Omron SYSDRIVE 3G3JV User Manual

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Cat. No. I528-E1-05

USER’S MANUAL

SYSDRIVE 3G3JV

Compact Simplified Inverters

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Thank you for choosing this SYSDRIVE 3G3JV-series product. Proper use and handling of the product will ensure proper product performance, will lengthen product life, and may prevent possible accidents. Please read this manual thoroughly and handle and operate the product with care.

1. To ensure safe and proper use of the OMRON Inverters, please read this USER’S MANUAL (Cat. No. I528-E1) to gain sufficient knowledge of the devices, safety information, and precautions before actual use.

2. The products are illustrated without covers and shieldings for closer look in this USER’S MANUAL. For actual use of the products, make sure to use the covers and shieldings as specified.

3. This USER’S MANUAL and other related user’s manuals are to be delivered to the actual end users of the products.

4. Please keep this manual close at hand for future reference.

5. If the product has been left unused for a long time, please inquire at our sales representative.

NOTICE

1. This manual describes the functions of the product and relations with other products. You should assume that anything not described in this manual is not possible.

2. Although care has been given in documenting the product, please contact your OMRON representative if you have any suggestions on improving this manual.

3. The product contains potentially dangerous parts under the cover. Do not attempt to open the cover under any circumstances. Doing so may result in injury or death and may damage the product. Never attempt to repair or disassemble the product.

4. We recommend that you add the following precautions to any instruction manuals you prepare for the system into which the product is being installed.

S Precautions on the dangers of high-voltage equipment. S Precautions on touching the terminals of the product even after power has been

turned OFF. (These terminals are live even with the power turned OFF.)

5. Specifications and functions may be changed without notice in order to improve product performance.

Items to Check Before Unpacking

Check the following items before removing the product from the package:

S Has the correct product been delivered (i.e., the correct model number and speci-

fications)?

S Has the product been damaged in shipping?

S Are any screws or bolts loose?

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USER’S MANUAL

SYSDRIVE 3G3JV SERIES

Compact Simplified Inverter

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Notice:

OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual.

The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property.

DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death

or serious injury. Additionally, there may be severe property damage.

WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death

or serious injury. Additionally, there may be severe property damage.

Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor

or moderate injury, or property damage.

OMRON Product References

All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers to an OMRON product, regardless of whether or not it appears in the proper name of the product.

The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means “word” and is abbreviated “Wd” in documentation in this sense.

The abbreviation “PC” means Programmable Controller and is not used as an abbreviation for anything else.

Visual Aids

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

Note Indicates information of particular interest for efficient and convenient operation of the product.

 OMRON, 1999

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

No patent liability is assumed with respect to the use of the information contained herein. Moreover, 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.

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General Precautions

Observe the following precautions when using the SYSDRIVE Inverters and peripheral devices.

This manual may include illustrations of the product with protective covers removed in order to describe the components of the product in detail. Make sure that these protective covers are on the product before use.

Consult your OMRON representative when using the product after a long period of storage.

WARNING Do not touch the inside of the Inverter. Doing so may result in electrical shock.

WARNING Operation, maintenance, or inspection must be performed after turning OFF the

power supply, confirming that the CHARGE indicator (or status indicators) are OFF, and after waiting for the time specified on the front cover. Not doing so may result in electrical shock.

WARNING Do not damage, pull on, apply stress to, place heavy objects on, or pinch the cables.

Doing so may result in electrical shock.

WARNING Do not touch the rotating parts of the motor under operation. Doing so may result in

injury.

WARNING Do not modify the product. Doing so may result in injury or damage to the product.

Caution Do not store, install, or operate the product in the following places. Doing so may

result in electrical shock, fire or damage to the product.

S Locations subject to direct sunlight. S Locations subject to temperatures or humidity outside the range specified in the

specifications.

S Locations subject to condensation as the result of severe changes in temperature. S Locations subject to corrosive or flammable gases. S Locations subject to exposure to combustibles. S Locations subject to dust (especially iron dust) or salts. S Locations subject to exposure to water, oil, or chemicals. S Locations subject to shock or vibration.

Caution Do not touch the Inverter radiator, regenerative resistor, or Servomotor while the

power is being supplied or soon after the power is turned OFF. Doing so may result in a skin burn due to the hot surface.

Caution Do not conduct a dielectric strength test on any part of the Inverter. Doing so may

result in damage to the product or malfunction.

Caution Take appropriate and sufficient countermeasures when installing systems in the fol-

lowing locations. Not doing so may result in equipment damage.

S Locations subject to static electricity or other forms of noise. S Locations subject to strong electromagnetic fields and magnetic fields. S Locations subject to possible exposure to radioactivity. S Locations close to power supplies.

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Transportation Precautions

Caution Do not hold by front cover or panel, instead, hold by the radiation fin (heat sink) while

transporting the product. Doing so may result in injury.

Caution Do not pull on the cables. Doing so may result in damage to the product or malfunc-

tion.

Caution Use the eye-bolts only for transporting the Inverter. Using them for transporting the

machinery may result in injury or malfunction.

Installation Precautions

WARNING Provide an appropriate stopping device on the machine side to secure safety. (A

holding brake is not a stopping device for securing safety.) Not doing so may result in injury.

WARNING Provide an external emergency stopping device that allows an instantaneous stop of

operation and power interruption. Not doing so may result in injury.

Caution Be sure to install the product in the correct direction and provide specified clear-

ances between the Inverter and control panel or with other devices. Not doing so may result in fire or malfunction.

Caution Do not allow foreign objects to enter inside the product. Doing so may result in fire or

malfunction.

Caution Do not apply any strong impact. Doing so may result in damage to the product or

malfunction.

Wiring Precautions

WARNING Wiring must be performed only after confirming that the power supply has been

turned OFF. Not doing so may result in electrical shock.

WARNING Wiring must be performed by authorized personnel. Not doing so may result in

electrical shock or fire.

WARNING Be sure to confirm operation only after wiring the emergency stop circuit. Not doing

so may result in injury.

WARNING Always connect the ground terminals to a ground of 100 Ω or less for the 200-V AC

class, or 10 Ω or less for the 400-V AC class. Not connecting to a proper ground may result in electrical shock.

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Caution Install external breakers and take other safety measures against short-circuiting in

external wiring. Not doing so may result in fire.

Caution Confirm that the rated input voltage of the Inverter is the same as the AC power sup-

ply voltage. An incorrect power supply may result in fire, injury, or malfunction.

Caution Connect the Braking Resistor and Braking Resistor Unit as specified in the manual.

Not doing so may result in fire.

Caution Be sure to wire correctly and securely. Not doing so may result in injury or damage to

the product.

Caution Be sure to firmly tighten the screws on the terminal block. Not doing so may result in

fire, injury, or damage to the product.

Caution Do not connect an AC power to the U, V, or W output. Doing so may result in damage

to the product or malfunction.

Operation and Adjustment Precautions

WARNING Turn ON the input power supply only after mounting the front cover, terminal covers,

bottom cover, Operator, and optional items. Not doing so may result in electrical shock.

WARNING Do not remove the front cover, terminal covers, bottom cover, Operator, or optional

items while the power is being supplied. Doing so may result in electrical shock or damage to the product.

WARNING Do not operate the Operator or switches with wet hands. Doing so may result in

electrical shock.

WARNING Do not touch the inside of the Inverter. Doing so may result in electrical shock.

WARNING Do not come close to the machine when using the error retry function because the

machine may abruptly start when stopped by an alarm. Doing so may result in injury.

WARNING Do not come close to the machine immediately after resetting momentary power

interruption to avoid an unexpected restart (if operation is set to be continued in the processing selection function after momentary power interruption is reset). Doing so may result in injury.

WARNING Provide a separate emergency stop switch because the STOP Key on the Operator

is valid only when function settings are performed. Not doing so may result in injury.

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WARNING Be sure to confirm that the RUN signal is turned OFF before turning ON the power

supply, resetting the alarm, or switching the LOCAL/REMOTE selector. Doing so while the RUN signal is turned ON may result in injury.

Caution Be sure to confirm permissible ranges of motors and machines before operation be-

cause the Inverter speed can be easily changed from low to high. Not doing so may result in damage to the product.

Caution Provide a separate holding brake when necessary. Not doing so may result in injury.

Caution Do not perform a signal check during operation. Doing so may result in injury or dam-

age to the product.

Caution Do not carelessly change settings. Doing so may result in injury or damage to the

product.

Maintenance and Inspection Precautions

WARNING Do not touch the Inverter terminals while the power is being supplied.

WARNING Maintenance or inspection must be performed only after turning OFF the power

supply, confirming that the CHARGE indicator (or status indicators) is turned OFF, and after waiting for the time specified on the front cover. Not doing so may result in electrical shock.

WARNING Maintenance, inspection, or parts replacement must be performed by authorized

personnel. Not doing so may result in electrical shock or injury.

WARNING Do not attempt to take the Unit apart or repair. Doing either of these may result in

electrical shock or injury.

Caution Carefully handle the Inverter because it uses semiconductor elements. Careless

handling may result in malfunction.

Caution Do not change wiring, disconnect connectors, the Operator, or optional items, or re-

place fans while power is being supplied. Doing so may result in injury, damage to the product, or malfunction.

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Warning Labels

Warning labels are pasted on the product as shown in the following illustration. Be sure to follow the instructions given there.

H Warning Labels

Warning label

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H Contents of Warning

S For 3G3JV-A2001 to A2007 (0.1 to 0.75 kW) and 3G3JV-AB001 to AB004 (0.1 to

0.4 kW):

S For 3G3JV-A2015 to A2037 (1.5 to 3.7 kW), 3G3JV-AB007 to AB015 (0.75 to

1.5 kW), and 3G3JV-A4002 to A4037 (0.2 to 3.7 kW):

Checking Before Unpacking

H Checking the Product

On delivery, always check that the delivered product is the SYSDRIVE 3G3JV Inverter that you ordered.

Should you find any problems with the product, immediately contact your nearest local sales representative.

D Checking the Nameplate

Inverter model

Input specifications Output specifications

D Checking the Model

3G3JV-A2007

Maximum applicable motor capacity

Voltage class

Installation type

Series name: 3G3JV Series

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Maximum Applicable Motor Capacity

001 0.1 (0.1) kW 002 0.25/0.37 (0.2) kW 004 0.55 (0.4) kW 007 1.1 (0.75) kW 015 1.5 (1.5) kW 022 2.2 (2.2) kW 037 3.7 (3.7) kW

Note The figures in parentheses indicate capacities for motors used outside Japan.

Voltage Class

2 Three-phase 200-V AC input (200-V class) B Single-phase 200-V AC input (200-V class) 4 Three-phase 400-V AC input (400-V class)

Installation Type

A Panel-mounting models (IP10 min.) or

Closed wall mounting

D Checking for Damage

Check the overall appearance and check for damage or scratches resulting from transportation.

H Checking the Accessories

This manual is the only accessory provided with the 3G3JV. Set screws and other necessary parts must be provided by the user.

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About this Manual

This manual is divided into the chapters described in the following table. Information is organized by application area to enable you to use the manual more efficiently.

Chapter Contents

Chapter 1 Overview Describes features and nomenclature. Chapter 2 Design Provides dimensions, installation methods, wiring methods, peripheral

device design information, and peripheral device selection information.

Chapter 3 Preparing for Operation and Monitoring

Chapter 4 Test Run Describes the method for controlling a motor through the frequency

Chapter 5 Basic Operation Describes basic Inverter control functions for users not familiar with

Chapter 6 Advanced Operation Describes all of the functions provided by the Inverter. These functions

Chapter 7 Communications Describes the RS-422/485 Communications Unit and the

Chapter 8 Maintenance Operations Provides maintenance, inspection, and troubleshooting information. Chapter 9 Specifications Provides Inverter specifications, as well as the specifications and

Chapter 10 List of Parameters Lists basic information on Inverter parameters as a reference for users

Chapter 11 Using the Inverter for a Motor

Describes nomenclature and Digital Operator procedures for operating and monitoring Inverters.

adjuster on the front of the Inverter. This can be used for trial operation of the system.

Inverters. The functions that must be understood to drive a motor with an Inverter are described.

will enable more advanced applications, and includes functions that will improve motor control through the Inverter, such as responsiveness (torque characteristics), increasing speed accuracy, PID control, overtorque detection, and other functions.

general-purpose RS-422/485 communications functions provided by the Inverter, including connection methods and sample programming for SYSMAC Programmable Controllers.

dimensions of peripheral devices.

already familiar with Inverter operation. Parameters are listed in order with the page numbers of further information for easy reference.

Describes information on using the Inverter for a motor.

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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

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a period of one year (or other period if specified) from date of sale by OMRON.

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OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING

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NON–INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE

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PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS

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DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

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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

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PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR

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STRICT LIABILITY.

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In no event shall the responsibility of OMRON for any act exceed the individual price of the product on

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which liability is asserted.

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IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS

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REGARDING THE PRODUCTS UNLESS OMRON’S ANALYSIS CONFIRMS THAT THE PRODUCTS

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WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO

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CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

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Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to

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the combination of products in the customer’s application or use of the products.

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At the customer’s request, OMRON will provide applicable third party certification documents identifying

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ratings and limitations of use that apply to the products. This information by itself is not sufficient for a

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complete determination of the suitability of the products in combination with the end product, machine,

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system, or other application or use.

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The following are some examples of applications for which particular attention must be given. This is not

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intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the

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uses listed may be suitable for the products:

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• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions

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or uses not described in this manual.

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

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equipment, amusement machines, vehicles, safety equipment, and installations subject to separate

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industry or government regulations.

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

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Please know and observe all prohibitions of use applicable to the products.

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NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR

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PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND

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INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

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PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user’s programming of a programmable product, or any

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consequence thereof.

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Disclaimers

CHANGE IN SPECIFICATIONS

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Product specifications and accessories may be changed at any time based on improvements and other reasons.

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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

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changed without any notice. When in doubt, special model numbers may be assigned to fix or establish

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key specifications for your application on your request. Please consult with your OMRON representative

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at any time to confirm actual specifications of purchased products.

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DIMENSIONS AND WEIGHTS

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

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PERFORMANCE DATA

Performance data given in this manual is provided as a guide for the user in determining suitability and

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does not constitute a warranty. It may represent the result of OMRON’s test conditions, and the users

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must correlate it to actual application requirements. Actual performance is subject to the OMRON

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Warranty and Limitations of Liability.

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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.

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ERRORS AND OMISSIONS

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Table of Contents

Chapter 1. Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1 Function 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2 Nomenclature 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 2. Design 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

2-1-1 Dimensions 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1-2 Installation Conditions 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2 Wiring 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-1 Removing and Mounting the Covers 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-2 Terminal Block 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-3 Standard Connections 2-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-4 Wiring around the Main Circuit 2-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-5 Wiring Control Circuit Terminals 2-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-6 Conforming to EC Directive 2-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 3. Preparing for Operation and Monitoring 3-1. . . . . . . . . . . . .

