Fuji Electric Frenic Mega Series User manual

FRENICMultiユーザーズマニュアルEC■M■Y■K■
背厚18.5mm
MEH278b
USER'S MANUAL
Fuji Electric FA Components & Systems Co., Ltd.
Mitsui Sumitomo Bank Ningyo-cho Bldg.,
5-7, Nihonbashi Odemma-cho, Chuo-ku, Tokyo 103-0011, Japan
Phone: [phone] Fax: [phone]
Information in this manual is subject to change without notice. Printed in Japan 2008-3 (F08a/F07) CM 10 FIS

High Performance, Multifunction Inverter
User's Manual

Copyright © 2007-2009 Fuji Electric Systems Co., Ltd.
All rights reserved.
No part of this publication may be reproduced or copied without prior written permission from Fuji Electric
Systems Co., Ltd.
All products and company names mentioned in this manual are trademarks or registered trademarks of their
respective holders.
The information contained herein is subject to change without prior notice for improvement.

i
Preface
This manual provides all the information on the FRENIC-MEGA series of inverters including its operating
procedure, operation modes, and selection of peripheral equipment. Carefully read this manual for proper use.
Incorrect handling of the inverter may prevent the inverter and/or related equipment from operating correctly,
shorten their lives, or cause problems.
The table below lists the other materials related to the use of the FRENIC-MEGA. Read them in conjunction
with this manual as necessary.
Name Material No. Description
Catalog MEH655
Product scope, features, specifications, external
drawings, and options of the product
Instruction Manual
INR-SI47-1183-E
INR-SI47-1134-E
INR-SI47-1223-E
INR-SI47-1135-E
Acceptance inspection, mounting & wiring of the
inverter, operation using the keypad, running the motor
for a test, troubleshooting, and maintenance and
inspection
RS-485
Communication
User's Manual
MEH448
Overview of functions implemented by using
FRENIC-MEGA RS-485 communications facility, its
communications specifications, Modbus RTU/Fuji
general-purpose inverter protocol and functions, and
related data formats
The materials are subject to change without notice. Be sure to obtain the latest editions for use.
Guideline for Suppressing Harmonics in Home Electric and General-purpose
Appliances
Our three-phase, 200 V class series inverters of 3.7 kW or less (FRENIC-MEGA series) were the products of
which were restricted by the "Guideline for Suppressing Harmonics in Home Electric and General-purpose
Appliances" (established in September 1994 and revised in October 1999) issued by the Ministry of
Economy, Trade and Industry.
The above restriction, however, was lifted when the Guideline was revised in January 2004. Since then, the
inverter makers have individually imposed voluntary restrictions on the harmonics of their products.
We, as before, recommend that you connect a reactor (for suppressing harmonics) to your inverter. As a
reactor, select a "DC REACTOR" introduced in this manual. For use of the other reactor, please inquire of us
about detailed specifications.
Japanese Guideline for Suppressing Harmonics by Customers Receiving
High Voltage or Special High Voltage
Refer to this manual, Appendix B for details on this guideline.

ii
Safety precautions
Read this manual and the FRENIC-MEGA Instruction Manual (that comes with the product) thoroughly
before proceeding with installation, connections (wiring), operation, or maintenance and inspection. Ensure
you have sound knowledge of the product and familiarize yourself with all safety information and
precautions before proceeding to operate the inverter.
Safety precautions are classified into the following two categories in this manual.
Failure to heed the information indicated by this symbol may lead to
dangerous conditions, possibly resulting in death or serious bodily injuries.
Failure to heed the information indicated by this symbol may lead to
dangerous conditions, possibly resulting in minor or light bodily injuries
and/or substantial property damage.
Failure to heed the information contained under the CAUTION title can also result in serious consequences.
These safety precautions are of utmost importance and must be observed at all times.
This product is not designed for use in appliances and machinery on which lives depend. Consult your Fuji
Electric representative before considering the FRENIC-MEGA series of inverters for equipment and
machinery related to nuclear power control, aerospace uses, medical uses or transportation. When the
product is to be used with any machinery or equipment on which lives depend or with machinery or
equipment which could cause serious loss or damage should this product malfunction or fail, ensure that
appropriate safety devices and/or equipment are installed.

