 3 Correcting the Measurement Reference Voltage

Correcting the Measurement Reference Voltage

More accurate measurement results can be obtained by correcting the potential used as a

reference in taking measurements (i.e., resetting zero).

As shown below, zero is reset by using a recommended reference detection object that is

grounded.

Conditions for Recommended Reference Detection Object

• Accurate measurements may not be possible if the object being used as the reference detection

body carries a static charge because there is a charged object nearby or because the plate is not

grounded properly.

• The same measurement results can be obtained with a jig or other object as long as the

conditions given for the reference detection object are met.

Reference detection object

Material: Conductive metal plate

Dimension A ≥ 5L

Dimension B ≥ 5L1

Thickness (t) ≥ 1 mm

A and B must be at least 5 times the installation distance L

■ Linearity (Reference Values)

The linearity shown in the following graph can be obtained by resetting zero as

described above.

[%FS]

5.0

4.0

3.0

2.0

1.0

0.0

−1.0

−2.0

−3.0

−4.0

−5.0

−6 kV −4 kV −2 kV 0 kV 2 kV 4 kV 6 kV

Linearity

Set voltage [kV]

Note: The graph shows measurement data with n = 8.

ZJ-SD

User’s Manual

Section 3

Correcting the Measurement Reference Voltage

Resetting Zero

The measurement value is used as a reference value to reset zero when a key

operation is performed or an external signal is input.

If the reference voltage was previously corrected, the previous correction will be

overwritten. With the default setting, the correction value will be saved in memory even

when the power supply is turned OFF. The setting can be changed so that the

correction value is not saved.

Saving the Zero Reset Level for the Reference Voltage in Zero Reset Memory p.38

1. Place the reference sensing object in position.

2. Set the mode switch to RUN.

3. Press the ENT key at least one second or

input the zero reset signal from an external

device (for 800 ms max.).

This registers the reference value, and the zero reset indicator lights. The tolerance for the registered reference value is displayed on the main display.

Clearing the Reference Voltage Correction Value

1. Set the mode switch to RUN.

2. Hold the ENT and RIGHT keys down together

for at least three seconds.

To cancel zero reset from an external device,

input the zero reset signal for at least one

second.

Section 3 BASIC OPERATION

Zero reset is canceled and the zero reset indicator turns OFF.

ZJ-SD

User’s Manual

Section 3 BASIC OPERATION

Section 3 Correcting the Measurement Reference Voltage

Saving the Zero Reset Level for the Reference Voltage in Zero Reset Memory

A setting can be changed to specify whether the zero reset level is saved or cleared

when the power supply is turned OFF.

Setting Description

ON (default) The zero reset level is saved when the power supply is turned OFF.

OFF The zero reset level is cleared when the power supply is turned OFF.

• Turn ON the zero reset memory to save the zero reset level and use it again when power is

turned back ON.

If zero reset memory is turned ON, the zero reset level will be written to EEPROM in the Amplifier

Unit every time zero is reset. The write life of the EEPROM is 100,000 writes. If the zero reset

level is written every time measurements are taken, malfunction may occur. Manage the write life

when turning ON zero reset memory during operation.

• Even if the zero reset memory is turned OFF, the zero reset level will be saved whenever

threshold values or other function settings are changed. In this case, the zero reset level will not

be cleared the next time the power supply is turned ON.

ZJ-SD

User’s Manual

Correcting the Measurement Reference Voltage

Moving to the 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.

Section 3

Moving to ZRMEM

3. Press the UP or DOWN key.

The sub-display flashes.

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

[ZRMEM] on the main display.

Selecting whether or not to enable zero reset memory

Section 3 BASIC OPERATION

7. Press the UP or DOWN key.

The sub-display flashes.

8. Select either [ON] or [OFF].

ON: Zero reset memory enabled

OFF: Zero reset memory disabled (default)

9. Press the ENT key to confirm the setting.

This registers the setting.

ZJ-SD

User’s Manual

Section 3 Selecting the Measurement Mode

Selecting the Measurement Mode

The ZJ-SD has two measurement modes, the standard mode and the high-precision mode.

Section 3 BASIC OPERATION

Mode Selection

Standard mode STAND

High-precision mode HI-AC ±5 kV 1 V

Select the measurement mode before implementing the distance correction function.

Distance correction function p.41

Moving to the FUN mode

Measurement

distance range

5 to 100 mm

Maximum

measurement voltage

±50 kV 10 V

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT keys to display

[MEAS] on the main display.

Display

resolution

Setting the measurement mode

3. Press the UP or DOWN key.

The sub-display flashes.

4. Select [STAND] or [HI-AC].

STAND: Standard mode

HI-AC: High-precision mode

5. Press the ENT key to confirm the settings.

This sets the selected mode.

ZJ-SD

User’s Manual

Section 3

Setting the Installation Distance

Set the distance between the static electricity sensor and the workpiece.

The electric potential value can be corrected according to the change in the distance between the

workpiece and the Sensor Head by performing measurement in combination with a displacement

sensor. The mode to be selected changes according to conditions, such as changes in the

distance between the workpiece and the Sensor Head, or use of the exclusive mounting bracket.

Mode Display Description

USER mode USER When measurement is performed with the distance between the

workpiece and the Sensor Head fixed (used on static electricity sensor)

AUTO mode AUTO When the exclusive jig is not used when the distance between the

workpiece and the Sensor Head changes (when the static electricity sensor and distance sensor are fixed by the user's own jig)

FIX mode FIX When the exclusive mounting bracket (ZJ-XBU1) is used to install a laser

type Smart Sensor (ZX-LD) or ultrasonic type Smart Sensor (ZX-UD) when the distance between the workpiece and the Sensor Head changes

Section 3 BASIC OPERATION

■ Mode selection criteria

AUTO mode

No (fixed)

USER mode

Does distance between

workpiece and head vary?

