Omron EJ1G User Manual

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USER’S MANUAL

Modular Temperature Controllers for Gradient Temperature Control

EJ1G

Cat. No. H143-E1-01

EJ1G Modular Temperature Controllers for Gradient Temperature Control

User’s Manual

Produced October 2006

Preface

r f

This manual descr ibes the EJ1G Modular Temperature Controllers for Gradient Temperature Control, including information on functions, performances, and application methods.

Observe the following precautions when us in g an EJ 1G Mod ular Temperature Controllers for Gradient Temperature Control.

Visual Aids

The following headings appear in the le ft column of the manual to help you locate different types of information.

• Do not allow the Temperature Controller to b e handled by anyone except a specialist with sufficient knowledge of electrical systems.

• Read this manual thoroughly and be sure you understand it before attempting to use the Temperature Controlle r and use the Temperature Controller correctly according to the information provided.

• Keep this manual in a safe place for easy reference.

Note Indicates information of pa rticular interest for efficient and convenient opera-

tion of the product.

1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.

 OMRON, 2006

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system , or tra nsmitted, in any form, o by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o OMRON.

No patent liability is assumed with respect to th e use of the in fo rmation c ontain ed he rein. M oreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication.

Read and Understand this Manual

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

Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the 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.

Application Considerations

SUITABILITY FOR USE

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 products. 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 manual.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical

equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RA TED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PROGRAMMABLE PRODUCTS

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

Disclaimers

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 products 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.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

PERFORMANCE DATA

Performance data given in this manual 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.

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.

vii

Safety Precaution s

■ Definition of Precautionary Information

The following notation is used in this manual to provide precau tions required to ensure safe usage of the product.

The safety precautions that are provided are extremely importan t to safety. Always read and heed the information provided in all safety precautions.

The following notation is used.

Indicates a potentially hazardous situation which, if not

CAUTION

■ Symbols

Symbol Meaning

Caution

avoided, is likely to result in minor or moderate injury or in property damage.

General Caution Indicates non-specific general cautions, warnings, and dangers.

Electrical Shock Caution

Indicates possibility of electric shock under specific conditions.

Prohibition

Mandatory Caution

General Prohibition

Indicates non-specific general prohibitions.

General Caution

Indicates non-specific general cautions, warnings, and dangers.

viii

■ Safety Precautions

Do not touch the terminals while power is being supplied. Doing so may occasionally result in minor injury due to electric shock.

Use a power supply that complies with the reinforced insulation specified in IEC 60664 for the EJ1 external power supply or the power supply connected to the EJ1. If non-compliant power supplies are used, electric shock may occasionally result in minor injury.

Do not allow pieces of metal, wire clippings, or fine metallic shavings or filings from installation to enter the product. Doing so may occasionally result in electric shock, fire, or malfunction.

Do not use the product where subject to flammable or explosive gas. Otherwise, minor injury from explosion may occasionally occur.

Never disassemble, modify, or repair the product or touch any of the internal parts. Minor electric shock, fire, or malfunction may occasionally occur.

CAUTION

Tighten the terminal screws to between 0.40 and

0.56 N·m. Loose screws may occasionally result in fire. Set the parameters of the product so that they are suitable for the

system being controlled. If they are not suitable, unexpected operation may occasionally result in property damage or accidents.

A malfunction in the product may occasionally make control operations impossible or prevent alarm outputs, resulting in property damage. To maintain safety in the event of malfunction of the product, take appropriate safety measures, such as installing a monitoring device on a separate line.

Gradient temperature control controls the average temperature for more than one channel. If a heater burnout occurs during gradient temperature control and the temperature of that channel decreases, physical damage may occasionally occur because the temperature of the other channels will incr ea se. When usi ng gradient temperature control, implement suitable safety measures for the entire system using heater burnout alarms or temperature information for individual channels.

Precautions for Safe Use

Be sure to observe the following precautions to prevent operation failure, malfunction, or adverse affects on the performance and functions of the product. Not doing so may occasionally result in unexpected events.

1) The product is designed for indoor use only. Do not use the product outdoors or in any of the following locations.

• Places directly subject to heat radiated from heating equipment

• Places subject to splashing liquid or oil atmosphere

• Places subject to direct sunlight

• Places subject to dust or corrosive gas (in particular, sulfide gas or ammonia gas)

• Places subject to intense temperature change

• Places subject to icing or condensation

• Places subject to vibration or strong shocks

2) Use and store the product within the rated ambient temperature and humidity ranges. Mounting two or m ore Temperature Co ntrollers side by side, or mountin g Temperature Co ntrollers above each other may cause heat to build up inside the Temperature Controllers, which will shorten th eir se rvice life. If the Temperature Controllers are mounted above each other or side by side, use forced cooling by fans or other means of air ventilation to cool down the Temperature Controllers.

3) To allow heat to esc ape, do not block the area around th e product. Do not block the ventilation ho les on the product.

4) Be sure to wire properly with correct polarity of terminals.

5) Use specified size (M3, width 5.8 mm or less) crimped terminal s for wiri ng. Use a gage of AWG22 to AWG14 (equal to cross-sectional area of 0.326 to 2.081 mm AWG28 to AWG16 (equal to cross-sectional a r ea o f 0.0 81 to 1.309 mm length is 6 to 8 mm.) Up to two wires of same size and type, or two crimped terminals can be inserted into a single terminal .

6) Do not wire terminals that do not have an identified use.

7) To reduce inductive noise, keep the wiring for the product's terminal block away from power cables carrying high voltages or large currents. Also, do not wire power lines together with or parallel to product wiring. Using shielded cables and using separate conduits or ducts is recommended. Attach a surge suppressor or noise filter to peripheral devices that generate noise (in particular, motors, transformers, solenoids, magnetic coils or other equipment that have an inductance component). When a noise filter is used at the power supply, first check the voltage or current, and attach the noise filter as close as possible to the product. Allow as much space as possible between the product and devices that generate powerful high frequencies (high-frequency welders, high-frequency sewing machines, etc.) or surge.

8) Use the product within the rated load and power supply.

9) Make sure that the rated voltage i s attained within two se co nds o f turning ON t he power us ing a switch or relay contact. If the voltage is applied gradually, the power may not be reset or output malfunctions may occur.

10) Make sure that the product has 30 minutes or more to warm up after turning ON the power before starting actual control operations to ensure the correct temperature display.

11) The switch or circuit breaker must be within easy reach of the operator, and must be marked as a disconnecting means for this unit.

12) Do not use paint thinner or similar chemical to clean with. Use standard grade alcohol.

13) Design the system (e.g., the control panel ) allowing leeway for the delay required before produ ct outputs are valid after turning ON power to the product.

14) Never touch the electronic components, connect ors, or patter ns on prod uct boards wit h your bare hands. Always hold the product by the case. Inap propria tely handl ing the pr oduct may occasi onally da mage internal components due to static electricity.

) for power supply lines and a gage of

) for all other lines. (The s tripping

15) Use a switch, relay, or other device with contacts to turn OFF the power supply quickly. Gradually lowering the voltage of the power supply may result in incorrect outputs or memory errors.

16) Do not touch the elec tronic components with your hands or sub ject them to shock when removing the terminal block.

17) Connect only the specified number of products in only a specified configuration.

18) Mount the product to a DIN Rail mounted vertically to the ground.

19) Always turn OFF the power supply before wiring the product, replacing the product, or changing the product configuration.

20) Attach the enclosed cover seal to the connector opening on the left end Unit during installation.

21) Do not use port B on the End Unit when using port C on the HFU.

Precautions for Correct Use

● Installation

1) Do not connect an End Unit directly to an HFU.

2) Always connect an End Unit to the right side of the Basic Units.

3) Always connect the HFU to the left side of the Basic Units.

4) The EJ1 cannot be used linked to a CJ-series PLC.

5) Use the EJ1G-@@ for gradie nt temperature control. Use the EJ1N-@@ for any other type of temperature control.

6) When removing the terminal block to replace the Unit, be sure to confirm that the new Unit is the same as the Unit that is being replaced.

● Service Life

1) Use the product within the following temperature and humidity ranges.

Temperature:

Humidity: 25% to 85% When the Temperature Controller is incorporated in a control panel, make sure that the controller’s ambient temperature and not the panel’s ambient temperature does not exceed 55

2) The service life of electronic d evices like the Tem perature Controller is deter mined by the ser vice life of internal electronic components. Component service life is affected by the ambient temperature: the higher the temperature, the shor ter the service life and the lower the temperature, the longer the service life. Therefore, the service life can be extended by lowering the temperature of the Temperature Controller.

3) Mounting two or more Temperature Co ntrollers sid e by side, or moun ting Temperature Controllers a bove each other may cause heat to build up inside the Temperature Controllers, which will shorten th eir se rvice life. If the Temperature Controllers are mounted above each other or side by side, use forced cooling by fans or other means of air ventilation to cool down the Temperature Controllers. However, be sure not to cool only the terminals. Doing so will result in measurement errors.

−10 to 55°C (with no icing or condensation)

°C.

● Ensuring Measurement Accuracy

1) When extending or connecting the thermocouple lead wire, be sure to use compensating wires that match the thermocouple types.

2) When extending or connecting the lead wire of the pl ati num re si st ance thermometer, be sure to use wires that have low resistance and keep the resistance of the three lead wires the same.

3) Mount the Temperature Controller so that it is horizontally level.

4) If the measurement accuracy is low, check to see if input shift has been set correctly.

● Precautions for Operation

1) It takes a certain amount of time for the outputs to turn ON from after the power supply is tu rned ON. Due consideration must be given to this time when designing control panels, etc.

2) It takes 30 minutes from the time the product is turned ON until the correct temperature is indicated. Always turn ON the power supply at least 30 minutes before starting temperature control.

3) Avoid using the Temperat ure Con tr oll er near a radio, television set, or other wireless device. Its use would result in reception disturbance.

xii

Preparations for Use

Be sure to thoroughl y read and under stand the manual provide d with the product, and check the following points.

Timing Check point Details

Purchasing the product Product appearance After purchase, check that the product and packaging are not dented

or otherwise damaged. Damaged internal parts may prevent optimum control.

Product model and specifications

Setting the Unit Product installation

location

Wiring Terminal wiring Do not subject the terminal screws to excessive stress (force) when

Power supply inputs Wire the power supply inputs correctly. Incorrect wiring will result in

Operating environment Ambient temperature The ambient operating tem perature f or the product is −10 to 55°C (with

Vibration and shock Check whether the standards related to shock and vibration are satis-

Foreign particles Install the product in a location that is not subject to liquid or foreign

Make sure that the purchased product meets the required specifications.

Provide sufficient space around the product for heat dissipation. Do not block the vents on the product.

tightening them. Make sure that there are no loose screws after tightening terminal

screws to the specified torque of 0.40 to 0.56 N·m. Be sure to confirm the polarity for each terminal before wiring the ter-

minal block and connectors.

damage to the internal circuits.

no condensation or icing). To extend the serv ice life of the product, install it in a location with an ambient temperature as low as possible. In locations exposed to high temperatures, if necessary, cool the products using a fan or other cooling method.

fied at the installation environment. (Install the product in locations where the conductors will not be subject to vibration or shock.)

particles entering the product. If sulfide, chlorine, or other corrosive gases are present, remove the source of the gas, install a fan, or use other countermeasures to protect the product.

xiii

Related Manuals

The manuals related to the EJ1G are co nfi gured as shown in the following tables. Refer to these manuals as required.

■ EJ1G

Name Cat. No. Contents

EJ1G EJ1G-TC2A-QNHB EJ1G-TC4A-QQ EJ1G-HFUA-NFLK EJ1C-EDUA-NFLK Modular Temperature Controllers for Gradient Temperature Control User's Manual

CX-Thermo Ver. 3.@ (online help) EST2-2C-MV3

■ CS/CJ-series PLC Manuals

Name Cat. No. Contents

SYSMAC CS Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H Programmable Controllers Operation Manual

SYSMAC CJ Series CJ1G-CPU@@, CJ1M-CPU@@, CJ1G-CPU@@P, CJ1G/H-CPU@@H Programmable Controllers Operation Manual

SYSMAC CS/CJ Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1DCPU@@H, CS1D-CPU@@S, CJ1G-CP U@@, CJ1MCPU@@, CJ1G-CPU@@P, CJ1G/H-CPU@@H Programmable Controllers Programming Manual

SYSMAC CS/CJ Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1DCPU@@H, CS1D-CPU@@S, CJ1G-CP U@@, CJ1MCPU@@, CJ1G-CPU@@P, CJ1G/H-CPU@@H Programmable Controllers Instructions Reference Manual

SYSMAC CS/CJ Series CS1G/H-CPU@@-EV1, CJ1G/H-CPU@@H, CS1DCPU@@H, CS1D-CPU@@S, CJ1G-CP U@@, CJ1GCPU@@, CJ1M-CPU@@, CJ1G-CPU@@P, CJ1G/HCPU@@H, CS1W-SCB21-V1/ 41-V1 , CS1W-SCU21-V1, CJ1W-SCU21-V1/41-V1 Communications Commands Reference Manual

SYSMAC CS/CJ Series CS1W-SCB21-V1/41-V1, CS1W-SCU21-V1, CJ1WSCU21-V1/41-V1 Serial Communications Boards/Units Operation Manual

H143 (This manual)

--(Available only as online help.)

W339 Provides an outlines of and describes the design,

W393 Provides an outlines of and describes the design,

W394 Describes prog ramming and other methods to use

W340 Describes the ladder dia g ram programming

W342 Describes the C- se ries (Hos t Lin k) a nd FINS c om -

W336 Describes the use of Serial Communications Unit

Describes the following information on the EJ1G .

