EC FAN PFP OPERATING MANUAL - Nicotra Gebhardt

Rev. 1 - 08/10/2021

EC FAN PFPOPERATING MANUAL

Regal Beloit Italy S.p.A.

Via Modena, 1824040 Ciserano (BG) ITALYPhone +39 035 873 111Fax +39 035 884 319www.regalbeloit.com

Rev. 1 - 08/10/2021

OPERATING MANUALOPERATING MANUALENEN

2/54

INDEXINDEX

1. DEFINITIONS AND WARNINGS ............................................................................................................. 5 1.1 Object of this manual ........................................................................................................................ 5 1.2 Symbols used..................................................................................................................................... 5 1.3Qualifiedpersonnel ........................................................................................................................... 5 1.4Useforintendedpurposeonly .......................................................................................................... 5 1.5Safetyinstructions ............................................................................................................................. 6 1.6Informativeletter .............................................................................................................................. 7 1.7Safeoperatingarea ........................................................................................................................... 72. REGULATORY REFERENCES ................................................................................................................... 8 2.1Mechanicalandelectricalsafety ....................................................................................................... 8 2.2Electro-MagneticCompatibility(EMC) .............................................................................................. 8 2.3Surgeprotection ................................................................................................................................ 93. DATA PLATE .......................................................................................................................................... 104. TRANSPORT AND STORAGE ................................................................................................................ 115. PACKING CONTENTS ............................................................................................................................ 116. UNPACKING .......................................................................................................................................... 127. PRODUCT DESCRIPTION ..................................................................................................................... 138. TECHNICAL DATA ................................................................................................................................. 14 8.1Dimensionaldrawings ..................................................................................................................... 159. INSTALLATION ...................................................................................................................................... 16 9.1Commissioning ................................................................................................................................ 16 9.2Operation ........................................................................................................................................ 16 9.3Ambientoperatingcondition .......................................................................................................... 16 9.4Faninstallation ................................................................................................................................ 16 9.5Accessoryinstallation ...................................................................................................................... 17

9.5.1Inletprotectionguardkit ......................................................................................................... 17 9.6Electricalconnections...................................................................................................................... 18

9.6.1Optionals ................................................................................................................................. 209.6.2Powersupply ........................................................................................................................... 219.6.3Controlboardconnection ........................................................................................................ 229.6.4Connectiondetails ................................................................................................................... 23

9.6.4.1Analog ........................................................................................................................... 239.6.4.2Modbuscommunication ............................................................................................... 259.6.4.3Enablesignal ................................................................................................................. 269.6.4.4Pressureandflowmeter ............................................................................................... 269.6.4.5+24AUXpowersupply(forPFP3-Phonly) ................................................................... 27 9.6.4.6Relay(forPFP3-Phonly) ............................................................................................... 279.6.4.7Tachometric,alarmandfilteroutput ............................................................................ 28

Rev. 1 - 08/10/2021


3/54

9.6.4.8InputImpedances .............................................................................................................. 28 10. OPERATING MODES AND SETTING OPTIONS .................................................................................... 2910.1Speedcontrol................................................................................................................................ 2910.1.1Analogspeedcontrol .......................................................................................................... 2910.1.2Modbustemporaryspeedcontrol ...................................................................................... 2910.1.3Modbusfixedspeedcontrol ............................................................................................... 3010.1.4Speedcontrolcurves:examples ......................................................................................... 30 10.2Constantairflow ............................................................................................................................ 30 10.3Asynchronousemulation ............................................................................................................... 30 10.4PIDclosedcontrolloop................................................................................................................. 31

10.4.1Analogref.PIDclosedcontrolloop ........................................................................................ 3110.4.2Modbustemporaryref.PIDclosedcontrolloop .................................................................... 3110.4.3Modbusfixedref.PIDclosedcontrolloop ............................................................................. 3110.4.4Modbuspositive/negativefeedback ..................................................................................... 32

10.5Changingtheoperationmode ...................................................................................................... 32 11. VOLUMETER MEASUREMENT SYSTEM FOR VOLUME FLOW RATE ................................................. 33 11.1Generaldescriptionofthesystem ................................................................................................ 33 11.2Howtocalculatevolumeflowratefrompressureprobe .............................................................. 3412. OTHER FEATURES ................................................................................................................................ 35 12.1Filteralarm .................................................................................................................................... 35 12.2Changeoflimits ............................................................................................................................. 35 12.3Outoffunctioningrangealarm ..................................................................................................... 3512.4Flyingstart(for3-phaseonly) ........................................................................................................ 35 12.5Regeneration(for3-phaseonly) .................................................................................................... 35 12.6Skipspeedrange(for3-phaseonly) .............................................................................................. 36 12.7Softstart ........................................................................................................................................ 36 12.8StartinginClosed-looptorquecontrol(for5.5kWdriversonly) ................................................... 37 12.9Stopspeed(for5.5kWdriversonly) .............................................................................................. 37 12.10Lockedrotor(for5.5kWdriversonly) ......................................................................................... 3813. SAFE OPERATING AREA LIMITATIONS ................................................................................................ 38 13.1Speedlimitation ............................................................................................................................ 38 13.2Powerlimitation ............................................................................................................................ 38 13.3Outputcurrentlimitation .............................................................................................................. 38 13.4Inputcurrentlimitation(for1-phaseonly).................................................................................... 3814. OTHER VARIABLES ............................................................................................................................... 39 14.1Busvoltage .................................................................................................................................... 39 14.2Motorvoltage ................................................................................................................................ 39 14.3Enablefunction ............................................................................................................................. 3915. DERATING AND OVERHEATING PROTECTIONS ................................................................................. 39 15.1Driveroverheating:DERATING ...................................................................................................... 39 15.2Motoroverheating:THERMALPROTECTOR .................................................................................. 40

