Fuji Electric FRENIC MEGA G2 Series User manual

Thank you for purchasing our multifunction FRENIC-MEGA series of high-performance, multi-function inverters.
•This product is designed to drive a three-phase motor under variable speed control. Read through this user's
manual and become familiar with the handling procedure for correct use.
•Incorrect handling may hinder normal operation, or result in a shortening of the product life or failure.
•Deliver this manual to the end user of this product.
•Keep this manual in a safe place until this product is discarded.
•For how to use an optional device, refer to the instruction and installation manuals for that optional device.
The English version of this document can be downloaded from the following site.
https://www.fujielectric.com/products/drive-download/
The Chinese version of this document can be downloaded from the following site.
https://www.fujielectric.com.cn/download_list.php
24A7-E-0162
High-Performance, Multi-Function Inverter
User’s Manual

Copyright © 2022 Fuji Electric Co., Ltd.
All rights reserved.
The copyright for this User's Manual lies with Fuji Electric Co., Ltd.
The unauthorized reproduction or reprinting of this instruction manual, in part or in full, is prohibited.
The names of companies and products mentioned in this manual are generally trademarks or registered trademarks
of the relevant companies.
The information contained herein is subject to change without prior notice for improvement.
Every effort has been made to ensure the accuracy of the content of this manual, however, please contact your
dealer or relevant Fuji Electric sales office at the end of this manual if there is anything that is unclear, or if any
errors and so on are found.

i
Preface
Thank you for purchasing our “FRENIC-MEGA” series of high-performance, multi-function inverters. This product
is designed to drive a three-phase motor under variable speed control.
This manual provides all the information on the FRENIC-MEGA series of inverters including its operating procedure
and selection of peripheral equipment. Read this User's Manual carefully beforehand to ensure correct use.
Incorrect handling may hinder normal operation, or result in a shortening of the product life or failure.
FRENIC-MEGA related documents are listed in the following table. Please refer to these documents based on the
purpose.
Name
Document No.
Description
Catalog
24A1-E-0166□
Product overview, features, specifications, outline
drawings, options, etc.
Instruction Manual
INR-SI47-2392□-E
Instruction manual packaged with the product
Instruction Manual
INR-SI47-2395□-E
Instruction manual for complete book (option)
RS-485
Communication
User's Manual
24A7-E-0082□
Overview of functions implemented by using FRENIC-
Series RS-485 communications facility, its
communications specifications, Modbus RTU/Fuji
general-purpose inverter protocol, function codes and
related data formats
Revisions are made to the above documents whenever required, and therefore the latest version should be obtained
before use.

ii
How this manual is organized
This manual is configured as follows.
Chapter 1 BEFORE USE
This chapter describes the items to checked before the use of the inverter.
Chapter 2 INSTALLATION AND WIRING
This chapter describes the important points in installing and wiring inverters.
Chapter 2 OPERATION USING THE KEYPAD
This chapter describes inverter keypad operation.
Chapter 4 TEST RUN PROCEDURE
This chapter describes basic settings required for making a test run.
Chapter 5 FUNCTION CODES
This chapter explains the table of function codes used in FRENIC-MEGA, and details of each function code.
Chapter 6 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.
Chapter 7 MAINTENANCE AND INSPECTION
This chapter describes the maintenance and inspection items of the inverter.
Chapter 8 BLOCK DIAGRAMS FOR CONTROL LOGIC
This chapter describes the main block diagrams of the control section.
Chapter 9 COMMUNICATION FUNCTIONS
This chapter describes an overview of inverter operation through the RS-485 and CANopen communications. For
details on RS-485 communication, refer to the RS-485 Communication User's Manual (24A7-E-xxxx).
Chapter 10 SELECTING OPTIMAL MOTOR AND INVERTER CAPACITIES
This chapter provides you with information about the inverter output torque characteristics, capacity selection
procedure, and equations for calculating capacities to help you select optimal motor and inverter models. It also
helps you select braking resistors, inverter specification (HHD/HND), and motor drive control.
Chapter 11 SELECTING PERIPHERAL EQUIPMENT
This chapter describes how to use a range of peripheral equipment and options, FRENIC-Ace's configuration with
them, and requirements and precautions for selecting wires and crimp terminals.
Chapter 12 SPECIFICATIONS
This chapter describes the inverter output ratings.
Chapter 13 EXTERNAL DIMENSIONS
This chapter gives external dimensions of the inverter.
APPENDICES

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CONTENTS
Chapter 1 BEFORE USE
1.1 Acceptance Inspection (Nameplate and Inverter Type) ..................................................................... 1-1
1.2 Product External Appearance ............................................................................................................ 1-3
1.3 Precautions for Using Inverters ......................................................................................................... 1-5
1.3.1 Usage environment ....................................................................................................................... 1-5
1.3.2 Storage environment..................................................................................................................... 1-8
[ 1 ] Temporary storage.................................................................................................................... 1-8
[ 2 ] Long-term storage .................................................................................................................... 1-8
1.3.3 Precautions for connection of peripheral equipment ..................................................................... 1-9
[ 1 ] Phase-advancing capacitors for power factor correction .......................................................... 1-9
[ 2 ] Power supply lines (application of DC/AC reactors) ................................................................. 1-9
[ 3 ] DC reactor (DCR) for correcting the inverter input power factor (for suppressing harmonics) . 1-9
[ 4 ] PWM converter for correcting the inverter input power factor................................................. 1-10
[ 5 ] Molded case circuit breakers (MCCB)/earth leakage circuit breakers (ELCB)........................ 1-10
[ 6 ] Magnetic contactor (MC) in the inverter input (primary) circuit ............................................... 1-10
[ 7 ] Magnetic contactor (MC) in the inverter output (secondary) circuit......................................... 1-10
[ 8 ] Surge absorber/surge killer..................................................................................................... 1-10
1.3.4 Noise reduction ............................................................................................................................1-11
1.3.5 Leakage current ...........................................................................................................................1-11
Chapter 2 INSTALLATION AND WIRING
2.1 Installation ......................................................................................................................................... 2-1
2.2 Wiring ................................................................................................................................................ 2-4
2.2.1 Basic connection diagrams ........................................................................................................... 2-4
2.2.2 Removal and attachment of the front cover and wiring guide ....................................................... 2-6
2.2.3 Wiring precautions ........................................................................................................................ 2-7
2.2.4 Precautions for long wiring (between inverter and motor) ............................................................. 2-9
2.2.5 Main circuit terminals ...................................................................................................................2-11
[ 1 ] Screw specifications and recommended wire size (main circuit terminals)..............................2-11
[ 2 ] Terminal layout diagrams (main circuit terminals)................................................................... 2-12
[ 3 ] Recommended wire size (main circuit terminals) ................................................................... 2-13
[ 4 ] Terminal function description (main circuit terminals) ............................................................. 2-22
2.2.6 Control circuit terminals (common to all models)......................................................................... 2-27
[ 1 ] Screw specifications and recommended wire size (control circuit terminals).......................... 2-27
[ 2 ] Terminal layout diagram (control circuit terminals).................................................................. 2-27
[ 3 ] Control circuit wiring precautions............................................................................................ 2-28
[ 4 ] Description of terminal functions (control circuit terminals)..................................................... 2-29
2.2.7 Switching switches ...................................................................................................................... 2-40
2.3 Mounting and Removing the Keypad............................................................................................... 2-43
Chapter 3 OPERATION USING THE KEYPAD
3.1 Name and Function of Each Keypad Part.......................................................................................... 3-1
3.2 Overview of Operation Modes ........................................................................................................... 3-3
3.3 Running Mode ................................................................................................................................... 3-5
3.3.1 Operating state monitor................................................................................................................. 3-5
3.3.2 Status display................................................................................................................................ 3-7
3.3.3 Monitoring warnings ...................................................................................................................... 3-8
3.3.4 Running or stopping the motor with the keypad ............................................................................ 3-9
3.3.5 Setting the reference frequency with the keypad .......................................................................... 3-9
3.3.6 Setting PID commands with the keypad...................................................................................... 3-10
[ 1 ] Settings under PID process control ........................................................................................ 3-10