iii
How this manual is organized
This manual contains Chapters 1 through 9, Appendices, Glossary and Index.
Chapter 1 INTRODUCTION TO FRENIC-MEGA
This chapter describes the features and control system of the FRENIC-MEGA series and the recommended
configuration for the inverter and peripheral equipment.
Chapter 2 SPECIFICATIONS
This chapter describes specifications of the output ratings, control system, and terminal functions for the
FRENIC-MEGA series of inverters. It also provides descriptions of the operating and storage environment,
product warranty, precautions for use, external dimensions, examples of basic connection diagrams, and
details of the protective functions.
Chapter 3 SELECTING OPTIMAL MOTOR AND INVERTER CAPACITIES
This chapter provides you with information about the inverter output torque characteristics, selection
procedure, and equations for calculating capacities to help you select optimal motor and inverter models. It
also helps you select braking resistors, HD/MD/LD drive mode, and motor drive control.
Chapter 4 SELECTING PERIPHERAL EQUIPMENT
This chapter describes how to use a range of peripheral equipment and options, FRENIC-MEGA's
configuration with them, and requirements and precautions for selecting wires and crimp terminals.
Chapter 5 FUNCTION CODES
This chapter contains overview tables of 12 groups of function codes available for the FRENIC-MEGA series
of inverters, function code index by purpose, and details of function codes.
Chapter 6 BLOCK DIAGRAMS FOR CONTROL LOGIC
This chapter provides the main block diagrams for the control logic of the FRENIC-MEGA series of
inverters.
Chapter 7 KEYPAD FUNCTIONS (OPERATING WITH THE KEYPAD)
This chapter describes the names and functions of the keypad and inverter operation using the keypad. The
inverter features three operation modes (Running, Programming and Alarm modes) which enable you to run
and stop the motor, monitor running status, set function code data, display running information required for
maintenance, and display alarm data.
Chapter 8 RUNNING THROUGH RS-485 COMMUNICATION
This chapter describes an overview of inverter operation through the RS-485 communications facility. Refer
to the RS-485 Communication User's Manual (MEH448) for details.
Chapter 9 TROUBLESHOOTING
This chapter describes troubleshooting procedures to be followed when the inverter malfunctions or detects
an alarm or a light alarm condition. In this chapter, first check whether any alarm code or the "light alarm"
indication (
l-al ) is displayed or not, and then proceed to the troubleshooting items.
Appendices
Glossary
Index

iv
Icons
The following icons are used throughout this manual.
This icon indicates information which, if not heeded, can result in the inverter not operating to
full efficiency, as well as information concerning incorrect operations and settings which can
result in accidents.
This icon indicates information that can prove handy when performing certain settings o
r
operations.
This icon indicates a reference to more detailed information.