3-1 Nomenclature 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1-1 Part Names and Functions 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1-2 Drive Mode and Program Mode 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1-3 Outline of Operation 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 Parameter Copy and Verify Function 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-1 Parameters for the Parameter Copy and Verify Function 3-10. . . . . . . . . . . . . . . . . . . . . . .

3-2-2 Procedure for Copying Parameters 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-3 Parameter Read Prohibit (Prohibiting Writing to Digital Operator) 3-16. . . . . . . . . . . . . .

3-2-4 Error Displays for the Parameter Copy and Verify Function 3-17. . . . . . . . . . . . . . . . . . . .

Chapter 4. Test Run 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1 Procedure for Test Run 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2 Operation Example 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 5. Basic Operation 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-1 Initial Settings 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2 V/f Control 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3 Setting the Local/Remote Mode 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-4 Selecting the Operation Command 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5 Setting the Frequency Reference 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5-1 Selecting the Frequency Reference 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5-2 Upper and Lower Frequency Reference Limits 5-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5-3 Adjusting the Analog Input 5-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5-4 Setting Frequency References through Key Sequences 5-10. . . . . . . . . . . . . . . . . . . . . . . .

5-6 Setting the Acceleration/Deceleration Time 5-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7 Selecting the Reverse Rotation-prohibit 5-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-8 Selecting the Interruption Mode 5-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9 Multi-function I/O 5-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9-1 Multi-function Input 5-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9-2 Multi-function Output 5-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-10 Analog Monitor Output 5-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 18

Table of Contents

Chapter 6. Advanced Operation 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-1 Setting the Carrier Frequency 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-2 DC Injection Braking Function 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-3 Stall Prevention Function 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-4 Overtorque Detection Function 6-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-5 Torque Compensation Function 6-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-6 Slip Compensation Function 6-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-7 Other Functions 6-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-7-1 Motor Protection Characteristics (n33 and n34) 6-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-7-2 Cooling Fan Operation Function (n35) 6-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-7-3 Momentary Power Interruption Compensation (n47) 6-15. . . . . . . . . . . . . . . . . . . . . . . . .

6-7-4 Fault Retry (n48) 6-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-7-5 Frequency Jump Function (n49 to n51) 6-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-7-6 Frequency Detection Function 6-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-7-7 UP/DOWN Command Frequency Memory (n62) 6-19. . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-7-8 Error History (n78) 6-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 7. Communications 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-1 RS-422/485 Communications Unit 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-1-1 Overview 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-1-2 External Dimensions 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-1-3 Names of Parts 7-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-1-4 Mounting Procedure 7-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-2 Inverter Settings 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-2-1 Setting the Communications Conditions 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-2-2 Operation Command Selection (n02) 7-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-2-3 Frequency Reference Input Selection (n03) 7-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-2-4 Setting the Multi-function Inputs (n36 to n39) 7-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-3 Message Communications Basic Format 7-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-4 DSR Message and Response 7-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-4-1 Data Read (Function Code: 03 Hex) 7-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-4-2 Data Write/Broadcast Data Write (Function Code: 10 Hex) 7-15. . . . . . . . . . . . . . . . . . . .

7-4-3 Loop-back Test (Function Code: 08 Hex) 7-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-5 Enter Command 7-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-6 Setting the Communications Data 7-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-7 Register Number Allocations in Detail 7-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-7-1 I/O Function 7-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-7-2 Monitor Functions 7-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-8 Communications Error Codes 7-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-9 Self-diagnostic Test 7-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-10 Communications with Programmable Controller 7-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-10-1 Available Programmable Controllers and Peripheral Devices 7-30. . . . . . . . . . . . . . . . . . .

7-10-2 Wiring the Communications Line 7-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-10-3 Outline of Protocol Macro Function 7-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-10-4 Creating a Project File 7-40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-10-5 Ladder Program 7-50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-10-6 Communications Response Time 7-54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 19

Table of Contents

Chapter 8. Maintenance Operations 8-1. . . . . . . . . . . . . . . . . . . . . . . . . .

8-1 Protective and Diagnostic Functions 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-1-1 Fault Detection (Fatal Error) 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-1-2 Warning Detection (Nonfatal Error) 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2 Troubleshooting 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2-1 Parameters Fail Set 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2-2 Motor Fails to Operate 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2-3 Motor Rotates in the Wrong Direction 8-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2-4 Motor Outputs No Torque or Acceleration is Slow 8-12. . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2-5 Motor Deceleration is Slow 8-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2-6 Motor Burns 8-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2-7 Controller or AM Radio Receives Noise when Inverter is Started 8-13. . . . . . . . . . . . . . .

8-2-8 Ground Fault Interrupter is Actuated when Inverter is Started 8-13. . . . . . . . . . . . . . . . . .

8-2-9 Mechanical Vibration 8-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2-10 Motor Rotates after Output of Inverter is Turned Off 8-14. . . . . . . . . . . . . . . . . . . . . . . . .

8-2-11 Detects OV when Motor Starts and Motor Stalls 8-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2-12 Output Frequency Does Not Reach Frequency Reference 8-15. . . . . . . . . . . . . . . . . . . . . .

8-2-13 Inverter Does Not Run Because EF (Simultaneous Input of Forward and Reverse Commands)

is Detected, or Motor Rotates Momentarily While Control Device Power is OFF 8-15. . .

8-3 Maintenance and Inspection 8-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 9. Specifications 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-1 Inverter Specifications 9-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2 Specifications of Accessories 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-1 List of Accessories 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-2 Adapter Panel 9-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-3 RS-422/485 Communications Unit 9-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-4 Fan Unit 9-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-5 Scaling Meter 9-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-6 Digital Operator 9-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-7 Digital Operator Case 9-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-8 Digital Operator Connection Cable 9-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-9 DC Reactor 9-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-10 DIN Track Mounting Bracket 9-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2-11 AC Reactor 9-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-3 Option Specifications 9-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-3-1 EMC-compatible Noise Filter 9-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-3-2 Simple Input Noise Filter 9-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-3-3 Output Noise Filter 9-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 10. List of Parameters 10-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 11. Using the Inverter for a Motor 11-1. . . . . . . . . . . . . . . . . . . . .

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

Page 20

Overview

1-1 Function

1-2 Nomenclature

Chapter 1

Page 21

Overview Chapter 1

1-1 Function

The compact simple SYSDRIVE 3G3JV-Series Inverter ensures greater ease of use than any conventional model. The 3G3JV Inverter meets EC Directives and UL/cUL standard requirements for worldwide use.

H SYSDRIVE 3G3JV Inverter Models

• The following 3-phase and single-phase 200-V AC-class, and 3-phase 400-V AC-class 3G3JV models are available.

Rated voltage Protective structure Maximum applied

3-phase 200 V AC Panel-mounting models

(conforming to IP20)

Single-phase 200 V AC Panel-mounting models

(conforming to IP20)

3-phase 400 V AC Panel-mounting models

(conforming to IP20)

Model

motor capacity

0.1 (0.1) kW 3G3JV-A2001

0.25 (0.2) kW 3G3JV-A2002

0.55 (0.4) kW 3G3JV-A2004

1.1 (0.75) kW 3G3JV-A2007

1.5 (1.5) kW 3G3JV-A2015

2.2 (2.2) kW 3G3JV-A2022

3.7 (3.7) kW 3G3JV-A2037

0.1 (0.1) kW 3G3JV-AB001

0.25 (0.2) kW 3G3JV-AB002

0.55 (0.4) kW 3G3JV-AB004

1.1 (0.75) kW 3G3JV-AB007

1.5 (1.5) kW 3G3JV-AB015

0.37 (0.2) kW 3G3JV-A4002

0.55 (0.4) kW 3G3JV-A4004

1.1 (0.75) kW 3G3JV-A4007

1.5 (1.5) kW 3G3JV-A4015

2.2 (2.2) kW 3G3JV-A4022

3.7 (3.7) kW 3G3JV-A4037

Note 1. The figures in parentheses indicate typical motor capacities in Japan.

Note 2. It is not possible to connect a Braking Resistor or Braking Unit to a 3G3JV-series Inverter.

Select an Inverter from another series if the application requires braking control.

H International Standards (EC Directives and UL/cUL Standards)

The 3G3JV Inverter meets the EC Directives and UL/cUL standard requirements for worldwide use.

Classification Applicable standard

EC Directives

UL/cUL UL508C

1-2

EMC Directive EN50081-2 and EN5008-2 Low-voltage Directive prEN50178

Page 22

Overview Chapter 1

H Versatile Easy-to-use Functions

• Incorporates the functions and operability ensured by the conventional 3G3EV Series.

• Easy to initialize and operate with the FREQ adjuster on the Digital Operator.

• Ease of maintenance. The cooling fan is easily replaceable. The life of the cooling fan can be pro-

longed by turning on the cooling fan only when the Inverter is in operation.

H Suppression of Harmonics

Connects to DC reactors, thus suppressing harmonics more effectively than conventional AC reactors.

Further improvement in the suppression of harmonics is possible with the combined use of the DC and AC reactors.

1-3

Page 23

Overview Chapter 1

1-2 Nomenclature

H Panel

Top protection cover

Mounting holes

Terminal block

(Two)

Digital Operator

Terminal block

U-shaped cutouts (Two)

ALARM display

RUN indicator

Optional cover

Front cover

Front cover mounting screw

Bottom protection cover

Note 1. The front cover functions as a terminal cover. The Digital Operator Unit cannot be removed.

Note 2. Instead of mounting holes, each of the following models has two U-shaped cutouts lo-

cated diagonally. 3G3JV-A2001 (0.1 kW), 3G3JV-A2002 (0.25 kW), 3G3JV-A2004 (0.55 kW), and 3G3JV-A2007 (1.1 kW) 3G3JV-AB001 (0.1 kW), 3G3JV-AB002 (0.25 kW), and 3G3JV-AB004 (0.55 kW)

1-4

Page 24

Overview Chapter 1

H Digital Operator

Indicators

Data display

(Setting/Monitor item indicators)

Keys

Appearance Name Function

Data display Displays relevant data items, such as frequency reference,

output frequency, and parameter set values.

FREQ adjuster Sets the frequency reference within a range between 0 Hz

and the maximum frequency.

FREF indicator The frequency reference can be monitored or set while this

indicator is lit.

FOUT indicator The output frequency of the Inverter can be monitored

while this indicator is lit.

IOUT indicator The output current of the Inverter can be monitored while

this indicator is lit.

MNTR indicator The values set in U01 through U10 are monitored while

this indicator is lit.

F/R indicator The direction of rotation can be selected while this

indicator is lit when operating the Inverter with the RUN Key.

LO/RE indicator The operation of the Inverter through the Digital Operator

or according to the set parameters is selectable while this indicator is lit.

FREQ adjuster

Note This status of this indicator can be only monitored

while the Inverter is in operation. Any RUN command input is ignored while this indicator is lit.

PRGM indicator The parameters in n01 through n79 can be set or

monitored while this indicator is lit.

Note While the Inverter is in operation, the parameters can

be only monitored and only some parameters can be changed. Any RUN command input is ignored while this indicator is lit.

Mode Key Switches the setting and monitor item indicators in

sequence.

Parameter being set will be canceled if this key is pressed before entering the setting.

Increment Key Increases multi-function monitor numbers, parameter

numbers, and parameter set values.

Decrement Key Decreases multi-function monitor numbers, parameter

numbers, and parameter set values.

1-5

Page 25

Overview Chapter 1

Appearance FunctionName

Enter Key Enters multi-function monitor numbers, parameter

numbers, and internal data values after they are set or changed.

RUN Key Starts the Inverter running when the 3G3JV is in operation

with the Digital Operator.

STOP/RESET Key Stops the Inverter unless parameter n06 is set to disable

the STOP Key. Functions as a Reset Key when an Inverter error occurs. (See note.)

Note For safety reasons, the reset will not work while a RUN command (forward or reverse) is in effect.

Wait until the RUN command is OFF before resetting the Inverter.

1-6

Page 26

Design

2-1 Installation

2-2 Wiring

Chapter 2

Page 27

g(g)

Design Chapter 2

2-1 Installation

2-1-1 Dimensions

D 3G3JV-A2001 to 3G3JV-A2007 (0.1 to 0.75 kW) 3-phase 200-V AC Input

3G3JV-AB001 to 3G3JV-AB004 (0.1 to 0.4 kW) Single-phase 200-V AC Input

Rated voltage Model 3G3JV-

3-phase 200 V AC

Single-phase 200 V AC

A2001 70 10 3 Approx. 0.5 A2002 70 10 3 Approx. 0.5 A2004 102 42 5 Approx. 0.8 A2007 122 62 5 Approx. 0.9 AB001 70 10 3 Approx. 0.5 AB002 70 10 3 Approx. 0.5 AB004 112 42 5 Approx. 0.9

Dimensions (mm)

D D1 t

Weight (kg)

2-2

Page 28

g(g)

Design Chapter 2

D 3G3JV-A2015 to 3G3JV-A2022 (1.5 to 2.2 kW) 3-phase 200-V AC Input

3G3JV-AB007 to 3G3JV-AB015 (0.75 to 1.5 kW) Single-phase 200-V AC Input 3G3JV-A4002 to 3G3JV-A4022 (0.2 to 2.2 kW) 3-phase 400-V AC Input

Two, 5-dia. holes

Rated voltage Model 3G3JV-

3-phase 200 V AC

Single-phase 200 V AC

3-phase 400 V AC

A2015 129 64 Approx. 1.3 A2022 154 64 Approx. 1.5 AB007 129 64 Approx. 1.5 AB015 154 64 Approx. 1.5 A4002 81 16 Approx. 1.0 A4004 99 34 Approx. 1.1 A4007 129 64 Approx. 1.5 A4015 154 64 Approx. 1.5 A4022 154 64 Approx. 1.5

Dimensions (mm)

D D1

Weight (kg)

2-3

Page 29

g(g)

Design Chapter 2

D 3G3JV-A2037 (3.7 kW) 3-phase 200-V AC Input

3G3JV-A4037 (3.7 kW) 3-phase 400-V AC Input

Two, 5-dia. holes

118

128

Rated voltage Model 3G3JV-

3-phase 200 V AC A2037 161 71 Approx. 2.1 3-phase 400 V AC A4037 161 71 Approx. 2.1

128

140

8.5

Dimensions (mm)

D D1

Weight (kg)

2-1-2 Installation Conditions

WARNING Provide an appropriate stopping device on the machine side to secure safety. (A

holding brake is not a stopping device for securing safety.) Not doing so may result in injury.

WARNING Provide an external emergency stopping device that allows an instantaneous stop of

operation and power interruption. Not doing so may result in injury.

Caution Be sure to install the product in the correct direction and provide specified clear-

ances between the Inverter and control panel or with other devices. Not doing so may result in fire or malfunction.

Caution Do not allow foreign objects to enter inside the product. Doing so may result in fire or

malfunction.

Caution Do not apply any strong impact. Doing so may result in damage to the product or

malfunction.