• Overview and features

• Basic specifications

• System design

• System configuration

• Mounting and wiring

• Maintenance

• Troubleshooting

Describes how to set paramet ers and adjus t devices (i.e., components such as Temperature Controllers) using the CX-Thermo.

installation, maintenance, and other basic operations for the CS-series PLCs.

installation, maintenance, and other basic operations for the CJ-series PLCs.

the functions of the CS/CJ-series PLCs.

instructions supported by CS/CJ-series PLCs.

munications commands used with CS/CJ-series PLCs.

and Boards to perf orm serial commu nication s with external devices, including the usage of standard system protocols for OMRON products.

xiv

■ Programmable Terminal (PT) Manuals

Name Cat. No. Contents

NS-Series NS5-SQ0@(B)-V1/V2, NS5-TQ0@(B)-V2, NS5-MQ0@(B)-V2, NS8-TV@@(B)-V1/V2, NS10-TV0@(B)-V1/V2, NS12-TS0@(B)-V1/V2 Programmable Terminals Setup Manual

NS-Series NS5-SQ0@(B)-V1/V2, NS5-TQ0@(B)-V2, NS5-MQ0@(B)-V2, NS8-TV@@(B)-V1/V2, NS10-TV0@(B)-V1/V2, NS12-TS0@(B)-V1/V2 Programmable Terminals Programming Manual

SYSMAC One NSJ Series NSJ5-TQ@@(B)-G5D, NSJ5-SQ@@(B)-G5D, NSJ8- TV@@(B)-G5D, NSJ10-TV@@(B)-G5D, NSJ12-TS@@(B)- G5D, NSJW-ETN21, NSJW-CLK21-V1, NSJW-IC101 NSJ Controllers Operation Manual

NSH Series NSH5-SQR00B-V2 Hand-held Programmable Terminal Operation Manual

NS Series NS-CA002 Programmab l e Terminals RGB and Video Input Unit Opera tion Manual

Smart Active Parts Reference Manual V087

V083 Provides an outline of, and describes the design,

V073 Describes the functions of NS-series PTs, includ-

W452 Provides an outline o f, and describes the design,

V086 (PDF only)

(PDF only)

installation, maintenance, and other basic operations for the NS-series PTs. Information is also included on connecti ng to host s and periphe ral devices , and settings required f or c ommunic ations and PT operation.

ing screen configurations, object functions, and host communications for the PT.

installation, maintenance, and other basic operations for the NSJ-series NSJ Controllers. Information is also included on features, system configuration, wiring, I/O memory allocations, and troubleshooting.

Use together with the CJ-series Programmable Controllers Oper ati on Ma n ual (W393), CS/CJseries Programmable Controllers Programming

Manual (W394), and NS-Series Programmable Terminals Setup Manual (V083).

installation, maintenance, and other basic operations for the NSH-series NSH5 Hand-held Programmable Terminal. Information is also included on features, system configuration, wiring, I/O memory allocations, and troubleshooting.

Describes how to di spla y e xte rnal video images or analog RGB imagines on NS-series PTs using a NS-series RGB and Video Input Unit, including the followi ng information.

• Features, system configuration, and specifications

• Functions, setting methods, and adjustment methods

Describes the Smart Active Parts (SAP) functionality and the settings required to use the SAP library. This document does not describe application restrictions for specific Units or Components or restrictions in comb ina t io ns. Always ref er to th e operation manual for the products involved before using the SAP library.

■ Support Software Manuals

Name Cat. No. Contents

CX-One CXONE-AL@@C-E Setup Manual

CX-Integrator CXONE-AL@@C-E Operation Manual

CX-Programmer Ver. 6.1 WS02-CXPC1-E-V60 Operation Manual

CX-Programmer Ver. 6.1 WS02-CXPC1-E-V60 CS1G-CPU@@H CS1H-CPU@@H CJ1G-CPU@@H CJ1H-CPU@@H CJ1M-CPU@@ CP1H-X@@@@-@ CP1H-XA@@@@-@ Operation Manual: Function Blocks

SYSMAC CX-Designer Ver. 1.0 NS-CXDC1-V1 Operation Manual

NS-Series NS5-SQ0@(B)-V1/V2 NS5-TQ0@(B)-V2 NS5-MQ0@(B)-V2 NS8-TV@@(B)-V1/V2 NS10-TV0@(B)-V1/V2 NS12-TS0@(B)-V1/V2 NSJ5-TQ@@(B)-G5D NSJ5-SQ@@(B)-G5D NSJ8-TV@@(B)-G5D NSJ10-TV@@(B)-G5D NSJ12-TS@@(B)-G5D Ladder Monitor Operation Manual (Ladder Monitor/I/O Comment Extracting Tool)

W444 (PDF only)

W445 Describes CX-Integrator operating methods, e.g.,

W446 Describes CX-Programmer operations except

W447 Describes function blocks for CS/CJ-series CPU

V088 Describes how to inst all and us e the CX-De signer,

V082 Describes the NS-series PT monitoring function

Describes installa tion and pro vid es an ov erview of the CX-One FA Integrated Tool Package.

for setting up and monitoring networks.

those related to function blocks.

Units unit version 3.0 or later and CP-series CPU Units, and CX-Programmer operations related to function blocks.

Refer to the W447 manual above for other CXProgrammer operations.

including screen data creation methods, screen data transfer methods, and system settings.

for CS/CJ-series PLC ladder programs, including the following information.

• Overview and features

• Setup methods

• Basic operations

• Troubleshooting

xvi

Conventions Used in Th is Manual

Meanings of Abbreviations

The following abbreviations are used in parameter names, figures and in text explanations. These abbreviations mean the following:

Symbol Term

TC4/TC2 Four-channel and Two-channel Basic Units CH Channel HFU Advanced Unit EDU End Unit PV Process value SP Set point HB Heater burnout HS Heater short GT Gradient tuning GTC Gradient temperature control OC Heater overcurrent AT Autotuning EU Engineering unit (See note 1.) Expand Unit Expansion Unit (See note 2.)

Note: (1) “EU” stands for Engineering Unit. EU is use d as the minimum unit for engineer ing units suc h as

m, and g. The size of EU varies according to the input type. For example, when the input temperature setting range is –200 to +1300 the input temperature setting range is –20.0 to +500.0 For analog inputs, the size of EU varies according to the decimal point position of the scaling setting, and 1 EU becomes the minimum scaling unit.

(2) "Ex pand Unit" in parameter and status names that appear in this manual mea ns "Expansion Unit,"

which is a Unit, such as the G3ZA Multi-channel Power Controller, connected to a Basic Unit.

°C, 1 EU is 0.1°C.

°C, 1 EU i s 1 °C, and whe n

°C,

xvii

xviii

TABLE OF CONTENTS

SECTION 1

Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1 Names of Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 I/O Configuration and Main Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-3 Internal Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SECTION 2

Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2-1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2-2 Wiring Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2-3 Using Tool Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2-4 Unit Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

SECTION 3

Gradient Temperature Control Setup . . . . . . . . . . . . . . . . . 33

3-1 Setup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3-2 Adjusting Gradient Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3-3 Changing SPs During Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

SECTION 4

Basic Units (TC4 and TC2) Functions . . . . . . . . . . . . . . . . . 49

4-1 Setting Input Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

4-2 Setting Output Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

4-3 Setting Control Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

4-4 Detecting Current Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

4-5 Other Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

SECTION 5

Advanced Unit (HFU) Functions. . . . . . . . . . . . . . . . . . . . . . 61

5-1 Setting Input Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

5-2 Setting Output Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

5-3 Setting Control Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

5-4 Setting Alarm Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

5-5 Detecting Current Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

5-6 Programless Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

5-7 Other HFU Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

xix

TABLE OF CONTENTS

SECTION 6

Communications (CompoWay/F) . . . . . . . . . . . . . . . . . . . . . 125

6-1 Communications Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126

6-2 Frame Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

6-3 FINS-mini Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

6-4 Detailed Description of Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

SECTION 7

Errors and Error Processing . . . . . . . . . . . . . . . . . . . . . . . . . 147

7-1 Things to Check First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

7-2 Determining Errors from Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

7-3 Determining the Error from the Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

7-4 Determining the Error from the Current Situation for Communications Errors . . . . . . . . . . 158

7-5 Determining the Error from the Current Situation for Temperature Measurement Errors . . 163

7-6 Determining the Error from the Current Situation for Temperature Control Errors . . . . . . . 164

7-7 Determining the Error from the Current Situation for Output Errors . . . . . . . . . . . . . . . . . . 166

7-8 Determining the Error from the Current Situation for Heater Burnout Alarm Errors. . . . . . 167

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

About this Manual:

This manual describes the EJ1G Modular Temperature Controllers and includes the sections described below.

Please read this manual carefully and be sure you understand the information provided before attempting to set up or operate an EJ1G Modular Temperature Controller.

•Overview

Section 1 Outline describes the features, nomenclature, and functions of the EJ1G.

•Setup

Section 2 Preparations describes the preparations requ ired to use the EJ1G, includi ng installation, wiring, and switch settings.

•Gradient Temperature Control Setup

Section 3 Gradient Temperature Control Setup describes how to set up and adjust gradient temperature control and how to change the SPs during operation.

•Functions of EJ1G Basic Units (TC4/TC2)

Section 4 Basic Units (TC4/TC2) describes the functions of EJ1G Basic Units.

•Functions of EJ1G Advanced Unit (HFU)

Section 5 Advanced Unit (HFU) Functions describes the functions of EJ1G Advanced Unit.

•Operation Using Communications

Section 6 Communications (CompoWay/F) descr ibes how to use communications based on communications commands.

•Troubleshooting

Section 7 Troubleshooting describes met hods for checking possible problems in operati on depending on classifications of Temperature Controller status.

•Specifications and Parameter Lists

Appendix provides specifications, parameter lists, status lists, and other reference information.

!WARNING Failure to read and under stand the informati on provided i n this ma nual may result in p er-

sonal injury or death, damage to the product, or product failure. Please read each sec ti on in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.

xxi

xxii

This section describes the features, nomenclature, and functions of the EJ1G.

1-1 Names of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-1 Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-2 Names of Parts on Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-3 Meanings of Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-4 Using Setting Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1-2 I/O Configuration and Main Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-2-1 I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-2-3 Main Unit Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-2-4 Model Number Legend. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1-3 Internal Block Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SECTION 1

Outline

Names of Parts Section 1-1

1-1 Names of Parts

1-1-1 Appearance

Slider

Front panel

Terminal block

TC4, TC2, or HFU Screw Terminals

1-1-2 Names of Parts on Front Panel

Operation Indicators

PWR RUN ERR ALM

SW1

SW2

TC4, TC2, or HFU EDU

Operation Indicators

COM1 COM2 COM3

1-1-3 Meanings of Indicators

TC4, TC2, or HFU Screw-Less Clamp Terminals

EDU

Port A connector

Operation Indicators

TC4 and TC2

Name Color Meaning

PWR Green Lights when the power is ON. ERR Red Flashes or lights when an error occurs. ALM Red Lights when an alarm is activated. COM1 Orange Flashes during communications via port A on the End Unit. COM2 Orange Flashes when the EJ1G system is in operation. COM3 Orange Flashes during communications with the G3ZA.

Names of Parts Section 1-1

HFU

Name Color Meaning

PWR Green Lights when the power is ON. (See note.) RUN Green Lights during operation. ERR Red Flashes or lights when an error occurs. ALM Red Lights when an alarm is activated. COM1 Orange Flashes during communications via port A on the End Unit. COM2 Orange Flashes when the EJ1G system is in operation. COM3 Orange Flashes during communications via port C.

Note Some time is required for the indicators to light after the power is turned ON.

1-1-4 Using Setting Switches

• Check that the EJ1G is turne d OFF before opera ting the switches. The settings are enabled when the power is turned ON.

• Set the switches with a small flat-blade screwdriver. Do not set the switches midway between settings.

Setting the Unit Number

Unit Number Settings

SW2 SW1

120123456789ABCDEF

OFF OFF 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15

ONOFF16171819202122232425262728293031

SW1 and SW2 are used toge ther to set the unit number to between 00 and

31. Note The factory setting is unit number 01.

SW1 SW2

1 2 3 4 5 6 7 8

Names of Parts Section 1-1

Setting Switch 2 (SW2) Settings

EJ1G-TC Basic Units

SW2 Meaning

2 to 6 Not used (OFF) 7 ON: G3ZA Multi-channel Power Controller in operation 8 Use when an HFU is used and Units are distributed. (See note.)

Note To us e a n HF U with d is tr ibuted po si ti oni ng, t urn ON pin number 8 on SW 2 o n

the TC Unit connected at the left end of the Block. Refer to SECTION 2 Preparations for information on wiring.

EJ1G-HFU (Advanced Unit)

HFU

TC4/2

SW2 Meaning

2 to 7 Not used (OFF) 8•EJ1G-HFU@-NFLK

EDU

TC4/2

Turn ON pin 8 on SW2.

OFF: RS-485 is selected. ON: RS-232C is selected.

•EJ1G-HFU@-NFL2 Not used (O FF).

TC4/2

EDU

TC4/2

Turn ON pin 8 on SW2.

TC4/2

EDU

I/O Configuration and Main Functions Section 1-2

1-2 I/O Configuration and Main Functions

1-2-1 I/O Configuration

TC4: Four-channel Basic Unit

Main input 1 Main input 2 Main input 3 Main input 4

Control

section

Control output 1 Control output 2 Control output 3

Control output 4

G3ZA communications

TC2: Two-channel Basic Unit

HFU (Advanced Unit)

Port A communications Port B communications

Inside the device

Internal bus 1 Internal bus 2 Internal bus 3

• Internal device I/O are connected via a connector to the adjacent Unit.

Main input 1 Main input 2

CT input 1

CT input 2

Port A communications Port B communications

Inside the device

Control

section

Control output 1 Control output 2 Control output 3

Control output 4

G3ZA communications

Internal bus 1 Internal bus 2 Internal bus 3

• Internal device I/O are connected via a connector to the adjacent Unit.

Event input 1 Event input 2

Event input 3 Event input 4

Control

section

Auxiliary output 1

Auxiliary output 2

Auxiliary output 3 Auxiliary output 4

Port C communications Port A communications

Port B communications

Inside the device

Internal bus 1 Internal bus 2 Internal bus 3

• Internal device I/O are connected via a connector to the adjacent Unit.

I/O Configuration and Main Functions Section 1-2

EDU: End Unit

Adjacent Unit

Port A communications

Port B communications

Auxiliary output 1 (See note.) Auxiliary output 2 (See note.)

Note Auxiliary outputs are output via an internal bus.

1-2-2 What Is Gradient Temperature Control?

Gradient temperature control is a control method that achieves a uniform temperature or preset temperature profile over a 2D surface. An example application would be multi-point control of surface temperature using multiple heaters. The gradient temperature control algorithm directly controls the average temperature of all point s as well as the temperature difference between each pair of points. The algorithm also includes methods to eliminate the interference of each control output on the other control points.

Suppresses interference of

Gradient T emper ature Control

control outputs on other points.

Controls average temperature.

When temperature inputs are received, the average temperature of all poi nts and the temperature differences be tween each pair of points are ca lculated. PID control is performed for the present value (PV) of eac h of these control points.

In addition, PID o utput values are distributed to prevent them from affecting PID control performance at other poin ts, thus eliminating interference. This means that the inte rference of heaters on other control points is reduced to enable uniform in-plane temperature control.

1-2-3 Main Unit Functions

Basic Units (TC4 and TC2)

• Basic Units are used as the control I/O devices. (The HFU performs control processing.)

• There are two models of Basic Unit: The TC4 with four I/O channels an d the TC2 with two I/O channels.

• Universal input supports a ther m ocoupl e, platinum resis tance thermometer, or analog input.

• The type of input can be set separately for each channel.

• Control outputs are pulse voltage outputs.

Controls temperature differences.

I/O Configuration and Main Functions Section 1-2

• Terminal blocks can be detached and attached. Both screw terminals and screw-less clamp terminals are available.

• Connect a current transformer (CT) to use t he heater burno ut and heater overcurre nt alarms (TC2 Units only).