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[ 2 ] Settings under PID dancer control.......................................................................................... 3-12
3.3.7 Jogging operation........................................................................................................................ 3-14
3.3.8 Switching between local and remote modes ............................................................................... 3-15
3.3.9 Changing the M/Shift key function............................................................................................... 3-16
3.3.10 Display when keypad operation disabled (command source display) ........................................ 3-16
3.4 Programming Mode ......................................................................................................................... 3-17
3.4.1 Setting function codes “Data Setting: 1.f__ to 1.k__”............................................................. 3-18
3.4.2 Checking changed function codes “Data Checking: 2.rep”...................................................... 3-20
3.4.3 Monitoring the running status “Drive Monitoring: 3.ope”........................................................... 3-21
3.4.4 Checking I/O signal status “I/O Checking: 4.i_o”..................................................................... 3-25
3.4.5 Reading maintenance information “Maintenance Information: 5.CHE”....................................... 3-31
3.4.6 Reading alarm information “Alarm Information: 6.al”................................................................ 3-37
3.4.7 Copying data “Data Copying: 7.Cpy”......................................................................................... 3-41
3.4.8 Setting “Favorites” function code data “Favorites: 0.fnC”......................................................... 3-45
3.5 Alarm Mode ..................................................................................................................................... 3-46
3.5.1 Releasing the alarm and switching to running mode................................................................... 3-46
3.5.2 Displaying the alarm history ........................................................................................................ 3-46
3.5.3 Displaying the status of inverter at the time of alarm................................................................... 3-46
3.5.4 Switching to programming mode................................................................................................. 3-46
3.6 USB Port.......................................................................................................................................... 3-47
Chapter 4 TEST RUN PROCEDURE
4.1 Test Run Procedure Flowchart .......................................................................................................... 4-1
4.2 Checking Prior to Powering On ......................................................................................................... 4-2
4.3 Powering ON and Checking .............................................................................................................. 4-3
4.4 Destination setting ............................................................................................................................. 4-4
4.5 Switching the Applicable Motor Rating (HHD/HND Specifications).................................................... 4-6
4.6 Selecting the Motor Control Method .................................................................................................. 4-7
4.6.1 V/f control without slip compensation (induction motors) .............................................................. 4-7
4.6.2 V/f control with slip compensation (induction motors) ................................................................... 4-7
4.6.3 Dynamic torque vector control (induction motors) ......................................................................... 4-8
4.6.4 V/f control with sensor (induction motors) ..................................................................................... 4-8
4.6.5 Dynamic torque vector control with sensor (induction motors) ...................................................... 4-8
4.6.6 Sensorless vector control (induction motors) ................................................................................ 4-8
4.6.7 Vector control with sensor (induction motors)................................................................................ 4-9
4.6.8 Sensorless vector control (synchronous motors) .......................................................................... 4-9
4.6.9 Vector control with sensor (synchronous motors)........................................................................ 4-10
4.7Performance Comparison for Drive Controls (Summary) .................................................................4-11
4.8 Configuring Function Codes for Drive Controls ............................................................................... 4-13
4.8.1 Induction motor operation ........................................................................................................... 4-15
[ 1 ] If running the motor with simple V/f control............................................................................. 4-15
[ 2 ] If running the motor with V/f control with sensor ..................................................................... 4-16
[ 3 ] If running the motor with V/f control with slip compensation, dynamic torque
vector control, or sensorless vector control ............................................................................ 4-18
[ 4 ] If running the motor with dynamic torque vector control with sensor or
vector control with sensor ....................................................................................................... 4-20
[ 5 ] Induction motor tuning method ............................................................................................... 4-22
4.8.2 Synchronous motor operation ..................................................................................................... 4-25
[ 1 ] If running the motor with sensorless vector control (synchronous motors) ............................. 4-25
[ 2 ] If driving the motor under vector control with sensor (synchronous motors).......................... 4-28
[ 3 ] Synchronous motor tuning method ......................................................................................... 4-34
4.8.3 Motor temperature protection setting .......................................................................................... 4-38
[ 1 ] Electronic thermal overload relay (for motor 1 protection) ...................................................... 4-38