2-4

Page 30

Design Chapter 2

H Installation Direction and Dimensions

• Install the Inverter under the following conditions.

Ambient temperature for operation (panel-mounting): –10°C to 50°C

Humidity: 95% or less (no condensation)

• Install the Inverter in a clean location free from oil mist and dust. Alternatively, install it in a totally enclosed panel that is completely protected from floating dust.

• When installing or operating the Inverter, always take special care so that metal powder, oil, water, or other foreign matter does not get into the Inverter.

• Do not install the Inverter on inflammable material such as wood.

H Direction

• Install the Inverter on a vertical surface so that the characters on the nameplate are oriented upward.

H Dimensions

• When installing the Inverter, always provide the following clearances to allow normal heat dissipation from the Inverter.

W = 30 mm min.

Inverter

100 mm min. Air

SideInverter Inverter

100 mm min. Air

H Ambient Temperature Control

• To enhance operation reliability, the Inverter should be installed in an environment free from extreme temperature changes.

• If the Inverter is installed in an enclosed environment such as a box, use a cooling fan or air conditioner to maintain the internal air temperature below 50°C. The life of the built-in electrolytic capacitors of the Inverter is prolonged by maintaining the internal air temperature as low as possible.

• The surface temperature of the Inverter may rise approximately 30°C higher than the ambient temperature. Be sure to keep away equipment and wires from the Inverter as far as possible if the equipment and wires are easily influenced by heat.

2-5

Page 31

Design Chapter 2

H Protecting Inverter from Foreign Matter during Installation

• Place a cover over the Inverter during installation to shield it from metal power produced by drilling. Upon completion of installation, always remove the cover from the Inverter. Otherwise, ventilation will be affected, causing the Inverter to overheat.

2-6

Page 32

Design Chapter 2

2-2 Wiring

WARNING Wiring must be performed only after confirming that the power supply has been

turned OFF. Not doing so may result in electrical shock.

WARNING Wiring must be performed by authorized personnel. Not doing so may result in

electrical shock or fire.

WARNING Be sure to confirm operation only after wiring the emergency stop circuit. Not doing

so may result in injury.

WARNING Always connect the ground terminals to a ground of 100 Ω or less for the 200-V AC

class, or 10 Ω or less for the 400-V AC class. Not connecting to a proper ground may result in electrical shock.

Caution Install external breakers and take other safety measures against short-circuiting in

external wiring. Not doing so may result in fire.

Caution Confirm that the rated input voltage of the Inverter is the same as the AC power sup-

ply voltage. An incorrect power supply may result in fire, injury, or malfunction.

Caution Connect the Braking Resistor and Braking Resistor Unit as specified in the manual.

Not doing so may result in fire.

Caution Be sure to wire correctly and securely. Not doing so may result in injury or damage to

the product.

Caution Be sure to firmly tighten the screws on the terminal block. Not doing so may result in

fire, injury, or damage to the product.

Caution Do not connect an AC power to the U, V, or W output. Doing so may result in damage

to the product or malfunction.

2-7

Page 33

Design Chapter 2

2-2-1 Removing and Mounting the Covers

It is necessary to remove the front cover, optional cover, top protection cover, and the bottom protection cover from the Inverter to wire the terminal block. Follow the instructions below to remove the covers from the Inverter. To mount the covers, take the opposite steps.

H Removing the Front Cover

• Loosen the front cover mounting screws with a screwdriver.

• Press the left and right sides of the front cover in the arrow 1 directions and lift the bottom of the cover in

the arrow 2 direction to remove the front cover as shown in the following illustration.

H Removing the Top and Bottom Protection Covers and Optional Cover

D Removing the Top and Bottom Protection Covers

• After removing the front cover, pull the top and bottom protection covers in the arrow 1 directions.

2-8

Page 34

Design Chapter 2

D Removing the Optional Cover

• After removing the front cover, lift the optional cover in the arrow 2 direction based on position A as a fulcrum.

Position A

Note The front cover functions as a terminal cover. The Digital Operator cannot be removed.

2-2-2 Terminal Block

Before wiring the terminal block, be sure to remove the front cover, top protection cover, and the bottom protection cover.

H Position of Terminal Block

Ground terminal

Main circuit input terminals

Control circuit terminals

Main circuit output terminals

Ground terminal

2-9

Page 35

Design Chapter 2

H Arrangement of Control Circuit Terminals

H Arrangement of Main Circuit Terminals

D 3G3JV-A2001 to 3G3JV-A2007

3G3JV-AB001 to 3G3JV-AB004

Main Circuit Input Terminals (Upper Side)

Main Circuit Output Terminals (Lower Side)

D 3G3JV-A2015 to 3G3JV-A2037

3G3JV-AB007 to 3G3JV-AB015 3G3JV-A4002 to 3G3JV-A4037

Main Circuit Input Terminals (Upper Side)

Main Circuit Output Terminals (Lower Side)

2-10

Page 36

terminals

3G3JV-A4j: 3-phase 380 to 460 V AC 3G3JV-ABj: 3-ph

200 to 240 V AC

+1 and –:

(Terminal +1 is a positive terminal.)

external power supply is

PNP

(p p 0 )

Design Chapter 2

H Main Circuit Terminals

Symbol Name Description

R/L1

S/L2

T/L3

U/T1

V/T2

W/T3

–

Power supply input

Motor output terminals 3-phase power supply output for driving motors.

Connection terminals +1 and +2:

reactor connection

terminals

– DC power supply input terminals

Ground terminal Be sure to ground the terminal under the following conditions.

3G3JV-A2j: 3-phase 200 to 230 V AC

3G3JV-ABj: Single-phase 200 to 240 V AC

Note Connect single-phase input to terminals R/L1 and S/L2.

3G3JV-A2j: 3-phase 200 to 230 V AC

3G3JV-A4j: 3-phase 380 to 460 V AC Connect the DC reactor for suppressing harmonics to terminals +1

and +2.

When driving the Inverter with DC power, input the DC power to terminals +1 and –.

3G3JV-A2j: Ground at a resistance of 100 Ω or less.

3G3JV-ABj: Ground at a resistance of 100 Ω or less.

3G3JV-A4j: Ground at a resistance of 10 Ω or less, and connect to the power supply’s neutral phase to conform to EC Directives.

Note Be sure to connect the ground terminal directly to the

ase

motor frame ground.

Note The maximum output voltage corresponds to the power supply input voltage of the Inverter.

H Control Circuit Terminals

Symbol Name Function Signal level

Input

S1 Forward/Stop Forward at ON. Stops at

OFF.

S2 Multi-function input 1

(S2)

S3 Multi-function input 2

(S3)

S4 Multi-function input 3

(S4)

S5 Multi-function input 4

(S5)

SC Sequence input com-

mon

FS Frequency reference

power supply

FR Frequency reference in-

put

FC Frequency reference

common

Set by parameter n36 (Reverse/Stop)

Set by parameter n37 (Fault reset)

Set by parameter n38 (External fault: Normally open)

Set by parameter n39 (Multi-step reference 1)

Common for S1 through S5

DC power supply for frequency reference use

Input terminal for frequency reference use

Common for frequency reference use

Photocoupler 8 mA at 24 V DC

Note NPN is the default setting

for these terminals. Wire them by providing a common ground. No

required. To provide an external power supply and wire the terminals through a common positive line, however, set the SW7 to

and make sure tha the power supply is at 24 V DC ±10%.

20 mA at 12 V DC

0 to 10 V DC (input impedance: 20 kΩ)

2-11

Page 37

(g g)

30 C

Design Chapter 2

Symbol Signal levelFunctionName

Output

MA Multi-function contact

output (Normally open)

MB Multi-function contact

output (Normally closed)

MC Multi-function contact

output common

AM Analog monitor output Set by parameter n44

AC Analog monitor output

common

Note 1. Depending on the parameter settings, various functions can be selected for multi-function in-

puts and multi-function contacts outputs.

Note 2. Functions in parentheses are default settings.

H Selecting Input Method

• Switches SW7 and SW8, both of which are located above the control circuit terminals, are used for input method selection. Remove the front cover and optional cover to use these switches.

Set by parameter n40 (during running)

Common for MA and MB use

(Output frequency) Common for AM use

Relay output 1 A max. at 30 V DC 1 A max. at 250 V AC

2 mA max. at 0 to 10 V DC

Selector

Control circuit terminal block

2-12

Page 38

Design Chapter 2

D Selecting Sequence Input Method

• By using SW7, NPN or PNP input can be selected as shown below.

S1 to 5

24 V DC (±10%)

D Selecting Frequency Reference Input Method

• By using SW8, frequency reference voltage or current input can be selected. Parameter settings are required together with the selection of the frequency reference input method.

Frequency reference input

method

Voltage input V (OFF) Set value 2 Current input I (ON) Set value 3 or 4

SW8 setting Frequency reference selection

(parameter n03)

2-13

Page 39

Design Chapter 2

2-2-3 Standard Connections

DC reactor (optional)

Noise Filter

3-phase 200 V AC Single-phase 200 V AC (see note 1) 3-phase 400 V AC

Forward/Stop

Multi-function input 1 (S2)

Multi-function input 2 (S3)

Multi-function input 3 (S4)

Multi-function input 4 (S5)

Multi-function contact output NO

Common

Sequence input common

Frequency reference power supply 20 mA at +12 V

FREQ adjuster

(2 kΩ, 1/4 W min.)

Frequency reference input

Frequency reference common

Analog monitor output

Analog monitor output common

Note 1. Connect single-phase 200 V AC to terminals R/L1 and S/L2 of the 3G3JV-ABj.

Note 2. The braking resistor cannot be connected because no braking transistor is incorporated.

D Example of 3-wire Sequence Connections

Stop switch (NC)

RUN switch (NO)

Direction switch

RUN input (Operates with the stop switch and RUN switch closed.)

Stop input (Stops with the stop switch opened.)

Forward/Stop reference (Forward with the direction switch opened and reverse with the direction switch closed.)

Sequence input common

Note Set parameter n37 for 3-wire sequence input.

2-14

Page 40

Design Chapter 2

2-2-4 Wiring around the Main Circuit

H Wire Size, Terminal Screw, Screw Tightening Torque, and Molded-case

Circuit Breaker Capacities

• For the main circuit and ground, always use 600-V polyvinyl chloride (PVC) cables.

• If any cable is long and may cause voltage drops, increase the wire size according to the cable length.

D 3-phase 200-V AC Model

Model

3G3JV-

A2001

A2002

A2004

A2007

A2015

A2022

Terminal symbol Terminal

R/L1, S/L2, T/L3, –, +1, +2, U/T1, V/T2, W/T3

Screw

screw

M3.5 0.8 to 1.0 0.75 to 2 2 5

M3.5 0.8 to 1.0 0.75 to 2 2 10

M3.5 0.8 to 1.0 2 to 5.5 2 20

M3.5 0.8 to 1.0 2 to 5.5 3.5 20

tightening

torque

(NSm)

Wire size

(mm

)

Recomme nded wire

size

(mm

)

Molded-c

ase

circuit

breaker

capacity

(A)

A2037

R/L1, S/L2, T/L3, –, +1, +2, U/T1, V/T2, W/T3

M4 1.2 to 1.5 2 to 5.5 5.5 30

2-15

Page 41

Design Chapter 2

D Single-phase 200-V AC Model

Model

3G3JV-

AB001

AB002

AB004

AB007

AB015

Terminal symbol Terminal

R/L1, S/L2, T/L3, –, +1, +2, U/T1, V/T2, W/T3

D 3-phase 400-V AC Model

Terminal

screw

M3.5 0.8 to 1.0 0.75 to 2 2 5

M3.5 0.8 to 1.0 0.75 to 2 2 10

M3.5 0.8 to 1.0 2 to 5.5

torque

(NSm)

Wire size

(mm

)

Recomme nded wire

size

(mm

)

3.5

5.5

Circuit

breaker

capacity

(A)

Model

3G3JV-

A4002

A4004

A4007

A4015

A4022

A4037

Terminal symbol Terminal

R/L1, S/L2, T/L3, –, +1, +2, U/T1, V/T2, W/T3

Terminal

screw

M3.5 0.8 to 1.0 2 to 5.5 2 5

M3.5 0.8 to 1.0 2 to 5.5 2 10

M4 1.2 to 1.5 2 to 5.5 2 10

M4 1.2 to 1.5 2 to 5.5

torque

(NSm)

Wire size

(mm

)

Recomme nded wire

size (mm

3.5

)

Circuit

breaker

capacity

(A)

2-16

Page 42

Design Chapter 2

H Wiring on the Input Side of the Main Circuit

D Installing a Molded-case Circuit Breaker

Always connect the power input terminals (R/L1, S/L2, and T/L3) and power supply via a molded case circuit breaker (MCCB) suitable to the Inverter.

• Install one MCCB for every Inverter used.

• Choose an appropriate MCCB capacity according to the Circuit breaker capacity column in the table

on the previous page.

• For the MCCB’s time characteristics, be sure to consider the Inverter’s overload protection (one minute at 150% of the rated output current).

• If the MCCB is to be used in common among multiple Inverters, or other devices, set up a sequence such that the power supply will be turned off by a fault output, as shown in the following diagram.

Inverter

Power supply

3-phase/Single-phase 200 V AC 3-phase 400 V AC

Fault output (NC)

D Installing a Ground Fault Interrupter

Inverter outputs use high-speed switching, so high-frequency leakage current is generated.

In general, a leakage current of approximately 100 mA will occur for each Inverter (when the power cable is 1 m) and approximately 5 mA for each additional meter of power cable.

Therefore, at the power supply input area, use a special-purpose breaker for Inverters, which detects only the leakage current in the frequency range that is hazardous to humans and excludes high-frequency leakage current.

• For the special-purpose breaker for Inverters, choose a ground fault interrupter with a sensitivity amperage of at least 10 mA per Inverter.

• When using a general leakage breaker, choose a ground fault interrupter with a sensitivity amperage of 200 mA or more per Inverter and with an operating time of 0.1 s or more.

D Installing a Magnetic Contactor

If the power supply of the main circuit is to be shut off because of the sequence, a magnetic contactor can be used instead of a molded-case circuit breaker.

When a magnetic contactor is installed on the primary side of the main circuit to stop a load forcibly, however, the regenerative braking does not work and the load coasts to a stop.

2-17

Page 43

Design Chapter 2

• A load can be started and stopped by opening and closing the magnetic contactor on the primary side. Frequently opening and closing the magnetic contactor, however, may cause the Inverter to break down. In order not to shorten the service life of the Inverter’s internal relays and electrolytic capacitors, it is recommended that the magnetic contactor is used in this way no more than once every 30 minutes.

• When the Inverter is operated with the Digital Operator, automatic operation cannot be performed after recovery from a power interruption.

D Connecting Input Power Supply to the Terminal Block

Input power supply can be connected to any terminal on the terminal block because the phase sequence of input power supply is irrelevant to the phase sequence (R/L1, S/L2, and R/L3).

