Manual No.
I63E-EN-01
Manual No. I63E-EN-01
VS mini J7
USER’S MANUAL
OMRON YASKAWA MOTION CONTROL B.V. – Wegalaan 65 – 2132 JD Hoofddorp – The Netherlands
phone: + 31 (0) 23 568 74 00 – fax: + 31 (0) 23 568 74 88 – www.omronyaskawa.com
Note: Specifications subject to change without notice.
Manual No. I63E-EN-01
VS mini J7
Compact General Purpose Inverter
USER’S Manual
Thank you for choosing this VARISPEED J7-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-YASKAWA Inverters,
please read this USER’S MANUAL (Cat. No. I63-EN-01) 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.
• Precautions on the dangers of high-voltage equipment.
• 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:
• Has the correct product been delivered (i.e., the correct model number
and specifications)?
• Has the product been damaged in shipping?
• Are any screws or bolts loose?
Qnisz ING Krzysztof Kunisz
05-124 Janówek Pierwszy, ul. Nowodworska 96
tel./fax: +48 22 750 51 36, tel.kom: +48 508 100 781
adres e-mail : Qnisz@Qnisz.pl
www.qnisz.pl
II
Notice
OMRON-YASKAWA 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-YASKAWA Product References
All OMRON-YASKAWA products are capitalized in this manual. The word
“Unit” is also capitalized when it refers to an OMRON-YASKAWA 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-YASKAWA 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.
III
General Precautions
Observe the following precautions when using the VARISPEED 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-YASKAWA 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.
! 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.
! Caution
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.
• Locations subject to direct sunlight.
• Locations subject to temperatures or humidity outside the range specified
in the specifications.
• Locations subject to condensation as the result of severe changes in
temperature.
• Locations subject to corrosive or flammable gases.
• Locations subject to exposure to combustibles.
• Locations subject to dust (especially iron dust) or salts.
• Locations subject to exposure to water, oil, or chemicals.
• Locations subject to shock or vibration.
! 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 following locations. Not doing so may result in equipment damage.
• Locations subject to static electricity or other forms of noise.
• Locations subject to strong electromagnetic fields and magnetic fields.
• Locations subject to possible exposure to radioactivity.
• Locations close to power supplies.
IV
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
malfunction.
! 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
clearances 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 W or less for the
200V AC class, or 10 W 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 shortcircuiting 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 supply 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.
V
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
! WARNING
! WARNING
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.
! 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 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 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.
VI
Maintenance and Inspection Precautions
! WARNING
! WARNING
Do not touch the Inverter terminals while the power is being supplied.
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 replace fans while power is being supplied. Doing so may result in injury,
damage to the product, or malfunction.
Warning Labels
Warning labels are pasted on the product as shown in the following
illustration. Be sure to follow the instructions given there.
Warning Labels
VII
Contents of Warning
• For CIMR-J7AZ20P1 to 20P7 (0.1 to 0.75 kW) and CIMR-J7AZB0P1 to
B0P4 (0.1 to 0.4 kW):
• For CIMR-J7AZ21P5 to A4P0 (1.5 to 4.0 kW), CIMR-J7AZB0P7 to B1P5
(0.75 to 1.5 kW), and CIMR-J7AZ40P2 to 44P0 (0.2 to 3.7 kW):
Checking Before Unpacking
Checking the Product
On delivery, always check that the delivered product is the VARISPEED J7
Inverter that you ordered.
Should you find any problems with the product, immediately contact your
nearest local sales representative.
Checking the Nameplate
Checking the Model
CIMR—J7AZ20P1
Inverter
J7 series
Max. applicable motor output
0P1: 0.1 kW
4P0: 4.0 kW
A: With digital operator (with potentiometer)
Z: European standard
specifications
VIII
[
]
"P" indicates a decimal
point
Voltage
B: Single-phase 200 VAC
2: Three-phase 200 VAC
4: Three-phase 400 VAC
Maximum Applicable Motor Capacity
0P1
0P2
0P4
0P7
1P5
2P2
4P0
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
4.0 (4.0) kW
Note
The figures in parentheses indicate capacities for motors used outside Japan.
Voltage Class
2
B
4
Three-phase 200-V AC input (200-V class)
Single-phase 200-V AC input (200-V class)
Three-phase 400-V AC input (400-V class)
Checking for Damage
Check the overall appearance and check for damage or scratches resulting
form transportation.
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
Chapter 5 Basic Operation
Chapter 6 Advanced Operation
Chapter 7 Communications
Chapter 8 Maintenance Operations
Chapter 9 Specifications
Chapter 10 List of Parameters
Chapter 11 Using the Inverter for a
Motor
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.
Describes the RS-422/485 Communications Unit and the general-purpose
RS-422/485 communications functions provided by the Inverter, including
connection methods.
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.
Read and Understand this Manual
Please read and understand this manual before using the product. Please
consult your OMRON-YASKAWA representative if you have any questions or
comments.
IX
Warranty and Limitations of Liability
WARRANTY
OMRON-YASKAWA’s exclusive warranty is that the products are free from defects in materials and workmanship for a
period of one year (or other period if specified) from date of sale by OMRON-YASKAWA.
OMRON-YASKAWA MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY
BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON-YASKAWA SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH
CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON-YASKAWA for any act exceed the individual price of the product on which
liability is asserted.
IN NO EVENT SHALL OMRON-YASKAWA BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS
REGARDING THE PRODUCTS UNLESS OMRON-YASKAWA’S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE
PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE,
MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON-YASKAWA shall not be responsible for conformity with any standards, codes, or regulations that apply to the
combination of products in the customer’s application or use of the products.
At the customer’s request, OMRON-YASKAWA will provide applicable third party certification documents identifying
ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete
determination of the suitability of the products in combination with the end product, machine, system, or other application
or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an
exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the
products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not
described in this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment,
amusement machines, vehicles, safety equipment, and installations subject to separate industry or government
regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY
WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND
THAT THE OMRON-YASKAWA PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE
WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON-YASKAWA shall not be responsible for the user’s programming of a programmable product, or any consequence
thereof.
X
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt,
special model numbers may be assigned to fix or establish key specifications for your application on your request. Please
consult with your OMRON-YASKAWA representative at any time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are
shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute
a warranty. It may represent the result of OMRON-YASKAWA’s test conditions, and the users must correlate it to actual
application requirements. Actual performance is subject to the OMRON-YASKAWA Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical, or proofreading errors, or omissions.
XI
XII
Table of Contents
CHAPTER 1
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1
Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2
Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
CHAPTER 2
Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2-1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-2
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CHAPTER 3
Preparing for Operation and Monitoring . . . . . . . . . . 33
3-1
Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3-2
Outline of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
CHAPTER 4
Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4-1
Procedure for Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4-2
Operation Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
CHAPTER 5
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5-1
Initial Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5-2
V/f Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
5-3
Setting the Local/Remote Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5-4
Selecting the Operation Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
5-5
Setting the Frequency Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
5-6
Setting the Acceleration/Deceleration Time . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5-7
Selecting the Reverse Rotation-prohibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5-8
Selecting the Interruption Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5-9
Multi-function I/0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5-10 Analog Monitor Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
CHAPTER 6
Advanced Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
6-1
Setting the Carrier Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
6-2
DC Injection Braking Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6-3
Stall Prevention Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
6-4
Overtorque Detection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
6-5
Torque Compensation Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6-6
Slip Compensation Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
6-7
Other Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
XIII
Table of Contents
CHAPTER 7
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
7-1
RS-422/485 Communications Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
7-2
Inverter Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
7-3
Message Communications Basic Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
7-4
DSR Message and Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
7-5
Enter Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
7-6
Setting the Communications Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
7-7
Register Number Allocations in Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
7-8
Communications Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
7-9
Self-diagnostic Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
CHAPTER 8
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
8-1
Protective and Diagnostic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
8-2
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
8-3
Maintenance and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
CHAPTER 9
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
9-1
Inverter Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
9-2
Specifications of Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
9-3
Option Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
CHAPTER 10
List of Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
CHAPTER 11
Using the Inverter for a Motor. . . . . . . . . . . . . . . . . . 159
XIV
CHAPTER 1
Overview
1-1
Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
1-2
Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
1
Function
1-1
Chapter 1-1
Function
The compact simple VARISPEED J7-Series Inverter ensures greater ease of
use than any conventional model. The VARISPEED J7 Inverter meets EC
Directives and UL/cUL standard requirements for worldwide use.
VARISPEED J7 Inverter Models
The following 3-phase and single-phase 200-V AC-class, and 3-phase 400-V
AC-class J7AZ models are available.
Rated voltage
Protective structure
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)
Note
Maximum applied
motor capacity kW
Model
0.1
0.25
0.55
1.1
1.5
2.2
4.0
0.1
0.25
0.55
1.1
1.5
0.37
0.55
1.1
CIMR-J7AZ20P1
CIMR-J7AZ20P2
CIMR-J7AZ20P4
CIMR-J7AZ20P7
CIMR-J7AZ21P5
CIMR-J7AZ22P2
CIMR-J7AZ24P0
CIMR-J7AZB0P1
CIMR-J7AZB0P2
CIMR-J7AZB0P4
CIMR-J7AZB0P7
CIMR-J7AZB1P5
CIMR-J7AZ40P2
CIMR-J7AZ40P4
CIMR-J7AZ40P7
1.5
2.2
4.0
CIMR-J7AZ41P5
CIMR-J7AZ42P2
CIMR-J7AZ44P0
It is not possible to connect a Braking Resistor or Braking Unit to a J7-series
Inverter. Select an Inverter from another series if the application requires
braking control.
International Standards (EC Directives and UL/cUL Standards)
The J7 Inverter meets the EC Directives and UL/cUL standard requirements
for worldwide use.
Classification
EC Directives
EMC Directive
Low-Voltage
Directive
UL/cUL
Versatile
Easy-to-use
Functions
Applicable standard
EN50081-2 and EN5008-2
prEN50178
UL508C
• Incorporates the functions and operability ensured by the conventional
J7AZ 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.
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.
2
Nomenclature
1-2
Chapter 1-2
Nomenclature
Panel
Digital operator
Function display LEDs
Selected function is lit (see the
functions below). Its data is
displayed on data display.
Data display
Operation key
Display selection key
Switch functions among function
display LEDs.
Press to run the motor. The RUN
light is ON while running.
Alarm LED
Enter key
Enter data when setting constants.
After selecting constant no. at
PRGM mode, data are displayed.
Run LED
Increment key
Frequency setting volume
Increase constant no. or data.
Set operational frequency with
volume.
Decrement key
Decrease constant no. or data.
Stop/Reset key
Press to stop the motor. If fault
occurs, reset the inverter.
Note
1. The front cover functions as a terminal cover. The Digital Operator Unit
cannot be removed.
2. Instead of mounting holes, each of the following models has two U-shaped
cutouts located diagonally.
CIMR-J7AZ20P1 (0.1 kW),
CIMR-J7AZ20P2 (0.25 kW),
CIMR-J7AZ20P4 (0.55 kW), and
CIMR-J7AZ20P7 (1.1 kW)
CIMR-J7AZB0P1 (0.1 kW),
CIMR-J7AZB0P2 (0.25 kW), and
CIMR-J7AZB0P4 (0.55 kW)
3
Nomenclature
Chapter 1-2
Digital Operator
Indicators
(Setting/Monitor
item indicators)
Data display
Keys
Appearance
FREQ adjuster
Name
Data display
Function
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.
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.
LO/RE indicator
PRGM indicator
Mode Key
Increment Key
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 J7AZ 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
4
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.
CHAPTER 2
Design
2-1
2-2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
2-1-1
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
2-1-2
Installations Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
2-2-1
11
Removing and Mounting the Covers . . . . . . . . . . . . . . . . . . . . . . . .
2-2-2
Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
2-2-3
Standard Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
2-2-4
Wiring around the Main Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
2-2-5
Wiring Control Circuit Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . .
27
2-2-6
Conforming to EC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29
5
Installation
2-1
Chapter 2-1
Installation
2-1-1
Dimensions
CIMR-J7AZ20P1 to CIMR-J7AZ20P7 (0.1 to 0.75 kW) 3-phase 200-V AC Input
128
118
CIMR-J7AZB0P1 to CIMR-J7AZB0P4 (0.1 to 0.4 kW) Single-phase 200-V AC Input
t
5
D1
6
56
8.5
D
68
Rated voltage
3-phase 200 V AC
Single-phase 200 V AC
6
Model CIMR-J7AZ20P1
20P2
20P4
20P7
B0P1
B0P2
B0P4
Dimensions (mm)
D
D1
t
70
10
3
70
10
3
102
42
5
122
62
5
70
10
3
70
10
3
112
42
5
Weight (kg)
Approx. 0.5
Approx. 0.5
Approx. 0.8
Approx. 0.9
Approx. 0.5
Approx. 0.5
Approx. 0.9
Installation
Chapter 2-1
CIMR-J7AZ21P5 to CIMR-J7AZ22P2 (1.5 to 2.2 kW) 3-phase 200-V AC Input
CIMR-J7AZB0P7 to CIMR-J7AZB1P5 (0.75 to 1.5 kW) Single-phase 200-V AC Input
CIMR-J7AZ40P2 to CIMR-J7AZ42P2 (0.2 to 2.2 kW) 3-phase 400-V AC Input
128
118
Two, 5-dia. holes
5
5
D1
6
8.5
96
D
108
Rated voltage
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
Model CIMR-J7AZ21P5
22P5
B0P7
B1P5
40P2
40P4
40P7
41P5
42P2
129
154
129
154
81
99
129
154
154
Dimensions (mm)
D
D1
64
64
64
64
16
34
64
64
64
Weight (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
7
Installation
Chapter 2-1
CIMR-J7AZ24P0 (4.0 kW) 3-phase 200-V AC Input
CIMR-J7AZ44P0 (4.0 kW) 3-phase 400-V AC Input
128
118
Two, 5-dia. holes
5
D1
128
6
8.5
5
D
140
Rated voltage
3-phase 200 V AC
3-phase 400 V AC
2-1-2
Model CIMR-J7AZ24P0
44P0
Dimensions (mm)
D
D1
161
71
161
71
Weight (kg)
Approx. 2.1
Approx. 2.1
Installations 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
clearances 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.
8
Installation
Chapter 2-1
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.
Direction
Install the Inverter on a vertical surface so that the characters on the
nameplate are oriented upward.
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.
Inverter
W
Inverter
W
Inverter
W
Air
Side
100 mm min.
Air
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.
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.
9
Wiring
2-2
Chapter 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
200V AC class, or 10 Ω or less for the 400V AC class. Not connecting to a
proper ground may result in electrical shock.
! Caution
Install external breakers and take other safety measures against shortcircuiting 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 supply 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.
10
Wiring
2-2-1
Chapter 2-2
Removing and Mounting the Covers
It is necessary to remove the front cover, optional cover, top protection cover,
and thebottom 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.
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.
2
1
Removing the Top and Bottom Protection Covers and Optional Cover
Removing the Top and Bottom Protection Covers
• After removing the front cover, pull the top and bottom protection covers in
the arrow 1 directions.
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.
1
Positon A
1
2
11
Wiring
2-2-2
Chapter 2-2
Terminal Block
Before wiring the terminal block, be sure to remove the front cover, top
protection cover, and the bottom protection cover.
Position of Terminal Block
Ground terminal
Main circuit input terminals
Control circuit terminals
Main circuit output terminals
Ground terminal
Arrangement of Control Circuit Terminals
Arrangement of Main Circuit Terminals
• CIMR-J7AZ20P1 to CIMR-J7AZ20P7
CIMR-J7AZB0P1 to CIMR-J7AZB0P4
• CIMR-J7AZ21P5 to CIMR-J7AZ24P0
CIMR-J7AZB0P7 to CIMR-J7AZB4P0
CIMR-J7AZ40P2 to CIMR-J7AZ44P0
12
Main Circuit Input Terminals
(Upper Side)
Main Circuit Input Terminals
(Upper Side)
Main Circuit Output Terminals
(Lower Side)
Main Circuit Output Terminals
(Lower Side)
Wiring
Chapter 2-2
Main Circuit Terminals
Symbol
R/L1
Name
Power Supply input terminals
Description
CIMR-J7AZ2_: 3-phase 200 to 230 V AC
CIMR-J7AZB_: Single-phase 200 to 240 V AC
CIMR-J7AZ4_: 3-phase 380 to 460 V AC
Note Connect single-phase input to terminals R/L1 and S/L2.
Motor output terminals
3-phase power supply output for driving motors.
CIMR-J7AZ2_: 3-phase 200 to 230 V AC
CIMR-J7AZB_: 3-phase 200 to 240 V AC
CIMR-J7AZ4_: 3-phase 380 to 460 V AC
Connection terminals +1 and +2:
DC reactor connection terminals
+1 and –:
DC power supply input terminals
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.)
Ground terminal
Be sure to ground the terminal under the following conditions.
CIMR-J7AZ2_: Ground at a resistance of 100 Ω or less.
CIMR-J7AZB_: Ground at a resistance of 100 Ω or less.
CIMR-J7AZ4_: 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
motor frame ground.
S/L2
T/L3
U/T1
V/T2
W/T3
+1
+2
–
Note The maximum output voltage corresponds to the power supply input voltage
of the Inverter.
13
Wiring
Chapter 2-2
Control Circuit Terminals
Symbol
Input
S1
Output
Name
Forward/Stop
Function
Forward at ON. Stops at OFF.
S2
Multi-function input 1 (S2)
Set by parameter n36
(Reverse/Stop)
S3
Multi-function input 2 (S3)
Set by parameter n37
(Fault reset)
S4
Multi-function input 3 (S4)
Set by parameter n38
(External fault:Normally open)
S5
Multi-function input 4 (S5)
Set by paramter n39
(Multi-step reference 1)
SC
Sequence input common
Common for S1 through S5
FS
Frequency reference
power supply
DC power supply for frequency
reference use
20 mA at 12 V DC
FR
Frequency reference input
Input terminal for frequency
reference use
0 to 10 V DC
(input impedance: 20 kΩ)
FC
Frequency reference common Common for frequency
reference use
MA
Multi-function contact output
(Normally open)
MB
Multi-function contact output
(Normally closed)
MC
Multi-function contact output
common
Common for MA and MB use
AM
Analog monitor output
Set by parameter n44
(Output frequency)
AC
Analog monitor output
common
Common for AM use
Note
Set by parameter n40
(during running)
Signal level
Photocoupler
8 mA at 24 V DC
Note NPN is the default setting
for theses terminals. Wire
them by providing a common ground. No external
power supply is required. To
provide an external power
supply and wire the terminals through a common
positive line, however, set
the SW7 to PNP and make
sure that the power supply
is at 24 V DC ±10%.
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
1. Depending on the parameter settings, various functions can be selected
for multi-function inputs and multi-function contacts outputs.
2. Functions in parentheses are default settings.
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.
SW7
SW7
SW8
SW8
Selector
Control circuit
terminal block
14
Wiring
Selecting Frequency
Reference Input Method
Chapter 2-2
By using SW7, NPN or PNP input can be selected as shown below.
24V
NPN
SW7
GND
S1 to
S1
to 55
3.3k
0.1µ
360
SC
GND
24V
PNP
SW7
GND
S1
to55
S1 to
3.3k
0.1µ
24VVDC
24
DC
(+10%)
(+10%)
360
SC
GND
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
15
Wiring
2-2-3
Chapter 2-2
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
Multi-function contact output
Forward/Stop
NO
Multi-function input 1 (S2)
NC
Multi-function input 2 (S3)
Common
Multi-function input 3 (S4)
Multi-function input 4 (S5)
Sequence input common
Frequency reference power
supply 20 mA at +12 V
FREQ
adjuster
Analog monitor output
Analog monitor output common
Frequency reference input
Frequency reference common
(2kΩ, 1/4 W min.)
Note
1. Connect single-phase 200 V AC to terminals R/L1 and S/L2 of the CIMRJ7AZB_.
2. The braking resistor cannot be connected because no braking transistor is
incorporated.
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
16
Set parameter n37 for 3-wire sequence input.
Wiring
2-2-4
Chapter 2-2
Wiring around the Main Circuit
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.
3-phase 200-V AC Model
Model
CIMR-J7AZ-
Terminal symbol
Terminal
screw
Screw
tightening
torque
(N•m)
Wire size
(mm2)
20P1
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
ReMoldedcommended case circuit
wire size
breaker
capacity (A)
(mm2)
2
5
20P2
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
2
5
20P4
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
2
5
20P7
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
2
10
21P5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
0.8 to 1.0
2 to 5.5
2
20
22P2
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
0.8 to 1.0
2 to 5.5
3.5
20
24P0
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
17
Wiring
Chapter 2-2
Single-phase 200-V AC Model
Model
CIMR-J7AZ-
Terminal symbol
Terminal
screw
Terminal
torque
(N•m)
Wire size
(mm2)
B0P1
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
ReCircuit
commended
breaker
wire size
capacity
(A)
(mm2)
2
5
B0P2
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
2
5
B0P4
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
2
10
B0P7
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
0.8 to 1.0
2 to 5.5
3.5
20
2
B1P5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
0.8 to 1.0
2 to 5.5
5.5
20
2
3-phase 400-V AC Model
Model
CIMR-J7AZ-
Terminal symbol
Terminal
screw
Terminal
torque
(N•m)
Wire size
(mm2)
40P2
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
0.8 to 1.0
2 to 5.5
ReCircuit
commended
breaker
wire size
capacity
(A)
(mm2)
2
5
40P4
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
0.8 to 1.0
2 to 5.5
2
5
40P7
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
0.8 to 1.0
2 to 5.5
2
5
41P5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
0.8 to 1.0
2 to 5.5
2
10
42P2
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M4
1.2 to 5.5
2 to 5.5
2
10
44P0
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M4
1.2 to 1.5
2 to 5.5
2
20
3.5
18
Wiring
Chapter 2-2
Wiring on the Input Side of the Main Circuit
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
3-phase/Single-phase
200 V AC
3-phase 400 V AC
Power
supply
MCCB
R/L1
S/L2
T/L3
MB
OFF
ON
MC
Installing a Ground
Fault Interrupter
Fault output
(NC)
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-frequencyleakage 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.
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.
• 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.
19
Wiring
Chapter 2-2
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).
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.
Installing a
Surge Absorber
Always use a surge absorber or diode for the inductive loads near the Inverter.
These inductive loadsinclude magnetic contactors, electromagnetic relays,
solenoid valves, solenoid, and magnetic brakes.
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
EMC-conforming Input Noise Filter: 3G3JV-PFI_
Power
supply
CIMR-J7AZ
MCCB
Noise
Filter
VARISPEED
MCCB
Programmable
Controller
Note
20
Use a Noise Filter designed for the Inverter. A general-purpose Noise Filter
will be less effective and may not reduce noise.
Wiring
Chapter 2-2
Wiring on the Output Side of the Main Circuit
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.
Never Connect a
Power Supply to Output
Terminals
Never connect a power supply to output terminals U/T1, V/T2, or W/T3.
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.
If voltage is applied to the output terminals, the internal circuit of the Inverter
will be damaged.
Also, be careful not to short the output wires.
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.
Do not Use an
Electromagnetic Switch of
Magnetic Contactor
Do not connect an electromagnetic switch of magnetic contactor to the output
circuit.
Installing a Thermal Relay
Doing so will result in damage to the Inverter or cause other parts to burn.
If a load is connected to the Inverter during running, an inrush current will
actuate the overcurrent protective circuit in the Inverter.
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.
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
MCCB
CIMR-J7AZ
Noise
Filter
VARISPEED
Signal line
Induction noise Radio noise
Controller
AM radio
Induction Noise: Electromagnetic induction generates noise on the signal line,
causing the controller to malfunction.
Radio Noise: Electromagnetic waves from the Inverter and cables cause the
broadcasting radio receiver to make noise.
21
Wiring
Chapter 2-2
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
MCCB
CIMR-J7AZ
Metal pipe
VARISPEED
30 cm min.
Signal line
Controller
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
CIMR-J7AZ
MCCB
Noise
Filter
Cable Length between
Inverter and Motor
VARISPEED
Metal pipe
Noise
Filter
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.
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
Carrier frequency 10 kHz max.
Note
22
100 m or less
5 kHz max.
More than 100 m
2.5 kHz
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.
Wiring
Chapter 2-2
Ground Wiring
• Always use the ground terminal with the following ground resistance:
200-V Inverter: 100 W or less
400-V Inverter: separate ground,10 W 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.
• When using more than one Inverter, be careful not to loop the ground
wire.
23
Wiring
Chapter 2-2
Harmonics
■ Definiton
Harmonics consist of electric power produced from AC power and alternating
at frequencies that are integral multiples of the frequency of the AC power.
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)
Distorted current wave
form
24
Third harmonic (180 Hz)
Wiring
Causes of Harmonics
Generation
Chapter 2-2
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.
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
Time
Current
A current flows into the
capacitors. The current is
different from the voltage
in waveform.
Time
25
Wiring
Chapter 2-2
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
DC reactor
(optional)
MCCB
Power supply
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
VARISPEED
CIMR-J7AZ
With DC and AC Reactors
DC reactor
(optional)
MCCB
Power supply
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
Reactor Effects
Harmonics
suppression method
No reactor
AC reactor
DC reactor
DC and AC reactors
26
AC reactor
(optional)
VARISPEED
CIMR-J7AZ
Harmonics are effectively suppressed when the DC reactor is used with the
AC reactor as shown in the following table.