Rev. 1 - 08/10/2021


4/54

16. MASTER & SLAVE MODE ..................................................................................................................... 40 16.1MasterandSlave0-5VPWMout .................................................................................................. 40 16.2MasterandSlave0-10VPWMout ................................................................................................ 4017. VARIABLESWITCHINGFREQUENCY(for3-phase-4kWand5.5kW) ............................................... 4118. COMMUNICATION ............................................................................................................................... 4118.1Temporaryholdingregister ........................................................................................................... 4218.2Fixedholdingregister .................................................................................................................... 42 18.3Holdingregisterdescription .......................................................................................................... 43 18.3.1Holdingregister0 ............................................................................................................... 43 18.3.2Holdingregister1 ............................................................................................................... 43 18.3.3Holdingregister2 ............................................................................................................... 44 18.3.3Holdingregister7 ............................................................................................................... 44 18.3.4Holdingregister16 ............................................................................................................. 44 18.3.5Holdingregister21 ............................................................................................................. 44 18.3.6Holdingregister31 ............................................................................................................. 4418.3.7Holdingregister32 ............................................................................................................. 45 18.3.8Holdingregister33 ............................................................................................................. 45 18.3.9Holdingregister34 ............................................................................................................. 45 18.3.10Holdingregister35 ........................................................................................................... 45 18.3.11Holdingregister36 ........................................................................................................... 46 18.3.12Holdingregister45 ........................................................................................................... 46 18.3.13Holdingregister46 ........................................................................................................... 46 18.3.14Holdingregister47 ........................................................................................................... 46 18.3.15Holdingregister48 ........................................................................................................... 47 18.3.16Holdingregister50 ........................................................................................................... 47 18.3.17Holdingregister51 ........................................................................................................... 47 18.3.18Holdingregister52 ........................................................................................................... 47 18.3.19Holdingregister53 ........................................................................................................... 47 18.3.20Holdingregister54 ........................................................................................................... 47 18.3.21Holdingregister55 ........................................................................................................... 48 18.3.22Holdingregister56 ........................................................................................................... 48 18.4Inputregisterdescription .............................................................................................................. 48 18.5FaninfoandModbusregisters ...................................................................................................... 4919. ALARM HANDLING .............................................................................................................................. 50 19.1Monitoring .................................................................................................................................... 50 19.2Modbusregisters-Alarmdescription ........................................................................................... 50 19.3BlinkingLED-Alarmdescription ................................................................................................... 51 19.4Digitalalarmoutput ...................................................................................................................... 51 19.5Alarmreset .................................................................................................................................... 5120. DRIVER REPLACEMENT ....................................................................................................................... 5221. AVAILABLE SOFTWARE ........................................................................................................................ 52

Rev. 1 - 08/10/2021


5/54

1. DEFINITIONS AND WARNINGS

1.2 Symbols used

1.3 Qualified personnel

ForthisInstructionManualandproductlabels,a"Qualifiedperson"issomeonewhoisfamiliarwiththein-stallation,mounting,start-upandoperationoftheequipmentandthehazardsinvolved.Heorshemusthavethefollowingqualifications:Trainedandauthorizedtoenergize,de-energize,clear,groundandtagcircuitsandequipmentinaccordancewithestablishedsafetyprocedures.Trainedinthepropercareanduseofprotectiveequipmentinaccordancewithestablishedsafetyprocedures.Trainedinrenderingfirstaid.

1.4 Use for intended purpose only

TheequipmentmaybeusedonlyfortheapplicationstatedinthemanualandonlyinconjunctionwithdevicesandcomponentsrecommendedandauthorizedbyNicotra Gebhardt.

As to the "WARNING" and "CAUTION"messages,thesafetymessageisasymbol(atrianglecontaininganexclamationmark)followedbythetextindicatingtherisklevel.Itspurposeistowarntheuserofthepotentialpersonaldamagethatmayresultfromanincorrectuseofthemachineorfromthenon-compliancewiththeuseandmaintenanceinstructions.Failuretocomplywiththesesafetymessagescouldcausedamageand/orthepartialortotaldestructionoftheproductorotherequipmentconnectedtoitorharmpeople.

As to the "NOTICE"message,thesafetymessagedoesnotindicatepreciselyarisk,itisonlyforinformation.

Pictogram Description

Indicatesapotentialrisksituationthatcanlead to death or serious damage, if it notprevented (ex. amputations, severe burns,loss of vision or hearing loss or visual orauditorysensorialimpairment).Indicatesapotentialrisksituationthatcouldcause less severe orminor damage, if notprevented(ex.cuts,scratches,irritation).

NOTICEmessage:itisusedfornon-physicalinjuries.

Dangertopersonsduetoelectricity.

The operationswhose execution requiresqualified or specialized staff to avoid anydangerareindicatedwiththissymbol.

WARNINGWARNING

CAUTIONCAUTION

1.1 Object of this manual

Theaimofthismanualisgivinginstructionsconcerninginstallation,useandmaintenanceofPFPfans.

Thismanualreferstofanshavingadriverwitha5firmwarerevisionorhigher.

Rev. 1 - 08/10/2021


6/54

This manual is an integral part of the EC Fan PFP and it must be carefully read before using it since it gives important indications with regards to its safe installation, use and maintenance. Keep it with care.

Before using the EC Fan PFP, read carefully the following general safety rules.

Aftertakingoffthepackagingmakesurethatthefanisintact.Incaseofdoubtdonotuseitandcontactanauthorizedservicecentre.Checkthatthefanisnotdamagedinanyofitsparts.Thesafetyconceptofthefanisvalidonlyinperfectconditions.

