Fuji Electric Frenic-HVAC Users Manual

24A7-E-0069d

User's Manual

No part of this publication may be reproduced or copied without prior written permission from Fuji Electric Corp. of America.

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.

Preface

Catalog

Instruction Manual

RS Communication User's Manual

This manual provides all the information on the FRENIC-HVAC 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-HVAC. Read them in conjunction with this manual as necessary.

Name Material No. Description

24A1-E-0068

INR-SI47-1707-JE

-485 24A7-E-0021

Product scope, features, specifications, external drawings, and options of the product

Acceptance inspection, mounting & wiring of the inverter, operation using the keypad, running the motor for a test, troubleshooting, and maintenance and inspection

Overview of functions implemented by using FRENIC-HVA C 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.

The latest editions can be downloaded from our Web side at:

http://www.americas.fujielectric.com/components/drives-inverters

Safety precautions

machinery related to nuclear power control, aerospace uses, medical uses or transportation. When the

Read this manual and the FRENIC-HVAC 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-HVAC series of inverters for equipment and

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.

How this manual is organized

This manual contains Chapters 1 through 11 and Appendices.

Chapter 1 ABOUT FRENIC-HVAC

This chapter describes the features and control system of the FRENIC-HVAC 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-HVAC 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.

Chapter 4 SELECTING PERIPHERAL EQUIPMENT

This chapter describes how to use a range of peripheral equipment and options, FRENIC-HVAC's configuration with them, and requirements and precautions for selecting wires and crimp terminals.

Chapter 5 PREPARATION AND TEST RUN

This chapter details the operating environment, storage environment, installation, wiring, basic connection examples, names and functions of the keypad components, operation using the keypad, and test run procedure.

Chapter 6 FUNCTION CODES

This chapter contains overview tables of 12 groups of function codes available for the FRENIC-HVAC series of inverters, function code index by purpose, and details of function codes.

Chapter 7 BLOCK DIAGRAMS FOR CONTROL LOGIC

This chapter provides the main block diagrams for the control logic of the FRENIC-H VA C series of inverters.

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 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.

Chapter 10 MAINTENANCE AND INSPECTION

This chapter provides the instructions on how to perform daily and periodic inspections in order to avoid trouble and keep reliable operation of the inverter for a long time.

iii

Chapter 11 CONFORMITY WITH STANDARDS

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 or operations.



This icon indicates a reference to more detailed information.

This chapter sets forth the conformity with overseas standards.

Appendices

Icons

The following icons are used throughout this manual.

Chapter 1 About FRENIC-HVA C

1.1 Features ..................................................................................................................................................... 1-1

1.2 Inspection of goods and product appearance .................................................................................... 1-13

1.2.1 Inspection of goods ........................................................................................................................ 1-13

1.2.2 Product appearance ....................................................................................................................... 1-15

Chapter 2 SPECIFICATIONS

2.1 Standard Model FRENIC-HVAC .............................................................................................................. 2-1

2.1.1 Three-phase 230 V class series (USA models) .................................................................................... 2-1

2.1.2 Three-phase 460 V class series (USA models) ................................................................................... 2-3

2.1.3 Three-phase 575 V class series (USA models) ................................................................................... 2-6

2.2 Common Specifications .............................................................................................................................. 2-9

2.3 Terminal Specifications ............................................................................................................................. 2-16

2.3.1 Terminal functions ............................................................................................................................ 2-16

2.3.2 Setting up the slide switches ............................................................................................................. 2-26

2.3.3 Screw specifications and recommended wire sizes ........................................................................... 2-28

2.3.3.1 Main circuit terminals ............................................................................................................... 2-28

2.3.3.2 Control circuit terminals (Common to all inverter types) ......................................................... 2-35

2.4 Conduits .................................................................................................................................................... 2- 36

2.4.1 Conduits ............................................................................................................................................ 2-36

2.5 Leakage Current of the EMC Filter........................................................................................................... 2-39

2.6 Derating of Rated Output Current ............................................................................................................. 2-42

2.7 Operating Environment and Storage Environment ................................................................................... 2-44

2.7.1 Operating environment ...................................................................................................................... 2-44

2.7.2 Storage environment ......................................................................................................................... 2-45

2.7.2.1 Temporary storage ..................................................................................................................... 2-45

2.7.2.2 Long-term storage ..................................................................................................................... 2-45

2.8 Precautions for Using Inverters ................................................................................................................. 2-46

2.8.1 Precautions in introducing inverters .................................................................................................. 2-46

2.8.2 Precautions in running inverters ........................................................................................................ 2-50

2.8.3 Precautions in using special motors .................................................................................................. 2-50

2.9 External Dimensions ................................................................................................................................. 2- 51

2.9.1 Standard models ................................................................................................................................ 2- 51

