Omron VS mini J7 User`s manual
Oglas
Oglas
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
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?
II
Notice
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DANGER
WARNING
Caution
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.
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Additionally, there may be severe property damage.
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Additionally, there may be severe property damage.
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
Note
The following headings appear in the left column of the manual to help you locate different types of information.
Indicates information of particular interest for efficient and convenient operation of the product.
III
General Precautions
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WARNING
WARNING
WARNING
WARNING
Caution
Caution
Caution
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Caution
!
Caution
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.
Do not touch the inside of the Inverter. Doing so may result in electrical shock.
Operation, maintenance, or inspection must be performed after turning OFF the power supply, confirming that the CHARGE indicator (or status indicators) are OFF, and after waiting for the time specified on the front cover. Not doing so may result in electrical shock.
Do not damage, pull on, apply stress to, place heavy objects on, or pinch the cables. Doing so may result in electrical shock.
Do not touch the rotating parts of the motor under operation. Doing so may result in injury.
Do not modify the product. Doing so may result in injury or damage to the product.
Do not store, install, or operate the product in the following places. Doing so may result in electrical shock, fire or damage to the product.
• 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.
Do not touch the Inverter radiator, regenerative resistor, or Servomotor while the power is being supplied or soon after the power is turned OFF. Doing so may result in a skin burn due to the hot surface.
Do not conduct a dielectric strength test on any part of the Inverter. Doing so may result in damage to the product or malfunction.
Take appropriate and sufficient countermeasures when installing systems in the following locations. Not doing so may result in equipment damage.
• 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
Caution
Do not pull on the cables. Doing so may result in damage to the product or malfunction.
Use the eye-bolts only for transporting the Inverter. Using them for transporting the machinery may result in injury or malfunction.
Installation Precautions
!
WARNING
!
WARNING
Provide an appropriate stopping device on the machine side to secure safety.
(A holding brake is not a stopping device for securing safety.) Not doing so may result in injury.
Provide an external emergency stopping device that allows an instantaneous stop of operation and power interruption. Not doing so may result in injury.
!
!
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Caution
Caution
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.
Do not allow foreign objects to enter inside the product. Doing so may result in fire or malfunction.
Do not apply any strong impact. Doing so may result in damage to the product or malfunction.
Wiring Precautions
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WARNING
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WARNING
WARNING
WARNING
Caution
Caution
Caution
Caution
Caution
Caution
Wiring must be performed only after confirming that the power supply has been turned OFF. Not doing so may result in electrical shock.
Wiring must be performed by authorized personnel. Not doing so may result in electrical shock or fire.
Be sure to confirm operation only after wiring the emergency stop circuit. Not doing so may result in injury.
Always connect the ground terminals to a ground of 100 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.
Install external breakers and take other safety measures against shortcircuiting in external wiring. Not doing so may result in fire.
Confirm that the rated input voltage of the Inverter is the same as the AC power supply voltage. An incorrect power supply may result in fire, injury, or malfunction.
Connect the Braking Resistor and Braking Resistor Unit as specified in the manual. Not doing so may result in fire.
Be sure to wire correctly and securely. Not doing so may result in injury or damage to the product.
Be sure to firmly tighten the screws on the terminal block. Not doing so may result in fire, injury, or damage to the product.
Do not connect an AC power to the U, V, or W output. Doing so may result in damage to the product or malfunction.
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.
Do not touch the inside of the Inverter. Doing so may result in electrical shock.
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WARNING
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WARNING
WARNING
WARNING
WARNING
Caution
Caution
Caution
Caution
Do not come close to the machine when using the error retry function because the machine may abruptly start when stopped by an alarm. Doing so may result in injury.
Do not come close to the machine immediately after resetting momentary power interruption to avoid an unexpected restart (if operation is set to be continued in the processing selection function after momentary power interruption is reset). Doing so may result in injury.
Provide a separate emergency stop switch because the STOP Key on the
Operator is valid only when function settings are performed. Not doing so may result in injury.
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.
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.
Provide a separate holding brake when necessary. Not doing so may result in injury.
Do not perform a signal check during operation. Doing so may result in injury or damage to the product.
Do not carelessly change settings. Doing so may result in injury or damage to the product.
VI
Maintenance and Inspection Precautions
Do not touch the Inverter terminals while the power is being supplied.
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WARNING
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WARNING
WARNING
WARNING
Caution
Caution
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.
Maintenance, inspection, or parts replacement must be performed by authorized personnel. Not doing so may result in electrical shock or injury.
Do not attempt to take the Unit apart or repair. Doing either of these may result in electrical shock or injury.
Carefully handle the Inverter because it uses semiconductor elements.
Careless handling may result in malfunction.
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
C I M R — J 7 A Z 2 0 P 1
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
point
Voltage
B: Single-phase 200 VAC
2: Three-phase 200 VAC
4: Three-phase 400 VAC
VIII
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 Contents
Chapter 1 Overview Describes features and nomenclature.
Chapter 2 Design
Chapter 3 Preparing for Operation and
Monitoring
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.
Chapter 4 Test Run
Chapter 5 Basic Operation
Chapter 6 Advanced Operation
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.
Chapter 7 Communications
Chapter 8 Maintenance Operations
Chapter 9 Specifications
Chapter 10 List of Parameters
Chapter 11 Using the Inverter for a
Motor
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 NON-
INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY
BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PROD-
UCTS 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
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preparing for Operation and Monitoring . . . . . . . . . . 33
Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Advanced Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
XIII
Table of Contents
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
List of Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Using the Inverter for a Motor. . . . . . . . . . . . . . . . . . 159
XIV
CHAPTER 1
Overview
1
Function
Chapter 1-1
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 Model
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
Panel-mounting models
(conforming to IP20)
Panel-mounting models
(conforming to IP20)
Panel-mounting models
(conforming to IP20)
0.1
0.25
0.55
1.1
1.5
0.37
0.55
1.1
1.1
1.5
2.2
4.0
0.1
0.25
0.55
Maximum applied motor capacity kW
1.5
2.2
4.0
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
CIMR-J7AZ41P5
CIMR-J7AZ42P2
CIMR-J7AZ44P0
Note 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.
EC Directives
Classification
EMC Directive
Low-Voltage
Directive
UL/cUL
Applicable standard
EN50081-2 and EN5008-2 prEN50178
UL508C
Versatile
Easy-to-use
Functions
Suppression of
Harmonics
• 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.
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 Nomenclature
Panel
Chapter 1-2
Data display
Display selection key
Switch functions among function display LEDs.
Enter key
Enter data when setting constants.
After selecting constant no. at
PRGM mode, data are displayed.
Increment key
Increase constant no. or data.
Decrement key
Decrease constant no. or data.
Stop/Reset key
Press to stop the motor. If fault occurs, reset the inverter.
Digital operator
Function display LEDs
Selected function is lit (see the functions below). Its data is displayed on data display.
Operation key
Press to run the motor. The RUN light is ON while running.
Alarm LED
Run LED
Frequency setting volume
Set operational frequency with volume.
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
Digital Operator
Chapter 1-2
Data display
Keys
Indicators
(Setting/Monitor item indicators)
FREQ adjuster
Appearance Name
Data display
FREQ adjuster
Function
Displays relevant data items, such as frequency reference, output frequency, and parameter set values.
Sets the frequency reference within a range between 0 Hz and the maximum frequency.
FREF indicator
FOUT indicator
IOUT indicator
MNTR indicator
F/R indicator
LO/RE indicator
PRGM indicator
Mode Key
Increment Key
Decrement Key
Enter Key
The frequency reference can be monitored or set while this indicator is lit.
The output frequency of the Inverter can be monitored while this indicator is lit.
The output current of the Inverter can be monitored while this indicator is lit.
The values set in U01 through U10 are monitored while this indicator is lit.
The direction of rotation can be selected while this indicator is lit when operating the Inverter with the RUN Key.
The operation of the Inverter through the Digital Operator or according to the set parameters is selectable while this indicator is lit.
Note This status of this indicator can be only monitored while the Inverter is in operation. Any RUN command input is ignored while this indicator is lit.
The parameters in n01 through n79 can be set or monitored while this indicator is lit.
Note While the Inverter is in operation, the parameters can be only monitored and only some parameters can be changed. Any RUN command input is ignored while this indicator is lit.
Switches the setting and monitor item indicators in sequence.
Parameter being set will be canceled if this key is pressed before entering the setting.
Increases multi-function monitor numbers, parameter numbers, and parameter set values.
Decreases multi-function monitor numbers, parameter numbers, and parameter set values.
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 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.
4
2-1-2 Installations Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-1 Removing and Mounting the Covers . . . . . . . . . . . . . . . . . . . . . . . .
2-2-3 Standard Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-4 Wiring around the Main Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-5 Wiring Control Circuit Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-6 Conforming to EC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 2
Design
5
Installation
2-1 Installation
2-1-1 Dimensions
CIMR-J7AZ20P1 to CIMR-J7AZ20P7 (0.1 to 0.75 kW) 3-phase 200-V AC Input
CIMR-J7AZB0P1 to CIMR-J7AZB0P4 (0.1 to 0.4 kW) Single-phase 200-V AC Input
Chapter 2-1
Rated voltage
3-phase 200 V AC
Single-phase 200 V AC
5
6 56
68
Model CIMR-J7AZ-
20P1
20P2
20P4
20P7
B0P1
B0P2
B0P4
8.5
D t
D1
70
70
D
Dimensions (mm)
D1 t
10
10
3
3
102
122
70
70
112
42
62
10
10
42
5
5
3
3
5
Weight (kg)
Approx. 0.5
Approx. 0.5
Approx. 0.8
Approx. 0.9
Approx. 0.5
Approx. 0.5
Approx. 0.9
6
Installation
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
Two, 5-dia. holes
Chapter 2-1
Rated voltage
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
5
6 96
108
Model CIMR-J7AZ-
21P5
22P5
B0P7
B1P5
40P2
40P4
40P7
41P5
42P2
8.5
129
154
Dimensions (mm)
D D1
64
64
129
154
81
99
64
64
16
34
129
154
154
64
64
64
D
D1
5
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
CIMR-J7AZ24P0 (4.0 kW) 3-phase 200-V AC Input
CIMR-J7AZ44P0 (4.0 kW) 3-phase 400-V AC Input
Two, 5-dia. holes
Chapter 2-1
Rated voltage
3-phase 200 V AC
3-phase 400 V AC
5
6 128
140
24P0
44P0
Model CIMR-J7AZ-
8.5
161
161
Dimensions (mm)
D D1
71
71
D
D1
5
Weight (kg)
Approx. 2.1
Approx. 2.1
2-1-2 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
!
Caution
!
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.
Do not allow foreign objects to enter inside the product. Doing so may result in fire or malfunction.
Do not apply any strong impact. Doing so may result in damage to the product or malfunction.
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.
Air
Inverter Inverter Inverter Side
W W W 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
!
Caution
!
Caution
!
Caution
!
Caution
!
Caution
!
Caution
Wiring
2-2 Wiring
!
WARNING
!
WARNING
!
WARNING
!
WARNING
Chapter 2-2
Wiring must be performed only after confirming that the power supply has been turned OFF. Not doing so may result in electrical shock.
Wiring must be performed by authorized personnel. Not doing so may result in electrical shock or fire.
Be sure to confirm operation only after wiring the emergency stop circuit. Not doing so may result in injury.
Always connect the ground terminals to a ground of 100 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.
Install external breakers and take other safety measures against shortcircuiting in external wiring. Not doing so may result in fire.
Confirm that the rated input voltage of the Inverter is the same as the AC power supply voltage. An incorrect power supply may result in fire, injury, or malfunction.
Connect the Braking Resistor and Braking Resistor Unit as specified in the manual. Not doing so may result in fire.
Be sure to wire correctly and securely. Not doing so may result in injury or damage to the product.
Be sure to firmly tighten the screws on the terminal block. Not doing so may result in fire, injury, or damage to the product.
Do not connect an AC power to the U, V, or W output. Doing so may result in damage to the product or malfunction.
10
Wiring
Chapter 2-2
2-2-1 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.
1 2
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
Chapter 2-2
2-2-2 Terminal Block
Before wiring the terminal block, be sure to remove the front cover, top protection cover, and the bottom protection cover.