RISK OF ELECTRICAL SHOCKS

• Anydamagedsocket,connectionterminalorcablemustbereplacedimmediatelybyqualifiedtechniciansorbyauthorizedservicecentre.

• Incaseofrepairorreplacementoftheconnectioncablesand/orofthedamageddevicesorthatdonotworkproperly,pleasecontacttheauthorizedservicecentre.

• Incorrector improper installationmaycausethesystemtomalfunctionand/orresult indamagetopeopleand/orproperty.

• Alwaysdisconnectthepowersupplybeforeopeningthefan.

Any installation and/or maintenance tasks are only to be carried out by skilled, specialist personnel.Existing electrical systems must comply with the rules in force in the country where the PFP fan is installed.Before doing any maintenance, make sure that the power supply and the batteries have been dis-connected.Install an all-pole disconnecting device in the power supply system (in accordance with IEC 60335-1 or IEC 60204-1, as applicable).Conform to the wiring diagrams shown in the section “ELECTRICAL CONNECTIONS” of this manual.

Thefollowingwarnings,cautionsandnotesareprovidedforyoursafetyandhasameansofpreventingdamagetotheproductorcomponentsattheconnectedmachines.Specificwarnings,cautionsandnotesthatapplytoparticularactivitiesarelistedatthebeginningoftherel-evantchaptersandarerepeatedorsupplementedatcriticalpointsthroughoutthesesections.Please read the information carefully, since it is provided for your personal safety and will also help pro-longing the service life of your fan.

1.5 Safety instructions

WARNINGWARNING

This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge on condition that they are supervised and instructed concerning use of the appliance in a safe way and understand the hazards involved.-> Children shall not play with the appliance-> Cleaning and user maintenance shall not be made by children without supervision

WARNINGWARNING

The use and maintenance manual of any domestic appliance or similar device incorporating a PFP fan shall include the following clauses.

WARNINGWARNING

Rev. 1 - 08/10/2021


7/54

ALL RIGHTS ARE RESERVED ACCORDING TO THE INTERNATIONAL COPYRIGHT CONVENTIONS,

Thereproductionofanypartofthismanual,inanyform,isforbiddenwithoutthepriorwrittenauthorizationofthemanufacturer.

Thecontentofthisguidecanbemodifiedwithoutpriornotice.Greatcarehasbeentakenincollectingandcheckingthedocumentationcontainedinthismanualtomakeitascompleteandcomprehensibleaspossible.Nothingcontainedinthismanualcanbeconsideredasawarranty,eitherexpressedorimplied-including,

notinarestrictiveway,thesuitabilitywarrantyforanyspecialpurpose.Nothingcontainedinthismanualcanbeinterpretedasamodificationorconfirmationoftheterms

ofanypurchasecontract.

The Nicotra Gebhardt productshavenotbeenconceivedtoworkinareasatriskofexplosions.Incaseofdam-age

ormalfunction,theDDMPfansmustnotbeuseduntiltheCustomerCareTechnicalServicehasrepairedit.

Theinstallerandthemaintenancemanmustknowthecontentofthismanual.Althoughthemainfeaturesoftheequipmentdescribedinthismanualarenotsubjecttochange,themanufacturerreservestherighttomodifythecomponents,detailsandaccessoriesitdeemsnecessarytoimprovetheproductortomeetmanufacturingorcommercialrequirementsatanytimeandwithoutbeingobligedtoupdatethismanualimmediately.

1.6 Informative letter

WARNINGWARNING

The original configuration of the fan must not be changed at all, except as prescribed in this manual.On receiving the fan, make sure the supply corresponds to what has been ordered.In case of non-compliance immediately inform the manufacturer.Also make sure the PFP fan has not been damaged during transport.

For information concerning the nearest supporting center, please get in touch with your retailer.

WARNINGWARNING

1.7 Safe operating area

Thedriversareprotectedagainstoverload conditionsandasafeoperatingareaisdefinedbyalimitofspeed,outputpowerandmotorcurrent.FormoredetailsrefertotheANNEX"AnalogSignalCon-siderations".

Customer Care Technical Service

Rev. 1 - 08/10/2021


8/54

2. REGULATORY REFERENCES

ThesefanswithECdrivesystemsaredesignedforincorporationinequipment,fulfillingtherequirementsset by the Machinery Directive (MD - Dir. 2006/42/EU),andthosepartsoftheLow-Voltage Directive (Dir. 2014/35/EU)whichareapplicableinaccordancewiththeMD,whereitconcernselectricalsafety.ElectricalsafetyisgenerallyachievedbyapplicationoftheprovisionsoftheEN 60204-1 standard “Electrical equipment of machines - General requirements”.Suchsafetyrequirementsarecoveredasfarasnecessaryforapartlycompletemachine,sub-assemblyorcomponent,asthesefansarespecificallyintendedforincorporationwithinothermachines.Theresponsibilityforthemechanicalandelectricalsafetyoftheinstalledfanisthusofthemanufacturerofthecompletemachineand,forthisreason,itisstrictlyforbiddentoputthefaninoperationbeforetheman-ufacturerofthemachinehasassessedanddeclaredthatthecompletemachinefulfilsalltheessentialsafetyrequirementssetforthbytheMD.Please,checktheDeclarationofIncorporationwhichaccompanieseachproduct,oraskyourNicotra Gebhardt salesrepresentative,foradditionalinformation.

2.1 Mechanical and electrical safety

Single-phase drive systems: PFP 1.35 kW Thedriversof theseproducts incorporateanActivePowerFactorControlmodule, toprovideharmonicsfilteringandcompliancewiththeEMCrequirementsapplicabletodomesticandequivalentenvironments(“firstenvironment”),orwiththeadvancedrequirementsforharmonicdistortionwhichoftenapplytodatacenters.

