Omron EasySpeed 3G3JV Communications Manual

Cat. No. I548-E1-01

COMMUNICATIONS MANUAL

3G3JE

Compact Simplified Inverters

Preface

Thank you for choosing this 3G3JE-series Compact Simplified Inverter.
This Communications Manual describes Inverter communications specifica­tions and communications setting methods.

Serial communications using the CompoWay/F communications format are supported by
3G3JE Inverters with Communications. This Communications Manual describes Inverter
communications. For information on 3G3JE installation, wiring, and operating methods,
refer to the 3G3JE User's Manual.

• This manual is to be delivered to the final end user of the product.

• After reading the manual, always keep it close at hand for reference when operating the
Inverter.

• Every effort has been made to provide detailed specifications, information on functions,
and interrelationships betw een them. Assume th at an ything not described in this man ual
cannot be performed.

• This manual is intended for the following personnel, who are assumed to have sufficient
knowledge of electrical systems (i .e., an electrical engineer or the equivalent ).

• Personnel in charge of introducing control devices

• Personnel designing the control system

• Personnel installing and connecting control devices

• Personnel managing the site where the Inverter is used

 OMRON, 2006

r
f

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or tran smit ted, 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.

II

Read and Understand this Manual

Please read and understand this manual before using the products. 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.

III

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 THA T THE OMRON PR ODUCTS ARE PROPERLY RATED 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.

IV

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 manual has been carefully checked and is believed to be accurate; however, no
responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

COPYRIGHT AND COPY PERMISSION

This document shall not be copied for sales or promotions without permission.
This document is protected by copyright and is intended solely for use in conjunction with the product.
Please notify us before copying or reproducing this document in any manner, for any other purpose. If
copying or transmitting this document to another, please copy or transmit it in its entirely.

V

Safety Precautions

● Indications and Meanings of Safety Information

The following precautions and signal words are used to provide information to ensure the safe use of
the 3G3JE Inverter. The information provided here is vital to safety. Always observe the precautions
provided.

Meanings of Signal Words

The following signal words are used in this manual.

Indicates an imminently hazardous situation which, if

DANGER

(There are no alert statements with “DANGER” contained in this manual.)

WARNING

not avoided, is l ikely to result in serious injury or may
result in death. Additionally there may be severe prop­erty damage.

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

(There are no alert statements with “WARNING” contained in this manual.)

Indicates a potentially hazardous situation which, if not

CAUTION

avoided, may result in minor or moderate injury or in
property damage.

VI

Meanings of Alert Symbols

The following alert symbols are used in this manual.

Symbol Meaning

General Caution

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

Electrical Shock Caution

Caution

Prohibition

Indicates possibility of electric shock under specific
conditions.

High Tempe rature Caution

Indicates possibility of burns due to high temperatures
under specific conditions.

Disassembly Prohibition

Indicates prohibitions when there is a possibility of
injury, such as from electric shock, as the result of
disassembly.

Mandatory
Caution

General Caution

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

VII

Alert Statements in this Manual

The following alert statements apply to the products in this manual. Each alert statement also
appears at the locations needed in this manual to attract your attention.

Caution

Be sure to use the specified Braking Resistor or Braking Resistor Unit.
Not doing so may occasionally result in moderate burns due to heating of the

Braking Resistor or Braking Resist or Unit.
When using a Braking Resistor or Braking Resistor Unit, be sure to install a

thermal relay to monitor the resistor temperature.
Include a sequence to turn OFF the power supply to the Inverter if the Braking

Resistor or Braking Resistor Unit overheats.
Terminals B1 and B2 are for connecting an opti onal Braking Resistor or Br aking

Resistor Unit. Do not connect an y device other than a Brakin g Resi stor or Brak­ing Resistor Unit to these terminals.

Doing so may occasionally result in moderate fire, heating, or equipment dam­age.

Do not open terminal covers while the po wer is being supplied or for at least
one minute after the power has been turned OFF.

Doing so may occasionally result in minor injury from electrical shock.

Do not remove the fan cover except when replacing the fan. Before replacing
the fan, first turn OFF the power and disconnect the wiring.

Doing so may occasionally result in minor injury from electrical shock.
Install external brea k ers (MCCB) s uitab le for the Inv erter capacity o n the po wer

supply side of the Inverter and take other safety meas ures again st sh ort-circuit­ing in load wiring.

Not doing so may occasionally result in property damage from short-circuiting
in load wiring.

Cover the Inverter or take other measures to prevent filings or lead clippings
from entering the Inverter during installation and wiring.

The Inverter contains high-voltage components and Inv erter damage or prop­erty damage may occasionally occur if the high-voltage components are short­circuited.

VIII

Precautions for Safe Use

■ Installation and Storage Environment

• Do not store, install, or operate the product in any of the following locations.

• Locations subject to direct sunlight.

• Locations subject to temperatures outside the range specified in the specifications.