v
[ 2 ] Motor protection with thermistor ............................................................................................. 4-38
4.9 Setting function codes when switching from a conventional model ................................................. 4-39
4.9.1 Switching from FRENIC-MEGA (G1S) ........................................................................................ 4-39
[ 1 ] Copying function codes using the keypad .............................................................................. 4-39
[ 2 ] Entering function codes directly from the keypad ................................................................... 4-39
[ 3 ] Entering function codes from PC Loader ................................................................................ 4-40
4.9.2 Switching from FRENIC5000G11S/P11S or FRENIC5000G9S/P9S........................................... 4-40
4.10 Operation Check.............................................................................................................................. 4-41
4.10.1 Test run procedure ..................................................................................................................... 4-41
4.10.2 Check points during a test run ................................................................................................... 4-41
4.10.3 Adjusting the function code for motor control ............................................................................. 4-42
4.11 Selecting a Frequency Command Source ....................................................................................... 4-44
4.11.1 Setting the frequency from the keypad....................................................................................... 4-44
4.11.2 Setting the frequency with an external potentiometer (variable resistor).................................... 4-45
4.11.3 Setting the frequency with multistep frequency selection (1 speed, 2 speed, etc.) .................... 4-46
4.12 Selecting a Run Command Source ................................................................................................. 4-47
4.12.1 Setting run commands from the keypad..................................................................................... 4-47
4.12.2 Setting run commands with external signals (terminal [FWD, [REV]) ........................................ 4-47
Chapter 5 FUNCTION CODES
5.1 Function Codes Overview.................................................................................................................. 5-1
5.2 Function Code Tables ........................................................................................................................ 5-2
5.2.1 Supplementary note ...................................................................................................................... 5-2
5.2.2 Function code tables ..................................................................................................................... 5-4
[ 1 ] F codes: Fundamental functions............................................................................................... 5-4
[ 2 ] E codes: Extension Terminal Functions (terminal functions)..................................................... 5-8
[ 3 ] C codes: Control Functions of Frequency (Control function) .................................................. 5-16
[ 4 ] P codes: Motor 1 Parameters (Motor 1 parameters)............................................................... 5-18
[ 5 ] H codes: High Performance Functions (High level functions)................................................. 5-20
[ 6 ] A codes: Motor 2 Parameters (Motor 2 parameters)............................................................... 5-26
[ 7 ] b codes: Motor 3 Parameters (Motor 3 parameters) ............................................................... 5-29
[ 8 ] r codes: Motor 4 Parameters (Motor 4 parameters)................................................................ 5-31
[ 9 ] J codes: Application Functions 1 (Application function 1) ....................................................... 5-33
[ 10 ] d codes: Application Functions 2 (Application functions 2) ..................................................... 5-36
[ 11 ] U codes: Application Functions 3 (Customizable logic) .......................................................... 5-43
[ 12 ] y codes: LINK Functions (Link functions)................................................................................ 5-48
[ 13 ] o codes: Option Functions (Option functions)......................................................................... 5-50
[ 14 ] K codes: Keypad functions (Keypad functions) ...................................................................... 5-53
5.3 Description of Function Codes......................................................................................................... 5-66
5.3.1 F codes (Fundamental functions)................................................................................................ 5-66
[ 1 ] Setting the frequency with the keypad (F01 = 0 (factory default) or 8) ................................... 5-68
[ 2 ] Setting the frequency with analog input (F01 = 1 to 3, 5, 6) ................................................... 5-69
[ 3 ] Frequency setting by digital input signal “UP”/“DOWN” (F01=7) ............................................ 5-76
[ 4 ] Frequency setting using digital input (option DIO interface card) (F01 = 11) .......................... 5-77
[ 5 ] Frequency setting using pulse train input (F01 = 12).............................................................. 5-78
5.3.2 E codes (Extension terminal functions) ..................................................................................... 5-136
5.3.3 C codes (Control functions)....................................................................................................... 5-190
5.3.4 P codes (Motor 1 parameters)................................................................................................... 5-201
5.3.5 H codes (High performance functions)...................................................................................... 5-212
[ 1 ] Measuring the capacitance of DC link bus capacitor in comparison
with initial one at shipment.................................................................................................... 5-233
[ 2 ] Measuring the capacitance of DC link bus capacitor under ordinary
operating conditions at power shutdown............................................................................... 5-234

vi
5.3.6 A, b, r codes (Motor 2 to 4 parameters) .................................................................................... 5-261
5.3.7 b, r codes (Speed control 3 and 4 parameters) ......................................................................... 5-266
5.3.8 J codes (Applied functions) ....................................................................................................... 5-267
[ 1 ] PID command with keypad (J02 = 0, factory default) ........................................................... 5-268
[ 2 ] PID command by analog inputs (J02 = 1)............................................................................. 5-269
[ 3 ] PID command with UP/DOWN control (J02 = 3) .................................................................. 5-270
[ 4 ] PID command via communications link (J02 = 4) ................................................................. 5-271
[ 5 ] Overload stop function.......................................................................................................... 5-285
[ 6 ] Brake control signal .............................................................................................................. 5-287
5.3.9 d codes (Applied functions 2) .................................................................................................... 5-296
[ 1 ] Speed control ....................................................................................................................... 5-296
[ 2 ] Line speed control ................................................................................................................ 5-306
[ 3 ] Master-follower operation ..................................................................................................... 5-309
[ 4 ] Hoist function........................................................................................................................ 5-343
[ 5 ] Position control ..................................................................................................................... 5-350
[ 6 ] Setting example for conveyor performing sizing by position control ..................................... 5-367
5.3.10 U codes (Customizable logic operation)................................................................................... 5-377
5.3.11 U1 codes (Customizable logic operation)................................................................................. 5-409
5.3.12 y codes (Link functions) ........................................................................................................... 5-414
5.3.13 K codes (Keypad functions) ..................................................................................................... 5-421
Chapter 6 TROUBLESHOOOTING
6.1 Protective Functions .......................................................................................................................... 6-1
6.2 Before Proceeding with Troubleshooting ........................................................................................... 6-3
6.3 If an Alarm Code Appears on the LED Monitor .................................................................................. 6-4
6.3.1 Alarm code list............................................................................................................................... 6-4
6.3.2 Causes, checks and measures of alarms ..................................................................................... 6-8
[ 1 ] Ca1 to Ca5 User-defined alarm.............................................................................................. 6-8
[ 2 ] Cof Current input terminals [C1], [C2] signal line break.......................................................... 6-8
[ 3 ] dba Braking transistor broken ................................................................................................. 6-8
[ 4 ] dbH Braking resistor overheat ................................................................................................. 6-9
[ 5 ] ECf EN circuit failure............................................................................................................... 6-9
[ 6 ] ECl Customizable logic error ................................................................................................ 6-10
[ 7 ] ef Ground fault protection (FRN0032G2S-2G/FRN0018G2□-4G or above) ....................... 6-10
[ 8 ] er1 Memory error ................................................................................................................. 6-10
[ 9 ] er2 Keypad communication error ..........................................................................................6-11
[ 10 ] er3 CPU error........................................................................................................................6-11
[ 11 ] er4 Option communication error............................................................................................6-11
[ 12 ] er5 Option error.....................................................................................................................6-11
[ 13 ] er6 Operation error .............................................................................................................. 6-12
[ 14 ] er7 Tuning error ................................................................................................................... 6-13
[ 15 ] er8 RS-485 communication error (Communication port 1)/
erp RS-485 communication error (Communication port 2)................................................... 6-14
[ 16 ] erd Step-out detection/detection failure of magnetic pole position at startup ....................... 6-15
[ 17 ] erC Magnetic pole position detection error ........................................................................... 6-16
[ 18 ] ere Speed inconsistency / Excessive speed deviation......................................................... 6-17
[ 19 ] erf Data saving error during undervoltage........................................................................... 6-18
[ 20 ] erH Hardware error............................................................................................................... 6-18
[ 21 ] ero Positioning control error ................................................................................................. 6-18
[ 22 ] err Simulated failure ............................................................................................................ 6-19
[ 23 ] fUs Blown fuse ..................................................................................................................... 6-19
[ 24 ] fAL DC fan lock .................................................................................................................... 6-19

