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USER'S MANUAL
SYSDRIVE 3G3JV
SERIES
Compact Simplified Inverter
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.
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 specifications)? S Has the product been damaged in shipping? S Are any screws or bolts loose?
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. Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage.
!
WARNING
! Caution
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 WARNING
Do not touch the inside of the Inverter. Doing so may result in electrical shock. 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. Do not damage, pull on, apply stress to, place heavy objects on, or pinch the cables. Doing so may result in electrical shock. Do not touch the rotating parts of the motor under operation. Doing so may result in injury. Do not modify the product. Doing so may result in injury or damage to the product. 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.
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WARNING WARNING WARNING
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! Caution
! 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. Do not conduct a dielectric strength test on any part of the Inverter. Doing so may result in damage to the product or malfunction. Take appropriate and sufficient countermeasures when installing systems in the following 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.
! Caution
! Caution
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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. Do not pull on the cables. Doing so may result in damage to the product or malfunction. Use the eye-bolts only for transporting the Inverter. Using them for transporting the machinery may result in injury or malfunction.
! Caution
! Caution
Installation Precautions
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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. Provide an external emergency stopping device that allows an instantaneous stop of operation and power interruption. Not doing so may result in injury. Be sure to install the product in the correct direction and provide specified clearances between the Inverter and control panel or with other devices. Not doing so may result in fire or malfunction. Do not allow foreign objects to enter inside the product. Doing so may result in fire or malfunction. Do not apply any strong impact. Doing so may result in damage to the product or malfunction.
!
WARNING
! Caution
! Caution
! Caution
Wiring Precautions
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WARNING
Wiring must be performed only after confirming that the power supply has been turned OFF. Not doing so may result in electrical shock. Wiring must be performed by authorized personnel. Not doing so may result in electrical shock or fire. Be sure to confirm operation only after wiring the emergency stop circuit. Not doing so may result in injury. Always connect the ground terminals to a ground of 100 or less for the 200-V AC class, or 10 or less for the 400-V AC class. Not connecting to a proper ground may result in electrical shock.
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WARNING
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WARNING
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WARNING
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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. Confirm that the rated input voltage of the Inverter is the same as the AC power supply voltage. An incorrect power supply may result in fire, injury, or malfunction. Connect the Braking Resistor and Braking Resistor Unit as specified in the manual. Not doing so may result in fire. Be sure to wire correctly and securely. Not doing so may result in injury or damage to the product. Be sure to firmly tighten the screws on the terminal block. Not doing so may result in fire, injury, or damage to the product. Do not connect an AC power to the U, V, or W output. Doing so may result in damage to the product or malfunction.
! Caution
! Caution
! Caution
! Caution
! Caution
Operation and Adjustment Precautions
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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. Do not remove the front cover, terminal covers, bottom cover, Operator, or optional items while the power is being supplied. Not doing so may result in electrical shock or damage to the product. Do not operate the Operator or switches with wet hands. Doing so may result in electrical shock. Do not touch the inside of the Inverter. Doing so may result in electrical shock. 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. 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. 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
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WARNING
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WARNING WARNING
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WARNING
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WARNING
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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 because 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 damage to the product.
! Caution
Do not carelessly change settings. Doing so may result in injury or damage to the product.
Maintenance and Inspection Precautions
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WARNING
Do not touch the Inverter terminals while the power is being supplied.
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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.
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WARNING
Maintenance, inspection, or parts replacement must be performed by authorized personnel. Not doing so may result in electrical shock or injury.
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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 replace 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-A to model -A2007-A (0.1 to 0.75 kW) and 3G3JV-AB001-A to -AB004-A (0.1 to 0.4 kW):
S For 3G3JV-A2015-A to model -A2037-A (1.5 to 3.7 kW), 3G3JV-AB007-A to -AB015-A (0.75 to 1.5 kW), and 3G3JV-A4002-A to -A4037-A (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-A
North American Specification Maximum applicable motor capacity Voltage class Installation type Series name: 3G3JV Series
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Maximum Applicable Motor Capacity
001 002 004 007 015 022 037 0.1 (0.1) kW 0.25/0.37 (0.2) kW 0.55 (0.4) kW 1.1 (0.75) kW 1.5 (1.5) kW 2.2 (2.2) kW 3.7 (3.7) kW
Note The figures in parentheses indicate capacities for motors used outside Japan.