• Up to eight G3ZA Multi-cha nnel Power Controlle rs can be connected to one Basic Unit.

Advanced Unit (HFU) • The HFU performs gradient temperat ure control or 2-PID con trol (set for

each group).

• Gradient temperature control can be performed for from 2 to 32 channels. (2-PID control can also be set by group for from 2 to 32 channels.)

• Two-channel gradient temperature control can be performed for up to 16 groups (when TC4 and TC2 U nits are used) or 3 2-channel gradient temperature control can be performed for up to 2 groups (when TC4 Units are

used).

• Up to sixteen Basic Units can be connected to one HFU.

• Data can be exchanged between the EJ1G and PLCs using programless communications.

• Up to 300 data items can be re ad from a PLC to the EJ 1G and u p to 300 data items can be written from the EJ1G to a PLC.

• OMRON CS/CJ-series PLCs and Mitsubishi Q/QnAS-series PLCs can be connected.

End Unit (EDU) • The End Unit supplies power to connected Basic Units and HFUs.

• An End Unit is always required when using the EJ1G.

• A total of up to 16 HFUs and Basic Units can be conn ected to one End Unit.

• Port A is split into both a connector and a terminal block. The connector is used with the Suppor t Software and the ter minal block is used for EJ1G distributed placement. (Port B is also used for distributed placement.)

• When using port A, be sure to consider the write life of the EEPROM.

1-2-4 Model Number Legend

TC4 and TC2

Options

Outputs

Terminal type

Unit name

Type Gradient Temperature Control

None

H B Q N A B T C 4 T C 2 G

2 CT inputs 2 event inputs 2 pulse voltage outputs

2 transistor outputs

Screw terminals Screw-less clamp terminals

Four-channel Temperature Control Unit Two-channel Temperature Control Unit

1 2 3 4 5 6 7 8 9 10 11 12 13 14

G - T C 4 A Q Q1JE G - T C 4 B Q Q1JE G - T C 2 A Q N H B1JE G - T C 2 B Q N H B1JE -

I/O Configuration and Main Functions Section 1-2

HFU

Communications

Outputs Terminal

type

Unit name Type

EDU

Communications Outputs 2 transistor outputs

Terminal type Unit name

Type

FLK FL2 N A B HFU G

FLK N A

EDU

CompoWay/F (RS-485/RS-232C) CompoWay/F (RS-422) 4 transistor outputs Screw terminals Screw-less clamp terminals Advanced Unit

Gradient Temperature Control

CompoWay/F

Screw terminals End Unit Common model

1 2 3 4 5 6 7 8 9 10 11 12 13 14

G - H F U A N F1JE G - H F U A N F1JE G - H F U B N F L K1JE G - H F U B N F L 2

1JE -

LK L2

1 2 3 4 5 6 7 8 9 10 11 12 13 14

C - E D U A N F L K1JE -

Internal Block Diagrams Section 1-3

1-3 Internal Block Diagrams

TC4

Main input 1

Main input 2

Main input 3

Main input 4

TC2

Temperature/analog input circuit

Waveform shaping circuit

Connector between Units

Switch inputs

Port A communications circuit

Switch inputs

Indicators

Microcomputer

Port B communications circuit

Internal buses 1 to 3

24 VDC

Indicators

EEPROM

G3ZA communications circuit

EEPROM

Drive circuit

Pulse voltage outputs

G3ZA communications

Connector between Units

Control output 1

Control output 2

Control output 3

Control output 4

Main input 1

Main input 2

CT input 1

CT input 2

Temperature/analog input circuit

CT input circuit

Waveform shaping circuit

Connector between Units

Port A communications circuit

Microcomputer

Port B communications circuit

Internal buses 1 to 3

24 VDC

G3ZA communications circuit

Drive circuit

Pulse voltage outputs

Transistor outputs

G3ZA communications

Connector between Units

Control output 1

Control output 2

Control output 3

Control output 4

Internal Block Diagrams Section 1-3

HFU

Event input 1

Event input 2

Event input 3

Event input 4

EDU

Event input circuit

Waveform shaping circuit

SRAM

Connector between Units

Switch inputs

Port A communications circuit

Indicators

Microcomputer

Port B communications circuit

Internal buses 1 to 3

24 VDC

EEPROM

Drive circuit

Port C communications circuit

Transistor outputs

RS-485/RS-232C communications between devices

Connector between Units

Auxiliary output 1

Auxiliary output 2

Auxiliary output

Auxiliary output 4

Connector between Units

TTL conversion circuit

Internal bus 1

Internal bus 2

24 VDC

Drive circuit

Port A connector

Port A communications

Port B communications

Transistor outputs

Input power supply 24 VDC

Auxiliary output 1

Auxiliary output 2

: Functional isolation

SECTION 2

Preparations

This section describes the preparations required to use the EJ1G, including install a tion, wiring, and switch settings.

2-1 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2-1-1 Dimensions (Unit: mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2-1-2 Mounting and Removing Terminal Blocks. . . . . . . . . . . . . . . . . . . . 13

2-2 Wiring Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2-2-1 Terminal Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2-2-2 Wiring Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2-2-3 Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2-3 Using Tool Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2-3-1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2-4 Unit Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2-4-1 Connection Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Installation Section 2-1

2-1 Installation

2-1-1 Dimensions (Unit: mm)

TC4, TC2, and HFU

Models with Screw Terminals: 109

95.4

Models with Screw-less Clamp Terminals: 104.85

Models with Screw Terminals

EDU

Models with Screw-less Clamp Terminals

15.7

95.4

76.2 60

Installation Section 2-1

2-1-2 Mounting and Removing Terminal Blocks

Connecting Units

1,2,3... 1. Align the connectors and connect the Units to each other.

Note Connect the EDU on the right end of the EJ1G and the HFU on the left end.

2. Slide the yellow sliders on the to p and bott om of the U nits until they click into place.

Slider Lock

3. Attach the cover seal to the connector on the Uni t on the left end of the EJ1G.

Cover seal

Installation Section 2-1

Mounting to DIN Rail • Mount the EJ1G to DIN Rail.

• Use screws to secure the DIN Rail in at least 3 locations.

DIN Rail: PFP-50N (50 cm) or PFP-100N (100 cm)

• Install the DIN Rail vertically to the ground.

Vertical: OK

Horizontal: NG

Installation Method Pull down the hooks on the bottoms of the Units, and then catch the hooks on

the tops of the Un its onto th e DIN Rail and pr ess the U nits onto the DIN Rail until they lock into place.

2. Catch the upper hooks onto the DIN Rail.

3. Press in on the Units.

1. Pull down the hooks.

4. Make sure the Units are locked into place.

Removal Method Pull down on the hooks with a flat-blade screwdriver and lift up on the Units.

Flat-blade screwdriver (unit: mm)

Flat-blade screwdriver

0. 4

2. 5

Installation Section 2-1

End Plate Installation Always mount an End Plate on each side of the EJ1G.

PFP-M End Plates (2)

Removing Terminal Blocks

1,2,3... 1. Pull down the terminal block lever.

Pull down the lever.

2. Pull off the terminal block.

PFP-M

Pull off the terminal block.

Note M3 screw and screw-less terminal blocks cannot be exchanged. U se the typ e

of terminal block supplied with the TC Unit.

Wiring Terminals Section 2-2

2-2 Wiring Terminals

2-2-1 Ter minal Arrangement

TC4

Pulse voltage outputs

OUT2

OUT1

−

Analog inputs

Platinum resistance thermometer inputs

• Terminals A10 and B10 are not used on models with screw-less clamp terminals. Do not connect anything to these terminals.

• A G3ZA connector is located on the bottom of the Unit.

• When wiring voltage inputs, be sure to wire the correct terminals. Incorrect wiring

may cause the EJ1G to fail.

12 VDC

CH2

CH1

Thermocouple inputs Infrared thermosensor

−

12 VDC

−

CH4

−

CH3

−

OUT4

OUT3

−

Wiring Terminals Section 2-2

TC2

Pulse voltage outputs

OUT2

OUT1

−

Analog inputs Platinum

resistance thermometer inputs

• Terminals A10 and B10 are not used on models with screw-less clamp terminals. Do not connect anything to these terminals.

• A G3ZA connector is located on the bottom of the Unit.

• When wiring voltage inputs, be sure to wire the correct terminals. Incorrect wiring

may cause the EJ1G to fail.

DC12V

−

CH2

−

CH1

−

Thermocouple inputs Infrared thermosensors

COM

OUT4

OUT3

DO NOT USE

CT2

CT1

HFU

Port C

SUB4

SUB3

SUB2

SUB1

RDB (+)

RDA (−)

RS-422 RS-485

B (+)

A (−)

DO NOT USE

COM

EV4

EV3

EV2

EV1

Contact input

RS-232C RS-422

−

Non-contact input

SDB (+)

SDA (−)

DO NOT USE

• Terminals A10 and B10 are not used on models with screw-less clamp terminals. Do not connect anything to these terminals.

Wiring Terminals Section 2-2

EDU

Port A connector

2-2-2 Wiring Precautions

• Separate input leads and power lines to protect the EJ1G from external noise.

• Use AWG22 (cross-sectional area: 0.326 mm tional area: 2.081 mm (cross-sectional area: 0.081 mm

1.309 mm

• Use crimp terminals when wiring the terminals.

• Tighten the terminal screws to a torque of 0.40 to 0.56 N·m.

• Up to two wires of the same size and same type or two crimp terminals can be inserted into a single terminal.

• Use the following types of crimp terminals for M3 screws.

Port A

SUB2

Port B

Input power supply

) for all other cables. The stripping length is 6 to 8 mm.

B (+)

RS-485

SUB1

B (+)

RS-485

24 VDC

) twisted-pair cable for power supply and AWG28

A (−)

−

These two ports cannot be used at the same time.

COM

) to AWG14 (cross-sec-

) to AWG16 (cross-sectional area:

5.8 mm max.

Wiring Terminals Section 2-2

Wiring Procedure for Screw-Less Clamp Terminals

There are two holes for each ter minal. The h ole on the ri ght is the operating hole; the hole on the left is the wire hole.

Insert a flat-blade s crewdriver with a width of 2.5 mm into the operating hole and then insert the wiring into the wire hole.

B1 B2 B3 B4 B5 B6 B7 B8 B9

B10

A1 A2 A3 A4 A5 A6 A7 A8

The wire will be clamped when the screwdriver is removed.

Use crimp ter minals for wiring that matc h the cross-sectio nal area of the wiring material.

We recommend the following crimp terminals: Weidmuller H-sleeve Series

2-2-3 Wiring

Power Supply Voltage Connect the power supply to EDU terminals 8 and 9 as shown below.

1 2 3 4 5 6 7

8 9

EDU

24-VDC input power supply

−

• If reinforced insulation is required, c onnec t the input an d output terminals to a device without any exposed current-carrying parts or to a device with standard insulation suitable for the maximum operating voltage of the power supply I/O section.

• Conforming to Safety Standards The power supply terminals must be supplied from a SELV, limited-current source. A SELV (separated extra-low voltage) source is a power supply having double or reinforced insulatio n between the prima ry and the secondary circu its and h aving an output voltage of 30 V r.m.s. max. and 42.4 V peak max. or 60 VDC max. Recommended power supply : S8VM Se ries or S8VS Se ries (both manufactured by OMRON)

Note Select a power supply that suits the operating environment.

• To comply with the st andards for nois e ter minal voltage for class A i n EN 61326, install a noise fil ter (Densei Lamb da MXB-1206-3 3 or the equivalent) to the DC line as close as possible to the EJ1G.

Wiring Terminals Section 2-2

Inputs Connect inputs according to the input type as shown below.

B1 B2 B3

B4 B5 B6 B7 B8 B9

B1 B2 B3

B4 B5 B6 B7 B8 B9

TC4

TC2

A1 A2 A3

A4 A5 A6 A7 A8 A9

A1 A2 A3

A4 A5 A6 A7 A8 A9

CH2

CH1

Thermocouple inputs Infrared thermosensor

TC2

−

TC4

−

CH4

−

CH3

TC4

TC2

CH2

CH1

Platinum resistance thermometer inputs

CH4

CH3

CH2

CH1

TC2

−

Analog inputs

TC4

−

CH4

−

CH3

Control Outputs Terminals B1 to B3 and A1 to A3 on the TC4/TC2 are for control outputs.

B2 B3

B4 B5 B6 B7 B8 B9

B1 B2 B3

B4 B5 B6 B7 B8 B9

TC4

TC2

A2 A3

A4 A5 A6 A7 A8 A9

A1 A2 A3

A4 A5 A6 A7 A8 A9

OUT2 12 VDC

OUT1

OUT2 12 VDC

OUT1

12 VDC

−

12 VDC

−

TC4

TC2

12 VDC

−

COM

OUT412 VDC

OUT3

OUT4

OUT3

Output type Specifications

Pulse voltage outputs

Transistor outputs

Output voltage: 12 VDC ±15% (PNP) Max. load current: 21 mA, with short circuit protection circuit. Max. applicable voltage: 30 VDC Max. load current: 100 mA Residual voltage: 1.5 V max., Leakage current: 0.4 mA max.

Wiring Terminals Section 2-2

Auxiliary Outputs Auxiliary outputs are sent from pins B1 to B6 with the HFU, and from pins 3 to

5 with the EDU.

B5 B6

B7 B8 B9

HFU

1 2

3 4 5

6 7 8 9

EDU

A5 A6 A7 A8 A9

SUB4

SUB2

SUB3

SUB1

HFU

COM

SUB2

SUB1

COM

EDU

Output type Specifications

Transistor outputs

Max. operating voltage: 30 VDC Max. load current: 50 mA Residual voltage: 1.5 V max., leakage current: 0.4 mA max.

CT Inputs When the heater burnout (HB ) or heater sh or t (HS) ala rm is to be used, con-

nect a Current Transform er (CT) across t er minals A8 and A9 o r ter mina ls A7 and A9 (no polarity) on the TC2.

TC2

• Use a E54-CT1 or E54-CT3 Current Transformer.

CT2

CT1

Wiring Terminals Section 2-2

Event Inputs Connect event inputs across terminals A4 and A6 for the HFU.

B3 B4 B5 B6 B7 B8 B9

HFU

A3 A4 A5 A6

A7 A8 A9

EV4

EV3

EV2

EV1

−

EV4

EV3

EV2

EV1

Contact inputs

Non-contact inputs

• The inflow current is approximately 4 mA.

• Use event inputs under the following conditions:

Contact inputs ON: 1 kΩ max., OFF: 100 kΩ min. Non-contact

inputs

ON: Residual voltage: 1.5 V max., OFF: Leakage current: 0.1 mA max.

Communications • For communications with the host, connect communications across termi-

nals B7 and B8 or ter minals A7 to A9 on the HFU or connect ac ross terminals 1 and 2 on the EDU.