v
CONTENTS
Chapter 1 INTRODUCTION TO FRENIC-MEGA
1.1 Features..................................................................................................................................................... 1-1
1.2 Control System ....................................................................................................................................... 1-12
1.2.1 Theory of inverter ............................................................................................................................. 1-12
1.2.2 Motor drive controls.......................................................................................................................... 1-13
1.3 External View and Terminal Blocks ....................................................................................................... 1-14
1.4 Recommended Configuration ................................................................................................................. 1-16
Chapter 2 SPECIFICATIONS
2.1 Standard Model 1 (Basic Type)................................................................................................................. 2-1
2.1.1 Three-phase 200 V class series (HD- and LD-mode inverters)........................................................... 2-1
2.1.2 Three-phase 400 V class series (HD-, LD-, and MD-mode inverters) ................................................ 2-2
2.2 Standard Model 2 (EMC Filter Built-in Type).......................................................................................... 2-3
2.2.1 Three-phase 200 V class series (HD- and LD-mode inverters)........................................................... 2-3
2.2.2 Three-phase 400 V class series (HD-, LD-, and MD-mode inverters) ................................................ 2-4
2.3 Common Specifications............................................................................................................................ 2-5
2.4 Terminal Specifications .......................................................................................................................... 2-12
2.4.1 Terminal functions ............................................................................................................................ 2-12
2.4.2 Setting up the slide switches ............................................................................................................. 2-22
2.4.3 Terminal arrangement diagram and screw specifications.................................................................. 2-24
2.4.3.1 Main circuit terminals ............................................................................................................... 2-24
2.4.3.2 Control circuit terminals (Common to all inverter types) ......................................................... 2-27
2.5 Operating Environment and Storage Environment ................................................................................. 2-28
2.5.1 Operating environment...................................................................................................................... 2-28
2.5.2 Storage environment ......................................................................................................................... 2-29
2.5.2.1 Temporary storage..................................................................................................................... 2-29
2.5.2.2 Long-term storage ..................................................................................................................... 2-29
2.6 Precautions for Using Inverters .............................................................................................................. 2-30
2.6.1 Precautions in introducing inverters.................................................................................................. 2-30
2.6.2 Precautions in running inverters........................................................................................................ 2-35
2.6.3 Precautions in using special motors .................................................................................................. 2-35
2.7 External Dimensions............................................................................................................................... 2-37
2.7.1 Standard models ................................................................................................................................ 2-37
2.7.2 Keypad .............................................................................................................................................. 2-43
2.8 Connection Diagrams ............................................................................................................................. 2-44
2.8.1 Running a standard motor ................................................................................................................. 2-44
2.8.2 Running a Fuji motor exclusively designed for vector control ......................................................... 2-46
2.9 Protective Functions ............................................................................................................................... 2-48
Chapter 3 SELECTING OPTIMAL MOTOR AND INVERTER CAPACITIES
3.1 Selecting Motors and Inverters ................................................................................................................. 3-1
3.1.1 Motor output torque characteristics..................................................................................................... 3-1
3.1.2 Selection procedure............................................................................................................................. 3-4
3.1.3 Equations for selections ...................................................................................................................... 3-7
3.1.3.1 Load torque during constant speed running ................................................................................ 3-7
3.1.3.2 Acceleration and deceleration time calculation........................................................................... 3-9
3.1.3.3 Heat energy calculation of braking resistor............................................................................... 3-14
3.1.3.4 Calculating the RMS rating of the motor .................................................................................. 3-15
3.2 Selecting a Braking Resistor................................................................................................................... 3-16
3.2.1 Selection procedure........................................................................................................................... 3-16
3.2.2 Notes on selection ............................................................................................................................. 3-16
3.3 Selecting an Inverter Drive Mode........................................................................................................... 3-17
3.3.1 Precaution in selecting the inverter drive mode between HD, MD, and LD modes.......................... 3-17