2.9.2 Keypad .............................................................................................................................................. 2-64

2.10 Connection Diagrams ................................................................................................................................ 2-65

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 ............................................................................................................................. 3-3

3.1.3 Equations for selections ...................................................................................................................... 3-6

3.1.3.1 Load torque during constant speed running ................................................................................ 3-6

3.1.3.2 Calculation of acceleration/deceleration time ............................................................................. 3-7

3.1.3.3 Heat energy calculation of braking resistor ............................................................................... 3-10

Chapter 4 SELECTING Peripheral EQUIPMENT

4.1 Configuring the FRENIC-HVAC ................................................................................................................ 4-1

4.2 Currents flowing across the inverter terminals ............................................................................................ 4-2

4.3 Peripheral Equipment .................................................................................................................................. 4-5

4.3.1 Molded case circuit breaker (MCCB), residual-current-operated protective device (RCD)/

earth leakage circuit breaker (ELCB) and magnetic contactor (MC) .................................................. 4-5

4.3.2 Surge killers for L-load ..................................................................................................................... 4-10

4.3.3 Arresters ............................................................................................................................................ 4-11

4.3.4 Surge absorbers ................................................................................................................................. 4-12

4.4 Options ...................................................................................................................................................... 4- 13

4.4.1 Selecting peripheral equipment options ............................................................................................ 4-13

4.4.1.1 Power regenerative PWM converters, RHC series .................................................................... 4-13

4.4.1.2 AC reactors (ACRs) .................................................................................................................. 4-36

4.4.1.3 DC reactors (DCRs) (Built-in or bundled as standard) ............................................................. 4-41

4.4.1.4 Surge suppression unit (SSU) .................................................................................................... 4-43

4.4.1.5 Output circuit filters (OFLs) ...................................................................................................... 4-44

4.4.1.6 Zero-phase reactors for reducing radio noise (ACLs) ............................................................... 4-48

4.4.2 Selecting options for operation and communication ......................................................................... 4-49

4.4.2.1 External frequency command potentiometer ............................................................................. 4-49

4.4.2.2 Extension cable for remote operation ........................................................................................ 4-50

4.4.2.3 Frequency meters ...................................................................................................................... 4-50

4.4.2.4 Inverter support loader software ................................................................................................ 4-51

4.4.3 Selecting Option Cards ..................................................................................................................... 4-52

4.4.3.1 List of option cards, connection ports, and applicable ROM versions ...................................... 4-52

4.4.3.2 Relay output interface card (OPC-RY) ...................................................................................... 4-53

4.4.3.3 Relay output interface card (OPC-RY2) .................................................................................... 4-55

4.4.3.4 Analog interface card (OPC-AIO)............................................................................................. 4-57

4.4.3.5 Analog current output (2 ch) interface card (OPC-AO) ............................................................ 4-61

4.4.3.6 Resistance temperature detector input card (OPC-PT) .............................................................. 4-63

4.4.3.7 CC-Link communications card (OPC-CCL) ............................................................................. 4-66

4.4.3.8 PROFIBUS-DP communications card (OPC-PDP2) ................................................................ 4-68

4.4.3.9 DeviceNet communications card (OPC-DEV) .......................................................................... 4-71

4.4.3.10 CANopen communications card (OPC-COP) ........................................................................... 4-74

4.4.3.11 LONWORKS communications card (OPC-LNW) ................................................................... 4-76

4.4.3.12 Ethernet communications card (OPC-ETH) .............................................................................. 4-77

4.5 Backup Battery .......................................................................................................................................... 4-79

4.5.1 Outline ............................................................................................................................................... 4-79

4.5.2 Loading the battery ........................................................................................................................... 4-80

4.5.3 Battery replacement procedure .......................................................................................................... 4-82

4.5.4 About air transport of batteries .......................................................................................................... 4-82

Chapter 5 PREPARATION AND TEST RUN

5.1 Mounting and Wiring the Inverter ............................................................................................................... 5-1

5.1.1 Installing the inverter .......................................................................................................................... 5-1

5.1.2 Wiring ................................................................................................................................................. 5-4

5.1.2.1 Removing and mounting the front cover and the wiring plate .................................................... 5-4

5.1.2.2 Input ferrite core diameter ........................................................................................................... 5-7

5.1.3 Screw specifications and recommended wire sizes ............................................................................. 5-7

5.1.3.1 Main circuit terminals ................................................................................................................. 5-7

5.1.3.2 Control circuit terminals (Common to all inverter types) ........................................................... 5-7

5.1.4 Conduits .............................................................................................................................................. 5-7

5.1.5 Wiring precautions .............................................................................................................................. 5-8

5.1.6 Wiring of main circuit terminals and grounding terminals.................................................................. 5-9