Yes

Use exclusive mounting

bracket (ZJ-XBU) (sold separately)

for static electricity sensor and

displacement sensor?

Yes

FIX mode

■ USER mode

Enter the current distance "d" (fixed) between the workpiece and the Sensor Head.

If "d" changes, enter the sensor distance value again.

Static electricity sensor ZJ-SD

d (60 mm)

Workpiece

ZJ-SD

User’s Manual

Section 3 BASIC OPERATION

Section 3 Setting the Installation Distance

■ AUTO mode

Enter the current distance "d" between the workpiece and the Sensor Head.

Enter the sensor distance value again when the relationship between the static electric

sensor and the displacement sensor changes.

Displacement sensor

Static electricity sensor ZJ-SD

"d" input (60 mm)

Workpiece

Corrected electric potential value is displayed on amplifier according to distance correction coefficient held by ZJ-S sensor.

Amplifier automatically recognizes distance B (A-d) between displacement sensor and static electricity sensor by input of "d". Change in distance with workpiece is sensed based on this value, and electric potential value is corrected.

■ FIX mode

Fix the static electricity sensor (ZJ-SD) and the laser sensor (ZX-LD__) or static

electricity sensor (ZJ-SD) and the ultrasonic sensor (ZX-UD__) to the exclusive

mounting bracket (ZJ-XBU1). Simply setting the FIX mode frees you from the need to

input the distance value.

Mounting bracket (ZJ-XBU1)

Displacement

Static electricity sensor ZJ-SD

Corrected electric potential value is displayed on amplifier according to distance correction coefficient held by ZJ-S sensor.

sensor

Workpiece

Distance B is stored on amplifier beforehand by securing onto exclusive mounting bracket. Change in distance with workpiece is sensed based on value of A-B, and electric potential value is corrected.

ZJ-SD

User’s Manual

Moving to FUN Mode and DIST

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT keys to display

[DIST] on the main display.

Section 3

Setting the Installation Distance

Setting the Distance Measurement Mode

3. Press the UP or DOWN key.

The sub-display flashes.

4. Select the distance correction method.

5. Press the ENT key to confirm the settings.

This sets the selected mode.

Setting the sensor distance value (when [USER] or [AUTO] is selected in the distance measurement mode)

6. Use the LEFT and RIGHT keys to display

[S-DIS] on the main display.

In the case of [AUTO]/[FIX]: The distance values currently

recognized by the static electric sensor are displayed.

Section 3 BASIC OPERATION

In the FIX mode, the sensor distance values

need not be entered.

7. Press the UP or DOWN key.

The leftmost digit of the sub-display flashes.

8. Measure the sensor distance value.

9. Press the ENT key to confirm the settings.

This registers the specified distance.

Moves from one digit

to another.

Changes the numeric value.

ZJ-SD

User’s Manual

Section 3 BASIC OPERATION

Section 3 Setting the Installation Distance

MEMO

ZJ-SD

User’s Manual

Section 4 MAIN APPLICATIONS AND SETTING METHODS

Measuring Sheet Workpieces 46

Section 4 MAIN APPLICATIONS AND SETTING METHODS

ZJ-SD

User’s Manual

Section 4 Measuring Sheet Workpieces

Measuring Sheet Workpieces

This section describes how to measure the electric potential of the surface of a workpiece,

using a PCB as an example.

PCB

Section 4 MAIN APPLICATIONS AND SETTING METHODS

■Flow of Operation

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

Mounting on the

Device

Setting the Measurement Timing

2 5

Correcting the Measurement Reference

Measuring Reference Samples

Setting the Measurement Mode

Setting Tolerance

Judgment Values

Setting the Distance Measurement Mode

Setting the Sensor Distance Val ue

ZJ-SD

User’s Manual

Section 4

Measuring Sheet Workpieces

Mounting on the Device

Mount the Sensor Head on the inspection device.

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

wires.

Installing Sensor Heads p.15

Correcting the Measurement Reference Voltage

Correct the electric potential that becomes the reference for measuring static electricity.

Correcting the Measurement Reference Voltage p.36

Section 4 MAIN APPLICATIONS AND SETTING METHODS

Setting the Measurement Mode

Select either the standard mode or high-precision mode.

Selecting the Measurement Mode p.40

Setting the Distance Measurement Mode

Select one of the USER, AUTO and FIX modes.

If the distance between the workpiece and the sensor is fixed, select the USER mode. If the

distance varies, select the AUTO mode. If the distance varies and the exclusive mounting bracket

(ZJ-XBU1) is used for securing the sensor, select the FIX mode.

Setting the Installation Distance p.41

ZJ-SD

User’s Manual

Section 4 Measuring Sheet Workpieces

Setting the Sensor Distance Value

Set the distance values of the workpiece and sensor.

• In the USER mode, the distance values are fixed by the specified distance.

• In the AUTO mode, the positional relationship between the displacement sensor and

the ZJ-SD sensor is registered using preset distances so that distance correction

using the displacement sensor is possible.

In the FIX mode, the sensor distance values need not be entered.

Setting the sensor distance value (when [USER] or [AUTO] is selected in the distance measurement mode) p.43

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.

If the timing cannot be entered from the device, select [DIST] at "Hold trigger" so that sampling can

be performed matched to the distance values measured by the distance sensor.

Sampling

Measured value

The bottom value is held.

Refer to "Section 5 DETAILED SETTINGS" for details on settings.

Using the Hold Functions p.53

ZJ-SD

User’s Manual

Section 4

Measuring Sheet Workpieces

Measuring Reference Samples

The difference in the electric potential with 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 .

Section 4 MAIN APPLICATIONS AND SETTING METHODS

Refer to "Section 5 DETAILED SETTINGS" for details on settings.