vi
3.3.2 Guideline for selecting inverter drive mode and capacity................................................................. 3-18
3.4 Selecting a Motor Drive Control............................................................................................................. 3-19
3.4.1 Features of motor drive controls ....................................................................................................... 3-19
3.4.2 Selecting a Motor Drive Control by Purpose .................................................................................... 3-24
Chapter 4 SELECTING PERIPHERAL EQUIPMENT
4.1 Configuring the FRENIC-MEGA............................................................................................................. 4-1
4.2 Selecting Wires and Crimp Terminals....................................................................................................... 4-2
4.2.1 Recommended wires ........................................................................................................................... 4-6
4.3 Peripheral Equipment ............................................................................................................................. 4-14
4.3.1 Molded case circuit breaker (MCCB), residual-current-operated protective device (RCD)/earth
leakage circuit breaker (ELCB) and magnetic contactor (MC)......................................................... 4-14
4.3.2 Surge killers for L-load ..................................................................................................................... 4-19
4.3.3 Arresters............................................................................................................................................ 4-20
4.3.4 Surge absorbers ................................................................................................................................. 4-21
4.3.5 Filtering capacitors suppressing AM radio band noises .................................................................... 4-22
4.4 Selecting Options.................................................................................................................................... 4-23
4.4.1 Peripheral equipment options............................................................................................................ 4-23
4.4.1.1 Braking resistor (DBR) and braking unit .................................................................................. 4-23
4.4.1.2 Power regenerative PWM converter, RHC series ..................................................................... 4-30
4.4.1.3 DC reactors (DCRs) .................................................................................................................. 4-44
4.4.1.4 AC reactors (ACRs) .................................................................................................................. 4-49
4.4.1.5 Surge suppression unit (SSU).................................................................................................... 4-54
4.4.1.6 Output circuit filters (OFLs)...................................................................................................... 4-55
4.4.1.7 Zero-phase reactor for reducing radio noise (ACL) .................................................................. 4-58
4.4.1.8 IP40 kit (P40G1-oo).................................................................................................................. 4-59
4.4.2 Options for operation and communication........................................................................................ 4-61
4.4.2.1 External frequency command potentiometer............................................................................. 4-61
4.4.2.2 Multi-function keypad (TP-G1-J1, TP-G1-C1)......................................................................... 4-62
4.4.2.3 Extension cable for remote operation........................................................................................ 4-63
4.4.2.4 Inverter support loader software................................................................................................ 4-64
4.4.2.5 PG interface card (OPC-G1-PG)............................................................................................... 4-65
4.4.2.6 PG interface (5 V line driver) card (OPC-G1-PG2) .................................................................. 4-68
4.4.2.7 Relay output interface card (OPC-G1-RY) ............................................................................... 4-72
4.4.2.8 Digital input interface card (OPC-G1-DI)................................................................................. 4-74
4.4.2.9 Digital output interface card (OPC-G1-DO) ............................................................................. 4-77
4.4.2.10 Analog interface card (OPC-G1-AIO) ...................................................................................... 4-79
4.4.2.11 T-Link communications card (OPC-G1-TL) ............................................................................. 4-84
4.4.2.12 SX-bus communications card (OPC-G1-SX)............................................................................ 4-87
4.4.2.13 CC-Link communications card (OPC-G1-CCL)....................................................................... 4-90
4.4.2.14 PROFIBUS-DP communications card (OPC-G1-PDP) ............................................................ 4-92
4.4.2.15 DeviceNet communications card (OPC-G1-DEV).................................................................... 4-95
4.4.2.16 CANopen communications card (OPC-G1-COP)..................................................................... 4-98
4.4.3 Option cards for operation and communication .............................................................................. 4-100
4.4.3.1 About option cards for operation and communication ............................................................ 4-100
4.4.4 Meter options .................................................................................................................................. 4-101
4.4.4.1 Frequency meters .................................................................................................................... 4-101
Chapter 5 FUNCTION CODES
5.1 Overview of Function Codes .................................................................................................................... 5-1
5.2 Function Code Tables ............................................................................................................................... 5-2
5.3 Function Code Index by Purpose............................................................................................................ 5-31
5.3.1 Configuring the minimal requirements for the inverter to just run the motor ................................... 5-31
5.3.2 Setting up the frequency.................................................................................................................... 5-31
5.3.2.1 Frequency setting from the keypad ........................................................................................... 5-31
5.3.2.2 Frequency setting by analog input............................................................................................. 5-32
5.3.2.3 Other frequency settings............................................................................................................ 5-32