Position of Terminal Block
Ground terminal
Main circuit input terminals
Control circuit terminals
Main circuit output terminals
Arrangement of Control Circuit Terminals
Ground terminal
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
Main Circuit Input Terminals
(Upper Side)
Main Circuit Input Terminals
(Upper Side)
Main Circuit Output Terminals
(Lower Side)
Main Circuit Output Terminals
(Lower Side)
12
Wiring
Chapter 2-2
Main Circuit Terminals
Symbol
R/L1
Name
Power Supply input terminals
S/L2
T/L3
U/T1
V/T2
W/T3
+1
+2
–
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
Connection terminals +1 and +2:
DC reactor connection terminals
+1 and –:
DC power supply input terminals
Ground terminal
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
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.)
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.
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
S2
S3
S4
S5
Name
Forward/Stop
Multi-function input 1 (S2)
Multi-function input 2 (S3)
Multi-function input 3 (S4)
Multi-function input 4 (S5)
SC Sequence input common
Function
Forward at ON. Stops at OFF.
Set by parameter n36
(Reverse/Stop)
Set by parameter n37
(Fault reset)
Set by parameter n38
(External fault:Normally open)
Set by paramter n39
(Multi-step reference 1)
Common for S1 through S5
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%.
20 mA at 12 V DC FS
FR
Frequency reference power supply
Frequency reference input
Output
FC
MA
Frequency reference common Common for frequency reference use
Multi-function contact output
(Normally open)
MB Multi-function contact output
(Normally closed)
MC Multi-function contact output common
Set by parameter n40
(during running)
Common for MA and MB use
AM Analog monitor output
AC Analog monitor output common
DC power supply for frequency reference use
Input terminal for frequency reference use
Set by parameter n44
(Output frequency)
Common for AM use
Note
0 to 10 V DC
(input impedance: 20 k Ω )
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 SW8
SW7 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
3.3k
0.1
µ
360
SC
GND
PNP
(
24 V DC
+ 10%)
SC
GND
3.3k
0.1
µ
SW7
360
24V
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.
SW8 setting Frequency reference input method
Voltage input
Current input
V (OFF)
I (ON)
Frequency reference selection
(parameter n03)
Set value 2
Set value 3 or 4
15
Wiring
2-2-3 Standard Connections
Noise Filter
DC reactor
(optional)
Chapter 2-2
3-phase 200 V AC
Single-phase 200 V AC
(see note 1)
3-phase 400 V AC
Forward/Stop
Multi-function input 1 (S2)
Multi-function input 2 (S3)
Multi-function input 3 (S4)
Multi-function input 4 (S5)
Sequence input common
FREQ adjuster
Frequency reference power supply 20 mA at +12 V
Frequency reference input
Frequency reference common
(2k
Ω
, 1/4 W min.)
Multi-function contact output
NO
NC
Common
Analog monitor output
Analog monitor output common
Note 1.
Connect single-phase 200 V AC to terminals R/L1 and S/L2 of the CIMR-
J7AZB _ .
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 Set parameter n37 for 3-wire sequence input.
16
Wiring
Chapter 2-2
2-2-4 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
20P1 R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
Terminal screw
M3.5
Screw tightening torque
(N • m)
0.8 to 1.0
Wire size
(mm
0.75 to 2
2 )
Recommended wire size
(mm 2 )
2
Moldedcase circuit breaker capacity (A)
5
20P2 0.8 to 1.0
0.75 to 2 2 5
20P4
20P7
21P5
22P2
24P0
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M4
0.8 to 1.0
0.75 to 2 2
0.8 to 1.0
0.75 to 2 2
0.8 to 1.0
2 to 5.5
0.8 to 1.0
2 to 5.5
1.2 to 1.5
2 to 5.5
2
3.5
5.5
5
10
20
20
30
17
Wiring
Single-phase 200-V AC Model
Model
CIMR-J7AZ-
Terminal symbol
B0P1
Chapter 2-2
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
Terminal screw
M3.5
Terminal torque
(N • m)
0.8 to 1.0
Wire size
(mm 2 )
0.75 to 2
Recommended wire size
(mm 2 )
2 5
Circuit breaker capacity
(A)
B0P2
B0P4
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
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
0.8 to 1.0
0.75 to 2 2
5
10
B0P7
B1P5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
0.8 to 1.0
0.8 to 1.0
2 to 5.5
2 to 5.5
3.5
2
5.5
2
20
20
3-phase 400-V AC Model
Model
CIMR-J7AZ-
40P2
Terminal symbol
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
Terminal screw
M3.5
Terminal torque
(N • m)
0.8 to 1.0
Wire size
(mm 2 )
2 to 5.5
Recommended wire size
(mm 2 )
2 5
Circuit breaker capacity
(A)
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 0.8 to 1.0
2 to 5.5
2 5
41P5
42P2
44P0
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M4
R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M4
0.8 to 1.0
2 to 5.5
1.2 to 5.5
2 to 5.5
1.2 to 1.5
2 to 5.5
2
2
2
3.5
10
10
20
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
OFF ON
MB
MC
Fault output
(NC)
Installing a Ground
Fault Interrupter
Installing a
Magnetic Contactor
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.
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
Connecting Input
Power Supply to the
Terminal Block
Installing an AC Reactor
Installing a
Surge Absorber
Installing a Noise Filter on the Power Supply Side
Chapter 2-2
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).
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.
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.
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
Power supply
Input Noise Filters
EMC-conforming Input Noise Filter: 3G3JV-PFI _
MCCB CIMR-J7AZ
Noise
Filter
VARISPEED
MCCB
Programmable
Controller
Note Use a Noise Filter designed for the Inverter. A general-purpose Noise Filter will be less effective and may not reduce noise.
20
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 Short or Ground
Output Terminals
Do not Use a Phase
Advancing Capacitor or
Noise Filter
Do not Use an
Electromagnetic Switch of
Magnetic Contactor
Installing a Thermal Relay
Installing a Noise Filter on the Output Side
Never connect a power supply to output terminals U/T1, V/T2, or W/T3.
If voltage is applied to the output terminals, the internal circuit of the Inverter will be damaged.
If the output terminals are touched with bare hands or the output wires come into contact with the Inverter casing, an electric shock or grounding will occur.
This is extremely hazardous.
Also, be careful not to short the output wires.
Never connect a phase advance capacitor or LC/RC Noise Filter to the output circuit.
Doing so will result in damage to the Inverter or cause other parts to burn.
Do not connect an electromagnetic switch of magnetic contactor to the output circuit.
If a load is connected to the Inverter during running, an inrush current will actuate the overcurrent protective circuit in the Inverter.
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.
Connect a Noise Filter to the output side of the Inverter to reduce radio noise and induction noise.
Power supply
MCCB CIMR-J7AZ
VARISPEED
Noise
Filter
Induction noise Radio noise
Signal line
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 MCCB
CIMR-J7AZ
Metal pipe
Noise
Filter
VARISPEED
Noise
Filter
Cable Length between
Inverter and Motor
Note
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.
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.
22
Wiring
Ground Wiring
Chapter 2-2
• 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
Harmonics
Chapter 2-2
■ 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) Third harmonic (180 Hz)
Distorted current wave form
24
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
Countermeasures with
Reactors against
Harmonics Generation
Wiring Method
Power supply
Chapter 2-2
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.
With DC Reactor
DC reactor
(optional)
MCCB
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
VARISPEED
CIMR-J7AZ
Power supply
With DC and AC Reactors
DC reactor
(optional)
MCCB
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
AC reactor
(optional)
VARISPEED
CIMR-J7AZ
Reactor Effects
Harmonics suppression method
No reactor
AC reactor
DC reactor
DC and AC reactors
Harmonics are effectively suppressed when the DC reactor is used with the
AC reactor as shown in the following table.
5th harmonic
65
38
30
28
7th harmonic
41
14.5
13
9.1
Harmonic generation rate (%)
11th harmonic
13th harmonic
17th harmonic
19th harmonic
8.5
7.4
7.7
3.4
4.3
3.2
3.1
1.9
8.4
7.2
5
4.1
4.7
3.2
3.2
2.4
23rd harmonic
2.6
1.7
3.0
1.6
25th harmonic
1.8
1.3
2.2
1.4
26
Wiring
Chapter 2-2
2-2-5 Wiring Control Circuit Terminals
A control signal line must be 50 m maximum and separated from power lines.
The frequency reference must be input into the Inverter through shielded, twisted-pair wires.
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 screw size
M3
Tightening torque N • m
0.5 to 0.6
Wire Wire size Recommended wire size
Single wire 0.5 to 1.25
(20 to 16)
0.75 (18)
Standard wire
0.5 to 1.25
(20 to 16)
Cable
Cable with polyethylene sheath
Sequential Input (S1 through S5 and SC) and
Analog Monitor Output (AM or AC)
Terminal screw size
M2
Tightening torque N • m
Wire Wire size
0.22 to 0.25 Single wire 0.5 to 1.25
(20 to 16)
Recommended wire size
0.75 (18)
Cable
Cable with polyethylene sheath
Standard wire
0.5 to 0.75
(20 to 18)
Frequency Reference Input (FR, FS, and FC)
Terminal screw size
M2
Tightening torque N • m
Wire Wire size
0.22 to 0.25 Single wire 0.5 to 1.25
(20 to 16)
Recommended wire size
0.75 (18)
Standard wire
0.5 to 0.75
(20 to 18)
Cable
Special cable with polyethylene sheath and shield for measurement use
Solderless Terminal Size The use of solderless terminals for the control circuit terminals is recommended for the reliability and ease of connection.
Note Make sure that the wire size is 0.5 mm
2
when using the following solderless terminal.
1.0 dia.
Model: Phoenix Contact's A1 0.5-8 WH
2.6 dia.
(Size: mm)
27
Wiring
Wiring Method
Chapter 2-2
Note
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.
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.
Note Applying excessive torque may damage the terminal block. If the tightening torque is insufficient, homever, wires may disconnect.
28
Wiring
Chapter 2-2
2-2-6 Conforming to EC Directive
The following description provides the wiring method of the Inverter to meet
DC Directive requirements. If the following requirements are not satisfied, the whole equipment incorporating the Inverter will need further confirmation.
Standard Connection
Main Circuit Terminals
Noise Filter
MCCBs Clamp core
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
Control Circuit Terminals
Forward/Stop
Multi-function input 1 (S2)
Multi-function input 2 (S3)
Multi-function input 3 (S4)
Multi-function input 4 (S5)
Sequence input common
Frequency reference power supply at +12 V
FREQ adjuster
Frequency reference input
Frequency reference common
(2k Ω , 1/4 W min.)
Multi-function contact output
NO
NC
Common
Analog-monitor output
Analog-monitor output common
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-J7AZ-
20P1/20P2/20P4/20P7
21P5/22P2
24P0
Schaffner model
3G3JV-PFI2010-SE
3G3JV-PFI2020-SE
3-phase 200-V AC Noise Filter
Rasmi model
3G3JV-PFI2010-E
3G3JV-PFI2020-E
--- 3G3JV-PFI2030-E
10
16
26
Rated current (A)
Single-phase 200-V AC Noise Filter
Inverter
Model 3G3JVSchaffner model
B0P1/B0P2/B0P4 3G3JV-PFI1010-SE
B0P7/B1P5 3G3JV-PFI1020-SE
3-phase 400-V AC Noise Filter
Inverter
Model CIMR-J7AZSchaffner model
Single-phase 200-V Noise Filter
Rasmi model
3G3JV-PFI1010-E
3G3JV-PFI1020-E
10
20
Rated current (A)
40P2/40P4
40P7/41P5/44P0
A44P0
3G3JV-PFI3005-SE
3G3JV-PFI3010-SE
3G3JV-PFI3020-SE
Single-phase 200-V Noise Filter
Rasmi model Rated current (A)
Schaffner model Rasmi model
3G3JV-PFI3005-E
3G3JV-PFI3010-E
3G3JV-PFI3020-E
5
10
20 15
Connecting a Motor to the
Inverter
Wiring a Control Cable
• 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
Model
2CAT3035-1330 TDK
Manufacturer
• Be sure to connect a cable with a braided shield to the control circuit terminals.
• Ground the shield on the Inverter side only.
30
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.
