Fuji Electric Frenic-HVAC Users Manual

24A7-E-0069d

User's Manual

Copyright © 2012-2016 Fuji Electric Corp. of America All rights reserved.

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

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
	Catalog	24A1-E-0068	Product scope, features, specifications, external
			drawings, and options of the product
			Acceptance inspection, mounting & wiring of the
	Instruction Manual	INR-SI47-1707-JE	inverter, operation using the keypad, running the motor
			for a test, troubleshooting, and maintenance and
			inspection
			Overview of functions implemented by using
	RS-485	24A7-E-0021	FRENIC-HVAC RS-485 communications facility, its
	Communication		communications specifications, Modbus RTU/Fuji
	User's Manual		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

i

Safety precautions

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 machinery related to nuclear power control, aerospace uses, medical uses or transportation. When the product is to be used with any machinery or equipment on which lives depend or with machinery or equipment which could cause serious loss or damage should this product malfunction or fail, ensure that appropriate safety devices and/or equipment are installed.

ii

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-HVAC 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 chapter sets forth the conformity with overseas standards.

Appendices

Icons

The following icons are used throughout this manual.

This icon indicates information which, if not heeded, can result in the inverter not operating to full efficiency, as well as information concerning incorrect operations and settings which can result in accidents.

This icon indicates information that can prove handy when performing certain settings or operations.

This icon indicates a reference to more detailed information.

iv

CONTENTS

Chapter 1 About FRENIC-HVAC

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
				v

4.3.1Molded 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

vi

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

ix

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

1.1 Features

1.1Features

 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 60 HP ( Three-phase 230V series )				NEMA UL
1 to 125 HP ( Three-phase 460V series )		Built-in	Built-in
				type1 / type12
1 to 150 HP ( Three-phase 575V series )
075 to 125 HP ( Three-phase 230V series )			Standard
150 to 1000 HP ( Three-phase 460V series )		Built-in		Open
			accessory
200 to 300 HP ( Three-phase 575V series )
	DCR IEC/EN 61000-3-2, IEC/EN 61000-3-12

■ Functions suitable for HVAC use

●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
●Low torque detection
●Slow flowrate stop function

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<![endif]>HVAC-FRENIC About 1 .Chap

1-1

 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

SV Set Value

PV Process Value

Speed

command

selection

Frequency

Process command value

+

command

PID1 SV

PIDPIDcontrol2/12/1 switching

PIDPIDcontrol

-

cancel

PID1 PVPV					Forward/	PID
					reverse	regulator
							Slow flow rate
	Computing						stop function
		Feedback value			Integral hold
	unit						Dry pump
					Integral/differential reset
	Process						detection
			+		Anti-reset wind-up		End of curve
	command value
PID2 SVSV							detection
			-				Control of maximum
							starts per hour
PID2PVPV	Feedback
	selection		Feedback value			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

External PID output

∙ Y1-Y4 pins

Speed

command

Pulse output

SV: SetValue

selection

PID

PV: ProcessValue

Cancel PID

∙ FM1/FM2 pins

Anti-reset wind-up

Process command value +

Integral/differential reset

control 1

Analog output

PID SV

Integral hold

		-	/	PID
			Forward/		External	output
			reverse	regulator
					PID1
PID PV
				Speed
			Deviation
			Max. selection
	Computing			command
			Min. selection	selection
					PID
	unit	Feedback value
					Cancel PID
			Anti-reset wind-up		control 2
	Process command		Integral/differential reset
	+		Integral hold
PID2 SV	value
		-	Forward//	PPID	ExternalPID2PID1 output
			reverse	regulator
PID2 PV	Feedback
	selection
				Speed
				command
				selection	PID
					Cancel PID
	Process command value +
			Anti-reset wind-up
PID3 SV			Integral/differential reset		control 3
		-
			Integral hold
			Forward//	PIDD
PID3 PV	Feedback		reverse	regulator	ExternalPID3PID1 output
	selection

1-2

1.1Features

● 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.

	Power
	source			Instantaneous
	voltage
				power failure
	Rotation
	speed
	Output
	frequency

Current

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●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.

Example: Digital (AND + on-delay timer)

Example: Analog (subtraction + comparison 5)

Step 2

Step 1

			Step 2
	+	U04
12 pin			Y3 pin
	-	U05	output
C1 pin			U09

Item	Content
Logic function	<Digital>
	AND, OR, XOR, flip-flop, rise/fall detection, counter, etc.
	<Analog>
	Addition, subtraction, multiplication, limiter, absolute value, inverted
	addition, comparison, max. value selection, min. value selection, avg.,
	scale conversion
General-purpose	On-delay, off-delay, pulse train, etc.
timer	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
	combination
	You can check the input/output status of the various steps by the keypad
	having the LCD monitor.