D Installing an AC Reactor

If the Inverter is connected to a large-capacity power transformer (660 kW or more) or the phase advance capacitor is switched, an excessive peak current may flow through the input power circuit, causing the converter unit to break down.

To prevent this, install an optional AC reactor on the input side of the Inverter.

This also improves the power factor on the power supply side.

D Installing a Surge Absorber

Always use a surge absorber or diode for the inductive loads near the Inverter. These inductive loads include magnetic contactors, electromagnetic relays, solenoid valves, solenoid, and magnetic brakes.

D Installing a Noise Filter on the Power Supply Side

The Inverter’s outputs uses high-speed switching, so noise may be transmitted from the Inverter to the power line and adversely effect other devices in the vicinity. It is recommended that a Noise Filter be installed at the Power Supply to minimize noise transmission. Noise will also be reduced from the power line to the Inverter.

Wiring Example 1

Input Noise Filters

Simple Input Noise Filter: 3G3EV-PLNFDj

Power supply

EMC-conforming Input Noise Filter: 3G3JV-PRSj

3G3JV

Noise Filter

SYSDRIVE

Programmable Controller

Note Use a Noise Filter designed for the Inverter. A general-purpose Noise Filter will be less effective

and may not reduce noise.

2-18

Page 44

Design Chapter 2

H Wiring on the Output Side of the Main Circuit

D Connecting the Terminal Block to the Load

Connect output terminals U/T1, V/T2, and W/T3 to motor lead wires U, V, and W.

Check that the motor rotates forward with the forward command. Switch over any two of the output terminals to each other and reconnect if the motor rotates in reverse with the forward command.

D Never Connect a Power Supply to Output Terminals

Never connect a power supply to output terminals U/T1, V/T2, or W/T3.

If voltage is applied to the output terminals, the internal circuit of the Inverter will be damaged.

D Never Short or Ground Output Terminals

If the output terminals are touched with bare hands or the output wires come into contact with the Inverter casing, an electric shock or grounding will occur. This is extremely hazardous.

Also, be careful not to short the output wires.

D Do not Use a Phase Advancing Capacitor or Noise Filter

Never connect a phase advance capacitor or LC/RC Noise Filter to the output circuit.

Doing so will result in damage to the Inverter or cause other parts to burn.

D Do not Use an Electromagnetic Switch of Magnetic Contactor

Do not connect an electromagnetic switch of magnetic contactor to the output circuit.

If a load is connected to the Inverter during running, an inrush current will actuate the overcurrent protective circuit in the Inverter.

D Installing a Thermal Relay

The Inverter has an electronic thermal protection function to protect the motor from overheating. If, however, more than one motor is operated with one inverter or a multi-polar motor is used, always install a thermal relay (THR) between the Inverter and the motor and set n33 to 2 (no thermal protection).

In this case, program the sequence so that the magnetic contactor on the input side of the main circuit is turned off by the contact of the thermal relay.

D Installing a Noise Filter on the Output Side

Connect a Noise Filter to the output side of the Inverter to reduce radio noise and induction noise.

Power supply

3G3JV

SYSDRIVE

3G3IV-PLF

Noise Filter

Signal line

Induction noise Radio noise

Controller

AM radio

2-19

Page 45

Design Chapter 2

Induction Noise: Electromagnetic induction generates noise on the signal line, causing the con-

troller to malfunction.

Radio Noise: Electromagnetic waves from the Inverter and cables cause the broadcasting ra-

dio receiver to make noise.

D Countermeasures against Induction Noise

As described previously, a Noise Filter can be used to prevent induction noise from being generated on the output side. Alternatively, cables can be routed through a grounded metal pipe to prevent induction noise. Keeping the metal pipe at least 30 cm away from the signal line considerably reduces induction noise.

Power supply

3G3JV

SYSDRIVE

Signal line

Metal pipe

30 cm min.

Controller

D Countermeasures against Radio Interference

Radio noise is generated from the Inverter as well as the input and output lines. To reduce radio noise, install Noise Filters on both input and output sides, and also install the Inverter in a totally enclosed steel box.

The cable between the Inverter and the motor should be as short as possible.

Steel box

Power supply

3G3JV

Metal pipe

Noise Filter

SYSDRIVE

Noise Filter

D Cable Length between Inverter and Motor

As the cable length between the Inverter and the motor is increased, the floating capacity between the Inverter outputs and the ground is increased proportionally. The increase in floating capacity at the Inverter outputs causes the high-frequency leakage current to increase, and this may adversely affect peripheral devices and the current detector in the Inverter’s output section. To prevent this from occurring, use a cable of no more than 100 meters between the Inverter and the motor. If the cable must be longer than 100 meters, take measures to reduce the floating capacity by not wiring in metallic ducts, by using separate cables for each phase, etc.

2-20

Page 46

Design Chapter 2

Also, adjust the carrier frequency (set in n46) according to the cable length between the Inverter and the motor, as shown in the following table.

Cable length 50 m or less 100 m or less More than 100 m Carrier frequency 10 kHz max. 5 kHz max. 2.5 kHz

Note Single-phase motors cannot be used.

The Inverter is not suited for the variable speed control of single-phase motors. The rotation direction of a single-phase motor is determined by the capacitor starting method or phase-splitting starting method to be applied when starting the motor. In the capacitor starting method, however, the capacitor may be damaged by a sudden electric discharge of the capacitor caused by the output of the Inverter. On the other hand, the starting coil may burn in the phase-splitting starting method because the centrifugal switch does not operate.

H Ground Wiring

• Always use the ground terminal with the following ground resistance: 200-V Inverter: 100 Ω or less 400-V Inverter: separate ground,10 Ω or less

• Do not share the ground wire with other devices such as welding machines or power tools.

• Always use a ground wire that complies with technical standards on electrical equipment and mini-

mize the length of the ground wire. Leakage current flows through the Inverter. Therefore, if the distance between the ground electrode and the ground terminal is too long, the potential on the ground terminal of the Inverter will become unstable.

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Page 47

Design Chapter 2

• When using more than one Inverter, be careful not to loop the ground wire.

H Countermeasures against Harmonics

With the continuing development of electronics, the generation of harmonics from industrial machines has been causing problems recently. The Ministry of International Trade and Industry provided some guidelines in September 1994 for the suppression of harmonics from electrical household appliances and electrical equipment in Japan. Since then, the problem has been drawing considerable attention. Refer to the following information for the definition of harmonics (i.e., harmonic currents with voltages) and countermeasures against the generation of harmonics from the Inverter.

D Harmonics

Definition

Harmonics consist of electric power produced from AC power and alternating at frequencies that are integral multiples of the frequency of the AC power.

2-22

Page 48

Design Chapter 2

The following frequencies are harmonics of a 60- or 50-Hz commercial power supply. Second harmonic: 120 (100) Hz Third harmonic: 180 (150) Hz

Second harmonic (120 Hz)

Basic frequency (60 Hz)

Third harmonic (180 Hz)

Problems Caused by Harmonics Generation

The waveform of the commercial power supply will be distorted if the commercial power supply contains excessive harmonics. Machines with such a commercial power supply will malfunction or generate excessive heat.

Basic frequency (60 Hz) Third harmonic (180 Hz)

Distorted current wave form

D Causes of Harmonics Generation

• Usually, electric machines have built-in circuitry that converts commercial AC power supply into DC power. Such AC power, however, contains harmonics due to the difference in current flow between DC and AC.

Obtaining DC from AC Using Rectifiers and Capacitors

DC voltage is obtained by converting AC voltage into a pulsating one-side voltage with rectifiers and smoothing the pulsating one-side voltage with capacitors. Such AC current, however, contains harmonics.

2-23

Page 49

Design Chapter 2

Inverter

The Inverter as well as normal electric machines has an input current containing harmonics because the Inverter converts AC into DC. The output current of the Inverter is comparatively high. Therefore, the ratio of harmonics in the output current of the Inverter is higher than that of any other electric machine.

Voltage

Time

Rectified

Voltage

Time

Smoothed

Voltage

A current flows into the capacitors. The current is different from the voltage in waveform.

Current

Time

2-24

Page 50

Design Chapter 2

D Countermeasures with Reactors against Harmonics Generation

DC/AC Reactors

The DC reactor and AC reactor suppress harmonics and currents that change suddenly and greatly.

The DC reactor suppresses harmonics better than the AC reactor. The DC reactor used with the AC reactor suppresses harmonics more effectively.

The input power factor of the Inverter is improved by suppressing the harmonics of the input current of the Inverter.

Connection

Connect the DC reactor to the internal DC power supply of the Inverter after shutting off the power supply to the Inverter and making sure that the charge indicator of the Inverter turns off.

Do not touch the internal circuitry of the Inverter in operation, otherwise an electric shock or burn injury may occur.

Wiring Method

• With DC Reactor

Power supply

3-phase 200 V AC Single-phase 200 V AC 3-phase 400 V AC

• With DC and AC Reactors

Power supply

3-phase 200 V AC Single-phase 200 V AC 3-phase 400 V AC

DC reactor (optional)

AC reactor (optional)

DC reactor (optional)

SYSDRIVE 3G3JV

2-25

Page 51

py y

Design Chapter 2

Reactor Effects

Harmonics are effectively suppressed when the DC reactor is used with the AC reactor as shown in the following table.

Harmonics

suppression

method

No reactor 65 41 8.5 7.7 4.3 3.1 2.6 1.8 AC reactor 38 14.5 7.4 3.4 3.2 1.9 1.7 1.3 DC reactor 30 13 8.4 5 4.7 3.2 3.0 2.2 DC and AC

reactors

5th har-

monic

28 9.1 7.2 4.1 3.2 2.4 1.6 1.4

7th har-

monic

Harmonic generation rate (%)

11th har-

monic

13th har-

monic

17th har-

monic

19th har-

monic

23rd har-

monic

2-2-5 Wiring Control Circuit Terminals

A control signal line must be 50 m maximum and separated from power lines. The frequency reference must be input into the Inverter through shielded, twisted-pair wires.

H Wiring of Control I/O Terminals

Wire each control I/O terminal under the following conditions.

D Wires and Tightening Torque

25th har-

monic

Multi-function Contact Output (MA, MB, and MC)

Terminal

screw size

M3 0.5 to 0.6

Tightening

torque NSm

Wire Wire size Recommend

ed wire size

Single wire 0.5 to 1.25

(20 to 16)

Stranded wire

0.5 to 1.25 (20 to 16)

0.75 (18) Cable with polyethylene

Cable

sheath

Sequential Input (S1 through S5 and SC) and Analog Monitor Output (AM or AC)

Terminal

screw size

M2 0.22 to 0.25

Tightening

torque NSm

Wire Wire size Recommend

ed wire size

Single wire 0.5 to 1.25

(20 to 16)

Stranded wire

0.5 to 0.75 (20 to 18)

0.75 (18) Cable with polyethylene

Cable

sheath

Frequency Reference Input (FR, FS, and FC)

Terminal

screw size

M2 0.22 to 0.25

Tightening

torque NSm

Wire Wire size Recommend

ed ire size

Single wire 0.5 to 1.25

(20 to 16)

Stranded wire

0.5 to 0.75 (20 to 18)

0.75 (18) Special cable with

Cable

polyethylene sheath and shield for measurement use

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Design Chapter 2

D Solderless Terminal Size

The use of solderless terminals for the control circuit terminals is recommended for the reliability and ease of connection.

Note Make sure that the wire size is 0.5 mm

1.0 dia.

2.6 dia.

when using the following solderless terminal.

Model: Phoenix Contact’s A1 0.5-8 WH

(Size: mm)

D Wiring Method

1. Loosen the terminal screws with a thin-slotted screwdriver.

2. Insert the wires from underneath the terminal block.

3. Tighten each terminal screw firmly to a torque specified in the previous tables.

Note 1. Always separate the control signal line from the main circuit cables and other power cables.

Note 2. Do not solder the wires to the control circuit terminals. The wires may not contact well with the

control circuit terminals if the wires are soldered.

Note 3. The end of each wire connected to the control circuit terminals must be stripped for approxi-

mately 5.5 mm.

Note 4. Connect the shield wire to the ground terminal of the 3G3JG. Do not connect the shield wire to

the device side being controlled.

Note 5. Be sure to insulate the shield wire with tape so that the shield wire will not come into contact

with other signal wires or equipment.

Thin-slotted screwdriver

Terminal block

Strip the end for approximately

5.5 mm if no solderless terminal is used.

Wire

Solderless terminal or wire without soldering.

Note Applying excessive torque may damage

the terminal block. If the tightening torque is insufficient, however, wires may disconnect.

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Design Chapter 2

2-2-6 Conforming to EC Directive

The following description provides the wiring method of the Inverter to meet DC Directive requirements. If the following requirements are not satisfied, the whole equipment incorporating the Inverter will need further confirmation.

H Standard Connection

D Main Circuit Terminals

MCCBs

3-phase 200 V AC Single-phase 200 V AC 3-phase 400 V AC

D Control Circuit Terminals

Forward/Stop

Multi-function input 1 (S2)

Multi-function input 2 (S3)

Multi-function input 3 (S4)

Multi-function input 4 (S5)

Sequence input common

Frequency reference power supply at +12 V

FREQ adjuster

Frequency reference input

Frequency reference common

Noise Filter

Clamp core

Multi-function contact output

Common

Analog-monitor output

Analog monitor output common

(2 kΩ, 1/4 W min.)

Note I/O signals can be connected to a single shielded cable.

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Design Chapter 2

D Wiring the Power Supply

Make sure that the Inverter and Noise Filter are grounded together.

• Always connect the power input terminals (R/L1, S/L2, and T/L3) and power supply via a dedicated Noise Filter.

• Reduce the length of the ground wire as much as possible.

• Locate the Noise Filter as close as possible to the Inverter. Make sure that the cable length between

the Noise Filter and the Inverter does not exceed 40 cm.

• The following Noise Filters are available.

3-phase 200-V AC Noise Filter

Inverter 3-phase 200-V AC Noise Filter (Rasmi)

Model 3G3JV- Model 3G3JV- Rated current (A)

A2001/A2002/A2004/A2007 PRS2010J 10 A2015/A2022 PRS2020J 16 A2037 PRS2030J 26

Single-phase 200-V AC Noise Filter

Inverter Single-phase 200-V Noise Filter (Rasmi)

Model 3G3JV- Model 3G3JV- Rated current (A)

AB001/AB002/AB004 PRS1010J 10 AB007/AB015 PRS1020J 20

3-phase 400-V AC Noise Filter

Inverter 3-phase 200-V AC Noise Filter (Rasmi)

Model 3G3JV- Model 3G3JV- Rated current (A)

A4002/A4004 PRS3005J 5 A4007/A4015/A4022 PRS3010J 10 A4037 PRS3020J 15

D Connecting a Motor to the Inverter

• When connecting a motor to the Inverter, be sure to use a cable with a braided shield.

• Reduce the length of the cable as short as possible and ground the shield on the Inverter side as well

as the motor side. Make sure that the cable length between the Inverter and the motor does not exceed 20 m. Furthermore, connect a clamp core (Clamp Filter) close to the output terminals of the Inverter.