vii
5.3.3 Entering a run command ................................................................................................................... 5-33
5.3.4 Starting/stopping the motor............................................................................................................... 5-34
5.3.5 Specifying the acceleration/deceleration (time, mode, and pattern).................................................. 5-34
5.3.6 Adjusting the running performance................................................................................................... 5-35
5.3.7 Controlling the motor........................................................................................................................ 5-36
5.3.7.1 Motor drive control to be selected............................................................................................. 5-36
5.3.7.2 Motor parameters to be set up ................................................................................................... 5-37
5.3.8 Setting up I/O terminals .................................................................................................................... 5-38
5.3.9 Outputting monitored data ................................................................................................................ 5-38
5.3.10 Keeping on running the motor .......................................................................................................... 5-39
5.3.11 Outputting status signals ................................................................................................................... 5-40
5.3.12 Running in various operation modes................................................................................................. 5-41
5.3.13 Setting up controls suited for individual applications ....................................................................... 5-42
5.3.13.1 Droop control ............................................................................................................................ 5-42
5.3.13.2 PID process control ................................................................................................................... 5-42
5.3.13.3 PID dancer control .................................................................................................................... 5-44
5.3.14 Customizing the keypad.................................................................................................................... 5-46
5.3.15 Controlling the inverter via communications line ............................................................................. 5-47
5.3.16 Activating the protective functions ................................................................................................... 5-48
5.3.16.1 Protection of machinery with limiters ....................................................................................... 5-48
5.3.16.2 Protection of motors .................................................................................................................. 5-48
5.3.16.3 Using other protective and safety functions .............................................................................. 5-49
5.3.17 Maintenance...................................................................................................................................... 5-51
5.3.17.1 Maintenance of inverters........................................................................................................... 5-51
5.3.17.2 Maintenance of machinery ........................................................................................................ 5-51
5.4 Details of Function Codes....................................................................................................................... 5-52
5.4.1 F codes (Fundamental functions) ...................................................................................................... 5-52
5.4.2 E codes (Extension terminal functions)........................................................................................... 5-102
5.4.3 C codes (Control functions) ............................................................................................................ 5-139
5.4.4 P codes (Motor parameters) ............................................................................................................ 5-144
5.4.5 H codes (High performance functions) ........................................................................................... 5-149
5.4.6 A codes (Motor 2 parameters) b codes (Motor 3 parameters) r codes (Motor 4 parameters).......... 5-177
5.4.7 J codes (Application functions 1).................................................................................................... 5-180
5.4.8 d codes (Application functions 2) ................................................................................................... 5-199
5.4.9 y codes (Link functions).................................................................................................................. 5-205
Chapter 6 BLOCK DIAGRAMS FOR CONTROL LOGIC
6.1 Symbols Used in Block Diagrams and their Meanings ............................................................................ 6-1
6.2 Drive Frequency Command Block ........................................................................................................... 6-2
6.3 Drive Command Block ............................................................................................................................. 6-4
6.4 Control Block............................................................................................................................................ 6-6
6.4.1 V/f control........................................................................................................................................... 6-6
6.4.2 Vector control with/without speed sensor ........................................................................................... 6-8
6.5 PID Process Control Block..................................................................................................................... 6-10
6.6 PID Dancer Control Block...................................................................................................................... 6-12
6.7 FMA/FMP Output Selector..................................................................................................................... 6-14
Chapter 7 KEYPAD FUNCTIONS (OPERATING WITH THE KEYPAD)
7.1 LED Monitor, Keys and LED Indicators on the Keypad ..........................................................................7-1
7.2 Overview of Operation Modes ................................................................................................................. 7-4
7.3 Running Mode .......................................................................................................................................... 7-6
7.3.1 Monitoring the running status ............................................................................................................. 7-6
7.3.2 Monitoring light alarms....................................................................................................................... 7-8
7.3.3 Setting up frequency and PID commands ........................................................................................... 7-9
7.3.4 Running/stopping the motor.............................................................................................................. 7-14
7.3.5 Jogging Operation ............................................................................................................................. 7-14

viii
7.3.6 Remote and local modes ................................................................................................................... 7-15
7.3.7 External run/frequency command ..................................................................................................... 7-16
7.4 Programming Mode ................................................................................................................................ 7-17
7.4.1 Setting up basic function codes quickly -- Menu #0 "Quick Setup" --.............................................. 7-19
7.4.2 Setting up function codes -- Menu #1 "Data Setting" --...................................................................7-22
7.4.3 Checking changed function codes -- Menu #2 "Data Checking" -- .................................................. 7-25
7.4.4 Monitoring the running status -- Menu #3 "Drive Monitoring" -- ................................................... 7-26
7.4.5 Checking I/O signal status -- Menu #4 "I/O Checking" -- ............................................................... 7-30
7.4.6 Reading maintenance information -- Menu #5 "Maintenance Information" -- ................................ 7-35
7.4.7 Reading alarm information -- Menu #6 "Alarm Information" --...................................................... 7-40
7.4.8 Copying data -- Menu #7 "Data Copying" -- ................................................................................... 7-43
7.5 Alarm Mode............................................................................................................................................ 7-46
7.5.1 Releasing the alarm and switching to Running mode ....................................................................... 7-46
7.5.2 Displaying the alarm history ............................................................................................................. 7-46
7.5.3 Displaying the status of inverter at the time of alarm ....................................................................... 7-46
7.5.4 Switching to Programming mode...................................................................................................... 7-46
7.6 USB Connectivity................................................................................................................................... 7-48
Chapter 8 RUNNING THROUGH RS-485 COMMUNICATION
8.1 Overview on RS-485 Communication...................................................................................................... 8-1
8.1.1 RS-485 common specifications........................................................................................................... 8-2
8.1.2 Terminal specifications for RS-485 communications .........................................................................8-3
8.1.3 Connection method ............................................................................................................................. 8-4
8.1.4 Communications support devices........................................................................................................ 8-6
8.1.5 Noise suppression................................................................................................................................ 8-7
8.2 Overview of FRENIC Loader................................................................................................................... 8-8
8.2.1 Specifications ...................................................................................................................................... 8-8
8.2.2 Connection .......................................................................................................................................... 8-9
8.2.3 Function overview............................................................................................................................... 8-9
8.2.3.1 Setting of function code .............................................................................................................. 8-9
8.2.3.2 Multi-monitor............................................................................................................................ 8-10
8.2.3.3 Running status monitor ............................................................................................................. 8-11
8.2.3.4 Test-running .............................................................................................................................. 8-12
8.2.3.5 Real-time trace .......................................................................................................................... 8-13
8.2.3.6 Historical trace .......................................................................................................................... 8-14
8.2.3.7 USB port on the standard keypad.............................................................................................. 8-15
Chapter 9 TROUBLESHOOTING
9.1 Protective Functions ................................................................................................................................. 9-1
9.2 Before Proceeding with Troubleshooting ................................................................................................. 9-3
9.3 If Neither an Alarm Code Nor "Light Alarm" Indication (
l-al ) Appears on the LED Monitor............ 9-4
9.3.1 Abnormal motor operation.................................................................................................................. 9-4
9.3.2 Problems with inverter settings ......................................................................................................... 9-10
9.4 If an Alarm Code Appears on the LED Monitor..................................................................................... 9-11
9.5 If the "Light Alarm" Indication (
l-al ) Appears on the LED Monitor................................................. 9-25
9.6 If an Abnormal Pattern Appears on the LED Monitor while Neither an Alarm Code nor
"Light Alarm" Indication (
l-al ) is Displayed..................................................................................... 9-26
Appendices
App. A Advantageous Use of Inverters (Notes on electrical noise)................................................................... A-1
A.1 Effect of inverters on other devices ....................................................................................................... A-1
A.2 Noise...................................................................................................................................................... A-2
A.3 Noise prevention.................................................................................................................................... A-4
App. B Japanese Guideline for Suppressing Harmonics by Customers Receiving High Voltage or
Special High Voltage ........................................................................................................................... A-12
B.1 Application to general-purpose inverters............................................................................................. A-12