Voltage Class
2 B 4 Three-phase 230-V AC input (230-V class) Single-phase 230-V AC input (230-V class) Three-phase 460-V AC input (460-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
Chapter 1 Overview Chapter 2 Design Chapter 3 Preparing for Operation and Monitoring Chapter 4 Test Run
Contents
Describes features and nomenclature. Provides dimensions, installation methods, wiring methods, peripheral device design information, and peripheral device selection information. Describes nomenclature and Digital Operator procedures for operating and monitoring Inverters. Describes the method for controlling a motor through the frequency adjuster on the front of the Inverter. This can be used for trial operation of the system. Describes basic Inverter control functions for users not familiar with Inverters. The functions that must be understood to drive a motor with an Inverter are described. Describes all of the functions provided by the Inverter. These functions 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. Provides maintenance, inspection, and troubleshooting information. Provides Inverter specifications, as well as the specifications and dimensions of peripheral devices. Lists basic information on Inverter parameters as a reference for users 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.
Chapter 5 Basic Operation
Chapter 6 Advanced Operation
Chapter 7 Maintenance Operations Chapter 8 Specifications Chapter 9 List of Parameters
Chapter 10 Using the Inverter for a Motor
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Table of Contents
Chapter 1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1-4
Chapter 2. Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-2 Installation Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-1 Removing and Mounting the Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-2 Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-3 Standard Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-4 Wiring around the Main Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-5 Wiring Control Circuit Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-6 Conforming to EC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2-2 2-4 2-7 2-8 2-9 2-14 2-15 2-26 2-28
Chapter 3. Preparing for Operation and Monitoring . . . . . . . . . . . . . 3-1
3-1 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Outline of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3-4
Chapter 4. Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-1 Procedure for Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Operation Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 4-5
Chapter 5. Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-1 5-2 5-3 5-4 5-5 Initial Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V/f Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting the Local/Remote Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting the Operation Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting the Frequency Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5-1 Selecting the Frequency Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5-2 Upper and Lower Frequency Reference Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5-3 Adjusting the Analog Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5-4 Setting Frequency References through Key Sequences . . . . . . . . . . . . . . . . . . . . . . . . Setting the Acceleration/Deceleration Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting the Reverse Rotation-prohibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting the Interruption Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Multi-function I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9-1 Multi-function Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9-2 Multi-function Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analog Monitor Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5-4 5-6 5-7 5-8 5-8 5-9 5-9 5-10 5-14 5-16 5-17 5-18 5-18 5-21 5-23
5-6 5-7 5-8 5-9
5-10
Chapter 6. Advanced Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-1 6-2 6-3 6-4 Setting the Carrier Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC Injection Braking Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stall Prevention Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overtorque Detection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 6-5 6-6 6-9
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Table of Contents
6-5 Torque Compensation Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 Slip Compensation Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 Other Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7-1 Motor Protection Characteristics (n33 and n34) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7-2 Cooling Fan Operation Function (n35) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7-3 Momentary Power Interruption Compensation (n47) . . . . . . . . . . . . . . . . . . . . . . . . . 6-7-4 Fault Retry (n48) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7-5 Frequency Jump Function (n49 to n51) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7-6 Frequency Detection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7-7 UP/DOWN Command Frequency Memory (n62) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7-8 Error History (n78) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11 6-12 6-14 6-14 6-14 6-15 6-15 6-16 6-17 6-19 6-21
Chapter 7. Maintenance Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7-1 Protective and Diagnostic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1-1 Fault Detection (Fatal Error) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1-2 Warning Detection (Nonfatal Error) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2-1 Parameters Fail Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2-2 Motor Fails to Operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2-3 Motor Rotates in the Wrong Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2-4 Motor Outputs No Torque or Acceleration is Slow . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2-5 Motor Deceleration is Slow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2-6 Motor Burns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2-7 Controller or AM Radio Receives Noise when Inverter is Started . . . . . . . . . . . . . . . 7-2-8 Ground Fault Interrupter is Actuated when Inverter is Started . . . . . . . . . . . . . . . . . . 7-2-9 Mechanical Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2-10 Motor Rotates after Output of Inverter is Turned Off . . . . . . . . . . . . . . . . . . . . . . . . . 7-2-11 Detects OV when Motor Starts and Motor Stalls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2-12 Output Frequency Does Not Reach Frequency Reference . . . . . . . . . . . . . . . . . . . . . . 7-2-13 Inverter Does Not Run Because EF is Detected, or Motor Rotates Momentarily While Control Device Power is OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 Maintenance and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 7-2 7-6 7-8 7-8 7-8 7-10 7-10 7-10 7-10 7-11 7-11 7-12 7-12 7-12 7-13 7-13 7-14
Chapter 8. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8-1 Inverter Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 8-2 Specifications of Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6 8-2-1 List of Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6 8-2-2 Fan Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7 8-2-3 Scaling Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7 8-2-5 DIN Track Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9 8-3 Option Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10 8-3-1 EMC-compatible Noise Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Chapter 9. List of Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 Chapter 10. Using the Inverter for a Motor . . . . . . . . . . . . . . . . . . . . . 10-1
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
xiv
R-1
1
Chapter 1 Overview
1-1 1-2 Function Nomenclature
Overview 1-1 Function
Chapter 1
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 230-V AC-class, and 3-phase 460-V AC-class 3G3JV models are available.