Cable clamp
Ground plate
Cable
LVD Conformance
Shield
• 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
21P5
22P2
24P0
B0P1
B0P2
B0P4
B0P7
B1P5
Inverter
Model CIMR-J7AZ-
20P1
20P2
20P4
20P7
NF30
NF30
MCCB (Mitsubishi Electric)
Type Rated current (A)
5
5
5
10
5
10
20
20
20
20
30
5
31
Wiring
Chapter 2-2
400-V Models
Inverter
Model CIMR-J7AZ-
40P2
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
33
Nomenclature
3-1 Nomenclature
Chapter 3-1
Data display
Keys
Indicators
Setting/Monitor item indicators
FREQ adjuster
34
Appearance Name
Data display
FREQ adjuster
Function
Displays relevant data items, such as frequency reference, output frequency, and parameter set values.
Sets the frequency reference within a range between 0 Hz and the maximum frequency.
FREF indicator
FOUT indicator
IOUT indicator
MNTR indicator
F/R indicator
LO/RE indicator
PRGM indicator
Mode Key
Increment Key
Decrement Key
Enter Key
The frequency reference can be monitored or set while this indicator is lit.
The output frequency of the Inverter can be monitored while this indicator is lit.
The output current of the Inverter can be monitored while this indicator is lit.
The values set in U01 through U10 are monitored while this indicator is lit.
The direction of rotation can be selected while this indicator is lit, when operating the Inverter with the RUN Key.
The operation of the Inverter through the Digital Operator or according to the 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.
Decreases multi-function monitor numbers, parameter numbers, and parameter set values.
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 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
Chapter 3-2
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
Example of Frequency Reference Settings
Chapter 3-2
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
Status Monitor
U01
Item
U02
U03
U04
Display
Frequency reference
Output frequency
Output current
Output voltage
U05 DC bus voltage
U06 Input terminal status
Chapter 3-2
Display unit
Hz
Hz
A
V
V
---
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.
U07
U09
Output terminal status ---
Error log
(most recent one)
---
: Input ON
Not used
Shows the ON/OFF status of outputs.
: 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)
: Closed : Open
Not used
Displays the latest error.
Terminal MA: Multi-function contact output
U10 Software No.
---
Error
OMRON use only.
37
Outline of Operation
Example of Forward/Reverse Selection Settings
Chapter 3-2
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
Example of Paramter Settings
Chapter 3-2
Cancels set data.
Key sequence
In approximately
1 s.
Indicator
Display example
In approximately 1 s.
Explanation
Power ON
Press the Mode Key repeatedly until the PRGM indicator is lit.
Use the Increment or Decrement Key to set the parameter number.
Press the Enter Key.
The data of the selected parameter number will be displayed.
Use the Increment or Decrement Key to set the data.
At that time the display will flash.
Press the Enter Key so that the set value will be entered and the data display will be lit. (see note 1)
The parameter number will be displayed.
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
Chapter 3-2
40
4-2-1 Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2-2 Check the Display Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2-3 Initializing Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2-4 Setting the Rated Motor Current . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2-5 No-load Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2-6 Actual Load Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 4
Test Run
41
!
WARNING
!
WARNING
!
Caution
!
Caution
!
Caution
!
Caution
!
WARNING
!
WARNING
!
WARNING
!
WARNING
!
WARNING
!
WARNING
Chapter 4
Turn ON the input power supply only after mounting the front cover, terminal covers, bottom cover, Operator, and optional items. Not doing so may result in electrical shock.
Do not remove the front cover, terminal covers, bottom cover, Operator, or optional items while the power is being supplied. Not doing so may result in electrical shock or damage to the product.
Do not operate the Operator or switches with wet hands. Doing so may result in electrical shock.
Do not touch the inside of the Inverter. Doing so may result in electrical shock.
Do not come close to the machine when using the error retry function because the machine may abruptly start when stopped by an alarm. Doing so may result in injury.
Do not come close to the machine immediately after resetting momentary power interruption to avoid an unexpected restart (if operation is set to be continued in the processing selection function after momentary power interruption is reset). Doing so may result in injury.
Provide a separate emergency stop switch because the STOP Key on the
Operator is valid only when function settings are performed. Not doing so may result in injury.
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.
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.
Provide a separate holding brake when necessary. Not doing so may result in injury.
Do not perform a signal check during operation. Doing so may result in injury or damage to the product.
Do not carelessly change settings. Doing so may result in injury or damage to the product.
42
Procedure for Test Run
Chapter 4-1
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
Chapter 4-2
4-2 Operation Example
4-2-1 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
Chapter 4-2
4-2-3 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 v
In approximately 1 s.
Press the Mode Key repeatedly until the PRGM indicator is lit.
Press the Enter Key. The data of n01 will be displayed.
Use the Increment or Decrement
Key to set n01 to 8. The display will flash.
Press the Enter Key so that the set value will be entered and the data display will be lit.
The parameter number will be displayed.
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 current of the Inverter
Unit of setting
0.1 A
Changes during operation
Default setting
No
(see note 1)
Note 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.
In approximately 1 s.
Use the Increment or Decrement
Key until n32 is displayed.
Press the Enter Key. The data of n32 will be displayed.
Use the Increment or Decrement
Key to set the rated motor current.
The display will flash.
Press the Enter Key so that the set value will be entered and the data display will be lit.
The parameter number will be displayed.
46
Operation Example
Chapter 4-2
4-2-5 No-load Operation
• Start the no-load motor (i.e., not connected to the mechanical system) using the Digital Operator.
Note Before operating the Digital Operator, check that the FREQ adjuster is set to
MIN.
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
Chapter 4-2
4-2-6 Actual Load Operation
• After checking the operation with the motor in no-load status, connect the mechanical system and operate with an actual load.
Note Before operating the Digital Operator, check that the FREQ adjuster is set to
MIN.
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
5-5-1 Selecting the Frequency Reference . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5-2 Upper and Lower Frequency Reference Limits . . . . . . . . . . . . . . . .
5-5-3 Adjusting the Analog Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5-4 Setting Frequency References through Key Sequences . . . . . . . . . .
5-6 Setting the Acceleration/Deceleration Time . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9-1 Multi-function Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9-2 Multi-function Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 No
Setting range
0, 1, 6, 8, 9
Parameter Write-prohibit Selection/
Parameter Initialization
Unit of setting
1
Changes during operation
Default setting 1
Note This parameter makes it possible to write-prohibit parameters, change the parameter set or displayed range, or initialize all parameters to default values.
0
1
6
8
Set Value
9
Value 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 Rated Motor Current
Setting range
0.0% to 120% (A) of rated output current of Inverter
Unit of setting
0.1 A
Changes during operation
Default setting
No
(see note 1)
Note 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
n10
Setting range n11
Setting range n12
Setting range n13
Setting range n14
Setting range n15
Setting range
V/f Control
Chapter 5-2
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 No
Setting range
50.0 to 400 Hz
Maximum Frequency (FMAX)
Unit of setting
0.1 Hz
(see note 1)
Changes during operation
Default setting 60.0
1 to 255 (V)
(see note 2)
Maximum Voltage (VMAX)
Unit of setting
1 V
Changes during operation
Default setting
No
200
(see note 2)
No Maximum Voltage Frequency (FA)
0.2 to 400 (Hz) Unit of setting
0.1 Hz
(see note 1)
Changes during operation
Default setting 60.0
Middle Output Frequency (FB)
0.1 to 399 (Hz) Unit of setting
0.1 Hz
(see note 1)
Changes during operation
Default setting 1.5
Middle Output Frequency Voltage (VC)
1 to 255 (V) (see note 2) Unit of setting
1 V
Minimum Output Frequency (FMIN)
0.1 to 10.0 (Hz) Unit of setting
0,1 Hz
Changes during operation
Default setting 12
No
(see note 2)
Changes during operation
Default setting 1.5
No
No
Minimum Output Frequency Voltage (VMIN)
1 to 50 (V) (see note 2)
Note
Unit of setting
1 V
Changes during operation
Default setting
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
Output voltage
(V) n10(VMAX)
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.
Note 1. Set the parameters so that the
following condition will be satisfied.
n14 ≤ n09
Note 2.
The value set in n13 will be ignored if
parameters n14 and n12 are the same n13(VC) n15(VMIN)
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
Chapter 5-3
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
Local
Basic concept Description
The Inverter in a system operates according to the control signal of the host controller.
RUN Command
Selectable from two types and set in n02.
Frequency Reference
Selectable from five types and set in n03.
RUN Command The Inverter in a system operates independently in this mode so that the Inverter can be checked independently.
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
Chapter 5-4
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 Operation Command Selection No
Setting range
0 to 2 Unit of setting
1
Changes during operation
Default setting 0
0
1
2
Set Values
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.
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 STOP Key Function Selection No
Setting range
0, 1 Unit of setting
1
Changes during operation
Default setting 0
Set Values
0
1
Value 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.
54
Setting the Frequency Reference
Chapter 5-5
5-5 Setting the Frequency Reference
5-5-1 Selecting the Frequency Reference
The following description provides information on how to set the frequency reference in the Inverter. Select the method according to the operation mode.
Remote mode: Select and set one out of six frequency references in n03.
Local mode: Select and set one out of two frequency references in n07.
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 Frequency Reference Selection No
Setting range
0 to 4, 6 Unit of setting
1
Changes during operation
Default setting 0
3
4
6
0
1
2
Set Values
Value 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 Frequency Reference Selection in Local Mode No
Setting range
0, 1 Unit of setting
1
Changes during operation
Default setting 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
Chapter 5-5
5-5-2 Upper and Lower Frequency Reference Limits
Regardless of the methods of operation mode and frequency reference input, the upper and lower frequency reference limits can be set.
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 Frequency Reference Upper Limit No
Setting range
0% to 110%
(Max. frequency = 100%)
Unit of setting
1%
Changes during operation
Default setting 100 n31
Setting range
Frequency Reference Lower Limit Changes during operation
Default setting 0
No
0% to 110%
(Max. frequency = 100%)
Note
Unit of setting
1%
If n31 is set to a value less than the minimum output frequency (FMIN), the
Inverter will have no output when a frequency reference less than the minimum output frequency input is ON.
5-5-3 Adjusting the Analog Input
Input characteristic adjustments may be necessary for analog frequency references to be input. At that time, use the following parameters for gain, bias, and filter time parameter adjustments.
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%)
Unit of setting
1%
Changes during operation
Default setting 100
Yes n42
Setting range n43
Setting range
Frequency Reference Bias Changes during operation
Default setting 0
Yes
-99% to 99%
(Max. frequency = 100%)
Unit of setting
1%
• 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.
Analog Frequency Reference Filter Time No
0.00 to 2.00 (s) Unit of setting
0.01 s
Changes during operation
Default setting 0.10
56
n26
Setting range n27
Setting range n28
Setting range n22
Setting range n23
Setting range n24
Setting range n25
Setting range
Setting the Frequency Reference
Chapter 5-5
5-5-4 Setting Frequency References through Key Sequences
The following description provides information on parameters related to frequency reference settings through key sequences on the Digital Operator
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 Unit of setting
0.01 Hz
(see note 1)
Changes during operation
Default setting 6.0
Yes
Frequency Reference 2
0.0 to max. frequency Unit of setting
Frequency Reference 3
0.0 to max. frequency Unit of setting
Frequency Reference 4
0.0 to max. frequency Unit of setting
Frequency Reference 5
0.0 to max. frequency Unit of setting
Frequency Reference 6
0.0 to max. frequency Unit of setting
Frequency Reference 7
0.0 to max. frequency Unit of setting
0.01 Hz
(see note 1)
Changes during operation
Default setting 0.0
0.01 Hz
(see note 1)
Changes during operation
Default setting 0.0
0.01 Hz
(see note 1)
Changes during operation
Default setting 0.0
0.01 Hz
(see note 1)
Changes during operation
Default setting 0.0
0.01 Hz
(see note 1)
Changes during operation
Default setting 0.0
0.01 Hz
(see note 1)
Changes during operation
Default setting 0.0
Yes
Yes
Yes
Yes
Yes
Yes
Note
Frequency Reference 8
0.0 to max. frequency Unit of setting
0.01 Hz
(see note 1)
Changes during operation
Default setting 0.0
Yes
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
Chapter 5-5
Frequency reference
Frequency reference 1
Frequency reference 2
Frequency reference 3
Frequency reference 4
Frequency reference 5
Frequency reference 6
Frequency reference 7
Frequency reference 8
No multi-step speed reference 3 settings will be required if only frequency references 1 through 4 are used, for example. Any multi-step speed reference not set is regarded as turned-OFF input.