HFU

1 2

3 4 5 6 7 8 9

EDU EDU

RDB (+)

RDA (−)

B (+)

A (−)

B (+)

A (−)

Port A communications

RS-485 RS-232C

Port C communications

RS-485

HFU

SDB (+)

SDA (−)

DO NOT USE

RS-422RS-422

Note • If there are problems with communications noise performance when using

the port A connector, connect 110 to 125

Ω of terminating resistance

across terminals 1 and 2 of port A on the EDU.

• Specify both ends of the transmission pa th, including the hos t computer, as end nodes (i.e., connect term inat or s to both end) . The min imum terminating resistance is 54

Ω.

Wiring Terminals Section 2-2

■ Connection Example

Host Shield

EJ1G EDU

• The RS-485 connection can be either 1:1 or 1:N. RS-232C connections can only be 1:1. A maximum of 32 Units (includ ing the ho st) can be connected in 1:N systems. The maximum total cable length is 500 m. Use

AWG28 (cross-sectional area: 0.081 mm area: 1.309 mm

−

B (+)

A (−)

B (+)

A (−)

) shielded twisted-pair cable.

RS-485

Terminator 110 to 125 Ω (1/2 W)

) to AWG16 (cross-sectional

Cross-sectional area of conducto AWG28: 0.081 mm2 AWG16: 1.309 mm

Wiring Terminals Section 2-2

Connecting to the G3ZA Multi-channel Power Controller

CN1

Connect the G3ZA Connecting Cable to the CN1 connector on the bottom of the TC Unit.

1 2

B (+) A (−)

READY SD/RD

SW1

OCC

SW2

ERROR

Set SW2 to 3 (57.6 kbps).

Connect the black line with a white stripe to terminal 7 on the G3ZA and the black line with no stripe to terminal 8.

EJ1C-CBLA050 (order separately) (cable length: 5 m)

Use a JST Mfg. Co. Ltd. PA connector.

Housings

Model: PAP-02V-S

Crimp Terminals

Model: SPHD-001T-P0.5

Use an EJ1C-CBLA050 Cable (manufactured by OMRON).

TC4/TC2

Using Tool Ports Section 2-3

2-3 Using Tool Ports

Tool ports are used to make EJ1G settings using the EST2-2C-MV3 CXThermo Support Software.

The E58-CIFQ1 USB-Seri al Conversion Cable is required t o make the connection.

2-3-1 Procedure

1,2,3... 1. Turn ON the power supply to the EJ1G.

Note Do not connect the E58-CIFQ1 while the power supply to the EJ1G

is OFF. If the Ca ble is connected when the power to the EJ 1G is OFF, power will be supplie d from the co mputer and im pose a loa d on the internal circuits of the EJ1G.

2. Connect the Cable. Connect the computer's US B port with the port A conne ctor on the EJ 1G using the Cable.

Port A connector

E58-CIFQ1

Computer

EDU Front Vie

3. Install the driver. A driver must be installed to use the Cable.

• When the Cable is connecte d with th e com puter, the OS will detect a new device. Follow the installation wizard instructions and install the driver.

Note For details on instal lation methods, refer to the user's manual for

the E58-CIFQ1 USB-Serial Conversion Cable.

4. Make the communications port settings. The USB-Serial Conversion Cable is used to commun icate with th e COM port of the computer. Set the communicatio ns port (COM por t) number to be u sed for the CXThermo software to the COM port assigned to the Cable.

Unit Configuration Examples Section 2-4

2-4 Unit Configuration Examples

EJ1G-HFU

EJ1G-TC4

EJ1G-TC2

G3ZAG3ZA G3ZA

EJ1C-EDU

PLC

Port A (connector): USB connection can be made using the E58-CIFQ1 (sold separately).

Port B is used for distributed placement.

CX-Thermo for setting

Unit Configuration Examples Section 2-4

2-4-1 Connection Precautions

Restrictions on the Number of Units that Can Be Connected

• Unit numbers 0 to 31 can be used for EJ1G-HFU and EJ1G-TC4/TC2 Units.

• Up to 16 Units, including the HFU, can be connected side by side. (EDU Units are not counted in the number of Units that can be connected.)

Precautions When Using an HFU

Note When using distributed positioning, turn ON power to the distributed Units first

• One HFU can control up to 16 TC4/TC2 Units.

• The unit numbers of the TC4/TC2 Units can be set to between 0 and 31.

• To c onnect 16 TC4/TC2 Un its, Communications Cables must be us ed to distribute Unit positioning because the maximum number of Units that can be connected horizontally will be exceeded.

• When using Communicatio ns Cables to dis tribute TC 4/TC2 Un it positi oning, connect the cables to port B on the End Units.

• If distributed positioning is used for an EJ1G, power must be supplied separately to the terminal block on the End Units.

or turn ON power to the HFU and distributed Units simultaneously. Even if this is done, there may still be problems wi th the s tar tup timi ng depend ing on th e EJ1G configuration and power supply capacity. If problems occur at star tup, increase the delay between turning ON the power to t he d istributed Units and the HFU.

One HFU can manage up to 16 TC Units (4 channels × 16 Units = 64 channels) EDU Units are not included in the number of Units that can be managed.

Turn ON pin 8 on SW2.

EJ1G-HFU

Up to 16 Units can be connected side by side. EDU Units are not counted in the number of Units that can be connected.

EJ1G-TC4 or EJ1G-TC2

EJ1C-EDU

EJ1G-TC4 or EJ1G-TC2

EJ1C-EDU

Unit Configuration Examples Section 2-4

Maximum Number of Connectable Units

The maximum number of Units that can be connec ted is some times limited to 16 or less, depending on the maximum number of channels per group and the types of Basic Unit used. Refer to the following table for information on the

maximum number of connectable Units.

Maximum

number of

channels per

group

2 161616 8 3 10151612 4 8 16 16 16 5 615810 6 515812 7 414814 8 4 16 8 16

931449 10315410 11211411 12212412 13213413 14214414 15215415 16 2 16 4 16 171929 181929 19110210 20110210 21111211 22111211 23112212 24112212 25113213 26113213 27114214 28114214 29115215 30115215 31116216 32 1 16 2 16

Maximum

number of

groups

TC2 TC4

Maximum

number of

connectable

Units

Maximum

number of

groups

Maximum

number of

connectable

Units

Example: Performing 6-channel Gradient Temperature Control with TC2 Units The maximum number of gro ups i s 5, and th e m ax imum numbe r of Uni ts tha t

can be connected is 15.

Unit Configuration Examples Section 2-4

Wiring for Distributed Placement

Group A

1 2 3 4 5 6 7 8 9

Terminator

110 to 125 Ω

(1/2 W)

−

Terminator

110 to 125 Ω

(1/2 W)

24 VDC

−

Note Wire the connections indicated with dotted lines when setti ngs for all EJ 1G

Connecting the G3ZA and EJ1G

Note Either turn ON power to the G3ZA first, or turn O N power to the G3ZA and

Group B

1 2 3 4 5 6 7 8 9

Terminator

110 to 125 Ω

(1/2W)

−

Terminator

110 to 125 Ω (1/2 W)

24 VDC

−

RS-485

Controllers are being made from one port A connector. If the connections indicated with dotted li nes are not wired, the setti ngs for group A can be made only using the por t A connector for group A and the settings for group B can be made only using the port A connector for group B.

• Up to 8 G3ZA Power Controllers can be connected to one TC4/TC2 Unit.

EJ1G simultaneously.

Unit Configuration Examples Section 2-4

Restrictions on Connections and Placement

EJ1G-TC4 or EJ1G-TC2

EJ1C-EDU

G3ZA

Up to 8 G3ZA Power Controllers can be connected to one TC Unit.

• Always connect the HFU on the left side of the TC4/TC2 Units.

CorrectIncorrect

EJ1G-TC4 or EJ1G-TC2

EJ1G-HFU EJ1G-TC4

EJ1G-HFU

or EJ1G-TC2

Unit Configuration Examples Section 2-4

• Do not connect an E DU d irec tly t o a n HFU. Always connect th e EDU to a TC4/TC2.

Incorrect

EJ1G-HFU

EJ1C-EDU

Correct

EJ1G-HFU

EJ1G-TC4 or EJ1G-TC2

EJ1C-EDU

Unit Configuration Examples Section 2-4

SECTION 3

Gradient Temperature Control Setup

This section describes how to set up and adjust gradient temperature control and how to change the SPs during operation.

3-1 Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3-2 Adjusting Gradient Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3-3 Changing SPs During Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Setup Procedure Section 3-1

(

)

3-1 Setup Procedure

Use the following procedure to perform gradient temperature control.

1. Select the models.

2. Set the Communications unit num bers.

3. Make the I/O settings.

4. Make the gradient group settings.

5. Arrange the Sensors.

6. Register the configuration.

7. Set decimal point position B.

8. Make the SP and alarm settings.

9. Perform tuning for gradient temperature control.

10. Start control.

11. Perform tuning for 2-PID control.

12. Check the heater burnout alarm status.

Example: Performing 3-channel Gradient Temperature Control

• Gradient temperature control is performed for 3 groups.

• Also, 2-PID control is performed for three chan nels in addition to gradien t temperature control.

• Heater burnout is detected for all channels.

Upper heater

(2-PID control)

Lower heater

Gradient temperature control performed for three heaters

1. Select the models. TC2 Basic Units are used because heater burnout detection is performed.

• Select TC2 Units to detect heater burnout.

• Select TC4 Units when not detecting heater burnout. Note A mixture of TC2 and TC4 Units can be used. Here, a total of 12 channels are required, so 6 TC2 Units are needed.

6 Units (x TC2 = 12 channels)

Setup Procedure Section 3-1

Three-channel gradient contr ol for 3 groups + 3 chan nels of PID control = 12 channels

2. Set the Communications Unit numbers. Set the Communications unit numbers as shown below.

0 1 2 3 4 5 6

Note (a) The Communications unit numbers can be set between 0 and 31.

Set a number in this range.

(b) When connecting to an OMRON PLC, set the HFU unit number

to between 0 and 7.

3. Make the I/O settings. The I/O settings are made for each Basic Unit.

0 1 2 3 4 5 6

Set the I/O for each Basic Unit.

Communications Unit No.

The following table shows the input type and control per iod for each TC2 Unit in this example.

Parameter Communications Unit No.

Variable type Address Name 1 2 3 4 5 6

E0 (A0) 0100 Input Type - CH1 5 (K: −200 to 1300°C)

0200 Input Type - CH2 5 (K: −200 to 1300°C)

E1 (A1) 0101 Control Period 1 2 s

0201 Control Period 2 2 s

4. Make the gradient group settings. The gradient group settings are made on the HFU.

0 1 2 3 4 5 6

Setup Procedure Section 3-1

)

The heaters are first divided into groups and it is decided whether e ach group will use gradient temperature control or 2-PID control. In this example, there are three groups of gradient temperature control for three channels and one group of 2-PID control for three channels. The groups are divided as shown in the following diagram.

0 1 2 3 4 5 6

TC2

TC2 TC2 TC2 TC2 TC2

CH1

CH1 CH1 CH1 CH1

CH2 CH2 CH2 CH2 CH2

CH2

E D U

Group 1 (gradient)

Grou

2 (gradient

Group 3 (gradient)

Grou

4 (2-PID

The group settings are made with the following parameters.

Parameter Description

Number of Enabled Groups

Initial Communications Unit No.

Initial Channel Sets the initial channel for the initial communications unit

Number of Enabled Channels

Control Type Sets whether the g r ou p w ill p erform gradient temperature

Sets the total number of groups, consisting of those performing gradient temperature control and those performing 2-PID control.

Sets the communications unit number for the group’s initial channel.

number. Sets the number of channels performing gradient temper-

ature control or 2-PID control.

control or 2-PID control.

Note (a) When the group settin gs are changed after temperature control

has been performed, the control-related parame ters are not initialized. To redo the group settings after co ntrol has been performed, be sure to initialize the setting parameters before changing the group settings.

(b) The control operation cycle will get longer if there are a lot of

channels or groups performing gradient temperature control, which may affect control performance. Refer to Characteristics on page 171 for details.

Setup Procedure Section 3-1

The following table shows the group settings for this example.

Variable

type

F1 (B1) 0000 Numbe r of enabled groups 4

Address Parameter Setting value

0100 Group 1 Initial Communica-

tions Unit No. 0101 Initial Channel 0 0102 Number of Enabled

Channels 0103 Control Type 0: Gradient tem-

0200 Group 2 Initial Communica-

tions Unit No. 0201 Initial channel 1 0202 Number of Enabled

Channels 0203 Control type 0: Gradient tem-

0300 Group 3 Initial Communica-

tions Unit No. 0301 Initial Channel 0 0302 Number of Enabled

Channels 0303 Control Type 0: Gradient tem-

0400 Group 4 Initial Communica-

tions Unit No. 0401 Initial Channel 1 0402 Number of Enabled

Channels 0403 Control Type 1: 2-PID control

perature control 2

perature control 4

perature control 5

The HFU handles all of the operations for gradient temperature control and 2-PID control. The maximum number of enabled channels that can be controlled is selected at the HFU from 4, 8, 16, or 32 channels, and that number of channels is allocated for the number of groups used.

In this example, the maximum number of enabled channels is three, so the HFU allocates groups in units of four channels each. The HFU recognizes the following channels for the Basic Unit.

Setup Procedure Section 3-1

)

0 1 2 3 4 5 6

TC2

TC2 TC2 TC2 TC2 TC2

CH1

CH3 CH6 CH9

CH11 CH14

CH2

CH5 CH7

CH10 CH13 CH15

E D U

Group 1 (gradient)

Group 2 (gradient)

HFU channels Groups

11 2 3 4 Not usable 52 6 7 8 Not usable

93 10 11 12 Not usable 13 4 14 15 16 Not usable

Group 3 (gradient)

Grou

4 (2-PID control

Note (a) The HFU can control up to 64 ch annels, but when th e maximum

number of enabled channels is a number other than 4, 8, 16, or 32 channels, non-usable chann els r esult as shown in this example. This limits the number of controllable channels and connectable Units. Refer to Maximum Number of Conne ctable Units on page 28 for details.

(b) If the maximum number of enabled chann els is changed in the

configuration, the numb er of channels allocated for each group and the initial channel for each group may change.

5. Arrange the Sensors. Arrange the sensors sequentially to maximize the control performance

within gradient temperature control groups.

Connection Example with Control Object Heaters in a Line

Good example Bad example

CH1 CH2 CH3 CH4 CH5

CH1 CH3 CH5 CH4 CH2

Setup Procedure Section 3-1

Connection Example with Control Object Heaters in a Plane

Good example Bad example

CH7

CH6 CH1 CH2

CH5

CH4

CH8

CH3

CH9

CH3

CH7 CH9 CH8

CH1

CH4

CH5

CH6

The example used here results in the following sensor arrangement.