Rated voltage 3-phase 230 V AC Protective structure Panel-mounting models g (conforming to IP20) ( f i Maximum applied motor capacity 0.1 (0.1) kW 0.25 (0.2) kW 0.55 (0.4) kW 1.1 (0.75) kW 1.5 (1.5) kW 2.2 (2.2) kW 3.7 (3.7) kW 0.1 (0.1) kW 0.25 (0.2) kW 0.55 (0.4) kW 1.1 (0.75) kW 1.5 (1.5) kW 0.37 (0.2) kW 0.55 (0.4) kW 1.1 (0.75) kW 1.5 (1.5) kW 2.2 (2.2) kW 3.7 (3.7) kW Model 3G3JV-A2001-A 3G3JV-A2002-A 3G3JV-A2004-A 3G3JV-A2007-A 3G3JV-A2015-A 3G3JV-A2022-A 3G3JV-A2037-A 3G3JV-AB001-A 3G3JV-AB002-A 3G3JV-AB004-A 3G3JV-AB007-A 3G3JV-AB015-A 3G3JV-A4002-A 3G3JV-A4004-A 3G3JV-A4007-A 3G3JV-A4015-A 3G3JV-A4022-A 3G3JV-A4037-A
Single-phase 230 V AC g
Panel-mounting models g (conforming to IP20) ( f i
3-phase 460 V AC
Panel-mounting models g (conforming to IP20) ( f i
Note 1. The figures in parentheses indicate capacities for motors used outside 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 EC Directives EMC Directive Low-voltage Directive UL/cUL Applicable standard EN50081-2 and EN5008-2 prEN50178 UL508C
1-2
Overview
H Versatile Easy-to-use Functions
Chapter 1
· 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 prolonged 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
Overview 1-2 Nomenclature
Chapter 1
H Panel
Top protection cover
Terminal block
Mounting holes (Two)
Digital Operator
ALARM display RUN indicator
Optional cover
Front cover Terminal block U-shaped cutouts (Two) 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 located diagonally. 3G3JV-A2001-A (0.1 kW), 3G3JV-A2002-A (0.25 kW), 3G3JV-A2004-A (0.55 kW), and 3G3JV-A2007-A (1.1 kW) 3G3JV-AB001-A (0.1 kW), 3G3JV-AB002-A (0.25 kW), and 3G3JV-AB004-A (0.55 kW)
1-4
Overview
H Digital Operator
Chapter 1
Data display
Indicators (Setting/Monitor item indicators)
Keys
FREQ adjuster
Appearance
Name Data display
Function Displays relevant data items, such as frequency reference, output frequency, and parameter set values. Sets the frequency reference within a range between 0 Hz and the maximum frequency.
FREQ adjuster
FREF indicator FOUT indicator IOUT indicator MNTR indicator F/R indicator
LO/RE indicator
The frequency reference can be monitored or set while this indicator is lit. The output frequency of the Inverter can be monitored while this indicator is lit. The output current of the Inverter can be monitored while this indicator is lit. The values set in U01 through U10 are monitored while this indicator is lit. The direction of rotation can be selected while this indicator is lit when operating the Inverter with the RUN Key. The operation of the Inverter through the Digital Operator or according to the set parameters is selectable while this indicator is lit. 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. 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. Switches the setting and monitor item indicators in sequence. Parameter being set will be canceled if this key is pressed before entering the setting. Increases multi-function monitor numbers, parameter numbers, and parameter set values. Decreases multi-function monitor numbers, parameter numbers, and parameter set values.