vii
[ 25 ] lin Input phase loss............................................................................................................. 6-19
[ 26 ] lok Password protection ...................................................................................................... 6-20
[ 27 ] lU Undervoltage .................................................................................................................... 6-20
[ 28 ] nrb NTC wire break error ..................................................................................................... 6-20
[ 29 ] 0Cn Instantaneous overcurrent ............................................................................................. 6-21
[ 30 ] 0H1 Cooling fin overheat....................................................................................................... 6-22
[ 31 ] 0H2 External alarm................................................................................................................ 6-22
[ 32 ] 0H3 Inverter internal overheat ............................................................................................... 6-22
[ 33 ] 0H4 Motor protection (PTC/NTC thermistor) ......................................................................... 6-23
[ 34 ] 0H6 Charging resistor overheat............................................................................................. 6-23
[ 35 ] 0ln Motor overloads 1 to 4 ................................................................................................... 6-24
[ 36 ] 0lU Inverter overload............................................................................................................ 6-25
[ 37 ] 0pl Output phase-failure detection....................................................................................... 6-26
[ 38 ] 0s Overspeed protection ....................................................................................................... 6-26
[ 39 ] 0Un Overvoltage ................................................................................................................... 6-27
[ 40 ] Pbf Charge circuit fault (FRN0008G2S-2G/FRN0004G2□-4G or above)............................ 6-27
[ 41 ] pG PG wire break................................................................................................................... 6-28
[ 42 ] d0 Excessive positioning deviation........................................................................................ 6-28
6.4 If a Warning Code is Displayed........................................................................................................ 6-29
6.4.1 Warning code list......................................................................................................................... 6-29
6.4.2 Warning cause and check ........................................................................................................... 6-29
[ 1 ] CnT Machine life (Number of startups).................................................................................. 6-29
[ 2 ] iGb IGBT lifetime alarm ........................................................................................................ 6-29
[ 3 ] lif Lifetime alarm ................................................................................................................ 6-29
[ 4 ] OH Cooling fin overheat early warning ................................................................................... 6-30
[ 5 ] Ol Motor overload early warning ........................................................................................... 6-30
[ 6 ] pid PID alarm output............................................................................................................ 6-30
[ 7 ] pTC PTC thermistor activated ............................................................................................... 6-30
[ 8 ] rAf Cooling capability drop................................................................................................... 6-30
[ 9 ] ref Reference loss............................................................................................................... 6-30
[ 10 ] rTe Machine life (Cumulative motor running hours) ............................................................. 6-30
[ 11 ] UTl Low torque detection...................................................................................................... 6-31
[ 12 ] Lob Low battery warnig (for Multi-function Keypad (TP-A2SW)).......................................... 6-31
6.5 Other Errors..................................................................................................................................... 6-32
6.5.1 Abnormal motor operation........................................................................................................... 6-32
[ 1 ] The motor does not rotate ...................................................................................................... 6-32
[ 2 ] The motor rotates, but the speed does not increase............................................................... 6-34
[ 3 ] The motor runs in the opposite direction to the command ...................................................... 6-35
[ 4 ] Speed fluctuation or current oscillation (e.g., hunting) occurs during running
at constant speed ................................................................................................................... 6-36
[ 5 ] Unpleasant noises are emitted from motor or noises fluctuate ............................................... 6-37
[ 6 ] Motor is not accelerated or decelerated according to set-up acceleration or
deceleration times................................................................................................................... 6-38
[ 7 ] The motor does not restart even after the power recovers from
a momentary power failure ..................................................................................................... 6-39
[ 8 ] Motor generates heat abnormally ........................................................................................... 6-39
[ 9 ] The motor does not run as expected ...................................................................................... 6-39
[ 10 ] Motor stalls during acceleration .............................................................................................. 6-40
6.5.2 Problems with inverter settings ................................................................................................... 6-41
[ 1 ] Nothing appears on the keypad.............................................................................................. 6-41
[ 2 ] The desired menu is not displayed ......................................................................................... 6-41
[ 3 ] Display of under bars (_____)............................................................................................. 6-41
[ 4 ] Display of center bars (-----)............................................................................................. 6-42