Three-phase drive systems: PFP 2.6 kW, 4 kW, 5.5 kW ThedriversoftheseproductsareprovidedwithbasicEMIfiltersonly.Theyare suitable foruse in the “firstenvironment”,under condition that theyare incorporated intoanapparatus,systemorinstallation,whichisneitheraplug-indevicenoramovabledevice.Suchdevicesshallhavetobeinstalledandcommissionedonlybyaprofessional.

AllthePFPdrivers,singleandthree-phase,complywiththeimmunityrequirementssetupin:EN 61000-6-2 – Electromagnetic compatibility (EMC). Part 6-2:Generic standards.Generic standards -Immunityforindustrialenvironments.Concerningtheemissionslevel,dependingontheproductionmodel,thePFPdriversmaycomplyeitherwiththerequirementsset-upin:EN 61000-6-3 – Electromagnetic compatibility (EMC). Part 6-3:Genericstandards.Emissionstandardforresidential,commercialandlight-industrialenvironmentsorthosedefinedin:EN 61000-6-4 – Electromagnetic compatibility (EMC). Part 6-4:Genericstandards-Emissionstandardforindustrialenvironments.

Please,checktheDeclarationofIncorporationwhichaccompanieseachproduct,oraskyourNicotraGebhardtsalesrepresentativeforadditionalinformation.

The completemachine intowhich thisproduct is incorporatedmust complywith theEMCDirectivenr.2014/30/EU.

2.2 Electro-Magnetic Compatibility (EMC)

Specific electrical safety and EMC standards are applied according to the available models of conformity declaration (identified as 985732 and 985748):

EMC standards

61000-6-3 (household)

61000-6-4 (industrial)

Electrical safety

standards

60204 (machines) 985732 985748

Rev. 1 - 08/10/2021


9/54

To improve the Electromagnetic compatibility a ferrite should be put on the power supply cable (close to the driver). The compliancy to the standards is intended for a single fan. No tests have been made on multiple installations.

The compliancy to the standards are intended for a single fan.No tests have been made on multiple installations.

The EMC tests are conducted without 485 communication wire, analog signals or Bluetooth devices.

WARNINGWARNING

2.3 Surge protection

ThedriversinstalledinthePFPfansincorporateMOV-basedsurge-protectiondevices(SPDs)toprotecttheelectronicsfrompowersurges.

ThesedevicesfulfiltherequirementsoftheIEC61000-6-2andIEC61000-4-5standardsforsurgeimmunityandtesting:theywithstandwithoutdamage1kVpulsesindifferentialmode,and2kVpulsesincommonmode.

TheinternallymountedSPDisaType3SPD,inaccordancewithIEC61643-11,intendedforlocalprotectionofthesensitiveelectronics.Itsdesignassumesthatthepowerdistributionnetworkincludeshigher-levelType2andType1SPDs,whererequiredforprotectionagainstlightningstrikes,andalsoagainstrepeatinglower-levelpowersurges,generatedbysourcesinsidethelocalnetwork,likeanyunfilteredcontactorsofhighly-inductiveloads(e.g.motorsandtransformers).

Withoutfilteringorprotection, regularly repeatingdifferential-mode low-levelvoltagesurgescan lead topermanentdamagetotheelectronics.

Rev. 1 - 08/10/2021


10/54

3. DATA PLATE

Themanufacturer’sidentificationplateislocatedonthefan.Severalsafetywarningsareappliedtothefan;suchwarningsmustbestrictlyfollowedbyeveryonedealingwiththisproduct.The company is not to be held responsible for damage to property or accidents to people which might occur if the above-mentioned warnings are not observed. In such a case, the operator is the only person responsible.

Theidentificationplateislocatedonthefanbaseplate.

REF. DESCRIPTION1 MODEL DESIGNATION2 REGAL BELOIT ITALY CODE3 MODIFICATION LEVEL4 PRODUCTION LOT NO.5 NO. PHASES & CURRENT TYPE6 ELECTRICAL FREQUENCY7 VOLTAGE8 IP PROTECTION GRADE9 MOTOR INSULATION CLASS

10 CAPACITORVALUE(WHENPRESENT)11 MAXIMUM CURRENT INPUT12 MOTOR RATED POWER13 RATED RPM

REF. DESCRIPTION14 THERMALPROTECTOR(Y/N)15 OPERATING TEMPERATURE RANGE16 UNITEXCEEDS30KG(Y/N)17 UNITEXCEEDS85dB(A)SOUNDPOWER(Y/N)18 OPERATING MANUAL19 OVERALLEFFICIENCY(η)20 EFFICIENCYCATEGORY(STATICORTOTAL)

21 MEASUREMENT CATEGORY USED TO DE-TERMINETHEENERGYEFFICIENCY(A-D)

22 EFFICIENCY GRADE AT OPTIMUM ENERGY EFFICIENCY POINT

23 ErPCOMPLIANCE24 CUSTOMERCODE(WHENAPPLICABLE)25 PRODUCTION DATE

Rev. 1 - 08/10/2021


11/54

6xxxxxxxxxxxxxxxpfp xxxxxx xx xxx xxxx xxx123456

4. TRANSPORT & STORAGE

Correct transport, storage, erection and mounting, as well as careful operation and maintenance are essen-tial for proper and safe operation of the equipment.Protect the fan against physical shocks and vibration during transport and storage. Also, be sure to protect it against water (rainfall) and excessive temperatures.

WARNINGWARNING

If the fan must be subject to long-term storage, the storage time without application of any power supply shall not exceed two years since fan production or since operating the fan for at least half-an-hour continuously. The storage site shall have a temperature between -20°C and +70 °C, a Relative Humidity lower than 75%, and not be subject to condensation or exposed to dust.