0 1 2 3 4 5 6

TC2

TC2 TC2 TC2 TC2 TC2

CH3

CH6 CH9

CH1

F U

CH5 CH7

CH2

Heater block 1 Heater block 2 Heater block 3

CH13 CH14 CH15

CH1 CH2 CH3

CH5 CH6 CH7 CH9 CH10 CH11

Note: The connections for heater blocks 2 and 3 are omitted above.

CH10

CH11 CH14

CH13 CH15

E D U

Always short-circuit the input for any unused channels in the Basic Unit.

6. Register the configuration. The configuration is registered in the HFU.

CH2

0 1 2 3 4 5 6

No configuration is registered when the product is shipped. Always register the configuration. If the correct configuration is not registered or if the configuration is not correctly detected, the Basic Unit channels detected by the HFU may be incorrect.

Use the following procedure to register the configuration. a. Execute the following operation commands.

• Execute the operation command to set all channels to AUTO mode.

• Execute the operation command to set all channels to STOP mode.

b. Reset the EJ1G using one of the following methods.

• Execute a software reset with an operating command to the HFU.

Note All connected Units will be reset when the HFU is reset.

• Cycle the EJ1G power supply.

c. Check the following after restarting.

Setup Procedure Section 3-1

• Read the Configuration Error A Status and check that there are no errors.

• Read the Device B Status and check that bit 12 (Configuration Registered) is OFF.

d. Use the operation com man d t o execute registration of Uni t c on fig ura-

tion.

e. Use the method ou tlined in step b) above to reset the EJ1G syste m

then check the following.

• Read Configuration Error A Status and check that there are no errors.

• Read the Device B Status and check that bit 12 (Configuration Registered) is ON.

• Check that the COM2 indicator is flashing for all Units.

Note Refer to SECTION 7 Errors and Error Processing to determine the

cause of any errors that occ ur dur ing when performing the procedure outlined above.

7. Set decimal point position B. Decimal point position B is set for the HFU.

0 1 2 3 4 5 6

The decimal point pos ition for the PV is set us ing the Decima l Point Position B parameter. Set the same decimal point positi on as was set for the TC2 Unit or TC4 Unit. Decimal point position B must be set because it is u sed as the decimal point position for the SP and alarm values.

In this example, the input type is set to 5 (Thermocouple (K):

−200 to

1,300) so the decimal point position must be set to 0.

Variable type Address Parameter Setting value

E0 (A0) 0000 Decimal Point Position B 0

Note The input type ca n be set separately for each channe l, but if different input

types are set, input type s with the same decimal point position. Temperature control will not be executed correctly if different decim al point input types are used.

8. Make the SP and alarm settings. The SP and alarm settings are made for the HFU.

0 1 2 3 4 5 6

TC2 TC2 TC2 TC2 TC2

TC2

CH3

CH1

CH6 CH9

CH11 CH14

CH2

CH5 CH7

CH10 CH13 CH15

E D U

Setup Procedure Section 3-1

The SP and alar m settings are made for the channels allocated in the group settings. SP and alarm settings made for unusable channels will not be enabled.

The following table shows the Set Point, Alarm Value 1, and Heater Burnout Detection settings for each channel for this example.

Variable

type

D0 (90) 0100 Bank 0 Set Point - CH1 200

Address Parameter Setting

value

0200 Bank 0 Set Point - CH2 200 0300 Bank 0 Set Point - CH3 200

0500 Bank 0 Set Point - CH5 200 0600 Bank 0 Set Point - CH6 200 0700 Bank 0 Set Point - CH7 200

010D Bank 0 Alarm Value - CH1 230 020D Bank 0 Alarm Value - CH2 230 030D Bank 0 Alarm Value - CH3 230

050D Bank 0 Alarm Value - CH5 230 060D Bank 0 Alarm Value - CH6 230 070D Bank 0 Alarm Value - CH7 230

Group 1

Group 2

Group 1

Group 2

D6 (96) 0100 Heater Burnout Detection - CH1 5.0 A

0200 Heater Burnout Detection - CH2 5.0 A 0300

0500 Heater Burnout Detection - CH5 5.0 A 0600 Heater Burnout Detection - CH6 5.0 A 0700

Heater Burnout Detection - CH3 5.0 A

Heater Burnout Detection - CH7 5.0 A

Group 1

Group 2

9. Perform tuning for gradient temperature control. Tuning for gradient temperature control is cal led gradient tu ning ( GT). GT

is executed and stopped for the HFU.

0 1 2 3 4 5 6

TC2 TC2 TC2 TC2 TC2

TC2

CH3

CH1

CH6 CH9

CH11 CH14

CH2

CH5 CH7

CH10 CH13 CH15

E D U

GT is executed when all groups are in STOP and AUTO modes. GT can also be executed for individual groups.

a. Check that all groups are in STOP and AUTO modes.

Read the channel status of the initial channel for each group and check that bit 0 (RUN/STOP) is ON (STOP) and that bit 1 (AUTO/MANUAL) is OFF (AUTO). If any group does not satisfy these conditions, execute operation com-

Setup Procedure Section 3-1

mands for the initial channel in the gro up an d se t to S TOP and AUTO modes. Groups using 2-PID control also need to be in STOP mode.

Group Channel status

1 Check the status of channel 1. 2 Check the status of channel 5. 3 Check the status of channel 9. 4 Uses 2-PID control and, therefore, does not

b. Read the PV for all channels in groups for which GT is to be executed

and wait for all values to stabilize.

Note Correct tuning results will not be obtained if GT is started before the

PV stabilize.

c. GT is executed by executing an operating command for the initial

channel in the group for which GT is to be executed. Channel status bit 2 (GT Execute/Cancel) is ON during GT.

Example: Executing Gradient Tuning for Group 3

An operating command is executed for channel 9 to execute GT. Note Execute an opera ting c omm and for the initial channel in the group

to cancel GT if an error occurs during GT execution.

Note If any of the following conditions occur, GT will stop and channel

status bit 12 (GT Error) wil l turn ON for the initial channel in the group. In such cases, remove the cause of the erro r and execute GT again.

• If an input error has occurred.

• If the PV for the channel being output exceeds the SP. Control may not be possible if the SP is too low, the output remains ON, or the response speed of the control target is too fast.

During GT , the outputs in the group turn ON and OFF in order and the control target characteristics are measured. The following diagram shows the actual operation.

need to be checked.

Example: GT for a 3-channel Configuration

GT started GT finished

CH1 temperature

CH1 output

CH2 temperature

CH2 output

CH3 temperature

CH3 output

d. Wait until the GT Execute/Cancel bit turns OFF.

GT is completed when this bit turns OFF. Read the PID for each chan-

Setup Procedure Section 3-1

nel in the group and check that the values are refreshed.

Group 1 CH1 P=@@, I=@@, D=@@

CH2 P=@@, I=@@, D=@@ CH3 P=@@, I=@@, D=@@

Group 2 CH5 P=@@, I=@@, D=@@

Note An error will occur if a mix ture of gradient temperature con trol an d 2- P ID c on-

trol is used and GT or AT is executed for all channels. Execute GT or AT for individual groups if a mixture of gradient temperature and 2-PID control is used.

10. Start control. Control is started and canceled for the HFU.

0 1 2 3 4 5 6

TC2 TC2 TC2 TC2 TC2

TC2

CH3

CH1

CH6 CH9 CH11

CH14

CH2

CH5 CH7

CH10 CH13 CH15

E D U

To start con trol for gradient tempera ture cont rol groups, fir st read t he status of the initial channel in the groups and check that bit 13 (GTC Error) is OFF (No error) then execute a RUN operation command.

Note Gradient Temperature Control (GTC) Errors

If the power is interrupted immediately after GT has been completed or while downloading the HFU parameters using the Suppor t Software, the internal parameters for GTC will not be refreshed correctly and control may not be able to be started. Use one of the following methods if this error occurs.

• Re-execute GT.

• Download the parameters again and reset.

• Initialize the setting values and reset.

Example1 : Starting Control for Group 2 (Gradient)

Execute a RUN operation command for channel 5.

Example 2: Starting Control for the Initial Channel in Group 4 (2-PID Control)

Execute a RUN operation command for channel 13.

Example 3: Starting Control for All Groups

Execute a RUN command with all channels specified. Note A RUN command can be executed even for a mixture of gradient

temperature and 2-PID control.

11. Perform Tuning for 2-PID Control. Tuning for 2-PID control is called autotuning (AT). AT is executed and canceled for the HFU.

Setup Procedure Section 3-1

0 1 2 3 4 5 6

TC2

TC2 TC2 TC2 TC2 TC2

CH3

CH6 CH9

CH1

CH11 CH14

CH2

CH5 CH7

CH10 CH13 CH15

AT is executed when set to RUN and A UT O modes. AT can also be executed for individual channels in a group.

a. Check that the channels for which AT is to be ex ecuted are in RUN and

AUTO modes. Read the status o f the channels for which AT is to be executed and check that bit 0 (RUN/STOP) is OFF (RUN) and bit 1 (AUTO/MANUAL) is OFF (AUTO). If these conditions are not met by a channel, execute operation commands for that channel and set to RUN and AUTO modes.

b. Execute an operation command to execute AT for the desired channel.

40% AT Execute and 100% AT Execute options are available. Refer to page 78 for information on the operation differences between the two. Channel status bit 2 (AT Execute/Cancel) will be ON during AT.

E D U

Example: Tuning Channel 14 in Group 4 (2-PID Control)

c. Execute an AT Execute operating command for channel 14.

Wait until the AT Execute/Cancel bit turns OFF. AT has been completed when this bit turns OFF. Read the PID for the corresponding channels and check that the values have been refreshed.

Note An err or wi ll oc cu r if a mixture of gradient t emp eratu re co ntr ol an d

2-PID control is used and GT or A T is executed for all channels. Execute GT or A T for individual groups if a mixture of gradient temperature and 2-PID control is used.

Note Execute AT for one channel at a time if optimum control perfor-

mance is required.

12. Check the Heater Burnout Alarm status. The heater burno ut alarm (HB ) is checked by checking the status of th e Channel Alarm Status b it. The heate r curren t is checked by checking the status of the Heater Current Value Monitor bit.

Setup Procedure Section 3-1

0 1 2 3 4 5 6

TC2

TC2 TC2 TC2 TC2 TC2

CH3

CH6 CH9

CH1

CH11 CH14

CH2

CH5 CH7

CH10 CH13 CH15

HB/HS alarm evaluation

Monitors the current and judgment results.

Variable

type

C4 (84) 0102 Channel Alarm Status - CH1

Address Parameter name

0202 Channel Alarm Status - CH2 0302 Channel Alarm Status - CH3

0502 Channel Alarm Status - CH5 0602 Channel Alarm Status - CH6 0702 Channel Alarm Status - CH7

E D U

Group 1

Group 2

C5 (85) 0100 Heater Current Value Monitor - CH1

0200 Heater Current Value Monitor - CH2 0300 Heater Current Value Monitor - CH3

0500 Heater Current Value Monitor - CH5 0600 Heater Current Value Monitor - CH6 0700 Heater Current Value Monitor - CH7

Group 1

Group 2

Heater burnout (HB) and SSR error (HS) alarms are detected by the Basic Unit. Make any fine adjustments to hysteresis and latch settings at the Basic Unit.

Adjusting Gradient Temperature Control Section 3-2

3-2 Adjusting Gradient Temperature Control

Sufficient temperature un iformity is some times diffic ult to achieve if the MV is saturated when temperatures increas e.

160

140

120

100

Temperature

[°C]

0 50 100 150

Uniformity decreases as the temperature increases

Time [s]

Adjust the control balance coefficient if the temperature uniformi ty is insufficient and the MV for one of the channels becomes saturated. The control balance coefficient has the characteristics outlined below and must, therefore, be adjusted to a value suitable for the system . The SP ca nnot be reac hed, however, if the control balance coefficient is too small. In such cases, return to the default value of 0.8.

Uniformity increases but the speed of the temperature rise drops

Saturated MV

100

MV [%]

0 50 100 150

MVHot plate temperature

Time [s]

Temperature rise speed increases but uniformity drops

Smaller

Control balance coefficient

Larger

Set the control balance coefficient for the initial channel for each group. Example: Adjust the control balance coefficient for channel 5 if adjusting

group 2 when the following group settings apply.

Group Corresponding channels Control type

1 CH1 to CH4 Gradient temperature control 2 CH5 to CH8 Gradient temperature control 3 CH9 to CH12 2-PID control

Changing SPs During Operation Section 3-3

3-3 Changing SPs During Operation

Several channels are grouped together for control whe n gradi ent tem perat ure control is used. Ther efore, switch banks and cha nge the SP for all channels if changing the SP during operation. Uniformity may be adversely affected if the SP is not changed for all channels in the gradient temperature control groups.

CH1 SP

CH1 PV

CH1 and CH2 SP

CH2 SP

When the SPs are changed at different times

CH2 PV

When the SPs are changed at the same tim

The following example shows using bank switching to change SPs.

a. Change the SP for bank 1 during control using bank 0.

BANK CH1 SP CH2 SP CH3 SP

0 100 100 100 ← Control using bank 0 1 150 150 150 ← Change bank 1 SP

b. Switch to bank 1.

All SP for the group are refreshed when the bank is switched.

BANK CH1 SP CH2 SP CH3 SP

0 100 100 100 1 150 150 150 ← Switch to bank 1

When the initial channel of a gradient group is switched, the bank of channels allocated for that group will be switched. For 2-PID control groups, the bank can be switched for individual channels in a group.

CH1 and CH2 PV

Changing SPs During Operation Section 3-3

Basic Units (TC4 and TC2) Functions

This section describes the functions of EJ1G Basic Units.

4-1 Setting Input Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

4-1-1 Input Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

4-1-2 Temperature Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

4-1-3 Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

4-1-4 Input Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

4-2 Setting Output Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

4-2-1 Control Output Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

4-2-2 Alarm Outputs (TC2 Units Only). . . . . . . . . . . . . . . . . . . . . . . . . . . 53

4-3 Setting Control Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

4-3-1 Manipulated Variable (MV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

4-4 Detecting Current Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

4-5 Other Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

4-5-1 Using G3ZA Multi-channel Power Controllers . . . . . . . . . . . . . . . . 56

SECTION 4

Setting Input Specifications Section 4-1

4-1 Setting Input Specifications

4-1-1 Input Type

Set the input type to match the type of sensor being used.