viii
[ 5 ] [ ] Display of parenthesis ............................................................................................... 6-42
[ 6 ] Data of function codes cannot be changed............................................................................. 6-42
[ 7 ] Function code data are not changeable (change from link functions)..................................... 6-43
[ 8 ] en.Off appears.................................................................................................................... 6-43
[ 9 ] Other status display ................................................................................................................ 6-43
Chapter 7 MAINTENANCE AND INSPECTION
7.1 Inspection Interval ............................................................................................................................. 7-2
7.2 Daily Inspection ................................................................................................................................. 7-3
7.3 Periodic Inspection ............................................................................................................................ 7-4
7.3.1 Periodic inspection 1--Before the inverter is powered ON or after it stops running ....................... 7-4
7.3.2 Periodic inspection 2--When the inverter is ON or it is running ..................................................... 7-6
7.4 List of Periodic Replacement Parts.................................................................................................... 7-7
7.4.1 Judgment on service life ............................................................................................................... 7-8
[ 1 ] Measuring the capacitance of DC link bus capacitor in comparison with initial value
at time of shipment ................................................................................................................. 7-10
[ 2 ] Measuring the capacitance of the DC link bus capacitor
under ordinary operating conditions.........................................................................................7-11
[ 3 ] Early warning of lifetime alarm.................................................................................................7-11
7.5 Measuring the Amount of Electricity in Main Circuit......................................................................... 7-12
7.6 Insulation Test.................................................................................................................................. 7-13
7.6.1 Megger test of main circuit .......................................................................................................... 7-13
7.6.2 Insulation test of control circuit .................................................................................................... 7-13
7.6.3 Insulation test of external main circuit and sequence control circuit............................................ 7-13
7.7 Product Inquiries and Warranty ....................................................................................................... 7-14
7.7.1 Inquiry request ............................................................................................................................ 7-14
7.7.2 Product warranty ......................................................................................................................... 7-14
[ 1 ] Free of charge warranty period and warranty range ............................................................... 7-14
[ 2 ] Exclusion of liability for loss of opportunity, etc. ...................................................................... 7-15
[ 3 ] Repair period after production stoppage, spare parts supply period
(maintenance period).............................................................................................................. 7-15
[ 4 ] Delivery conditions.................................................................................................................. 7-15
[ 5 ] Service description ................................................................................................................. 7-15
[ 6 ] Applicable scope of service .................................................................................................... 7-15
Chapter 8 BLOCK DIAGRAMS FOR CONTROL LOGIC
8.1 Meanings of Symbols Used in the Control Block Diagrams............................................................... 8-1
8.2 Frequency Setting Section................................................................................................................. 8-2
8.3 Operation Command Section ............................................................................................................ 8-5
8.4 PID Control Section (for Processing)................................................................................................. 8-6
8.5 PID Control Section (for Dancer) ....................................................................................................... 8-7
8.6 Position Control Section .................................................................................................................... 8-8
8.7 Control Section .................................................................................................................................. 8-9
8.7.1 V/f control ...................................................................................................................................... 8-9
[ 1 ] Common ................................................................................................................................... 8-9
[ 2 ] Without speed sensor ............................................................................................................. 8-10
[ 3 ] With speed sensor ...................................................................................................................8-11
8.7.2 Vector control .............................................................................................................................. 8-12
[ 1 ] Common ................................................................................................................................. 8-12
[ 2 ] Torque command / torque limit ............................................................................................... 8-13
[ 3 ] Speed control / torque control................................................................................................. 8-14
[ 4 ] Speed limit and over speed protection processing ................................................................. 8-15
[ 5 ] Motor drive.............................................................................................................................. 8-16

ix
[ 6 ] PMSM drive ............................................................................................................................ 8-17
8.8 FM Output Section........................................................................................................................... 8-19
Chapter 9 COMMUNICATION FUNCTIONS
9.1 Overview of RS-485 Communication................................................................................................. 9-1
9.1.1 RS-485 common specifications..................................................................................................... 9-2
9.1.2 RS-485 communication terminal specifications............................................................................. 9-3
[ 1 ] RS-485 COM port 1 (RJ-45 connector for keypad connection) specification............................ 9-3
[ 2 ] RS-485 COM port 2 (terminal block) specifications .................................................................. 9-3
9.1.3 Connection method ....................................................................................................................... 9-4
9.1.4 RS-485 connection devices........................................................................................................... 9-6
[ 1 ] Converter.................................................................................................................................. 9-6
[ 2 ] Requirements for the cable (COM port 1: for RJ-45 connector) ............................................... 9-6
[ 3 ] Requirements for the cable (COM port 2: for RS-485 terminal block connection) .................... 9-6
[ 4 ] Branch adapter for multi-drop ................................................................................................... 9-6
9.1.5 RS-485 noise suppression ............................................................................................................ 9-7
9.2 FRENIC Loader Overview ................................................................................................................. 9-8
9.2.1 Specifications ................................................................................................................................ 9-8
Chapter 10 SELECTING OPTIMAL MOTOR AND INVERTER CAPACITIES
10.1 Motor Output Torque Characteristics ............................................................................................... 10-1
10.2 Selection Procedure ........................................................................................................................ 10-3
10.3 Equations for Selections .................................................................................................................. 10-6
10.3.1 Load torque during constant speed running............................................................................... 10-6
[ 1 ] General equation .................................................................................................................... 10-6
[ 2 ] Obtaining the required force F ................................................................................................ 10-6
10.3.2 Acceleration and deceleration time calculation .......................................................................... 10-8
[ 1 ] Calculation of moment of inertia ............................................................................................. 10-8
[ 2 ] Calculation of the acceleration time ...................................................................................... 10-10
[ 3 ] Calculation of the deceleration time.......................................................................................10-11
[ 4 ] Calculating non-linear acceleration/deceleration time............................................................10-11
[ 5 ] Calculating non-linear deceleration time............................................................................... 10-12
10.3.3 Heat energy calculation of braking resistor .............................................................................. 10-13
[ 1 ] Calculation of regenerative energy ....................................................................................... 10-13
10.3.4 Calculating the RMS rating of the motor .................................................................................. 10-14
10.4 Selecting the Inverter Rating Specification (HHD/HND) ................................................................ 10-15
10.4.1 Precautions in making the selection......................................................................................... 10-15
10.4.2 Guideline for selecting inverter specification and capacity ....................................................... 10-16
Chapter 11 SELECTING PERIPHERAL EQUIPMENT
11.1 Configuring the FRENIC-MEGA .......................................................................................................11-1
11.2 Size of Current for Each Part of the Inverter.....................................................................................11-2
11.3 Molded Case Circuit Breakers (MCCB), Earth Leakage Circuit Breakers (ELCB) and Magnetic
Contactors (MC) ...............................................................................................................................11-5
11.3.1 Function Overview ......................................................................................................................11-5
11.3.2 Connection Example and Criteria for Selection of Circuit Breakers ............................................11-6
11.4 Surge Killers ...................................................................................................................................11-12
11.5 Lightning Surge Protection Device SPD .........................................................................................11-13
11.6 Surge Absorbers.............................................................................................................................11-14
11.7 Filter Capacitors for Suppressing AM Radio Band Noise................................................................11-15
11.8 Braking Resistors (DB) and Braking Units......................................................................................11-16
11.8.1 Selecting a Braking Resistor .....................................................................................................11-16
[ 1 ] Selection procedure...............................................................................................................11-16
[ 2 ] Notes on selection .................................................................................................................11-16