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 Unit of setting
0.01 Hz
(see note 1)
Changes during operation
Default setting 6.0
Yes
Note
OFF
Multi-step speed reference 1
(Set value: 6)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Multi-step speed reference 2
(Set value: 7)
OFF
ON
ON
OFF
OFF
ON
ON
OFF
Multi-step speed reference 3
(Set value: 8)
OFF
OFF
OFF
ON
ON
ON
ON
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
Power On
Explanation
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
• 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 No
Setting range
0, 1 Unit of setting
1
Changes during operation
Default setting 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
Chapter 5-6
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 Acceleration time 1 Yes
Setting range
0.0 to 999 (s) Unit of setting
0.1 s
(see note)
Changes during operation
Default setting 10.0
n17
Setting range
0.0 to 999 (s)
Deceleration Time 1
Unit of setting
0.1 s
(see note)
Changes during operation
Default setting 10.0
Yes n18
Setting range
0.0 to 999 (s)
Acceleration Time 2
Unit of setting
0.1 s
(see note)
Changes during operation
Default setting 10.0
Yes n19
Unit of setting
0.0 to 999 (s)
Note
Deceleration Time 2 Changes during operation
Default setting 10.0
Yes
Unit of setting
0.1 s
(see note)
Values will be set in 0.1-Hz increments if the frequency is less than 100 Hz and 1-Hz increments if the frequency is 100 Hz or over.
60
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 S-shape Acceleration/Deceleration Characteristic No
Setting range
0 to 3 Unit of setting
1
Changes during operation
Default setting 0
Set Values
Value
2
3
0
1
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
Chapter 5-7
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 No
Unit of setting
1
Changes during operation
Default setting 0 Setting range
Set Values
Value
0
1
0, 1
Accept
Not accept
Description
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 Interruption Mode Selection Changes during operation
Default setting 0
No
Setting range
Set Values
Value
0
1
0, 1 Unit of setting
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
n37
Setting range n38
Setting range n39
Setting range
Multi-function I/0
Chapter 5-9
5-9 Multi-function I/0
5-9-1 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 Multi-function Input 1 (S2) No
Setting range
2 to 8, 10 to 22
(see note)
Unit of setting
1
Changes during operation
Default setting 2
No
0,2 to 8, 10 to 22
(see note)
Multi-function Input 2 (S3)
Unit of setting
1
Changes during operation
Default setting 5
2 to 8, 10 to 22
(see note)
Multi-function Input 3 (S4)
Unit of setting
1
Changes during operation
Default setting 3
Multi-function Input 4 (S5) Changes during operation
Default setting 6 2 to 8, 10 to 22, 34, 35
(see note)
Note
Unit of setting
1
Do not set values outside the above setting ranges.
No
No
63
Multi-function I/0
Chapter 5-9
18
19
20
21
22
2
3
4
5
Set Values
7
8
10
Value Function Description command By setting n37 to 0, the set value in n36 is ignored and the following setting are forcibly made.
S1:
S2:
S3:
RUN input (RUN when ON)
STOP input (STOP when OFF)
Forward/Reverse rotation command
(OFF: Forward; ON: Reverse)
Reverse/Stop
External fault (NO) reference 1
Multi-step speed reference 2
Reverse rotation command (2-wire sequence)
ON: External fault (FP _ detection: _ is a terminal number)
OFF: External fault (EF _ detection: _ is a terminal number) External fault (NC)
Fault reset
Multi-step speed reference 3
ON: Fault reset (disabled while RUN command is input)
Signals to select frequency references 2 through 8.
Note Refer to
5-5-4 Setting Frequency References through Key
for the relationship between multi-step speed references
and frequency references.
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)
12
13
14 time selection
External base block command (NO)
ON: Output shut off (while motor coasting to a stop and “bb” flashing)
External base block command (NC)
Search command (Searching starts from maximum frequency)
OFF: Output shut off (with motor free running and “bb” flashing)
ON: Speed search (Searching starts from n09)
ON: Speed search
(Searching starts from preset frequency)
16 Acceleration/Decelerationprohibit command
17 Local or remote selection
ON: Acceleration/Deceleration is on hold (running at parameter frequency)
ON: Local mode (operated with the Digital Operator)
Note After this setting is made, mode selection with the Digital Operator is not possible.
34
35
Communications or remote selection
ON: RS-422A/485 communications input is enabled.
OFF: The settings of n02 and n03 are enabled.
Emergency stop fault (NO) The Inverter stops according to the setting in n04 for interruption mode
Emergency stop alarm (NO) selection with the emergency stop input turned ON.
n04 set to 0: Decelerates to stop at deceleration time 2 set in n19.
Emergency stop fault (NC) n04 set to 1: Coasts to a stop.
Emergency stop alarm (NC)
Note NO: Emergency stop with the contact closed
NC: Emergency stop with the contact opened.
Up or down command
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.
Self-diagnostic test
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)
64
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
S1
Forward/Stop (Forward rotation with the forward-rotation switch 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)
Direction switch
S2 STOP input (with the STOP switch opened)
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
ON
Time
Speed Search command
ON
0.5 s min.
Time
Output frequency
High-speed frequency or set frequency
(frequency reference)
Minimum base block time (0.5 s) Speed search operation
Time
66
Multi-function I/0
Chapter 5-9
5-9-2 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) Changes during operation
Default setting 1
No
Setting range
0 to 7, 10 to 17
(see note)
1
Note Do not set values outside the above setting ranges.
Set Values
3
4
5
0
Value Function
Fault output
Description
ON: Fault output (with protective function working)
1 Operation in progress ON: Operation in progress (with RUN command input or inverter output)
2 Frequency detection
6
7
10
11
12
Idling
Frequency detection 1
Frequency detection 2
Overtorque being monitored
(NO-contact output)
Overtorque being monitored
(NC-contact output)
Alarm output
Base block in progress
RUN mode
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)
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)
13
14
15
16
17
Inverter ready
Fault retry
ON: Inverter ready to operate (with no fault detected)
ON: Fault retry (Inverter resetting with fault retry (n48) not set to 0)
UV in progress ON: Undervoltage being monitored
(main circuit undervoltage UV or UV1 detected)
Rotating in reverse direction ON: Rotating in reverse direction
Speed search in progress ON: Speed search in progress
Note
Unit of setting
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 Analog Monitor Output No
Setting range
0, 1 Unit of setting
1
Changes during operation
Default setting 0
Set Value
0
1
Value Description
Output frequency (Reference: 10 V at max. frequency)
Output current (Reference: 10 V with rated output current) n45
Setting range
0.00 to 2.00
Analog Monitor Output Gain
Note
Changes during operation
Default setting 1.00
Yes
Unit of setting
0.01
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
6-7-1 Motor Protection Characteristics (n33 and n34) . . . . . . . . . . . . . . . .
6-7-2 Cooling Fan Operation Function (n35) . . . . . . . . . . . . . . . . . . . . . . .
6-7-3 Momentary Power Interruption Compensation (n47) . . . . . . . . . . . .
6-7-5 Frequency Jump Function (n49 to n51) . . . . . . . . . . . . . . . . . . . . . .
6-7-6 Frequency Detection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-7-7 UP/DOWN Command Frequency Memory (n62) . . . . . . . . . . . . . .
69
8
9
4
7
2
3
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
Setting range
1 to 4, 7 to 9
Carrier Frequency Selection
Unit of setting
1
Changes during operation
Default setting (see note)
No
Note The default setting varies with the capacity of the Inverter model.
Set Values
Value Description
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)
Note
• 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.
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
83.3 Hz (Set value: 7)
41.6 Hz (Set value: 8)
27.7 Hz (Set value: 9)
208.3 Hz (Set value: 7)
104.1 Hz (Set value: 8)
69.4 Hz (Set value: 9)
Output frequency
70
Setting the Carrier Frequency
Chapter 6-1
3-phase
200 V
Single-phase
200 V
3-phase 400 V
B0P1
B0P2
B0P4
B0P7
B1P5
40P2
40P4
40P7
20P1
20P2
20P4
20P7
21P5
22P2
24P0
41P5
42P2
44P0
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.
CIMR-J7AZ-
Rated output current (A)
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)
0.8
1.6
3.0
5.0
8.0
1.2
1.8
3.4
0.8
1.6
3.0
5.0
8.0
11.0
17.5
4.8
5.5
8.6
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Set to 3 Reduced rated output current (A)
Q
Q
Q
10.0
16.5
Q
Q
Q
Q
Set to 4 Reduced rated output current (A)
Q
Q
Q
Q
7.0
7.0
1.0
1.6
3.0
4.0
4.8
7.6 n75 Low Carrier Frequency at Low Speed Changes during operation
Default setting 0
No
Setting range
0, 1 Unit of setting
1
Set Values
0
1
Value 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 n53
Setting range
0.0 to 25.5 (s)
Interruption DC Control Time
Unit of setting
0.1 s
Changes during operation
Default setting 0.5
Chapter 6-2
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
0 to 100 (%)
DC Control Current
Unit of setting
1%
Changes during operation
Default setting 50
No
No n54
Setting range
0.0 to 25.5 (s)
Startup DC Control Time Changes during operation
Default setting 0.0
No
Unit of setting
0.1s
• 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) n54
Startup DC control time
Time n53
Interruption DC control time
72
Stall Prevention Function
Chapter 6-3
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
Setting range
0, 1
Stall Prevention Level during Deceleration
Unit of setting
1
Changes during operation
Default setting 0
No
Set Values
0
1
Value 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
Chapter 6-3
n56
Setting range
Set Values
Stall Prevention Level during Acceleration
30 to 200 (%)
Changes during operation
Set Values 170
No
Unit of setting
1%
• 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)
Output frequency
Time
The output frequency is controlled so that the Inverter will not stall.
Time
74
Stall Prevention Function
Chapter 6-3
n57
Setting range
Set Values
30 to 200 (%)
Stall Prevention during Operation Changes during operation
Default setting 160
No
Unit of setting
1%
• 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
Chapter 6-4
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
0 to 4
Overtorque Detection Function Selection
Unit of setting
1
Changes during operation
Default setting 0
No
Set Values
0
1
2
3
4
Value 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.
• 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
Output current
See note.
n60 (Overtorque detection level)
Time n61
Overtorque detection time
Overtorque detection (NO)
ON
Time
Note Overtorque n60
Setting range
30 to 200 (%)
Overtorque Detection Level
Unit of setting
1%
Changes during operation
Default setting 160
No
76
Torque Compensation Function
Chapter 6-5
Set Values n61
Setting range
0.1 to 10.0 (s)
Set the parameter as percentage based on the rated Inverter current as
100%.
Overtorque Detection Time No
Unit of setting
0.1 s
Changes during operation
Default setting 0.1
Set Values • 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
0.0 to 2.5
Torque Compensation Gain
Unit of setting
0.1
Changes during operation
Default setting 1.0
Yes
Set Values • 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
Chapter 6-6
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
0.0 to 20.0 (Hz)
Motor Rated Slip
Unit of setting
0.1 Hz
Changes during operation
Default setting (see note)
Yes
Set Values
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.
n65
Rated slit value (Hz) = Rated frequency (Hz) –
Rated prm Number of poles
120
Motor No-load Current
Unit of setting
1%
Changes during operation
Default setting (see note)
No
Setting range
0 to 99 (%)
Set Values n66
Setting range
0.0 to 2.5
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.
Slip Compensation Gain
Unit of setting
0.1
Changes during operation
Default setting 0.0
(see note)
Yes
Set Values n67
Setting range
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.
Slip Compensation Time Constant
0.0 to 25.5 (s) Unit of setting
0.1 s
Changes during operation
Default setting 2.0
No
Set Values • 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.
The motor vibrates: Set the value to a larger value.
The motor response is low: Set the value to a smaller value.
78
Other Functions
Chapter 6-7
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
0 to 2
Motor Protection Characteristic Selection
Unit of setting
1
Changes during operation
Default setting 0
No
Set Values
0
1
Value Description
Protection characteristics for general-purpose induction motors
Protection characteristics for Inverter-dedicated motors n34
Setting range
Set Values
1 to 60 (min)
• 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.