5.1.7 Wiring for control circuit terminals ................................................................................................... 5-16

5.1.8 Setting up the slide switches ............................................................................................................. 5-19

5.1.9 USB port ........................................................................................................................................... 5-20

5.2 Mounting and Connecting a Keypad ......................................................................................................... 5-21

5.2.1 Parts required for connection ............................................................................................................ 5-21

5.2.2 Mounting procedure .......................................................................................................................... 5-21

5.3 Operation Using the Keypad ..................................................................................................................... 5-24

5.3.1 LCD monitor, keys and LED indicators on the keypad ..................................................................... 5-24

5.4 Overview of Operation Modes .................................................................................................................. 5-28

5.5 Running Mode .......................................................................................................................................... 5-29

5.5.1 Monitoring the running status ........................................................................................................... 5-29

5.5.2 Setting up frequency and PID commands ......................................................................................... 5-32

5.5.3 Running/stopping the motor .............................................................................................................. 5-36

5.5.4 Remote and local modes ................................................................................................................... 5-36

5.5.5 Changing from keypad operation to external signal (terminal block) operation ............................... 5-37

5.5.6 Monitoring light alarms ..................................................................................................................... 5-37

5.6 Programming Mode .................................................................................................................................. 5-38

5.6.1 Quick Setup ....................................................................................................................................... 5-40

5.6.2 Start-up .............................................................................................................................................. 5-40

5.6.2.1 Set Display Language ................................................................................................................ 5-41

5.6.2.2 Function-Specific Initialization ................................................................................................. 5-42

5.6.2.3 Date/Time Settings .................................................................................................................... 5-42

5.6.2.4 Set Display ................................................................................................................................ 5-45

5.6.3 Function Codes ................................................................................................................................. 5-46

5.6.3.1 Setting up function codes .......................................................................................................... 5-47

5.6.3.2 Confirm Data ............................................................................................................................. 5-49

5.6.3.3 Confirm Changed Function Code .............................................................................................. 5-49

5.6.3.4 Copying data ............................................................................................................................. 5-49

5.6.3.5 Set Timer Operation .................................................................................................................. 5-61

5.6.3.6 Initialize Data ............................................................................................................................ 5-64

5.6.4 Inverter Information .......................................................................................................................... 5-65

5.6.4.1 Confirm Power Level ................................................................................................................ 5-65

5.6.4.2 Confirm Operational Status ....................................................................................................... 5-66

5.6.4.3 Check Status of Input/Output Signal ......................................................................................... 5-69

5.6.4.4 View Maintenance Information ................................................................................................. 5-71

5.6.4.5 View Unit Information .............................................................................................................. 5-75

5.6.5 Alarm Information ............................................................................................................................ 5-76

5.6.5.1 Confirm Alarm History ............................................................................................................. 5-76

5.6.5.2 Confirm Light Alarm History .................................................................................................... 5-80

5.6.5.3 Retry History ............................................................................................................................. 5-80

5.6.6 User Config ....................................................................................................................................... 5-81

5.6.6.1 Quick Setup ............................................................................................................................... 5-81

5.6.6.2 Password ................................................................................................................................... 5-81

5.6.7 Tools .................................................................................................................................................. 5-85

5.6.7.1 Monitor PID Control Status ...................................................................................................... 5-85

5.6.7.2 Monitor Multiple Unit Controls ................................................................................................ 5-88

5.6.7.3 Monitor Customized Logic (CLogic) ........................................................................................ 5-91

5.6.7.4 Resonance Avoidance ................................................................................................................ 5-92

5.6.7.5 Load Factor Measurement ......................................................................................................... 5-93

5.6.7.6 Communication Debug ............................................................................................................. 5-96

5.7 Alarm Mode .............................................................................................................................................. 5-97

5.7.1 Releasing the alarm and switching to Running mode ....................................................................... 5-97

5.7.2 Displaying the alarm history ............................................................................................................. 5-97

5.7.3 Displaying the status of inverter at the time of alarm ....................................................................... 5-97

5.7.4 Test run procedure ............................................................................................................................. 5-98

vii

5.7.5 Checking prior to powering ON ........................................................................................................ 5-99

5.7.6 Powering ON and checking............................................................................................................. 5-100

5.7.7 Selecting a desired motor drive control ........................................................................................... 5-100

5.7.8 Function code basic settings < 1 > .................................................................................................. 5-101

5.7.9 Function code basic settings and tuning < 2 > ................................................................................ 5-103

5.7.10 Running the inverter for motor operation check ............................................................................. 5-106

5.7.11 Preparation for practical operation .................................................................................................. 5-107

Chapter 6 FUNCTION CODES

6.1 Overview of Function Codes ...................................................................................................................... 6-1