PRGM indicator
Mode Key
Increment Key Decrement Key
1-5
Overview
Appearance Name Enter Key
Chapter 1
Function Enters multi-function monitor numbers, parameter numbers, and internal data values after they are set or changed. Starts the Inverter running when the 3G3JV is in operation with the Digital Operator. 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.)
RUN Key STOP/RESET Key
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
2
Chapter 2 Design
2-1 2-2 Installation Wiring
Design 2-1 Installation
Chapter 2
2-1-1 Dimensions
D 3G3JV-A2001-A to 3G3JV-A2007-A (0.1 to 0.75 kW) 3-phase 230-V AC Input 3G3JV-AB001-A to 3G3JV-AB004-A (0.1 to 0.4 kW) Single-phase 230-V AC Input
t
Rated voltage g 3-phase 230 V AC
Model 3G3JVA2001-A A2002-A A2004-A A2007-A AB001-A AB002-A AB004-A
Dimensions (mm) D 70 70 102 122 70 70 112 3 3 5 5 3 3 5 t
Weight ( g) g (kg) Approx. 0.5 Approx. 0.5 Approx. 0.8 Approx. 0.9 Approx. 0.5 Approx. 0.5 Approx. 0.9
Single-phase 230 V AC g
2-2
Design
Chapter 2
D 3G3JV-A2015-A to 3G3JV-A2022-A (1.5 to 2.2 kW) 3-phase 230-V AC Input 3G3JV-AB007-A to 3G3JV-AB015-A (0.75 to 1.5 kW) Single-phase 230-V AC Input 3G3JV-A4002-A to 3G3JV-A4022-A (0.2 to 2.2 kW) 3-phase 460-V AC Input
Two, 5-dia. holes
Rated voltage g 3-phase 230 V AC Single-phase 230 V AC g 3-phase 460 V AC
Model 3G3JVA2015-A A2022-A AB007-A AB015-A A4002-A A4004-A A4007-A A4015-A A4022-A
Dimensions (mm) D 129 154 129 154 81 99 129 154 154
Weight ( g) g (kg) Approx. 1.3 Approx. 1.5 Approx. 1.5 Approx. 1.5 Approx. 1.0 Approx. 1.1 Approx. 1.5 Approx. 1.5 Approx. 1.5
2-3
Design
D 3G3JV-A2037-A (3.7 kW) 3-phase 230-V AC Input 3G3JV-A4037-A (3.7 kW) 3-phase 460-V AC Input
Two, 5-dia. holes
Chapter 2
128
118
5 6 128 140 8.5 D
5
Rated voltage g 3-phase 230 V AC 3-phase 460 V AC
Model 3G3JVA2037-A A4037-A
Dimensions (mm) D 161 161
Weight ( g) g (kg) Approx. 2.1 Approx. 2.1
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. Provide an external emergency stopping device that allows an instantaneous stop of operation and power interruption. Not doing so may result in injury. Be sure to install the product in the correct direction and provide specified clearances between the Inverter and control panel or with other devices. Not doing so may result in fire or malfunction. Do not allow foreign objects to enter inside the product. Doing so may result in fire or malfunction. Do not apply any strong impact. Doing so may result in damage to the product or malfunction.
!
WARNING
! Caution
! Caution
! Caution
2-4
Design
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)
Chapter 2
· 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.
100 mm min.
Air
Inverter
Inverter
Inverter
Side
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
Design
H Protecting Inverter from Foreign Matter during Installation
Chapter 2
· 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
Design 2-2
!