Position Teaching p.66

ZJ-SD

User’s Manual

Section 4 Measuring Sheet Workpieces

Setting Tolerance Judgment Values

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

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

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

Output type = standard: "HIGH" "PASS" "LOW"

Output type = warning: "WARN" "OK" "NG"

Measurement result Judgment result

Measurement result > HIGH threshold HIGH

LOW threshold ≤ Measurement result ≤ HIGH threshold PASS

Section 4 MAIN APPLICATIONS AND SETTING METHODS

LOW threshold > Measurement result LOW

|Measurement result| > warning level (*) WARN

LOW threshold ≤ measurement result ≤ HIGH threshold OK

Measurement result > HIGH threshold Or LOW threshold > Measurement result

(*)The level is judged by absolute values as plus and minus warning levels exist.

Setting the Warning Level (Output type) p.82

Refer to "Section 5 DETAILED SETTINGS" for details on operation.

Inputting Threshold Values Directly p.65

ZJ-SD

User’s Manual

Section 5 DETAILED SETTINGS

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

Section 5 DETAILED SETTINGS

ZJ-SD

User’s Manual

Section 5 Setting the Number of Samples to Average

Setting the 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.

Note, however, that if this setting is made, the response time for judgment and linear outputs

drops.

Section 5 DETAILED SETTINGS

Selection for No. of

samples to average

12 ms

23 ms

45 ms

89 ms

16 17 ms

32 33 ms

64 65 ms

128 129 ms

256 257 ms

512 513 ms

1024 1025 ms

Moving to the FUN mode and AVE

Response time

In the case of the static electricity sensor head, the

number of samples to average has been set to 64

before shipment from the factory.

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT keys to display

[AVE] on the main display.

In general, when the number of samples to average is

multiplied by "n", the resolution increases by .

Selecting the number of samples to average

3. Press the UP or DOWN key.

The sub-display flashes.

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.

This registers the setting.

ZJ-SD

User’s Manual

Section 5

Using the Hold Functions

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.

■ Flow of Operation

Selecting the Hold

Condition for

Measured Values

Setting the Trigger

for Measurement in

the Hold Mode

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.

After sampling is started, the CLAMP value is output until the first sampling period ends.

What is the "CLAMP value?" p.77

(If required)

Set the Trigger

Direction and

Self-trigger Level

(If required)

Setting the Delay

Time

Section 5 DETAILED SETTINGS

Any of the seven settings shown in the following table can be selected as the hold

condition.

Selection Details

OFF (default)

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

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

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

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

Maximum

value

Current measured value

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

Current measured value

Sampling period

Minimum

value

Sampling period

Output

ZJ-SD

User’s Manual

Section 5 DETAILED SETTINGS

Section 5 Using the Hold Functions

Selection Details

PP-H (Peak-to-peak hold)

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

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

The difference between the minimum and maximum values is held. Select this option mainly to detect vibration. The output changes at the end of the sampling period and is held until the end of the next sampling period.

Maximum value

Current measured value

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

Current measured value

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

Sampling period

Minimum value

Output (maximum value

- minimum value)

Output

value

(average of measured values)

Output

Current measured value

MASK (Mask hold) The measured value is updated only during the sampling period. When the

sampling period ends, the measured value is held until the start of the next sampling period or until a reset signal is received.

Sampling period

PB-H (Peak-and-bottom hold)

The minimum and maximum values during the sampling period are held. The maximum value is displayed on the main display and the minimum value is displayed on the sub-display.

Sampling period Sampling period

Sampling period

Output

Sampling period

Reset

Maximum value

Minimum

value

Maximum

Minimum

ZJ-SD

User’s Manual

Moving to the 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 the hold condition

3. Press the UP or DOWN key.

The sub-display flashes.

4. Use the UP and DOWN keys to select the

desired hold condition.

5. Press the ENT key to confirm the setting.

This registers the setting.

Section 5

Using the Hold Functions

Section 5 DETAILED SETTINGS

ZJ-SD

User’s Manual

Section 5 Using the Hold Functions

Setting the Trigger for Measurement in the Hold Mode

Use the UP and DOWN keys to select the desired measurement start conditions.

Selection Details

TIMNG (Timing input)

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

Section 5 DETAILED SETTINGS

(default)

DIST (distance trigger)

Timing input

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

sampling period are not synchronous. Sampling ends after the specified

sampling period has elapsed.

The duration that the displacement sensor detects the specified distance is the sampling period. This option can be selected only when a displacement sensor is used. (Example: When trigger direction = UP)

Trigger direction: UP

Trigger level

Displacement sensor

measured value

Specify the trigger direction, self-trigger level and self-trigger hysteresis

width.

OFF

Sampling period

Selecting the trigger type

1. Use the LEFT and RIGHT keys to display

[H-TRG] on the main display.

H-TRG is not displayed if the hold condition is set to

[OFF].

2. Press the UP or DOWN key.

The sub-display flashes.

ZJ-SD

User’s Manual

3. Use the UP or DOWN key to select the

desired trigger type.

There are two trigger types: [TIMNG] and [DIST].

4. Press the ENT key to confirm the setting.

This registers the selected trigger type.

Section 5

Using the Hold Functions

SUB

Section 5 DETAILED SETTINGS

ZJ-SD

User’s Manual

Section 5 Using the Hold Functions

Setting the Trigger Condition

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

The trigger mode can be selected only when [DIST] is selected as the hold trigger.

Selection Details

UP (Self-up trigger)

The period in which the displacement sensor measured value is greater than the specified self-trigger level is the sampling period. Hold measurement is possible without a sync input. Specify self-trigger level -Low [H-LVL].

Section 5 DETAILED SETTINGS

Hysteresis width (for self-trigger)

Operation point Return point

(default)

DOWN (Self-down trigger)

Self-trigger level

Displacement sensor measured value

Sampling period

The period in which the displacement sensor measured value is lower than the specified self-trigger level is the sampling period. Hold measurement is possible without a sync input. Specify self-trigger level -High [H-LVH].