6.2 Function Code Tables .................................................................................................................................. 6-2

6.3 Details of Function Codes ......................................................................................................................... 6-41

6.3.1 F codes (Fundamental functions) ...................................................................................................... 6-41

6.3.2 E codes (Extension terminal functions) ............................................................................................. 6-84

6.3.3 C codes (Control functions) ............................................................................................................ 6-125

6.3.4 P codes (Motor 1 parameters) ......................................................................................................... 6-137

6.3.5 H codes (High performance functions) ........................................................................................... 6-141

6.3.6 H1 codes (High performance functions) ......................................................................................... 6-174

6.3.7 J codes (Application functions 1) .................................................................................................... 6-181

6.3.8 J1 codes (PID control 1) .................................................................................................................. 6-182

6.3.9 J2 codes (PID control 2) .................................................................................................................. 6-215

6.3.10 J5 codes (External PID control 1) ................................................................................................... 6-217

6.3.11 J6 codes (External PID control 2, 3) ............................................................................................... 6-245

6.3.12 d codes (Application functions 2) ................................................................................................... 6-249

6.3.13 U codes (Customizable logic functions) ......................................................................................... 6-249

6.3.14 U1 codes (Customizable logic functions) ....................................................................................... 6-270

6.3.15 y codes (Link functions) .................................................................................................................. 6-275

6.3.16 T codes (Timer functions) ............................................................................................................... 6-280

6.3.17 K codes (Keypad functions) ............................................................................................................ 6-284

Chapter 7 BLOCK DIAGRAMS FOR CONTROL LOGIC

7.1 Symbols Used in Block Diagrams and their Meanings ............................................................................... 7-1

7.2 Frequency Command Block ........................................................................................................................ 7-2

7.3 Drive Command Block ............................................................................................................................... 7-4

7.4 V/f Control Block ....................................................................................................................................... 7-5

7.5 PID Process Control Block ......................................................................................................................... 7-7

7.6 External PID Process Control Block ........................................................................................................... 7-9

7.7 FM1/FM2 Output Selector ........................................................................................................................ 7-11

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 communication ........................................................................... 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 USB port on the inverter unit .............................................................................................................. 8-9

Chapter 9 TROUBLESHOOTING

viii

9.1 Protective Functions .................................................................................................................................... 9-1

9.2 Before Proceeding with Troubleshooting .................................................................................................... 9-2

9.3 If an Alarm Code Appears on the Monitor .................................................................................................. 9-3

9.3.1 Alarm Codes ....................................................................................................................................... 9-3

9.3.2 If the "Light Alarm" Indication Appears ........................................................................................... 9-22

9.4 Nothing appears on the monitor ................................................................................................................ 9-24

9.4.1 Abnormal motor operation ................................................................................................................ 9-24

9.4.2 Problems with inverter settings ......................................................................................................... 9-31

9.5 If Other than an Alarm Code is Displayed ................................................................................................ 9-33

Chapter 10 MAINTENANCE AND INSPECTION

10.1 Daily Inspection ........................................................................................................................................ 10-1

10.2 Periodic Inspection .................................................................................................................................... 10-1

10.3 List of Periodic Replacement Parts ........................................................................................................... 10-3

10.3.1 Judgment on service life .................................................................................................................... 10-4

10.4 Measurement of Electrical Amounts in Main Circuit ............................................................................... 10-8

10.5 Insulation Test ........................................................................................................................................... 10-9

10.6 Cooling Fan Replacement Procedure ...................................................................................................... 10-10

Chapter 11 CONFORMITY WITH STANDARDS

11.1 Compliance with European Standards ...................................................................................................... 11-1

11.1.1 Conformity to the Low Voltage Directive in the EU ......................................................................... 11-2

11.1.2 Compliance with EMC Standards ..................................................................................................... 11-8

11.1.2.1 General ...................................................................................................................................... 11-8

11.1.2.2 Recommended installation procedure ....................................................................................... 11-8

11.1.2.3 Leakage current of the EMC filter........................................................................................... 11-10

11.1.3 Harmonic Component Regulation in the EU .................................................................................. 11-14

11.1.3.1 General .................................................................................................................................... 11-14

11.1.3.2 Compliance with IEC/EN 61000-3-2 ...................................................................................... 11-14

11.1.3.3 Compliance with IEC/EN 61000-3-12 .................................................................................... 11-14

11.2 Conformity with UL Standards and cUL-listed for Canada .................................................................... 11-15

11.2.1 General ............................................................................................................................................ 11-15

11.2.2 Conformity with UL standards and cUL-listed for Canada ............................................................. 11-15

Appendices

App. A Advantageous Use of Inverters (Notes on electrical noise) ................................................................... 1

A.1 Effect of inverters on other devices ........................................................................................................ 1