Harmonic generation rate (%)
5th
7th
11th
13th
17th
19th
harmonic harmonic harmonic harmonic harmonic harmonic
65
41
8.5
7.7
4.3
3.1
38
14.5
7.4
3.4
3.2
1.9
30
13
8.4
5
4.7
3.2
28
9.1
7.2
4.1
3.2
2.4
23rd
harmonic
2.6
1.7
3.0
1.6
25th
harmonic
1.8
1.3
2.2
1.4
Wiring
2-2-5
Chapter 2-2
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.
Wiring of Control I/O Terminals
Wire each control I/O terminal under the following conditions.
Wires and Tightening
Torque
Multi-function Contact Output (MA, MB, and MC)
Terminal Tightening
Wire
Wire size
screw size torque N•m
M3
0.5 to 0.6
Single wire 0.5 to 1.25
(20 to 16)
Standard 0.5 to 1.25
wire
(20 to 16)
Recommended
wire size
0.75 (18)
Cable
Cable with
polyethylene
sheath
Sequential Input (S1 through S5 and SC) and
Analog Monitor Output (AM or AC)
Terminal Tightening
Wire
Wire size
screw size torque N•m
M2
0.22 to 0.25 Single wire 0.5 to 1.25
(20 to 16)
Standard 0.5 to 0.75
wire
(20 to 18)
Recommended
Cable
wire size
0.75 (18)
Cable with
polyethylene
sheath
Frequency Reference Input (FR, FS, and FC)
Terminal Tightening
Wire
Wire size
screw size torque N•m
M2
0.22 to 0.25 Single wire 0.5 to 1.25
(20 to 16)
Standard 0.5 to 0.75
wire
(20 to 18)
Solderless Terminal Size
Recommended
Cable
wire size
0.75 (18)
Special
cable with
polyethylene
sheath and
shield for
measurement use
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.
14
8
Model: Phoenix Contact's A1 0.5-8 WH
(Size: mm)
2.6 dia.
27
Wiring
Chapter 2-2
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.
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.
3. The end of each wire connected to the control circuit terminals must be
stripped for approximately 5.5 mm.
4. Connect the shield wire to the ground terminal of the CIMR-J7AZ. Do not
connect the shield wire to the device side being controlled.
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.
28
Note Applying excessive torque may damage
the terminal block. If the tightening torque
is insufficient, homever, wires may disconnect.
Wiring
2-2-6
Chapter 2-2
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.
Standard Connection
Main Circuit Terminals
MCCBs
Noise Filter
Clamp core
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
Control Circuit Terminals
Multi-function contact output
Forward/Stop
NO
Multi-function input 1 (S2)
NC
Multi-function input 2 (S3)
Common
Multi-function input 3 (S4)
Multi-function input 4 (S5)
Sequence input common
Frequency reference
power supply at +12 V
FREQ
adjuster
Analog-monitor output
Analog-monitor output common
Frequency reference input
Frequency reference common
(2kΩ, 1/4 W min.)
Note I/O signals can be connected to a single shielded cable.
29
Wiring
Chapter 2-2
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
Model CIMR-J7AZ20P1/20P2/20P4/20P7
21P5/22P2
24P0
Schaffner model
3G3JV-PFI2010-SE
3G3JV-PFI2020-SE
---
3-phase 200-V AC Noise Filter
Rasmi model
Rated current (A)
3G3JV-PFI2010-E
10
3G3JV-PFI2020-E
16
3G3JV-PFI2030-E
26
Single-phase 200-V AC Noise Filter
Inverter
Model 3G3JVB0P1/B0P2/B0P4
B0P7/B1P5
Schaffner model
3G3JV-PFI1010-SE
3G3JV-PFI1020-SE
Single-phase 200-V Noise Filter
Rasmi model
Rated current (A)
3G3JV-PFI1010-E
10
3G3JV-PFI1020-E
20
3-phase 400-V AC Noise Filter
Inverter
Model CIMR-J7AZ40P2/40P4
40P7/41P5/44P0
A44P0
Schaffner model
3G3JV-PFI3005-SE
3G3JV-PFI3010-SE
3G3JV-PFI3020-SE
Connecting a Motor to the
Inverter
Single-phase 200-V Noise Filter
Rasmi model
Rated current (A)
Schaffner model
Rasmi model
3G3JV-PFI3005-E
5
3G3JV-PFI3010-E
10
3G3JV-PFI3020-E
20
15
• 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 cm.
Furthermore, connect a clamp core (Clamp Filter) close to the output
terminals of the Inverter.
Product
Clamp Filter
Wiring a Control Cable
Model
2CAT3035-1330
• Be sure to connect a cable with a braided shield to the control circuit
terminals.
• Ground the shield on the Inverter side only.
30
Manufacturer
TDK
Wiring
Grounding the Shield
Chapter 2-2
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
Cable clamp
Cable
Shield
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.
300V Models
Inverter
Model CIMR-J7AZ20P1
20P2
20P4
20P7
21P5
22P2
24P0
B0P1
B0P2
B0P4
B0P7
B1P5
NF30
NF30
MCCB (Mitsubishi Electric)
Type
Rated current (A)
5
5
5
10
20
20
30
5
5
10
20
20
31
Wiring
Chapter 2-2
400-V Models
Inverter
Model CIMR-J7AZ40P2
40P4
40P7
41P5
42P2
44P0
NF30
MCCB (Mitsubishi Electric)
Type
Rated current (A)
5
5
5
10
10
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.
32
CHAPTER 3
Preparing for Operation and Monitoring
3-1
Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
3-2
Outline of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35
33
Nomenclature
3-1
Chapter 3-1
Nomenclature
Indicators
Setting/Monitor item indicators
Data display
FREQ adjuster
Keys
Appearance
Name
Data display
Function
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.
The operation of the Inverter through the Digital Operator or according to the
parameters set is selectable while this indicator is lit.
Note 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 setting being made is canceled if this key is pressed before
entering the setting.
Increases multi-function monitor numbers, parameter numbers, and
parameter set values.
LO/RE indicator
PRGM indicator
Mode Key
Increment Key
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 CIMR-J7AZ 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
34
For safety’s 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.
Outline of Operation
3-2
Chapter 3-2
Outline of Operation
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.
35
Outline of Operation
Chapter 3-2
Example of Frequency Reference Settings
Key sequence
Indicator
Display
example
Explanation
Power ON
Note If the FREF indicator has not been lit, press the
Mode Key repeatedly unit 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)
Note
1. The Enter Key need not be pressed when performing the setting for n08.
The frequency reference will change when the set value is changed with
the Increment or Decrement Key while the data display is continuously lit.
2. The frequency reference can be set in either of the following cases.
• Parameter n03 for frequency reference selection is set to 1 (i.e., frequency reference 1 is enabled) and the Inverter is in remote mode.
• Parameter n07 for frequency selection in local mode is set to 1 (i.e., the
Digital Operator is enabled) and the Inverter is in local mode.
• Frequency references 2 through 8 are input for multi-step speed
operation.
3. The frequency reference can be changed, even during operation.
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.
36
Outline of Operation
Chapter 3-2
Status Monitor
Item
U01
U02
U03
U04
Display
Frequency reference
Output frequency
Output current
Output voltage
Display unit
Hz
Hz
A
V
U05
DC bus voltage
V
U06
Input terminal status
---
Function
Monitors the frequency reference. (Same as FREF)
Monitors the output frequency. (Same as FOUT)
Monitors the output current. (Same as IOUT)
Monitors the internal output voltage reference value of the
Inverter.
Monitors the DC voltage of the internal main circuit of the
Inverter.
Shows the ON/OFF status of inputs.
: Input ON
: No input
Terminal S1: Forward/Stop
Terminal S2: Multi-function input 1 (S2)
Terminal S3: Multi-function input 2 (S3)
Terminal S4: Multi-function input 3 (S4)
Terminal S5: Multi-function input 4 (S5)
Not
used
U07
Output terminal status
---
Shows the ON/OFF status of outputs.
: Closed
Terminal MA: Multi-function contact
output
Not
used
U09
Error log
(most recent one)
---
: Open
Displays the latest error.
Error
U10
Software No.
---
OMRON use only.
37
Outline of Operation
Chapter 3-2
Example of Forward/Reverse Selection Settings
Key sequence
Indicator
Display
example
Explanation
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.
Note
The direction of motor rotation can be changed, even during operation.
Example of Local/Remote Selection Settings
Key sequence
Indicator
Display
example
Explanation
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.
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.
2. Local or remote settings in multi-function input terminals can be changed
through the multifunction input terminals only.
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.
38
Outline of Operation
Chapter 3-2
Example of Paramter Settings
Cancels set data.
In approximately 1 s.
Key sequence
Indicator
Display
example
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.
In approximately
1 s.
Note
1. To cancel the set value, press the Mode Key instead. The parameter
number will be displayed.
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.
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.
39
Outline of Operation
40
Chapter 3-2
CHAPTER 4
Test Run
4-1
4-2
Procedure for Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
43
Operation Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45
4-2-1
Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45
4-2-2
Check the Display Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45
4-2-3
Initializing Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
46
4-2-4
Setting the Rated Motor Current . . . . . . . . . . . . . . . . . . . . . . . . . . . .
46
4-2-5
No-load Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47
4-2-6
Actual Load Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48
41
Chapter 4
! 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. Not 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.
! 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.
42
Procedure for Test Run
4-1
Chapter 4-1
Procedure for Test Run
1. Installation and Mounting
Install the Inverter according to the installation conditions. Refer to page 6.
Ensure that the installation conditions are met.
2. Wiring and Connection
Connect to the power supply and peripheral devices. Refer to page 10.
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.
• 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.
CIMR-J7AZ-2_: 3-phase 200 to 230 V AC
CIMR-J7AZ-B_: Single-phase 200 to 240 V AC (Wire R/L1 and S/L2)
CIMR-J7AZ-4_: 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).
• 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.
• 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.
• 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.
• Set n01 to 8 for initialization in 2-wire sequence.
6. Setting Parameters
Set the parameters required for a test run.
• 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.
• Set the frequency reference using the Digital Operator and start the
motor using key sequences.
8. Actual Load Operation
Connect the mechanical system and operate using the Digital Operator.
• When ehere are no difficulties using the no-load operation, connect
the mechanical system to the motor and operate using the Digital
Operator.
43
Procedure for Test Run
Chapter 4-1
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.
• For operation within standard parameters, refer to Chapter 5 Basic
Operation.
• Refer to Chapter 5 Basic Operation and Chapter 6 Advanced
Operation for the various advanced functions, such as stall prevention,
carrier frequently setting, overtorque detection, torque compensation,
and slip compensation.
44
Operation Example
4-2
4-2-1
Chapter 4-2
Operation Example
Power Connection
Checkpoints before Connecting the Power Supply
• Check that the power supply is on the correct voltage and that the motor
output terminals (R/L1, S/L2, and T/L3) are connected to the motor
correctly.
CIMR-J7AZ-2_: Three-phase 200 to 230 V AC
CIMR-J7AZ-B_: Single-phase 200 to 240 V AC (Wire R/L1 and S/L2)
CIMR-J7AZ-4_: 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).
Connecting the Power Supply
• After conducting the above checks, connect the power supply.
4-2-2
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.
45
Operation Example
4-2-3
Chapter 4-2
Initializing Parameters
• Initialize the parameters using the following procedure.
• To initialize the parameters, set n01 to 8.
Key
sequence
Indicator
Display
example
Explanation
Power ON
Press the Mode Key repeatedly until
the PRGM indicator is lit.
v
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.
In approximately 1 s.
4-2-4
Setting the Rated Motor Current
• Set the motor current parameter in n32 in order to prevent the motor from
burning due to overloading.
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 setting the correct parameter, the
overloaded motor will be protected from burning.
n32
Setting
range
Rated Motor Current
0.0% to 120% (A) of rated output Unit of
current of the Inverter
setting
Note
0.1 A
Changes during
operation
Default setting
No
(see note 1)
1. The standard rated current of the maximum applicable motor is the default
rated motor current.
2. Motor overload detection (OL1) is disabled by setting the parameter to 0.0.
Key
sequence
Indicator
Display
example
Explanation
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.
In approximately 1 s.
46
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.
Operation Example
4-2-5
Chapter 4-2
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.
Forward/Reverse Rotation with the Digital Operator
Key
sequence
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.
• 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.
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.
47
Operation Example
4-2-6
Chapter 4-2
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.
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.
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.
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.
48
CHAPTER 5
Basic Operation
5-1
Initial Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50
5-2
V/f Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
51
5-3
Setting the Local/Remote Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
53
5-4
Selecting the Operation Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
54
5-5
Setting the Frequency Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
5-5-1
Selecting the Frequency Reference . . . . . . . . . . . . . . . . . . . . . . . . . .
55
5-5-2
Upper and Lower Frequency Reference Limits . . . . . . . . . . . . . . . .
56
5-5-3
Adjusting the Analog Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
56
5-5-4
Setting Frequency References through Key Sequences . . . . . . . . . .
57
5-6
Setting the Acceleration/Deceleration Time . . . . . . . . . . . . . . . . . . . . . . . . . .
60
5-7
Selecting the Reverse Rotation-prohibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
62
5-8
Selecting the Interruption Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
62
5-9
Multi-function I/0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
63
5-9-1
Multi-function Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
63
5-9-2
Multi-function Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
67
5-10 Analog Monitor Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
68
49
Initial Settings
Chapter 5-1
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.
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.
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
Parameter Write-prohibit Selection/
Parameter Initialization
0, 1, 6, 8, 9
Unit of
1
setting
Note
Changes during
operation
Default setting
No
1
This parameter makes it possible to write-prohibit parameters, change the
parameter set or displayed range, or initialize all parameters to default values.
Set Value
Value
0
1
6
8
9
Description
Only n01 can be displayed and set. The n02 through n79 parameters can be displayed only.
The n01 through n79 parameters can be displayed and set.
Only the error log memory is cleared.
Enables the initialization of all parameters in 2-wire sequence so that the parameters will return to default
values.
Enables the initialization of all parameters in 3-wire sequence.
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.
n32
Setting
range
Rated Motor Current
0.0% to 120% (A) of rated output Unit of
current of Inverter
setting
Note
0.1 A
Changes during
operation
Default setting
No
(see note 1)
1. The standard rated current of the maximum applicable motor is the default
rated motor current.
2. Motor overload detection (OL1) is disabled by setting the parameter to 0.0.
50
V/f Control
5-2
Chapter 5-2
V/f Control
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 J7AZ 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
Maximum Frequency (FMAX)
50.0 to 400 Hz
n10
Setting
range
n11
Setting
range
n12
Setting
range
n13
Setting
range
n14
Setting
range
n15
Setting
range
Unit of
setting
Changes during
operation
0.1 Hz
Default setting
(see note 1)
Maximum Voltage (VMAX)
1 to 255 (V)
(see note 2)
Unit of
setting
1V
Maximum Voltage Frequency (FA)
0.2 to 400 (Hz)
Unit of
setting
0.1 Hz
(see note 1)
Middle Output Frequency (FB)
0.1 to 399 (Hz)
Unit of
setting
0.1 Hz
(see note 1)
Middle Output Frequency Voltage (VC)
1 to 255 (V) (see note 2)
Unit of
setting
1V
Minimum Output Frequency (FMIN)
0.1 to 10.0 (Hz)
Unit of
setting
0,1 Hz
Minimum Output Frequency Voltage (VMIN)
1 to 50 (V) (see note 2)
Note
Unit of
setting
1V
Changes during
operation
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
No
60.0
No
200
(see note 2)
No
60.0
No
1.5
No
12
(see note 2)
No
1.5
No
12
(see note 2)
1. 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 greater.
51
V/f Control
Chapter 5-2
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
following condition will be satisfied.
n14 ≤ n12 < n11 ≤ n09
Note
2. The value set in n13 will be ignored if
parameters n14 and n12 are the same
in value.
n10(VMAX)
n13(VC)
n15(VMIN)
Frequency
Frequency (Hz)
(Hz)
0
n14
(FMIN
n12
(FB)
n11
(FA)
n09
(FMA
• 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.
52
Setting the Local/Remote Mode
5-3
Chapter 5-3
Setting the Local/Remote Mode
The J7AZ operates in local or remote mode. The following description
provides information on these modes and how to select them.
Basic Conecpt
Operation mode
Remote
Basic concept
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.
Description
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.
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.
• Select the mode with the LO/RE Key of the Digital Operator.
• 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 multifunction 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.
53
Selecting the Operation Command
5-4
Chapter 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.
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 sequences on the Digital Operator.
n02
Setting
range
Operation Command Selection
0 to 2
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
0
1
Value
Description
The RUN and STOP/RESET Keys of the Digital Operator are enabled.
Multi-function input in 2- or 3-wire sequence through the control circuit terminals is enabled.
2
Operation commands via RS-422A/485 communications are enabled.
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
0, 1
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
54
Description
The STOP/RESET Key of the Digital Operator is enabled.
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.
Setting the Frequency Reference
5-5
Chapter 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.
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 application.
n03
Setting
range
Frequency Reference Selection
0 to 4, 6
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
2
3
4
6
Description
The FREQ adjuster of the Digital Operator is enabled. (see note 1)
Frequency reference 1 (n21) is enabled.
The frequency reference control terminal (for 0- to 10-V input) is enabled. (see note 2)
The frequency reference control terminal (for 4- to 20-mA current input) is enabled. (see note 3)
The frequency reference control terminal (for 0- to 20-mA current input) is enabled. (see note 3)
The frequency reference via RS-422A/485 communications is enabled.
Note
1. The maximum frequency (FMAX) is set when the FREQ adjuster is set to
MAX.
2. The maximum frequency (FMAX) is set with 10 V input.
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.
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.
n07
Setting
range
Frequency Reference Selection in Local Mode
0, 1
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
Description
The FREQ adjuster of the Digital Operator is enabled. (see note 1)
Key sequences on the Digital Operator are enabled. (see note 2)
55
Setting the Frequency Reference
5-5-2
Chapter 5-5
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.
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
Frequency Reference Upper Limit
0% to 110%
(Max. frequency = 100%)
n31
Setting
range
1%
1%
Changes during
operation
Default setting
Frequency Reference Lower Limit
0% to 110%
(Max. frequency = 100%)
Note
5-5-3
Unit of
setting
Changes during
operation
Default setting
Unit of
setting
No
100
No
0
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.
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.
FR Terminal Adjustments for Frequency Reference Input
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
0% to 255%
(Max. frequency = 100%)
n42
Setting
range
Unit of
setting
1%
Changes during
operation
Default setting
1%
Changes during
operation
Default setting
Frequency Reference Bias
-99% to 99%
(Max. frequency = 100%)
Unit of
setting
Yes
100
Yes
0
• 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 interference.
• The larger the set value is, the slower the response speed will be.
n43
Setting
range
56
Analog Frequency Reference Filter Time
0.00 to 2.00 (s)
Unit of
setting
0.01 s
Changes during
operation
Default setting
No
0.10
Setting the Frequency Reference
5-5-4
Chapter 5-5
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
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.
Setting Frequency References 1 through 8 (n21 through n28)
n21
Setting
range
Frequency Reference 1
0.0 to max. frequency
n22
Setting
range
0.0 to max. frequency
0.0 to max. frequency
0.0 to max. frequency
0.0 to max. frequency
0.0 to max. frequency
Unit of
setting
0.01 Hz
(see note 1)
Unit of
setting
0.01 Hz
(see note 1)
Unit of
setting
0.01 Hz
(see note 1)
Frequency Reference 7
0.0 to max. frequency
n28
Setting
range
0.01 Hz
(see note 1)
Frequency Reference 6
n27
Setting
range
Unit of
setting
Frequency Reference 5
n26
Setting
range
0.01 Hz
(see note 1)
Frequency Reference 4
n25
Setting
range
Unit of
setting
Frequency Reference 3
n24
Setting
range
0.01 Hz
(see note 1)
Frequency Reference 2
n23
Setting
range
Unit of
setting
Unit of
setting
0.01 Hz
(see note 1)
Frequency Reference 8
0.0 to max. frequency
Note
Unit of
setting
0.01 Hz
(see note 1)
Changes during
operation
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
Yes
6.0
Yes
0.0
Yes
0.0
Yes
0.0
Yes
0.0
Yes
0.0
Yes
0.0
Yes
0.0
1. 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.
2. Frequency reference 1 is enabled with n03 for frequency reference
selection set to 1.
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.
57
Setting the Frequency Reference
Frequency reference
Chapter 5-5
Frequency reference 1
Frequency reference 2
Frequency reference 3
Frequency reference 4
Frequency reference 5
Frequency reference 6
Frequency reference 7
Frequency reference 8
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Multi-step speed
reference 3
(Set value: 8)
Multi-step speed
reference 2
(Set value: 7)
Multi-step speed
reference 1
(Set value: 6)
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
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.
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
0.0 to max. frequency
Note
Unit of
setting
0.01 Hz
(see note 1)
Changes during
operation
Default setting
Yes
6.0
1. The value 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.
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 multifunction 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).
58
Setting the Frequency Reference
Chapter 5-5
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.
• Parameter n03 for frequency reference selection is set to 1, which
enables frequency reference 1, and the Inverter is in remote mode.
• 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.
• 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 multistep 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.
Setting the Key Sequential
Frequency (n08)
n08
Setting
range
• 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.
Key Sequential Frequency Setting
0, 1
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
Description
Enter Key enabled (The set value is entered with the Enter Key pressed.)
Enter Key disabled (The set value set is entered immediately.)
59
Setting the Acceleration/Deceleration Time
5-6
Chapter 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.
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 multifunction input with n04 for interruption mode selection set to 0 (i.e.,
deceleration stop).
n16
Setting
range
Acceleration time 1
0.0 to 999 (s)
n17
Setting
range
0.0 to 999 (s)
0.0 to 999 (s)
0.1 s
(see note)
Unit of
setting
0.1 s
(see note)
Deceleration Time 2
0.0 to 999 (s)
Note
60
Unit of
setting
Unit of
setting
Yes
10.0
Changes during
operation
Acceleration Time 2
n19
Unit of
setting
0.1 s
(see note)
Deceleration Time 1
n18
Setting
range
Unit of
setting
Changes during
operation
Default setting
0.1 s
(see note)
Default setting
Changes during
operation
Default setting
Changes during
operation
Default setting
Yes
10.0
Yes
10.0
Yes
10.0
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.
Setting the Acceleration/Deceleration Time
Chapter 5-6
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
0 to 3
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
2
3
Description
No S-shape acceleration/deceleration characteristic (Trapezoidal acceleration/deceleration)
S-shape acceleration/deceleration characteristic time is 0.2 s
S-shape acceleration/deceleration characteristic time is 0.5 s
S-shape acceleration/deceleration characteristic time is 1.0 s
Note
When the S-shape acceleration/deceleration characteristic time is set,
the acceleration and deceleration times will be lengthened according to the
S-shape at the beginning and end of acceleration/deceleration.
61
Selecting the Reverse Rotation-prohibit
5-7
Chapter 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.
Selecting the Reverse Rotation-prohibit (n05)
n05
Reverse Rotation-prohibit Selection
Setting
range
0, 1
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
Description
Accept
Not accept
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.
Selecting the Interruption Mode (n04)
n04
Setting
range
Interruption Mode Selection
0, 1
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
Description
Frequency deceleration stop (See notes 1 and 2.)
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 multifunction 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.
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.
3. Do not input a RUN signal during a free-running stop if the motor’s rotation
speed is not sufficient 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.
62
Multi-function I/0
5-9
5-9-1
Chapter 5-9
Multi-function I/0
Multi-function Input
The J7AZ incorporates four multi-function input terminals (S2 through S5).
Inputs into these terminals have a variety of functions according to the
application.
Multi-function Input (n36 through n39)
n36
Setting
range
Multi-function Input 1 (S2)
2 to 8, 10 to 22
(see note)
n37
Setting
range
n39
Setting
range
1
1
Changes during
operation
Default setting
1
Changes during
operation
Default setting
1
Changes during
operation
Default setting
Multi-function Input 2 (S3)
0,2 to 8, 10 to 22
(see note)
n38
Setting
range
Unit of
setting
Changes during
operation
Default setting
Unit of
setting
Multi-function Input 3 (S4)
2 to 8, 10 to 22
(see note)
Unit of
setting
Multi-function Input 4 (S5)
2 to 8, 10 to 22, 34, 35
(see note)
Note
Unit of
setting
No
2
No
5
No
3
No
6
Do not set values outside the above setting ranges.
63
Multi-function I/0
Chapter 5-9
Set Values
Value
0
2
3
4
5
6
7
8
10
11
12
13
14
15
16
17
18
Function
Forward/Reverse rotation
command
Description
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)
Reverse/Stop
Reverse rotation command (2-wire sequence)
External fault (NO)
ON: External fault (FP_detection: _is a terminal number)
External fault (NC)
OFF: External fault (EF_detection: _is a terminal number)
Fault reset
ON: Fault reset (disabled while RUN command is input)
Multi-step speed
Signals to select frequency references 2 through 8.
reference 1
Note Refer to 5-5-4 Setting Frequency References through Key
Sequences for the relationship between multi-step speed references
Multi-step speed reference 2
and frequency references.
Multi-step speed reference 3
Note Any multi-step speed reference not set is regarded as turned-OFF
input.
Inching frequency command ON: Inching frequency command (taking precedence over the multi-step
speed reference)
Acceleration/Deceleration
ON: Acceleration time 2 and deceleration time 2 are selected.
time selection
External base block
ON: Output shut off (while motor coasting to a stop and “bb” flashing)
command (NO)
External base block
OFF: Output shut off (with motor free running and “bb” flashing)
command (NC)
Search command (Searching ON: Speed search (Searching starts from n09)
starts from maximum
frequency)
Search command
ON: Speed search
(Searching starts from preset
frequency)
Acceleration/DecelerationON: Acceleration/Deceleration is on hold (running at parameter frequency)
prohibit command
Local or remote selection
ON: Local mode (operated with the Digital Operator)
Note After this setting is made, mode selection with the Digital Operator is
not possible.