Displacement sensor measured value

Self-trigger level

Sampling period

Hysteresis width (for self-trigger)

Operation point Return point

WINDOW The period in the range between the displacement sensor measured value's high

and low self-trigger levels is the sampling period. Specify self-trigger level -High [H-LVH] and self-trigger level -Low [H-LVL].

High

Self-trigger level

Low

Displacement sensor measured value

ZJ-SD

User’s Manual

Sampling period

Sampling period Sampling period

• Hysteresis (hysteresis width)

Set the hysteresis based on the fluctuations in the measured values around the trigger level.

Hysteresis is applied from the start of the sampling period and prevents timing input chattering.

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

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

sampling is not affected.

• When a delay time is set, the timing when the measured value falls below or exceeds the self-

trigger level is not synchronous with the end of the sampling period. Sampling ends after the

specified sampling period has elapsed.

Selecting the trigger direction

1. Use the LEFT and RIGHT keys to display [H-

TRD] on the main display.

H-TRD is not displayed if the hold condition is set to

[OFF].

Section 5

Using the Hold Functions

Section 5 DETAILED SETTINGS

2. Press the UP or DOWN key.

The sub-display flashes.

3. Use the UP or DOWN key to select the

desired trigger type.

[There are three trigger types: [UP], [DOWN] and

[WINDW].

4. Press the ENT key to confirm the setting.

This registers the selected trigger type.

Setting the self-trigger level (example: when [WINDW] is selected as the trigger direction)

There are two self-trigger levels, [H-LVH] and [H-LVL]. The self-trigger level to be specified differs

according to the trigger direction.

• When trigger direction = UP, specify [H-LVL].

• When trigger direction = DOWN, specify [H-LVH].

• When trigger direction = WINDOW, specify both [H-LVH] and [H-LVL].

ZJ-SD

User’s Manual

Section 5 Using the Hold Functions

5. Use the LEFT or RIGHT key to display

[H-LVH] on the main display.

H-LVH is not displayed if timing input [TIMNG] is set as

the trigger.

6. Press the UP or DOWN key.

The leftmost digit of the sub-display flashes.

Section 5 DETAILED SETTINGS

7. Use the cursor keys to set the desired

self-trigger level.

8. Press the ENT key to confirm the setting.

This registers the trigger level.

9. Use the LEFT or RIGHT key to display

[H-LVL] on the main display.

H-LVL is not displayed if timing input [TIMNG] is set as

the trigger.

10. Press the UP or DOWN key.

The leftmost digit of the sub-display flashes.

11. Use the cursor keys to set the desired self-

trigger level.

Moves from one digit to

another.

Changes the numeric value.

Moves from one digit to

another.

Changes the numeric value.

12. Press the ENT key to confirm the setting.

This registers the trigger level.

ZJ-SD

User’s Manual

Setting the hysteresis width (when [DIST] is selected as the hold trigger)

13. Use the LEFT and RIGHT keys to display

[H-HYS] on the main display.

H-HYS is not displayed if timing input [TIMNG] is set as

the trigger.

14. Press the UP or DOWN key.

The leftmost digit of the sub-display flashes.

Section 5

Using the Hold Functions

15. Use the cursor keys to set the hysteresis

width for the trigger level.

16. Press the ENT key to confirm the setting.

This registers the hysteresis width.

Moves from one digit to

another.

Changes the numeric value.

Section 5 DETAILED SETTINGS

ZJ-SD

User’s Manual

Section 5 Using the Hold Functions

Setting the Delay Time

Set the delay time function, for example, to ignore measured values immediately after a

hold trigger is detected in order to avoid fluctuation of signals near the sensing object

boundary.

The delay time (the delay between detection of the trigger and 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 trigger detection interval.

• If the next trigger input for measurement is detected before the sum of the delay time and sampling

period have elapsed, that trigger input is ignored and is not reflected in sampling.

• Triggers are detected when the hold trigger and trigger condition is satisfied (ex: when the timing

input turns ON)

Section 5 DETAILED SETTINGS

Timing input

Moving to the delay hold (H-DLY)

OFF

Delay time

Sampling period

Ignored Accepted

1. Use the LEFT and RIGHT keys to display

[H-DLY] on the main display.

H-DLY is not displayed if the hold condition is set to

[OFF].

2. Press the UP or DOWN key.

The sub-display flashes.

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

Delay time

4. Press the ENT key.

The H-DLY function can now be set.

ZJ-SD

User’s Manual

Setting the delay time

5. Use the LEFT and RIGHT keys to display [H-

D-T] on the main display.

H-D-T is not displayed if the H-DLY function is set to

OFF.

6. Press the UP or DOWN key.

The leftmost digit of the sub-display flashes.

Section 5

Using the Hold Functions

7. Enter the delay time (ms).

8. Press the ENT key to confirm the setting.

This registers the delay time.

Setting the sampling period

9. Use the LEFT and RIGHT keys to display [H-

S-T] on the main display.

H-S-T is not displayed if the H-DLY function is set to OFF.

10. Press the UP or DOWN key.

The leftmost digit of the sub-display flashes.

Moves from one digit to

another.

Changes the numeric value.

Section 5 DETAILED SETTINGS

11. Use the cursor keys to enter the sampling

period (ms).

12. Press the ENT key to confirm the setting.

This registers the sampling period.

Moves from one digit to

another.

Changes the numeric value.

ZJ-SD

User’s Manual

Section 5 Entering Threshold Values

Entering Threshold Values

Threshold values are set to determine the range for PASS judgments. Both HIGH and LOW

threshold values are set. There are three judgment outputs: "HIGH", "PASS" and "LOW".

HIGH threshold

Measured value

LOW threshold

Section 5 DETAILED SETTINGS

ON OFF

(ON when the measurement result is

> the HIGH threshold) (ON when the LOW threshold is ≤ the

≤

measurement result

(ON when the measurement result is

< the LOW threshold)

the HIGH threshold)

Output

HIGH

PASS

LOW

The following table outlines the three methods for setting the threshold values.