A.2 Noise ...................................................................................................................................................... 3

A.3 Noise prevention .................................................................................................................................... 5

App. B Effect on Insulation of General-purpose Motors Driven with 400 V Class Inverters .......................... 13

B.1 Generating mechanism of surge voltages ............................................................................................. 13

B.2 Effect of surge voltages ........................................................................................................................ 14

B.3 Countermeasures against surge voltages .............................................................................................. 14

B.4 Regarding existing equipment .............................................................................................................. 15

App. C Inverter Generating Loss ...................................................................................................................... 16

App. D Connection Notes at Inverter Replacement Time

(Using the high power factor PWM converter, RHC series) ........................................................................ 18

Chapter 1

About FRENIC-HVAC

This chapter describes the features, control system, outer appearance and recommended configuration of peripheral equipment for FRENIC-HVAC.

Contents

1.1 Features ...................................................................................................................................................... 1-1

1.2 Inspection of goods and product appearance ........................................................................................... 1-13

1.2.1 Inspection of goods ......................................................................................................................... 1-13

1.2.2 Product appearance ......................................................................................................................... 1-15

Chap. 1

About FRENIC



1 to 60 HP ( Three-phase 230V series )

■

●4PID control

●Password function

●Fire mode (Forced operation)

●Filter clogging prevention function

●Pick-up operation function

●Automatic energy-saving operation

●Customizable logic

●Wet-bulb temperature presumption control

●Regenerative avoidance control

●Linearization function

●Real time clock

●Torque vector control

●Overload avoidance control

●Commercial operation switching

●Command loss detection

●Low torque detection

●Slow flowrate stop function

1.1 Features

 Overview

FRENIC-HVAC is Fuji Electric’s first “slim-type inverter specially designed for saving energy.”

The device is ideal for all kinds of applications related to systems for supplying water and treating wastewater.

Achieving significant energy savings in HVAC by the optimal control.

Wide capacity range

∙ 1 to 125 HP / 230V

∙ 1 to 1000 HP / 460V

∙ 1 to 300 HP / 575V

Protective structure

∙ NEMA UL type1/ type12

∙ Open type

Equipped with DC reactor (DCR) / EMC filter

Inverter capacity EMC filter DC reactor Enclosure

1 to 125 HP ( Three-phase 460V series ) 1 to 150 HP ( Three-phase 575V series )

075 to 125 HP ( Three-phase 230V series ) 150 to 1000 HP ( Three-phase 460V series ) 200 to 300 HP ( Three-phase 575V series )

Built-in Built-in

Built-in

Standard

accessory

NEMA UL

type1 / type12

Open

-HVAC

DCR：IEC/EN 61000-3-2, IEC/EN 61000-3-12

Functions suitable for HVAC use

1-1



PID１　PV

PI D１　SV

偏差最大選択最小選択

プロセス指令値

フィードバック値

SV：Set Value PV：Process Value

PID

調節器

正動作/

逆動作

演算器

速度指令

選択

PID制御

キャンセル

外部PID1出力

積分・微分リセット

積分ホールド

アンチリセットワインドアップ

フィードバック

選択

PID2　PV

PID2　SV

プロセス指令値

PID

調節器

速度指令

選択

PID制御

キャンセル

外部PID2出力

正動作/

逆動作

積分・微分リセット

積分ホールド

アンチリセットワインドアップ

フィードバック

選択

PID3　PV

PID3　SV

プロセス指令値

PID

調節器

正動作/

逆動作

PID制御

キャンセル

外部PID3出力

積分・微分リセット

積分ホールド

アンチリセットワインドアップ

速度指令

選択

External PID output

∙

Feedback value

Computing Process command value

Feedback selection

Process command value

Integral hold

Integral/differential reset

Anti

Integral hold

Integral/differential reset

Anti

Integral hold

Integral/differential reset

Anti

Speed

selection

regulator

reverse

Deviation

External PID1 output

Cancel PID

control 1

Feedback selection

control 2

Cancel PID

control 3

Speed

selection

Forward/

reverse

Forward/

reverse

External PID1 output

PID

regulator

PID

SV: Set Value PV: Process Value

Process command value

Speed

PID１　PV

演算器

PI D１　SV

フィードバック

選択

偏差最大選択最小選択

PID制御2/1切換

PID

調節器

アンチリセットワインドアップ

積分ホールド

積分・微分リセット

速度指令

選択

渇水保護

少水量停止機能

大水量保護

高頻度運転保護

フィルタ目詰まり/噛み込み防止

正動作/

逆動作

PID制御

キャンセル

周波数指令

PID2　PV

PID2　SV

プロセス指令値

フィードバック値

プロセス指令値

SV：Set Value PV：Pr ocess Value

フィードバック値

PID

Speed

command

PID

PID2

Computing

Process command value

Feedback

Process command value Feedback value

Feedback value

PID control 2/1 switching

PID control

Frequency command

PID

regulator

Forward/ reverse

Integral hold

Integral/differential reset

Anti

Dry pump detection

Slow flow rate stop function

End of curve detection

Control of maximum starts per hour

PID2

4PID control (standardly equipped with 4PID)