19
Communications or remote
selection
Emergency stop fault (NO)
20
21
22
Emergency stop alarm (NO)
Emergency stop fault (NC)
Emergency stop alarm (NC)
34
Up or down command
35
Self-diagnostic test
64
ON: RS-422A/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)
Up or down command (set in n39 only)
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).
ON: RS-422A/485 communications self-diagnostic test (set in n39 only)
Multi-function I/0
Chapter 5-9
Operation in 2-wire Sequence (Set Value: 2)
• The Inverter operates in 2-wire sequence by setting a multi-function input
parameter to 2 (reverse/stop).
• The following diagram shows a wiring example of the terminals in 2-wire
sequence.
Forward-rotation
switch
Reverse-rotation
switch
Forward/Stop (Forward rotation with the forward-rotation switch
S1 closed and reverse-rotation switch opened)
S_
Reverse/Stop (Reverse rotation with the reverse-rotation switch
closed and forward-rotation switch opened) _: 2 to 5
SC Sequence input common
Operation in 3-wire Sequence (n37 = 0)
• The Inverter operates in 3-wire sequence by setting n37 for multi-function
input 2 to 0.
• Only n37 can be set to 0 (3-wire sequence). By making this setting, the
set value in n36 is ignored and the following settings are forcibly made.
S1: RUN input (RUN when ON)
S2: STOP input (STOP when OFF)
S3: Forward/Reverse rotation command (OFF: Forward; ON: Reverse)
• The following diagram shows a wiring example of the terminals in 3-wire
sequence.
Stop switch
(NC)
Operation
switch (NO)
S1 RUN input (RUN with the STOP switch and RUN switch closed)
S2 STOP input (with the STOP switch opened)
Direction switch
S3 Foward/Reverse rotation command (Forward rotation with the direction
switch opened and reverse rotation with the direction switch closed
SC Sequence input common
External Base Block Command (Set Value: 11, 12)
When an SPST-NO (setting: 12) or SPST-NC (setting: 13) input is received,
Inverter outputs are shut OFF. Use these inputs in the following cases to stop
Inverter outputs.
• For switching the motor to free running status when applying an external
brake.
• For stopping Inverter outputs before disconnecting motor wiring when
changing the motor connections from the Inverter to a commercial power
supply.
Note
The external base block only shuts OFF the Inverter’s output frequency, and
the Inverter’s internal frequency continues to be calculated as usual.
Therefore, if the external base block is clearedwhen the frequency is other
than zero, the frequency calculated at that point will be output. Because of
this, if the baseblock is cleared during deceleration while the motor is free
running, a large discrepancy between the motor speed at that moment and
the Inverter output frequency may result in a main circuit overvoltage (OV) or
overcurrent (OC).
65
Multi-function I/0
Chapter 5-9
Speed Search (Set Value: 14, 15)
The speed search function is provided for smooth restarting without stopping
a free running motor. Use it when switching the motor from commercial power
supply operation to Inverter operation, when starting with the Inverter a motor
turned by external force, etc.
The speed search function searches for the present motor frequency, from
high frequency to low. When the motor’s rotation speed is detected, it is
accelerated from that frequency to the frequency reference according to the
acceleration/deceleration time setting.
Forward (reverse)
RUN command
Speed Search command
ON
ON
0.5 s min.
Time
Time
Output frequency
High-speed frequency
or set frequency
(frequency reference)
Minimum base block time (0.5 s)
66
Speed search operation
Time
Multi-function I/0
5-9-2
Chapter 5-9
Multi-function Output
The J7AZ incorporates two multi-function output terminals (MA and MB).
Output from these terminals has a variety of functions according to the
application.
Selecting the Multi-function Output (n40)
n40
Multi-function Output (MA/MB and MC)
Setting
range
0 to 7, 10 to 17
(see note)
Note
Unit of
setting
1
Changes during
operation
Default setting
No
1
Do not set values outside the above setting ranges.
Set Values
Value
0
1
2
Function
Fault output
Operation in progress
Frequency detection
3
4
Idling
Frequency detection 1
5
6
Frequency detection 2
Overtorque being monitored
(NO-contact output)
Overtorque being monitored
(NC-contact output)
7
Description
ON: Fault output (with protective function working)
ON: Operation in progress (with RUN command input or inverter output)
ON: Frequency detection (with frequency reference coinciding with output
frequency)
ON: Idling (at less than min. output frequency)
ON: Output frequency ≥ frequency detection level (n58)
10
11
12
13
14
15
Alarm output
Base block in progress
RUN mode
Inverter ready
Fault retry
UV in progress
16
17
Rotating in reverse direction
Speed search in progress
Note
ON: Output frequency ≤frequency detection level (n58)
Output if any of the following parameter conditions is satisfied.
• Overtorque detection function selection (n59)
• Overtorque detection level (n60)Overtorque detection level (n60)
• Overtorque detection time (n61)
Note NO contact: ON with overtorque being detected;
NC contact: OFF with overtorque being detected
ON: Alarm being detected (Nonfatal error being detected)
ON: Base block in progress (in operation with output shutoff)
ON: Local mode (with the Digital Operator)
ON: Inverter ready to operate (with no fault detected)
ON: Fault retry (Inverter resetting with fault retry (n48) not set to 0)
ON: Undervoltage being monitored
(main circuit undervoltage UV or UV1 detected)
ON: Rotating in reverse direction
ON: Speed search in progress
Use “operation in progress” (set value: 1) or “idling“ (set value: 3) setting for
the timing for stopping the motor using a brake. To specify a precise stop
timing, set “frequency detection 1” (set value: 4) or “frequency detection 2”
(set value: 5), and set the frequency detection level (n58).
67
Analog Monitor Output
Chapter 5-10
5-10 Analog Monitor Output
The J7AZ incorporates analog monitor output terminals AM and AC.
These terminals have analog monitor values of output frequency or current.
Setting the Analog Monitor Output (n44 and n45)
• The output frequency or current as a monitored item is set in n44.
• The analog output characteristics are set as an analog monitor output
gain in n45.
n44
Setting
range
Analog Monitor Output
0, 1
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Value
Value
0
1
Description
Output frequency (Reference: 10 V at max. frequency)
Output current (Reference: 10 V with rated output current)
n45
Setting
range
Analog Monitor Output Gain
0.00 to 2.00
Note
Unit of
setting
0.01
Changes during
operation
Default setting
Yes
1.00
1. Set the multiplication ratio based on the set value in n44.
For example, if an output of 5 V is desired at maximum frequency
(with n44 set to 0), set n45 to 0.50.
2. The maximum output voltage of the analog monitor output terminals
are 10 V.
68
CHAPTER 6
Advanced Operation
6-1
Setting the Carrier Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
70
6-2
DC Injection Braking Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
72
6-3
Stall Prevention Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
73
6-4
Overtorque Detection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
76
6-5
Torque Compensation Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
77
6-6
Slip Compensation Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
78
6-7
Other Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
79
6-7-1
Motor Protection Characteristics (n33 and n34) . . . . . . . . . . . . . . . .
79
6-7-2
Cooling Fan Operation Function (n35) . . . . . . . . . . . . . . . . . . . . . . .
80
6-7-3
Momentary Power Interruption Compensation (n47) . . . . . . . . . . . .
80
6-7-4
Fault Retry (n48) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
81
6-7-5
Frequency Jump Function (n49 to n51) . . . . . . . . . . . . . . . . . . . . . .
82
6-7-6
Frequency Detection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
83
6-7-7
UP/DOWN Command Frequency Memory (n62) . . . . . . . . . . . . . .
85
6-7-8
Error History (n78) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
87
69
Setting the Carrier Frequency
Chapter 6-1
This chapter provides information on the use of advanced functions of the
Inverter for operation. Refer to this chapter to use the various advanced
functions, such as stall prevention, carrier frequency setting, overtorque
detection, torque compensation, and slip compensation.
6-1
Setting the Carrier Frequency
The carrier frequency of the J7AZ can be fixed or varied in proportion to the
output frequency.
n46
Carrier Frequency Selection
Setting
range
1 to 4, 7 to 9
Note
Unit of
setting
1
Changes during
operation
Default setting
No
(see note)
The default setting varies with the capacity of the Inverter model.
Set Values
Value
1
2
3
4
7
8
9
Description
2.5 kHz
5.0 kHz
7.5 kHz
10.0 kHz
2.5 kHz (12×): 12 times as high as output frequency (between 1.0 and 2.5 kHz)
2.5 kHz (24×): 24 times as high as output frequency (between 1.0 and 2.5 kHz)
2.5 kHz (36×): 36 times as high as output frequency (between 1.0 and 2.5 kHz)
• The default setting does not need any changes in normal operation.
• Change the default setting in the following cases.
The wiring distance between the Inverter and motor is long:
Set the Inverter to a lower carrier frequency.
Reference carrier frequency: 10 kHz at a maximum wiring distance
of 100 m and 5 kHz at a wiring distance exceeding 100 m.
Excessive speed or torque dispersion at low speed:
Set the carrier frequency to a lower value.
Note
The carrier frequency changes as shown in the following graph with 7 through
9 set in n46.
Carrier Frequency (n46: 7 through 9)
Carrier
Frequency
2.5kHz
1.0kHz
Output frequency
83.3 Hz (Set value: 7)
41.6 Hz (Set value: 8)
27.7 Hz (Set value: 9)
70
208.3 Hz (Set value: 7)
104.1 Hz (Set value: 8)
69.4 Hz (Set value: 9)
Setting the Carrier Frequency
Chapter 6-1
The Inverter cannot maintain rated output current with the carrier frequency
set to a value higher than the default one.
The following table shows the default value and a decrease in the output
current of each Inverter model.
Be sure to use the Inverter so that there will be no decrease in rated output
current.
Voltage
Model
CIMR-J7AZ-
3-phase
200 V
20P1
20P2
20P4
20P7
21P5
22P2
24P0
B0P1
B0P2
B0P4
B0P7
B1P5
40P2
40P4
40P7
41P5
42P2
44P0
Single-phase
200 V
3-phase 400 V
n75
Setting
range
Default setting
4 (10 kHz)
4 (10 kHz)
4 (10 kHz)
4 (10 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
4 (10 kHz)
4 (10 kHz)
4 (10 kHz)
4 (10 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
Rated output
current (A)
0.8
1.6
3.0
5.0
8.0
11.0
17.5
0.8
1.6
3.0
5.0
8.0
1.2
1.8
3.4
4.8
5.5
8.6
Low Carrier Frequency at Low Speed
0, 1
Unit of
setting
1
Set to 3 Reduced
rated output
current (A)
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Changes during
operation
Default setting
Set to 4 Reduced
rated output
current (A)
Q
Q
Q
Q
7.0
10.0
16.5
Q
Q
Q
Q
7.0
1.0
1.6
3.0
4.0
4.8
7.6
No
0
Set Values
Value
0
1
Description
Low carrier frequency at low speed disabled.
Low carrier frequency at low speed enabled.
• Normally set n75 to 0.
• When the output frequency is 5 Hz or higher and the output current rate is
110% or less, the carrier frequency will be automatically reduced to 2.5
kHz with n75 set to 1. If the load is heavy at low speed, the Inverter will
withstand higher overcurrent by suppressing the heat radiation of the
Inverter caused by the carrier frequency.
• This function is enabled with 2, 3, or 4 set in n46 for carrier frequency.
71
DC Injection Braking Function
6-2
Chapter 6-2
DC Injection Braking Function
The DC injection braking function applies DC on the induction motor for
braking control.
Startup DC Injection Braking: This braking is used for stopping and starting
the motor rotating by inertia with no regenerative processing.
DC Injection Braking to Stop: Adjust the stop DC injection braking time if the
motor rotating does not decelerate to a stop in normal operation due to inertia
from a heavy load. By increasing the DC injection braking time or DC injection
braking current, the time required for stopping the motor is reduced.
n52
Setting
range
DC Control Current
0 to 100 (%)
n53
Setting
range
1%
Default setting
0.1 s
Changes during
operation
Default setting
0.1s
Changes during
operation
Default setting
Interruption DC Control Time
0.0 to 25.5 (s)
n54
Setting
range
Unit of
setting
Changes during
operation
Unit of
setting
Startup DC Control Time
0.0 to 25.5 (s)
Unit of
setting
No
50
No
0.5
No
0.0
• Set the DC injection braking current as percentage based on the rated
current of the Inverter as 100%.
• After the startup DC injection braking time is set, the Inverter starts up at
minimum frequency on completion of the startup DC injection braking
control of the Inverter.
• After the speed is reduced, the Inverter is switched to DC injection braking
at minimum output frequency.
DC Injection Braking Control
Output
frequency
Minimum
output
frequency
(n14)
72
n54
Startup DC control time
Time
n53
Interruption DC control time
Stall Prevention Function
6-3
Chapter 6-3
Stall Prevention Function
A stall will occur if the motor cannot keep up with the rotating magnetic field
on the motor stator side when a large load is applied to the motor or a sudden
acceleration/deceleration is performed.
In the J7AZ, stall prevention functions can be set independently for
accelerating, running, and decelerating conditions.
n55
Stall Prevention Level during Deceleration
Setting
range
0, 1
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
Description
Stall prevention during deceleration
Stall prevention during deceleration
• If 1 is set, the motor will be decelerated according to the set deceleration
time. If the deceleration time is too short, the main circuit may result in
overvoltage.
• If 0 is set, the deceleration time will be automatically lengthened to
prevent overvoltage.
Stall Prevention during Deceleration with n55 Set to 0
Output
frequency
Deceleration time is controlled
to prevent overvoltage.
Time
Deceleration time (Set value)
73
Stall Prevention Function
n56
Chapter 6-3
Stall Prevention Level during Acceleration
Setting
range
30 to 200 (%)
Set Values
Unit of
setting
1%
Changes during
operation
Set Values
No
170
• This function is used to stop accelerating the load if the output current
exceeds the set current value so that the Inverter will continue operating
without stalling. The Inverter accelerates the load while the output current
is the same as or less than the set value.
• Set the parameter as percentage based on the rated Inverter current as
100%.
• The default setting does not need any changes in normal operation.
• Decrease the set value if the capacity of the motor is smaller than that of
the Inverter or the motor stalls with the default value.
The set value is normally 2 or 3 times higher than the rated current of the
motor. Set this current as percentage based on the rated inverter current
as 100%.
Stall Prevention during Acceleration
Output
current
n56 (stall prevention level
during acceleration)
Time
Output
frequency
The output frequency is controlled
so that the Inverter will not stall.
Time
74
Stall Prevention Function
n57
Chapter 6-3
Stall Prevention during Operation
Setting
range
30 to 200 (%)
Set Values
Unit of
setting
Changes during
operation
1%
Default setting
No
160
• This function will decrease the output frequency if the output current
exceeds the set current value by a minimum of approximately 100 ms so
that the Inverter will continue operating without stalling. The Inverter will
increase the output frequency to return to the set frequency reference
level when the output current is less than the set value.
• The Inverter accelerates or decelerates the output frequency according to
the preset acceleration or deceleration time. (Acceleration time 1: n16,
n17 or acceleration time 2: n18, n19)
• Set the parameter as percentage based on the rated Inverter current as
100%.
• The default setting does not need any changes in normal operation.
• Decrease the set value if the capacity of the motor is smaller than that of
the Inverter or the motor stalls with the default value.
The set value is normally 2 or 3 times higher than the rated current of the
motor. Set this current in percentage based on the rated Inverter current
as 100%.
Stall Prevention during Acceleration
Output
current
n57 (Stall prevention level
during acceleration)
Time
Output
frequency
The output frequency is controlled
so that the Inverter will not stall.
Time
75
Overtorque Detection Function
6-4
Chapter 6-4
Overtorque Detection Function
When an excessive load is applied to the equipment, the Inverter detects the
overtorque condition through an increase in the output current.
n59
Setting
range
Overtorque Detection Function Selection
0 to 4
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
Description
Inverter does not monitor overtorque.
Inverter monitors overtorque only when speed is matched. It continues operation (issues warning) even
after overtorque is detected.
Inverter monitors overtorque only when speed is matched. It discontinues operation (through protective
function) when overtorque is detected.
Inverter always monitors overtorque during operation. It continues operation (issues warning) even after
overtorque is detected.
Inverter always monitors overtorque during operation. It discontinues operation (through protective
function) when overtorque is detected.
2
3
4
• Set n60 for overtorque detection level and n61 for overtorque detection
time to enable the overtorque detection function. The Inverter will detect
overtorque when the current the same as or higher than the detection
level is output for the preset detection time.
• Set n40 for multi-function output to either of the following so that external
overtorque detection output will be ON.
Set Value: 6 for overtorque detection (NO)
Set Value: 7 for overtorque detection (NC)
Overtorque Detection
See note.
Output
current
n60 (Overtorque
detection level)
Time
Overtorque
detection (NO)
Note
76
ON
Time
Overtorque detection will be canceled if the output current decreases from the detection level
by approximately 5% of the Inverter rated current.
n60
Setting
range
n61
Overtorque detection time
Overtorque Detection Level
30 to 200 (%)
Unit of
setting
1%
Changes during
operation
Default setting
No
160
Torque Compensation Function
Set Values
Chapter 6-5
Set the parameter as percentage based on the rated Inverter current as
100%.
n61
Overtorque Detection Time
Setting
range
0.1 to 10.0 (s)
Set Values
Unit of
setting
Changes during
operation
0.1 s
Default setting
No
0.1
• Set the overtorque detection time.
• The Inverter will detect overtorque when the current the same as or
higher than the detection level is output for the preset detection time.
6-5
Torque Compensation Function
This function increases the output torque of the Inverter by detecting an
increase in the motor load.
#
n63
Setting
range
Set Values
Torque Compensation Gain
0.0 to 2.5
Unit of
setting
0.1
Changes during
operation
Default setting
Yes
1.0
• The default setting does not need any changes in normal operation.
• Change the default setting in the following cases.
The wiring distance between the Inverter and motor is long:
Set the gain to a larger value.
The capacity of the motor is lower than the maximum applicable motor
capacity of the Inverter:
Set the gain to a larger value.
The motor vibrates:
Set the gain to a smaller value.
• The torque compensation gain must be adjusted so that the output
current at low speed will not exceed 50% of the rated output current of the
Inverter, otherwise the Inverter may be damaged.
77
Slip Compensation Function
6-6
Chapter 6-6
Slip Compensation Function
The slip compensation function calculates the motor torque according to the
output current, and sets gain to compensate for output frequency. This
function is used to improve speed accuracy when operating with a load.
n64
Setting
range
Motor Rated Slip
0.0 to 20.0 (Hz)
Note
Set Values
Unit of
setting
Changes during
operation
0.1 Hz
Default setting
Yes
(see note)
The default setting varies with the capacity of the Inverter model.
• Set the rated slip value of the motor in use.
• This parameter is used as a slip compensation constant.
• Calculate the rated motor slip value from the rated frequency (Hz) and
rpm on the motor nameplate by using the following formula.
Rated slit value (Hz) = Rated frequency (Hz) –
n65
Setting
range
Motor No-load Current
0 to 99 (%)
Unit of
setting
Note
Set Values
1%
Rated prm
Changes during
operation
Default setting
Number of poles
120
No
(see note)
The default setting varies with the capacity of the Inverter model.
• Set the motor current with no load in percentage based on the rated
motor current as 100%.
• Contact the motor manufacturer for the motor current with no load.
• This parameter is used as a slip compensation constant.
n66
Setting
range
Slip Compensation Gain
0.0 to 2.5
Unit of
setting
Note
Set Values
0.1
Changes during
operation
Default setting
Yes
0.0
(see note)
This parameter is disabled with the value set to 0.0.
• Set the parameter to 1.0 first and check the operation of the Inverter.
Then fine-tune the gain with 0.1-gain increments or decrements.
If the speed is lower than the target value, increase the set value.
If the speed is higher than the target value, decrease the set value.
n67
Setting
range
Set Values
Slip Compensation Time Constant
0.0 to 25.5 (s)
Unit of
setting
0.1 s
Changes during
operation
Default setting
No
2.0
• This parameter is used for the response adjustment of the slip
compensation function.
• The default setting does not need any changes in normal operation.
• Change the default setting in the following cases.
78
The motor vibrates:
Set the value to a larger value.
The motor response is low:
Set the value to a smaller value.
Other Functions
6-7
Chapter 6-7
Other Functions
The following description provides information on the other functions and
parameter settings of the Inverter.
6-7-1
Motor Protection Characteristics (n33 and n34)
This parameter setting is for motor overload detection (OL1).
n33
Setting
range
Motor Protection Characteristic Selection
0 to 2
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
2
Description
Protection characteristics for general-purpose induction motors
Protection characteristics for Inverter-dedicated motors
No protection
• This parameter is used to set the electric thermal characteristics of the
motor to be connected.
• Set the parameter according to the motor.
• If a single Inverter is connected to more than one motor, set the
parameter to 2 for no protection. The parameter is also disabled by setting
n32 for rated motor current to 0.0. To protect each motor from overload,
be sure to take an appropriate measure such as the installation of a
thermal relay.
n34
Setting
range
Set Values
Motor Protection Time
1 to 60 (min)
Unit of
setting
1 min
Changes during
operation
Default setting
No
8
• This parameter is used to set the electronic thermal protection constant of
motor overload detection OL1.
• The default setting does not need any changes in normal operation.
• To set the parameter according to the characteristics of the motor, confirm
the thermal time constant with the motor manufacturer and set the
parameter with some margin. In other words, set the value a little shorter
than the thermal time constant.
• To detect motor overloading more quickly, reduce the set value, provided
that it does not cause any application problems.
79
Other Functions
6-7-2
Chapter 6-7
Cooling Fan Operation Function (n35)
This parameter is used to operate the cooling fan of the Inverter while the
Inverter is turned on or only while the Inverter is in operation.
n35
Setting
range
Cooling Fan Operation Selection
0, 1
Unit of
setting
Changes during
operation
1
Default setting
No
0
Set Values
Value
0
1
Description
The fan rotates only while the RUN command is input and for 1 minute after the Inverter stops
operating.
The fan rotates while the Inverter is turned on.
• This parameter is available only if the Inverter incorporates a cooling fan.
• If the operation frequency of the Inverter is low, the life of the fan can be
prolonged by setting the parameter to 0.
6-7-3
Momentary Power Interruption Compensation (n47)
The parameter specifies the processing that will be performed when a
momentary power interruption occurs.
n47
Setting
range
Momentary Power Interruption Compensation
0 to 2
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
2
Description
Disabled. (An undervoltage fault will be detected when there is momentary power interruption for 15 ms
or more.)
The Inverter will continue operating if power is restored within 0.5 s. (see note 1)
The Inverter will restart when power is restored. (see note 2)
Note
1. If the parameter is set to 1, an undervoltage warning will be detected and
the output of the Inverter will be shut off for 0.5 s when a momentary power
interruption occurs. The Inverter will restart after speed searching if power
is restored within 0.5 s. Undervoltage fault 1 will be detected if power failure
continues for more than 0.5 s.
2. If the parameter is set to 2, an undervoltage warning will be detected and
the output of the Inverter will be shut off when a momentary power
interruption occurs. The Inverter will then wait for power restoration. When
power is restored, the Inverter will restart after speed searching.
80
Other Functions
6-7-4
Chapter 6-7
Fault Retry (n48)
! Caution
The Inverter may be break if the fault retry function is used.
If the Inverter breaks, take the following measures:
Be sure to install a no-fuse breaker (NFB).
Provide the Inverter and peripheral machines with a sequence so that the
machines will stop operating when the Inverter has an operational fault.
• The fault retry function automatically resets and restarts the Inverter in the
case the Inverter has an overvoltage fault, overcurrent fault, or ground
fault.
• In the case of any other fault, the protective function operates instantly
and the fault retry function does not operate.
• This function is to be used only if the user does not want to interrupt the
mechanical system, even if this function may damage the Inverter.
• Set n40 for multi-function output to the following value so that external
overtorque detection output will be turned on.
Set value: 14 for fault retries
n48
Setting
range
Set Values
Fault Retry
0 to 10
Unit of
setting
1
Changes during
operation
Default setting
No
0
• Set the number of fault retries required.
• The count of fault retries will be cleared in any of the following cases.
The Inverter is normal for 10 minutes continuously after the latest fault retry
was made.
Power supply to the Inverter is interrupted.
A fault reset is input.
81
Other Functions
6-7-5
Chapter 6-7
Frequency Jump Function (n49 to n51)
• The frequency jump function prevents the Inverter from generating
frequencies that make the mechanical system resonate.
• The frequency jump function can be used effectively to set two dead
bands of a frequency reference.
n49
Setting
range
Jump Frequency 1
0.0 to 400 (Hz)
n50
Setting
range
0.1 Hz
(see note)
Jump Frequency 2
0.0 to 400 (Hz)
n51
Setting
range
Unit of
setting
Changes during
operation
Unit of
setting
0.1 Hz
(see note)
Jump Width
0.0 to 25.5 (Hz)
Note
Set Values
Unit of
setting
0.1 Hz
Default setting
Changes during
operation
Unit of setting
Changes during
operation
Default setting
No
0.0
No
0.0
No
0.0
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 greater.
• Set n49 and n50 for jump frequencies 1 and 2 to the central values of
jumping frequencies.
• These values must satisfy the following condition.
n49 ≥ n50
• The value in n51 must be set for the jump width.
• This function is disabled with n51 set to 0.0.
• The operation of the Inverter within the dead bands is prohibited. While
the Inverter is in acceleration or deceleration control, however, the
Inverter does not jump the bands but changes the frequency smoothly.