Product Model Manufacturer

Clamp Filter 2CAT3035-1330 TDK

D Wiring a Control Cable

• Be sure to connect a cable with a braided shield to the control circuit terminals.

• Ground the shield on the Inverter side only.

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Design Chapter 2

D Grounding the Shield

In order to ground the shield securely, it is recommended that a cable clamp be directly connected to the ground plate as shown below.

Ground plate

Shield

Cable clamp

Cable

H LVD Conformance

• Always connect the Inverter and power supply via a molded case circuit breaker (MCCB) suitable to the Inverter for protecting the Inverter from damage that may result from short-circuiting.

• Use one MCCB per Inverter.

• Select a suitable MCCB from the following table.

• With 400-V Inverters, it is necessary to ground to the power supply’s neutral phase.

200-V Models

Inverter MCCB (Mitsubishi Electric)

Model 3G3JV- Type Rated current (A)

A2001 A2002 5 A2004 5 A2007 10 A2015 20 A2022 20 A2037 30 AB001 AB002 5 AB004 10 AB007 20 AB015 20

NF30

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Design Chapter 2

400-V Models

Inverter MCCB (Mitsubishi Electric)

Model 3G3JV- Type Rated current (A)

A4002 A4004 5 A4007 5 A4015 10 A4022 10 A4037 20

To satisfy LVD (Low-voltage Directive) requirements, the system must be protected by a molded case circuit breaker (MCCB) when a short-circuit occurs. A single MCCB may be shared with more than one Inverter or with other machines. In that case, however, take some appropriate measures so that the MCCB will protect all the Inverters from the occurrence of any single short-circuit.

The frequency reference power supply (FS) of the Inverter is of basic insulation construction. When connecting the Inverter to peripheral devices, be sure to increase the degree of insulation.

NF30

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Chapter 3

Preparing for Operation and Monitoring

3-1 Nomenclature

3-2 Parameter Copy and Verify Function

Page 58

Preparing for Operation and Monitoring Chapter 3

3-1 Nomenclature

3-1-1 Part Names and Functions

Data display

Keys

Appearance Name Function

Data display Displays relevant data items, such as frequency reference,

output frequency, and parameter set values.

FREQ adjuster Sets the frequency reference within a range between 0 Hz

and the maximum frequency.

FREF indicator The frequency reference can be monitored or set while this

indicator is lit.

FOUT indicator The output frequency of the Inverter can be monitored

while this indicator is lit.

IOUT indicator The output current of the Inverter can be monitored while

this indicator is lit.

MNTR indicator The values set in U01 through U10 are monitored while

this indicator is lit.

F/R indicator The direction of rotation can be selected while this

indicator is lit, when operating the Inverter with the RUN Key.

LO/RE indicator The operation of the Inverter through the Digital Operator

or according to the parameters set is selectable while this indicator is lit.

Indicators Setting/Monitor item indicators

FREQ adjuster

3-2

Note This status of this indicator can be only monitored

while the Inverter is in operation. Any RUN command input is ignored while this indicator is lit.

PRGM indicator The parameters in n01 through n79 can be set or

monitored while this indicator is lit.

Note While the Inverter is in operation, the parameters can

be only monitored and only some parameters can be changed. The RUN command input is ignored while this indicator is lit.

Mode Key Switches the setting and monitor item indicators in

sequence.

Parameter setting being made is canceled if this key is pressed before entering the setting.

Increment Key Increases multi-function monitor numbers, parameter

numbers, and parameter set values.

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Drive Mode while operation is

stopped

Preparing for Operation and Monitoring Chapter 3

Appearance FunctionName

Decrement Key Decreases multi-function monitor numbers, parameter

numbers, and parameter set values.

Enter Key Enters multi-function monitor numbers, parameter

numbers, and internal data values after they are set or changed.

RUN Key Starts the Inverter running when the 3G3FV is in operation

with the Digital Operator.

STOP/RESET Key Stops the Inverter unless n06 is set to disable the STOP

Key. Functions as a Reset Key when an Inverter error occurs. (See note.)

Note For safety’s reasons, the reset will not work while a RUN command (forward or reverse) is in ef-

fect. Wait until the RUN command is OFF before resetting the Inverter.

3-1-2 Drive Mode and Program Mode

The Inverter has two states: Drive Mode and Program Mode. Drive Mode is for receiving operation commands, and Program Mode is for performing operations such as changing settings. With the default settings, Program Mode is set to not receive operation commands to prevent the Servomotor from rotating if an operation command is mistakenly turned ON while parameters are being changed, such as for trial operation. Depending on the usage conditions, however, the user may want to have operation commands always received even while parameters are being changed. In that case, make the following changes to the settings.

H Determining Modes with Indicators

You can find out from the indicators on the Digital Operator if Drive Mode or Program Mode is being used. When the indicator is lit green, Drive Mode is being used.

When the indicator is lit red, Drive Mode is being used if the Servomotor is operating, and Program Mode is used if the Servomotor is stopped. Therefore, operation will continue and the indicator will turn red if the mode is changed during operation, but once the Servomotor is stopped, operation will not be performed the next time the operation command is turned ON.

Indicators Indicator color Name Mode

FREF Green Frequency reference

monitor FOUT Green Output frequency monitor IOUT Green Output current monitor MNTR Green Multi-function monitor F/R Green Operator RUN command

forward/reverse selection LO/RE Red Local/remote selection

PRGM Red Parameter No./data

D Setting Parameters

If the following setting is made, operation commands will always be received in Drive Mode even if the indicator is lit red.

Drive Mode during operation

stopped

Drive Mode during operation

Program Mode (operation stopped)

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Set n01 (Parameter Write-prohibit Selection/Parameter Initialization) to 5.

Note 1. The default setting for n01 is 1.

Note 2. As an exception, operation commands are not received when n01 itself is being changed.

Note 3. Some parameters can be changed during operation and other parameters cannot. This is not

affected by the setting of n01. If the setting for n01 has been changed to 5, operation commands will be received even while parameters are being changed, such as during testing. Sufficiently check safety before operation.

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3-1-3 Outline of Operation

H Selecting Indicators

Whenever the Mode Key is pressed, an indicator is lit in sequence beginning with the FREF indicator. The data display indicates the item corresponding to the indicator selected. The FOUT or IOUT indicator will be lit by turning the Inverter on again if the Inverter is turned off while the FOUT or IOUT indicator is lit. The FREF indicator will be lit by turning the Inverter on again if the Inverter is turned off while an indicator other than the FOUR or IOUT indicator is lit.

Power On

FREF (Frequency Reference)

Monitors and sets the frequency reference.

FOUT (Output Frequency)

Monitors the output frequency. Note This indicator will be lit by turning the Inverter on again if the Inverter

is turned off while this indicator is lit.

IOUT (Output Current)

Monitors the output current. Note This indicator will be lit by turning the Inverter on again if the Inverter

is turned off while this indicator is lit.

MNTR (Multi-function Monitor)

Monitors the values set in U01 through U10.

F/R (Forward/Reverse Rotation)

Selects the direction of rotation.

LO/RE (Local/Remote)

Selects the operation of the Inverter through the Digital Operator or according to the parameters.

PRGM (Parameter Setting)

Monitors or sets the values in n01 through n79.

The FREF indicator is lit again.

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H Example of Frequency Reference Settings

Key sequence Indicator Display

example

Power On Note If the FREF indicator has not been lit, press the

Mode Key repeatedly until the FREF indicator is lit.

Use the Increment or Decrement Key to set the frequency reference.

The data display will flash while the frequency reference is set. (see note 1)

Press the Enter Key so that the set value will be entered and the data display will be lit. (see note 1)

Explanation

Note 1. The Enter Key need not be pressed when performing the setting for n08. The frequency refer-

ence will change when the set value is changed with the Increment or Decrement Key while the data display is continuously lit.

Note 2. The frequency reference can be set in either of the following cases.

S Parameter n03 for frequency reference selection is set to 1 (i.e., frequency reference 1 is en-

abled) and the Inverter is in remote mode.

S Parameter n07 for frequency selection in local mode is set to 1 (i.e., the Digital Operator is en-

abled) and the Inverter is in local mode.

S Frequency references 2 through 8 are input for multi-step speed operation.

Note 3. The frequency reference can be changed, even during operation.

H Example of Multi-function Display

Key sequence Indicator Display Explanation

Power On

Press the Mode Key repeatedly until the MNTR indicator is lit.

U01 will be displayed. Use the Increment or Decrement Key to select the

monitor item to be displayed. Press the Enter Key so that the data of the selected

monitor item will be displayed. The monitor number display will appear again by

pressing the Mode Key.

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D Status Monitor

Item Display Display

unit

U01 Frequency

reference U02 Output frequency Hz Monitors the output frequency. (Same as FOUT) U03 Output current A Monitors the output current. (Same as IOUT) U04 Output voltage V Monitors the internal output voltage reference value of the

U05 DC bus voltage V Monitors the DC voltage of the internal main circuit of the

U06 Input terminal ---

status

U07 Output terminal ---

status

Hz Monitors the frequency reference. (Same as FREF)

Inverter.

Inverter. Shows the ON/OFF status of inputs.

Terminal S1: Forward/Stop Terminal S2: Multi-function input 1 (S2) Terminal S3: Multi-function input 2 (S3)

Not used

Shows the ON/OFF status of outputs.

Terminal S4: Multi-function input 3 (S4) Terminal S5: Multi-function input 4 (S5)

Function

: Input ON : No input

: Closed : Open

Not used

U09 Error log (most

recent one)

U10 Software No. --- OMRON use only.

---

Displays the latest error.

Error

Terminal MA: Multi-function contact output

H Example of Forward/Reverse Selection Settings

Key sequence Indicator Display

example

Press the Mode Key repeatedly until the F/R indicator is lit.

The present setting will be displayed.

For: Forward; rEv: Reverse

Use the Increment or Decrement Key to change the direction of motor rotation. The direction of motor rotation selected will be enabled when the display changes after the key is pressed.

Explanation

Note The direction of motor rotation can be changed, even during operation.

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H Example of Local/Remote Selection Settings

Key sequence Indicator Display

example

Press the Mode Key repeatedly until the LO/RE indicator is lit.

The present setting will be displayed.

rE: Remote; Lo: Local

Use the Increment or Decrement Key to set the Inverter to local or remote mode. The selection will be enabled when the display changes after the key is pressed.

Explanation

Note 1. Local or remote selection is possible only when the Inverter is not in operation. The present

setting can be monitored when the Inverter is in operation.

Note 2. Local or remote settings in multi-function input terminals can be changed through the multi-

function input terminals only.

Note 3. Any RUN command input will be ignored while the LO/RE indicator is lit. To enable a RUN

command, first turn the RUN command OFF and then press the Mode Key to display an item

that has a green indicator (FREF to MNTR). Then input the RUN command again.

H Example of Parameter Settings

Key sequence Indicator Display

example

In approximately 1 s.

Cancels set data.

In approximately 1 s.

Explanation

Power On

Press the Mode Key repeatedly until the PRGM indicator is lit.

Use the Increment or Decrement Key to set the parameter number.

Press the Enter Key. The data of the selected parameter number will be displayed.

Use the Increment or Decrement Key to set the data. At that time the display will flash.

Press the Enter Key so that the set value will be entered and the data display will be lit. (see note 1)

The parameter number will be displayed.

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Note 1. To cancel the set value, press the Mode Key instead. The parameter number will be dis-

played.

Note 2. There are parameters that cannot be changed while the Inverter is in operation. Refer to the

list of parameters. When attempting to change such parameters, the data display will not

change by pressing the Increment or Decrement Key.

Note 3. Any RUN command input will be ignored while the Parameter Setting (PRGM) indicator is lit.

To enable a RUN command, first turn the RUN command OFF and then press the Mode Key

to display an item that has a green indicator (FREF to MNTR). Then input the RUN command

again.

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3-2 Parameter Copy and Verify Function

The 3G3IV-PJVOP140 and 3G3IV-PJVOP146 Digital Operators include EEPROM memory. All the parameters for the Inverter, the Inverter capacity, and the software version are saved in this memory. If the memory is used, the parameter settings for the Inverter can be copied to other Inverters. Note: Copying can be performed between Inverters with the same power supply speci-

fications. Some parameters, however, may not be copied.

3-2-1 Parameters for the Parameter Copy and Verify Function

The following table shows the parameters used when reading, copying (i.e., writing), and verifying parameters.

Parameter

No.

n76 014C Paramet

No.

Name Description Setting

er Copy and Verify Function

Selects the function for copying parameters.

Rdy: Ready to accept the next command.

Red: Read the Inverter parameters.

Cpy: Copy the parameters to the Inverter.

VFy: Verify the Inverter parameters.

Va: Verify the Inverter capacity display.

Sno: Verify the software number.

range

rdy to Sno

Setting

unit

--- rdy 

Default

setting

operation

Writing

during

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H Display Transitions

Reading

Writing

Verifying

Inverter capacity

Software No.

Reading completed

Writing completed

Verifying completed

Note The following table shows the display for the Inverter capacity (vA).

Voltage class

2: Three-phase 200 V b: Single-phase 200 V 4: Three-phase 400 V

Maximum applicable Servomotor capacity

0.1: 0.1 kW (0.1 kW)

0.2: 0.2 kW (0.25 kW/0.37 kW)

0.4: 0.4 kW (0.55 kW)

0.7: 0.75 kW (1.1 kW)

1.5: 1.5 kW (1.5 kW)

2.2: 2.2 kW (2.2 kW)

3.7: 3.7 kW (3.7 kW)

Note The figures in parentheses indicate typical motor capacities in Japan.

3-2-2 Procedure for Copying Parameters

• Use the following procedure to copy parameters to another Inverter.

1. Set the Parameter Write-prohibit Selection/Parameter Initialization (n01) to 1.

2. Set the Parameter Read Prohibit Selection (n77) to 1 to enable reading.

3. Read the Inverter parameter settings to the Digital Operator memory (rEd).

4. Turn OFF the Inverter power supply, and remove the Digital Operator.

5. Install the Digital Operator on the Inverter you want to copy to, and then turn ON the power supply.

6. Copy the contents of the memory in the Digital Operator to the Inverter (CPy).

7. Verify and check that writing was performed correctly (vFy).

• Parameters can be copied only between Inverters that have the same power supply specifications and control mode (i.e., V/f control or vector control). For example, copying cannot be performed from a 200-V-class Inverter to a 400-V-class Inverter or from a V/f-control-mode Inverter to a vector-controlmode Inverter.

Note The saved hold output frequency and the following parameters will not be copied.

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n76: Parameter Copy and Verify Function

n77: Parameter Read Prohibit Selection

n78: Error Log

n79: Software Number

H Setting the Parameter Write-prohibit Selection/Parameter Initialization

(n01)

Writing to the Parameter Copy and Verify Function (n76) cannot be performed with the default setting. To write to n76, set the Parameter Write-prohibit Selection/Parameter Initialization (n01) to 1. (The procedure described here is not required if n01 is already set to 1.)