∙ PID control (for process)

Can be used by switching 2 types of process commands and feedback value. “Filter clogging /

anti-jam, deviation alarm / absolute value alarm output” have been added to PID regulator that

conducts temperature, pressure or flow rate control, etc. An anti-reset wind-up function to

prevent PID control overshoot and PID control function that can be easily adjusted by PID

limiter or integral fold / reset signal are furthermore employed.

PID control (process) block diagram

selection

1 SV

unit

-reset wind-

selection

Filter clogging / anti-jam

∙ External PID control (process)

Equipped with 3 built-in external PID controllers. You can independently control external

actuators such as dampers and valves. An externally mounted PID controller is no longer

required, thereby enabling cost reduction.

External PID control (process) block diagram

command

-reset wind-up

Forward/

PID

Max. selection

Min. selection

command

-reset wind-up

Cancel PID

unit

command

selection

-reset wind-up

regulator

cancel

Y1-Y4 pins

⇒Pulse output

FM1/FM2 pins

⇒Analog output

1-2

Chap. 1

About FRENIC

Power source voltage

Rotation speed

Output frequency

Current

Instantaneous power failure

● Fire Mode (forced operation)

Alarm is ignored and operation continues

until the inverter is damaged, and evacuation

route is secured without smoke permeation.

Pick-up operation function (speed sensor)

Smooth start by pick-up function.

If operating fan while operating without a load

when the inverter is not operating, pick-up is

executed smoothly by searching for speed

regardless of rotation direction. Convenient

function when instantaneously switching from

commercial power supply to inverter or

restarting from instantaneous power failure.

1.1 Features

-HVAC

1-3

Item

Content

Logic function

scale conversion

General-purpose timer

On-delay, off-delay, pulse train, etc. Time setting: 0.0–600s

Input/output signal

Terminal input/output, inverter control function

Others

Can comprise up to 14 steps, with each step input/output occurring in

having the LCD monitor.

(AND circuit + on-delay timer)

(Multiplication circuit + vertical limiter)

(Deviation comparison 2)

(Up counter)

(Conversion 1)

Y3 pin output

12 pin

C1 pin

U04 U05 + - U09

Step 2

Step 1

Step 2

Example: Digital (AND + on

Example: Analog (subtraction + comparison 5)

Fref 0.00Hz

PRG>6>4

Step01:0021

RESET:Back to M

Fref 0.00Hz

PRG>6>4

Step01:2052

RESET:Back to M

Fref 0.00Hz

PRG>6>4

Step01:0110

RESET:Back to M

Fref 0.00Hz

PRG>6>4

Step01:2151

RESET:Back to M

Fref 0.00Hz

PRG>6>4

Step01:3001

RESET:Back to M

Fref 0.00Hz

PRG>6>4

Step01:2003

● Customizable logic

The customizable logic interface function is provided to the inverter body. This enables forming

of logic circuit and arithmetic circuit to the digital and analog input and output signals, allowing

simple relay sequence to be built while processing the signals freely.

-delay timer)

AND, OR, XOR, flip-flop, rise/fall detection, counter, etc.

Addition, subtraction, multiplication, limiter, absolute value, inverted addition, comparison, max. value selection, min. value selection, avg.,

combination You can check the input/output status of the various steps by the keypad

< LCD monitor example >

* Numerical values of the screen display are not the same as in actual circumstances.

Digital + digital + timer

Analog + analog + limiter

Digital + digital + counter

Function code + scale conversion Analog + 1 input + conversion

1-4

Analog + analog + comparison

Chap. 1

About FRENIC

When operation is performed in the

When operation schedule varies

Run command

Rotation speed

DC intermedi ate circuit voltage

Current

Time

Load status

Inverter temperature

Output frequency

OH trip

Time

1.1 Features

● Trip-less by regenerative avoidance control (effective for acceleration, deceleration

and fixed speed)

Because amount of energy to be regenerated to the inverter is limited and

acceleration/deceleration time is controlled, equipment can be operated without overvoltage trip.

<Example: Operation when decelerating>

-HVAC

● Standardly equipped with Real time clock (RTC)

∙ Alarm information date/time display ∙ Timer operation function ∙ You can set up to 4 timers by units of 1 week. ∙ Holiday setting (20 days a year) is also possible. ∙ Daylight saving time auxiliary function ∙ Battery (optional) * Battery connection status displayed on the LCD monitor.

same schedule through a week

depending on the day of the week

● Continued operation of equipment by overload avoidance control

If the inverter becomes overloaded in the case where inverter internal temperature rises radically from increased load or ambient temperature rises abnormally, operation is continued by reducing the load by reducing motor speed.