CAUTIONCAUTION

5. PACKING CONTENTS

ThefanisdeliveredinacardboardboxinsidewhichtherearetheinstallationinstructionsandtheoptionsrequiredbytheCustomerattimeoforder.AlltheseoptionswillbemounteddirectlybytheManufacturer.

Apartfromthe"options",theCustomercanorder"accessories"afterwards.Inthiscase,theCustomerwillhavetoinstallthembyhim/herself.

Thefollowingdataareprintedonthepackingitself:

REF. DESCRIPTION1 ART. CODE2 MODEL DESCRIPTION3 BATCH CODE

1

2

3

Rev. 1 - 08/10/2021


12/54

6. UNPACKING

Check the fan. Before installing the PFP fan, check to ensure that all of the items listed are present and that there are no visible signs of damage.

1. Removethefanfromthebox.2. Removeallthecomponentsfromthepackaging.

WARNINGWARNING

Dispose of all packing components in compliance with the laws in force in the country of use.

RECYCLE

Rev. 1 - 08/10/2021


13/54

7. PRODUCT DESCRIPTION

ThePFPisabackwardcurvedbladefanequippedbyanexternalpermanentmagnetrotormotor.Therotormagnetsaremadebyrareearths(NdFeB)thatstronglyreducethemotordimensionand,therefore,thefanobstruction.Themotorshapeitselfhasbeenchosenforincreasingtheairflowinsidethefanscroll.TheDriverisfullyintegratedintothemotoranditdrivesthemotorthroughasensorlessalgorithm.Thesingle-phasedriverisequippedwithanactivePFC(PowerFactor>0.95inanystateofoperation).TheFansofseriesPFPcombinehighenergyefficiencyandlownoiselevel.Thankstothe“EC”(electroniccommutation)motors,theirelectronicsintegratespeedcontrolandprotectingsystem.Thisreducesthenum-berofdifferentcomponentsrequiredtoprovidethesefunctions,comparedtofanswithtraditionalmotors.ThemainfeatureofEC-motorisoperatingwithoutsliplosses,whichallowconsumingsignificantlylesspowerthanconventionalACmotors.Thisoccursatallspeedlevels,especiallywithpartialloadoperation.TheECcompletedrivesystem(i.e.thecombinationofthepermanent-magnetmotorwithitselectronicdriver)hasamuchhigherenergyefficiency,incomparisonwithadrivesystembasedonaconventionalACmotor.

Features• Supplyvoltage220V-240Vor400V-3Ph+/-10%(50/60Hz)• SinusoidalSensorlesscontrol• IntegratedactivePowerFactor ControllerorSingle-Phaseunits• Simplecableconnectionwithcage clamps• IntegratedModbusRTUinterface• Integratedanalogueinterface0-10V• Tachometricoutputavailable

Performance• InternalPIDavailable• Softstart• Adjustablelimitsandoperatingmode• Self-protectingstrategiesimplemented• Highefficiency• NTCbypassedduringoperation• PFCdisabledatstop• AvailablewithMaximumPowerinput1.35k-1Ph,2.6kW-

3Ph,4kW-3Phor5.5kW-3Ph• PowerFactor>0.95onmodelswithA-PFC

Protection• Missingmotorphaseprotection• Shortcircuitprotection• Overloadprotection• Overheatprotection• Impellerblockingprotection• SafeOperatingArea(speed,power andcurrentlimitation)

REF. DESCRIPTION

1 Inletport2 Outletport3 Rotor(forward-curvedblades)4 ECmotor

5 Driver

6 IDplate

1

3

2

5

4

6

Rev. 1 - 08/10/2021


14/54

8. TECHNICAL DATA

OtherdatarelatedtothetechnicalfeaturesarereportedontheIDplateshowninchapter3.

Size Motor code

Driver code

Driver phases

Abs. curr. (A)

Abs. pow. (W)

Min. temp. (°C)

Max. temp. (°C)

IP class protection

280-A 1416F0 1431F2 1 Ph 5.72 1363 -20°C +40°C IP 55280-A 1416F8 1431F3 3 Ph 2.07 1320 -20°C +40°C IP 55315-A 1416F0 1431F2 1 Ph 5.82 1365 -20°C +40°C IP 55315-A 1416F8 1431F3 3 Ph 2.34 1500 -20°C +40°C IP 55355-A 1416F1 1431F2 1 Ph 5.74 1378 -20°C +40°C IP 55355-A 1416F6 1431F3 3 Ph 3.24 2110 -20°C +40°C IP 55400-A 1416F1 1431F2 1 Ph 5.74 1347 -20°C +40°C IP 55400-A 1416F5 1431F3 3 Ph 4 2600 -20°C +40°C IP 55450-A 1416F1 1431F2 1 Ph 5.71 1327 -20°C +40°C IP 55450-A 1416F7 1431F3 3 Ph 3.64 2370 -20°C +40°C IP 55450-A 1416H7 1431F9 3 Ph 4.5 2860 -20°C +40°C IP 54450-B 1416K5 1431G5 3 Ph 8.7 5760 -20°C +40°C IP 54450-C 1416L1 1431G5 3 Ph 6.3 4150 -20°C +40°C IP 54500-A 1416F2 1431F2 1 Ph 5.82 1390 -20°C +40°C IP 55500-A 1416H5 1431F9 3 Ph 5.96 4122 -20°C +40°C IP 54500-B 1416K6 1431G5 3 Ph 8.7 5820 -20°C +40°C IP 54500-C 1416K6 1431G5 3 Ph 7.5 4840 -20°C +40°C IP 54560-A 1416H6 1431F9 3 Ph 5.86 3980 -20°C +40°C IP 54560-B 1416K7 1431G5 3 Ph 8.3 5600 -20°C +40°C IP 54560-C 1416L0 1431G5 3 Ph 8.4 5515 -20°C +40°C IP 54630-A 1416H8 1431F9 3 Ph 5.14 3500 -20°C +40°C IP 54630-A 1416K8 1431G5 3 Ph 7.9 5200 -20°C +40°C IP 54710-A 1416K9 1431G5 3 Ph 6.6 4390 -20°C +40°C IP 54