Method Details

Direct input The threshold values can be set by directly inputting the numeric values.

Direct input is useful when the criteria is known in advance or when adjusting threshold values after teaching.

Position teaching Measurement is actually performed and the measurement results are used to set

threshold values. Position teaching is useful when charge limit samples are available.

Automatic teaching Measurement is performed continuously while the keys are held down, and the

minimum and maximum measurements during that period are set as the threshold values. Automatic teaching is useful when you want to set threshold values by actually starting the device and obtaining real measurements.

Hysteresis (hysteresis width) can also be set to threshold values. Set hysteresis when judgments are

unstable to prevent chattering.

p.69

ZJ-SD

User’s Manual

Section 5

Entering Threshold Values

Inputting Threshold Values Directly

Threshold values can be set by directly inputting numeric values.

Direct input is useful when you know the standard values of the static electricity sensor

or when you want to fine-tune threshold values after teaching.

Moving to the T mode

1. Set the mode switch to T.

Setting threshold values

2. Move the threshold switch to either H or L,

i.e., the threshold to be set.

The current measured value is displayed on the main

display.

The currently set threshold value (either HIGH or LOW,

depending on the threshold switch setting) is displayed

on the sub-display.

Section 5 DETAILED SETTINGS

3. Press any cursor key.

The leftmost digit of the sub-display flashes.

4. Use the cursor keys to set the threshold

value.

5. Press the ENT key to confirm the setting.

This registers the setting.

Countermeasures for setting errors

If [ERRLH] or [ERRHL] is displayed, either of the

following errors has occurred:

• HIGH threshold value < LOW threshold value

• HIGH threshold value - LOW threshold value <

hysteresis width

Hysteresis setting p.69

If an error is displayed, the threshold values have not

been updated.

Set the threshold values again.

Moves from one digit to

another.

Changes the numeric value.

ZJ-SD

User’s Manual

Section 5 Entering Threshold Values

Position Teaching

Measurement is actually performed and the measurement results are used to set

threshold values.

Position teaching is useful when threshold samples, i.e., with the upper and lower

limits, can be obtained beforehand.

Section 5 DETAILED SETTINGS

Teaching point =

HIGH threshold

Sensing object Sensing object

Hold, trigger mode, and scaling settings that have been made before teaching are reflected in the

teaching measurements.

Moving to the T mode

1. Set the mode switch to T.

Setting threshold values

2. Move the threshold switch to either H or L,

i.e., the threshold to be set.

The current measured value is displayed on the main display.

The currently set threshold value (either HIGH or LOW,

depending on the threshold switch setting) is displayed

on the sub-display.

Teaching point =

LOW threshold

3. Place the threshold sample in position.

The main display value changes.

4. Press the ENT key for at least one second

and then release it.

The measured value at the moment that the ENT key is

released is set as the threshold value.

This threshold value is shown on the sub-display.

When [ERRLH] or [ERRHL] is displayed p.65

The threshold values set using position teaching can also be changed using direct input. This is

useful when setting judgment tolerances for measured values.

p.65

ZJ-SD

User’s Manual

Section 5

Entering Threshold Values

Automatic Teaching

When automatic teaching is executed, measurement is performed continuously for the

duration that the keys are held down, and the minimum and maximum measurements

during that period are set as the threshold values.

Automatic teaching is useful when you want to set threshold values by actually starting

the device and obtaining real measurements.

Hold, trigger mode, and scaling settings that have been made before teaching are reflected in the

teaching measurements.

Moving to the T mode

1. Set the mode switch to T.

2. Start the device.

Maximum value = HIGH threshold

Move

Minimum value = LOW threshold

Sensing objectSensing object

Section 5 DETAILED SETTINGS

The threshold switch may be set to either position. Both HIGH and LOW thresholds are set,

regardless of the switch setting.

ZJ-SD

User’s Manual

Section 5 Entering Threshold Values

Setting threshold values

3. Start measurement.

Measurement continues for the duration that the ENT

and RIGHT keys are held down.

[AUTOT] flashes on the sub-display.

4. To end measurement, release the ENT and

RIGHT keys.

The maximum measured value during the measurement

period is set as the HIGH threshold value and the

minimum measured value is set as the LOW threshold

value.

Section 5 DETAILED SETTINGS

The new threshold value (either HIGH or LOW,

depending on the threshold switch setting) is displayed

on the sub-display.

When [ERRLH] is displayed p.65

The threshold values set using automatic teaching can also be changed using direct input. This is

useful when setting judgment tolerances for measured values.

p.65

ZJ-SD

User’s Manual

Section 5

Entering Threshold Values

Hysteresis Setting

Set the hysteresis width (difference between operation and return points) for the upper

and lower limits of judgments if the HIGH, PASS, or LOW judgment is unstable near the

sensing boundaries.

HIGH threshold

Measured value

LOW threshold

Hysteresis (hysteresis width)

Operation point Return point

HIGH

Output

Moving to the FUN mode and HYS

PASS

LOW

To prevent self-trigger chattering, set hysteresis for the self-trigger.

ON OFF

p.56

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT keys to display

[HYS] on the main display.

3. Press the UP or DOWN key.

The leftmost digit of the sub-display flashes.

4. Use the cursor keys to enter the hysteresis

width.

Section 5 DETAILED SETTINGS

Moves from one digit to

another.

Changes the numeric value.

5. Press the ENT key to confirm the setting.

This registers the setting.

Countermeasures for setting errors

If [ERROV] is displayed, HIGH threshold - LOW

threshold < the hysteresis width.

If an error is displayed, the threshold values have not

been updated.

Set the values again or change the threshold values.