x
11.8.2 Overview of Braking Resistors (DB) and Braking Units.............................................................11-17
[ 1 ] Standard type ........................................................................................................................11-17
[ 2 ] 10%ED type...........................................................................................................................11-17
[ 3 ] Overview of braking unit ........................................................................................................11-18
11.8.3 Specification..............................................................................................................................11-19
11.8.4 External dimensions..................................................................................................................11-22
11.9 High Power Factor Power Supply Regeneration PWM Converters (RHC Series) ..........................11-24
11.9.1 Overview ...................................................................................................................................11-24
11.9.2 Specification..............................................................................................................................11-25
[ 1 ] Standard specification ...........................................................................................................11-25
[ 2 ] Common Specifications .........................................................................................................11-29
11.9.3 Function Specifications .............................................................................................................11-31
11.9.4 Device Configuration.................................................................................................................11-36
11.9.5 External Dimensions .................................................................................................................11-39
11.10 Compact Power Regeneration PWM Converter .............................................................................11-48
11.10.1 Specifications............................................................................................................................11-48
[ 1 ] Standard specification ...........................................................................................................11-48
[ 2 ] Common specifications..........................................................................................................11-49
[ 3 ] Terminal functions..................................................................................................................11-50
11.10.2 Device Configuration.................................................................................................................11-52
[ 1 ] Device configuration table .....................................................................................................11-52
[ 2 ] Basic connection diagrams....................................................................................................11-53
11.10.3 External Dimensions .................................................................................................................11-54
11.10.4 Peripheral Equipment................................................................................................................11-56
11.11 DC Reactors (DCRs) ......................................................................................................................11-61
11.12 AC Reactors (ACRs).......................................................................................................................11-67
11.13 Surge Suppression Units (SSU) .....................................................................................................11-72
11.14 Output Circuit Filters (OFL).............................................................................................................11-74
11.15 Zero-phase Reactors for Suppressing Radio Noise (ACL) .............................................................11-77
11.16 External Cooling Fan Attachments .................................................................................................11-78
11.17 IP40 Compatibility Attachment (P40ST-F□1) ..................................................................................11-80
11.18 External Frequency Command Potentiometer (External) ...............................................................11-82
11.19 Extension Cable for Remote Operation ..........................................................................................11-83
11.20 Selecting Measurement Options.....................................................................................................11-84
11.20.1 Frequency meters .....................................................................................................................11-84
11.21 Control Terminal Block (G1S Compatible) OPC-G1-TB1................................................................11-85
11.22 Built-in Option Card Types and Ports in Which They Can be Installed ...........................................11-86
11.22.1 T-Link Communication Card (OPC-TL) .....................................................................................11-87
11.22.2 SX-bus Communication Card (OPC-SX)...................................................................................11-91
11.22.3 PROFIBUS-DP Communication Card (OPC-PDP2) .................................................................11-94
11.22.4 CANopen Communication Card (OPC-COP2)..........................................................................11-97
11.22.5 DeviceNet Communication Card (OPC-DEV) .........................................................................11-100
11.22.6 CC-Link Communication Card (OPC-CCL) .............................................................................11-104
11.22.7 Multiprotocol Ethernet® Communication Card (OPC-ETM) .....................................................11-106
11.22.8 Digital Input Interface Card (OPC-DI)......................................................................................11-109
11.22.9 Digital Output Interface Card (OPC-DO) .................................................................................11-112
11.22.10 Analog Interface Card (OPC-AIO) ......................................................................................11-115
11.22.11 Relay Output Interface Card (OPC-RY) ..............................................................................11-121
11.22.12 PG Interface Card (OPC-PG) .............................................................................................11-123
11.22.13 PG Interface (5 V Line Driver) Card (OPC-PG2) ................................................................11-126
11.22.14 PG Interface (5 V Line Driver x 2 Systems) Card (OPC-PG22) ..........................................11-130
11.22.15 PG Interface Card for Synchronous Motor with Sensor (OPC-PMPG2) .............................11-133

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11.23 Multi-function Keypad (TP-A2SW)................................................................................................11-135
Chapter 12 SPECIFICATIONS
12.1 Standard Specifications 1 (Basic Type) ........................................................................................... 12-1
12.1.1 Three-phase 200V series........................................................................................................... 12-1
12.1.2 Three-phase 400 V series.......................................................................................................... 12-4
12.2 Standard Specifications 2 (Type with Built-in EMC Filter)................................................................ 12-8
12.2.1 Three-phase 400V series........................................................................................................... 12-8
12.3 Common Specifications ................................................................................................................. 12-12
Chapter 13 EXTERNAL DIMENSIONS
13.1 Standard Specification, Semi-standard Specification ...................................................................... 13-1
13.2 Keypad .......................................................................................................................................... 13-17
APPENDICES
Appendix A Trouble-free Use of Inverters (Notes on Electrical Noise).......................................................... 1
A.1 Effect of inverters on other devices .................................................................................................. 1
[ 1 ] Effect on AM radios...................................................................................................................... 1
[ 2 ] Effect on telephones .................................................................................................................... 1
[ 3 ] Effect on pressure sensors .......................................................................................................... 1
[ 4 ] Effect on position detectors (pulse encoders).............................................................................. 1
[ 5 ] Effect on proximity switches......................................................................................................... 1
A.2 Noise................................................................................................................................................ 2
[ 1 ] Inverter Operating Principle and Noise ........................................................................................ 2
[ 2 ] Types of noise ............................................................................................................................. 3
A.3 Measure ........................................................................................................................................... 5
[ 1 ] Noise prevention prior to installation............................................................................................ 5
[ 2 ] Implementation of noise prevention measures ............................................................................ 6
[ 3 ] Noise prevention examples ......................................................................................................... 9
Appendix B Japanese Guideline for Suppressing Harmonics by Customers Receiving
High Voltage or Special High Voltage (General-purpose Inverters)......................................... 13
B.1 Application of general-purpose inverters........................................................................................ 13
[ 1 ] Application for Other Than Special Customers.......................................................................... 13
[ 2 ] Application for "Guideline for Suppressing Harmonics by Customers Receiving
High Voltage or Special High Voltage"....................................................................................... 13
B.2 Complying with "Guideline for Suppressing Harmonics by Customers Receiving
High Voltage or Special High Voltage" .......................................................................................... 15
[ 1 ] Calculation of equivalent capacity (Pi) ....................................................................................... 15
[ 2 ] Harmonic Current Calculation.................................................................................................... 16
[ 3 ] Examples of calculation ............................................................................................................. 18
Appendix C Effect on Insulation of General-purpose Motors Driven with 400 V Class Inverters ................ 19
C.1 Generating mechanism of surge voltages...................................................................................... 19
C.2 Effect of surge voltages.................................................................................................................. 20
C.3 Countermeasures against surge voltages...................................................................................... 21
[ 1 ] Using a surge suppressor unit (SSU) ........................................................................................ 21
[ 2 ] Suppressing surge voltages ...................................................................................................... 21
[ 3 ] Using motors with enhanced insulation ..................................................................................... 21
C.4 Regarding existing equipment........................................................................................................ 22
[ 1 ] In case of a motor being driven with 400 V class inverter.......................................................... 22
[ 2 ] In case of an existing motor driven using a newly installed 400 V class inverter ....................... 22
Appendix D Inverter Generating Loss......................................................................................................... 23
Appendix E Conversion to other than SI Units............................................................................................ 24
E.1 Conversion of units ........................................................................................................................ 24
E.2 Calculation formulas....................................................................................................................... 25