Frequency Jump Function
Output
frequency
n49 ≥ n50
n51
n50
82
n49
Reference frequency
Other Functions
6-7-6
Chapter 6-7
Frequency Detection Function
• The 3G3JV has the following frequency detection functions.
Frequency Detection:
Detects that the frequency reference coincides with the output frequency.
Frequency Detection Levels 1 and 2:
Detects that the output frequency is the same as or higher or lower than
the set value (frequency detection level) in n58.
• The parameter n40 for multi-function output must be set for the frequency
detection function.
Frequency Detection
The parameter n40 for multi-function output must be set for frequency
detection output.
Set value: 2 for frequency detection
Frequency Detection Operation
Output
frequency
Reset width ±4 Hz
Detection width ±2 Hz
Frequency reference
Time
Frequency
detection
ON
Time
83
Other Functions
Chapter 6-7
Frequency Detection Levels 1 and 2
• The parameter n40 for multi-function output must be set for frequency
detection output.
Set value: 4 for frequency detection level 1 (Output frequency ≥ n58)
Set value: 5 for frequency detection level 2 (Output frequency ≤ n58)
• Set the frequency detection level in n58.
n58
Setting
range
Frequency Detection Level
0.0 to 400 (Hz)
Note
Unit of
setting
0.1 Hz
(see note)
Changes during
operation
Default setting
No
0.0
The value 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.
Frequency Detection Level 1
Output
frequency
Reset width ±2 Hz
n58 (Frequency
detection level)
Time
Frequency
detection level 1
ON
Time
Frequency Detection Level 2
Output
frequency
Reset width +2 Hz
n58 (Frequency
detection level)
Time
Frequency
detection level 2
84
ON
ON
Time
Other Functions
6-7-7
Chapter 6-7
UP/DOWN Command Frequency Memory (n62)
• This function changes the reference frequency by turning the UP and
DOWN commands on and off.
• In order to use this function, set n39 for multi-function inputs 4 to 34. Then
the multi-function input 3 (S4) and multi-function input 4 (S5) terminals
are set as described below.
Multi-function input 3 (S4): UP command (The value in n38 for multifunction input 3 is ignored.)
Multi-function input 4 (S5): DOWN command
• The output frequency held by the UP/DOWN function will be stored in the
memory if n62 for UP/DOWN command frequency memory is set to 1.
• By setting n62 to 1, the frequency reference kept on hold for 5 s or more
will be retained even after a power interruption, and operation will be
restarted at this frequency the next time the RUN command is input.
• The stored output frequency will be cleared from the memory if n62 is set
to 0. The retained frequency is initialized with n01 for parameter
initialization set to 8 or 9.
Note
n62
Setting
range
While this function is used, frequency references can be used with the UP/
DOWN command or inching frequency command. All multi-step speed
references are disabled.
Frequency Hold Function Selector
0, 1
Unit of
setting
1
Changes during
operation
Default setting
No
0
85
Other Functions
Chapter 6-7
Set Values
Value
Description
0
1
The frequency on hold is not retrained.
The frequency on hold for 5 s or more is retailed.
Operation of UP/DOWN Function
RUN command
(Forward rotation)
Time
UP command
(S4)
Time
DOWN command
(S5)
Time
Output frequency
Upper limit
Lower limit
Time
Status
Frequency
detection
Note
Time
Status
U: UP (acceleration)
D: DOWN (deceleration)
H: Hold
U1: Frequency acceleration restricted by upper limit.
D1: Frequency deceleration restricted by lower limit.
The following ON/OFF combinations of UP and DOWN commands are
possible.
Command
S4 (UP command)
S5 (DOWN command)
Acceleration
ON
OFF
Deceleration
OFF
ON
Hold
OFF
OFF
Hold
ON
ON
With the UP/DOWN function used, the output frequency has the following
restrictions for upper and lower limits.
Upper limit: The maximum frequency in n09 or the frequency reference
upper limit in n30, whichever is smaller.
Lower limit: The minimum output frequency in n14 or frequency reference
lower limit in n31, whichever is smaller.
86
Other Functions
Chapter 6-7
• When the RUN command for forward or reverse rotation is input, the
Inverter will start operating at the lower limit regardless of whether the UP/
DOWN command is input or not.
• When the UP/DOWN function and inching frequency command are both
assigned to multi-function inputs, an inching frequency command input
will have the highest priority.
• If n62 for UP/DOWN command frequency memory is set to 1, the output
frequency held by the UP/DOWN function for 5 s or more will be stored in
the memory. The output frequency will be held by the UP/DOWN function
when both UP and DOWN commands are ON or OFF together.
6-7-8
Error History (n78)
• The J7AZ stores information on the latest error.
• The information on the latest error recorded is displayed by pressing the
Enter Key after n78 for error history is displayed.
• The details of the information are the same as that obtained from the
multi-function monitor U09.
n78
Setting
range
Error History
---
Unit of
setting
Note
---
Changes during
operation
Default setting
-----
The information is read only.
Display Example
· Fault display
· No error stored
uU 1
Fault code
To clear the error history, set n01 for parameter write-prohibit selection/
parameter initialization to 6.
87
Other Functions
88
Chapter 6-7
CHAPTER 7
Communications
7-1
7-2
RS-422/485 Communications Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
90
7-1-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
90
7-1-2
External Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
90
7-1-3
Names of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
91
7-1-4
Mouting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
91
Inverter Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
93
7-2-1
Setting the Communications Conditions. . . . . . . . . . . . . . . . . . . . . .
93
7-2-2
Operation Command Selection (n02) . . . . . . . . . . . . . . . . . . . . . . . .
96
7-2-3
Frequency Reference Input Selection (n03) . . . . . . . . . . . . . . . . . . .
96
7-2-4
Setting the Multi-function Inputs (n36 to n39) . . . . . . . . . . . . . . . . .
97
7-3
Message Communications Basic Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
98
7-4
DSR Message and Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
101
7-4-1
101
Data Read (Function Code: 03 Hex) . . . . . . . . . . . . . . . . . . . . . . . . .
7-4-2
Data Write/Broadcast Data Write (Function Code: 10 Hex). . . . . . .
103
7-4-3
Loop-back Test (Function Code: 08 Hex). . . . . . . . . . . . . . . . . . . . .
106
7-5
Enter Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
108
7-6
Setting the Communications Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
109
7-7
Register Number Allocations in Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
111
7-7-1
I/O Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
111
7-7-2
Monitor Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
112
7-8
Communications Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
115
7-9
Self-diagnostic Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
116
89
RS-422/485 Communications Unit
Chapter 7-1
Using a SI-485/J7 (3G3JV-PSI485J) RS-422/485 Communications Unit allows
J7AZ Inverters to participate in RS-422/485 serial communications. This
makes Inverter control input, frequency reference input, monitoring of the
Inverter’s operating status, and reading and writing of parameter settings all
possible via communications. Up to 32 Inverters can be connected to the Unit
to enable easy creation of networks.
Note
1. The RS-422/485 communications used by J7AZ Inverters conforms to the
MODBUS (a trademark of AEG Schneider Automation) communica-tions
protocol. No other communications protocol can be used in the same
network and only Inverters and related products can be used as Slaves.
2. The communications processing time with RS-422/485 communications
for J7AZ Inverters is proportional to the number of Slaves. When
performing Inverter control, consider the communications processing time,
and restrict the number of Inverters connected according to the response
times required.
3. The communications timeout time with RS-422/485 communications is
fixed at 2 s (when communications timeouts are enabled). In the worst
case, problems with the communications line may not be detected for up
to 2 s. Design the application and overall system to ensure safety allowing
for this.
7-1
RS-422/485 Communications Unit
7-1-1
Overview
• The SI-485/J7 (3G3JV-PSI485J) RS-422/485 Communications Unit is an
Optional Unit for J7AZ Inverters.
• Mounting an RS-422/485 Communications Unit to a 3G3JV Inverter
provides the Inverter with an RS-422/485 interface.
External Dimensions
16
21.5
7-1-2
4 x 3.8 = 15.2
13
29
12
63
90
8
19
8
RS-422/485 Communications Unit
7-1-3
Chapter 7-1
Names of Parts
Terminal block
Terminating resistance switch
Terminal Block
1
S–
2
3
S+
Shield
4
5
R–
R+
Terminating Resistance Switch
SW
OFF
ON
Note
7-1-4
Set the terminating resistance switch to ON to connect the terminating
resistance.
Mouting Procedure
Use the following procedure to mount an RS-422/485 Communications Unit
SI-485/J7 (3G3JV-PSI485J) to a J7AZ Inverter.
1. Turn OFF the Inverter’s power supply. Mounting the RS-422/485
Communications Unit without turning OFF the Inverter’s power supply may
result in electric shock or damage to equipment.
2. Loosen the Inverter’s front cover mounting screws and remove the front
cover as shown on the left below.
3. Remove the optional cover as shown on the right below.
A
91
RS-422/485 Communications Unit
Chapter 7-1
4. Align the Unit with the Inverter’s connector, and push the Unit onto the
Inverter (so that the 3 catches enter the corresponding holes) until it is
securely mounted.
Connector
5. Mount the front cover (removed previously) on top of the RS-422/485
Communications Unit, and secure it using the front cover mounting screws.
(Do not mount the optional cover.)
Note
92
When not using the RS-422/485 Communications Unit, be sure to mount the
optional cover. Not mounting the optional cover will leave charged parts
exposed and may result in electric shock or damage to equipment.
Inverter Settings
7-2
Chapter 7-2
Inverter Settings
7-2-1
Setting the Communications Conditions
Communications Time-over Detection Selection (n68)
• This parameter is used for monitoring the communications system.
• The set value in the parameter determines whether communications timeover detection will be performed with “CE” displayed if there is an interval
of more than 2 s between normal communications. The method to
process the detected communications time-over is also determined
according to the set value in the parameter.
• When a control signal (the RUN command, forward/reverse rotation
command, or an external fault signal) is input into the Inverter through
communications, be sure to set n68 to 0, 1, or 2. Then the system will
stop in the case of a time-over detection. If there is a communications
failure, no control input will be operable. It will be, however, impossible to
stop the Inverter if n68 is to 4 or 3. Use a host program that monitors how
the Inverter handles all control input signals, for example, so that there will
be no interval of more than 2 s between communications.
n68
Setting
range
RS-422A/485 Communications Register
Time-over Detection Selection
0 to 4
Unit of
setting
0144 Hex
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
2
3
4
Description
Detects a time-over and fatal error and coasts to a stop (See note 1.)
Detects a time-over and fatal error and decelerates to a stop in deceleration time 1 (See note 1.)
Detects a time-over and fatal error and decelerates to a stop in deceleration time 2 (See note 1.)
Detects a time-over and nonfatal error warning and continues operating.
The warning is canceled when the communications return to normal. (See note 2.)
No time-over is detected.
Note
1. 1. The fatal error is canceled with error reset input.
2. The nonfatal error warning is canceled when the communications returns
to normal.
Communications Frequency Reference/Display Unit Selection (n69)
• Set this parameter to the unit of frequency reference and frequencyrelated values to be set or monitored through communications.
• This unit is for communications use only and independent from the units
of setting made through the Digital Operator.
n69
Setting
range
RS-422A/485 Communications Register
Frequency Reference/Display
Unit Selection
0 to 3
Unit of
setting
0145 Hex
Changes during
operation
No
1
Default setting
0
93
Inverter Settings
Chapter 7-2
Set Values
Value
0
1
2
3
Description
0.1 Hz
0.01 Hz
Converted value based on 30,000 as max. frequency
0.1% (Max. frequency: 100%)
Note
Communications data after the above conversion is hexadecimal.
For example, if the frequency is 60 Hz and the unit of setting is 0.01 Hz, the
converted value is obtained as follows: 60/0.01 = 6000 = 1770 Hex
Slave Address (n70)
• Set this parameter to the Slave address (Slave unit number) for
communications.
• If more than one Inverter is connected as a Slave, make sure that there
will be no Slave address duplication.
n70
Setting
range
RS-422A/485 Communications Register
Slave Address
00 to 32
Unit of
setting
0146 Hex
1
Changes during
operation
Default setting
No
0
Set Values
Value
00
01 to 32
Description
Only receives broadcast messages from the Master (See note.)
Slave address
Note
Address 00 is for broadcast purposes only. Do not set the Slave to this
address, otherwise the Slave will not communicate.
Communcations Baud Rate and Parity Selection (n71 and n72)
Set the baud rate and parity according to the communications conditions of
the Master.
n71
Setting
range
RS-422A/485 Baud Rate
Selection
0 to 3
Register
0147 Hex
Unit of
setting
1
Set Values
Value
0
1
2
3
94
Description
2,400 bps
4,800 bps
9,600 bps
19,200 bps
Changes during
operation
Default setting
No
2
Inverter Settings
Chapter 7-2
n72
RS-422A/485 Parity Selection
Register
0148 Hex
Changes during
operation
No
Setting
range
0 to 2
Unit of
setting
1
Default setting
2
Set Values
Value
0
1
2
Description
Even
Odd
No parity
In normal serial communications, data is configured in single bytes, and
messages are created by stringing together multiple bytes of data. The parity
check described here sets the check for each byte of data. Set the parity
check method that is required by the Master.
Note
The entire message is checked by a separate check code called “CRC-16,” so
the communications data will be checked even if no special parity check is
performed.
Send Wait Time Setting (n73)
Set this parameter to an awaiting period for returning a response after the
DSR (data-send-request) message is received from the Master.
n73
RS-422A/485 Send Wait Time
Register
0149 Hex
Setting
range
10 to 65 (ms)
Unit of
setting
1 ms
Set Values
Changes during
operation
Default setting
No
10
When the DSR message is received from the Master, the Inverter must wait
for a communications time of 24-bit length plus the set value in n73 before
returning a response. Set this value according to the response time of the
Master.
RTS Control Selection (n74)
• Select whether or not to enable
communications control function.
the
RTS
(request-to-send)
• This function can be disabled (i.e., set to “1”) only when a 1-to-1 Master/
Slave configuration is used in RS-422A communications. When multiple
Slaves are used for RS-422A, or whenever RS-485 communications are
used, it is necessary to set “0” (enable RTS control).
n74
Setting
range
RS-422A/485 RTS Control
Selection
0, 1
Register
014A Hex
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
Description
Enabled
Disabled (Available to 1-to-1 RS-422A communication only)
95
Inverter Settings
7-2-2
Chapter 7-2
Operation Command Selection (n02)
• Select the method to input the RUN or STOP command into the Inverter.
• This parameter is enabled in remote mode only. The Inverter in local
mode accepts the RUN command only through key sequences on the
Digital Operator.
n02
Operation Command Selection Register
0102 Hex
Changes during
operation
No
Setting
range
0 to 2
1
Default setting
0
Unit of
setting
Set Values
Value
0
1
2
Description
The RUN Key and STOP/RESET Key on the Digital Operator are enabled.
Multi-function input terminals are enabled in 2- or 3-wire sequence.
RS-422A/485 communications are enabled.
Note
1. To input the RUN command through RS-422A/485 communications, set
this parameter to 2. Then the RUN command only through RS-422A/485
communications will be enabled.
2. The RUN command can be input through RS-422A/485 with multi-function
input settings as well. For details, refer to 7-2-4 Setting the Multi-function
Inputs (n36 to n39).
7-2-3
Frequency Reference Input Selection (n03)
• Select the method to input the frequency reference into the Inverter in
remote mode.
• Ten methods can be used to input the frequency reference in remote
mode. Select the ideal method according to the application.
n03
Setting
range
Frequency Reference
Selection
0 to 4, 6
Register
0103 Hex
Unit of
setting
1
Changes during
operation
Default setting
No
0
Set Values
Value
0
1
2
3
4
6
Description
The FREQUENCY adjuster on the Digital Operator is enabled.
Frequency reference 1 (n21) is enabled.
Frequency reference control terminal for 0- to 10-V voltage input is enabled.
Frequency reference control terminal for 4- to 20-mA current input is enabled.
Frequency reference control terminal for 0- to 20-mA current input is enabled.
Frequency reference through communications is enabled.
Note
1. To input the frequency reference through RS-422A/485 communications,
set this parameter to 6. Then the frequency reference only through RS422A/485 communications will be enabled.
2. The frequency reference can be input through RS-422A/485 with multifunction input settings as well. For details, refer to 7-2-4 Setting the Multifunction Inputs (n36 to n39).
3. The setting of n03 is valid for frequency reference 1, and is not related to
frequency references 2 to 8. Frequency references 2 to 8 are set in n22 to
n28.
96
Inverter Settings
7-2-4
Chapter 7-2
Setting the Multi-function Inputs (n36 to n39)
• In addition to the methods described above, the RUN command and
frequency reference can be input through RS-422A/485 communications
by setting the value 18 in any one of the parameters from n36 to n39
(multi-function input).
• Subsequently, the following operations are selectable in remote mode.
None of these parameters, however, can be changed while the operation
command is being input.
When the function-set input terminal is OFF, the RUN command will be
executed according to the setting in n02 (operation command selection)
and the frequency reference will be executed according to the setting in
n03 (frequency reference selection).
When the function-set input terminal is ON, the Inverter will operate
according to the RUN command and frequency reference through RS422A/485 communications.
n36
Multi-function input 1 (S2)
Register
0124 Hex
Changes during
operation
Default setting
No
Setting
range
2 to 8, 10 to 22
Unit of
setting
1
n37
Multi-function input 2 (S3)
Register
0125 Hex
Changes during
operation
No
Setting
range
0, 2 to 8, 10 to 22
Unit of
setting
1
Default setting
5
n38
Multi-function input 3 (S4)
Register
0126 Hex
No
Setting
range
2 to 8, 10 to 22
Unit of
setting
1
Changes during
operation
Default setting
n39
Multi-function input 4 (S5)
Register
0127 Hex
No
Setting
range
2 to 8, 10 to 22, 34, 35
Unit of
setting
1
Changes during
operation
Default setting
2
3
6
97
Message Communications Basic Format
7-3
Chapter 7-3
Message Communications Basic Format
The following description provides information on the format of message data
(DSR and response data).
Message communications of the Inverter conform to the MODBUS
Communications Protocol, which does not require message start and end
processing.
(The MODBUS Communications Protocol is a trademark of AEG Schneider
Automation.)
Communications Format
• The following format is used for message data communications.
• Message data consists of a Slave address, function code, communications data, and error check block.
Message data
(DSR message
and response)
Slave address
1 byte
Function code
1 byte
Communications data
Error check block
2 bytes
Message Interval
• When the Inverter receives a DSR message from the Master, the Inverter
waits for a period that is equivalent to 24 bits in length and a Send Wait
Time set in n73. Then the Inverter will return a response. Set n73
according to the Master’s processing time or the timing adjustment.
• When the Master issues the next message after receiving the response
from the Inverter, the Master must wait for a 24-bit period plus another
period of at least 10 ms.
DSR message from Master
Response from Inverter
24-bit (or 3-byte)
standby period
Standby period
set in n73
24-bit (3-byte)
standby period
DSR message from Master
Set a standby period
of 10 ms or more for
the Master
Message Data Configuration
• The communications message is configured entirely of hexadecimal data.
(ASCII and FINS are not used.)
• Communications data is divided into the four areas shown in the following
table.
Data name
Slave address
Description
Set the Slave address (the set value in n70) of the Inverter, to which the DSR message
is sent. The Slave address must be within a range from 00 to 32 (00 to 20 Hex).
A command giving instructions of the details of processing to the Inverter.
Example: Data read (03 Hex) and data write (10 Hex)
Data attached to the command.
Example: The register number of read start data and the number of registers of read
data
CRC-16 check code for checking the reliability of the message data.
Function code
Communications data
Error check
Note
98
In the above communications, the default is –1 (65535) and the LSB (leastsignificant byte) is converted as MSB (most-significant byte) (in the opposite
direction). The CRC-16 check is automatically performed by using the
protocol macro function of OMRON’s SYSMAC CS/CJ-series, C200HX/HG/
HE, or CQM1H Programmable Controllers.
Message Communications Basic Format
Chapter 7-3
Slave Address
• The Master can communicate with a maximum of 32 Slaves over RS422A/485. A unique Slave address is allocated to each Slave (Inverter) for
communications.
• Slave addresses are within a range from 00 to 32 (00 through 20 Hex). If a
DSR message is issued to Slave address 00, the message will be a
broadcast message.
Note
The broadcast message is addressed to all Slaves. Only the RUN command
(register 0001 Hex) and frequency command (register 0002 Hex) can be
written to the message. The Inverter receiving this message does not return a
response regardless of whether or not the message is received properly.
Therefore, for measures against communications errors, the monitor function
of the Inverter should be used for checking the reception of broadcast
messages.
Function Code
• The function code is a command giving instructions of the details of
processing to the Inverter.
• The following three functions codes are available.
#
Function code
03 Hex
Command name
Data read
08 Hex
Loop-back test
10 Hex
Data write
Note
Description
Reads the data of the specified register number. Consecutive data
of a maximum of 16 words (32 bytes) can be read.
The DSR message is returned as a response. This command is
used for checking the status of communications.
The attached data in the format is written to the specified register
number. Consecutive data of a maximum of 16 words (32 bytes)
can be written.
1. Do not use any code other than the above, otherwise the Inverter will
detect a communications error and return an error message.
2. The Inverter uses the same function code for the response. If an error
occurs, however, the MSB of the function code will be set to 1. For
example, if an error occurs in a DSR message with function code 03, the
function code of the response will be 83.
Communications Data
Communications data is attached to the command. The contents and its
arrangement of communications data vary with the function code. For details,
refer to 7-4 DSR Message and Response.
99
Message Communications Basic Format
Chapter 7-3
Error Check
The CRC-16 check code is the remainder (16 bits) when all of the message
blocks from the Slave address to the final communications data are
connected in series, as shown in the following diagram, and this data is
divided by a fixed 17-digit binary number (1 1000 0000 0000 0101).
8 bits
The LSB of the Slave address is handled as the MSB in CRC-16 calculation.
Slave address
Function code
Start of communications data
End of communications data
100
DSR Message and Response
7-4
Chapter 7-4
DSR Message and Response
The following description provides information on how to set DSR messages
and what details are returned as responses. Each DSR message or response
is divided into 8-bit blocks. Therefore, data must be set in 8-bit blocks for
communications.
7-4-1
Data Read (Function Code: 03 Hex)
Settings and Responses
• To read data (such as control I/O status data, monitor item data, or
parameter set value data) from the Inverter, issue the following DSR
message.
• Data read is a maximum of 16 words in length (i.e., data of 32 bytes from
16 registers) per DSR message.
• A register number is allocated to each function item, such as control I/O,
monitor item, and parameter functions. The register number of each
parameter is indicated wherever the parameter is explained in this manual
and in Section 10 List of Parameters. For register numbers other than
those of parameters, refer to 7-7 Register Number Allocations in Detail.
Note
1. A parameter corresponds to one register (one word), so the “number of
registers of read data” indicates the number of parameters to be read (i.e.,
the number of consecutive registers beginning with the first register
number).
1. The “number of bytes of attached data” indicates the number of bytes of
data read from the registers attached from that point onwards. The number
of registers must equal the number of bytes divided by two.
DSR Message
Byte No.
1
2
3
4
5
6
7
8
Data
Slave address
Function code (03 Hex)
Register No. of read start data
Number of registers of read data (max. 16)
CRC-16 check
101
DSR Message and Response
Chapter 7-4
Response
Normal
Byte No.
1
2
3
4
5
6
7
8
9
:
n–1
n
Data
Slave address
Function code (03 Hex)
Number of bytes of attached data
Data of start register
MS B
LSB
MSB
LSB
MSB
LSB
:
Data of next register
Data of next register
:
CRC-16 check
Error
Byte No.
1
2
3
4
5
Data
Slave address
Function code (83 Hex)
Error code
CRC-16 check
Note
When an error occurs, the MSB of the function code will be set to 1.
Example of Data Read
In the following example, four-register data (status signal data) is read from
register 0020 Hex of the Inverter with a Slave address of 02.
DSR Message
Byte No.
1
2
3
4
5
6
7
8
102
Data
Slave address
Function code
Register No. of read start data
Number of registers of read data
CRC-16 check
Data example
(Hex)
02
03
00
20
00
04
45
F0
DSR Message and Response
Chapter 7-4
Response
Normal
Byte No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Data
Slave address
Function code
Number of bytes of attached data
Data in register No. 0020
MS B
LSB
MSB
LSB
MSB
LSB
MSB
LSB
Data in register No. 0021
Data in register No. 0022
Data in register No. 0023
CRC-16 check
Data example
(Hex)
02
03
08
00
65
00
00
00
00
01
F4
AF
82
Error
Byte No.
1
2
3
4
5
7-4-2
Data
Slave address
Function code
Error code
CRC-16 check
Data example
(Hex)
02
83
03
F1
31
Data Write/Broadcast Data Write (Function Code: 10 Hex)
Settings and Response
• To write data to the Inverter, such as control I/O and parameter set value
data, issue the following DSR message.
• Consecutive data of a maximum of 16 words (32 bytes for 16 registers)
can be written per DSR message.
• The register number is allocated to each function item, such as control I/O
and parameter functions. The register number of each parameter is
indicated wherever the parameter is explained in this manual and in
Section 10 List of Parameters. For register numbers other than those of
parameters, refer to 7-7 Register Number Allocations in Detail.
Note
1. A parameter corresponds to one register (one word), so the “number of
registers of write data” indicates the number of parameters to be written
(i.e., the number of consecutive registers beginning with the first register
number).
2. The “number of bytes of attached data” indicates the number of bytes of
data written to the registers attached from that point onwards. The number
of registers must equal the number of bytes divided by two.