Motor Protection Time No
Unit of setting
1 min
Changes during operation
Default setting 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
Chapter 6-7
6-7-2 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
0, 1
Cooling Fan Operation Selection
Unit of setting
1
Changes during operation
Default setting 0
No
Set Values
0
1
Value 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
0 to 2
Momentary Power Interruption Compensation
Unit of setting
1
Changes during operation
Default setting 0
No
Set Values
0
1
2
Value 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
Chapter 6-7
6-7-4 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
0 to 10
Fault Retry
Unit of setting
1
Changes during operation
Default setting 0
No
Set Values • 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
Chapter 6-7
6-7-5 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
0.0 to 400 (Hz)
Jump Frequency 1
Unit of setting
0.1 Hz
(see note)
Changes during operation
Default setting 0.0
No n50
Setting range n51
Setting range
Set Values
0.0 to 400 (Hz)
0.0 to 25.5 (Hz)
Note
Jump Frequency 2
Unit of setting
0.1 Hz
(see note)
Changes during operation
Unit of setting 0.0
No
Jump Width Changes during operation
Default setting 0.0
No
Unit of setting
0.1 Hz
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 n51 n49 ≥ n50
Reference frequency n50 n49
82
Other Functions
Chapter 6-7
6-7-6 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
Detection width ±2 Hz
Reset width ±4 Hz
Frequency reference
Frequency detection
ON
Time
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 Frequency Detection Level No
Setting range
0.0 to 400 (Hz) Unit of setting
0.1 Hz
(see note)
Changes during operation
Default setting 0.0
Note 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
ON ON
Time
84
Other Functions
Chapter 6-7
6-7-7 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.
n62
Setting range
0, 1
Note 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 No
Unit of setting
1
Changes during operation
Default setting 0
85
Other Functions
Chapter 6-7
Set Values
0
1
Value Description
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)
UP command
(S4)
DOWN command
(S5)
Output frequency
Upper limit
Time
Time
Time
Lower limit
Status
Frequency detection
Note Status U: UP (acceleration)
D: (deceleration)
U1: Frequency acceleration restricted by upper limit.
D1: Frequency deceleration restricted by lower limit.
Time
Time
The following ON/OFF combinations of UP and DOWN commands are possible.
S4 (UP command)
S5 (DOWN command)
ON OFF OFF ON
OFF ON OFF 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
---
Changes during operation
Default setting ---
---
Note 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
Chapter 6-7
88
CHAPTER 7
Communications
7-1 RS-422/485 Communications Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1-2 External Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1-4 Mouting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2-1 Setting the Communications Conditions. . . . . . . . . . . . . . . . . . . . . .
7-2-2 Operation Command Selection (n02) . . . . . . . . . . . . . . . . . . . . . . . .
7-2-3 Frequency Reference Input Selection (n03) . . . . . . . . . . . . . . . . . . .
7-2-4 Setting the Multi-function Inputs (n36 to n39) . . . . . . . . . . . . . . . . .
7-3 Message Communications Basic Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-4-1 Data Read (Function Code: 03 Hex) . . . . . . . . . . . . . . . . . . . . . . . . .
7-4-2 Data Write/Broadcast Data Write (Function Code: 10 Hex). . . . . . .
7-4-3 Loop-back Test (Function Code: 08 Hex). . . . . . . . . . . . . . . . . . . . .
89
RS-422/485 Communications Unit
Chapter 7-1
Note
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.
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.
7-1-2 External Dimensions
12 4 x 3.8 = 15.2
63 8 19 8
90
RS-422/485 Communications Unit
7-1-3 Names of Parts
Terminal block
Chapter 7-1
Terminating resistance switch
Terminal Block
1
S– S+
2
Terminating Resistance Switch
SW
OFF ON
Shield
3
R–
4
R+
5
Note Set the terminating resistance switch to ON to connect the terminating resistance.
7-1-4 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.
Note
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.)
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.
92
Inverter Settings
Chapter 7-2
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
Time-over Detection Selection
0 to 4
Register
Unit of setting
0144 Hex Changes during operation
1 Default setting
No
0
Set Values
0
Value Description
Detects a time-over and fatal error and coasts to a stop (See note 1.)
1
2
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.)
3
4
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
Frequency Reference/Display
Unit Selection
0 to 3
Register
Unit of setting
0145 Hex Changes during operation
No
1 Default setting 0
93
Inverter Settings
Chapter 7-2
Set Values
Value Description
2
3
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)
n70
Setting range
• 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.
RS-422A/485 Communications
Slave Address
00 to 32
Register
Unit of setting
0146 Hex Changes during operation
1 Default setting
No
0
Set Values
Value Description
00
01 to 32
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 Register
Setting range
RS-422A/485 Baud Rate
Selection
0 to 3 Unit of setting
0147 Hex Changes during operation
1 Default setting
No
2
2
3
0
1
Set Values
Value Description
2,400 bps
4,800 bps
9,600 bps
19,200 bps
94
Inverter Settings
Chapter 7-2
n72 RS-422A/485 Parity Selection Register 0148 Hex Changes during operation
1 Default setting
No
2 Setting range
0 to 2 Unit of setting
0
1
2
Set Values
Value Description
Even
Odd
No parity
Note
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.
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
Setting range
10 to 65 (ms) Unit of setting
0149 Hex Changes during operation
1 ms Default setting
No
10
Set Values 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 the RTS (request-to-send) communications control function.
• 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
Unit of setting
014A Hex Changes during operation
1 Default setting
No
0
Set Values
0
1
Value Description
Enabled
Disabled (Available to 1-to-1 RS-422A communication only)
95
Inverter Settings
Chapter 7-2
7-2-2 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
Setting range
0 to 2 Unit of setting
0102 Hex Changes during operation
1 Default setting
No
0
0
1
2
Set Values
Value 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
.
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
Unit of setting
0103 Hex Changes during operation
1 Default setting
No
0
4
6
2
3
0
1
Set Values
Value 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 RS-
422A/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
Chapter 7-2
7-2-4 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 RS-
422A/485 communications.
n36 Multi-function input 1 (S2) Register
Setting range
2 to 8, 10 to 22 Unit of setting
0124 Hex Changes during operation
1 Default setting
No
2 n37
Setting range
Multi-function input 2 (S3)
0, 2 to 8, 10 to 22
Register
Unit of setting
0125 Hex Changes during operation
1 Default setting
No
5 n38
Setting range n39
Setting range
Multi-function input 3 (S4)
2 to 8, 10 to 22
Multi-function input 4 (S5)
2 to 8, 10 to 22, 34, 35
Register
Unit of setting
0126 Hex Changes during operation
1 Default setting
No
3
Register
Unit of setting
0127 Hex Changes during operation
1 Default setting
No
6
97
Message Communications Basic Format
Chapter 7-3
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
Message data
(DSR message and response)
Slave address
1 byte
Message Interval
• The following format is used for message data communications.
• Message data consists of a Slave address, function code, communications data, and error check block.
Function code
1 byte
Communications data Error check block
2 bytes
• 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 DSR message from Master
24-bit (or 3-byte) standby period
Standby period set in n73
24-bit (3-byte) standby period
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
Function code
Communications data
Error check
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.
Note 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.
98
Message Communications Basic Format
Chapter 7-3
Slave Address
Note
• The Master can communicate with a maximum of 32 Slaves over RS-
422A/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.
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
08 Hex
10 Hex
Command name
Data read
Loop-back test
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
Error Check
Chapter 7-3
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
2
3
4
5
6
DSR Message and Response
Chapter 7-4
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
Note
• 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
.
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. Data
Function code (03 Hex)
Register No. of read start data
Number of registers of read data (max. 16)
8
101
DSR Message and Response
Response
Normal
Byte No.
6
7
8
9
2
3
4
5
Function code (03 Hex)
Number of bytes of attached data
Data of start register
Data of next register
Data of next register
: : n
Error
Byte No.
2 Function code (83 Hex)
Data
Data
Chapter 7-4
MS B
LSB
MSB
LSB
MSB
LSB
:
3
4
5
6
5
Note
Example of Data Read
When an error occurs, the MSB of the function code will be set to 1.
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. Data
8
Register No. of read start data
Number of registers of read data
Data example
(Hex)
02
03
00
20
00
04
45
F0
102
DSR Message and Response
Chapter 7-4
Response
Normal
Byte No.
6
7
8
9
3
4
5
10
11
Number of bytes of attached data
Data in register No. 0020
Data in register No. 0021
Data in register No. 0022
Data in register No. 0023
Data Data example
(Hex)
02
03
08
MS B 00
LSB 65
MSB 00
LSB 00
MSB 00
LSB 00
MSB 01
LSB F4
AF
82 13
Error
Byte No.
5
Data Data example
(Hex)
02
83
03
F1
31
7-4-2 Data Write/Broadcast Data Write (Function Code: 10 Hex)
Settings and Response
Note
• 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 .
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
DSR Message
Byte No.
6
7
8
9
2
3
4
5
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
10
11
12
13
Data of next register
Data of next register
: : n
Response
Normal
Byte No.
2
3
4
5
6
8
Error
Byte No.
2
Function code (10 Hex)
Register No. of write start data
Number of registers of write data
Function code (90 Hex)
Data
Data
Data
5
Chapter 7-4
MSB
LSB
MSB
LSB
MSB
LSB
:
MS B
LSB
MSB
LSB
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
3
4
5
6
3
4
5
6
7
8
9
10
11
DSR Message and Response
Example of Data Read
Chapter 7-4
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. Data
Register No. of write start data
Number of registers of write data
Data of start register
Data in register No. 0001
Data in register No. 0002
01
00
02
04
01
10
Data example
(Hex)
00
MSB 00
LSB 01
MSB 02
LSB 58
63
39 13
Response
Normal
Byte No. Data
Register No. of write start data
Number of registers of write data
Data example
(Hex)
01
10
00
01
00
02
10
08 8
Error
Byte No. Data
5
Data example
(Hex)
01
90
02
DC
C1
105
DSR Message and Response
Chapter 7-4
7-4-3 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. Data
2
3
4
5
6
8
Response
Normal
Byte No.
Function code (08 Hex)
Test data 1
Test data 2
2
3
4
5
6
8
Error
Byte No.
2
Function code (08 Hex)
Test data 1
Test data 2
Function code (88 Hex)
Data
Data
5
Note When an error occurs, the MSB of the function code will be set to 1.
106
DSR Message and Response
Chapter 7-4
3
4
5
6
3
4
5
6
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. Data
8
Test data 1
Test data 2
Data example
(Hex)
01
08
00
00
A5
37
DA
8D
Response
Normal
Byte No. Data
8
Test data 1
Test data 2
00
00
A5
37
Data example
(Hex)
01
08
DA
8D
Error
Byte No. Data
5
Data example
(Hex)
01
88
01
86
50
107
Enter Command
Chapter 7-5
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
Chapter 7-6
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
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
Chapter 7-7
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)
Register No. (Hex)
0001
0002
0003
RUN command
Frequency reference
V/f gain
Function
Read/Write
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.
---
0004 to 0008
0009
000A to 000F
Not used.
Inverter output
Not used.
Note 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 RUN command (1: RUN)
Function
2
3
External fault (External fault EF0)
Fault reset (1: Fault reset)
5
6
7
8
9 to 15
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
Multi-function contact output (1: ON)
Not used.
Function
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
0001
0002
0003 to 000F
RUN command
Frequency reference
Not used.
Description
---
Refer to the table below.
Set the frequency reference based on the maximum frequency as 30,000.
---
Note 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 RUN command (1: RUN)
Function
2 to 3
4
5
4 to 15
Not used.
External fault (1: External fault EF0)
Fault reset (1: Fault reset)
Not used.
7-7-2 Monitor Functions
Register No. (Hex)
0020 Status signal
Function
0021
0022
0023
0024
0025 to 0026
0027
0028
Fault status
Data link status
Frequency reference
Output frequency
Not used.
Output current
Output voltage
0029 to 002A
002B
002C
002D
002E to 0030
0031
0032 to 003C
003D
003E to 00FF
Not used.
Input terminal status
Inverter status 1
Output terminal status
Not used.