ix
B.2 Compliance to the harmonic suppression for customers receiving high voltage or
special high voltage ............................................................................................................................. A-13
App. C Effect on Insulation of General-purpose Motors Driven with 400 V Class Inverters.......................... A-17
C.1 Generating mechanism of surge voltages ............................................................................................ A-17
C.2 Effect of surge voltages ....................................................................................................................... A-18
C.3 Countermeasures against surge voltages ............................................................................................. A-18
C.4 Regarding existing equipment............................................................................................................. A-19
App. D Inverter Generating Loss ..................................................................................................................... A-20
App. E Conversion from SI Units.................................................................................................................... A-21
App. F Allowable Current of Insulated Wires ................................................................................................. A-23
App. G Replacement Information .................................................................................................................... A-25
G.1 External dimensions comparison tables............................................................................................... A-25
G.2 Terminal arrangements and symbols ................................................................................................... A-28
G.3 Function codes..................................................................................................................................... A-35
Glossary
Index

Chapter 1
INTRODUCTION TO FRENIC-MEGA
This chapter describes the features and control system of the FRENIC-MEGA series and the recommended
configuration for the inverter and peripheral equipment.
Contents
1.1 Features....................................................................................................................................................... 1-1
1.2 Control System.......................................................................................................................................... 1-12
1.2.1 Theory of inverter ............................................................................................................................. 1-12
1.2.2 Motor drive controls.......................................................................................................................... 1-13
1.3 External View and Terminal Blocks.......................................................................................................... 1-14
1.4 Recommended Configuration ................................................................................................................... 1-16

1.1 Features
1-1
Chap. 1 INTRODUCTION TO FRENIC-MEGA
1.1 Features
Best vector control for the general-purpose inverter in the class
Ideal for highly accurate control such as positioning
Vector control with speed sensor
Effective for applications requiring highly precise and accurate positioning control such as offset
printing
Speed control range: 1:1500
Speed response: 100 Hz
Speed control accuracy: ±0.01%
Current response: 500 Hz
Torque accuracy: ±10%
* The option card is required.
* The above specifications may vary depending on
the environment or conditions for use.
Maximizing the performance of a general-purpose motor
Vector control without speed sensor
Useful for the application that requires a high starting torque, such as the gondola type multi-level car
parking tower
Speed control range: 1:200
Speed response: 20 Hz
Speed control accuracy: ±0.5%
Current response: 500 Hz
Torque accuracy: ±10%