Variable type Parameter name Setting range Default

E0/A0 Input Type (Channel) 0 to 29 5

Conditions for use No special conditions

List of Input Types

Input type Specifica-

Temperature input

Analog inputs

Platinum resistance thermometer

Thermocouple inputs

ES1B Infrared Temperature Sensor

Current input

Voltage input

tion

Pt100 0 −200 to 850 −300 to 1500

JPt100 3 −199.9 to 500.0 −199.9 to 900.0

K5−200 to 1300 −300 to 2300

J7−100 to 850 −100 to 1500

T9−200 to 400 −300 to 700

E 11 0 to 600 0 to 1100 L12−100 to 850 −100 to 1500 U13−200 to 400 −300 to 700

N15−200 to 1300 −300 to 2300 R 16 0 to 1700 0 to 3000 S 17 0 to 1700 0 to 3000 B 18 100 to 1800 300 to 3200 W 19 0 to 2300 0 to 4100 PLII 20 0 to 1300 0 to 2300 10 to 70°C 21 0 to 90 0 to 190 60 to 120°C 22 0 to 120 0 to 240 115 to 165°C 23 0 to 165 0 to 320 140 to 260°C 24 0 to 260 0 to 500 4 to 20 mA 25 Any one of the following ranges, 0 to 20 mA 26 1 to 5 V 27 0 to 5 V 28 0 to 10 V 29

Set value Setting range

(°C) (°F)

1 −199.9 to 500.0 −199.9 to 900.0 2 0.0 to 100.0 0.0 to 210.0

4 0.0 to 100.0 0.0 to 210.0

6 −20.0 to 500.0 0.0 to 900.0

8 −20.0 to 400.0 0.0 to 750.0

10 −199.9 to 400.0 −199.9 to 700.0

14 −199.9 to 400.0 −199.9 to 700.0

by scaling:

−1999 to 9999

−199.9 to 999.9

−19.99 to 99.99

−1.999 to 9.999

Setting Input Specifications Section 4-1

4-1-2 Temperatur e Inputs

■ Temperature Unit

Either °C or °F can be selected.

Variable type Parameter name Setting range Default

E0/A0 Temperature Unit (Channel) 0: °C/1: °F 0

Conditions for use The input type must be set to temperature input.

■ Cold Junction Compensation Method

Specifies whether cold-j unction compensation is performed in the Temperature Controller or externally.

Enable external cold-junctio n compensation when using two thermocoupl es to measure a temperature d ifference or using a external cold-junction c ompensator for even greater precision.

Variable type Parameter name Setting range Default

E0/A0 Cold Junction Compensation

Method (Common)

0: External / 1: Internal

4-1-3 Analog Inputs

Conditions for use

The input type must be set to thermocouple or infrared temperature sensor.

When an analog input is selected, scaling can be performed as needed by the control application.

• The Scaling Upper Limit, Scaling Lower Limit, and Decimal Point Position parameters are used for scaling. These parameters cannot be used when a temperature input type is selected.

• The Scaling Upper Limit parameter sets the physical quantity to be expressed by the upper limit value of input, and the Scal ing Lower Limit parameter sets the p hysical quant ity to be expressed by the lower-limit value of input. The Decimal Point Position parameter specifie s the number of digits below the decimal point.

• The following example shows scaling of an analog input (4 to 20 mA). After scaling, the humid ity can be read directly. In this case, the decimal point is set for 1 digit below the decimal point.

Display (humidity)

Upper limit (95.0%)

Lower limit (10.0%)

Input (mA)

Setting Input Specifications Section 4-1

Variable type Parameter name Setting range Default

E0/A0 (See note.)

Conditions for use The input type must be set to analog input.

This parameter can be set only when operation is stopped. Always set the Scaling Upper Limit > Scaling Lower Limit. If the Scaling Lower Limit > Scaling Upper Lim it, the larg er value will function as the Scaling Upper Limit.

■ Setting Example

In this example, scaling is set to display 0 to 5 V as 10.0% to 95.0%.

Scaling Upper Limit = 950 Scaling Lower Limit = 100 Decimal Point Position = 1

Scaling Upper Limit (Channel) −1999 to 9999 1000 Scaling Lower Limit (Channel) −1999 to 9999 0 Decimal Point Position (Channel) 0: ****

1: ***.* 2: **.** 3: *.***

4-1-4 Input Filter

Sets the time constant of the digital input filter. The following diagram shows the response of the d igital filter to a s tep-wise

input of amplitude A.

Variable type Parameter name Setting range Default

D5/95 Input Digital Filter (Channel) 0.0 to 999.9 Second 0.0

Conditions for use No special conditions

PV before passing through filter

PV after passing through filte

0.63 A

(Time constant)

Input digital filter

Time

Setting Output Specifications Section 4-2

4-2 Setting Output Specifications

4-2-1 Control Output Method

The time-proportional output method is used for the control output. The MV determi nes the per centa ge of tim e that the output is ON dur ing e ach

control period.

100% 80% 60% 40% 20%

OFF

Control period

Note Control responsiveness improves as the control period is short-

ened, but if relays are being used for heater con trol, the rel ay lifetime will also be shortened so we recommend using a control period of at least 20 seconds.

Variab le type Parameter name Setting range Default

E1/A1 Control Period 1 to 4 (I/O) 0 to 99 s 2

Conditions for use No special conditions.

Note If the parameter is set to 0, the period will be 0.5 s.

4-2-2 Alarm Outputs (TC2 Units Only)

Output 3 and output 4 from TC 2 Units are used to output alarm 1 for the channel assigned to the TC2 Unit.

Example for the Following Groups

0 1 2 3 4 5 6

TC2

TC2 TC2 TC2 TC2 TC2

CH1

CH3

F U

CH2

Group 1 (gradient)

Group 2 (gradient)

• If alarm 1 for channel 6 tur ns ON, output 3 from the TC2 Unit wit h communications unit number 3 turns ON.

• If alarm 1 for channel 10 tur ns ON, output 4 from the TC 2 Unit with communications unit number 4 turns ON.

CH6 CH9

CH5 CH7

CH11 CH14

CH10 CH13 CH15

Group 3 (gradient)

Group 4 (2-PID control)

E D U

Setting Control Specifications Section 4-3

4-3 Setting Control Specifications

4-3-1 Manipulated Variable (MV)

■ MV at PV Error

The MV will be 0% when an internal communications error (between the HFU and the TC4 or TC2 Unit) occurs.

Detecting Current Errors Section 4-4

4-4 Detecting Current Errors

Set the Heater Burnout Hysteresis, Heater Burnout Latch, Heater Short Alarm Hysteresis, and Heater Short Alarm Latch parameters in the TC2 or TC4 Units. Refer to 5-5 Detecting Current Errors for details.

Other Functions Section 4-5

4-5 Other Functions

4-5-1 Using G3ZA Multi-channel Power Controllers

Initial Settings The following procedure is required in order to use a G3ZA. The G3ZA cannot

be used in the condition in which it is shipped.

1,2,3... 1. Connect the G3ZA to a Basic Unit. Up to eight G3ZA Units can be connect-

ed to one Basic Unit . If mo r e tha n ei ght Unit s are connected, a con f ig uration error will occur.

2. Turn ON pin 7 of SW2 on the Basic Unit, set SW2 on the G3ZA to 3 (57.6 kbps), and set SW1 on the G3ZA to between 0 and 7 (unit number). The unit number of the G3ZA determines the MV sent from the Basic Unit. For details, refer to Sending MVs to the G3ZA on page 57.

3. Tur n ON the power supply to the Basic Unit and execute a Register Unit Configuration: Reset operation command. No G3 ZA Units are registe red in the default Basic Unit settings.

4. Turn OFF the power sup ply to the Basic Unit and then turn ON the p ower supply in the following order : G3ZA Units and then the Basi c Unit. When the Basic Unit starts, it will automatically scan for connected G3ZA Units.

5. Check the Configuration Error A Status to see if any errors have occurred. If there are no errors, execute a Register Unit Configuration: Regi ster operation command. The next time the Basic Unit is started, it will scan only for the registered G3ZA Units, reducing the startup time.

Connection Example When the EJ1G s tar ts, it sca ns the co nnected G 3ZA Units and automa tically

assigns names G3ZA1, G3ZA2, etc., in order starting with the lowest unit number.

Example: In this example, the G3ZA Units have been set to unit numbers 0, 1,

3, and 5.

The following diagram shows how the G3ZA Units are associated with the EJ1G.

Unit 0 ⇒ G3ZA1 Unit 1 ⇒ G3ZA2 Unit 3 ⇒ G3ZA3 Unit 5 ⇒ G3ZA4

G3ZA

Unit No. 0 Unit No. 1 Unit No. 3 Unit No. 5

Other Functions Section 4-5

Unit number Variable type Parameter name

0 DA/9A G3ZA1 - CH1 Slope

G3ZA1 - CH1 2 Slope

···

1 G3ZA2 - CH1 Slope

G3ZA2 - CH1 2 Slope

···

3 G3ZA3 - CH1 Slope

G3ZA3 - CH1 2 Slope

···

5 G3ZA4 - CH1 Slope

G3ZA4 - CH1 2 Slope

···

Settings The G3ZA settings are read and written through the Basic Unit.

The Basic Unit has addresses allocated in its variable area for use with the G3ZA. The G3ZA set values can be read and written by reading and wr iting that variable area. Refer to Parameter List on page 175 for details on the variable area for the G3ZA. Refer to the G3ZA Multi-channel Power Controller User’s Manual (Cat. No. Z200) for details on the corresponding functio ns an d settings.

Sending MVs to the G3ZA

G3ZA Models with 4 Channels

■ Example

In this example, G3ZA settings are changed.

Unit No. 1

TC4 EDU Host device

Send the following command from the host device to TC4 when setting the Channel 2 Heater Burnout Detection Value to 10 A in the G3ZA with unit number 1.

G3ZA G3ZA

[STX]0100001029A0219000001000A[ETX][BCC]

Unit No. 0 Unit No. 1

The G3ZA's unit number an d model deter mine which MVs are sent from th e EJ1G to the G3ZA.

The EJ1G uses the G3ZA's unit number to determine whether to send heating outputs or cooling outputs.

Other Functions Section 4-5

• G3ZA Units with unit numbers 0 to 7

TC4 G3ZA

CH1 Control Output (Heating) CH2 Control Output (Heating) CH3 Control Output (Heating) CH4 Control Output (Heating)

Note With a TC2, the Channel 3 and 4 MVs will be set to 0.0%.

Channel 1 MV Channel 2 MV Channel 3 MV Channel 4 MV

G3ZA Models with 8 Channels

Note With a TC2, the Channel 3 to 8 MVs will be set to 0.0%.

MVs Output from the G3ZA

!Caution If the MV is stored or calculated at the G3ZA and the G3ZA is turned ON

The following outputs will be sent whether the c ontrol method is s et to standard or heating/cooling control.

TC4 G3ZA

CH1 Control Output (Heating) CH2 Control Output (Heating) CH3 Control Output (Heating) CH4 Control Output (Heating)

0.0%

Channel 1 MV Channel 2 MV Channel 3 MV Channel 4 MV Channel 5 MV Channel 6 MV Channel 7 MV Channel 8 MV

The outputs of predetermined channels are set in the G3ZA's MV, but any MV can be output to multiple channels by setting the G3ZA's “Source Ch annel.” Arithmetic operations can also be executed on each MV.

before the EJ1G, the controlled varia ble produced at th e G3ZA will be output (the output may not be 0.0%) until the EJ1G starts operating. When using MV storage or MV calculation, verify that the controlled variable produced by the G3ZA is appropriate.

■ Example

In this example, the TC4's channel 1 Control output (heating) is output to G3ZA channels 1 to 4.

TC4 G3ZA

CH1 Control Output (Heating) CH2 Control Output (Heating) CH3 Control Output (Heating) CH4 Control Output (Heating)

Channel 1 MV Channel 2 MV Channel 3 MV Channel 4 MV

Set with the Source Channel parameter.

Operation Operation Operation Operation

Set with the Slope and Offset parameters.

Channel 1 controlled variable Channel 2 controlled variable Channel 3 controlled variable Channel 4 controlled variable

Other Functions Section 4-5

G3ZA settings Set value

CH1 Source Channel 1 CH2 Source Channel 1 CH3 Source Channel 1 CH4 Source Channel 1

Precautions Always use the G3AZ’s current error detection function to detect current

errors for G3ZA outputs. The EJ1 G current error detectio n fu nc tio n c ann ot b e used. The G3ZA curren t error detection function c an be used if a 4-channel Basic Unit is used.

Other Functions Section 4-5

Advanced Unit (HFU) Functions

This section describes the functions of EJ1G Advanced Unit.

5-1 Setting Input Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

5-1-1 Input Type, Temperature Inputs, Analog Inputs, and Input Filter . . 62

5-1-2 Decimal Point Position B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

5-1-3 Input Shift (Correction) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

5-2 Setting Output Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

5-2-1 Control Output Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

5-3 Setting Control Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

5-3-1 Starting and Stopping Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

5-3-2 Selecting the Control Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

5-3-3 Setting the Set Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

5-3-4 Setting the SP Ramp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

5-3-5 Setting the Manipulated Variable (MV) . . . . . . . . . . . . . . . . . . . . . . 74

5-3-6 Tuning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

5-3-7 Disturbance Overshoot Adjustment Function . . . . . . . . . . . . . . . . . 78

5-3-8 Operation during Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

5-4 Setting Alarm Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

5-4-1 Alarm Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

5-4-2 Alarm Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

5-4-3 Alarm Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

5-4-4 Standby Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

5-4-5 Alarm Latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

5-4-6 Closed in Alarm or Open in Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . 86

5-4-7 Alarm SP Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

5-4-8 Channel Alarm Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

5-5 Detecting Current Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

5-5-1 Heater Burnout Alarm (HB Alarm) . . . . . . . . . . . . . . . . . . . . . . . . . 88

5-5-2 Heater Short Alarm (HS Alarm). . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

5-6 Programless Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

5-6-1 Connectable Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

5-6-2 Checking Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

5-6-3 Detailed Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

5-6-4 Description of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

5-6-5 Operation Command Codes for Programless Communication s. . . . 117

5-6-6 Programless Communications Errors. . . . . . . . . . . . . . . . . . . . . . . . 120

5-7 Other HFU Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

5-7-1 Bank Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

5-7-2 Event Inputs (TC2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

5-7-3 Auxiliary Output Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

5-7-4 Using G3ZA Multi-channel Power Controllers . . . . . . . . . . . . . . . . 123

SECTION 5

Setting Input Specifications Section 5-1

5-1 Setting Input Specifications

5-1-1 Input Type, Temperature Inputs, Analog Inputs, and Input Filter

The input type, temperature inputs, analog inputs, and input filter are set in the TC4 and TC2 Units. Refer to 4-2 Setting Output Specifications for details.

5-1-2 Decimal Point Position B

The Decimal Point Position B parameter is used to set the decimal poin t position for the PV. Always set the same decim al point position as the input typ e set for the TC4 and TC2 Units.

Variable type Parameter name Setting range Default

E0/A0 Decimal Point Position B

(Common)

Conditions for use No special conditions.

Note The Deci ma l Point Position B parameter can be se t onl y when op-

eration is stopped.

Example 1: When the TC4 or TC2 Unit input type is set t o 10 (T typ e the rmo-

couple input,

−199.9 to 400.0°C):

Set the Decimal Point Position B parameter to 1 (***.*).