103
DSR Message and Response
Chapter 7-4
DSR Message
Byte No.
1
2
3
4
5
6
7
8
9
10
11
12
13
:
n–1
n
Data
Slave address
Function code (10 Hex)
Register No. of write start data
Number of registers of write data (max. 16)
Data of start register
Data of next register
MSB
LSB
MSB
LSB
MSB
LSB
:
Data of next register
Data of next register
:
CRC-16 check
Response
Normal
Byte No.
1
2
3
4
5
6
7
8
Data
Slave address
Function code (10 Hex)
Register No. of write start data
MS B
LSB
MSB
LSB
Number of registers of write data
CRC-16 check
Error
Byte No.
1
2
3
4
5
Data
Slave address
Function code (90 Hex)
Error code
CRC-16 check
Note
1. When an error occurs, the MSB of the function code will be set to 1.
2. A broadcast message uses the same DSR message format. The Slave
address is, however, always set to 00 and only register 0001 Hex (the RUN
command) and register number 0002 Hex (the frequency reference) can
be written.
104
DSR Message and Response
Chapter 7-4
Example of Data Read
In the following example, two-register data (the RUN command) is written
from register 0002 Hex of the Inverter with a Slave address of 01.
DSR Message
Byte No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Data
Slave address
Function code
Register No. of write start data
Number of registers of write data
Data of start register
Data in register No. 0001
MSB
LSB
MSB
LSB
Data in register No. 0002
CRC-16 check
Data
example
(Hex)
01
10
00
01
00
02
04
00
01
02
58
63
39
Response
Normal
Byte No.
1
2
3
4
5
6
7
8
Data
Data example
(Hex)
01
10
00
01
00
02
10
08
Data
Data example
(Hex)
01
90
02
DC
C1
Slave address
Function code
Register No. of write start data
Number of registers of write data
CRC-16 check
Error
Byte No.
1
2
3
4
5
Slave address
Function code
Error code
CRC-16 check
105
DSR Message and Response
7-4-3
Chapter 7-4
Loop-back Test (Function Code: 08 Hex)
Settings and Response
• The DSR message from the Master is returned as a response. The
Inverter does not retrieve or process this data.
• The DSR message or normal response for loop-back test use is divided
into 8-byte blocks as shown below. Any data can be set as test data 1 or 2
provided that the number of data items remains changed.
• This command is used for checking the status of communications or for
dummy communications without detecting any communications time-over.
DSR Message
Byte No.
1
2
3
4
5
6
7
8
Data
Slave address
Function code (08 Hex)
Test data 1
Test data 2
CRC-16 check
Response
Normal
Byte No.
1
2
3
4
5
6
7
8
Data
Slave address
Function code (08 Hex)
Test data 1
Test data 2
CRC-16 check
Error
Byte No.
1
2
3
4
5
Data
Slave address
Function code (88 Hex)
Error code
CRC-16 check
Note
106
When an error occurs, the MSB of the function code will be set to 1.
DSR Message and Response
Chapter 7-4
Example of Loop-back Test
In the following example, a loop-back test is conducted on the Inverter with a
Slave address of 01.
DSR Message
Byte No.
1
2
3
4
5
6
7
8
Data
Data example
(Hex)
01
08
00
00
A5
37
DA
8D
Data
Data example
(Hex)
Slave address
Function code
Test data 1
Test data 2
CRC-16 check
Response
Normal
Byte No.
1
2
3
4
5
6
7
8
Slave address
Function code
Test data 1
01
08
00
00
A5
37
DA
8D
Test data 2
CRC-16 check
Error
Byte No.
1
2
3
4
5
Data
Slave address
Function code
Error code
CRC-16 check
Data example
(Hex)
01
88
01
86
50
107
Enter Command
7-5
Chapter 7-5
Enter Command
The Enter command is used for copying parameter set values that have been
written through communications in and after register 0101 Hex of the RAM
area to the EEPROM of the Inverter. This is done so that the EEPROM can
maintain the parameter set values.
By issuing a DSR message to write data, the data is written to the RAM area
of the Inverter. This data will be lost when the Inverter is turned OFF. Issue the
Enter command to store in the EEPROM of the Inverter the parameter set
value that has been written through communications.
Note
The Enter command is not accepted while the Inverter is running. Be sure to
issue the Enter command while the Inverter is not running.
DSR Message of Enter Command
• The Enter command is issued in response to the DSR message (with a
function code of 10 Hex) to write data.
• By writing data 0000 Hex to be sent to register 0900 Hex, the Inverter
copies to the EEPROM all parameter set values that the Inverter has
received.
Note
1. Only the parameter constants (in and after register 0101 Hex) are stored
in the EEPROM with the Enter command.
The RUN command (in register No. 0001 Hex) is in the RAM area. The
frequency reference (in register 0002 Hex) or any other data in registers
with a number up to 003D Hex is also in the RAM area. Therefore, the
EEPROM does not store these parameters.
2. Data can be written to the EEPROM a maximum of approximately 100,000
times. Therefore, be sure to reduce the number of Enter commands sent
as much as possible.
108
Setting the Communications Data
7-6
Chapter 7-6
Setting the Communications Data
The following description provides information on how to convert the register
data (such as monitor value or parameter set value data) in the
communications data block of the message data (such as DSR and response
data).
Converting the Register Data
• The data in each register is sent as 2-byte data.
• The data in each register is processed under the following rules and sent
in hexadecimal.
The data is converted to a hexadecimal value based on the minimum
unit of setting of each register as 1.
If the frequency reference is 60 Hz and the minimum unit of setting will
be 0.01 Hz, the data will be converted as follows:
60 (Hz)/0.01 (Hz) = 6000 = 1770 Hex
Note
1. The minimum unit of setting of each parameter is indicated whenever the
parameter is explained in Section 10 List of Parameters. For registers other
than those of parameters, refer to 7-7 Register Number Allocations in
Detail.
2. The minimum unit of setting of frequency reference data or frequency
monitor data is determined by n69 (register 0145 Hex: RS-422A/485
communications frequency reference/monitor unit selection). The unit of
setting of each of the three registers below is determined by the set value
in n69. For the units of setting of these constants, refer to the List of
Parameters. The set value in n69 has nothing to do with frequency data
items set as parameter constants (e.g., frequency references 1 through 8,
inching frequency reference, maximum frequency, minimum output
frequency, jump frequency).
• Monitor Items
Register 0023: Frequency reference monitor
Register 0024: Output frequency monitor
• Communications-dedicated Register
Register 0002: Frequency reference
In spite of the set value in n69, however, set the maximum frequency to
3000 when the frequency reference is executed with a broadcast
message. In this case, the Inverter rounds off any value less than 0.01 Hz.
3. There are parameters that make setting unit changes when the values are
increased with the Digital Operator. The smaller units are, however, used
for communications in such cases. For example, the value in n49 (register
0131 Hex: jump frequency 1) will be set in 0.01-Hz increments if the
frequency is less than 100 Hz and 0.1-Hz increments if the frequency is
100 Hz or over. The value 0.01 Hz is always 1 Hex for communications.
If the jump frequency is 100.0 Hz, the minimum unit of setting will be
0.01 Hz and the data will be converted as follows:
100.0 (Hz)/0.01 (Hz) = 10000 = 2710 Hex
109
Setting the Communications Data
Chapter 7-6
Negative Values Expressed in 2’s Complements
If the frequency reference bias in n42 is –100%, the minimum unit of
setting will be 1% and the data will be converted as follows:
100 (%)/1 (%) = 100 = 0064 Hex
→ 2’s complement: FF9C Hex
Bit reversed.
1 is added.
Note
Whether the data is positive or negative is determined by the parameter set
value. The MSB of negative-value data is always set to 1. Data with its MSB
set to 1 is not, however, always negative-value data.
Setting All Unused Bits to 0
Bits 9 through 15 of the RUN command (register 0001 Hex) are unused.
When writing the data, be sure to set all of these bits to 0. These bits when
read are set to 0.
No Data Settings in Unused Registers
Registers described “not used” may be used for internal processing. Do not
write any data to such registers.
110
Register Number Allocations in Detail
7-7
Chapter 7-7
Register Number Allocations in Detail
The following description provides information on register numbers allocated
to the Inverter and the meanings of the registers. As for the register numbers
of the parameters (n01 through n79), refer to Section 10 List of Parameters
and the description of each of these parameters wherever explained in this
manual.
7-7-1
I/O Function
Communications with a Single Slave with Addresses 01 to 32 (01 to 20 Hex)
Read/Write
Register No. (Hex)
Function
0000
Not used.
0001
RUN command
0002
Frequency reference
0003
V/f gain
0004 to 0008
0009
000A to 000F
Not used.
Inverter output
Not used.
Note
Description
--Refer to the table below.
Set the frequency reference in the unit according to the set
value in n69.
Set on condition that 100% is 1000 within a range from 2.0 to
200.0% (20 to 2000). (See note 1.)
--Refer to the table below.
---
1. The V/f gain is a rate to be multiplied by the output voltage obtained from
V/f operation. If 1000 (03E8 Hex) is set, the multiplication rate will be 1.
2. When the above registers are read, values that are set through
communications will be read. For example, when the RUN command
(register 0001) is read, the control input in the register that was previously
set through communications will be returned. This is not a value monitored
through the input signal terminal. To monitor the actual status of the
Inverter, use the monitor functions (refer to 7-7-2 Monitor Functions.
RUN Command (Register 0001 Hex)
Bit No.
0
1
2
3
4
5
6
7
8
9 to 15
Function
RUN command (1: RUN)
Forward/Reverse (1: Reverse)
External fault (External fault EF0)
Fault reset (1: Fault reset)
Not used.
Multi-function input 1 (1: ON)
Multi-function input 2 (1: ON)
Multi-function input 3 (1: ON)
Multi-function input 4 (1: ON)
Not used.
Note
There is an OR relationship between input from the control terminals and
input through communications, except for the RUN command and forward/
reverse rotation command.
Inverter Output (Register 0009 Hex)
Bit No.
0
1 to 15
Function
Multi-function contact output (1: ON)
Not used.
Note
The settings will be enabled if multi-function output n40 is set to 18 for
communications output. Then the output terminals (MA to MC) will be turned
ON and OFF through communications.
111
Register Number Allocations in Detail
Chapter 7-7
Broadcast Message with Slave Address: 00 (00 Hex) Write
Register No. (Hex)
Function
0000
Not used.
0001
RUN command
0002
Frequency reference
0003 to 000F
Not used.
Note
Description
--Refer to the table below.
Set the frequency reference based on the maximum
frequency as 30,000.
---
1. Data can be written to registers 0001 and 0002 only. Assumed previous
values are held for unused registers.
2. No data can be written to multi-function input.
3. The unit of setting of the broadcast message is different from that in the
DSR message to communicate with a single Slave.
RUN Command (Register 0001 Hex)
Bit No.
0
1
2 to 3
4
5
4 to 15
7-7-2
Function
RUN command (1: RUN)
Forward/Reverse (1: Reverse)
Not used.
External fault (1: External fault EF0)
Fault reset (1: Fault reset)
Not used.
Monitor Functions
Register No. (Hex)
Function
0020
Status signal
Description
Refer to the following corresponding table.
0021
0022
0023
0024
0025 to 0026
0027
0028
0029 to 002A
002B
002C
002D
002E to 0030
0031
0032 to 003C
003D
003E to 00FF
Refer to the following corresponding table.
Refer to the following corresponding table.
According to the set value in n69.
According to the set value in n69.
--Read based on 1 A as 10.
Read based on 1 V as 1.
--Refer to the following corresponding table.
Refer to the following corresponding table.
Refer to the following corresponding table.
--Read based on 1 V as 1.
--Refer to the following corresponding table.
---
112
Fault status
Data link status
Frequency reference
Output frequency
Not used.
Output current
Output voltage
Not used.
Input terminal status
Inverter status 1
Output terminal status
Not used.
Main circuit DC voltage
Not used.
Communications error
Not used.
Register Number Allocations in Detail
Chapter 7-7
Status Signal (Register 0020 Hex)
Bit No.
0
1
2
3
4
5
6 to 15
Function
During RUN (1: During RUN)
Forward/reverse operation (1: Reverse operation)
Inverter ready (1: Ready)
Fault (1: Fault)
Data setting error (1: Error)
Multi-function output (1: ON)
Not used.
Fault Status (Register 0021 Hex)
Bit No.
0
1
2
3
4
5
6
7
Function
OC
OV
OL2
OH
Not used.
Not used.
Not used.
EF_, STP
Note
Bit No.
8
9
10
11
12
13
14
15
Function
F_
OL1
OL3
Not used.
UV1
GF
CE
Not used.
When a fault results, the corresponding bit will be set to 1.
Data Link Status (Register 0022 Hex)
Bit No.
0
1 to 2
3
4
5 to 15
Function
Data writing (1: Writing)
Not used.
Upper and lower limit error (1: Error): Outside set range
Verify error (1: Error): Same as OPE_.
Not used.
Input Terminal Status (Register 002B Hex)
0
1
2
Bit No.
Function
Forward/stop terminal (S1) (1: ON)
Multi-function input terminal 1 (S2) (1: ON)
Multi-function input terminal 2 (S3) (1: ON)
3
4
5 to 15
Multi-function input terminal 3 (S1) (4: ON)
Multi-function input terminal 4 (S5) (1: ON)
Not used.
113
Register Number Allocations in Detail
Chapter 7-7
Inverter Status 1 (Register 002C Hex)
Bit No.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Function
During RUN (1: During RUN)
Zero speed (1: Zero speed)
Frequency agree (1: Frequency agree)
Warning (Nonfatal error) (1: Warning)
Frequency detection 1 (1: Output frequency ≤n58)
Frequency detection 2 (1: Output frequency ≥n58)
Inverter ready (1: Ready)
UV (1: UV)
Base block (1: Base block)
Frequency reference mode (1: Other than communications)
RUN command mode (1: Other than communications)
Overtorque detection (1: Overtorque detection)
Not used.
Fault retry (1: Fault retry)
Fault (1: Fault)
Communications time-over: No normal communications for 2 s or more
(1: Communications time-over detecting)
Output Terminal Status (Register 002D Hex)
Bit No.
0
1 to 15
Function
Multi-function contact output terminal MA (1: ON)
Not used.
Communications Error (Register 003D Hex)
Bit No.
0
1
2
3
4
5
6
7 to 15
114
Function
CRC error (1: Error)
Data length error (1: Error)
Not used.
Parity error (1: Error)
Overrun error (1: Error)
Framing error (1: Error)
Communications time-over (1: Error)
Not used.
Communications Error Codes
7-8
Chapter 7-8
Communications Error Codes
The Inverter will detect a communications error if normal communications fail
or a message data error occurs.
The Inverter returns a response that consists of the Slave address, function
code with the MSB set to 1, error code, and CRC-16 check block when the
communications error is detected.
When the Master receives an error code, refer to the following table for
troubleshooting and remedying the error.
Errors and Remedies
Error code
Name
01 Hex
Function code error
02 Hex
Register number error
03 Hex
Data number error
21 Hex
Data setting error
22 Hex
Write mode error
Probable cause
The function code is set to a code other than 03, 08, or
10 Hex.
The specified register number has not been registered.
An attempt was made to read the register of the Enter
command.
The number of write or read registers is not within a
range from 1 to 16 (0001 and 0010 Hex).
The number of registers of the DSR message multiplied
by two does not coincide with the number of bytes of the
attached data.
The write data is not within the permissible range.
The data set is illegal and causes an OPE (OPE1
through OPE9) error.
The Inverter in operation received a DSR message to
write data to a parameter that prohibits any data to be
written while the Inverter is running.
The Enter command was received while the Inverter is
running.
The Inverter detecting UV received a DSR message to
write data.
The Inverter detecting UV received the Enter command.
The Inverter detecting F04 for an initialization memory
fault received a DSR message other than that for
parameter initialization (with n01 set to 8 or 9).
The Inverter processing data written received a DSR
message to write data.
A DSR message to a read-only register was received.
Remedy
Check and correct the
function code.
Check and correct the
register number.
Check and correct the
number of registers or
the number of bytes.
Check the display on
the Digital Operator and
correct the data.
Write the data after
stopping the Inverter.
Write the data after
restoring the UV (main
circuit (main circuit
undervoltage) status.
Turn the Inverter OFF
and ON after parameter
initialization with n01
set to 8 or 9.
Wait for an elapse
period equivalent to 24
bits plus a minimum of
10 ms to issue the
message after a
response is received
from the Inverter.
Check and correct the
register number.
115
Self-diagnostic Test
7-9
Chapter 7-9
Self-diagnostic Test
The Inverter incorporates a self-diagnostic test function that checks whether
RS-422A/485 communications are functioning. If the Inverter has a
communications failure, take the steps provided below to check whether the
communications function of the Inverter is normal.
Self-diagnostic Test Steps
1. Set the Parameter
Set n39 for multi-function input 4 (S5) to 35 through the Digital Operator.
2. Turn OFF the Inverter and Wire the Terminal
Turn OFF the Inverter and wire the following control terminals. At this time,
make sure that all other circuit terminals are open.
Set SW7 to NPN.
Connect S5 and SC.
Connect R+ and S+.
Connect R± and S±.
3. Turn ON the Inverter and Check the Display
Turn ON the Inverter.
Check the display on the Digital Operator.
Normal
The display is normal with no error code displayed.
Fault
The display shows “CE” (communications time-over) or “CAL”
(communications standby). In either case, the communications circuit
of the Inverter is broken. Replace the Inverter.
116
CHAPTER 8
Communications
8-1
8-2
8-3
Protective and Diagnostic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
118
8-1-1
Fault Detection (Fatal Error) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
118
8-1-2
Warning Detection (Nonfatal Error) . . . . . . . . . . . . . . . . . . . . . . . . .
121
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
123
8-2-1
123
Parameters Fail Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2-2
Motor Fails to Operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
123
8-2-3
Motor Rotates in the Wrong Direction . . . . . . . . . . . . . . . . . . . . . . .
124
8-2-4
Motor Outputs No Torque or Acceleration is Slow . . . . . . . . . . . . .
125
8-2-5
Motor Deceleration is Slow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
125
8-2-6
Motor Burns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
125
8-2-7
Controller or AM Radio Receives Noise when Inverter is Started . .
126
8-2-8
Ground Fault Interrupter is Actuated when Inverter is Started . . . . .
126
8-2-9
Mechanical Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
126
8-2-10 Motor Rotates after Output of Inverter is Turned Off. . . . . . . . . . . .
127
8-2-11 Detects OV when Motor Starts and Motor Stalls . . . . . . . . . . . . . . .
127
8-2-12 Output Frequency Does Not Reach Frequency Reference . . . . . . . .
127
8-2-13 Inverter Does Not Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
127
Maintenance and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
128
117
Protective and Diagnostic Functions
8-1
Chapter 8-1
Protective and Diagnostic Functions
8-1-1
Fault Detection (Fatal Error)
The Inverter will detect the following faults if the Inverter or motor burns or the
internal circuitry of the Inverter malfunctions. When the Inverter detects a
fault, the fault code will be displayed on the Digital Operator, the fault contact
output will operate, and the Inverter output will be shut off causing the motor
to coast to a stop. The stopping method can be selected for some faults, and
the selected stopping method will be used with these faults. If a fault has
occurred, refer to the following table to identify and correct the cause of the
fault. Use one of the following methods to reset the fault after restarting the
Inverter. If the operation command is being input, however, the reset signal
will be ignored. Therefore, be sure to reset the fault with the operation
command turned off.
• Turn on the fault reset signal. A multi-function input (n36 to n39) must be
set to 5 (Fault Reset).
• Press the STOP/RESET Key on the Digital Operator.
• Turn the main circuit power supply off and then on again.
Fault Displays and Processing
Fault
display
%c
Fault name and meaning
Probable cause and remedy
Overcurrent (OC)
• A short-circuit or ground fault has occurred and at the
Inverter output.
The Inverter output current is as
→ Check and correct the motor power cable.
high as or higher than 200% of the
rated output current.
• The V/f setting is incorrect.
→ Reduce the V/f set voltage.
• The motor capacity is too large for the Inverter.
→ Reduce the motor capacity to the maximum permissible motor
capacity.
• The magnetic contactor on the output side of the Inverter has been
opened and closed.
→ Rearrange the sequence so that the magnetic contactor will not
open or close while the Inverter has current output.
%U
uU1
Overvoltage (OV)
The main circuit DC voltage
has reached the overvoltage
detection level
(200-V models: 410 V DC min.;
400-V models: 820 V DC min.).
• The output circuit of the Inverter is damaged.
→ Replace the Inverter.
• The deceleration time is too short.
→ Increase the deceleration time.
• The power supply voltage is too high.
→ Decrease the voltage so it will be within specifications.
• There is excessive regenerative energy due to overshooting
at the time of acceleration.
→ Suppress the overshooting as much as possible.
Main circuit undervoltage (UV1) • Power supply to the Inverter has phase loss, power
input terminal screws are loose, or the power cable is
The main circuit DC voltage has
disconnected.
reached the undervoltage
→ Check the above and take necessary countermeasures.
detection level (200 V DC for the
3G3JV-A2_, 160 V DC for the
• Incorrect power supply voltage
3G3JV-AB_, and 400 V DC for the
→ Make sure that the power supply voltage is within
3G3JV-A4_).
specifications.
• Momentary power interruption has occurred.
→ Use the momentary power interruption compensation
(Set n47 so that the Inverter restarts after power is
restored)
→ Improve the power supply.
• The internal circuitry of the Inverter is damaged.
→Change the Inverter.
118
Protective and Diagnostic Functions
Fault
display
%h
Fault name and meaning
Radiation fin overheated (OH)
The temperature of the radiation
fins of the Inverter has reached
110°C ± 10°C.
Chapter 8-1
Probable cause and remedy
• The ambient temperature is too high.
→ Ventilate the Inverter or install a cooling unit.
• The load is excessive.
→ Reduce the load.
→ Decrease the Inverter capacity.
• The V/f setting is incorrect.
→ Reduce the V/f set voltage.
• The acceleration/deceleration time is too short.
→ Increase the acceleration/deceleration time.
• The ventilation is obstructed.
→ Change the location of the Inverter to meet the
installation conditions.
%l1
• The cooling fan of the Inverter does not work.
→ Replace the cooling fan.
• The load is excessive.
Motor overload (OL1)
→ Reduce the load.
The electric thermal relay actuated
→ Decrease the Inverter capacity.
the motor overload protective
function.
• The V/f setting is incorrect.
→ Reduce the V/f set voltage.
• The value in n11 for maximum voltage frequency is low.
→ Check the motor nameplate and set n11 to the rated frequency.
• The acceleration/deceleration time is too short.
→ Increase the acceleration/deceleration time.
• The value in n32 for rated motor current is incorrect.
→ Check the motor nameplate and set n32 to the rated current.
• The Inverter is driving more than one motor.
→ Disable the motor overload detection function and install an
electronic thermal relay for each of the motors. The motor
overload detection function is disabled by setting n32 to 0.0 or
n33 to 2.
• The motor protective time setting in n34 is short.
→ Set n34 to 8 (the default value).
%l2
Inverter overload (OL2)
The electronic thermal relay has
actuated the Inverter overload
protective function.
• The load is excessive.
→ Reduce the load.
• The V/f setting is incorrect.
→ Reduce the V/f set voltage.
• The acceleration/deceleration time is too short.
→ Increase the acceleration/deceleration time.
• The Inverter capacity is insufficient.
→ Use an Inverter model with a higher capacity.
%l3
gf
ef_
Overtorque detection (OL3)
• The mechanical system is locked or has a failure.
→ Check the mechanical system and correct the cause of
There has been a current or torque
overtorque.
the same as or greater than the
setting in n60 for overtorque
• The parameter settings were incorrect.
detection level and that in n61 for
→ Adjust the n60 and n61 parameters according to the
overtorque detection time. A fault
mechanical system. Increase the set values in n60 and n61.
has been detected with n59 for
overtorque detection function
selection set to 2 or 4.
Ground fault (GF)
• A ground fault has occurred at the Inverter output.
→ Check the connections between the Inverter and motor and reset
The ground fault current at the
the fault after correcting its cause.
output of the Inverter has
exceeded the rated output current
of the Inverter.
External fault _(EF_)
• An external fault was input from a multi-function input.
→ Remove the cause of the external fault.
An external fault has been input
from a multi-function input. A multi- • The sequence is incorrect.
function input 1, 2, 3, or 4 set to 3
→ Check and change the external fault input sequence including
or 4 has operated. The EF number
the input timing and NO or NC contact.
indicates the number of the
corresponding input (S2 to S5).
119
Protective and Diagnostic Functions
Fault
display
f00
f01
f04
f05
f07
ce
Fault name and meaning
Chapter 8-1
Probable cause and remedy
Digital Operator transmission
• The internal circuitry of the Inverter has a fault.
fault 1 (F00)
→ Turn the Inverter off and on.
→ Replace the Inverter if the same fault occurs again.
An initial memory fault has been
detected
Digital Operator transmission
• The internal circuitry of the Inverter has a fault.
fault 2 (F01)
→ Turn the Inverter off and on.
→ Replace the Inverter if the same fault occurs again.
A ROM fault has been detected.
Initial memory fault (F04)
• The internal circuitry of the Inverter has a fault.
→ Initialize the Inverter with n01 set to 8 or 9 and turn the Inverter
An error in the built-in EEPROM of
off and on.
the Inverter has been detected.
→ Replace the Inverter if the same fault occurs again.
Analog-to-digital converter fault • The internal circuitry of the Inverter has a fault.
→ Turn the Inverter off and on.