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Appendix F Permissible Current of Insulated Wires.................................................................................... 26
Appendix G Conformity with Standards ...................................................................................................... 29
G.1 Compliance with European Standards ( ) ............................................................................... 29
[ 1 ] Compliance with EMC standards............................................................................................... 29
[ 2 ] Compliance with European Low Voltage Directive .................................................................... 34
G.2 Harmonic Component Regulations in EU....................................................................................... 43
[ 1 ] General comments .................................................................................................................... 43
[ 2 ] Compliance with the harmonic component regulation ............................................................... 43
G.3 Compliance with UL Standards and Canadian Standards (cUL certification) ................................. 44
[ 1 ] General comments .................................................................................................................... 44
[ 2 ] UL Standards and Canadian Standards (cUL Certification) Compatibility ................................. 44
G.4 Compliance with Functional Safety Standards ............................................................................... 49
[ 1 ] General...................................................................................................................................... 49
[ 2 ] Notes for compliance with functional safety standards .............................................................. 51
[ 3 ] Inverter output status when STO is activated ............................................................................ 52
[ 4 ] eCf alarm and inverter-output status ....................................................................................... 53
[ 5 ] Precautions for releasing STO................................................................................................... 54
Appendix H Inverter Replacement Precautions (When Using PWM Converter (RHC series)) ................... 55
H.1 Applicable inverters........................................................................................................................ 55
H.2 Changing the connection method (inverter control power auxiliary input terminals (R0, T0))......... 56

xiii
■Safety precautions
Be sure to read this User's Manual thoroughly prior to installation, wiring (connection), operation, maintenance, or
inspection to ensure correct use of the product. Furthermore, ensure a thorough understanding of device
knowledge, safety information, as well as all related precautions.
Safety precautions contained in this User's Manual have been categorized as follows.
Indicates possible danger, leading to death or serious injury if the product is handled
incorrectly.
Indicates possible danger, leading to minor or moderate injury, or physical property
damage only if the product is handled incorrectly.
Failure to heed the information contained under the CAUTION title may also result in serious consequences.
All items indicate important content and must therefore be observed.
Application
•The FRENIC-MEGA is a piece of equipment used to run three-phase induction motors and synchronous
motors. It cannot be used for single-phase motors or other applications.
Failure to observe this could result in fire or an accident.
•The FRENIC-MEGA cannot be used as is for applications which may have a direct effect on the human body
such as life support machines.
•Strict quality control has been observed in the manufacture of this product, however, safety devices should be
installed when the product is used for equipment which may result in a serious accident or loss in the event of
failure.
Failure to observe this could result in an accident.
Installation
•Install on noncombustibles such as metal.
•Do not install near combustibles.
Failure to observe this could result in fire.
•If using an optional DC reactor, there is a possibility of users coming into contact with main circuit terminal
block parts (live parts). In such cases, take measures such as installing the product in a location where it will
not easily come into contact with people.
Failure to observe this could result in electric shock or injury.
•Do not hold the surface cover when transporting the product.
Failure to observe this could result in injury if the product is dropped.
•Take measures to prevent foreign material such as lint, wastepaper, wood shavings, dust, or metal scraps
getting into the inverter, or adhering to the cooling fan.
•Use the specified screws for changing the mounting base.
Failure to observe this could result in fire or an accident.
•Do not install or run inverters with damaged external or internal parts.
Failure to observe this could result in fire, an accident, or injury.