Example 2: When the TC4 or TC2 Unit Input Type parameter is set to 25 (4 to

20 mA current input) and the TC4 or TC2 Unit Decimal Point Position B parameter is set to 2 (**.**):

Set the Decimal Point Position B parameter to 2 (**.**).

0: **** 1: ***.* 2: **.** 3: *.***

5-1-3 Input Shift (Correction)

If there is a significant difference between the tem perature at the measurement point and th e location whe re the temperatu re display is neede d so that the display/control performance is unsatisfactory at the present sensor position (measurement p oint), the temperature d ifference can be set as an i nput shift (correction) value.

Variable type Parameter name Setting range Default

D5/95 Input Value 1 for Input Correction

Conditions for use No special conditions.

Note (1) The decimal point position will be the value set for the Decimal Point Po-

sition B parameter.

(2) The decimal poin t position is deter mined by the se nsor selection. Wit h

analog inputs, the decimal po int position is determined by the Deci mal Point Position para meter set ting. In this c ase, however, the 0 (****) decimal point position setting will be treated as setting 1 (***.*).

−1999 to 9999 EU

(Channel)

Input Shift 1 (Channel) −199.9 to 999.9 EU

Input Value 2 for Input Correction

(Channel)

Input Shift 2 (Channel) −199.9 to 999.9 EU

(See note 1.)

(See note 2.)

−1999 to 9999 EU (See note 1.)

(See note 2.)

0.0

1000

0.0

Setting Input Specifications Section 5-1

Simple Shift: One-point Shift

Advanced Shift: Two-point Shift

The temperature measur ements at a ll points in the sensor ran ge are shifted . For example, make the following settings if you want to increase the temperature by 1.2°C.

• Input Shift 1 = Input Shift 2 = 1.2

Note It is not necessary to set the Inp ut Value 1 for Input Correction or In put Value

2 for Input Correction parameters. Leave these parameters set to their default settings.

When the measured value after the setting is 200°C, the proces s value will become 201.2°C

Temperature

After shifting

Input shift value

Before shifting

Input

A linear compen sation can be applie d by setting the Input Value 1 for Input Correction in Input Shift 1 and independently setting the Input Value 2 for Input Correction in Input Shift 2. If different shift values are set for Input Shift 1 and Input Shift 2, the slope of the line may be different before and after applying the input shift.

Display

Calculating Input Shift Values

Input Shift 2

After shifting

Before shifting

Input Value 1 for In

ut Correction

Input Shift 1

Input Value 2 for In

ut Correction

Input

Measure the temp erature at two po ints: the present value displayed by the EJ1G and the location (control target) that needs to be displayed.

Preparations

1. Set the input type to match the sensor being used.

2. Prepare a thermometer capable of measuring the temperature of the control target as shown in the following diagram so th at a 2-poi nt s hi ft can be performed.

500°C

(A) EJ1G Temperature Controller

550°C

(B) Thermometer

Setting Input Specifications Section 5-1

Two-point Shift Method

1,2,3... 1. Shift the controller readout at two reference temperatures, near room tem-

perature and near the value at which the temperature of the control target is to be controlled. Bring the temperature of the control target close to room temperature and close to the set point , and che ck control target temp erature (B) and controller readout (A).

2. Check the temperature of the control target near room temperature (B) and the controller readout (A), and calculate the temperature difference as shown below.

Object temperature (B) − Controller readout (A)

Set the temperature difference as Input Shift 1 and set the controller readout (A) as Input Value 1 for Input Correction.

3. Check the temperature of the control target near set-point temperature (B) and the controller readout (A), and calculate the temperature difference as

shown below.

Object temperature (B) − Controller readout (A)

Set the temperature difference as Input Shift 2 and set the controller readout (A) as Input Value 2 for Input Correction.

4. After you have set the calculated values, check controller read out (A) an d control target temperature (B).

5. In this case, the two-point shift was performed near room temperature and the set-point temperature, but if you want to improve accuracy near the set point, perform the two-point shift at point s above and below the set-p oint temperature. An example shift is shown in the following diagram.

Controller readout (A)

Controller readout after shifting (e.g., 550°C) Controller readout before shifting (e.g., 500°C)

Input value 2 for Input Correction

Input value 1 for Input Correction Controller readout before shifting (e.g., 40°C) Controller readout after shifting (e.g., 25°C)

Room temperature (e.g., 25°C)

After shifting

Input Shift 1

Input Shift 2

Before shifting

Control target temperature (B)

Temperature near set point (e.g., 550°C)

■ Two-point Shift Example

In this example, the input type is set to K (5): −200°C to 1,300°C. Check the temperature of the control target.

When room temperature (B) = 25°C, the Controller readout (A) = 40°C.

When the temperature near the set point (B) = 550°C, the Controller readout (A) = 500°C.

In this case, the input shift parameters are calculated as follows: Input Value 1 for Input Correction = Controller readout (A) = 40°C Input Shift 1 = Object temperature (B) - Controller readout (A) =

25°C

− 40°C = −15.00°C

Setting Input Specifications Section 5-1

Input Value 2 for Input Correction = Controller readout (A) = 500°C Input Shift 2 = Object temperature (B) - Controller readout (A) =

550°C

− 500°C = 50.00°C

Setting Output Specifications Section 5-2

5-2 Setting Output Specifications

5-2-1 Control Output Method

The control output me thod is se t in the TC4 or TC2 Unit. R efer to 4-2-1 Control Output Method for details.

Setting Control Specifications Section 5-3

5-3 Setting Control Specifications

5-3-1 Starting and Stopping Control

■ Star t Control (RUN) and Stop Control (STOP)

The following two methods can be used to s tart/stop control . For details, refer to the corresponding pages.

1. Starting/s topping control with an operation comm and: 6-4-11 Operation

Commands

2. Starting/stopping control with an event input: 5-7-2 Event Inputs (TC2)

■ Operation After Power ON

The operation after power goes ON can be set to Continue, Stop, or Manual mode operation. This setting also applies to operation after a software reset.

Variable type Parameter name Setting range Default

F0/B0 Operation After Power ON

(Common)

Conditions for use No special conditions.

0: Continue 1: Stop 2: Manual Mode

Note This parameter can be set only when operation is stopped.

When this parameter has been cha nged, the new setting becomes effective the next time a software reset is performed for the Unit or the next time power is turned ON.

Operation

After Power ON

Continue RUN/STOP Retains the status that existed before power went OFF.

Auto/Manual Retains the status that existed before power went OFF. Manipulated

variable

Stop RUN/STOP Stop

Auto/Manual Retains the status that existed before power went OFF. Manipulated

variable

Manual mode RUN/STOP Retains the status that existed before power went OFF.

Auto/Manual Manual Manipulated

variable

•For Auto mode before power OFF: MV depends on RUN/STOP status. When set to RUN, operation starts from the initial value. When set to STOP, operation starts from the MV at Stop parameter setting.

• For Manual mode before power OFF: The manipulated variable from before power was interrupted is maintained.

•For Auto mode before power OFF: Operation starts from the MV at Stop parameter setting.

• For Manual mode before power OFF: The manipulated variable from before power was interrupted is maintained.

•For Auto mode before power OFF: Operation starts from the MV at Stop parameter setting.

• For Manual mode before power OFF: The manipulated variable from before power was interrupted is maintained.

Operation

2-PID contro l

Setting Control Specifications Section 5-3

5-3-2 Selecting the Control Method

Gradient temperature control or 2-PID control can b e selected as the contr ol method.

Variable type Parameter name Setting range Default

F1/B1 Control Type (Group) 0: Gradient tem-

perature control 1: 2-PID control

Conditions for use No special conditions.

Note The control method can be set only while operation is stopped.

If the control method is changed, execute a software reset or cycle the power to enable the setting.

Gradient Temperature Control

Note (1) Refer to 5-7-1 Bank Function for information on bank specifications.

Gradient temperature contr ol is set using the Pr oportiona l Band (P), Integral Time (I), Derivative Time (D), and Control Balance Coefficient parameters.

■ PID

Settings

When using gradient temperatu re control, use gradient tuning (GT) to set th e PID constants. Gradient tuning will automatically set the optimum PID constants (i.e., the proportional band, integral time, and derivative time).

Note Refer to 5-3-6 Tuning for information on gradient tuning (GT).

Variab le type Parameter name Setting range Default

D0/90 Proportional Band (Bank) 0.1 to 999.9 EU

Integral Time (Bank) 0 to 3999 Seconds 233 Derivative Time (Bank) 0.0 to 999.9 Seconds 40.0

Conditions for use No special conditions.

(See note 2.)

(2) The decimal point posi tion is determi ned by the setting for the Decimal

Point Position B parameter. If, however, the Decimal Point Position B parameter is set to 0 (****), it will be treated as setting 1 (***.*).

If the temperature fluctuates even after GT has been executed, adjust using the same PID constants for all channel s in the group. The method for adjusting PID is the sam e as for adjusting PID for 2-PID c ontr ol. If the per formanc e is still unsatis factory, use the rules outline d in t he following table to adjus t the

PID for the appropriate channel.

If the temperature is fluctuating for all channels:

If the temperature for the initial channel is fluctuating:

If the temperature is fluctuating for the last channel:

If the temperature is fluctuating for a channel other than thos e o utl ined above:

Adjust the PID for the initial channel.

Adjust the PID for the initial channel and channel 1.

Adjust the PID for the last channel.

Adjust the PID for that channel and the next channel.

8.0

Setting Control Specifications Section 5-3

When Performing 4-channel Gradient Temperature Control

If the temperature is fluctuating for all channels:

If the temperature is fluctuating for channel 1 (the initial channel):

If the temperature is fluctuating for channel 4 (the last channel):

If the temperature is fluctuating for channel 3:

■ Setting the Control Balance Coefficient

Refer to 3-2 Adjusting Gradient Temperature Control for details.

Variable type Parameter name Setting range Default

D5/95 Control Balance Coefficient

Conditions for use Gradient temperature control

■ Setting the Proportional Band x10 Compensation and Alpha Parameters

The settings are th e same as for 2-PID control. Refer to 2-PID Control (Twodegrees-of-freedom PID) on page 69 for details.

Adjust the P ID for channel 1.

Adjust the P ID for channel 2.

Adjust the P ID for channel 4.

Adjust the PID for channels 3 and 4.

0.00 to 99.99

(Channel)

0.80

2-PID Control (Two-degrees-offreedom PID)

The propor tional band (P), integral time (I), and derivative time (D) must be set for 2-PID control.

■ PID Settings

When the control characteristics are unknown, perform autotuning (AT). When AT i s executed, t he optimum PID constants for the set point at t hat time are set automatically.

When the control charac teristic s are alrea dy known, the PID param eters can be set directly to adjust control. T he PID pa rameters ar e set with th e Proportional Band (P), Integral Time (I), and Derivative Time (D) parameters.

Note Refer to Autotuning (AT) on page 77 for details on autotuning.

Variab le type Parameter name Setting range Default

D0/90 Proportional Band (Bank) 0.1 to 999.9 EU

(See note 2.) Integral Time (Bank) 1 to 3999 Seconds 233 Derivative Time (Bank) 0.0 to 999.9 Seconds 40.0

Conditions for use No special conditions.

Note (1) Refer to 5-7-1 Bank Function for details on banks.

(2) The decimal poin t position is deter mined by the se nsor selection. Wit h

8.0

• Proporti onal action : In propor tional action, the MV is propor tional to the deviation (control error).

Setting Control Specifications Section 5-3

• Integral action: This control action produces an output that is proportional to the time inte gral of the control error. An offset normally occurs in proportional control, so proporti onal action is used in combinati on with integral action. As time passes, this offset disappears and the control temperature (process value) matches the set point.

• Derivative action: This control action produces an output that is proportional to the rate of change of the input. Since proportional control and integral control correct for errors in the control result , the control system will b e slow to respond to sudden changes in temperature. The derivative action performs a corrective action by increasing the MV in propor tion to the slope of the temperature change.

• Effect of Changes to P (Proportional Band)

Increased P The curve rises gradually and the

Set value

settling time is l ong, b u t o v ersh ooting is preven ted .

Decreased P Overshooting and hunting occur, but

Set value

the set point is reached quickly and the temperature stabi lizes.

• Effect of Changes to I (Integral Time)

Increased I It takes a long time for the process

Set valueSet value

Decreased I Overshooting and undershooting

value to reach the set point. It takes time to achieve a stable state, but overshooting, undershooting, and hunting are reduced.

occur. Hunting occurs. The process value rises qui ckly.

• Effect of Changes to D (Derivative Time)

Increased D Oversho oti ng, und ers hoo tin g, and

the settling time are reduced, but fine

Set value

Decreased D Overshooting and undershooting are

Set value

hunting occurs on the changes themselves.

increased and it takes time for the process value to reach the set point.

Setting Control Specifications Section 5-3

■ Proportional Band × 10 Compensation

When this parameter is set to Enabled, th e pr oportional band is i ncreas ed by a factor of 10. Use this parameter when the proportional band setting range is insufficient.

Variable type Parameter name Setting range Default

F0/B0 Proportional Band × 10

Compensation (Common)

Conditions for use No special conditions.

Note This parameter can be set only while operation is stopped.

When this parameter has been cha nged, the new setting becomes effective the next time a software reset is performed for the Unit or the next time power is turned ON.

■ Setting the Alpha

This parameter sets the 2-PID constant alpha (α).

Note Normally, this parameter is left at its default value.

Variab le type Parameter name Setting range Default

D5/95 Alpha (Channel) 0.00 to 1.00 0.65

Conditions for use No special conditions.

0: Disabled 1: Enabled

5-3-3 Setting the Set Point

These parameters set the set point.

Variable type Parameter name Setting range Default

D0/90 Set Point (Bank) −1999 to 9999 EU

Note (1) Refer to 5-7-1 Bank Function for details on banks.

Set the set point so that it is within the input range as well as the set point limiter range. If the set point is out-of-range, the internal set point actually used for control will be limited to a value within the inp ut range and set point limiter range.

(2) The decimal point position is the same as set for the Decimal Point Posi-

tion B parameter.

■ Set Point Limiter

These parameters apply a limit to the set point's setting range so that the control subject does not reach an abnormal temperature.

Variable type Parameter name Setting range Default

D5/95 SP Upper Limit (Channel) −1999 to 9999 EU

(See note 2.)

(See note 3.)

SP Lower Limit (Channel) −1999 to 9999 EU

(See note 3.)

9999

−1999

Conditions for use No special conditions.

Note (1) Set th e SP Upper and Lower Limi ts within the i nput range and also set

the SP Upper Limit > SP Lower Limit. If the SP Lower Limit > SP Upper Limit, the larger value will functi on as the SP Upper Limit. In addition, if the limit range is set outside of the input range, it will be limited to the input range.

Setting Control Specifications Section 5-3

The SP will not be changed automatic ally, even if the input type or SP Limiter is changed. A lthough the SP will not be changed automatically, the internal SP used for control wi ll be limited to th e input range or SP Limiter (whichever range is narrower).