(F05)
→ Replace the Inverter if the same fault occurs again.
An analog-to-digital converter fault
has been detected.
Digital Operator fault (F07)
• The internal circuitry of the Digital Operator has a fault.
→ Turn the Digital Operator off and on.
An error in the built-in control
→ Replace the Digital Operator if the same fault occurs again.
circuit of the Digital Operator has
been detected.
Communications time-over (CE) • A short-circuit, ground fault, or disconnection has occurred on the
communications line.
Normal RS-422A/485
→ Check and correct the line.
communications were not
established within 2 s.
• The termination resistance setting is incorrect.
The Inverter will detect this error
→ Set the termination resistance of only the Inverter located at
if n68 (RS-422A/485
each end of the network to ON.
communications time-over
• Noise influence.
detection selection) is set to
→ Do not wire the communications line along with power lines
0, 1, or 2.
in the same conduit.
→ Use the twisted-pair shielded wire for the communications line,
and ground it at the Master.
• Master’s program error.
→ Check and correct the program so that communications will
be performed more than once every 2-s period.
stp
0ff
• Communications circuit damage.
→ If the same error is detected as a result of a self-diagnostic test,
change the Inverter.
• An emergency stop alarm is input to a multi-function input.
→ Remove the cause of the fault.
Emergency stop (STP)
An emergency stop alarm is input
to a multi-function input. (A multi- • The sequence is incorrect.
function input 1, 2, 3, or 4 set to 19
→ Check and change the external fault input sequence including
or 21 has operated.)
the input timing and NO or NC contact.
Power supply error
• No power supply is provided.
→ Check and correct the power supply wire and voltage.
• Insufficient power supply voltage
• Control power supply fault
• Terminal screws are loosened.
• Hardware fault
→ Check and tighten the terminal screws.
• The Inverter is damaged.
→ Replace the Inverter.
120
Protective and Diagnostic Functions
8-1-2
Chapter 8-1
Warning Detection (Nonfatal Error)
The warning detection is a type of Inverter protective function that does not
operate the fault contact output and returns the Inverter to its original status
once the cause of the error has been removed. The Digital Operator flashes
and display the detail of the error. If a warning occurs, take appropriate
countermeasures according to the table below.
Note
Some warnings or some cases stop the operation of the Inverter as described
in the table.
Warning Displays and Processing
Fault display
uU
(flashing)
%U
(flashing)
%h
(flashing)
cal
(flashing)
Warning name and Meaning
Main Circuit Undervoltage (UV)
The main circuit DC voltage has reached
the undervoltage detection level
(200 V DC for the CIMR-J7AZ-2_,
160 V DC for the CIMR-J7AZ-B_, and
400 V DC for the CIMR-J7AZ-4_).
Main Circuit Overvoltage
The main circuit DC voltage has reached
the overvoltage detection level
(200-V models: 410 V DC min.;
400-V models: 820 V DC min.).
Radiation fin overheated (OH)
The temperature of the radiation fins of the
Inverter has reached 110°C ± 10°C.
Communications standby (CAL)
No normal DSR message has been
received during RS-422A/4895
communications. The Inverter detects this
warning only when RUN command
selection (n02) is set to 2 or frequency
reference selection (n03) is set to 6. Until
the warning is reset, no input other than
communications input will be ignored.
Probable cause and remedy
• Power supply to the Inverter has phase loss, power
input terminal screws are loose, or the power line is
disconnected.
→ Check the above and take necessary
countermeasures.
• Incorrect power supply voltage
→ Make sure that the power supply voltage is within
specifications.
• The power supply voltage is too high.
→ Decrease the voltage so it will be within
specifications.
• The ambient temperature is too high.
→ Ventilate the Inverter or install a cooling unit.
• A short-circuit, ground fault, or disconnection has
occurred on the communications line.
→ Check and correct the line.
• The termination resistance setting is incorrect.
→ Set the termination resistance of only the Inverter
located at each end of the network to ON.
• Master’s program error.
→ Check the start of communications and correct
the program.
• Communications circuit damage.
→ If a CAL or CE error is detected as a result of a
self-diagnostic test, change the Inverter.
%l3
(flashing)
ser
(flashing)
bb
(flashing)
Overtorque detection (OL3)
There has been a current or torque the
same as or greater than the setting in n60
for overtorque detection level and that in
n61 for overtorque detection time. A fault
has been detected with n59 for overtorque
detection function selection set to 1 or 3.
• The mechanical system is locked or has a failure.
→ Check the mechanical system and correct the cause
of overtorque.
Sequence error (SER)
A sequence change has been input while
the Inverter is in operation. Local or remote
selection is input while the Inverter is in
operation.
Note The Inverter coasts to a stop.
External base block (bb)
The external base block command has
been input.
Note The Inverter coasts to a stop.
• A sequence error has occurred.
→ Check and adjust the local or remote selection
sequence as multi-function input.
• The parameter settings were incorrect.
→ Adjust the n60 and n61 parameters according
to the mechanical system. Increase the set values in
n60 and n61.
• The external base block command has been in-put
as multi-function input.
→ Remove the cause of external base block input.
• The sequence is incorrect.
→ Check and change the external fault input sequence
including the input timing and NO or NC contact.
121
Protective and Diagnostic Functions
Fault display
ef
(flashing)
stp
(flashing)
fRn
(flashing)
Warning name and Meaning
Forward- and reverse-rotation input (EF)
The forward and reverse commands are
input to the control circuit terminals
simultaneously for 0.5 s or more.
Note The Inverter stops according to the
method set in n04.
Emergency stop (STP)
The Digital Operator stops operating. The
STOP/RESET Key on the Digital Operator
is pressed while the Inverter is operating
according to the forward or reverse
command through the control circuit
terminals.
Note The Inverter stops according to the
method set in n04.
The emergency stop alarm signal is input as
multi-function input. A multi-function input 1,
2, 3, or 4 set to 20 or 22 has been used.
Note The Inverter stops according to the
method set in n04.
Cooling fan fault (FAN)
The cooling fan has been locked.
Chapter 8-1
Probable cause and remedy
• A sequence error has occurred.
→ Check and adjust the local or remote selection
sequence.
• The parameter setting was incorrect.
→ Turn off the forward or reverse command once,
check that the n06 parameter setting for
STOP/RESET Key function selection, and restart
the Inverter.
• An emergency stop alarm is input to a multi-function
input.
→ Remove the cause of the fault.
• The sequence is incorrect.
→ Check and change the external fault input sequence
including the input timing and NO or NC contact.
• The cooling fan wiring has a fault.
→ Turn off the Inverter, dismount the fan, and check
and repair the wiring.
• The cooling fan in not in good condition.
→ Check and remove the foreign material or dust on
the fan.
ce
• The cooling fan is beyond repair.
→ Replace the fan.
• A short-circuit, ground fault, or disconnection has
Communications time-over (CE)
occurred on the communications line.
Normal RS-422A/485 communications
→ Check and correct the line.
were not established within 2 s. The Inverter
• The termination resistance setting is incorrect.
will detect this error if n68 (RS-422A/485
→ Set the termination resistance of only the Inverter
communications time-over detection seleclocated at each end of the network to ON.
tion) is set to 0, 1, or 2.
• Noise influence.
→ Do not wire the communications line along with
power lines in the same conduit.
→ Use the twisted-pair shielded wire for the
communications line, and ground it at the Master.
• Master’s program error.
→ Check and correct the program so that
communications will be performed more than once
every 2-s period.
• Communications circuit damage.
→ If the same error is detected as a result of a
self-diagnostic test, change the Inverter.
%p1
(flashing)
%p2
(flashing)
%p3
(flashing)
%p4
(flashing)
%p5
(flashing)
122
Operation error (OP_)
(Parameter setting error)
• The values in n36 through n39 for multi-function inputs
1 through 4 have been duplicated. .
→ Check and correct the values.
• The V/f pattern settings do not satisfy the following
condition. n14 O n12 < n11 O n09
→ Check and correct the set value.
• The rated motor current set in n32 exceeds 150% of
the rated output current of the Inverter.
→ Check and correct the value.
• The frequency reference upper limit set in n30 and the
frequency reference lower limit set in n31 do not satisfy
the following condition. n30 P n31
→ Check and correct the set values.
• The jump frequencies set n49, n50 do not satisfy the
following condition. n49 P n50
→ Check and correct the set values.
Troubleshooting
8-2
Chapter 8-2
Troubleshooting
Due to parameter setting errors, faulty wiring, and so on, the Inverter and
motor may not operate as expected when the system is started up. If that
should occur, use this section as a reference and apply the appropriate
measures.
Refer to 8-1 Protective and Diagnostic Functions, if the contents of the fault
are displayed.
8-2-1
Parameters Fail Set
The display does not change when the Increment or Decrement Key is pressed.
Parameter write-prohibit is
input.
This occurs when n01 for parameter write-prohibit selection/parameter
initialization is set to 0. Set n01 to an appropriate value according to the
parameter to be set.
The Inverter is operating.
There are some parameters that cannot be set during operation. Refer to
the list of parameters.
Turn the Inverter off and then make the settings.
The Digital Operator does
not display anything.
Turn the Inverter off and on. If the Digital Operator still does not display
anything, the internal circuitry of the Inverter must have failed. Replace the
Inverter.
8-2-2
Motor Fails to Operate
The motor does not operate with input through the control circuit terminals even
though the frequency reference is correct.
The operation method
setting is incorrect.
If parameter n02 for operation mode selection is not set to 1 to enable the
control circuit terminals, the RUN command cannot be executed through
the control circuit terminals.
Check and correct the setting in n02.
Input in 2-wire sequence
while 3-wire sequence is
in effect and vice-versa.
The Inverter will operate in 3-wire sequence according to the RUN, stop,
and forward/stop commands if n37 for multi-function input 2 is set to 0. At
that time, the Inverter will not operate if input in 2-wire sequence is ON. On
the other hand, the Inverter in 2-wire sequence will only rotate in the
reverse direction if input in 3-wire sequence is ON.
Check and correct the setting in n37 or change the input method of the
RUN command.
The Inverter is not in RUN
mode.
When the PRGM or LO/RE indicator (red indicator) of the Digital Operator
is lit, the Inverter does not start.
Cancel the RUN command, press the Mode Key to change the mode of the
Inverter, and restart the Inverter with the green indicator lit.
The frequency reference
is too low.
If the frequency reference is set below the minimum output frequency set
in n14, the Inverter will not operate.
Raise the frequency reference to at least the minimum output frequency.
The Inverter is in local
mode.
The Inverter in local mode starts with the RUN command given with the
RUN Key pressed.
Check the LO/RE indicator. If the display is “Lo,” the Inverter is in local
mode. Press the Increment Key and set the Inverter to remote mode with
“rE” displayed.
If the above operation is not possible, a multi-function input is set to local/
remote selection. In that case, the mode can be changed with the multifunction input only. Turn the corresponding input terminal OFF so that the
Inverter will be set to remote mode.
123
Troubleshooting
The wiring on the Inverter
control circuit terminals is
incorrect.
Chapter 8-2
The Inverter cannot check input signals if the input wiring on the control
circuit terminals is incorrect.
Operate the Digital Operator and check the input terminal status of multifunction monitor U06.
The NPN or PNP input sequence is selectable. The NPN input sequence
is the default setting.
Refer to 2-2-2 Terminal Block and check that the setting of switch SW7 and
wiring are correct.
The motor does not operate with input through the control circuit terminals.
(The frequency reference is zero or different from the set value.)
The frequency reference
setting is incorrect.
The analog input of frequency references is ignored with the Digital
Operator selected. The digital input of frequency references is ignored
unless the Digital Operator is selected.
Check that the setting in n03 for frequency reference selection coincides
with the actual method of giving frequency instructions.
Before using analog input, refer to 2-2-2 Terminal Block and check that the
setting of SW8 and the actual method (with voltage and current) of
providing frequency references are correct.
The Inverter is in local
mode.
Frequency references can be provided only through key sequences on the
Digital Operator or with the FREQ adjuster to the Inverter in local mode.
Check the LO/RE indicator. If the display is “Lo,” the Inverter is in local
mode. Press the Increment Key and set the Inverter to remote mode with
“rE” displayed.
If the above operation is not possible, the multi-function input will be set to
local/remote selection. In that case, the mode can be changed with the
multi-function input only. Turn the corresponding input terminal OFF so that
the Inverter will be set to remote mode.
The analog input gain or
bias setting is incorrect.
Check that the frequency reference gain in n41 and frequency reference
bias in n42 are set according to the actual analog input characteristics.
The motor stops during acceleration or when a load is connected.
The load may be too big.
The J7AZ has a stall prevention function and automatic torque boost
function, but the motor responsiveness limit may be exceeded if
acceleration is too rapid or if the load is too big.
Lengthen the acceleration time or reduce the load. Also consider
increasing the motor capacity.
The motor only rotates in one direction.
Reverse rotation-prohibit
is selected.
If n05 for reverse rotation-prohibit selection is set to 1 (reverse run
prohibited), the Inverter will not accept reverse-rotation commands.
To use both forward and reverse rotation, set n05 to 0.
8-2-3
Motor Rotates in the Wrong Direction
The output wiring of the
motor is faulty.
124
When the U/T1, V/T2, and W/T3 terminals of the Inverter are properly
connected to the T1(U), T2(V), and T3(W) terminals of the motor, the
motor operates in a forward direction when a forward rotation command is
executed. The forward direction depends on the maker and the motor type.
Therefore, be sure to check the specifications. Switching two wires among
the U/T1, V/T2, and W/T3 will reverse the direction of rotation.
Troubleshooting
8-2-4
Chapter 8-2
Motor Outputs No Torque or Acceleration is Slow
The stall prevention level
during running is too low.
If the value in n57 for stall prevention level during operation is too low, the
speed will drop before torque output is turned ON.
Check to be sure that the set value is suitable.
The stall prevention level
during acceleration is too
low.
8-2-5
If the value in n56 for stall prevention level during acceleration is too slow,
the acceleration time will be too long.
Check to be sure that the set value is suitable.
Motor Deceleration is Slow
The deceleration time
setting is too long.
Check the deceleration time settings in n17 and n19.
Stall Prevention during
Deceleration
The Inverter incorporates a stall prevention function that will automatically
prolong the period of deceleration if the motor has an excessive amount of
regenerative energy. This function will operate if the period of deceleration
is longer than the set value. If the period of deceleration needs to coincide
with the set value, use an Inverter model with a larger capacity or a model
incorporating a function to process regenerative energy (such as the
VARISPEED V7 or 3G3EV-series Inverter).
8-2-6
Motor Burns
The load is too big.
If the load of the motor is too big and the motor is used with the effective
torque exceeding the rated torque of the motor, the motor will burn out. For
example, the rated torque of the motor and capacity may be limited to eight
hours of use if the inscription on the motor states that the motor is rated for
eight hours. If the 8-hour rated torque is used for normal operation, it may
cause the motor to bun out.
Reduce the load amount by either reducing the load or lengthening the
acceleration/deceleration time. Also consider increasing the motor capacity.
The ambient temperature
is too high.
The rating of the motor is determined within a particular ambient operating
temperature range. The motor will burn out if it runs continuously at the
rated torque in an environment in which the maximum ambient operating
temperature is exceeded.
Lower the ambient temperature of the motor to within the acceptable
ambient operating temperature range.
The withstand voltage
between the phases of the
motor is insufficient.
When the motor is connected to the output of the Inverter, a surge will be
generated between the switching of the Inverter and the coil of the motor.
Normally, the maximum surge voltage is approximately three times the
input power supply voltage of the Inverter (i.e., approximately 600 V for
200-V models, and approximately 1,200 V for 400-V models).
Therefore, the dielectric strength of the motor to be used must be higher
than the maximum surge voltage.
125
Troubleshooting
8-2-7
Chapter 8-2
Controller or AM Radio Receives Noise when Inverter is Started
Noise derives from
Inverter switching.
Take the following actions to prevent noise.
• Lower the carrier frequency of the Inverter in n46.
The number of internal switching times is reduced, so noise can be
reduced to some extent.
• Install an Input Noise Filter.
Install an Input Noise Filter on the power input area of the Inverter.
• Install an Output Noise Filter.
Install an Output Noise Filter on the output area of the Inverter.
• Use metal tubing.
Electric waves can be shielded by metal. Therefore, enclose the
Inverter with a metal tube.
8-2-8
Ground Fault Interrupter is Actuated when Inverter is Started
Leakage current flows
through the Inverter.
The Inverter performs internal switching. Therefore, a leakage current
flows through the Inverter. This leakage current may actuate the ground
fault interrupter, shutting the power off.
Use a ground fault interrupter with a high leakage-current detection value
(sensitivity amperage of 200 mA or more, operating time of 0.1 s or more)
or one with high-frequency countermeasures for Inverter use.
Reducing the carrier frequency value in n46 is also effective.
In addition, remember that a leakage current increases in proportion to the
cable length. Normally, approximately 5 mA of leakage current is
generated for each meter of cable.
8-2-9
Mechanical Vibration
Mechanical system makes unusual noise.
Resonance between the
characteristic frequency
of the mechanical system
and the carrier frequency.
There may be resonance between the characteristic frequency of the
mechanical system and the carrier frequency. If the motor is running with
no problems and the machinery system is vibrating with a high-pitched
whine, it may indicate that this is occurring. To prevent this type of
resonance, adjust the carrier frequency value in n46.
Resonance between the
characteristic frequency
of a machine and the
output frequency of the
Inverter.
There may be resonance between the characteristic frequency of a
machine and the output frequency of the Inverter. To prevent this from
occurring, use the frequency jump function with the constants set in n49
through n51 to change the output frequency or install vibration-proof
rubber on the motor base to prevent the resonance of the mechanical
system.
Vibration and hunting are occurring.
Influence by the slip
compensation function.
The slip compensation function of the Inverter may influence the
characteristic frequency of the mechanical system to cause vibration or
hunting. In that case, increase the time constant in n67 for slip
compensation. The larger this time constant is, however, the slower the
response speed of the slip compensation function will be.
Motor vibrates excessively and does not rotate normally.
Motor Phase Interruption
126
If one or two of the three phases of the motor are open, the motor will
vibrate excessively and will not rotate. Check that the motor is wired
correctly without any disconnection. The same phenomenon will occur if
the output transistor of the Inverter is open and damaged. Check the
balance of the Inverter’s output voltage as well.
Troubleshooting
Chapter 8-2
8-2-10 Motor Rotates after Output of Inverter is Turned Off
Insufficient DC Control
If the motor continues operating at low speed, without completely stopping,
and after a deceleration stop has been executed, it means that the DC
braking is not decelerating enough.
In such cases, adjust the DC control as described below.
• Increase the parameter in n52 for DC control current.
• Increase the parameter in n53 for interruption DC control time.
8-2-11 Detects OV when Motor Starts and Motor Stalls
Insufficient DC control at
startup
Generation of OV and stalling can occur if the motor is turning when it is
started.
This can be prevented by slowing the rotation of the motor by DC braking
before starting the motor.
Increase the parameter in n54 for startup DC control time.
8-2-12 Output Frequency Does Not Reach Frequency Reference
The frequency reference
is within the jump
frequency range.
If the jump function is used, the output frequency stays within the jump
frequency range.
The preset output
frequency exceeds the
upper-limit frequency.
The upper-limit frequency can be obtained from the following formula.
Maximum frequency in n09 × frequency reference upper limit in n30/100
Make sure that the jump width settings in n49 through n50 for jump
frequencies 1 and 2 and jump width in n51 are appropriate.
Make sure that the parameters in n09 and n30 are correct.
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
Sequence Error
An EF will be detected if a forward command and a reverse command are
input simultaneously for 0.5 seconds or longer. Correct the sequence.
Malfunction Due to
Unwanted Current Path
Inverter inputs may remain ON due to an unwanted current path for the
controller outputs. With the wiring shown in the following table, if the
controller output power supply is less than 24 V DC or if the power is OFF,
the current indicated by the arrow will flow and the Inverter inputs will
operate. If that occurs, insert a diode as shown in the diagram at point A.
Section A
Controller (Output unit)
Inverter (Control input)
S1 to S5
SC
GND
127
Maintenance and Inspection
8-3
Chapter 8-3
Maintenance and Inspection
! WARNING
! WARNING
Do not touch the Inverter terminals while the power is being supplied.
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 replace fans while power is being supplied. Doing so may result in injury,
damage to the product, or malfunction.
Daily Inspection
Check the following items with the system in operation.
• The motor should not be vibrating or making unusual noises.
• There should be no abnormal heat generation.
• The output current value shown on the monitor display should not be
higher than normal.
• The cooling fan on the bottom of the Inverter should be operating
normally, if the Inverter model has the cooling fan.
Periodic Inspection
Check the following items during periodic maintenance.
Before beginning inspection, be sure to turn off the power supply. Confirm that
all the indicators on the front panel have turned off, and then wait until at least
1 minute has elapsed before beginning the inspection.
Be sure not to touch the terminals right after the power has been turned off.
Otherwise, an electric shock may occur.
• The terminal screws of the Inverter should not loose.
• There should be no conductive dust or oil mist on the terminal block or
inside the Inverter.
• The mounting screws of the Inverter should not be loose.
• No dirt or dust should be accumulating on the radiation fin.
• No dust should be accumulating on the vents of the Inverter.
• There should be no abnormalities in the outward appearance of the
Inverter.
• There should be no unusual noises or vibration and the accumulated
operating time should not exceeded the specifications.
128
Maintenance and Inspection
Chapter 8-3
Periodic Maintenance Parts
The Inverter is configured of many parts, and these parts must operate
properly in order to make full use of the Inverter’s functions. Among the
electronic components, there are some that require maintenance depending
on their usage conditions. In order to keep the Inverter operating normally
over a long period of time, it is necessary to perform periodic inspections and
replace parts according to their service life.
Periodic inspection standards vary with the installation environment and
usage conditions of the Inverter.
The maintenance periods of the Inverter are described below. Keep them as
reference.
Maintenance Periods (Reference)
• Cooling fan: 2 to 3 years
• Electrolytic capacitor: 5 years
• Fuse: 10 years
The usage conditions are as follows:
• Ambient temperature: 40°C
• Load factor: 80%
• Operation: 8 hours per day
• Installation: According to instructions in manual
It is recommended that the ambient temperature and power-on time be
reduced as much as possible to extend of the life of the Inverter.
Note
For details regarding maintenance, consult your OMRON-YASKAWA representative.
Replacement of Cooling Fan
If the FAN fault is displayed or the cooling fan needs replacement, take the
following steps to replace it.
Cooling Fan Models
3-phase 200-V AC
Single-phase 200-V AC
3-phase 400-V AC
Inverter
CIMR-J7AZ21P5 or 3G3JV-22P2
CIMR-J7AZ24P0
CIMR-J7AZB1P5
CIMR-J7AZ41P5 or CIMR-J7AZ42P2
CIMR-J7AZ44P0
Cooling Fan
FAN001062
FAN001063
FAN001062
FAN001062
FAN001063
Replacing Cooling Fan (68- or 140-mm-wide Inverters)
1. Press the left and right sides of the fan cover located on the lower part of
the radiation fin in the arrow directions. Then lift the bottom of the Fan in
the arrow 2 direction to remove the Fan as shown in the following
illustration.
Radiation fin (Heat sink)
Wind direction
129
Maintenance and Inspection
Chapter 8-3
2. Hold the fan wire and pull the protective tube of the cover in the arrow 3
direction.
Protective tube
There is a connector inside.
Fan wind direction
3. Slide the protective tube and remove the internal connector.
4. Remove the Fan from the fan cover.
5. Mount the new Fan on the fan cover. At this time, make sure that the wind
direction of the Fan will be in the direction of the heat radiation fin.
6. Attach the connector, cover the connector with the protective tube, and
insert the connector into the cover.
7. Mount the fan cover with the new Fan to the lower part of the heat radiation
fin. Make sure that the fan cover snaps on securely with the heat radiation
fin.
Replacing Cooling Fan of
108-mm-wide Inverter
Model
1. Dismount the front cover, bottom cover, and fan connector CN4.
Cooling fan connector
(CN4 built in)
Wiring groove
Heat radiation fin
(Heat sink)
Fan wind direction
2. Press the left and right sides of the fan cover located on the lower part of
the radiation fin in the arrow 1 directions. Then lift the bottom of the Fan in
the arrow 2 direction to remove the fan as shown in the following
illustration.
Disconnect the wire from the electrical inlet on the bottom of the plastic
casing.
3. Remove the Fan from the fan cover.
4. Mount the new Fan on the fan cover. At this time, make sure that the wind
direction of the fan will be in the direction of the heat radiation fin.
5. Mount the fan cover with the new Fan to the lower part of the heat radiation
fin. Make sure that the fan cover snaps on securely with the heat radiation
fin.
6. Wire the power line through the electrical inlet on the bottom of the plastic
casing and the wiring groove into the internal circuitry of the Inverter.
7. Attach the wire to connector CN4 and attach the bottom cover and front
cover.
130
CHAPTER 9
Specifications
9-1
Inverter Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
132
9-2
Specifications of Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
135
9-2-1
List of Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
135
9-2-2
Adapter Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
136
9-2-3
RS-422/485 Communications Unit . . . . . . . . . . . . . . . . . . . . . . . . . .
137
9-2-4
Fan Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
137
9-2-5
Digital Operator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
138
9-2-6
Digital Operator Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
139
9-2-7
Digital Operator Connection Cable. . . . . . . . . . . . . . . . . . . . . . . . . .