ZJ-SD

User’s Manual

Section 5 Linear Output

Linear Output

Output Settings (Monitor Focus)

"Linear output" refers to the conversion of measurement results to a 3 to 21 mA current

output range or a -5 to +5 V voltage output range. The relationship between displayed

measured values and output values can be set freely. Match the settings to suit the

connected external device.

Enter the output values for any two current values or voltage values to set the output

range.

Example: Setting 5 kV to 4 mA output and 15 kV to 20 mA output (for current output)

Section 5 DETAILED SETTINGS

Output current

(mA)

Allow at least 1 kV between the two points to specify.

The threshold values are cleared when the monitor focus is set. Reset the threshold values after

setting the monitor focus.

Measured value

(kV)

Output current

(mA)

515

Measured value

(kV)

Threshold p.36

ZJ-SD

User’s Manual

Section 5

Linear Output

This section describes how to set the output range, using an example of current output

with a range with the following conversions: 5 kV to 4 mA and 15 kV to 20 mA. Change

the values in this example for voltage output as necessary.

Output current

(mA)

Output current

(mA)

Measured value

(kV)

1. Turn OFF the Amplifier Unit.

2. Move the current/voltage switch to current

output. The switch is located on the bottom of

the Amplifier Unit.

The default setting is voltage output.

Moving to the FUN mode and SPCL

(B)

515

(A)

Measured value

(kV)

Section 5 DETAILED SETTINGS

Voltage output

Current output

3. Turn ON the Amplifier Unit and move the

mode switch to FUN.

4. Use the LEFT and RIGHT keys to display

[SPCL] on the main display.

Moving to FOCUS

5. Press the UP or DOWN key.

The sub-display flashes.

6. Use the UP and DOWN keys to display [SET]

or [ALL].

7. Press the ENT key.

ZJ-SD

User’s Manual

Section 5 Linear Output

8. Use the LEFT and RIGHT keys to display

[FOCUS] on the main display.

Selecting current (mA) or voltage (V) output

9. Press the UP or DOWN key.

The sub-display flashes.

10. Display [mA].

Always select the same output as the current/voltage switch selection on the bottom of the Amplifier

Unit.

Setting the first point (A)

Section 5 DETAILED SETTINGS

11. Press the ENT key.

The display changes to the display for setting the first

point (A).

The output current value is displayed on the main

display.

The corresponding measured value is displayed on the

sub-display and the leftmost digit flashes.

12.

Set the output current value and the

corresponding measured value for the first point.

Set a measured value within the measuring range. If

scaling or calculation has been set, set a value that

reflects those settings.

The flashing digit, i.e., the digit to which a value can be set, changes as shown in the diagram

Digit shift on sub-display

Moves from one digit to

another.

Changes the numeric value.

Shifts one digit

at a time.

Switching from the sub-display to the main

display and vice versa (from the leftmost/

rightmost digit of the sub-display)

ZJ-SD

User’s Manual

13. Press the ENT key to confirm the setting.

This confirms the setting for the first point.

The screen for setting the second point is displayed.

Setting the second point (B)

14. Use the same procedure as for the first point

to set the output current value and

corresponding measured value for the

second point.

15. Press the ENT key to confirm the setting.

Section 5

Linear Output

Section 5 DETAILED SETTINGS

Confirming completion of monitor focus settings

The display indicates [OK] if monitor focus has been set

correctly.

If not, the display indicates [NG].

If [NG] is displayed, check the following points and

execute the monitor focus again.

• Is the measured value set on the sub-display within the

measuring range (with scaling and calculation settings

reflected if set)?

• Are the measured values of the first and second points

separated by at least 1% of the rated measuring range?

• Are the current (or voltage) values for the two points the

same?

ZJ-SD

User’s Manual

Section 5 Linear Output

Correcting Linear Output Values

Discrepancies may occur between the linear output current (or voltage) values set on

the Amplifier Unit and the actual current (or voltage) values measured due to the

conditions for the connected external device or other factors. The linear output

correction function can be used to correct this discrepancy.

Output values are corrected by entering the correction value for the current (or voltage)

values of any two points.

Set the monitor focus function and select either current or voltage output beforehand.

p.70

This section uses current output as an example. Change the values in this example for

voltage output as necessary.

Section 5 DETAILED SETTINGS

1. Connect the linear output to an external ammeter.

Moving to the FUN mode and SPCL

2. Turn ON the Amplifier Unit and move the

mode switch to FUN.

3. Use the LEFT and RIGHT keys to display

[SPCL] on the main display.

Moving to L-ADJ

4. Press the UP or DOWN key.

The sub-display flashes.

5. Use the UP and DOWN keys to display [SET]

or [ALL].

ZJ-SD

User’s Manual

6. Press the ENT key.

7. Use the LEFT and RIGHT keys to display [L-

ADJ] on the main display.

The units for the monitor focus settings (mA or V) are

displayed on the sub-display.

8. Press the ENT key.

The display changes to the display for setting the first

point (A).

The output current value is displayed on the main

display.

The correction value is displayed on the sub-display and

the leftmost digit flashes.

Setting the first point (A)

Section 5

Linear Output

Section 5 DETAILED SETTINGS

9. Set the output current and correction values

for the first point.

Adjust the correction value on the sub-display so that the

ammeter reading and the output current shown on the

main display are the same.

The larger the correction value, the larger the output current.

The correction value can be set within the range -999 to 999.

To set a negative value, make the leftmost digit of the sub-display flash and change the value. If the correction value changes by 4, the linear output will change by approx. 1.4 µA (0.7 mV).

The flashing digit, i.e., the digit to which a value can be set, changes as shown in the diagram

Digit shift on sub-display

Switching from the sub-display to the main

display and vice versa (from the leftmost/rightmost digit of the

sub-display)

Moves from one digit to

another.

Changes the numeric value.

Shifts one digit at a time.

10. Press the ENT key to confirm the setting.

This confirms the correction value for the first point.

The screen for setting the second point is displayed.