1-5

ELCB or MCCB

Power

On/Off Commercial/inverter

Built-in

Analog

equency

command

Command

loss detection

[REF OFF]

Time

Torque computation value

Low torque detection level

Time

Power

Transistor output

Broken

belt!

Regular frequency setting

Output

frequency

● Commercial operation switching

Because the inverter is equipped with a commercial frequency start processing function for

switching commercial / inverter operation by external sequence, peripheral equipment

configuration can be simplified. The inverter is equipped with 2 types of commercial operation

switching sequences: Fuji standard and inverter alarm automatic commercial switching

sequence.

FRENIC-HVAC

sequence

● Operation signal trouble is also avoided by command loss detection function.

If the frequency signal connected to the inverter (0 - 10V, 4 - 20 mA, multiple stage speed

operation signal, communication, etc.) is blocked, the fact that frequency command has been

lost is output as a “command loss” signal. You can furthermore set output frequency for

command loss in advance, so the equipment can continue to operate even if the frequency

signal is cut off by mechanical vibration, etc.

● Low torque detection also possible

If a problem such as fan belt breaking and load connected to the motor becomes exponentially

lighter all of a sudden, detects that torque has dropped and outputs it as an output signal.

Abnormal status of the equipment can be detected using this signal, so it can be utilized as

equipment maintenance information.

1-6

Chap. 1

About FRENIC



Inverter control (V/f control)

Required

Example of features when using damper or valve

Energy conservation effect

Air flow or flow rate (%)

Inverter control (For automatic energy control)

● Password function

Function codes can be read/write, displayed or hidden by setting the two passwords. This

prevents erroneous operation or overwriting of function codes. In addition, if a wrong password

was input exceeding the specified number of times, the inverter is restricted from operating as

the user is regarded as improper.

1.1 Features

-HVAC

● Filter clogging prevention function

This function detects clogging of the fan filter with dust or other materials using the output

current and pressure sensor value. When clogging is detected, the fan is rotated in reverse

to eject dust, and then resumes rotation in forward to blow air. In addition, the function notifies

you of maintenance necessity with the alarm signal.

Equipped with function that contributes to energy conservation.

 Automatic energy-saving operation

Considering that fact that “control that minimizes motor loss” has evolved and the loss of the inverter itself, the device has been “equipped with a new type of control to minimize loss of the motor plus the inverter” to further conserve electric power for fan and pump applications.

power (%)

*Effect differs according to motor characteristics

Example of energy saving effect characteristics

1-7

● Wet-bulb temperature presumption control

This function is optimal for controlling the fan of cooling tower. Since the wet-bulb temperature

would become higher than the set temperature when the air temperature is particularly high,

water temperature will not reach the set temperature. Therefore, the fan keeps rotating at high

speed, failing in energy-saving operation. FRENIC-HVAC automatically estimates

the wet-bulb temperature and controls the fan so that the cooling water is interlocked with the air

temperature in order not to use unnecessary electric power.

1-8

Chap. 1

About FRENIC





Refrigeration machine

● Linearization function

This function estimates the target pressure using the load flow rate, which allows the estimated

terminal pressure to be controlled. For an air-conditioning heat source system, the needed

quantity of the cooling or heating water fluctuates generally in seasons or days and nights.

Therefore, operations continuing in a water conveyance pressure constant control may lead to

high operating unnecessary pressures on terminals at low operating state. Thus, the pump

consumes an ineffectual electric power for maintaining the high water conveyance pressure.

↓

Based on the calculated value and water conveyance pressure of estimated terminal pressure

using the detected load flow rate, PID control is performed.

↓

It is possible to reduce the ineffectual pump power consumption and to achieve a great

energy-saving effect together with maintaining comfortable current air conditioning.

1.1 Features

-HVAC

Enhanced network support

Standard equipment

∙ Modbus RTU ∙ Metasys N2 ∙ BACnet

Optional cards

∙ PROFIBUS-DP ∙ CC-Link ∙ DeviceNet ∙ CANopen

∙ LONWORKS ∙ Ethernet

1-9





Item

Objective

Motor cumulative

Keeps track of time that equipment (motor) using the inverter is actually running.

pulleys.

Startup count (times)

Counts the number of times the inverter is turned on and off.

machinery when turned on and off.



Simple and enhanced maintenance / enhanced protective functions.

Information concerning life of consumable inverter parts is displayed.