139
9-2-8
DC Reactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
139
9-2-9
DIN Track Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
140
9-2-10 AC Reactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
141
Option Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
142
9-3-1
142
9-3
EMC-compatible Noise Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
131
Inverter Specifications
9-1
3-phase
200-V AC
models
Singlephase
200-V AC
models
Inverter Specifications
Model CIMR-J´7AZ
Power
Rated voltage
supply
and frequency
Allowable voltage
fluctuation
Allowable frequency
fluctuation
Power supply capacity (kVA)
(See note 1.)
Heat radiation (W)
Weight (kg)
Cooling method
20P1
20P2
20P4
20P7
3-phase 200 to 230 V AC at 50/60 Hz
Model CIMR-J7AZ
Power
Rated voltage and
supply
frequency
Allowable voltage
fluctuation
Allowable frequency
fluctuation
Power supply capacity (kVA)
(See note 1.)
Heat radiation (W)
(See note 2.)
Weight (kg)
Cooling method
B0P1
B0P2
B0P4
B0P7
B1P5
Single-phase 200 to 240 V AC at 50/60 Hz
Max. applicable motor capacity (kW)
Output
Rated output capacity (kVA)
specifiRated output current (A)
cations
Rated output voltage (V)
Max. output frequency
Control
Harmonic-current
characcountermeasures
teristics
Control method
Carrier frequency
Frequency control range
Frequency precision
(temperature characteristics)
Frequency setting resolution
Output frequency resolution
132
Chapter 9-1
21P5
22P2
24P0
–15% to 10%
±5%
0.4
0.9
13.0
18.0
0.5
0.5
Natural cooling
1.6
2.7
4.3
28.1
0.8
45.1
72.8
0.9
1.3
Cooling fan
5.9
9.3
94.8
1.5
149.1
2.1
---
---
–15% to 10%
±5%
0.5
0.9
1.6
2.7
4.3
---
---
14.1
20.0
31.9
51.4
82.8
---
---
0.5
0.5
Natural cooling
0.9
1.5
1.5
--Cooling fan
---
0.1
0.4
0.75
1.5
3.7
0.2
2.2
0.3
0.6
1.1
1.9
3.0
4.2
0.8
1.6
3.0
5.0
8.0
11.0
3-phase 200 to 240 V AC (according to the input voltage)
400 Hz parameter setting
DC reactor (option) connection possible
6.7
17.5
Sine wave PWM (V/f control)
2.5 to 10.0 kHz (in vector control)
0.1 to 400 Hz
Digital commands: ±0.01% (–10°C to 50°C)
Analog commands: ±0.5% (25°C ±10°C)
Digital commands: 0.1 Hz (less than 100 Hz) and 1 Hz (100 Hz or over)
Analog commands: 0.06 Hz/60 Hz (equivalent to 1/1000)
0.01 Hz
Inverter Specifications
Control
characteristics
Chapter 9-1
Overload capacity
External frequency set signal
Acceleration/deceleration time
Braking torque
Protection
function
Voltage/frequency
characteristics
Motor protection
Instantaneous overcurrent
protection
Overload protection
Overvoltage protection
Undervoltage protection
150% of rated output current for 1 min
Selectable with FREQ adjuster: 0 to 10 V DC (20 kW), 4 to 20 mA (250
W), and 0 to 20 mA (250 W)
0.0 to 999 s (Independent acceleration and deceleration time settings:
2 types)
Approx. 20% (Braking Resistor and Braking Unit cannot be
connected.)
Set a user V/f pattern
Protection by electronic thermal
Stops at approx. 250% of rated output current
Stops in 1 min at approximately 150% of rated output current
Stops when main-circuit DC voltage is approximately 410 V
Stops when main-circuit DC voltage is approximately 200 V
(160 V for single-phase 200-V AC model)
Momentary power
Stops for 15 ms or more. By setting the Inverter to momentary
interruption compensation
power interruption mode, operation can be continued if power is
(selection)
restored within approximately 0.5 s.
Cooling fin overheating
Detects at 110°C ±10°C
Grounding protection
Protection at rated output current level
Charge indicator (RUN indicator) Lit when the main circuit DC voltage is approximately 50 V or less.
EnvironLocation
Indoors (with no corrosive gas, oil spray, or metallic dust)
ment
Ambient temperature
Operating: –10°C to 50°C
Ambient humidity
Operating: 95% max. (with no condensation)
Ambient temperature
–20°C to 60°C
Altitude
1,000 m max.
Insulation resistance
5 MWmin. (Do not carry out any insulation resistance or withstand
voltage tests)
Vibration resistance
9.8 m/s2max. between 10 to 20 Hz 2.0 m/s2max. between 20 and
50 Hz
Degree of protection
Panel-mounting models: Conforms to IP20
Note
1. The power supply capacity is the capacity for the Inverter’s rated output. It
will vary depending on the impedance at the input power supply. (This is
due to fluctuations in the power factor. The power factor can be improved
by inserting an AC reactor.) There will also be variations in the ratio
between the rated current of the motor that is used and the rated output
current of the Inverter.
2. The heat radiation is the electric power consumed in the Inverter at the
Inverter’s rated output.
3-phase
400-V AC
models
Model CIMR-J7AZ
Power
Rated voltage and
supply
frequency
Allowable voltage
fluctuation
Allowable frequency
fluctuation
Power supply capacity (kVA)
(See note 1.)
Heat radiation (W) (See note 2.)
Weight (kg)
Cooling method
40P2
40P4
40P7
41P5
3-phase 380 to 460 V AC at 50/60 Hz
42P2
44P0
–15% to 10%
±5%
1.3
1.9
23.1
30.1
1.0
1.1
Natural cooling
3.6
5.1
5.9
54.9
1.5
75.7
83.0
1.5
1.5
Cooling fan
9.1
117.9
2.1
133
Inverter Specifications
Chapter 9-1
Max. applicable motor capacity (kW)
Rated output capacity (kVA)
Output
specifiRated output current (A)
cations
Rated output voltage (V)
Max. output frequency
Harmonic-current
Control
countermeasures
characteristics
Control method
Carrier frequency
Frequency control range
Frequency precision
(temperature characteristics)
Frequency setting resolution
Output frequency resolution
Overload capacity
External frequency set signal
Acceleration/deceleration time
Braking torque
Voltage/frequency
characteristics
Protective
functions
Motor protection
Instantaneous overcurrent
protection
Overload protection
Overvoltage protection
Undervoltage protection
Momentary power interruption
compensation (selection)
0.2
0.4
0.75
1.5
2.2
0.9
1.4
2.6
3.7
4.2
1.2
1.8
3.4
4.8
5.5
3-phase 380 to 460 V AC (according to the input voltage)
400 Hz parameter setting
DC reactor (option) connection possible
3.7
6.6
8.6
Sine wave PWM (V/f control)
2.5 to 10.0 kHz (in vector control)
0.1 to 400 Hz
Digital commands: ±0.01% (–10°C to 50°C)
Analog commands: ±0.5% (25°C ±10°C)
Digital commands: 0.1 Hz (less than 100 Hz) and 1 Hz (100 Hz or over)
Analog commands: 0.06 Hz/60 Hz (equivalent to 1/1000)
0.01 Hz
150% of rated output current for 1 min
Selectable with FREQ adjuster: 0 to 10 V DC (20 kW),
4 to 20 mA (250 W), and 0 to 20 mA (250 W)
0.0 to 999 s (Independent acceleration and deceleration time settings:
2 types)
Approx. 20% (Braking Resistor and Braking Unit cannot be connected.)
Set a user V/f pattern
Protection by electronic thermal
Stops at approx. 250% of rated output current
Stops in 1 min at approximately 150% of rated output current
Stops when main-circuit DC voltage is approximately 820 V
Stops when main-circuit DC voltage is approximately 400 V
Stops for 15 ms or more. By setting the Inverter to momentary power
interruption mode, operation can be continued if power is restored
within approximately 0.5 s.
Cooling fin overheating
Detects at 110°C ±10°C
Grounding protection
Protection at rated output current level
Charge indicator (RUN indicator) Lit when the main circuit DC voltage is approximately 50 V or less.
Environment
Location
Ambient temperature
Ambient humidity
Ambient temperature
Altitude
Insulation resistance
Vibration resistance
Degree of protection
Indoors (with no corrosive gas, oil spray, or metallic dust)
Operating: –10°C to 50°C
Operating: 95% max. (with no condensation)
–20°C to 60°C
1,000 m max.
5 MWmin. (Do not carry out any insulation resistance or withstand
voltage tests)
9.8 m/s2max. between 10 to 20 Hz 2.0 m/s2max. between 20 and
50 Hz
Panel-mounting models: Conforms to IP20
1. The power supply capacity is the capacity for the Inverter’s rated output. It
will vary depending on the impedance at the input power supply. (This is
due to fluctuations in the power factor. The power factor can be improved
by inserting an AC reactor.) There will also be variations in the ratio
between the rated current of the motor that is used and the rated output
current of the Inverter.
2. The heat radiation is the electric power consumed in the Inverter at the
Inverter’s rated output.
134
Specifications of Accessories
9-2
9-2-1
Chapter 9-2
Specifications of Accessories
List of Accessories
Mounting Accessories
Name
Adapter Panel
(for J7AZ Series)
Model
SI232J/J7 & SI232J/J7C
RS-422/485 Communications
Unit
SI485/J7
Fan Unit
FAN00106_
Description
Interface required to connect a Digital Operator to a
J7AZ Inverter. There are two types of Adapter Panels
available: a fixed type (SI232J/J7) and a detach-able
type (SI232J/J7C). Use the detachable type for copying
parameters.
Interface required to perform RS-422/485 generalpurpose communications. The communications protocol
conforms to MODBUS (same protocol as V7AZ and F7Z
Inverters).
Replacement for the existing cooling fan of the Inverter.
Replace the cooling fan if it has reached the end of its
service life or a warning of cooling fan failure (FAN) is
indicated.
Dedicated Accessories
Name
Model
Digital Operator (with adjuster) JVOP-140
Digital Operator
(without adjuster)
JVOP-146
Digital Operator Case
(for 3G3IV-PJVOP140)
3G3IV-PEZZ08386A
Digital Operator Connection
Cable
3G3IV-PCN126/326
DIN Track Mounting
Bracket
3G3IV-PEZZ08122_
Description
Operator used to perform operations for J7AZ and V7AZ
Inverters. It is identical to the Digital Operator attached
to standard V7AZ Inverters, and has a built-in EEPROM
in which the Inverter’s parameter settings can be stored.
If the Digital Operator Case (3G3IV-PEZZ08386A) is
used, the Inverter can be mounted in a control panel, or
operated by remote control.
Operator used to perform operations for J7AZ and V7AZ
Inverters by remote control. It has a built-in EEPROM in
which the Inverter’s parameter settings can be stored.
Case for JVOP-140 Digital Operator. Mounting a JVOP140 in the Case allows the Inverter to mounted in a
control panel, or operated by remote control.
Required when using a Digital Operator with J7AZ
Inverters. Cable length: 1 m, 3 m.
An adapter making it possible to easily mount the
Inverter to DIN tracks.
Recommendable Separate Accessories
Name
EMC-conforming Input Noise
Filter
Model
3G3JV-PFI_
Description
A Noise Filter on the input side meeting the EC Directive’s
EMC requirements. The top of the Noise Filter has
mounting screw holes with which the Inverter mounted to
the Noise Filter can be secured.
135
Specifications of Accessories
9-2-2
Chapter 9-2
Adapter Panel
SI232/J7_
An Adapter Panel is required as an interface to connect a Digital Operator
(JVOP-140 or JVOP-146) to the J7AZ Inverter.
There are two models of Adapter Panel available. The SI232/J7 is permanently installed and cannot be removed and the SI232/J7C for copying parameters is installed so that it can be removed.
Connections
J7AZ
Inverter
Adapter Panel
SI232/J7 (permanent)
SI232/J7C (removeable)
Digital Operator Connection
Cable
3G3IV-PCN126 (1 m)
3G3IV-PCN326 (3 m)
Dimensions (mm)
SI232/J7 (Permanent)
SI232/J7C (Removeable)
136
Digital Operator
JVOP-146
JVOP-140 + 3G3IV
PEZZ08386A (Digital Operator Case)
Specifications of Accessories
9-2-3
Chapter 9-2
RS-422/485 Communications Unit
SI485/J7
The RS-422/485 Communications Unit (SI485/J7) functions as an interface
for RS-422/485 general-purpose communications. The communications protocol conforms to MODBUS (same protocol as V7AZ and F7 Inverters). Communications can be used for Inverter control inputs, frequency references,
monitoring Inverter operating status, and reading/writing parameter settings.
Note
Refer to CHAPTER 7 Communications for details.
Dimensions (mm)
9-2-4
Fan Unit
FAN00106_
The Fan Unit is a replacement for the presently installed cooling fan of the
Inverter.
Replace the cooling fan if it has reached the end of its service life or a warning
of cooling fan failure (FAN) is indicated.
Applicable Models
Inverter
Fan Unit
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
CIMR-J7AZ21P5/-22P2
CIMR-J7AZ24P0
CIMR-J7AZB1P5
CIMR-J7AZ41P5/-42P2
CIMR-J7AZ44P0
FAN001062
FAN001063
FAN001062
FAN001062
FAN001062
Replacement Method
Refer to 8-3 Maintenance and Inspection.
137
Specifications of Accessories
9-2-5
Chapter 9-2
Digital Operator
JVOP-140/JVOP-146
The Digital Operator (JVOP-140/JVOP-146) is used to control the Inverter
from a distance. There are two models available. The JVOP-140 is equipped
with an adjuster and the JVOP-146 is not.
Always use the JVOP140 together with a Digital Operator Case (3G3IVPEZZ08386A). Without the Case, the Digital Operator’s connection cable
cannot be wired. Using the Case also enables mounting to a control panel.
Note
When a Digital Operator is connected, the Operator on the Inverter cannot be
used to control operation (i.e., only display functions will work).
Dimensions (mm)
JVOP-140
(with Adjuster)
8 max.
3.6 dia
JVOP-146
(without Adjuster)
Four, 4.4-dia. mounting holes
Four depressions for
M4 bolts (Depth: 3.5)
138
Specifications of Accessories
9-2-6
Chapter 9-2
Digital Operator Case
3G3IV-PEZZ08386A
The Digital Operator Case (3G3IV-PEZZ08386A) is used to secure the JVOP140 Digital Operator. Without this Case, the Digital Operator’s connection
cable cannot be wired. Always use the JVOP-140 and the Digital Operator
Case together.
Dimensions (mm)
Four, 4.4-dia. mounting holes
Four depressions for
M4 bolts (Depth: 3.5)
9-2-7
Digital Operator Connection Cable
3G3IV-PCN126/PCN326
The Digital Operator Connection Cable (3G3IV-PCN126/PCN326) is required
to connect a Digital Operator to a J7AZ Inverter.
Models and Specifications
Digital Operator Connection Cable
3G3IV-PCN126
3G3IV-PCN326
9-2-8
Cable length
1m
3m
DC Reactor
The DC Reactor suppresses harmonic current generated from the Inverter
and improves the power factor of the Inverter. The DC Reactor suppresses
harmonic current more effectively than the AC Reactor. Furthermore, the DC
Reactor can be used in combination with the AC Reactor.
Applicable Model
Inverter
Voltage
class
200 V
400 V
Max.
applicable motor
capacity (kW)
0.1 to 0.75
1.5 to 4.0
0.2 to 0.75
1.5 to 2.2
4.0
DC Reactor
Rated current
Inductance
(A)
(mH)
5.4
18
3.2
5.7
12
8
3
28
11
6.3
139
Specifications of Accessories
9-2-9
Chapter 9-2
DIN Track Mounting Bracket
3G3IV-PEZZ08122_
An adapter making it possible to easily mount the Inverter to DIN tracks.
Applicable Model
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
Inverter
CIMR-J7AZ20P1/-20P2/-20P4/-20P7
CIMR-J7AZ21P5/-22P2
CIMR-J7AZ24P0
CIMR-J7AZB0P1/-B0P2/-B0P4
CIMR-J7AZB0P7/-B1P5
A4004/-A4007/-A4015/-A4022
CIMR-J7AZ44P0
DIN Track Mounting Bracket
3G3IV-PEZZ08122A
3G3IV-PEZZ08122B
3G3IV-PEZZ08122C
3G3IV-PEZZ08122A
3G3IV-PEZZ08122B
3G3IV-PEZZ08122B
3G3IV-PEZZ08122C
External Dimensions (mm)
3G3IV-PEZZ08122A
(35.1)
DIN track
(35.1)
DIN track
3G3IV-PEZZ08122B
Four, M4 tap
Four, M4 tap
3G3IV-PEZZ08122C
6
(35.1)
DIN track
1.6
Four, M4 tap
140
Specifications of Accessories
Chapter 9-2
9-2-10 AC Reactor
The AC Reactor suppresses harmonic current generated from the Inverter
and improves the power factor of the Inverter. Connect the AC Reactor to the
Inverter if the capacity of the power supply is much larger than that of the
Inverter. Select the AC Reactor model from the following table according to
the motor capacity.
Connection Example
MCCB AC Reactor
Motor
Applicable Range
AC Reactor required
for smooth operation
under present power
supply conditions
Power supply
capacity (kVA)
AC Reactor
not required
Inverter capacity (kVA)
Applicable Models and Dimensions
200-V Class
Max. applicable motor capacity
(kW)
0.1 to 0.2
0.4
0.75
1.5
2.2
4.0
Current (A)
2
2.5
5
10
15
20
Inductance (mH)
7.0
4.2
2.1
1.1
0.71
0.53
400-V Class
Max. applicable
motor capacity (kW)
0.2 to 0.4
0.75
1.5
2.2
4.0
Current (A)
1.3
2.5
5
7.5
10
Inductance (mH)
18.0
8.4
4.2
3.6
2.2
141
Option Specifications
9-3
Chapter 9-3
Option Specifications
9-3-1
EMC-compatible Noise Filter
• Be sure to select an optimum Noise Filter from the following so that the
Inverter will satisfy EMC directive requirements of the EC Directives.
• Connect the Noise Filter between the power supply and the input
terminals (R/L1, S/L2, and T/L3) of the Inverter.
• The Inverter can be mounted to the upper side of the Noise Filter because
the upper side of the Noise Filter incorporates mounting holes for the
Inverter.
Standard Specifications
Noise Filters for 3-phase
200 V AC Inverter Models
Inverter
Model CIMR-J7AZ20P1/20P2/20P4/20P7
21P5/22P2
24P0
Noise Filter for 3-phase 200 V AC Inverter models
Schaffner
Rasmi
Rated current (A)
Weight (kg)
3G3JV-PFI2010-SE 3G3JV-PFI2010-E
10
0.68
3G3JV-PFI2020-SE 3G3JV-PFI2020-E
16
0.84
--3G3JV-PFI2030-E
26
1.0
Noise Filters for Singlephase 200 V AC Inverter
Models
Inverter
Model CIMR-J7AZB0P1/B0P2/B0P4
B0P7/B1P5
Noise Filter for single-phase 200 V AC Inverter models
Schaffner
Rasmi
Rated current (A)
Weight (kg)
3G3JV-PFI1010-SE 3G3JV-PFI1010-E
10
0.45
3G3JV-PFI1020-SE 3G3JV-PFI1020-E
20
0.68
Nois Filters for 3-phase
400 V AC Inverter Models
Inverter
Model CIMR-J7AZ-
Noise Filter for 3-phase 200 V AC Inverter models
Rasmi
Rated current (A)
Weight (kg)
Schaffner
Rasmi
3G3JV-PFI3005-SE 3G3JV-PFI3005-E
5
0.57
3G3JV-PFI3010-SE 3G3JV-PFI3010-E
10
0.67
3G3JV-PFI3020-SE 3G3JV-PFI3020-E
20
15
1.0
Schaffner
A4002/A4004
A4007/A4015/A4022
A4037
Connection Example
MCCBs
3-phase 200 V AC or
single-phase 200 V AC
3-phase 400 V AC
142
Noise Filter
Clamp core
Option Specifications
Chapter 9-3
External Dimensions
Filters
Schaffner model
3 x 200 V 3G3JV-PFI2010-SE
3G3JV-PFI2020-SE
1 x 200 V 3G3JV-PFI1010-SE
3G3JV-PFI1020-SE
3 x 400 V 3G3JV-PFI3005-SE
3G3JV-PFI3010-SE
3G3JV-PFI3020-SE
A
194
169
169
169
169
169
174
B
82
111
71
111
111
111
144
C
50
50
45
50
50
50
50
D
160
135
135
135
135
135
135
E
181
156
156
156
156
61
61
Dimensions
F
G
62
5.3
91
5.5
51
5.3
91
5.3
91
5.3
120 5
120 5
H
M5
M5
M5
M5
M5
M5
M5
I
25
25
22
25
22
28
28
J
56
96
56
96
96
128
128
K
118
118
118
118
118
118
118
L
M14
M4
M4
M4
M4
M4
M4
Drive mounts
Output
flexes
Rasmi model
W
3 x 200 V 3G3JV-PFI2010-E
3G3-JV-PF2020-E
3G3JV-PFI2030-E
1 x 200 V 3G3-JV-PFI1010-E
3G3-JVPFI1020-E
3 x 400 V 3G3JV-PFI3005-E
3G3JV-PFI3010-E
3G3JV-PFI3020-E
82
111
144
71
111
111
111
144
H
50
50
50
45
50
50
50
50
L
194
169
174
169
169
169
169
174
Dimensions
X
181
156
161
156
156
156
156
161
Y
62
91
120
51
91
91
91
120
Inverter fixing
M5
M5
M5
M5
M5
M5
M5
M5
143
Option Specifications
144
Chapter 9-3
CHAPTER 10
List of Parameters
List of Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
146
145
List of Parameters
Chapter 10
List of Parameters
ParaName
meter No.
(Register
No. (Hex))
n01
Parameter
(0101)
writeprohibit
selection/
parameter
initialization
n02
(0102)
Operation
command
selection
n03
(0103)
Frequency
reference
selection
n04
(0104)
Interrup-tion
mode
selection
n05
(0105)
Reverse
rotationprohibit
selection
n06
(0106)
STOP/
RE-SET Key
function
selection
146
Description
Setting Unit of Default Changes Reference
range setting setting
during
operation page
Used to prohibit parameters to be written,
0, 1, 6,
sets parameters, or change the monitor
8, 9
range of parameters.
Used to initialize parameters to default
values.
0: Sets or monitors parameter n01.
Parameters n02 through n79 can be
monitored only.
1: Sets or monitors parameters n01
through n79.
6: Clears the error log.
8: Initializes parameters to default
values in 2-wire sequence.
9: Initializes parameters to default
values in 3-wire sequence.
Used to select the input method for the RUN 0 to 2
and STOP commands in remote mode.
0: The RUN and STOP/RESET Keys on
the Digital Operator are enabled.
1: Multi-function inputs through the
control circuit terminals in 2- or 3-wire
sequence.
2: Operation commands via RS-422A/
485 communications are enabled.
Note The RUN command only through key
sequences on the Digital Operator is
acceptable in local mode.
1
1
No
5-2
1
0
No
5-7
0 to 4,
6
1
0
No
5-8
0, 1
1
0
No
5-16
Used to select the operation with the reverse 0, 1
command input.
0: Reverse enabled.
1: Reverse disabled.
Used to select the stop method in remote
0, 1
mode with n02 for operation mode selection
set to 1.
0: STOP/RESET Key of the Digital
Operator enabled.
1: STOP/RESET Key of the Digital
Operator disabled.
1
0
No
5-15
1
0
No
5-7
Used to set the input method for the
frequency reference in remote mode.
0: Digital Operator
1: Frequency reference 1 (n21)
2: Frequency reference control circuit
terminal (0 to 10 V)
3: Frequency reference control circuit
terminal (4 to 20 mA)
4: Frequency reference control circuit
terminal (0 to 20 mA)
6: Frequency reference via RS-422A/
485 communications
Used to set the stopping method for use
when the STOP command is input.
0: Decelerates to stop in preset time.
1: Coasts to stop (with output shut off by
the STOP command)
List of Parameters
Parameter No.
(Register
No. (Hex))
n07
(0107)
n08
(0108)
n09
(0109)
Chapter 10
Name
Description
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
Frequency
selection in
local mode
Used to set the input method for the
frequency reference in local mode.
0: The FREQ adjuster of the Digital
Operator enabled.
1: Key sequences on the Digital
Operator enabled.
Key sequential Used to enable the Enter Key for setting the
frequency reference with the Increment and
frequency
Decrement Keys.
setting
0: The value is entered with the Enter
Key pressed.
1: The value is enabled when the value
is input.
Used to set the V/f pattern as the basic
Maximum
characteristic of the Inverter with output
frequency
voltage per frequency set.
(FMAX)
0, 1
1
0
No
5-8
0, 1
1
0
No
5-12
50.0 to
400
0.1 Hz 60.0
(see
note 1)
No
5-4
200
No
(see
note 2)
5-4
Output
voltage
n10
(010A)
Maximum
voltage
(VMAX)
n11
(010B)
Maximum
voltage
frequency (FA)
n12
(010C)
1 to
1V
255
(see
note 2)
Frequency
(Hz)
0.2 to
400
Note Set the parameters so that the
following condition will be satisfied.
n14 O 012 < n11 O n09
Middle output
0.1 to
Note
The
value set in n13 will be ignored if 399
frequency (FB)
parameters n14 and n12 are the
same in value.