Rev. 1 - 08/10/2021


15/54

Size A B C D280-A 400 350 309 -

315-A 500 450 329 -

355-A 500 450 354 -

400-A 500 450 379 -

450-A 630 580 406 -450-A 630 580 - 469450-B 630 580 - 461450-C 630 580 - 454500-A 630 580 440 -500-A 630 580 - 503500-B 630 580 - 491500-C 630 580 - 483560-A 800 750 - 539560-B 800 750 - 528560-C 800 750 - 520630-A 800 750 - 573710-A 960 910 - 627

8.1 Dimensional drawings

Thefourmaindimensionalparameters(A, B,C and D)are illustrated intheschemeandthetablebelow,accordingtothedifferentsizes.

Rev. 1 - 08/10/2021


16/54

9. INSTALLATION

The fan installation must be carried out only by competent and qualified staff.

9.1 Commissioning

Work on the device/system by unqualified personnel or failure to comply with warnings can result in severe personal injury or serious damage to material.Only suitably qualified personnel trained in the setup, installation, commissioning and operation of the product should carry out work on the device/system.The PFP fan must be grounded through the PE connector on the driver.The following terminals can carry dangerous voltages even if the driver is inoperative:• the power supply terminals L, N or R, S, T• the motor terminals U, V, W

WARNINGWARNING

In the final installation, the device shall be directly connected to the supply terminals and shall have a con-tact separation in all poles, providing full disconnection under overvoltage category III conditions.

WARNINGWARNING

9.2 Operation

The driver must NOT be removed from the related PFP fan type and size.The driver cannot be used separate from the related fan.

WARNINGWARNING

Ensure correct grounding connections. The ground cable must be enough to carry the maximum supply fault current which normally will be limited by the fuses or MCB. Suitably rated fuses or MCB should be fitted in the main supply to the driver, according to any local legislation or codes.

WARNINGWARNING

The driver operates at high voltages.Certain parameter settings may cause the driver to restart automatically after an input power failure.

CAUTIONCAUTION

9.3 Ambient operating conditions

The installation place must be in accordance with the IP protection degree of the fan. In this respect, refer to the ID plate described in chapter 3.

Humidity Range: 90% non-condensingAltitude: if the fan is to be installed at an altitude > 1000m, derating is required.Shocks: do not drop the fan or expose it to sudden shock.Vibration: do not install the fan in an area where it is likely to be exposed to constant vibrations.

CAUTIONCAUTION

9.4 Fan installation

Placethefanaccordingtoyourneeds,afterhavingcheckeditsdimensionsandthepositionofthefixingholes.

Rev. 1 - 08/10/2021


17/54

9.5 Accessory installation

Aspreviouslymentioned,alltherequiredoptionsaregenerallyinstalledbytheManufacturerbeforedelivery.Thefollowingdescribesthecomposition,themainfeaturesandthemountingprocedureofeachaccessorythatisorderedseparately.

9.5.1 Inlet protection guard kit

Sizes 280-A / 630-A / 710-A

Sizes 315-A / 355-A / 400-A / 450-A /500-A / 560-A

Size Code A B C D

280-A 6891A0 298.4 284 214 9

315-A 6891A1 342.4 317 274 -

355-A 6891A2 377.4 352 314 -

400-A 6891A3 417.4 392 354 -

450-A 6891A4 463.4 438 394 -

500-A 6891A5 513.4 488 434 -

560-A 6891A6 563.4 538 434 -

630-A 6891A7 615.4 601 494 11

710-A 6891A9 688.4 672 554 11

Materials235JRsteelaccordingtoUNIEN10025Surface:Fe/Zn8accordingtoUNIENISO2081

D

Assembly Inordernottolosethealignmentorwhentheguardisattachedwithfourbolts,proceedasfollows:• overlaptheprotectionguard;• unscrewandscrewbolts(1)andeyelets(2)toholes(3)oneat

atime.

1

2

3

Rev. 1 - 08/10/2021


18/54

9.6 Electrical connections

PFP 1.35kW 1-Phase

PFP 2.6kW 3-Phase

PFP 4kW-5.5kW 3-Phase

U GREY

V BROWN

W BLACK

PE Y/GREEN

CNO

RPE

ST

ANALOG INPUTENABLE+10V+24V

TRANSDUCER INPUTGNDMODBUS - AMODBUS - BGND

TACHO/ALARM/FILTER

PELN

ANALOG INPUTENABLE+10V+24V

TRANSDUCER INPUTGNDMODBUS - AMODBUS - BGND

TACHO/ALARM/FILTER

U GREY

W BLACK

PE Y/GREEN

V BROWN

1

2

3

1

2

1

2

5

5

4

3

4

3 4

REF. DESCRIPTION1 Powersupply2 Controlboardconnection3 Communication4 BlinkingLED5 Relayconnection

Rev. 1 - 08/10/2021


19/54

Make sure that a differential switch (circuit breaker) has been installed upstream the line and that it functions properly.

Before carrying out any intervention on the electrical system, disconnect the power supply by means of main switch.

Work on the driver/fan by unqualified personnel or failure to comply with warnings can result in severe personal injury or serious damage to material.Only suitably qualified personnel trained in the set-up, installation, commissioning and operation of the product should carry out work on the driver/fan. This driver must be grounded.The power supply terminals L, N (1-Phase) or R, S, T (3-Phase) and the motor terminals U, V, W can carry dangerous voltages even if the driver is inoperative.