Main circuit capacitance

Cooling fan cumulative running time

(Equipped with cooling fan ON/OFF

control compensation)

Inverter cumulative running time

Electrolytic capacitors on PC board

Cumulative running time

Life warning signal can be output to transistor output.

Output when the end of service life of main circuit capacitors, electrolytic capacitors on PC board,

cooling fan, or real time lock battery (optional) approaches.

Information taking equipment maintenance into account is also displayed.

Information is added to maintenance information for the inverter itself and information taking

equipment maintenance into account is also displayed.

running time (h)

(Usage example) If used for fan control, it approximates the time for replacement of belts used for

(Usage example) Because it keeps a record of how many times the equipment is turned on and off, it approximates the times for replacement of equipment parts that place a load on

You can check alarm history for the past 10 times (latest and 9 past times).

Detailed information can also be checked for the past 4 times.

If using a real time clock, you can check the date and time of occurrence.

Employs detachable interface board (terminal block for control signal line)

1-10

Chap. 1

About FRENIC



PTC thermistor

Comparator

External alarm

Resistor

(Power level)

Press knob inward.

Lift carefully.

Disconnect the connector.

Remove the cooling fan (with case).

Remove cooling fan cable (connector). Remove and replace the fan case and cooling fan.

1.1 Features

Motor protection by PTC thermistor

By connecting the Positive Temperature Coefficient (PTC) thermistor embedded in the motor to

the C1 pin, motor temperature is detected to protect the motor by shutting off the inverter before

the motor overheats. You can select whether to shut off the inverter (stop by alarm) or output

alarm from transistor output by PTC protection level.

Control circuit>

-HVAC

Easy cooling fan replacement

Employs configuration that allows the fan to be mounted or dismounted by one simple operation

to facilitate cooling fan replacement. (For the detailed replacement procedure, refer to Chapter 10,

Section 10.6 "Cooling Fan Replacement Procedure.")

Cooling fan replacement procedure

1-11



Language

English

Chinese

German

French

Spanish

Italian

Russian

Greek

Turkish

Malay

Vietnamese

Thai

Indonesian

Polish

Czech

Swedish

Portuguese

Dutch

Japanese

Equipped with keypad employing large LCD.

∙ Realizes regulator display by enlargement of LCD.

1. Present value (PV) 6. Output voltage

2. Setting value (SV)

3. Manipulating value (MV)

4. Frequency 9. Power consumption

5. Output current 10. Cumulative energy

7. Torque

8. Rotation speed

Unit setting function enables easy-to-understand display.

∙ Multi-language supported: 19 languages + user customized language

1-12

Chap. 1

About

1.2 Inspection of goods and product appearance

1.2.1 Inspection of goods

Unpack the package and check the following:

(1) An inverter and the following accessories are contained in the package.

Accessories: Instruction manual and CD-ROM manual

(2) The inverter has not been damaged during transportation—there should be no dents or parts

missing.

(3) The inverter is the type you ordered. You can check the type and specifications on the main

nameplate. (A total of four nameplates and warning plates are attached to the inverter as shown below.)

FRENIC-HVAC

①Type: Inverter type

“Nominal applied motor” for USA models are represented in the HP unit.

1-13

The alphabetical character that indicates protective structure goes in .

②Source: Input power source specifications

No. of input phases (3PH in the case of 3 phases), input voltage, input frequency, input current

③Output: Inverter output specifications

No. of output phases, rated output voltage, output frequency range, output rated capacity,

rated output current, overload current rating

④IP Code: Protective structure

⑤⑥Ser. No: Serial No. / Mfg. Year/week

Ｗ１８Ａ１２３Ａ０００１ＡＡ０３９

The first week of mfg. week / January is “01.” This indicates which week it corresponds to.

Mfg. year / last digit of year

⑦Mass: Mass

Inverter type is indicated as "FRN***AR1-2U/4U/5U" in the various tables in this document.

If there is something you do not understand about the product or there is something wrong with it, please contact the dealership from where you purchased it or your nearest Fuji Electric sales office.

1-14

Chap. 1

About

Fig. 1.1 FRN001AR1M-4U (NEMA/UL type1)

Fig. 1.2 FRN300AR1S-4U (UL open type)

Cooling fan

Front cover

Caution label

Ratings label

Main circuit terminal block

Control circuit terminal block

Front cover

Front cover mounting screw

Keypad

Internal agitator fan

1.2.2 Product appearance

1.2 Inspection of goods and product appearance

FRENIC-HVAC

Note: Refer to external drawings in chapter 2 for other capacities.

1-15

Chapter 2

SPECIFICATIONS

This chapter describes specifications of the output ratings, control system, and terminal functions for the FRENIC-HVAC series of inverters. It also provides descriptions of the operating and storage environment, precautions for using inverters, external dimensions, examples of basic connection diagrams, and details of the protective functions.