Main circuit DC voltage
Not used.
Communications error
Not used.
Description
Refer to the following corresponding table.
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
Register Number Allocations in Detail
0
1
2
Status Signal (Register 0020 Hex)
Bit No. Function
During RUN (1: During RUN)
Forward/reverse operation (1: Reverse operation)
Inverter ready (1: Ready)
4
5
6 to 15
Data setting error (1: Error)
Multi-function output (1: ON)
Not used.
Fault Status (Register 0021 Hex)
Bit No. Function
0 OC
1 OV
2 OL2
3 OH
Bit No.
8 F _
Function
9 OL1
Chapter 7-7
7 EF _ , STP 15 Not used.
Note When a fault results, the corresponding bit will be set to 1.
Data Link Status (Register 0022 Hex)
0
1 to 2
3
4
5 to 15
Bit No. 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
3
4
5 to 15
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)
Multi-function input terminal 3 (S1) (4: ON)
Multi-function input terminal 4 (S5) (1: ON)
Not used.
113
Register Number Allocations in Detail
5
6
7
8
9
10
11
0
1
2
3
4
Inverter Status 1 (Register 002C Hex)
Bit No. 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)
13 Fault retry (1: Fault retry)
15 Communications time-over: No normal communications for 2 s or more
(1: Communications time-over detecting)
Output Terminal Status (Register 002D Hex)
0
1 to 15
Bit No. Function
Multi-function contact output terminal MA (1: ON)
Not used.
Communications Error (Register 003D Hex)
Bit No.
0
1
CRC error (1: Error)
Data length error (1: Error)
Function
3
4
5
6
7 to 15
Parity error (1: Error)
Overrun error (1: Error)
Framing error (1: Error)
Communications time-over (1: Error)
Not used.
Chapter 7-7
114
Communications Error Codes
Chapter 7-8
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
01 Hex
02 Hex
03 Hex
21 Hex
22 Hex
Name
Function code error
Register number error The specified register number has not been registered. Check and correct the
An attempt was made to read the register of the Enter register number.
command.
Data number error The number of write or read registers is not within a range from 1 to 16 (0001 and 0010 Hex).
Check and correct the number of registers or the number of bytes.
The number of registers of the DSR message multiplied by two does not coincide with the number of bytes of the attached data.
Data setting error
Write mode error
Probable cause
The function code is set to a code other than 03, 08, or
10 Hex.
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.
Remedy
Check and correct the function code.
Check the display on the Digital Operator and correct the data.
Write the data after stopping the Inverter.
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).
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.
The Inverter processing data written received a DSR message to write data.
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.
A DSR message to a read-only register was received. Check and correct the register number.
115
Self-diagnostic Test
Chapter 7-9
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
8-1-1 Fault Detection (Fatal Error) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-1-2 Warning Detection (Nonfatal Error) . . . . . . . . . . . . . . . . . . . . . . . . .
8-2-2 Motor Fails to Operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2-3 Motor Rotates in the Wrong Direction . . . . . . . . . . . . . . . . . . . . . . .
8-2-4 Motor Outputs No Torque or Acceleration is Slow . . . . . . . . . . . . .
8-2-5 Motor Deceleration is Slow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2-7 Controller or AM Radio Receives Noise when Inverter is Started . .
8-2-8 Ground Fault Interrupter is Actuated when Inverter is Started . . . . .
8-2-9 Mechanical Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2-10 Motor Rotates after Output of Inverter is Turned Off. . . . . . . . . . . .
8-2-11 Detects OV when Motor Starts and Motor Stalls . . . . . . . . . . . . . . .
8-2-12 Output Frequency Does Not Reach Frequency Reference . . . . . . . .
8-2-13 Inverter Does Not Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
117
Protective and Diagnostic Functions
Chapter 8-1
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 name and meaning
%c
Fault display
%U uU1
Probable cause and remedy
Overcurrent (OC)
The Inverter output current is as high as or higher than 200% of the rated output current.
• A short-circuit or ground fault has occurred and at the
Inverter output.
→ Check and correct the motor power cable.
• 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.
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.).
Main circuit undervoltage (UV1)
The main circuit DC voltage has reached the undervoltage detection level (200 V DC for the
3G3JV-A2 _ , 160 V DC for the
3G3JV-AB _ , and 400 V DC for the
3G3JV-A4 _ ).
• 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.
• Power supply to the Inverter has phase loss, power input terminal screws are loose, or the power cable is disconnected.
→
Check the above and take necessary countermeasures.
• Incorrect power supply voltage
→
Make sure that the power supply voltage is within 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
Chapter 8-1
Fault display
%h
%l1
%l2
%l3 gf ef _
Fault name and meaning Probable cause and remedy
Radiation fin overheated (OH)
The temperature of the radiation fins of the Inverter has reached
110°C ± 10°C.
Motor overload (OL1)
The electric thermal relay actuated the motor overload protective function.
• 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.
• The cooling fan of the Inverter does not work.
→ Replace the cooling fan.
• The load is excessive.
→
Reduce the load.
→
Decrease the Inverter capacity.
• 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.
Inverter overload (OL2)
The electronic thermal relay has actuated the Inverter overload protective function.
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 2 or 4.
Ground fault (GF)
The ground fault current at the output of the Inverter has exceeded the rated output current of the Inverter.
External fault _ (EF _ )
An external fault has been input from a multi-function input. A multifunction input 1, 2, 3, or 4 set to 3 or 4 has operated. The EF number indicates the number of the corresponding input (S2 to S5).
• The motor protective time setting in n34 is short.
→
Set n34 to 8 (the default value).
• 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.
• The mechanical system is locked or has a failure.
→ Check the mechanical system and correct the cause of overtorque.
• The parameter settings were incorrect.
→ Adjust the n60 and n61 parameters according to the mechanical system. Increase the set values in n60 and n61.
• A ground fault has occurred at the Inverter output.
→ Check the connections between the Inverter and motor and reset the fault after correcting its cause.
• An external fault was input from a multi-function input.
→ Remove the cause of the external fault.
• The sequence is incorrect.
→ Check and change the external fault input sequence including the input timing and NO or NC contact.
119
Protective and Diagnostic Functions
Chapter 8-1
Fault display f00 f01 f04 f05 f07 ce stp
0ff
Fault name and meaning Probable cause and remedy
Digital Operator transmission fault 1 (F00)
An initial memory fault has been detected
Digital Operator transmission fault 2 (F01)
A ROM fault has been detected.
Initial memory fault (F04)
An error in the built-in EEPROM of the Inverter has been detected.
Analog-to-digital converter fault
(F05)
An analog-to-digital converter fault has been detected.
Digital Operator fault (F07)
An error in the built-in control circuit of the Digital Operator has been detected.
• The internal circuitry of the Inverter has a fault.
→ Turn the Inverter off and on.
→ Replace the Inverter if the same fault occurs again.
• The internal circuitry of the Inverter has a fault.
→ Turn the Inverter off and on.
→ Replace the Inverter if the same fault occurs again.
• The internal circuitry of the Inverter has a fault.
→ Initialize the Inverter with n01 set to 8 or 9 and turn the Inverter off and on.
→ Replace the Inverter if the same fault occurs again.
• The internal circuitry of the Inverter has a fault.
→ Turn the Inverter off and on.
→ Replace the Inverter if the same fault occurs again.
• The internal circuitry of the Digital Operator has a fault.
→
→
Turn the Digital Operator off and on.
Replace the Digital Operator if the same fault occurs again.
Communications time-over (CE)
Normal RS-422A/485 communications were not established within 2 s.
The Inverter will detect this error if n68 (RS-422A/485 communications time-over detection selection) is set to
0, 1, or 2.
• 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.
• 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.
Emergency stop (STP)
An emergency stop alarm is input to a multi-function input. (A multifunction input 1, 2, 3, or 4 set to 19 or 21 has operated.)
Power supply error
• Insufficient power supply voltage
• Control power supply fault
• Hardware fault
• 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.
• The sequence is incorrect.
→ Check and change the external fault input sequence including the input timing and NO or NC contact.
• No power supply is provided.
→ Check and correct the power supply wire and voltage.
• Terminal screws are loosened.
→ Check and tighten the terminal screws.
• The Inverter is damaged.
→ Replace the Inverter.
120
Protective and Diagnostic Functions
Chapter 8-1
8-1-2 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)
%l3
(flashing) ser
(flashing) bb
(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 _ ).
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.
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.
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.
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.
• 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.
• The mechanical system is locked or has a failure.
→ Check the mechanical system and correct the cause of overtorque.
• The parameter settings were incorrect.
→ Adjust the n60 and n61 parameters according to the mechanical system. Increase the set values in n60 and n61.
• A sequence error has occurred.
→ Check and adjust the local or remote selection sequence as multi-function input.
• 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
Chapter 8-1
Fault display ef
(flashing) stp
(flashing) fRn
(flashing) ce
%p1
(flashing)
%p2
(flashing)
%p3
(flashing)
%p4
(flashing)
%p5
(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.
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.
Communications time-over (CE)
Normal RS-422A/485 communications were not established within 2 s. The Inverter will detect this error if n68 (RS-422A/485 communications time-over detection selection) is set to 0, 1, or 2.
• The cooling fan in not in good condition.
→ Check and remove the foreign material or dust on the fan.
• The cooling fan is beyond repair.
→ Replace the fan.
• 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.
Operation error (OP _ )
(Parameter setting error)
• 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.
• 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.
122
Troubleshooting
Chapter 8-2
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.
The Digital Operator does not display anything.
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.
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.
Input in 2-wire sequence while 3-wire sequence is in effect and vice-versa.
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.
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.
The frequency reference is too low.
The Inverter is in local 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.
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 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
Chapter 8-2
The wiring on the Inverter control circuit terminals is incorrect.
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.
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.
124
Troubleshooting
Chapter 8-2
8-2-4 Motor Outputs No Torque or Acceleration is Slow
The stall prevention level during running is too low.
The stall prevention level during acceleration 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.
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.
8-2-5 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.
The ambient temperature is too high.
The withstand voltage between the phases of the motor is insufficient.
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 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.
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
Chapter 8-2
8-2-7 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 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.
126
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.
Make sure that the jump width settings in n49 through n50 for jump frequencies 1 and 2 and jump width in n51 are appropriate.
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 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
Malfunction Due to
Unwanted Current Path
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.
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.
Controller (Output unit)
Section A
Inverter (Control input)
S1 to S5
SC
GND
127
Maintenance and Inspection
Chapter 8-3
8-3 Maintenance and Inspection
Do not touch the Inverter terminals while the power is being supplied.
!
WARNING
!
WARNING
!
WARNING
!
WARNING
!
Caution
!
Caution
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.
Maintenance, inspection, or parts replacement must be performed by authorized personnel. Not doing so may result in electrical shock or injury.
Do not attempt to take the Unit apart or repair. Doing either of these may result in electrical shock or injury.
Carefully handle the Inverter because it uses semiconductor elements.
Careless handling may result in malfunction.
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
Periodic 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.
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
CIMR-J7AZ21P5 or 3G3JV-22P2
CIMR-J7AZ24P0
CIMR-J7AZB1P5
CIMR-J7AZ41P5 or CIMR-J7AZ42P2
CIMR-J7AZ44P0
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.
Replacing Cooling Fan of
108-mm-wide Inverter
Model
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.
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
9-2-3 RS-422/485 Communications Unit . . . . . . . . . . . . . . . . . . . . . . . . . .
9-2-6 Digital Operator Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-2-7 Digital Operator Connection Cable. . . . . . . . . . . . . . . . . . . . . . . . . .