Parameter

No.

n01 0101 Parameter

No.

Name Description Setting

Write-prohibit Selection/Parameter Initialization

This parameter is used to prohibit writing to parameters to be written, to enable setting parameters, or to change the monitor range of parameters.

0: Enables setting or monitoring

parameter n01. Parameters n02 to n79 can be monitored only.

1: Enables setting parameters n01

to n49.

5: Enables continuous operation.

(Parameters n01 to n79 can be set or monitored.)

6: Clears the error log.

8: Initializes parameters to the de-

fault values for 2-wire sequence.

9: Initializes parameters to the de-

fault values for 3-wire sequence.

Note With settings 0 or 1, operation

commands are ignored in Program Mode. (Refer to 3-1-2

Drive Mode and Program Mode.) Normally, use a setting

of 0 or 1.

Setting

range

0 to 9 1 1 

unit

Default

setting

operation

Writing

during

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D Procedure for Setting the Parameter Write-prohibit Selection/Parameter

Initialization (n01)

Key sequence Indicators Display

example

In approximately 1 s.

Power ON

Press the Mode Key until the PRGM indicator lights. Check that n01 is shown on the data display.

Press the Enter Key. The setting for the specified parameter will be displayed.

Press the Increment Key to display 1. (The display will flash.)

Press the Enter Key to enter the setting. The display will stop flashing.

The parameter number will be displayed.

Explanation

H Reading Parameter Settings (rEd)

The parameter settings saved in the Inverter can be read to the memory of the Digital Operator by setting the Parameter Copy and Verify Function (n76) to “rEd.”

D Procedure for Reading Parameter Settings

Key sequence Indicators Display

example

Check that PRGM is lit. (Press the Mode Key if any other indicator is lit.)

Use the Increment or Decrement Key to display n76.

Explanation

(After completion)

Press the Enter Key. “rdy” will flash.

Press the Increment Key to display “rEd”.

Press the Enter Key. The Inverter parameters will be read to the memory in the Digital Operator. During this time, the display will flash.

When reading has been completed, “End” will be displayed.

Press the Mode Key or the Enter Key to return to the parameter number display.

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H Copying the Memory Contents of the Digital Operator to the Inverter

(CPy)

• The parameter settings saved in the memory of the Digital Operator can be written to the Inverter by setting the Parameter Copy and Verify Function (n76) to “Cpy.”

• When reading from the Digital Operator has been completed, turn OFF the Inverter power supply and remove the Digital Operator.

• Install the Digital Operator on the Inverter to which the parameters are to be written and turn ON the power supply.

• In the Parameter Write-prohibit Selection/Parameter Initialization (n01) is not set to 1 for that Inverter, use the same procedure as described above to set it to 1.

Note Parameters can be copied only between Inverters with the same power supply specifications.

D Procedure for Writing the Memory Contents of the Digital Operator

Key sequence Indicators Display

example

(After completion)

Power ON

Press the Mode Key until the PRGM indicator lights.

Use the Increment or Decrement Key to display n76.

Press the Enter Key. “rdy” will be displayed.

Press the Increment Key to display “Cpy.”

Press the Enter Key. The parameters in the memory of the Digital Operation will be written to the Inverter. During this time, the display will flash.

When writing has been completed, “End” will be displayed.

Press the Mode Key or the Enter Key to return to the parameter number display.

Explanation

Note 1. A setting range check and consistency check will be performed for the parameters after the

memory contents of the Digital Operator have been written to the Inverter. If there is one or more parameters with an error, all parameters will be returned to their previous settings and none of them will be changed. If there is a setting range error, the number of the parameter that caused the error will flash. If there is a consistency error, oPj (j as a number) will flash.

Note 2. The saved hold output frequency and the following parameters cannot be copied.

n76: Parameter Copy and Verify Function n77: Parameter Read Prohibit Selection n78: Error Log n79: Software Number

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H Verifying Parameters (vFy)

The parameter settings saved in the memory of the Digital Operator can be verified with the parameter settings in the Inverter by setting the Parameter Copy and Verify Function (n76) to “vFy.”

Note Just as with copying, parameters can be verified only for Inverters that have the same power sup-

ply specifications.

D Procedure for Verifying Parameters

Key sequence Indicators Display

example

(After completion)

Explanation

Power ON

Press the Mode Key until the PRGM indicator lights.

Use the Increment or Decrement Key to display n76.

Press the Enter Key. “rdy” will be displayed.

Press the Increment Key to display “vFy.”

Press the Enter Key. The parameters will be verified. (During this time, the display will flash.)

If the settings of a parameter do not match, the parameter number of the inconsistent parameter will be flashed on the display.

The setting in the Inverter will be flashed first when the Enter Key is pressed.

When the Enter Key is pressed again, the setting in the Digital Operator will be flashed.

Verification will be continued when the Increment Key is pressed.

When the verification has been completed, “End” will be displayed.

Press the Mode Key or the Enter Key to return to the parameter number display.

Note 1. Verification will be cancelled and the display will change to “End” if the STOP/RESET Key is

pressed while the number of an inconsistent parameter is being displayed or the setting is being displayed. The display will then return to the number of the inconsistent parameter when the Mode Key or the Enter Key is pressed.

Note 2. The display will flash “vAE” if you attempt to verify parameters between Inverters that have

different capacities. To continue verifying anyway, press the Enter Key. To cancel verifying, press the STOP/RESET Key.

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3-2-3 Parameter Read Prohibit (Prohibiting Writing to Digital

Operator)

To protect the parameter settings saved in the memory of the Digital Operator, set the Parameter Read Prohibit Selection (n77) to 0 (read prohibited).

If an attempt is made to read parameter settings from the Inverter, “PrE” (protect error) will be displayed, and reading will not be possible. (Press the Mode Key to clear “PrE” from the display.)

Parameter

No.

n77 014D Parameter

No.

Name Description Setting

Used to prohibit writing Read Prohibit Selection

parameters. Use this parameter

to protect the contents of the

EEPROM memory in the Digital

Operator.

0: Reading prohibited for Inverter parameters (Data cannot be written to EEPROM.)

1: Reading possible for Inverter parameters (Data can be written to EEPROM.)

Setting

range

0, 1 1 0 

unit

Default

setting

operation

Writing

during

Note 1. It is not possible to write to the n77 parameter with the default setting. To enable writing to n77,

set the Parameter Write-prohibit Selection/Parameter Initialization (n01) to 1.

Note 2. This parameter is set in the Digital Operator. The setting for n77 will be 0 (read prohibited)

regardless of the Inverter setting if a Digital Operator that is set to prohibited reading is installed on another Inverter.

D Procedure for Setting Parameter Read Prohibit Selection

Key sequence Indicators Display

example

Power ON

Press the Mode Key until the PRGM indicator lights.

Use the Increment or Decrement Key to display n77.

Press the Enter Key. The present settings will be displayed.

Use the Increment or Decrement Key to set the data.

0: Reading prohibited for Inverter parameters (Data cannot be written to EEPROM.)

1: Reading possible for Inverter parameters (Data can be written to EEPROM.)

Press the Enter Key to enter the settings. The display will flash.

In approximately 1 s.

The parameter number will be displayed.

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Explanation

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3-2-4 Error Displays for the Parameter Copy and Verify

Function

This section describes the errors that may occur when reading, copying, or verifying parameters, and the remedies for those errors. The display will flash when any of these errors occurs.

Display Probable

cause

Protect error A read attempt was made with the

Read error The parameters were not read

Checksum error

No-data Error There are no parameters saved in the

Copy target error

Voltage error while copying

Capacity error An attempt was made to verify

Communications error

Name Remedy

Parameter Read Prohibit Selection (n77) set to 0 (reading prohibited).

correctly or a low voltage was detected in the main circuit when the data was being read.

A checksum error occurred for the parameters saved in the Digital Operator.

Digital Operator. An attempt was made to copy or verify

between Inverters with different voltage classes or control modes.

A low voltage in the main circuit was detected while data was being copied.

parameters between Inverters with different capacities.

A communications error occurred between the Inverter and the Digital Operator.

Check again whether data must be read, and if required, change the setting for n77 to 1 (reading possible), and then read the data again.

Check that the main circuit voltage is normal, and then read the data again.

Read the parameters to the Digital Operator again.

Read the parameters to the Digital Operator.

Check the voltage classes and control modes. (If either is different from that of the other Inverter, copying and verifying are not possible.) If an Inverter has a different control mode, change the control mode of the Inverter to be copied to or verified, and then copy or verify the parameters again.

Check that the main voltage is normal, and then copy the data again.

To continue verification, press the Enter Key. To cancel verification, press the STOP/RESET Key.

Check the connection between the Inverter and the Digital Operator. Make sure the connection is correct, and then repeat the operation.

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Test Run

4-1 Procedure for Test Run

4-2 Operation Example

Chapter 4

Page 75

Test Run

Chapter 4

WARNING

WARNING Do not remove the front cover, terminal covers, bottom cover, Operator, or optional

WARNING Do not operate the Operator or switches with wet hands. Doing so may result in

WARNING Do not touch the inside of the Inverter. Doing so may result in electrical shock.

WARNING Do not come close to the machine when using the error retry function because the

WARNING Do not come close to the machine immediately after resetting momentary power

Turn ON the input power supply only after mounting the front cover, terminal covers, bottom cover, Operator, and optional items. Not doing so may result in electrical shock.

items while the power is being supplied. Not doing so may result in electrical shock or damage to the product.

electrical shock.

machine may abruptly start when stopped by an alarm. Doing so may result in injury.

interruption to avoid an unexpected restart (if operation is set to be continued in the processing selection function after momentary power interruption is reset). Doing so may result in injury.

WARNING Provide a separate emergency stop switch because the STOP Key on the Operator

is valid only when function settings are performed. Not doing so may result in injury.

WARNING Be sure confirm that the RUN signal is turned OFF before turning ON the power

supply, resetting the alarm, or switching the LOCAL/REMOTE selector. Doing so while the RUN signal is turned ON may result in injury.

Caution Be sure to confirm permissible ranges of motors and machines before operation be-

cause the Inverter speed can be easily changed from low to high. Not doing so may result in damage to the product.

Caution Provide a separate holding brake when necessary. Not doing so may result in injury.

Caution Do not perform a signal check during operation. Doing so may result in injury or dam-

age to the product.

Caution Do not carelessly change settings. Doing so may result in injury or damage to the

product.

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Test Run

Chapter 4

4-1 Procedure for Test Run

1. Installation and Mounting

Install the Inverter according to the installation conditions. Refer to page 2-2. Ensure that the installation conditions are met.

2. Wiring and Connection

Connect to the power supply and peripheral devices. Refer to page 2-7. Select peripheral devices which meet the specifications and wire correctly.

3. Power Connection

Carry out the following pre-connection checks before turning on the power supply.

S Always ensure that a power supply to the correct voltage is used and that the power input terminals

(R/L1, S/L2, and T/L3) are wired correctly.

3G3JV-A2j: 3-phase 200 to 230 V AC

3G3JV-ABj: Single-phase 200 to 240 V AC (Wire R/L1 and S/L2)

3G3JV-A4j: 3-phase 380 to 460 V AC

S Make sure that the motor output terminals (U/T1, V/T2, and W/T3) are connected to the motor

correctly.

S Ensure that the control circuit terminals and the control device are wired correctly. Make sure that

all control terminals are turned off.

S Set the motor to no-load status (i.e., not connected to the mechanical system).

S Having conducted the above checks, connect the power supply.

4. Check the Display Status

Check to be sure that there are no faults in the Inverter.

S If the display at the time the power is connected is normal, it will read as follows:

RUN indicator: Flashes

ALARM indicator: Off

Setting/Monitor indicators: FREF, FOUT, or IOUT is lit.

Data display: Displays the corresponding data of the indicator that is lit.

S When a fault has occurred, the details of the fault will be displayed. In that case, refer to Chapter 8

Maintenance Operations and take necessary remedies.

5. Initializing Parameters

Initialize the parameters.

S Set n01 to 8 for initialization in 2-wire sequence.

6. Setting Parameters

Set the parameters required for a test run.

S Set the rated motor current in order to prevent the motor from burning due to overloading.

7. No-load Operation

Start the no-load motor using the Digital Operator.

S Set the frequency reference using the Digital Operator and start the motor using key sequences.

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Test Run

8. Actual Load Operation

Connect the mechanical system and operate using the Digital Operator.

S When there are no difficulties using the no-load operation, connect the mechanical system to the

motor and operate using the Digital Operator.

9. Operation

Basic Operation: Operation based on the basic settings required to start and stop the Inverter. Refer to page 5-1.

Advanced Operation: Operation that uses PID control or other functions. Refer to page 6-1.

S For operation within standard parameters, refer to Chapter 5 Basic Operation.

S Refer to Chapter 5 Basic Operation and Chapter 6 Advanced Operation for the various advanced

functions, such as stall prevention, carrier frequency setting, overtorque detection, torque compensation, and slip compensation.

Chapter 4

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Chapter 4

4-2 Operation Example

1 Power Connection

H Checkpoints before Connecting the Power Supply

• Check that the power supply is of the correct voltage and that the motor output terminals (R/L1, S/L2, and T/L3) are connected to the motor correctly.

3G3JV-A2j: Three-phase 200 to 230 V AC

3G3JV-ABj: Single-phase 200 to 240 V AC (Wire R/L1 and S/L2)

3G3JV-A4j: 3-phase 380 to 460 V AC

• Make sure that the motor output terminals (U/T1, V/T2, and W/T3) are connected to the motor correctly.

• Ensure that the control circuit terminals and the control device are wired correctly. Make sure that all control terminals are turned off.

• Set the motor to no-load status (i.e., not connected to the mechanical system).

H Connecting the Power Supply

• After conducting the above checks, connect the power supply.

2 Check the Display Status

• If the display is normal when the power is connected, it will read as follows:

Normal

RUN indicator: Flashes

ALARM indicator: Off

Setting/Monitor indicators: FREF, FOUT, or IOUT is lit.

Data display: Displays the corresponding data for the indicator that is lit.

• When a fault has occurred, the details of the fault will be displayed. In that case, refer to Chapter 8

Maintenance Operations and take necessary action.

Fault

RUN indicator: Flashes

ALARM indicator: Lit (fault detection) or flashes (alarm detection)

Setting/Monitor indicators: FREF, FOUT, or IOUT is lit.

Data display: The fault code, such as UV1, is displayed. The display will differ depending on the type of fault.

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3 Initializing Parameters

• Initialize the parameters using the following procedure.

• To initialize the parameters, set n01 to 8.

Chapter 4

Key sequence Indicator Display

example

In approximately 1 s.

Power On

Press the Mode Key repeatedly until the PRGM indicator is lit.

Press the Enter Key. The data of n01 will be displayed.

Use the Increment or Decrement Key to set n01 to 8. The display will flash.

Press the Enter Key so that the set value will be entered and the data display will be lit.

The parameter number will be displayed.