• Locations subject to humidity outside the range specified in the specifications.

• Locations subject to condensation resulting from severe changes in temperature.

• Locations subject to corrosive or flammable gases.

• Locations subject to exposure to combustibles.

• Locations subject to dust (especially iron dust) or salts.

• Locations subject to exposure to water, oil, or chemicals.

• Locations subject to shock or vibration.

■

Transporting, Installation, and Wiring

• Always use the original shipping box when transporting the Inverter.

• Do not apply e xcessiv e shock to t he Inv erter or drop the In verter . The In verter may mal function
or may be damaged.

• Do not connect an AC po w er suppl y v ol tage to t he U, V , and W outpu t t erminals. Doing so wi ll
damage the Inverter.

• Do not connect any load other than a three-phase inductive motor to the U, V, and W output
terminals.

• Do not connect an A C po wer supply vol tage to t he contr ol I/O t erminals. Doin g so wil l damage
the Inverter.

2

• Use 600-V polyvinyl chloride (PVC) cable with a wire size of 0.75 to 2 mm

to wire the main

circuit terminals. Also, tighten the terminal screws on the terminal block to a torque of 0.8 to

1.0 N·m.

• Take appropriate and sufficient shielding countermeasures when installing systems in the f o l­lowing locations. Not doing so may result in malfunctio n or equipment damage.

• Locations subject to static electricity or other forms of noise.

• Locations subject to strong electromagnetic fields and magnetic fields.

• Locations close to power lines.

■

Operation and Maintenance

• This Inverter can be set to operate from low speed to high speed. Operate the Inverter only
after sufficiently conf irming the allowable range for the motor installation being used.

• Take measures to assure safety before performing maintenance or inspection, or replacing
components.

IX

Precautions for Correct Use

■ Installation

• Mount the product vertically on a wall or on a DIN Track. Lea v e the prescribed space bet ween
this product and the control panel surface and other devices.

■ Main Circuit Power Supply

• Use a three-phase, 200 to 230 V, 50/60 Hz power supply.

■ Operation after Power Interruptions

• If continuing operation is selected for the momentary power interruption restart selection pa­rameter (P09), the system may unexpectedly start operation after a momentary power inter­ruption is reset. Exercise suitable caution.

■ Operation Command Selection

• If the operation command s election parameter (P10) is set to “PLC” to enable usi ng the control
circuit terminal inputs (STF and STR), the motor may start operation when the power supply
is turned ON or an alarm is reset if the control circuit terminals are left ON. Exercise suitable
caution. Also , if signals are chec ked during operation and a v oltage is inc orrectly applied to t he
control circuit terminals , the moto r ma y start moving une xpected ly. Always chec k saf ety befor e
performing signal checks.

■ Motor Overheating Protection (Electronic Thermal)

• The Inverter uses an electronic thermal to protect the motor from overheating. Set the rated
current of the motor in the rated motor current parameter (P01). If more than one motor is op­erated with one Inverter, set the rated motor current parameter (P01) to 0.0 to disable motor
overload detection, and install a thermal relay between the Inverter and each motor. Set the
thermal relay to the nameplate current at 50 Hz and to 1.1 times the nameplate current at 60
Hz.

■ EEPROM Lif e

• The EEPROM has a limited life. Use RAM mode when using communications or other meth­ods to frequently write data.

■ Disposing of the Inverter

• Observe all applicable legal requirements when disposing of the Inverter.

X

About this Manual

This manual is divided into the chapters described in the fol lowi ng tab le. Understanding ho w inf orma­tion is organized will enable you to use the manual more efficiently.

Chapter Contents

Chapter 1
Communications Methods

Chapter 2
CompoWay/F Communica­tions Procedures

Chapter 3
Communications Data

Chapter 4
Appendix

Provides an overview of the communications methods used for the
3G3JE.

Describes the procedures required to use the CompoWay/F commu­nications protocol.

Provides tables of data used in CompoWay/F communications.

Provides a table of ASCII characters.

XI

Table of Contents

Chapter 1. Communications Methods . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1-1 Overview of Communications Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

■Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

■Communications Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

■Transmission Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

■Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

■Connections and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

■Communications Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Chapter 2. CompoWay/F Communications Procedures . . . . . . . . . 2-1

2-1 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

■Command Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

■BCC Calculation Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

■Communications Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

■Response Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

■End Code Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2-2 Structure of Command Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

■PDU Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

■Area Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

■Type Code (Variable Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

■Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

■Number of Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

■List of Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

2-3 Detailed Description of Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

■Read Variable Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

■Write Variable Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

■Read Controller Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

■Read Controller Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

■Echoback Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

■Operation Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

2-4 Response Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Chapter 3. Communications Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3-1 Variable Area Setting Range List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

3-2 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Chapter 4. Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4-1 ASCII List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1

Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R-1

XIII

Chapter 1

Communications
Methods

1-1 Overview of Communications Methods