xiv
Wiring
•If no zero-phase current (earth leakage current) detective device such as a ground-fault relay is installed in
the upstream power supply line in order to avoid the entire power supply system's shutdown undesirable to
factory operation, install a residual-current-operated protective device (RCD)/earth leakage circuit breaker
(ELCB) individually to inverters to break the individual inverter power supply lines only.
•Connect to the power supply via a molded case circuit breaker or earth leakage circuit breaker (with
overcurrent protection function) for each inverter. Use the recommended molded case circuit breaker or
earth leakage circuit breaker, and do not use devices that exceed the recommended capacity.
•Be sure to use the specified wire size.
•Tighten terminals with the prescribed tightening torque.
•If there are multiple inverter and motor combinations, do not use multi-core cables for the purpose of
bundling and storing wiring for multiple combinations.
•Do not install a surge suppressor to the inverter output side (secondary side).
•Be sure to connect an optional DC reactor (DCR) when the capacity of the power supply transformer
exceeds 500 kVA, and is at least 10 times the inverter rated capacity.
Failure to observe this could result in fire.
•Ground the inverter in compliance with the national or local electric code.
•Be sure to ground the inverter ground terminal [*G] grounding wire.
Failure to observe this could result in electric shock or fire.
•Wiring work should be carried out by qualified professionals.
•Carry out wiring work after ensuring that the power has been turned OFF.
Failure to observe this could result in electric shock.
•Always carry out wiring after installing the unit.
Failure to observe this could result in electric shock or injury.
•Ensure that the number of phases and rated voltage of the product input power supply matches that for the
connected power supply.
•Do not connect the power lines to the inverter output terminals (U, V, W).
•When connecting a DC braking resistor (DBR), never connect it to terminals other than terminals P(+) and
DB.
Failure to observe this could result in fire or an accident.
•Control signal lines generally do not have a reinforced insulation coating, and therefore if control signal lines
come into contact with live parts of the main circuit, the insulation coating may be damaged for some
reason. In such a case, there is a danger that high voltage from the main circuit will be applied to the control
signal lines, and therefore care should be taken to ensure that they do not come into contact with live parts
of the main circuit.
Failure to observe this could result in an accident or electric shock.
•Switch all switches after first waiting 5 minutes or longer for units of FRN0115G2S-2G/FRN0060G2□-4G or
lower, or 10 minutes or longer for units of FRN0146G2S-2G/FRN0075G2□-4G or Higher after turning OFF
the power, ensuring that the LED monitor and charge lamp are OFF, and use a device such as a tester to
ensure that the DC intermediate circuit voltage across main circuit terminals P(+) and N(-) has dropped to a
safe level (+25 VDC or less).
Failure to observe this could result in electric shock.
•The inverter, motor and wiring generate electric noise, which may cause nearby sensors and devices to
malfunction. Employ noise countermeasures to prevent malfunction.
Failure to observe this could result in an accident.

xv
Operation
•Be sure to attach the inverter surface cover before turning the power ON. Do not remove the surface cover
while the power is ON.
•Do not operate the unit with wet hands.
Failure to observe this could result in electric shock.
•If the product stops after being tripped when the retry function is selected, depending on the cause of the
trip, the product will restart automatically, and the motor will rotate. Design the machinery so that human
body and peripheral equipment safety is ensured even when the auto-resetting succeeds. Design machines
in such a way as to ensure the safety of the human body and surrounding area even when operation is
resumed.
•There may be times when the stall prevention function (torque limiting) causes the product to run at an
acceleration/deceleration time or speed different from the set values. Design machines in such a way that
safety is ensured even at such times.
Failure to observe this could result in an accident.
•The keypad key is enabled only when keypad operation is selected with function code F02. Please
prepare a separate EMERGENCY STOP button. When function code H96 has been set to “0” or “2”, the
key will be disabled if the operation command method is changed from operation command with the keypad
by selecting link operation "LE".
•If any of the protective functions has been activated, first remove the cause. Then, after checking that all
run commands are set to OFF, release the alarm. If the alarm is released while any run command is set to
ON, the inverter may supply the power to the motor, running the motor.
Failure to observe this could result in an accident.
•By selecting the momentary power failure resume operation (F14 = 3 to 5), operation will resume
automatically following recovery. Design machines in such a way as to ensure operator safety even when
operation is resumed.
•Set function codes after ensuring a sufficient understanding of this User's Manual. If operation is performed
after recklessly changing function code data, the motor may rotate at a torque and speed at which the
machine is unable to tolerate.
•When auto tuning is started, the motor rotates. Conduct a sufficient check to ensure that there is no danger
even when the motor rotates.
Failure to observe this could result in an accident or injury.
•Even if the inverter cuts off the supply of power to the motor, if voltage is being applied to main power
supply input terminals L1/R, L2/S, and L3/T, voltage may be output to inverter output terminals U, V and W.
•Even if the motor is stopped by DC braking operation or pre-excitation operation, voltage will be output to
the inverter output U, V and W terminals.
Failure to observe this could result in electric shock.
•Inverter high-speed operation settings can be specified easily. If settings are changed, use the product after
sufficiently checking the motor and machine specification.
Failure to observe this could result in injury.

xvi
•The cooling fans and braking resistors become very hot. Do not touch.
Failure to observe this could result in burns.
•Mechanical holding is not possible with the inverter brake function.
Failure to observe this could result in injury.
•The digital input terminals are equipped with a function used to start and stop operation or change the
speed command with the "FWD" operation command or "BX" free-run command and so on. Depending on
the digital input terminal status, operation may start suddenly, or the speed may change significantly simply
by changing the function code settings. Make changes to function code settings after sufficiently ensuring
safety.
•With digital input, functions ("SS1, SS2, SS4, SS8", "Hz2/Hz1", "Hz/PID", "IVS", "LE", etc.) used to change
the operation procedure for operation commands or command procedure for speed commands can be
assigned. Depending on the conditions, changes to these signals may result in operation being started
suddenly or the speed changing suddenly.
•Ensure safety before modifying customizable logic related function code settings (U codes and related
function codes) or turning ON the "Cancel customizable logic" terminal command CLC. Depending upon the
settings, such modification or cancellation of the customizable logic may change the operation sequence to
cause a sudden motor start or an unexpected motor operation. Carry out a sufficient safety check
beforehand.
Failure to observe this could result in an accident or injury.
Speed control mode
•If the control constant for the automatic speed regulator (ASR) used with speed control is not at an
appropriate value, even if the operation command is turned OFF, deceleration control may not be
performed, and stop conditions may not be met due to such reasons as hunting caused by a high gain
setting. As a result, operation may continue.
•Hunting due to a high response may occur in the low-speed area when decelerating, the speed detection
value may deviate from the zero speed area before the continuous zero speed control time (F39) has
elapsed, the mode may change to low-speed mode again without stop conditions being met, and operation
may continue.
•If the actual speed deviates from the speed command after adjusting the ASR control constant to an
appropriate value and applying the speed mismatch alarm function, an alarm is tripped, allowing the motor
to be stopped safely. Furthermore, taking measures such as changing the ASR control constant setting
based on the speed, or judging stop speed detection with a speed command value allows the inverter to
successfully control the motor.
Failure to observe this could result in an accident or injury.
Torque control mode
•When performing torque control, in cases such as when the motor is being rotated from the load side with
torque greater than that specified with the torque command, there are times when torque conditions are not
met, and operation continues even when the operation command is turned OFF.
•If wishing to cut the inverter output at such times, take measures such as changing to speed control and
bringing the motor to a decelerated stop, or issuing a coast to stop command.
Failure to observe this could result in an accident or injury.