WARNINGWARNING

Rev. 1 - 08/10/2021


20/54

Tacho/Alrm/Filter

GND

Modbus - B

Modbus - A

GND

Analog Input

Enable

+10V

No

C

PE

R

S

T

+24V

Transducer input

6

8

4

1

7

2

5

4

3

2

1

Grey

Brown

Blue

White

Yellow

Red

Pink

Yellow / Green

Black 3

Black 2

Black 1

Connector

code 144144

Connector

code 144143

3-phasedrivers

9.6.1 Optionals

Thedriverscanbeoptionallyconnectedbymeansofthefollowingflush-typeconnectors:• Phoenix Contact SACC-E-M12FS-8CON-PG9/0,5 (1) orcompatibleandPhoenix Contact SACC-E-M12MSS-

3P-M16/0,5 PE orcompatiblefor1-phasedrivers(2);• Phoenix Contact SACC-E-M12FS-8CON-PG9/0,5 (1) orcompatibleandPhoenix Contact SACC-E-M12MSS-

4CON-M16/0,5 PEorcompatiblefor3-phasedrivers(2).

1

2

Tacho/Alrm/Filter

GND

Modbus - B

Modbus - A

GND

Analog Input

Enable

+10V

No

C

PE

R

S

T

+24V

Transducer input

6

8

4

1

7

2

5

4

3

2

1

Grey

Brown

Blue

White

Yellow

Red

Pink

Yellow / Green

Black 3

Black 2

Black 1

Connector

code 144144

Connector

code 144143

Tacho/Alrm/Filter

GND

Modbus - B

Modbus - A

GND

Analog Input

Enable

+10V

No

C

PE

R

S

T

+24V

Transducer input

6

8

4

1

7

2

5

4

3

2

1

Grey

Brown

Blue

White

Yellow

Red

Pink

Yellow / Green

Black 3

Black 2

Black 1

Connector

code 144144

Connector

code 144143

Tacho/Alrm/Filter

GND

Modbus - B

Modbus - A

GND

Analog Input

Enable

+10V

No

C

PE

R

S

T

+24V

Transducer input

6

8

4

1

7

2

5

4

3

2

1

Grey

Brown

Blue

White

Yellow

Red

Pink

Yellow / Green

Black 3

Black 2

Black 1

Connector

code 144144

Connector

code 144143

Tacho/Alrm/Filter

GND

Modbus - B

Modbus - A

GND

Analog Input

Enable

+10V

No

C

PE

R

S

T

+24V

Transducer input

6

8

4

1

7

2

5

4

3

2

1

Grey

Brown

Blue

White

Yellow

Red

Pink

Yellow / Green

Black 3

Black 2

Black 1

Connector

code 144144

Connector

code 144143

Tacho/Alrm/Filter

GND

Modbus - B

Modbus - A

GND

Analog Input

Enable

+10V

No

C

PE

R

S

T

+24V

Transducer input

6

8

4

1

7

2

5

4

3

2

1

Grey

Brown

Blue

White

Yellow

Red

Pink

Yellow / Green

Black 3

Black 2

Black 1

Connector

code 144144

Connector

code 144143

Tacho/Alrm/Filter

GND

Modbus - B

Modbus - A

GND

Analog Input

Enable

+10V

No

C

PE

R

S

T

+24V

Transducer input

6

8

4

1

7

2

5

4

3

2

1

Grey

Brown

Blue

White

Yellow

Red

Pink

Yellow / Green

Black 3

Black 2

Black 1

Connector

code 144144

Connector

code 144143

Tacho/Alrm/Filter

GND

Modbus - B

Modbus - A

GND

Analog Input

Enable

+10V

No

C

PE

R

S

T

+24V

Transducer input

6

8

4

1

7

2

5

4

3

2

1

Grey

Brown

Blue

White

Yellow

Red

Pink

Yellow / Green

Black 3

Black 2

Black 1

Connector

code 144144

Connector

code 144143

Tacho/Alrm/Filter

GND

Modbus - B

Modbus - A

GND

Analog Input

Enable

+10V

No

C

PE

R

S

T

+24V

Transducer input

6

8

4

1

7

2

5

4

3

2

1

Grey

Brown

Blue

White

Yellow

Red

Pink

Yellow / Green

Black 3

Black 2

Black 1

Connector

code 144144

Connector

code 144143

1-phasedrivers

Rev. 1 - 08/10/2021


21/54


ThreePhase400V±10%@50/60HzThemaximumfanperformance,withinthenominalrangeofsupply-voltage[360-440V],maybesensitivetotheac-tualsupplyvoltage.Whetherthefanmaximumspeedisrelatedtothesupplyvoltagedependsonthefansizeanddutypoint.

Min. and max. wire section:Spring-loadedpush-inclamp,suitablefor0.2mm²-24AWGupto6mm²-8AWG(stranded)or10mm²(solid)wireUseabladedscrewdriver,0.6x3.5mmmax,tounlock.

9.6.2 Power supply

Theendusermustconnectthepowersupplycableandthecommandsignaltothecontrolboard,whilethemotorconnectionisalreadydonebyNicotra Gebhardt.

PFP 1.35kW 1-Phase

SinglePhase220/240V±10%@50/60HzTheperformanceintherange[200V-264V]@50Hz/60HzisalwaysthesameduetothePFCmoduleinsidethedriver.

Min. and max. wire section:Spring-loadedpush-inclamp,suitablefor• 0.2mm²-24AWGupto2.5mm²-12AWG(stranded)or4

mm²(solid)wireUseabladedscrewdriver,0.6x3.5mmmax,tounlock.