Chapter 2
Wiring
Wiring must be performed only after confirming that the power supply has been turned OFF. Not doing so may result in electrical shock. Wiring must be performed by authorized personnel. Not doing so may result in electrical shock or fire. Be sure to confirm operation only after wiring the emergency stop circuit. Not doing so may result in injury. Always connect the ground terminals to a ground of 100 or less for the 200-V AC class, or 10 or less for the 400-V AC class. Not connecting to a proper ground may result in electrical shock. Install external breakers and take other safety measures against short-circuiting in external wiring. Not doing so may result in fire. Confirm that the rated input voltage of the Inverter is the same as the AC power supply voltage. An incorrect power supply may result in fire, injury, or malfunction. Connect the Braking Resistor and Braking Resistor Unit as specified in the manual. Not doing so may result in fire. Be sure to wire correctly and securely. Not doing so may result in injury or damage to the product. Be sure to firmly tighten the screws on the terminal block. Not doing so may result in fire, injury, or damage to the product. Do not connect an AC power to the U, V, or W output. Doing so may result in damage to the product or malfunction.
WARNING
!
WARNING
!
WARNING
!
WARNING
! Caution
! Caution
! Caution
! Caution
! Caution
! Caution
2-7
Design 2-2-1 Removing and Mounting the Covers
Chapter 2
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
Design
D Removing the Optional Cover
Chapter 2
· 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
Design
H Arrangement of Control Circuit Terminals
Chapter 2
H Arrangement of Main Circuit Terminals
D 3G3JV-A2001-A to 3G3JV-A2007-A 3G3JV-AB001-A to 3G3JV-AB004-A Main Circuit Input Terminals (Upper Side) D 3G3JV-A2015-A to 3G3JV-A2037-A 3G3JV-AB007-A to 3G3JV-AB015-A 3G3JV-A4002-A to 3G3JV-A4037-A Main Circuit Input Terminals (Upper Side)
Main Circuit Output Terminals (Lower Side)
Main Circuit Output Terminals (Lower Side)
2-10
Design
H Main Circuit Terminals
Symbol R/L1 S/L2 T/L3 U/T1 V/T2 W/T3 +1 +2 Connection terminals +1 and +2: DC reactor connection terminals +1 and : DC power supply input terminals Ground terminal Motor output terminals Name Power supply input terminals Description 3G3JV-A2j: 3-phase 200 to 230 V AC 3G3JV ABj Si l h 3G3JV-ABj: Single-phase 200 t 240 V AC to 3G3JV-A4j: 3-phase 380 to 460 V AC
Chapter 2
Note Connect single-phase input to terminals R/L1 and S/L2. 3-phase power supply output for driving motors. 3G3JV-A2j: 3-phase 200 to 230 V AC 3G3JV-ABj: 3-phase 200 to 240 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 . (Terminal +1 is a positive terminal ) terminal.)
Be sure to ground the terminal under the following conditions. 3G3JV-A2j: Ground at a resistance of 100 or less. 3G3JV-ABj: Ground at a resistance of 100 or less. 3G3JV-A4j: Ground at a resistance of 10 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 motor frame ground.
Note The maximum output voltage corresponds to the power supply input voltage of the Inverter.
H Control Circuit Terminals
Symbol Input S1 S2 S3 Name 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 Frequency reference input Frequency reference common Function Signal level Forward at ON. Stops at Photocoupler 8 mA at 24 V DC OFF. NPN is the default setting for these terminals. Wire them by providing a th b idi Set by parameter n37 common ground. No (External fault: Normally external power supply is open) required. To provide an rovide Set by parameter n38 external power supply and (Fault reset) g wire the terminals through a common positive line, i i li Set by parameter n39 however, set the SW7 to (Multi-step reference 1) PNP and make sure that Common for S1 through the power supply is at 24 V S5 DC ±10%. DC power supply for fre- 20 mA at 12 V DC quency reference use 0 to 10 V DC Input terminal for fre( 0 ) (input impedance: 20 k) quency reference use Common for frequency reference use Set by parameter n36 (Reverse/Stop) Note
S4 S5 SC FS FR FC
2-11
Design
Symbol Output MA MB MC AM AC Name Multi-function contact output (Normally open) Multi-function contact output (Normally closed) Multi-function contact output common Analog monitor output Analog monitor output common Function Set by parameter n40 (during running) ( g g)
Chapter 2
Signal level Relay output 1 A max. at 30 V DC C 1 A max. at 250 V AC
Common for MA and MB use Set by parameter n44 (Output frequency) Common for AM use
2 mA max. at 0 to 10 V DC
Note 1. Depending on the parameter settings, various functions can be selected for multi-function inputs 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.
Selector Control circuit terminal block
2-12
Design
D Selecting Sequence Input Method
· By using SW7, NPN or PNP input can be selected as shown below.