Explanation

4 Setting the Motor Current Parameter

• Set the motor current parameter in n32 in order to prevent the motor from burning due to overloading.

H Setting the Rated Motor Current

• Check the rated current on the motor nameplate and set the motor current parameter.

• This parameter is used for the electronic thermal function for motor overload detection (OL1). By set-

ting the correct parameter, the overloaded motor will be protected from burning.

n32

Setting range

Rated Motor Current Changes during

operation

0.0% to 120% (A) of rated output current of the Inverter

Unit of setting

0.1 A Default setting (see note

Note 1. The standard rated current of the maximum applicable motor is the default rated motor cur-

rent.

Note 2. Motor overload detection (OL1) is disabled by setting the parameter to 0.0.

Key sequence Indicator Display

example

In approximately 1 s.

Displays the parameter number.

Use the Increment or Decrement Key until n32 is displayed.

Press the Enter Key. The data of n32 will be displayed.

Use the Increment or Decrement Key to set the rated motor current. The display will flash.

Press the Enter Key so that the set value will be entered and the data display will be lit.

The parameter number will be displayed.

Explanation

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Chapter 4

5 No-load Operation

• Start the no-load motor (i.e., not connected to the mechanical system) using the Digital Operator.

Note Before operating the Digital Operator, check that the FREQ adjuster is set to MIN.

H Forward/Reverse Rotation with the Digital Operator

Key

sequence

• After changing the frequency reference or the rotation direction, check that there is no vibration or abnormal sound from the motor.

• Check that no faults have occurred in the Inverter during operation.

Indicator Display

example

Explanation

Press the Mode Key to turn on the FREF indicator.

Monitors the frequency reference. Press the RUN Key. The RUN Indicator will be lit.

Turn the FREQ adjuster clockwise slowly.

The monitored frequency reference will be displayed.

The motor will start rotating in the forward direction according to the frequency reference.

Press the MODE Key to turn on the F/R indicator. “For” will be displayed.

Use the Increment or Decrement Key to change the direction of motor rotation. The direction of motor rotation selected will be enabled when the display is changed after the Key is pressed.

H Stopping the Motor

• On completion of operating the motor in the no-load state in the forward or reverse direction, press the STOP/RESET Key. The motor will stop.

6 Actual Load Operation

• After checking the operation with the motor in no-load status, connect the mechanical system and operate with an actual load.

Note Before operating the Digital Operator, check that the FREQ adjuster is set to MIN.

H Connecting the System

• After confirming that the motor has stopped completely, connect the mechanical system.

• Be sure to tighten all the screws when fixing the motor axis in the mechanical system.

H Operation Using the Digital Operator

• In case a fault occurs during operation, make sure the Stop Key on the Digital Operator is easily accessible.

• Use the Digital Operator in the same way as no-load operation.

• First set the frequency reference to a low speed of one tenth the normal operating speed.

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Chapter 4

H Checking the Operating Status

• Having checked that the operating direction is correct and that the machine is operating smoothly at slow speed, increase the frequency reference.

• After changing the frequency reference or the rotation direction, check that there is no vibration or abnormal sound from the motor. Check the monitor display (IOUT or multi-function monitor U03) to ensure that the output current is not becoming excessive.

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Chapter 5

Basic Operation

5-1 Initial Settings

5-2 V/f Control

5-3 Setting the Local/Remote Mode

5-4 Selecting the Operation Command

5-5 Setting the Frequency Reference

5-6 Setting the Acceleration/Deceleration Time

5-7 Selecting the Reverse Rotation-prohibit

5-8 Selecting the Interruption Mode

5-9 Multi-function I/O

5-10 Analog Monitor Output

Page 83

Basic Operation

This section explains the basic settings required to operate and stop the Inverter. The settings of parameters described here will be sufficient for simple Inverter operations. First, make these basic settings, then skip to the explanations of those special functions, even when your application requires special functions, such as stall prevention, carrier frequency setting, overtorque detection, torque compensation, slip compensation. Refer to Chapter 6 Advanced Operation.

Chapter 5

5-1 Initial Settings

• The following initial settings are required.

Parameter Write-prohibit Selection/Parameter Initialization (n01): Set n01 to 1 so that n01 through n79 can be set or displayed.

Rated Motor Current (n32): Check the rated current on the motor nameplate and set the parameter.

H Setting the Parameter Write-prohibit Selection/Parameter Initialization

(n01)

• Set n01 to 1 so that n01 through n79 can be set or displayed.

n01

Setting range

Note This parameter makes it possible to write-prohibit parameters, change the parameter set or dis-

Parameter Write-prohibit Selection/Parameter Initialization

0, 1, 5, 6, 8, 9 Unit of

setting

played range, or initialize all parameters to default values.

1 Default setting 1

Changes during operation

Set Values

Value Description

0 Only n01 can be displayed and set. The n02 through n79 parameters can be displayed only. 1 The n01 through n79 parameters can be displayed and set. 5 Enables continuous operation. (Parameters n01 to n79 can be set or monitored.) 6 Only the error log memory is cleared. 8 Enables the initialization of all parameters in 2-wire sequence so that the parameters will

return to default values.

9 Enables the initialization of all parameters in 3-wire sequence.

Note With settings 0 or 1, operation commands are ignored in Program Mode. (Refer to 3-1-2 Drive

Mode and Program Mode.) Normally, use a setting of 0 or 1.

H Setting the Rated Motor Current (n32)

Set the rated motor current (n32) in order to prevent the motor from burning due to overloading.

Check the rated current on the motor nameplate and set the parameter.

This parameter is used for the electronic thermal function for motor overload detection (OL1). By setting the correct parameter, the overloaded motor will be protected from burning.

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Basic Operation

Chapter 5

n32

Setting range

Rated Motor Current Changes during

operation

0.0% to 120% (A) of rated output current of Inverter

Unit of setting

0.1 A Default setting (see note

Note 1. The standard rated current of the maximum applicable motor is the default rated motor cur-

rent.

Note 2. Motor overload detection (OL1) is disabled by setting the parameter to 0.0.

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Basic Operation

Chapter 5

5-2 V/f Control

H Setting the V/f Patterns (n09 to n15)

• Set the V/f pattern so that the motor output torque is adjusted to the required load torque.

• The 3G3JV incorporates an automatic torque boost function. Therefore, a maximum of 150% torque

can be output at 3 Hz without changing the default settings. Check the system in trial operation and leave the default settings as they are if no torque characteristic changes are required.

n09

Setting range

n10

Setting range

n11

Setting range

n12

Setting range

n13

Setting range

Maximum Frequency (FMAX) Changes during

operation

50.0 to 400 (Hz) Unit of setting

Maximum Voltage (VMAX) Changes during

1 to 255 (V) (See note 2.) Unit of

setting

Maximum Voltage Frequency (FA) Changes during

0.2 to 400 (Hz) Unit of setting

Middle Output Frequency (FB) Changes during

0.1 to 399 (Hz) Unit of setting

Middle Output Frequency Voltage (VC) Changes during

1 to 255 (V) (See note 2.) Unit of

setting

0.1 Hz (See note 1.)

1 V Default setting 200 (See

0.1 Hz (See note 1.)

1 V Default setting 12 (See

Default setting 60.0

operation

operation Default setting 60.0

operation Default setting 1.5

operation

note 2.)

n14

Setting range

n15

Setting range

Minimum Output Frequency (FMIN) Changes during

operation

0.1 to 10.0 (Hz) Unit of setting

Minimum Output Frequency Voltage (VMIN) Changes during

1 to 50 (V) (See note 2.) Unit of

setting

0.1 Hz Default setting 1.5

operation

1 V Default setting 12 (See

note 2.)

Note 1. Values will be set in 0.1-Hz increments if the frequency is less than 100 Hz and 1-Hz incre-

ments if the frequency is 100 Hz or greater.

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Basic Operation

Chapter 5

Note 2. With 400-V Inverters, the values for the upper limit of setting ranges and the default settings

will be twice those given in the above table.

Output voltage (V)

Note 1. Set the parameters so that the fol-

lowing condition will be satisfied. n14 x n12 < n11 x n09

Note 2. The value set in n13 will be ignored if

parameters n14 and n12 are the same in value.

Frequency (Hz)

• Set the rated motor input frequency to the maximum voltage frequency (FMAX) while the rated motor input voltage is set to the maximum output voltage (VMAX).

• The vertical-axis load or the load with high viscous friction may require high torque at low speed. If the torque is insufficient at low speed, increase the voltage in the low-speed range by 1 V, provided that no overload (OL1 or OL2) is detected. If an overload is detected, decrease the set values or consider the use of an Inverter model with a higher capacity.

• The required torque of fan or pump control increases in proportion to the square of the speed. By setting a quadratic V/f pattern to increase the voltage in the low-speed range, the power consumption of the system will increase.

5-5

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Basic Operation

5-3 Setting the Local/Remote Mode

The 3G3JV operates in local or remote mode. The following description provides information on these modes and how to select them.

H Basic Concept

Operation mode Basic concept Description

Remote The Inverter in a system

operates according to the control signal of the host controller.

Local The Inverter in a system

operates independently in this mode so that the Inverter can be checked independently.

RUN Command

Selectable from two types and set in n02.

Frequency Reference

Selectable from five types and set in n03.

RUN Command

Starts with the RUN Key of the Digital Operator and stops with the STOP/RESET Key.

Frequency Reference

Set with the Digital Operator or the FREQ adjuster.

Set with frequency reference selection in local mode in n07.

Chapter 5

H Local/Remote Selection Methods

• The following two selection methods are available to set the Inverter to local or remote mode. While the operation command is being input, however, the Inverter cannot be set to local mode from remote mode or vice versa.

S Select the mode with the LO/RE Key of the Digital Operator.

S Set any one of multi-function inputs 1 through 4 (n36 through n39) to 17 to set the Inverter to local

mode with control input turned ON.

Note If the above setting is made, mode selection will be possible only with multi-function input, and not

with the Digital Operator.

• The Inverter always goes into remote mode when the power is turned ON. Therefore, to operate immediately after power-up, set up the RUN command and frequency reference settings in remote mode in advance.

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Basic Operation

Chapter 5

5-4 Selecting the Operation Command

The following description provides information on how to input operation commands to start or stop the Inverter or change the direction of rotation of the Inverter. Three types of command input methods are available. Select either one of them according to the application.

H Selecting the Operation Mode (n02)

• Select the method of operation mode input to start or stop the Inverter.

• The following method is enabled in remote mode only. The command can be input through key se-

quences on the Digital Operator.

n02

Setting range

Operation Command Selection Changes during

operation

0 to 2 Unit of

setting

1 Default setting 0

Set Values

Value Description

0 The RUN and STOP/RESET Keys of the Digital Operator are enabled. 1 Multi-function input in 2- or 3-wire sequence through the control circuit terminals is enabled. 2 Operation commands via RS-422/485 communications are enabled.

H Selecting the STOP/RESET Key Function (n06)

• When parameter n02 is set to 1, set whether or not to use the STOP/RESET Key of the Digital Operator to stop the Inverter in remote mode. The STOP/RESET Key is always enabled in local mode regardless of the setting in n02.

n06

Setting range

STOP Key Function Selection Changes during

operation

0, 1 Unit of

setting

1 Default setting 0

Set Values

Value Description

0 The STOP/RESET Key of the Digital Operator is enabled. 1 The STOP/RESET Key of the Digital Operator is disabled. This setting is available only when

the Digital Operator is selected for operation command input.

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Chapter 5

5-5 Setting the Frequency Reference

5-5-1 Selecting the Frequency Reference

The following description provides information on how to set the frequency reference in the Inverter. Select the method according to the operation mode. Remote mode: Select and set one out of six frequency references in n03. Local mode: Select and set one out of two frequency references in n07.

H Selecting the Frequency Reference (n03) in Remote Mode

• Select the input method of frequency references in remote mode.

• Five frequency references are available in remote mode. Select one of them according to the applica-

tion.

n03

Setting range

Frequency Reference Selection Changes during

operation

0 to 4, 6 Unit of

setting

1 Default setting 0

Set Values

Value Description

0 The FREQ adjuster of the Digital Operator is enabled. (see note 1) 1 Frequency reference 1 (n21) is enabled. 2 The frequency reference control terminal (for 0- to 10-V input) is enabled. (see note 2) 3 The frequency reference control terminal (for 4- to 20-mA current input) is enabled. (see note

4 The frequency reference control terminal (for 0- to 20-mA current input) is enabled. (see note

6 The frequency reference via RS-422/485 communications is enabled.

Note 1. The maximum frequency (FMAX) is set when the FREQ adjuster is set to MAX.

Note 2. The maximum frequency (FMAX) is set with 10 V input.

Note 3. The maximum frequency (FMAX) is set with 20 mA input, provided that SW8 on the control

PCB is switched from V to I.

• The frequency reference set in n03 works as frequency reference 1 when the Inverter is in multi-step speed operation. The set values in n22 through n28 for frequency references 2 through 8 are enabled.

H Selecting the Frequency Reference (n07) in Local Mode

• Select the input method of frequency references in local mode.

• Two frequency references are available in local mode. Select one of them according to the application.

Setting range

5-8

n07

Frequency Reference Selection in Local Mode Changes during

operation

0, 1 Unit of

setting

1 Default setting 0

Page 90

Basic Operation

Chapter 5

Set Values

Value Description

0 The FREQ adjuster of the Digital Operator is enabled. (see note 1) 1 Key sequences on the Digital Operator are enabled. (see note 2)

Note 1. The maximum frequency (FMAX) is set when the FREQ adjuster is set to MAX. Note 2. The frequency reference can be set with key sequences while the FREF indicator is lit or with

the set value in n21 for frequency reference 1. In either case, the value is set in n21.

5-5-2 Upper and Lower Frequency Reference Limits

Regardless of the methods of operation mode and frequency reference input, the upper and lower frequency reference limits can be set.

H Setting the Frequency Reference Upper and Lower Limits (n30 and

n31)

• Set the upper and lower frequency reference limits as percentage based on the maximum frequency as 100%.

n30

Setting range

n31

Setting range

Frequency Reference Upper Limit Changes during

operation

0% to 110% (Max. frequency = 100%)

Frequency Reference Lower Limit Changes during

0% to 110% (Max. frequency = 100%)

Unit of setting

1% Default setting 100

operation

1% Default setting 0

Note If n31 is set to a value less than the minimum output frequency (FMIN), the Inverter will have no

output when a frequency reference less than the minimum output frequency input is ON.

5-5-3 Adjusting the Analog Input

Input characteristic adjustments may be necessary for analog frequency references to be input. At that time, use the following parameters for gain, bias, and filter time parameter adjustments.

H FR Terminal Adjustments for Frequency Reference Input

D Gain and Bias Settings (n41 and n42)

• Set the input characteristics of analog frequency references in n41 (for the frequency reference gain) and n42 (for the frequency reference bias).

• Set the frequency of maximum analog input (10 V or 20 mA) in n41 as percentage based on the maximum frequency as 100%.