1-2
Fuji's original dynamic torque vector control has further upgraded.
Besides the dynamic torque vector control, the inverter is equipped with the motor parameter tuning
for compensating even a voltage error of the main circuit devices and the magnetic flux observer of a
new system. This realizes a high starting torque of 200% even at a low-speed rotation of 0.3 Hz.
Improved reaction to the fluctuation of impact load
When a remarkable load fluctuation occurs, the inverter provides the torque response in the class-top
level. It controls the flux to minimize the fluctuation in the motor speed while suppressing the
vibration. This function is best suited for equipment that requires stable speed such as a cutting
machine.
Example:

1.1 Features
1-3
Chap. 1 INTRODUCTION TO FRENIC-MEGA
Improved durability in overload operation
Enhancement for extending the current overload durability time of the FRENIC-MEGA longer than
that of the Fuji conventional inverters allows the FRENIC-MEGA to run the motor with shorter
acceleration/deceleration time. This improves the operation efficiency of machinery such as cutting
machines or carrier machines.
Current overload durability: 200% for 3 seconds and 150% for 1 minute.
The standard model is available in the following three drive modes concerning the operation load.
Drive mode Current overload durability Major application
HD (High duty) mode 200% for 3 sec, 150% for 1 min Driving under heavy duty load
MD (Medium duty) mode 150% for 1 min Driving under medium duty load
LD (Low duty) mode 120% for 1 min Driving under light duty load
(The MD mode is available only in the 400 V class series of inverters with a capacity of 90 kW or
above.)
Quicker response to the operation commands
The terminal response to the operation commands has had an established reputation. The
FRENIC-MEGA has further shortened this response time, achieving the industry-top response time.
This function is effective in shortening the tact time per cycle and effective for use in the process
including frequent repetitions.
Example:
Expanded capacity for the brake switching circuit built-in type
A brake switching circuit is built in inverters with a capacity of 22 kW or less as standard. These
inverters are applicable to vertical carrier machines and others that run with a certain regenerative load.
(Inverters with a capacity of 7.5 kW or less also integrate a braking resistor.)
The brake switching circuit built-in type of inverters with a capacity of 30 to 55 kW in 200 V class
series and 30 to 110 kW in 400 V class series is available on request.
Output
current
Control terminal signal
(Run command)

1-4
Accommodating various applications
Convenient functions for operations at the specified speed
Pulse train input speed command supported as standard
The FRENIC-MEGA can issue a speed command with the pulse train input (single-phase pulse train
with sign).
(Maximum pulse input: 100 kHz)
Ratio operation
The ratio operation is convenient for synchronous control of two or more carrier machines in a
multiline conveyor system. It is possible to specify the ratio of the main speed to other follower motors
as a frequency command, so the conveying speed of carrier machines that handle variable loads or
loading situations can be synchronously adjusted easily.
Analog input (Ratio setting)
Frequency command output = Frequency command input × 100%
Optimum function for preventing an object from slipping down
The reliability of the brake signal was increased for uses such as vertical carrier machines.
Conventionally, the current value and the frequency have been monitored when the brake signal is
output. By adding a torque value to these two values, the brake timing can be adjusted more easily.

1.1 Features
1-5
Chap. 1 INTRODUCTION TO FRENIC-MEGA
Dancer control function optimum for winding control
The PID value, calculated by comparing the feedback value with the speed command value, is added
to or subtracted from the reference speed. Since the PID processor gain (in proportional band) can be
set low, the inverter can be applied to automatic control systems requiring quick response such as
speed control.
Thorough protection of the braking circuit
The inverter monitors the braking transistor operation status to protect the braking resistor. Upon
detection of a braking transistor abnormality, the inverter outputs an exclusive signal. Provide
such a circuit that shuts the input power off upon receipt of the exclusive signal, outside the inverter
for protecting the braking circuit.
More functions are available to meet various requirements
(1) Analog input: Two terminals for voltage input with polarity and one terminal for current input
(2) Slow flowrate level stop function (Pressurized operation is possible before stop of slow flowrate
operation.)
(3) Non-linear V/f pattern at 3 points
(4) Mock alarm output function
(5) Selection of up to the 4th motor
(6) S-curve accel./decel. range setting
(7) Detection of a PID feedback wire break