Chapter 2
S1 to 5
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 Current input SW8 setting V (OFF) I (ON) Frequency reference selection (parameter n03) Set value 2 Set value 3 or 4
2-13
Design 2-2-3 Standard Connections
DC reactor (optional) Noise Filter
Chapter 2
3-phase 230 V AC Single-phase 230 V AC (see note 1) 3-phase 460 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 NC Common
Sequence input common Frequency reference power supply 20 mA at +12 V Frequency reference input
Frequency reference common
Analog monitor output Analog monitor output common
FREQ adjuster
(2 k, 1/4 W min.)
Note 1. Connect single-phase 230 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) RUN input (Operates with the stop switch and RUN switch closed.) Direction switch 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
Design 2-2-4 Wiring around the Main Circuit
Chapter 2
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 230-V AC Model
Model 3G3JVTerminal symbol Terminal screw Screw tightening torque (NSm) Wire size (mm2) Recomme Molded-c nded wire ase size circuit (mm2) breaker capacity (A) 2 5
A2001-A
R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3
M3.5
0.8 to 1.0
0.75 to 2
A2002-A
M3.5
0.8 to 1.0
0.75 to 2
2
5
A2004-A
M3.5
0.8 to 1.0
0.75 to 2
2
5
A2007-A
M3.5
0.8 to 1.0
0.75 to 2
2
10
A2015-A
M3.5
0.8 to 1.0
2 to 5.5
2
20
A2022-A
M3.5
0.8 to 1.0
2 to 5.5
3.5
20
A2037-A
M4
1.2 to 1.5
2 to 5.5
5.5
30
2-15
Design
D Single-phase 230-V AC Model
Model 3G3JVTerminal symbol Terminal screw Terminal torque (NSm) 0.8 to 1.0 Wire size (mm2)
Chapter 2
Recomme Circuit nded wire breaker size capacity (mm2) (A) 2 5
AB001-A
R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3
M3.5
0.75 to 2
AB002-A
M3.5
0.8 to 1.0
0.75 to 2
2
5
AB004-A
M3.5
0.8 to 1.0
0.75 to 2
2
10
AB007-A
M3.5
0.8 to 1.0
2 to 5.5
3.5 2
20
AB015-A
M3.5
0.8 to 1.0
2 to 5.5
5.5 2
20
D 3-phase 460-V AC Model
Model 3G3JVTerminal symbol Terminal screw Terminal torque (NSm) 0.8 to 1.0 Wire size (mm2) Recomme nded wire size (mm2) 2 Circuit breaker capacity (A) 5
A4002-A
R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3 R/L1, S/L2, T/L3, , +1, +2, U/T1, V/T2, W/T3
M3.5
2 to 5.5
A4004-A
M3.5
0.8 to 1.0
2 to 5.5
2
5
A4007-A
M3.5
0.8 to 1.0
2 to 5.5
2
5
A4015-A
M3.5
0.8 to 1.0
2 to 5.5
2
10
A4022-A
M4
1.2 to 1.5
2 to 5.5
2
10
A4037-A
M4
1.2 to 1.5
2 to 5.5
2 3.5
20
2-16
Design
H Wiring on the Input Side of the Main Circuit
D Installing a Molded-case Circuit Breaker
Chapter 2
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
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
Power supply Noise Filter
3G3JV 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
Design
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.
Chapter 2
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 Noise Filter
Signal line
Induction noise Controller
Radio noise AM radio
2-19
Design
Induction Noise: Radio Noise:
Chapter 2
Electromagnetic induction generates noise on the signal line, causing the controller to malfunction. Electromagnetic waves from the Inverter and cables cause the broadcasting radio 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 Metal pipe
30 cm min. Signal line 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 3G3JV Noise Filter SYSDRIVE Noise Filter Metal pipe
Power supply
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
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 Carrier frequency 50 m or less 10 kHz max. 100 m or less 5 kHz max. More than 100 m 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 or less 400-V Inverter: separate ground,10 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 minimize 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.
2-21
Design
· When using more than one Inverter, be careful not to loop the ground wire.
Chapter 2
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
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
Design
Inverter
Chapter 2
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
Time Current A current flows into the capacitors. The current is different from the voltage in waveform.