ZJ-SD

User’s Manual

Section 5 DETAILED SETTINGS

Section 5 Linear Output

Setting the second point (B)

11. Use the same procedure as the first point to

set the correction value for the second point.

12. Press the ENT key.

Confirming setting results

If linear output correction has been registered correctly,

the sub-display will show [OK].

If not, the display indicates [NG].

Check that the current (or voltage) values for the two

points are not the same and execute again.

ZJ-SD

User’s Manual

Output Settings for Non-measurement

The linear output method for when a reset is input can be set.

Section 5

Linear Output

Selection

KEEP (default)

CLAMP All outputs turn OFF. The set CLAMP value is output.

• In the case of hold measurement

Even if [KEEP] is set, the output before the first hold value is obtained is the same as [CLAMP].

• Even in FUN mode, the outputs are made according to the non-measurement settings.

Moving to the FUN mode and SPCL

Judgment outputs Linear output

The measured value immediately before measurement is stopped is held and output.

Outputs

The following options are available:

• At current output: 3 to 21 mA or maximum (approx. 23 mA)

• At voltage output: -5 to 5 V or maximum (approx.

5.5 V)

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT keys to display

[SPCL] on the main display.

Section 5 DETAILED SETTINGS

Moving to RESET

3. Press the UP or DOWN key.

The sub-display flashes.

4. Use the UP and DOWN keys to display [ETC]

or [ALL].

5. Press the ENT key.

ZJ-SD

User’s Manual

Section 5 Linear Output

6. Use the LEFT and RIGHT keys to display

[RESET] on the main display.

Selecting output status at non-measurement

7. Press the UP or DOWN key.

The sub-display flashes.

8. Use the UP and DOWN keys to select either

KEEP or CLAMP.

Section 5 DETAILED SETTINGS

9. Press the ENT key to confirm the setting.

This registers the setting.

Next, set the clamp value if [CLAMP] is selected.

Setting the clamp value (only when CLAMP is selected)

10. Use the LEFT and RIGHT keys to display

[CLAMP] on the main display.

[CLAMP] is not displayed if [KEEP] has been selected.

11. Press the UP or DOWN key.

The sub-display flashes.

12. Select the clamp value.

13. Press the ENT key to confirm the setting.

This registers the setting.

ZJ-SD

User’s Manual

Section 5

Setting Judgment Output Timing (Timer)

The timing of judgment outputs can be adjusted to match the operation of external devices.

Selection Details

OFF

The judgment is output as soon as the judgment result has been confirmed.

Measured value

HIGH threshold

LOW threshold

(default)

OFF-D (OFF-delay timer)

ON-D (ON-delay timer)

After the judgment result has been confirmed, changing of the PASS output state to OFF is delayed by the time set to the timer. Also, changing of the HIGH and LOW output states to ON is delayed by the time set to the timer.

After the judgment result has been confirmed, changing of the PASS output state to ON is delayed by the time set to the timer. Also, changing of the HIGH and LOW output states to OFF is delayed by the time set to the timer.

HIGH output

PASS output

LOW output

HIGH threshold

LOW threshold

HIGH output

PASS output

LOW output

HIGH threshold

LOW threshold

ON OFF

Measured value

ON OFF

Measured value

Section 5 DETAILED SETTINGS

Timer time

HIGH output

PASS output

LOW output

ON OFF

Timer time

User’s Manual

ZJ-SD

Section 5 Setting Judgment Output Timing (Timer)

Selection Details

1-Sht (One-shot timer)

When the judgment result changes from HIGH to PASS or from LOW to PASS, the PASS output turns ON with a pulse width equivalent to the time set to the timer. Neither the HIGH nor the LOW output is output.

Measured value

HIGH threshold

LOW threshold

Section 5 DETAILED SETTINGS

HIGH output

PASS output

LOW output

ON OFF

Timer time

The following description uses the OFF-delay timer as an example. Change the values in this

example if other timers are used.

Moving to the FUN mode and TIMER

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT keys to display

[TIMER] on the main display.

Selecting the type of timer

3. Press the UP or DOWN key.

The sub-display flashes.

4. Use the UP or DOWN key to select the

desired timer type.

ZJ-SD

User’s Manual

Setting Judgment Output Timing (Timer)

5. Press the ENT key to confirm the setting.

This registers the setting.

If anything other than [OFF] is selected, set the timer

time by the following procedure.

Setting the timer time (when a timer type other than [OFF] is selected)

6. Use the LEFT and RIGHT keys to display [T-TIM] on the main display.

T-TIM cannot be displayed if [OFF] is selected.

7. Press the UP or DOWN key.

The leftmost digit of the sub-display flashes.

Section 5

Section 5 DETAILED SETTINGS

8. Use the cursor keys to set the timer time

(ms).

9. Press the ENT key to confirm the setting.

This registers the setting.

Moves from one digit to

another.

Changes the numeric value.

ZJ-SD

User’s Manual

Section 5 Setting the Warning Level (Output type)

Setting the Warning Level (Output type)

Threshold values (warning level) other than HIGH, PASS or LOW can be set and displayed.

Selection Details

STAND (standard)

The warning level is not set. Only the HIGH, PASS or LOW judgments are output.

When timer = OFF

Measured value

HIGH threshold

LOW threshold

Section 5 DETAILED SETTINGS

(default)

WARN (warning)

The warning level is set. Next, specify the warning level value.

• The warning status continues to be output until one of "reset input ON", "switching to FUN mode" or "power OFF".

• The warning level value is set to the plus and minus directions. (Example: When "15" is specified, the +15 and -15 become the warning level values.)