9-2-9 DIN Track Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-3-1 EMC-compatible Noise Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
131
Inverter Specifications
Chapter 9-1
9-1 Inverter Specifications
3-phase
200-V AC models
Model CIMR-J´7AZ
Power supply
Rated voltage 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
–15% to 10%
±5%
21P5 22P2 24P0
0.4 0.9 1.6 2.7 4.3 5.9 9.3
13.0 18.0 28.1 45.1 72.8 94.8 149.1
0.5 0.5 0.8 0.9 1.3 1.5 2.1
Natural cooling Cooling fan
Singlephase
200-V AC models
Model CIMR-J7AZ
Power supply
Rated voltage and 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
Single-phase 200 to 240 V AC at 50/60 Hz
B1P5
–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 0.9 1.5 1.5 ---
Natural cooling Cooling fan
---
---
---
---
---
Max. applicable motor capacity (kW)
Output specifications
Rated output capacity (kVA)
Rated output current (A)
Rated output voltage (V)
Control characteristics
Max. output frequency
Harmonic-current countermeasures
Control method
Carrier frequency
Frequency control range
Frequency precision
(temperature characteristics)
Frequency setting resolution
Output frequency resolution
0.3 0.6 1.1 1.9 3.0 4.2 6.7
3-phase 200 to 240 V AC (according to the input voltage)
400 Hz parameter setting
DC reactor (option) connection possible
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
132
Inverter Specifications
Chapter 9-1
Control characteristics
Overload capacity
External frequency set signal
Acceleration/deceleration time
Braking torque
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 function
Environment
Voltage/frequency characteristics
Motor protection
Instantaneous overcurrent protection
Overload protection
Overvoltage protection
Undervoltage protection
Momentary power interruption compensation
(selection)
Cooling fin overheating
Grounding protection
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)
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.
Detects at 110°C ±10°C
Protection at rated output current level
Charge indicator (RUN indicator) Lit when the main circuit DC voltage is approximately 50 V or less.
Location Indoors (with no corrosive gas, oil spray, or metallic dust)
Ambient temperature
Ambient humidity
Operating: –10°C to 50°C
Operating: 95% max. (with no condensation)
Ambient temperature
Altitude
Insulation resistance
Vibration resistance
–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
Degree of protection Panel-mounting models: Conforms to IP20
3-phase
400-V AC models
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.
Model CIMR-J7AZ
Power supply
Rated voltage and frequency
Allowable voltage fluctuation
40P2
–15% to 10%
40P4 40P7
3-phase 380 to 460 V AC at 50/60 Hz
41P5 42P2 44P0
Allowable frequency fluctuation
Power supply capacity (kVA)
(See note 1.)
±5%
1.3 1.9 3.6 5.1 5.9 9.1
Heat radiation (W) (See note 2.) 23.1 30.1 54.9 75.7 83.0 117.9
Weight (kg) 1.0 1.1 1.5 1.5 1.5 2.1
Cooling method Natural cooling Cooling fan
133
Inverter Specifications
Chapter 9-1
Max. applicable motor capacity (kW)
Output specifications
Rated output capacity (kVA)
Rated output current (A)
Rated output voltage (V)
Control characteristics
Max. output frequency
Harmonic-current countermeasures
Control method
Carrier frequency
Frequency control range
Frequency precision
(temperature characteristics)
0.9 1.4 2.6 3.7 4.2 6.6
1.2 1.8 3.4 4.8 5.5 8.6
3-phase 380 to 460 V AC (according to the input voltage)
400 Hz parameter setting
DC reactor (option) connection possible
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)
Frequency setting resolution
Output frequency resolution
Overload capacity
External frequency set signal
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)
Acceleration/deceleration time 0.0 to 999 s (Independent acceleration and deceleration time settings:
2 types)
Braking torque
Voltage/frequency characteristics
Approx. 20% (Braking Resistor and Braking Unit cannot be connected.)
Set a user V/f pattern
Protective functions
Motor protection
Instantaneous overcurrent protection
Overload protection
Overvoltage protection
Undervoltage protection
Momentary power interruption compensation (selection)
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.
Environment
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.
Location
Ambient temperature
Indoors (with no corrosive gas, oil spray, or metallic dust)
Operating: –10°C to 50°C
Ambient humidity
Ambient temperature
Altitude
Insulation resistance
Vibration resistance
Degree of protection
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
Chapter 9-2
9-2 Specifications of Accessories
9-2-1 List of Accessories
Mounting Accessories
Name Model
Adapter Panel
(for J7AZ Series)
SI232J/J7 & SI232J/J7C
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.
RS-422/485 Communications
Unit
SI485/J7
Fan Unit FAN00106 _
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
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.
Digital Operator
(without adjuster)
JVOP-146
Digital Operator Case
(for 3G3IV-PJVOP140)
3G3IV-PEZZ08386A
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 JVOP-
140 in the Case allows the Inverter to mounted in a control panel, or operated by remote control.
Digital Operator Connection
Cable Inverters. Cable length: 1 m, 3 m.
DIN Track Mounting
Bracket
3G3IV-PEZZ08122 _ An adapter making it possible to easily mount the
Inverter to DIN tracks.
Recommendable Separate Accessories
Filter
Name Model
EMC-conforming Input Noise 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
Chapter 9-2
9-2-2 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
JVOP-146
JVOP-140 + 3G3IV
PEZZ08386A (Digital Operator Case)
Digital Operator Connection
Cable
3G3IV-PCN126 (1 m)
3G3IV-PCN326 (3 m)
Dimensions (mm)
SI232/J7 (Permanent)
SI232/J7C (Removeable)
136
Specifications of Accessories
Chapter 9-2
9-2-3 RS-422/485 Communications Unit
SI485/J7
Note
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.
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
3-phase 200 V AC
Single-phase 200 V AC
3-phase 400 V AC
Replacement Method
CIMR-J7AZ21P5/-22P2
CIMR-J7AZ24P0
CIMR-J7AZB1P5
CIMR-J7AZ41P5/-42P2
CIMR-J7AZ44P0
Refer to
8-3 Maintenance and Inspection
.
FAN001062
FAN001063
FAN001062
FAN001062
FAN001062
137
Specifications of Accessories
Chapter 9-2
9-2-5 Digital Operator
JVOP-140/JVOP-146
Note
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 (3G3IV-
PEZZ08386A). Without the Case, the Digital Operator’s connection cable cannot be wired. Using the Case also enables mounting to a control panel.
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.
JVOP-146
(without Adjuster)
3.6 dia
Four, 4.4-dia. mounting holes
Four depressions for
M4 bolts (Depth: 3.5)
138
Specifications of Accessories
Chapter 9-2
9-2-6 Digital Operator Case
3G3IV-PEZZ08386A
The Digital Operator Case (3G3IV-PEZZ08386A) is used to secure the JVOP-
140 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 Cable length
9-2-8 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
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
Rated current
(A)
Inductance
(mH)
5.4 8
18
3.2
3
28
5.7 11
12 6.3
139
Specifications of Accessories
Chapter 9-2
9-2-9 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
External Dimensions (mm)
3G3IV-PEZZ08122A 3G3IV-PEZZ08122B
DIN Track Mounting Bracket
3G3IV-PEZZ08122A
3G3IV-PEZZ08122B
3G3IV-PEZZ08122C
3G3IV-PEZZ08122A
3G3IV-PEZZ08122B
3G3IV-PEZZ08122B
3G3IV-PEZZ08122C
Four, M4 tap
3G3IV-PEZZ08122C
6
1.6
Four, M4 tap
Four, M4 tap
140
Specifications of Accessories
9-2-10 AC Reactor
Chapter 9-2
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 2
Current (A) Inductance (mH)
7.0
400-V Class
4.0
20 0.53
Max. applicable motor capacity (kW)
0.2 to 0.4 1.3
Current (A) Inductance (mH)
18.0
4.0
10 2.2
141
Option Specifications
Chapter 9-3
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-J7AZ-
20P1/20P2/20P4/20P7
21P5/22P2
24P0
Schaffner
Noise Filter for 3-phase 200 V AC Inverter models
Rasmi
3G3JV-PFI2010-SE 3G3JV-PFI2010-E
Rated current (A)
10 0.68
Weight (kg)
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-J7AZ-
B0P1/B0P2/B0P4
B0P7/B1P5
Schaffner
Noise Filter for single-phase 200 V AC Inverter models
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-J7AZSchaffner
Noise Filter for 3-phase 200 V AC Inverter models
Rasmi Rated current (A)
Schaffner Rasmi
A4002/A4004 3G3JV-PFI3005-SE 3G3JV-PFI3005-E
A4007/A4015/A4022 3G3JV-PFI3010-SE 3G3JV-PFI3010-E
A4037 3G3JV-PFI3020-SE 3G3JV-PFI3020-E
5
Weight (kg)
10 0.67
20 15
0.57
1.0
Connection Example
MCCBs Noise Filter Clamp core
3-phase 200 V AC or single-phase 200 V AC
3-phase 400 V AC
142
Option Specifications
External Dimensions
Filters
Chapter 9-3
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 82
B
50
C
169 111 50
169 71 45
169 111 50
169 111 50
169 111 50
174 144 50
Dimensions
D E
160 181 62
F G
5.3
H
M5 25
I
135 156 91
135 156 51
135 156 91
135 156 91
135 61
135 61
5.5
5.3
5.3
5.3
120 5
120 5
M5
M5
M5
M5
M5
M5
25
22
25
22
28
28
56
J
96
56
96
96
K
118
118
118
118
118
L
M14
M4
M4
M4
M4
128 118 M4
128 118 M4
Drive mounts
Output flexes
Rasmi model
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
W
50
50
50
45
50
50
50
50
H
194
169
174
169
169
169
169
174
L
Dimensions
X
181
156
161
156
156
156
156
161
62
91
120
51
91
91
91
120
Y Inverter fixing
M5
M5
M5
M5
M5
M5
M5
M5
143
Option Specifications
Chapter 9-3
144
CHAPTER 10
List of Parameters
145
List of Parameters
Chapter 10
List of Parameters
Parameter No.
(Register
No. (Hex)) n01
(0101) n02
(0102) n03
(0103) n04
(0104) n05
(0105) n06
(0106)
Parameter writeprohibit selection/ parameter initialization
Operation command selection
Frequency reference selection
Interrup-tion mode selection
Reverse rotationprohibit selection
STOP/
RE-SET Key function selection range setting setting during operation
Reference page
Used to prohibit parameters to be written, sets parameters, or change the monitor 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 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.
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)
Used to select the operation with the reverse command input.
0: Reverse enabled.
1: Reverse disabled.
0, 1, 6,
8, 9
1 1 No 5-2
0 to 2 1
0 to 4,
6
0, 1
0, 1
5-7
1 0 No 5-8
1
1
0
0
0
No
No
No
5-16
5-15
Used to select the stop method in remote 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.
0, 1 1 0 No 5-7
146
List of Parameters
Chapter 10
Parameter No.
(Register
No. (Hex)) n07
(0107) n08
(0108) n09
(0109) n10
(010A)
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 frequency setting
Used to enable the Enter Key for setting the frequency reference with the Increment and
Decrement Keys.
0: The value is entered with the Enter
Key pressed.
Maximum frequency
(FMAX)
1: The value is enabled when the value is input.
Used to set the V/f pattern as the basic characteristic of the Inverter with output voltage per frequency set.
Output voltage
Maximum voltage
(VMAX) range
0, 1
0, 1
50.0 to
400
1 to
255
(see note 2) setting
1
1
0.1 Hz
(see note 1)
1 V setting
0
0
60.0 No
200
(see note 2) during operation
No
No
Reference page
5-8
5-12
5-4
No 5-4 n11
(010B) n12
(010C)
Maximum voltage frequency (FA)
Frequency
(Hz)
Middle output frequency (FB)
Note Set the parameters so that the following condition will be satisfied.
n14 O 012 < n11 O n09
Note The value set in n13 will be ignored if parameters n14 and n12 are the same in value.
0.2 to
400
0.1 to
399
0.1 Hz
(see note 1)
60.0 No 5-4
0.1 Hz
(see note 1)
1.5 No 5-4 n13
(010D) n14
(010E) n15
(010F) n16
(0110) n17
(0111) n18
(0112) n19
(0113)
Middle output frequency voltage (VC)
1 to
255
(see note 2)
1 V 12 (see note 2)
No 5-4
Minimum output frequency
(FMIN)
0.1 to
10.0
0.1 Hz 1.5 No 5-4
Minimum output frequency voltage
(VMIN)
Accelera-tion time 1
1 to 50
(see note 2)
Decelera-tion time 1
Accelera-tion time 2
Decelera-tion time 2
Acceleration time: The time required to go from 0% to 100% of the maximum 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)
0.0 to
999
1 V
0.1 s
12.0
(see note 2)
10.0
No 5-4
Yes
10.0 Yes
10.0 Yes
10.0 Yes
5-13
5-13
5-13
5-13
147
List of Parameters
Chapter 10
Parameter No.