SP Limiter range

Internal SP

SP Limiter range

Internal SP

MV Upper Limit

(2) The SP is not change d, but the internal SP used for contr ol is li mited by

the upper limit of the input range.

(3) The decimal point position is the same as set for the Decimal Point Posi-

tion B parameter.

5-3-4 Setting the SP Ramp

The SP ramp function r estr icts the width of cha nges in t he set point as a rate of change. When the SP ramp function is enabled and the change width exceeds the specified rate of change, this function can restrict the set p oint within an area, as shown in the following diagram.

While the SP ramp fun ction is op erating, contr ol will be performed n ot for the specified set point but rather for the set point r estri cted by the rate of change set for the SP ramp function.

SP Ramp

SP after change

SP before change

Point of change

SP Ramp Rise Value

SP Ramp Time Unit

Time

The rate of change dur ing SP ramp operation is specifie d by the SP Ramp Rise Value, SP Ramp Fall Value, and SP Ramp Time Unit parameters. The SP ramp function will operate when the SP Ramp Rise Value or SP Ramp F all Value is not set to 0 (disabled). The Ramp SP can be checked by using the Internal SP parameter.

Variab le type Parameter name Setting/mo nitorin g

E5/A5 (See note 1.) SP Ramp Time Unit

(Channel)

D0/90 SP Ramp Rise Value

(Bank)

SP Ramp Fall Value

(Bank)

C4/84 Internal SP (Channel) −1999 to 9999 EU ---

0: Seconds 1: Minutes

0 to 9999 EU/s or min (See note 2.)

range

Default

Conditions for use No special conditions.

Setting Control Specifications Section 5-3

Note (1) This parameter can be set only when operation is stopped.

(2) The function is stopped if this parameter is set to 0. The unit is determined

by the setting of the SP Ramp Time Unit parameter. Refer to 5-7-1 Bank Function for details on banks. The decimal point position is the same as set for the Decimal Point Position B parameter.

Note Refer to 5-4-7 Alarm SP Selection for details on alarms during SP

ramp operation.

Operation at Startup If the SP ramp function is enabled when the Controller is turned ON or

switched from STOP to RUN mode, the process value may reach the set point using the SP ramp functi on in the same way as changing the set poin t. In th is case, operation is carried out with the process value regarded as the set point before the change was made.

SP ramp operation at s tartup depends on the relationship between the process value and the set point, as shown in the following diagrams.

Process value

PV < SP

Rising SP ramp

Time

Power ON

Process value

PV > SP

Falling SP ramp

Power ON

When performing gradient temperature control, the following procedure is used to determine the start point for the SP ramp.

1. The channel in the group with the largest deviation (difference between SP and PV) is found.

2. The PV for the channel with the largest deviation is used as the start point for the SP ramp.

3. For all other channels, the difference is found between that channel’s SP and the SP for the channel with the largest deviation. The start point for the SP ramp is the start point for the channel with the largest deviation plus this difference.

Example 1

CH SP PS Deviation SP set value SP ramp start

1 150 25 125 0 (=150-150) 18 (=18+0) 2 150 21 129 0 (=150-150) 18 (=18+0) 3 150 18 132 (max.) 0 (=150-150) 18 (=18+0)

point

Time

Example 2

CH SP PS Deviation SP set value SP ramp start

point

1 110 105 5 -5 (=110-115) 95 (=100-5) 2 115 100 15 (max.) 0 (=115-115) 100 (=100-0) 3120130−10 5 (=120-115) 105 (=100+5)

Operation Example using Example 1 Values

Setting Control Specifications Section 5-3

PV1 PV2

PV3

Start of operation

SP ramp

Restrictions during SP Ramp Operation

• Autotuning is started after the SP ramp operation has been completed.

• The SP ramp operation will continue even if operation is switched to manual mode.

• When control is stopped or an error occ urs, the SP ramp funct ion will be disabled.

5-3-5 Setting the Manipulated Variab le (MV)

■ Manual MV

If control is set to manual mode, the standard control function will stop and the MV set in the Manual MV parameter can be output.

Variable type Parameter name Setting range Default

D5/95

Conditions for use The control method must be set to 2-PID control in manual

Actual MV

100.0%

0.0%

Manual MV (Channel)

mode.

Manual MV

−5.0 to 105.0%

Note Refer to 6-4-11 Operation Commands for details on using an operat ion com-

Operation When Switching between Auto and Manual Modes

−5.0% 105.0%100.0%

Use an event input or operation command to switch between auto mode (standard control) and manual mode. When using an event input to switch modes, set the Event Input Assignment parameter to Auto (0)/Manual (1). After the event input is set, it will operate as follows:

Event input Operation

OFF Auto Mode ON Manual Mode

mand to switch the mode. Check the Channel Status parameter (variable type C4/84) to confirm whether the Controller is in auto mode or manual mode.

The following diagram shows the operation when the mode is switched between auto mode and manual mode.

Setting Control Specifications Section 5-3

Manual

Auto

Inherits the MV that existed before the mode change.

MV changes

Power OFF

Power interrupted

PowerONMV

Tim

changes

■ MV at Stop

This parameter sets the MV when control is stopped. For heating/cooling contr ol, the MV at Stop p arameter applies t o the cooling side if the MV is negative and to the heating side if the MV is positive. The default is 0.0, so an MV will not be output for either standard or heating /

cooling control with the default setting.

Variable type Parameter name Setting range Default

D5/95

MV at Stop (Channel)

−5.0 to 105.0%

Conditions for use No special conditions.

The order of pr iority is as follows: Manual MV > MV at Stop > MV at PV

Error.

■ MV at PV Error

This parameter sets the MV when an input error or remote SP input error occurs.

Variable type Parameter name Setting range Default

D5/95

MV at PV Error (Channel)

−5.0 to 105.0%

Conditions for use No special conditions.

The order of pr iority is as follows: Manual MV > MV at Stop > MV at PV Error.

■ MV Limiter

This function limits the MV output by applying upper a nd lower limits to the calculated MV.

• The following MVs take priority over the MV limits.

•Manual MV

•MV at Stop

• MV at PV Error

Output

100%

MV Upper Limit

MV Lower Limit

Setting Control Specifications Section 5-3

Variable type Parameter name Setting range Default

D5/95

Conditions for use No special conditions.

MV Upper Limit (Channel) −5.0 to 105.0% MV Lower Limit (Channel) −5.0 to 105.0%

105.0

−5.0

Note Set the limits so that the MV Upper Limit > MV Lower Limit.

If the MV Lower Limit > MV Upper Limit, the larger value will function as the MV Upper Limit.

5-3-6 Tuning

Gradient Tuning (GT) Gradient temperature control finds the relationship between points with

mutual interference and performs cont rol. Gradient tun ing (GT) is a ser ies of operations that automatic ally measure th e degree of mutual interference and executes PID tuning at the same time, to adjust the in ternal parameters tha t are used to find this relationship. Always execute GT only when all groups (includi ng 2-PID contr ol groups ) are stopped.

• GT cannot be executed in RUN or MANUAL modes.

• An operation command is used to execute and cancel GT. Ref er to 6-4-11 Operation Commands for details.

• GT automatically c alcu lat es th e di fferences in c hara cteristics of the different control objects for eac h channel and finds the rela tionship between these differences. As a result, the differences in character istics for each channel does not ap pear as differences in PID values. The PID values calculated using GT will be the same for all channels in the group.

• GT will stop under the following conditions.

• If an input error has occurred.

• If the PV for the channel with outputs ON exceeds the SP.

• If an operation command is executed for STOP or MANUAL modes or to cancel GT.

• If the Operation During Error (Selection A/C/D) parameter is set to MV at PV Error or the conditions for stopping control have been occurred

• If an internal communications error has occurred

• If the internal parameters c annot be cal culated correctly f rom the G T measurement results

• The following parameters are usually used at the default settings.

Variable type Parameter name Setting range Default

E5/A5

GT Natural Cooling Time (Common)

GT Stabilization Band (Common)

0 to 9999 s 300

0.0 to 999. 9 EU (See note 2.) 1.0

Conditions for use Gradient temperature control

Note (1) This parameter can be set only while operation is stopped.

(2) The decimal point posi tion is determi ned by the setting for the Decimal

Point Position B parameter. If, however, the Decimal Point Position B parameter is set to 0 (****), it will be treated as being set to 1 (***.*).

Setting Control Specifications Section 5-3

■ GT Natural Cooling Time

Channel outputs within a group tur n ON in order during GT. The time from when one output tur ns OFF until the next output tur ns ON can be adjusted using the GT Natural Cooling Time parameter. If here is a period wh ere the temperature for the previous channel has not returned to room tempera ture by the time the next output turns ON, incre ase the setting for the GT Natural Cooling Time. If, on the other hand, ch annels immediately retur n to room temperature in all periods, then shor ten the GT Natural Cooling Time. This will shorten the execution time for GT.

■ GT Stabilization Band

If the temperature of a channel inc reases by more than the value set for the GT Stabilization Band parameter after the output turns ON, the inc rease is treated as the effect of interference.

Autotuning (AT) When autotuning (AT) is executed, the MV is forcibly changed, the control

subject's character istics are observed (with th e limit cycle method), and the best PID constants are automatically set for the SP during execution.

• Autotuning cannot be executed while control is stopp ed, during manual mode operation, or during ON/OFF control.

• Use an operation co mmand to execute autotuni ng. For details, r efer to 6- 4-11 Operation Commands.

• The only parameters that can be received during autotuning are RUN/ STOP, Auto/Manual, AT Execute/Cancel, Alar m 1/2/3 Latch Cancel, and Alarm Latch Cancel All. Other parameters cannot be changed.

• If the STOP parameter is set during autotuning, autotuning will be cancelled and operation will stop. Autotuning will not be restarted even if RUN is set again.

• Normally the following parameters are left at their default settings.

Variable type Parameter name Setting range Default

E5/A5

AT Calculated Gain (Common) 0.1 to 10.0 AT Hysteresis (Channel) 0.1 to 999.9 EU

Limit Cycle MV Amplitude (Common) 5.0 to 50.0% Temporary AT Execution Judgment Deviation

(Channel)

(See note 2.)

0.0 to 999.9 EU (See note 2.)

0.8

20.0

150.0

Conditions for use The control method must be set to sta ndard c ontrol a nd 2-PID

control.

Note (1) This parameter can be set only when operation is stopped.

(2) The decimal poin t position is deter mined by the se nsor selection. Wit h

■ AT Calculated Gain

Sets the gain used whe n calculating the PID con stants in autotuning. Whe n emphasizing flexibility, decrease the set value. When emphasizing stability, increase the set value.

■ AT Hy steresis

The limit cycle operation du ring autotuning has a hysteresis whe n switching ON and OFF. This parameter sets that hysteresis value.

Setting Control Specifications Section 5-3

■ Limit Cycle MV Amplitude

Sets the MV amplitude during limit cycle operation in autotuning.

Note This parameter is disabled for 100% AT.

■ Temporary AT Execution Judgment Deviation

When autotuning has been executed, temporary autotuning will be executed if the deviation specified in this parameter is exceeded.

Note This parameter is disabled for 100% AT.

■ 40% AT

• The width of MV variation in the lim it cycl e can b e chang ed with t he Limit Cycle MV Amplitude parameter. In this case, autotuning will take longer to execute than it does with 100% AT.

• The timing of the lim it cycle's onset depends on wh ether the deviation at the start of autotuning (DV) is less than the Temporary AT Execution Judgment Deviation.

Deviation < Temporary AT Execution Judgment Deviation

Limit Cycle MV Amplitude 40%

Temporary AT Execution Judgment Deviation (Default: 150.0)

Autotuning starts

Autotuning completed

Time

Process value

Set point

Deviation ≥ Temporary AT Execution Judgment Deviation

Limit Cycle MV Amplitude 40%

Temporary AT Execution Judgment Deviation (Default: 150.0)

Autotuning starts

Autotuning completed

Process value

Set point

Time

■ 100% AT

• When autotuning starts, it operates as shown below regardless of the deviation (DV). When you want to shorten the time it takes for autotuning , select 100% AT.

Note The Limit Cycle MV Amplitude and Temporary AT Execution Judgment Devia-

tion parameters are disabled.

Process value

Set point

Limit Cycle MV Amplitude 100%

Time

Autotuning starts

Autotuning completed

5-3-7 Disturbance Overshoot Adjustment Function

The Disturbance Overshoot Adjustment Function adjusts the control waveform when an external disturbance impacts the system.

• When using this function, set the Disturbance Overshoot Adjustment Function parameter to 1 (Enabled).

Setting Control Specifications Section 5-3

• The disturbance response waveform can be adjusted with the Disturbance Gain and Disturbance Time Constant parameters.

Variable type Parameter name Setting range Default

E5/A5 (See note 1.) D5/95

Disturbance Overshoot Adjustment Function (Common)

Disturbance Gain (Channel) −1.00 to 1.00 Disturbance Time Constant

Disturbance Rectification Band

Disturbance Judgment Width

(Channel)

Conditions for use No special conditions.

Note (1) This parameter can be set only when operation is stopped.

(2) The decimal poin t position is deter mined by the se nsor selection. Wit h

■ Disturbance Gain

• Overshooting due to a disturbance can be suppressed more by increasing the Disturbance Gain.

• Overshooting due to a dis turbance can be increased by dec reasing the Disturbance Gain.

• If the Disturbance Gain is set to 0, the Disturbance Overshoot Adjustment Function will not operate.

0: Disabled 1: Enabled

0.01 to 99.99 s

0.0 to 999.9 EU (See note 2.)

−199.9 to 999.9 EU

(See note 2.)

0.65

1.00

0.0

Disturbance Gain = −1

Temperature

Disturbance Gain = −0.5

Disturbance Gain = 0

Disturbance Gain = 0.5

Disturbance Gain = 1

Time

■ Disturbance Time Constant

The recovery time from the disturbance can be made longer by increasing the Disturbance Time Cons tant. The Disturbance Time Constant is normal ly left at its default setting of 1. Use this parameter for fine-tuning when adjusting the Disturbance Gain alone is not sufficient.

Temperature

Disturbance Time Constant = 1

Disturbance Time Constant =

Time

Omron EJ1G User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

EJ1G Modular Temperature Controllers for Gradient Temperature Control

About this Manual:

1-1 Names of Parts

1-2 I/O Configuration and Main Functions

1-3 Internal Block Diagrams

2-1 Installation

2-2 Wiring Terminals

2-3 Using Tool Ports

2-4 Unit Configuration Examples

3-1 Setup Procedure

3-2 Adjusting Gradient Temperature Control

3-3 Changing SPs During Operation

4-1 Setting Input Specifications

4-2 Setting Output Specifications

4-3 Setting Control Specifications

4-4 Detecting Current Errors

4-5 Other Functions

5-1 Setting Input Specifications

5-2 Setting Output Specifications

5-3 Setting Control Specifications