■ Judgment output (judgment indicator)

Hold Output type OPE1 OPE2 OPE3

Other than peak and bottom hold

Standard HIGH PASS LOW

Warning WARN OK NG

Peak and bottom hold Not related WARN Peak-OK Bottom-OK

OK: Judged as PASS

NG: Other than PASS (HIGH or LOW)

WARN: ON in warning state

Peak-OK: ON when the peak hold result is OK (PASS)

Bottom-OK: ON when the bottom hold result is OK (PASS)

HIGH output

PASS output

LOW output

ON OFF

When timer = OFF

Measured value

Warning level (+ side)

HIGH threshold

LOW threshold

Warning level (- side)

Warn output

OK output

NG output

ON OFF

Reset input ON

ZJ-SD

User’s Manual

Setting the Warning Level (Output type)

Moving to the FUN mode and OUTPT

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT keys to display

[SPCL] on the main display.

3. Press the UP or DOWN key.

The sub-display flashes.

4. Use the UP and DOWN keys to display [ETC]

or [ALL].

Section 5

5. Press the ENT key.

6. Use the LEFT and RIGHT keys to display

[OUTPT] on the main display.

Selecting the output type

7. Press the UP or DOWN key.

The sub-display flashes.

8. Select the output type.

When a warning level is set, select [WARN], and when

not set, select [STAND].

9. Press the ENT key to confirm the setting.

This registers the setting.

When [WARN] is selected, set the warning level.

Section 5 DETAILED SETTINGS

ZJ-SD

User’s Manual

Section 5 Setting the Warning Level (Output type)

Setting the warning level (only when [WARN] is selected as the output type)

10. Use the LEFT and RIGHT keys to display

[WARN] on the main display.

11. Press the UP or DOWN key.

The leftmost digit of the sub-display flashes.

Section 5 DETAILED SETTINGS

12. This sets the warning level value.

13. Press the ENT key to confirm the setting.

This registers the setting.

Moves from one digit to

another.

Changes the numeric value.

ZJ-SD

User’s Manual

Section 5

Using the Area Correction Function

The detection area of the static electricity sensor changes and the average electric potential

value inside the detection area is displayed according to the distance between the workpiece

and the sensor head. This is why the area correction function is provided so that the area of

the sensing target can be specified and an accurate electric potential can be displayed.

The area sometimes cannot be corrected correctly due to the charged state and the environment around the

sensing object. If this happens, use the sensor with the area correction function set to OFF.

Selection Details

OFF

The entire area is measured.

Static Electricity Sensor ZJ-SD Sensor Head

(default)

ON Only a specific area is measured.

Specify the size of the area [SIZE].

Enter the size of the area to be

sensed (mm dia.) as the [SIZE].

d (mm)

W dia. (mm)

d' (mm)

W' dia. (mm)

Average electric potential value of W and W' is calculated.

Detection area (W, W') differs according to distance (d, d') between workpiece and sensor head.

Static Electricity Sensor ZJ-SD Sensor Head

d (mm)

Z dia.

(mm)

Numerical value after correction on electric potential value in range Z is displayed.

Electric potential value after distance correction with detection area (W) is determined from distance d measured by displacement sensor.

Section 5 DETAILED SETTINGS

W dia.

(mm)

ZJ-SD

User’s Manual

Section 5 DETAILED SETTINGS

Section 5 Using the Area Correction Function

Moving to the FUN mode and AREA

1. Set the mode switch to FUN.

2. Use the LEFT and RIGHT keys to display

[AREA] on the main display.

Selecting area correction

3. Press the UP or DOWN key.

The sub-display flashes.

4. Select whether or not to enable the area

correction function.

To use the area correction function, select [ON].

5. Press the ENT key to confirm the setting.

This registers the setting.

Next, set the area size if [ON] is selected.

Setting the area size (only when [ON] is selected)

6. Use the LEFT and RIGHT keys to display

[SIZE] on the main display.

SIZE is not displayed if [OFF] is selected.

7. Press the UP or DOWN key.

The leftmost digit of the sub-display flashes.

ZJ-SD

User’s Manual

OMRON ZJ-SD User Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Introduction

WARRANTY

Precautions for Safe Use

Precautions for Correct Use

Editor's Note

Page Format

Notational Conventions

CONTENTS

Section 1 FEATURES

ZJ-SD Features

Extendable Sensor Head Cables

Monitoring Measurement Status

Section 2 PREPARATION FOR MEASUREMENT

Basic Configuration

When used in combination with a displacement sensor

Part Names and Functions

Amplifier Unit

Sensor Head

Calculating Unit

Interface Unit

Installing the Amplifier Unit

Installing Sensor Heads

Sensor Head

Preamplifier

Mounting on the Mounting Bracket

Connections

Sensor Head

Calculating Unit

Interface Unit

Wiring Input/Output Cables

I/O Circuit Diagrams

Section 3 BASIC OPERATION

Flow of Operation

Basic Knowledge for Operation

Switching Modes

Reading Displays

Key Operations

Condition Settings

Inputting Numeric Values

Function Transition Charts

RUN Mode

T Mode

FUN Mode

Correcting the Measurement Reference Voltage

Resetting Zero

Clearing the Reference Voltage Correction Value

Saving the Zero Reset Level for the Reference Voltage in Zero Reset Memory

Selecting the Measurement Mode

Setting the Installation Distance

Section 4 MAIN APPLICATIONS AND SETTING METHODS

Measuring Sheet Workpieces

Mounting on the Device

Correcting the Measurement Reference Voltage

Setting the Measurement Mode

Setting the Distance Measurement Mode

Setting the Sensor Distance Value

Setting Measurement Timing

Measuring Reference Samples

Setting Tolerance Judgment Values

Section 5 DETAILED SETTINGS

Setting the Number of Samples to Average

Using the Hold Functions

Selecting the Hold Condition for Measured Values

Setting the Trigger for Measurement in the Hold Mode

Setting the Trigger Condition

Setting the Delay Time

Entering Threshold Values

Inputting Threshold Values Directly

Position Teaching

Automatic Teaching

Hysteresis Setting

Linear Output

Output Settings (Monitor Focus)

Correcting Linear Output Values

Output Settings for Non-measurement