• Set the frequency of minimum analog input (0 V, 0 mA, or 4 mA) in n42 as percentage based on the maximum frequency as 100%.

n41

Setting range

Frequency Reference Gain Changes during

operation

0% to 255% (Max. frequency = 100%)

Unit of setting

1% Default setting 100

Yes

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Chapter 5

n42

Setting range

Frequency Reference Bias Changes during

operation

–99% to 99% (Max. frequency = 100%)

Unit of setting

1% Default setting 0

Yes

D Analog Frequency Reference Filter Time (n43)

• The digital filter with a first-order lag can be set for analog frequency references to be input.

• This setting is ideal if the analog input signal changes rapidly or the signal is subject to noise interfer-

ence.

• The larger the set value is, the slower the response speed will be.

n43

Setting range

Analog Frequency Reference Filter Time Changes during

operation

0.00 to 2.00 (s) Unit of setting

0.01 s Default setting 0.10

5-5-4 Setting Frequency References through Key Sequences

The following description provides information on parameters related to frequency reference settings through key sequences on the Digital Operator

H Setting Frequency References 1 through 8 and the Inching Frequency

Command (n21 through n28 and n29)

A total of nine frequency references (frequency references 1 through 8) and an inching frequency command can be set together in the Inverter.

D Setting Frequency References 1 through 8 (n21 through n28)

n21

Setting range

n22

Setting range

n23

Setting range

n24

Setting range

Frequency Reference 1 Changes during

operation

0.0 to max. frequency Unit of setting

Frequency Reference 2 Changes during

0.0 to max. frequency Unit of setting

Frequency Reference 3 Changes during

0.0 to max. frequency Unit of setting

Frequency Reference 4 Changes during

0.0 to max. frequency Unit of setting

0.01 Hz (see note 1)

Default setting 6.0

operation Default setting 0.0

Yes

Setting range

5-10

n25

Frequency Reference 5 Changes during

operation

0.0 to max. frequency Unit of setting

0.01 Hz (see note 1)

Default setting 0.0

Yes

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Basic Operation

Chapter 5

n26

Setting range

n27

Setting range

n28

Setting range

Frequency Reference 6 Changes during

operation

0.0 to max. frequency Unit of setting

Frequency Reference 7 Changes during

0.0 to max. frequency Unit of setting

Frequency Reference 8 Changes during

0.0 to max. frequency Unit of setting

0.01 Hz (see note 1)

Default setting 0.0

operation Default setting 0.0

Yes

Note 1. Values will be set in 0.1-Hz increments if the frequency is less than 100 Hz and 1-Hz incre-

ments if the frequency is 100 Hz or over.

Note 2. Frequency reference 1 is enabled with n03 for frequency reference selection set to 1.

Note 3. Frequency references 2 through 8 are enabled by setting multi-step speed references 1, 2,

and 3 in n36 through n39 for multi-function input. Refer to the following table for the relationship between multi-step speed references 1 through 3 and frequency references 1 through 8.

Frequency reference Multi-step speed

reference 1

(Set value: 6)

Frequency reference 1 OFF OFF OFF Frequency reference 2 ON OFF OFF Frequency reference 3 OFF ON OFF Frequency reference 4 ON ON OFF Frequency reference 5 OFF OFF ON Frequency reference 6 ON OFF ON Frequency reference 7 OFF ON ON Frequency reference 8 ON ON ON

Multi-step speed

reference 2

(Set value: 7)

Multi-step speed

reference 3

(Set value: 8)

No multi-step speed reference 3 settings will be required if only frequency references 1 through 4 are used, for example. Any multi-step speed reference not set is regarded as turned-OFF input.

D Setting the Inching Frequency Command (n29)

• The inching frequency command must be set as multi-function input in order to use the inching frequency command.

n29

Setting range

Inching Frequency Command Changes during

operation

0.0 to max. frequency Unit of setting

0.01 Hz (see note 1)

Default setting 6.0

Yes

Note 1. The value will be set in 0.1-Hz increments if the frequency is less than 100 Hz and 1-Hz incre-

ments if the frequency is 100 Hz or over.

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Chapter 5

Note 2. In order to use the inching frequency command, one of the n36 through n39 parameters for

multi-function input must be set to 10 as an inching frequency command. Parameter n29 is selectable by turning on the multi-function input set with the inching frequency command. The inching frequency command takes precedence over the multi-step speed reference (i.e., when the inching frequency command is ON, all multi-step speed reference input will be ignored).

H Setting the Frequency Reference with the FREF Indicator Lit

• The frequency reference can be set while the FREF indicator of the Digital Operator is lit in the following cases.

S Parameter n03 for frequency reference selection is set to 1, which enables frequency reference 1,

and the Inverter is in remote mode.

S Parameter n07 for frequency selection in local mode is set to 1, which enables key sequences on

the Digital Operator, and the Inverter is in local mode.

S Frequency references 2 through 8 are set with multi-step speed reference input.

• The frequency reference can be changed, even during operation.

• When the frequency reference is changed while the FREF indicator is lit, the corresponding parameter

is changed simultaneously. For example, if frequency reference 2 has been selected with multi-function input (a multi-step speed reference), the set value in n22 (for frequency reference 2) will be changed simultaneously when the frequency reference is changed while the FREF indicator is lit.

• Take the following default steps, for example, to change the frequency reference with the FREF indicator lit.

Key

sequence

Indicator Display

example

Explanation

Power On Note If the FREF indicator has not been lit, press the Mode Key

repeatedly until the FREF indicator is lit.

Use the Increment or Decrement Key to set the frequency reference.

The data display will flash while the frequency reference is set. Press the Enter Key so that the set value will be entered and

the data display will be lit.

D Setting the Key Sequential Frequency (n08)

• The Enter Key need not be pressed when changing the setting in n08. In that case, the frequency reference will change when the set value is changed with the Increment or Decrement Key while the data display is continuously lit.

Setting range

5-12

n08

Key Sequential Frequency Setting Changes during

operation

0, 1 Unit of

setting

1 Default setting 0

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Basic Operation

Set Values

Value Description

0 Enter Key enabled (The set value is entered with the Enter Key pressed.) 1 Enter Key disabled (The set value set is entered immediately.)

Chapter 5

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Basic Operation

Chapter 5

5-6 Setting the Acceleration/Deceleration Time

The following description provides information on parameters related to acceleration and deceleration time settings. Trapezoidal and S-shape acceleration and deceleration are available. Using the Sshape characteristic function for acceleration and deceleration can reduce shock to the machinery when stopping or starting.

H Setting the Acceleration/Deceleration Time (n16 through n19)

• Two acceleration times and two deceleration times can be set.

• The acceleration time is the time required to go from 0% to 100% of the maximum frequency and the

deceleration time is the time required to go from 100% to 0% of the maximum frequency. The actual acceleration or deceleration time is obtained from the following formula.

Acceleration/Deceleration time = (Acceleration/Deceleration time set value)

× (Frequency reference value) ÷ (Max. frequency)

Acceleration time 2 and deceleration time 2 are enabled by setting 11 for acceleration/deceleration time selection in any of the n36 through n39 parameters for multi-function input.

Deceleration time 2 is also enabled by emergency-stop settings 19, 20, 21, and 22 in any of the n36, n37, n38, and n39 parameters for multi-function input with n04 for interruption mode selection set to 0 (i.e., deceleration stop).

n16

Setting range

n17

Setting range

n18

Setting range

n19

Unit of setting

Acceleration time 1 Changes during

operation

0.0 to 999 (s) Unit of setting

Deceleration Time 1 Changes during

0.0 to 999 (s) Unit of setting

Acceleration Time 2 Changes during

0.0 to 999 (s) Unit of setting

Deceleration Time 2 Changes during

0.0 to 999 (s) Unit of setting

0.1 s (see note)

Default setting 10.0

operation Default setting 10.0

Yes

Note Values will be set in 0.1-Hz increments if the frequency is less than 100 Hz and 1-Hz increments if

the frequency is 100 Hz or over.

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Basic Operation

Chapter 5

H S-shape Acceleration/Deceleration Characteristic (n20)

• Trapezoidal and S-shape acceleration and deceleration are available. Using the S-shape characteristic function for acceleration and deceleration can reduce shock to the machinery when stopping or starting.

• Any one of three S-shape acceleration/deceleration times (0.2, 0.5, and 1.0 s) is selectable.

n20

Setting range

S-shape Acceleration/Deceleration Characteristic Changes during

operation

0 to 3 Unit of

setting

1 Default setting 0

Set Values

Value Description

0 No S-shape acceleration/deceleration characteristic (Trapezoidal acceleration/deceleration) 1 S-shape acceleration/deceleration characteristic time is 0.2 s 2 S-shape acceleration/deceleration characteristic time is 0.5 s 3 S-shape acceleration/deceleration characteristic time is 1.0 s

Note When the S-shape acceleration/deceleration characteristic time is set, the acceleration and de-

celeration times will be lengthened according to the S-shape at the beginning and end of acceleration/deceleration.

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Basic Operation

5-7 Selecting the Reverse Rotation-prohibit

This parameter is used to specify whether to enable or disable the reverse rotation command sent to the Inverter from the control circuit terminals or Digital Operator. The parameter should be set to “not accept” when the Inverter is applied to systems that prohibit the reverse rotation of the Inverter.

H Selecting the Reverse Rotation-prohibit (n05)

Chapter 5

n05

Setting range

Reverse Rotation-prohibit Selection Changes during

0, 1 Unit of

setting

Set Values

Value Description

0 Accept 1 Not accept

operation

1 Default setting 0

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Basic Operation

5-8 Selecting the Interruption Mode

This parameter is used to specify the interruption mode when the STOP command is input. The Inverter either decelerates or coasts to a stop according to the interruption mode selection.

H Selecting the Interruption Mode (n04)

Chapter 5

n04

Setting range

Interruption Mode Selection Changes during

operation

0, 1 Unit of

setting

1 Default setting 0

Set Values

Value Description

0 Frequency deceleration stop (See notes 1 and 2.) 1 Free running (See note 3.)

Note 1. The Inverter will decelerate to stop according to the setting in n17 for deceleration time 1 if any

of the n36 through n39 parameters for multi-function input is not set to 11 for acceleration/deceleration time selection. If any one of the n36 through n39 multi-function input parameters is set to acceleration/deceleration time selection, the Inverter will decelerate to stop according to the selected setting of deceleration time when the STOP command is input.

Note 2. If the RUN signal is input again during a deceleration stop, deceleration will be stopped at the

point of the input and acceleration will proceed at that frequency.

Note 3. Do not input a RUN signal during a free-running stop if the motor’s rotation speed is not suffi-

cient slowed. If a RUN signal is input under these conditions, a main circuit overvoltage (OV) or overcurrent (OC) will be detected. To restart a free-running motor, set a speed search command in one of the multi-function inputs 1 to 4 (n36 to n39), use the speed search to detect the speed of the free running motor, and then accelerate smoothly.

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Note Refer to 554 Setting the Frequency References through Key

Basic Operation

5-9 Multi-function I/O

5-9-1 Multi-function Input

The 3G3JV incorporates four multi-function input terminals (S2 through S5). Inputs into these terminals have a variety of functions according to the application.

H Multi-function Input (n36 through n39)

Chapter 5

n36

Setting range

n37

Setting range

n38

Setting range

n39

Setting range

Multi-function Input 1 (S2) Changes during

operation

2 to 8, 10 to 22 (see note)

Multi-function Input 2 (S3) Changes during

0, 2 to 8, 10 to 22 (see note)

Multi-function Input 3 (S4) Changes during

2 to 8, 10 to 22 (see note)

Multi-function Input 4 (S5) Changes during

2 to 8, 10 to 22, 34, 35 (see note)

Unit of setting

1 Default setting 2

operation

1 Default setting 5

operation

1 Default setting 3

operation

1 Default setting 6

Note Do not set values outside the above setting ranges.

Set Values

Value Function Description

0 Forward/Reverse rotation

command

2 Reverse/Stop Reverse rotation command (2-wire sequence) 3 External fault (NO) 4 External fault (NC) 5 Fault reset ON: Fault reset (disabled while RUN command is input) 6 Multi-step speed

reference 1

7 Multi-step speed

reference 2

8 Multi-step speed

reference 3

3-wire sequence (to be set in n37 only)

By setting n37 to 0, the set value in n36 is ignored and the following setting are forcibly made.

S1: RUN input (RUN when ON)

S2: STOP input (STOP when OFF)

S3: Forward/Reverse rotation command

(OFF: Forward; ON: Reverse)

ON: External fault (FPj detection: j is a terminal number) OFF: External fault (EFj detection: j is a terminal number)

Signals to select frequency references 2 through 8.

Note Refer to 5-5-4 Setting the Frequency References through Key

Sequences for the relationship between multi-step speed ref-

erences and frequency references.

Note Any multi-step speed reference not set is regarded as turned-

OFF input.

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gyp

Basic Operation

Value DescriptionFunction

10 Inching frequency

command

11 Acceleration/Deceleration

time selection

12 External base block

command (NO)

13 External base block

command (NC)

14 Search command

(Searching starts from maximum frequency)

15 Search command

(Searching starts from preset frequency)

16 Acceleration/Decelera-

tion-prohibit command

17 Local or remote selection ON: Local mode (operated with the Digital Operator)

18 Communications or

remote selection

19 Emergency stop fault

(NO)

20 Emergency stop alarm

(NO)

21 Emergency stop fault

(NC)

22 Emergency stop alarm

(NC)

34 Up or down command Up or down command (set in n39 only)

35 Self-diagnostic test ON: RS-422/485 communications self-diagnostic test (set in n39

ON: Inching frequency command (taking precedence over the multi-step speed reference)

ON: Acceleration time 2 and deceleration time 2 are selected.

ON: Output shut off (while motor coasting to a stop and “bb” flashing)

OFF: Output shut off (with motor free running and “bb” flashing)

ON: Speed search (Searching starts from n09)

ON: Speed search

ON: Acceleration/Deceleration is on hold (running at parameter frequency)

Note After this setting is made, mode selection with the Digital Oper-

ator is not possible.

ON: RS-422/485 communications input is enabled. OFF: The settings of n02 and n03 are enabled.

The Inverter stops according to the setting in n04 for interruption mode selection with the emergency stop input turned ON.

n04 set to 0: Decelerates to stop at deceleration time 2 set in n19. n04 set to 1: Coasts to a stop.

Note NO: Emergency stop with the contact closed.

NC: Emergency stop with the contact opened.

Note Fault: Fault output is ON and reset with RESET input. Alarm

output is ON (no reset required).

Note “STP” is displayed (lit with fault input ON and flashes with alarm

input ON)

By setting n39 to 34, the set value in n38 is ignored and the following settings are forcibly made.

S4: Up command S5: Down command

Note It is impossible to set the up or down command and multi-step

speed references 1 through 3 together.

Note For up and down command functions in detail, refer to 6-7-7

UP/DOWN Command Frequency Memory (n62).

only)

Chapter 5

5-19