Time
2-24
Design
D Countermeasures with Reactors against Harmonics Generation DC/AC Reactors
Chapter 2
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
DC reactor (optional)
Power supply
3-phase 200 V AC Single-phase 200 V AC 3-phase 400 V AC
SYSDRIVE 3G3JV
· With DC and AC Reactors
DC reactor (optional)
Power supply
3-phase 200 V AC Single-phase 200 V AC 3-phase 400 V AC
AC reactor (optional)
SYSDRIVE 3G3JV
2-25
Design
Reactor Effects
Chapter 2
Harmonics are effectively suppressed when the DC reactor is used with the AC reactor as shown in the following table.
Harmonics suppression i method No reactor AC reactor DC reactor DC and AC reactors Harmonic generation rate (%) 5th harmonic 65 38 30 28 7th harmonic 41 14.5 13 9.1 11th harmonic 8.5 7.4 8.4 7.2 13th harmonic 7.7 3.4 5 4.1 17th harmonic 4.3 3.2 4.7 3.2 19th harmonic 3.1 1.9 3.2 2.4 23rd harmonic 2.6 1.7 3.0 1.6 25th harmonic 1.8 1.3 2.2 1.4
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 Multi-function Contact Output (MA, MB, and MC)
Terminal screw size M3 Tightening Wire torque N S m 0.5 to 0.6 Single wire Stranded wire Wire size 0.5 to 1.25 (20 to 16) 0.5 to 1.25 (20 to 16) Recommend Cable ed wire size 0.75 (18) Cable with polyethylene sheath
Sequential Input (S1 through S5 and SC) and Analog Monitor Output (AM or AC)
Terminal screw size M2 Tightening Wire torque N S m 0.22 to 0.25 Single wire Stranded wire Wire size 0.5 to 1.25 (20 to 16) 0.5 to 0.75 (20 to 18) Recommend Cable ed wire size 0.75 (18) Cable with polyethylene sheath
Frequency Reference Input (FR, FS, and FC)
Terminal screw size M2 Tightening Wire torque N S m 0.22 to 0.25 Single wire Stranded wire Wire size 0.5 to 1.25 (20 to 16) 0.5 to 0.75 (20 to 18) Recommend Cable ed ire size 0.75 (18) Special cable with y y polyethylene sheath and shield for measurement use
2-26
Design
D Solderless Terminal Size
Chapter 2
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 mm2 when using the following solderless terminal.
1.0 dia.
Model: Phoenix Contact's A1 0.5-8 WH
(Size: mm)
2.6 dia.
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 approximately 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.
2-27
Design 2-2-6 Conforming to EC Directive
Chapter 2
The following description provides the wiring method of the Inverter to meet EC 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 Noise Filter Clamp core
3-phase 200 V AC Single-phase 200 V AC 3-phase 400 V AC
D Control Circuit Terminals
Multi-function contact output
Forward/Stop
Multi-function input 1 (S2) Multi-function input 2 (S3) Multi-function input 3 (S4) Multi-function input 4 (S5)
NO NC Common
Sequence input common
Analog-monitor output
Analog monitor output common
Frequency reference power supply at +12 V FREQ adjuster
Frequency reference input
Frequency reference common
(2 k, 1/4 W min.)
Note I/O signals can be connected to a single shielded cable.
2-28
Design
D Wiring the Power Supply
Make sure that the Inverter and Noise Filter are grounded together.
Chapter 2
· 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 230-V AC Noise Filter
Inverter Model 3G3JVA2001-A/A2002-A/ A2004-A/A2007-A A2015-A/A2022-A A2037-A 3-phase 230-V AC Noise Filter (Rasmi) Model RASMI Rated current (A) RS2010J7 10 RS2020J7 RS2030J7 16 26
Single-phase 230-V AC Noise Filter
Inverter Model 3G3JVAB001-A/AB002-A/AB004-A AB007-A/AB015-A Single-phase 230-V Noise Filter (Rasmi) Model RASMI Rated current (A) RS1010J7 10 RS1020J7 20
3-phase 460-V AC Noise Filter
Inverter Model 3G3JVA4002-A/A4004-A A4007-A/A4015-A/A4022-A A4037-A 3-phase 230-V AC Noise Filter (Rasmi) Model RASMI Rated current (A) RS3005J7