<LCD monitor example >

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

Digital + digital + timer	Analog + analog + limiter	Analog + analog + comparison
(AND circuit + on-delay timer)	(Multiplication circuit + vertical limiter)	(Deviation comparison 2)

Fref	0.00Hz		Fref	0.00Hz		Fref	0.00Hz
PRG>6>4			PRG>6>4			PRG>6>4
Step01:0021			Step01:2003			Step01:2052

RESET:Back to M

RESET:Back to M

RESET:Back to M

Digital + digital + counter

Function code + scale conversion

Analog + 1 input + conversion

(Up counter)

(Conversion 1)

Fref

0.00Hz

Fref

0.00Hz

Fref

0.00Hz

PRG>6>4

PRG>6>4

PRG>6>4

Step01:0110

Step01:2151

Step01:3001

RESET:Back to M

RESET:Back to M

RESET:Back to M

1-4

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>

Run command

Rotation speed

DC intermedi ate circuit voltage

Current

Time

●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.

When operation is performed in the		When operation schedule varies
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.

Load status

OH trip

Inverter temperature

Output frequency

Time

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●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.

ELCB or

MCCB

Power	FRENIC-HVAC

Built-in

On/Off sequence

Commercial/inverter

●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.

Analog frequency command

Command
loss detection			Regular frequency
[REF OFF]			setting
Output
frequency
				Time

●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.

Torque computation value

Low torque detection level

Power

Time

Broken

belt!

Transistor output

1-6

1.1 Features

	●Password function	<![if ! IE]> <![endif]>1 .Chap
	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
		<![if ! IE]> <![endif]>About
	was input exceeding the specified number of times, the inverter is restricted from operating as
	the user is regarded as improper.	<![if ! IE]> <![endif]>HVAC-FRENIC

●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.

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Example of features when using damper or valve

Energy conservation effect

Inverter control (V/f control)

Inverter control

(For automatic energy control)

Air flow or flow rate (%)

*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

1.1 Features

	● Linearization function	<![if ! IE]> <![endif]>1 .Chap
	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
		<![if ! IE]> <![endif]>About
	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	<![if ! IE]> <![endif]>-FRENIC
	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.
	↓	<![if ! IE]> <![endif]>HVAC
	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.

Refrigeration machine

Enhanced network support

 Standard equipment

∙ Modbus RTU	∙ Metasys N2	∙ BACnet
 Optional cards
∙ PROFIBUS-DP	∙ CC-Link	∙ DeviceNet	∙ CANopen
∙ LONWORKS	∙ Ethernet

1-9

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	Electrolytic capacitors on PC board
time	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.

Item	Objective
Motor cumulative	Keeps track of time that equipment (motor) using the inverter is actually running.
running time (h)	(Usage example)
	If used for fan control, it approximates the time for replacement of belts used for
	pulleys.
Startup count (times)	Counts the number of times the inverter is turned on and off.
	(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
	machinery when turned on and off.

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)

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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>
		Resistor
				(Power level)
							<![if ! IE]> <![endif]>Comparator
PTC										External
thermistor										alarm

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

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.

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Equipped with keypad employing large LCD.

∙ Realizes regulator display by enlargement of LCD.

1.	Present value (PV)	6. Output voltage
2.	Setting value (SV)	7. Torque
3.	Manipulating value (MV)	8. Rotation speed
4.	Frequency	9. Power consumption
5.	Output current	10. Cumulative energy

Unit setting function enables easy-to-understand display.

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

Language

English	Chinese	German	French	Spanish
Italian	Russian	Greek	Turkish	Malay
Vietnamese	Thai	Indonesian	Polish	Czech
Swedish	Portuguese	Dutch	Japanese

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1.2 Inspection of goods and product appearance

1.2Inspection of goods and product appearance

1.2.1Inspection 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.)

Type: Inverter type

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

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Source: Input power source specifications

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

Output: Inverter output specifications

No. of output phases, rated output voltage, output frequency range, output rated capacity, rated output current, overload current rating

IP Code: Protective structure

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

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

Mfg. year / last digit of year

Mass: Mass

Inverter type is indicated as "FRN***AR1-2U/4U/5U" in the various tables in this document. The alphabetical character that indicates protective structure goes in .

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.

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