0.1 Hz 60.0
(see
note 1)
No
5-4
0.1 Hz 1.5
(see
note 1)
No
5-4
n13
(010D)
Middle output
frequency
voltage (VC)
1 to
1V
255
(see
note 2)
12 (see No
note 2)
5-4
n14
(010E)
Minimum
output
frequency
(FMIN)
0.1 to
10.0
1.5
No
5-4
n15
(010F)
Minimum
output
frequency
voltage
(VMIN)
1 to 50 1 V
(see
note 2)
No
12.0
(see
note 2)
5-4
n16
(0110)
Accelera-tion
time 1
10.0
Yes
5-13
n17
(0111)
Decelera-tion
time 1
10.0
Yes
5-13
n18
(0112)
Accelera-tion
time 2
10.0
Yes
5-13
n19
(0113)
Decelera-tion
time 2
10.0
Yes
5-13
Acceleration time: The time required
0.0 to
to go from 0% to 100% of the maximum
999
frequency.
Deceleration time: The time required
to go from 100% to 0% of the maximum
frequency.
Note 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)
0.1 Hz
0.1 s
147
List of Parameters
Parameter No.
(Register
No. (Hex))
Chapter 10
Name
Description
n20
(0114)
S-shape
accelera-tion/
decel-eration
character-istic
n21
(0115)
n22
(0116)
n23
(0117)
n24
(0118)
n25
(0119)
n26
(011A)
n27
(011B)
n28
(011C)
n29
(011D)
Frequency
reference 1
Frequency
reference 2
Frequency
reference 3
Frequency
reference 4
Frequency
reference 5
Frequency
reference 6
Frequency
reference 7
Frequency
reference 8
Inching
frequency
command
Used to set S-shape acceleration/
deceleration characteristics.
0: No S-shape acceleration/deceleration
(trapezoidal acceleration/deceleration)
1: S-shape acceleration/deceleration
characteristic time 0.2 s
2: S-shape acceleration/deceleration
characteristic time 0.5 s
3: S-shape acceleration/deceleration
characteristic time 1.0 s
Note When the S-shape acceleration/
deceleration characteristic time is set,
the acceleration and deceleration
times will be lengthened according to
the S-shape at the beginning and end
of acceleration/deceleration.
Used to set internal frequency references
Note Frequency reference 1 is enabled in
remote mode with n03 for frequency
reference selection set to 1.
Note These frequency references are
selected with multi-step speed
references (multi-function input). See
the reference pages for the
relationship between multi-step speed
references and frequency references.
n30
(011E)
Frequency
reference
upper limit
n31
(011F)
Frequency
reference
lower limit
n32
(0120)
Rated motor
current
148
Used to set the inching frequency
command.
Note The inching frequency command is
selected with the inching command
(multi-function input). The inching
frequency command takes
precedence over the multi-step speed
reference.
Used to set the upper and lower frequency
reference limits in percentage based on the
maximum frequency as 100%.
Note If n31 is set to a value less than the
minimum output frequency (n14), the
Inverter will have no output when a
frequency reference less than the
minimum output frequency input is
input.
Used to set the rated motor current for motor
overload detection (OL1) based on the rated
motor current.
Note Motor overload detection (OL1) is
disabled by setting the parameter to
0.0.
Note The rated motor current is default to
the standard rated current of the
maximum applicable motor.
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
0 to 3
1
0
No
5-14
0.1 Hz 6.0
0.0 to
max.
(see
frenote 1) 0.0
quency
Yes
5-10
Yes
5-10
0.0
Yes
5-10
0.0
Yes
5-10
0.0
Yes
5-10
0.0
Yes
5-10
0.0
Yes
5-10
0.0
Yes
5-11
6.0
Yes
5-11
0 to
110
1%
100
No
5-9
0 to
110
1%
0
No
5-9
Varies
with
the
capacity.
No
5-2
0.1 A
0.0 to
120%
of rated
output
current
of the
Inverter
.
List of Parameters
Parameter No.
(Register
No. (Hex))
n33
(0121)
n34
(0122)
n35
(0123)
n36
(0124)
n37
(0125)
n38
(0126)
Name
Motor
protection
characteristics
Chapter 10
Description
Used to set the motor overload detection
(OL1) for the electronic thermal
characteristics of the motor.
0: Protection characteristics for generalpurpose induction motors
1: Protection characteristics for inverterdedicated motors
2: No protection
Note If a single Inverter is connected to
more than one motor, set the parameter to 2 for no protection. The
parameter is also disabled by setting
n32 for rated motor to 0.0.
Motor
Used to set the electric thermal
protective time characteristics of the motor to be connected
setting
in 1-minute increments.
Note The default setting does not require
any changes in normal operation.
Note To set the parameter according to the
characteristics of the motor, check
with the motor manufacturer the
thermal time constant and set the
parameter with some margin. In other
words, set the value slightly shorter
than the thermal time constant.
Note To detect motor overloading quicker,
reduce the set value, provided that it
does not cause any application
problems.
Cooling fan
Used to operate the Cooling Fan of the
operation
Inverter while the Inverter is turned on or
function
only while the Inverter is in operation.
0: Rotates only while RUN command is input
and for 1 minute after Inverter stops
operating
1: Rotates while Inverter is turned on
Note This parameter is available only if the
Inverter incorporates a Cooling Fan.
Note If the operation frequency of the
Inverter is low, the life of the fan can
be prolonged by setting the parameter
to 0.
Multi-function Used to select the function of multi-function
input 1 (Input input terminals S2 through S5.
terminal S2)
Set
Function
Description
value
Multi-function 0
Forward/
3-wire sequence
input 2 (input
Reverse
(to be set in n37 only)
terminal S3)
rotation
By setting n37 to 0,
command
the set value in n36 is
Multi-function
ignored and the
input 3 (Input
following setting are
terminal S4)
forcibly made.
S1: RUN input
(RUN when ON)
S2: STOP input
(STOP whenn OFF)
S3: Forward/Reverse
rotation command
(OFF: Forward;
ON: Reverse)
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
0 to 2
1
0
No
6-14
1 to 60
1 min
8
No
6-14
0, 1
1
0
No.
6-14
2 to 8,
10 to
22
1
2
No
5-17
0, 2 to 1
8, 10 to
22
5
No
5-17
2 to 8,
10 to
22
3
No
5-17
1
149
List of Parameters
Parameter No.
(Register
No. (Hex))
n39
(0127)
Chapter 10
Name
Multi-function
input 4 (Input
terminal S5)
Description
2
Reverse/
Stop
3
External
fault (NO)
4
External
fault (NC)
5
Fault reset
6
Multi-step
speed
reference 1
Multi-step
speed
reference 2
Multi-step
speed
reference 3
7
8
10
Inching
frequency
command
11
Acceleration/Decelerlation time
changeover
External
base block
command
(NO)
External
base block
bommand
(NC)
Search
command
(Searching
starts from
maximum
frequency)
Search
command
(Searching
starts from
preset
frequency)
ON: Acceleration time
2 and deceleration
time 2 are selected.
16
Acceleration/Deceleration prohibit
command
17
Local or
remote
selection
ON: Acceleration/
Deceleration is on
hold (running at
parameter frequency)
ON: Local mode
(operated with the
Digital Operator)
12
13
14
15
150
Reverse rotation
command in 2-wire
sequence
(Reversed with the
terminal turned ON)
ON: External fault
(FP_ detection: _ is a
terminal number)
OFF: External fault
(EF_ detection: _ is a
terminal number)
ON: Fault reset
(disabled while RUN
command is input)
Signals to select
freqency references 1
through 8.
Refer to 5-5-4 Setting
Frequency
References through
Key Sequences for
the relationship
between multi-step
speed references and
frequency references.
ON: Inching
frequency command
(taking precedence
over the multi-step
speed reference)
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
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
2 to 8,
10 to
22, 34,
35
1
6
No
5-17
List of Parameters
Parameter No.
(Register
No. (Hex))
n39
(0127)
Chapter 10
Name
Multi-function
input 4 (input
terminal S5)
Description
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
35
Selfdiagnostic
test
ON: RS-422A/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.
NO. Emergency stop
with the contact
closed.
NC: Emergency stop
with the contact
opened.
Fault: Fault output is
ON and reset with
RESET input. Alarm
output is ON (no reset
required).
“STP“ is displayed (lit
with fault input ON
and flashed with
alarm input ON)
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
2 to 8,
10 to
22, 34,
35
1
6
No
5-17
Up or down command
(set in n39 only)
By setting n39 to 34,
the set value in n38 is
ignored and the
following setting are
forcibly mde.
S4: Up command
S5: Down command
ON: RS-422A/485
communications selfdiagnostic test (set in
n39 only)
151
List of Parameters
Parameter No.
(Register
No. (Hex))
n40
(0128)
Chapter 10
Name
Description
Multi-function Used to select the functions of multi-function 0 to 7,
output terminals.
10 to
output
17
(MA/MB
Set
Function
Description
and MC output value
terminals)
0
Fault output ON: Fault output
(with protective
function working)
1
Operation in ON: Operation in
progress
progress
2
Frequency
ON: Frequency
detection ´
detection (with
frequency reference
coinciding with output
frequency)
3
Idling
ON: Idling (at less
than min. output
frequency)
4
Frequency
ON: Output frequency
detection 1
P frequency detection
level (n58)
5
Frequency
detection 2
6
Overtorque
being
monitored
(NO-contact
output)
7
Overture
being
monitored
(NC-contact
output)
8
9
10
Not used
11
12
13
14
15
152
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
ON: Output frequency
O frequency detection
level (n58)
Output if any of the
following parameter
conditions is satisfied.
n59: Overtorque
detection function
selection
n60: Overtorque
detection level
n61: Overtorque
detection time
NO contact: ON
with overtorque being
detected
NC contact: OFF
with overtorque being
detected
---
Alarm output ON: Alarm being
detected
(Nonfatal error being
detected)
Base block
Base block in
in progress progress (in operation
with output shut-off)
RUN mode
ON: Local mode (with
the Digital Operator)
Inverter
ON: Inverter ready to
ready
operate (with no fault
detected)
Fault retry
ON: Fault retry
UV in
ON: Undervoltage
progress
being monitored
1
1
No
5-20
List of Parameters
Parameter No.
(Register
No. (Hex))
n40
(0128)
n41
(0129)
n42
(012A)
n43
(012B)
Chapter 10
Name
Description
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
Multi-function 16
output
(MA/MB
and MC output 17
terminals)
Rotating in
ON: Rotating in
reverse
reverse direction
direction
ON: Speed search in
Speed
progress
search in
progress
Frequency
Used to the input characteristics of analog
reference gain frequency references.
Gain: The frequency of maximum analog
input (10 V or 20 mA) in percentage based
Frequency
reference bias on the maximum frequency as 100%.
Bias: The frequency of minimum analog
input (0 V or 4 mA) in percentage based on
Analog
the maximum frequency as 100%.
frequency
reference time
0 to 7,
10 to
17
1
1
No
5-20
0 to
255
1%
100
Yes
5-9
–99 to
99
1%
0
Yes
5-9
0.00 to
2.00
0.01 s
0.10
No
5-10
n44
(012C)
Analog
Used to set the output frequency or current
monitor output as a monitored item.
0: Output frequency (10-V output at max.
frequency with n45 set to 1.00).
1: Output current (10-V output with Inverter
rated output current with n45 set to 1.00)
0, 1
1
0
No
5-22
n45
(012D)
Analog
Used to set the output characteristics of
monitor output analog monitor output.
gain
0.00 to
2.00
0.01
1.00
Yes
5-22
n46
(012E)
Carrier
frequency
selection
Used to set the carrier frequency.
Note The default setting does not need and
changes in normal operation.
Note Refer to 6-1 Setting the Carrier
Frequency for details.
1 to 4,
7 to 9
1
Varies No
with
the
capacit
y
6-2
n47
(012F)
Momentary
power
interruption
compensation
Used to specify the processing that is
performed when a momentary power
interruption occurs.
0: Inverter stops operating
1: Inverter continues operating if power
interruption is 0.5 s or less.
2: Inverter restarts when power is restored.
0 to 2
1
0
No
6-15
n48
(0130)
Fault retry
Used to set the number of times the Inverter 0 to 10
is reset and restarted automatically in the
case the Inverter has an overvoltage fault,
overcurrent fault, or ground fault.
1
0
No
6-15
n49
(0131)
Jump
frequency 1
Used to set the frequency jump function.
0.0 to
400
0.1 Hz 0.0
(see
note 1)
No
6-16
0.0 to
400
0.1 Hz 0.0
(see
note 1)
No
6-16
0.0 to
25.5
0.1 Hz
No
6-16
Output
frequency
N50
(0132)
Jump
frequency 2
n51
(0133)
Jump width
n51
Frequency
reference
n50
n49
0.0
Note These values must satisfy the
following condition: n49 P n50
153
List of Parameters
Parameter No.
(Register
No. (Hex))
Name
n52
(0134)
DC control
current
n53
(0135)
Interruption
DC control
time
n54
(0136)
Chapter 10
Startup DC
control time
Description
Used to impose DC on the induction motor 0 to
100
for braking control.
Set the DC braking current in percentage
based on the rated current of the Inverter as
0.0 to
100%.
25.5
n56
(0138)
n57
(0139)
n58
(013A)
n59
(013B)
060
(013C)
061
(013D)
154
Stall
prevention
during
deceleration
1%
50
No
6-5
0.1 s
0.5
No
6-5
0.0 to
25.5
0.1 s
0.0
No
6-5
0, 1
1
0
No
6-6
30 to
200
1%
170
No
6-7
30 to
200
1%
160
No
6-8
0.0 to
400
0.1 Hz
0.0
No
6-18
0 to 4
1
0
No
6-9
30 to
200
1%
160
No
6-9
0.1 to
10.0
0.1 s
0.1
No
6-10
Output
frequency
Minimum
output
frequency
(n14)
Time
n54
n55
(0137)
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
n53
Used to select a function to change the
deceleration time of the motor automatically
so that there will be no overvoltage imposed
on the motor during deceleration.
0: Stall prevention during deceleration
enabled
1: Stall prevention during deceleration
disabled
Used to select a function to stop the
Stall
prevention
acceleration of the motor automatically for
stall prevention during acceleration.
level during
acceleration
Set the level in percentage based on the
rated current of the Inverter as 100%.
Stall
Used to select a function to reduce the
prevention
output frequency of the Inverter
leven during
automatically for stall prevention during
operation
operation.
Set the level in percentage based on the
rated current of the Inverter as 100%.
Frequency
Used to set the frequency to be detected.
detection level Note The parameter n40 for multi-function
output must be set for the output of
frequency detection levels 1 and 2.
Overtorque
Used to enable or disable overtorque
detection
detection and select the processing method
function
after overtorque detection.
selection
0: Overtorque detection disabled
1: Overtorque detection only when
speed coincides and operation continues
(issues alarm)
2: Overtorque detection only when
speed coincides and output shut off
(for protection)
3: Overtorque always detected and
operation continues (issues alarm)
4: Overtorque always detected and
output shut off (for protection)
Overtorque
Used to set overtorque detection level.
detection level Set the level in percentage based on the
rated current of the Inverter as 100%.
Overtorque
Used to set the detection time of overtorque
detection time
List of Parameters
ParaName
meter No.
(Register
No. (Hex))
062
UP/DOWN
(013E)
command
frequency
memory
n63
(013F)
Torque
compensation
gain
n64
(0140)
Motor rated
slip
n65
(0141)
Motor no-load
current
n66
(0142)
Slip
compensation
gain
n67
(0143)
Slip
compensation
time constant
n68
(0141)
(See note
3.)
RS-422A/485
communications timeover
detection
selection
Chapter 10
Description
Used to store the adjusted frequency
reference with the UP/DOWN function.
0: Frequency not stored
1: Frequency stored
The frequency must be on hold for 5 s
or more.
Used to store the adjusted frequency
reference with the UP/DOWN function.
0: Frequency not stored
1: Frequency store
The frequency must be on hold for 5 s
or more.
Used to store the adjusted frequency
reference with the UP/DOWN function.
0: Frequency not stored
1: Frequency stored
The frequency must be on hold for 5 s
or more.
Used to set the gain of the torque
compensation function.
The default setting does not need any
changes in normal operation.
Used to set the rated slip value of the motor
in use.
Note Used as the constant of the slip
compensation function.
Used to set the no-load current of the motor
in use based on the rated motor current as
100%.
Note Used as the constant of the slip
compensation function.
Used to set the gain of the slip
compensation function.
Note The slip compensation function is
disabled with n66 set to 0.0.
Used for the response speed of the slip
compensation function.
Note The default setting does not need any
changes in normal operation
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
0, 1
1
0
No
6-19
0.0 to
2.5
0.1
1.0
Yes
6-11
0.0 to
20.0
0.1 Hz
Varies
with
the
capacity.
Yes
6-12
0 to 99
1%
Varies
with
the
capacity.
No
6-12
0.0 to
2.5
0.1
0.0
Yes
6-12
0.0 to
25.5
0.1 s
2.0
No
6-12
1
0
No
7-5
Used to set whether a communications time- 0 to 4
over (CE) is detected if there is an interval of
more than 2 s, and to select the method of
processing the detected communications
time-over.
0: Detects a time-over and fatal error and
coasts to a stop.
1: Detects a time-over and fatal error
and decelerates to a stop in deceleration
time 1.
2: Detects a time-over and fatal error
and decelerates to a stop in deceleration
time 2.
3: Detects a time-over and nonfatal error
warning and continues operating.
4: No time-over is detected.
155
List of Parameters
Parameter No.
(Register
No. (Hex))
n69
(0145)
(See note
3.)
Name
RS-422A/485
communications
frequency
reference/
display unit
selection
Chapter 10
Description
Used to the set the unit of frequency
reference and frequency-related values
to be set or monitored through
communications.
0: 0.1 Hz 1: 0.01 Hz
2: Converted value based on 30,000
as max. frequency
3: 0.1% (Max. frequency: 100%)
Used to set the Slave address
(Slave unit number) for communications.
0:
Only receives broadcast
messages from the Master.
01 to 32: Slave address
Used to set the baud rate for
communications.
0: 2,400 bps
1: 4,800 bps
2: 9,600 bps
3: 19,200 bps
Used to set the parity for communications.
0: Even parity
1: Odd parity
2: No parity
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
0 to 3
1
0
No
7-5
00 to
32
1
00
No
7-6
0 to 3
1
2
No
7-6
0 to 2
1
0
No
7-7
n70
(0146)
(See note
3.)
RS-422A/485
communications Slave
address
n71
(0147)
(See note
3.)
RS-422A/485
baud rate
selection
n72
(0148)
(See note
3.)
RS-422A/485
parity
selection
n73
(0149)
(See note
3.)
n74
(014A)
(See note
3.)
n75
(014B)
RS-422A/485 Used to set the waiting period for returning a 10 to
send wait time response after the DSR (data-send-request) 65
mes-sage is received from the Master.
1 ms
10
No
7-7
RS-422A/485
RTS control
selection
Select whether or not to enable the RTS
(request-to-send) communications control
function.
1
0
No
7-7
Low-speed
carrier
frequency
reduction
selec-tion
1
0
No
6-4
n76
(014C)
(See note
3.)
Parameter
copy and
verify function
Used to select a function to reduce the
0.1
carrier frequency when Inverter is at low
speed.
0: Function disabled
1: Function enabled
Note Normally set n75 to 0.
Selects the function to read, copy, and verify rdy to
the parameter between the memory of the
Sno
Inverter and that of the Digital Operator.
rdy: Ready to accept the next command.
rED: Reads the Inverter parameter.
Cpy: Copies the parameter to the Inverter.
vFY: Verifies the Inverter parameter.
vA: Checks the Inverter capacity display.
Sno: Checks the software number.
---
rdy
No
---
n77
(014D)
(See note
3.)
Parameter
read prohibit
selection
Select the copy-prohibit function. Use this
parameter to protect the data in the
EEPROM of the Digital Operator.
0: Read prohibited for Inverter parameters.
(Data cannot be written to EEPROM.)
1: Read possible for Inverter parameters.
(Data can be written to EEPROM.)
1
0
No
---
156
0, 1
0, 1
List of Parameters
Parameter No.
(Register
No. (Hex))
n78
(014E)
Chapter 10
Name
Error log
Description
Used to display the latest error recorded.
Setting Unit of Default Changes Referrange setting setting
during
ence
operation page
---
---
---
---
6-21
---
---
---
---
Display
n79
(014F)
Software
number
Note „:___“ will be displayed if no error has
been recorded.
Note This parameter is monitored only.
Used to display the software number of the --Inverter for OMRON’s control reference use.
Note This parameter is monitored only.
Note
1. 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. With RS-422/485
communications, the unit is always 0.1 Hz.
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.
3. The n68, n74, n76, and n77 parameters cannot be written via RS422/485
communications. They are read-only.
157
List of Parameters
158
Chapter 10
CHAPTER 11
Using the Inverter for a Motor
Using the Inverter for a Motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
160
159
Using the Inverter for a Motor
Chapter 11
Using the Inverter for a Motor
Using Inverter for Existing Standard Motor
When a standard motor is operated with the Inverter, a power loss is lightly
higher than when operated with a commercial power supply.
In addition, cooling effects also decline the low-speed range, resulting in an
increase in the motor temperature. Therefore, motor torque should be
reduced in the low speed range.
The following figure shows allowable load characteristics of a standard motor.
If 100% torque is continuously required in the low-speed range, use a special
motor for use with Inverters.
Allowable Load Characteristics of Standard Motor
25% ED (or 15 min)
40% ED (or 20 min)
60% ED (or 40 min)
100
Torque (%)
80
70
60
50
Continuous
0 3 10 20
6
0
Frequency (Hz)
High-speed Operation
When using the motor at high-speed (60 Hz or more), problems may arise in
dynamic balance and bearing durability.
Torque Characteristics
The motor may require more acceleration torque when the motor is operated
with the Inverter than when operated with a commercial power supply. Check
the load torque characteristics of the machine to be used with the motor to set
a proper V/f pattern.
Vibration
The J7AZ Series employs high carrier PWM control to reduce motor vibration.
When the motor is operated with the Inverter, motor vibration is almost the
same as when operated with a commercial power supply.
Motor vibration may, however, become greater in the following cases.
• Resonance with the natural frequency of the mechanical system
Take special care when a machine that has been operated at a constant
speed is to be operated in variable speed mode.
If resonance occurs, install vibration-proof rubber on the motor base.
• Imbalance rotor
Take special care when the motor is operated at a high speed (60 Hz or
more).
Noise
160
Noise is almost the same as when the motor is operated with a commercial
power supply. Motor noise, however, becomes louder when the motor is
operated at a speed higher than the rated speed (60 Hz).
Using the Inverter for a Motor
Chapter 11
H Using Inverter for Special Motors
Pole-changing Motor
The rated input current of pole-changing motors differs from that of standard
motors. Select, therefore, an appropriate Inverter according to the maximum
input current of the motor to be used.
Before changing the number of poles, always make sure that the motor has
stopped.
Otherwise, the overvoltage protective or overcurrent protective mechanism
will be actuated, resulting in an error.
Submersible Motor
The rated input current of submersible motors is higher than that of standard
motors. Therefore, always select an Inverter by checking its rated output
current.
When the distance between the motor and Inverter is long, use a cable thick
enough to connect the motor and Inverter to prevent motor torque reduction.
Explosion-proof Motor
When an explosion-proof motor or increased safety-type motor is to be used,
it must be subject to an explosion-proof test in conjunction with the Inverter.
This is also applicable when an existing explosionproof motor is to be
operated with the Inverter.
Gearmotor
The speed range for continuous operation differs according to the lubrication
method and motor manufacturer. In particular, the continuous operation of an
oil-lubricated motor in the low speed range may result in burning. If the motor
is to be operated at a speed higher than 60 Hz, consult with the manufacturer.
Synchronous Motor
A synchronous motor is not suitable for Inverter control.
If a group of synchronous motors is individually turned on and off,
synchronism may be lost.
Single-phase Motor
Do not use the Inverter for a single-phase motor.
The motor should be replaced with a 3-phase motor.
Power Transmission Mechanism (Speed Reducers, Belts, and Chains)
If an oil-lubricated gear box or speed reducer is used in the power
transmission mechanism, oil lubrication will be affected when the motor
operates only in the low speed range. The power transmission mechanism will
make noise and experience problems with service life and durability if the
motor is operated at a speed higher than 60 Hz.
Motor Burnout Caused by Insufficient Dielectric Strength of Each Phase of Motor
Surge occurs among the phases of the motor when the output voltage is
switched.
If the dielectric strength of each phase of the motor is insufficient, the motor
may burn out.
The dielectric strength of each phase of the motor must be higher than the
maximum surge voltage. Normally, the maximum surge voltage is
approximately three times the power voltage imposed on the Inverter.
161
Using the Inverter for a Motor
Chapter 11
Revision History
A manual revision code appears as a suffix to the catalog number on the front
cover of the manual.
Cat. No. I63-EN-01
Revision code
The following table outlines the changes made to the manual during each
revision. Page numbers refer to the previous version.
Revision code
01
Date
February 2006
Revised content
Original production
Qnisz ING Krzysztof Kunisz
05-124 Janówek Pierwszy, ul. Nowodworska 96
tel./fax: +48 22 750 51 36, tel.kom: +48 508 100 781
adres e-mail : Qnisz@Qnisz.pl
www.qnisz.pl
162
Manual No.
I63-EN-01
Manual No. I63-EN-01
VS mini J7
USER’S MANUAL
OMRON YASKAWA MOTION CONTROL B.V. – Wegalaan 65 – 2132 JD Hoofddorp – The Netherlands
phone: + 31 (0) 23 568 74 00 – fax: + 31 (0) 23 568 74 88 – www.omronyaskawa.com
Note: Specifications subject to change without notice.
Manual No. I63-EN-01
VS mini J7
Compact General Purpose Inverter
USER’S Manual
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