(Register
No. (Hex)) 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) n30
(011E) n31
(011F)
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
Frequency reference upper limit
Frequency reference lower limit range
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
0 to 3
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.
0.0 to max. frequency
1
0.1 Hz
(see note 1)
0
6.0
0.0
0.0
0.0
0.0
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.
0 to
110
0 to
110 setting setting during operation
Reference page
1%
1%
0.0
0.0
0.0
6.0
100
0
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
5-14
5-10
5-10
5-10
5-10
5-10
5-10
5-10
5-11
5-11
5-9
5-9 n32
(0120)
Rated motor current
5-2 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.
0.0 to
120% of rated output current of the
.
Inverter
0.1 A Varies with the capacity.
No
148
List of Parameters
Chapter 10
Parameter No.
(Register
No. (Hex)) n33
(0121) n34
(0122) n35
(0123) n36
(0124)
Motor protection characteristics
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.
range
0 to 2 setting
1 setting
0
Motor protective time setting
Used to set the electric thermal characteristics of the motor to be connected 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 operation function
1 to 60 1 min 8
0, 1 1 0 Used to operate the Cooling Fan of the
Inverter while the Inverter is turned on or 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 input 1 (Input terminal S2)
2 during operation
No
No
No.
No
Reference page
6-14
6-14
6-14
5-17 n37
(0125) n38
(0126)
Multi-function input 2 (input terminal S3)
Multi-function input 3 (Input terminal S4)
Used to select the function of multi-function input terminals S2 through S5.
Set value
Function Description
0 Forward/
Reverse rotation command
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 whenn OFF)
S3: Forward/Reverse rotation command
(OFF: Forward;
ON: Reverse)
2 to 8,
10 to
22
0, 2 to
8, 10 to
22
2 to 8,
10 to
22
1
1
1
5
3
No
No
5-17
5-17
149
List of Parameters
Chapter 10
Parameter No.
(Register
No. (Hex)) n39
(0127)
Multi-function input 4 (Input terminal S5)
2
3
4
5
6
7
8
10
11
12
13
14
15
16
17 range setting setting during operation
Reference page
6 No 5-17 Reverse/
Stop
Reverse rotation command in 2-wire sequence
(Reversed with the terminal turned ON)
External fault (NO)
External fault (NC)
Acceleration/Decelerlation time changeover
ON: External fault
(FP _ detection: _ is a terminal number)
OFF: External fault
(EF _ detection: _ is a terminal number)
Fault reset ON: Fault reset
(disabled while RUN command is input)
Multi-step speed reference 1
Multi-step speed reference 2
Multi-step speed reference 3
Signals to select freqency references 1 through 8.
Refer to
the relationship between multi-step speed references and frequency references.
Inching frequency command
ON: Inching frequency command
(taking precedence over the multi-step speed reference)
ON: Acceleration time
2 and deceleration time 2 are selected.
2 to 8,
10 to
22, 34,
35
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: 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
Acceleration/Deceleration prohibit command
ON: Acceleration/
Deceleration is on hold (running at parameter frequency)
Local or remote selection
ON: Local mode
(operated with the
Digital Operator)
1
150
List of Parameters
Chapter 10
Parameter No.
(Register
No. (Hex)) n39
(0127)
Multi-function input 4 (input terminal S5)
18
19
20
21
22
34
35 range setting setting during operation
Reference page
6 No 5-17 Communications or remote selection
Emergency stop fault
(NO)
Emergency stop alarm
(NO)
Emergency stop fault
(NC)
Emergency stop alarm
(NC)
Up or down command
Selfdiagnostic test
ON: RS-422A/485 communications input is enabled.
OFF: The settings of n02 and n03 are enabled.
2 to 8,
10 to
22, 34,
35
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)
1
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
Chapter 10
Parameter No.
(Register
No. (Hex)) n40
(0128)
Multi-function output
(MA/MB and MC output terminals)
Used to select the functions of multi-function output terminals.
Set value
0
Function Description
Fault output ON: Fault output
(with protective function working) range
0 to 7,
10 to
17
1 setting setting during operation
Reference page
1 No 5-20 progress progress
3 detection ´
Idling detection (with frequency reference coinciding with output frequency)
ON: Idling (at less than min. output frequency) detection 1 P frequency detection level (n58) detection 2 O frequency detection level (n58) being monitored
(NO-contact output) following parameter conditions is satisfied. n59: Overtorque detection function
7 Overture selection being monitored
(NC-contact output) n60: Overtorque detection level n61: Overtorque detection time
NO contact: ON with overtorque being detected
NC contact: OFF with overtorque being detected
9 detected
(Nonfatal error being detected) in progress progress (in operation with output shut-off)
12 RUN mode ON: Local mode (with the Digital Operator)
13 Inverter ready
ON: Inverter ready to operate (with no fault detected)
14 Fault retry ON: Fault retry progress
ON: Undervoltage being monitored
152
List of Parameters
Chapter 10
Parameter No.
(Register
No. (Hex)) n40
(0128) n41
(0129) n42
(012A) n43
(012B)
Multi-function output
(MA/MB and MC output terminals) reverse direction
17 Speed search in progress
Frequency reference gain
Frequency reference bias
Analog frequency reference time reverse direction
ON: Speed search in progress
Used to the input characteristics of analog frequency references.
Gain: The frequency of maximum analog input (10 V or 20 mA) in percentage based on the maximum frequency as 100%.
Bias: The frequency of minimum analog input (0 V or 4 mA) in percentage based on the maximum frequency as 100%.
n44
(012C)
Analog monitor output
Used to set the output frequency or current 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) range
0 to 7,
10 to
17
0 to
255
–99 to
99
0.00 to
2.00
0, 1 setting setting during operation
1
1%
1%
1
1
100
0
0.01 s 0.10
0
No
Yes
Yes
No
No
Reference page
5-20
5-9
5-9
5-10
5-22 n45
(012D) n46
(012E)
Analog monitor output gain
Used to set the output characteristics of analog monitor output.
Carrier frequency selection
Used to set the carrier frequency.
Note The default setting does not need and changes in normal operation.
Note Refer to
for details.
0.00 to
2.00
1 to 4,
7 to 9
0.01
1
1.00
Varies with the capacit y
Yes
No
5-22
6-2 n47
(012F)
0 No 6-15 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 n48
(0130)
Fault retry Used to set the number of times the Inverter is reset and restarted automatically in the case the Inverter has an overvoltage fault, overcurrent fault, or ground fault.
0 to 10 1 0 No 6-15
6-16 n49
(0131)
N50
(0132) n51
(0133)
Jump frequency 1
Jump frequency 2
Used to set the frequency jump function.
Output frequency n51
0.0 to
400
0.1 Hz
(see note 1)
0.0
0.0 to
400
0.1 Hz
(see note 1)
0.0
Jump width
Frequency reference n50 n49
Note These values must satisfy the following condition: n49 P n50
0.0 to
25.5
0.1 Hz 0.0
No
No
No
6-16
6-16
153
List of Parameters
Chapter 10
Parameter No.
(Register
No. (Hex)) n52
(0134)
DC control current n53
(0135) n54
(0136) n55
(0137) n56
(0138) n57
(0139) n58
(013A) n59
(013B)
060
(013C)
061
(013D) range setting setting during operation
Interruption
DC control time
Startup DC control time
Used to impose DC on the induction motor for braking control.
Set the DC braking current in percentage based on the rated current of the Inverter as
100%.
0 to
100
0.0 to
25.5
Output frequency
Minimum output frequency
(n14) n54
Time n53
0.0 to
25.5
1%
0.1 s
0.1 s
50
0.5
0.0
Stall prevention during deceleration
Stall prevention level during acceleration
Stall prevention leven during operation
Frequency detection level
Overtorque detection function selection
Overtorque detection level
Overtorque detection time
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 acceleration of the motor automatically for stall prevention during acceleration.
Set the level in percentage based on the rated current of the Inverter as 100%.
0, 1
30 to
200
1
1%
0
170
Used to select a function to reduce the output frequency of the Inverter automatically for stall prevention during operation.
Set the level in percentage based on the rated current of the Inverter as 100%.
Used to set the frequency to be detected.
Note The parameter n40 for multi-function output must be set for the output of frequency detection levels 1 and 2.
Used to enable or disable overtorque detection and select the processing method after overtorque detection.
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)
Used to set overtorque detection level.
Set the level in percentage based on the rated current of the Inverter as 100%.
30 to
200
0.0 to
400
30 to
200
Used to set the detection time of overtorque 0.1 to
10.0
1%
0.1 Hz
0 to 4 1
1%
0.1 s
160
0.0
0
160
0.1
No
No
No
No
No
No
No
No
No
No
Reference page
6-5
6-5
6-5
6-6
6-7
6-8
6-18
6-9
6-9
6-10
154
List of Parameters
Chapter 10
Parameter No.
(Register
No. (Hex))
062
(013E) n63
(013F) n64
(0140) n65
(0141) n66
(0142) n67
(0143) n68
(0141)
(See note
3.)
UP/DOWN command frequency memory
Torque compensation gain
Motor rated slip
Motor no-load current
Slip compensation gain
Slip compensation time constant
RS-422A/485 communications timeover detection selection
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.
range
0, 1 setting
1 setting
0
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.
0.0 to
2.5
0.0 to
20.0
0.1
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.
0 to 99
0.0 to
2.5
Used for the response speed of the slip compensation function.
Note The default setting does not need any changes in normal operation
0.0 to
25.5
Used to set whether a communications timeover (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.
1%
0.1
0.1 s
0 to 4 1
1.0
0.1 Hz Varies with the capacity.
Varies with the capacity.
0.0
2.0
0 during operation
No
Yes
Yes
No
Yes
No
No
Reference page
6-19
6-11
6-12
6-12
6-12
6-12
7-5
155
List of Parameters
Chapter 10
Parameter No.
(Register
No. (Hex)) n69
(0145)
(See note
3.) n70
(0146)
(See note
3.) n71
(0147)
(See note
3.) n72
(0148)
(See note
3.)
RS-422A/485 communications frequency reference/ display unit selection
RS-422A/485 communications Slave address
RS-422A/485 baud rate selection
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 range
0 to 3
00 to
32
0 to 3 setting
1
1 setting
0
2
RS-422A/485 parity selection
Used to set the parity for communications.
0: Even parity
1: Odd parity
2: No parity
RS-422A/485 send wait time
Used to set the waiting period for returning a response after the DSR (data-send-request) mes-sage is received from the Master.
0 to 2 1
10 to
65
1 ms
0
10 during operation
No
No
No
No
Reference page
7-5
7-6
7-7
7-7 n73
(0149)
(See note
3.) n74
(014A)
(See note
3.) n75
(014B)
RS-422A/485
RTS control selection
Low-speed carrier frequency reduction selec-tion
Select whether or not to enable the RTS
(request-to-send) communications control function.
0, 1 1 0 No 7-7 n76
(014C)
(See note
3.) n77
(014D)
(See note
3.)
Parameter copy and verify function
Parameter read prohibit selection
Used to select a function to reduce the 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 the parameter between the memory of the
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.
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.)
0.1 1 0 No rdy to
Sno
0, 1
---
1 rdy No
0 No
6-4
---
---
156
List of Parameters
Parameter No.
(Register
No. (Hex)) n78
(014E)
Error log
Chapter 10
Used to display the latest error recorded.
range setting setting during operation
Reference page
--------6-21 n79
(014F)
Software number
Display
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
Chapter 10
158
CHAPTER 11
Using the Inverter for a Motor
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)
Torque (%)
100
80
70
60
50
Continuous
High-speed Operation
Torque Characteristics
Vibration
Noise
0 3 10 20
Frequency (Hz)
6 0
When using the motor at high-speed (60 Hz or more), problems may arise in dynamic balance and bearing durability.
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.
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 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).
160
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
Explosion-proof 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.
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
Synchronous Motor
Single-phase Motor
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.
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.
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
Revision History
Chapter 11
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
01
Date
February 2006
Revision code
The following table outlines the changes made to the manual during each revision. Page numbers refer to the previous version.
Revised content
Original production
162
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
Manual No.
I63-EN-01
VS mini J7
Compact General Purpose Inverter
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