PFP 2.65kW 3-Phase

ThreePhase400V±10%@50/60HzThemaximumfanperformance,withinthenominalrangeofsupply-voltage[360-440V],maybesensitivetotheac-tualsupplyvoltage.Whetherthefanmaximumspeedisrelatedtothesupplyvoltagedependsonthefansizeanddutypoint.

Min. and max. wire section:Spring-loadedpush-inclamp,suitablefor• 0.2mm²-24AWGupto6mm²-8AWG(stranded)or

10mm²(solid)wireUseabladedscrewdriver,0.6x3.5mmmax,tounlock.

As concerns the cable minimum section, check the requirements issued by the country of installation.

Rev. 1 - 08/10/2021


22/54

9.6.3 Control board connection

PFP 1.35kW 1-Phase

4 ANALOG INPUT3 ENABLE2 +10V1 +24V

5 TRANSDUCER INPUT6 GND7 MODBUS - A8 MODBUS - B9 GND10 TACHO/ALARM/FILTER

10 ← 1

PFP 2.65kW 3-Phase

4 ANALOG INPUT3 ENABLE2 +10V1 +24V

5 TRANSDUCER INPUT6 GND7 MODBUS - A8 MODBUS - B9 GND10 TACHO/ALARM/FILTER

10 ← 1

10 ← 1

Min. and max. section:• 0.13 - 1.31 mm2(26-16AWG)solidorstrandedcable.

1 TACHO/ALARM/FILTER2 GND3 MODBUS - B4 MODBUS - A5 GND

6 TRANSDUCER INPUT 7 ANALOG INPUT

8 ENABLE9 +10V10 +24V


Rev. 1 - 08/10/2021


23/54

9.6.4 Connection details

Inthisparagraphareexplainedthefeatureandthepossibleconnectionofthecontrolboard.Thecontrolboardterminalsareopto-insulated.

The available features can be different depending on the fan model.

9.6.4.1 Analog

ThisisthedriverdefaultmodeandthesignalmustbeconnectedintotheANALOGINPUTandthereferenceto GND.TheanaloginputcanacceptalsoaPWMsignalwithf>1kHz.

Seealsoparagraphs9.6.4.3and14.3.

WARNINGWARNING

Do not use devices having the signal GND connected to the NEUTRAL cable of the power supply. The driv-er may be damaged or not functioning properly.

The available +10V pow-er supply of the driver isintended to be usedwitha potentiometer ofmini-mum2KOhm,with amaxabsorbedcurrentof5mA.Anydifferentdevices con-nected to it couldbring toanundesiredfunctioningofthedriverorof connecteddevice.Nicotra Gebhardt canpro-videadedicatedpotentiom-eter:REGPOTcodeK43138.

Without using the STOP switch Using the STOP switch

Do not reverse the input signal or connect the +10V, 12V or +24V to signal ground. The driver could be damaged. Do not apply signals with voltage outside the indicated limits, the driver could be damaged.

WARNINGWARNING

Rev. 1 - 08/10/2021


24/54

Anauto-restartingalarmoccurswhenafanisforcedtorunforward(orbackward)rotationwithaspeedhigherthan150rpm.

Ifanext.4-20mAdevice isused, it isnecessarytoadd0.1%precisionresistancesbetweentheANALOGINPUTandGND.Thevalueoftheresistancecanrangefrom:125Ω->Vsignalrangesfrom0.5Vto2.5Vto500Ω->Vsignalrangesfrom2Vto10V

TAC

HO

/ AL

AR

M /

FILT

ER

GN

D

MO

DB

US

-B

MO

DB

US

-A

GN

D

TRA

NS

UC

ER

INP

UT

AN

ALO

G IN

PU

T

EN

AB

LE

+10V

+24V

Iftwoormorefansareinstalledinthesamecompartmentandoperatedinparallel,thefansmuststartandstopatthesametime.

Rev. 1 - 08/10/2021


25/54

9.6.4.2 Modbus Communication

AModbusRTUprotocolisavailableonallthefanmodels.ThelinemustbeconnectedtoMODBUS-A,MODBUS-BandGNDpins.TherearetwopossibleModbusconnections:1)DuringthefanfunctioningthroughanyRS-485serialconnection2)WiththedriverpoweredoffthroughanUARTserialconnection

ToconnectOFFLINEthedrivertoaPCwhenthefanispoweredoff,aUSBtoUARTconvertercanbeused:K431A6for1-phasedriversandK431F7for3-phasedrivers.AMOLEXconnector"1"isusedtoconnectthecabletothedriver.

ToconnectthedrivertoaPCduringthefanfunctioning,aUSBto485convertercanbeused:K431F8.

1

SpecificationsanddriverscanbedownloadedfromNicotraGebhardtwebsite:https://www.nicotra-gebhardt.com

3-phase1-phase

Rev. 1 - 08/10/2021


26/54

9.6.4.3 Enable Signal

TheENABLEsignalallowstheinstallationoftheStart/Stopswitch.The fan runswhen the ENABLE input isconnectedtothe+10Vor+24Vpowersupply.

The status of the ENABLE input does not affect the Modbus Temporary modes.

Ifitisnotnecessaryturningon/offthefanwithanexternalswitch,ajumpercanbeinsertedbetweenclamps+24VandENABLE.Incasethisjumperisnotincluded,thefanwillnotstart.Forfurtherdetails,refertopar.14.3.

9.6.4.4 Pressure and flow meter

Toprovide a constant airflow, thePFP fan is providedwiththevolumeterpressureprobes,whicharethenconnectedtotransducerK43198bymeansofK409A2piping.ThistransducerisconnectedtothePIDregulatorincorporatedintothedriver,whichisinstalledonthefan.

For a correct installation, follow the instructions supplied with the single components.

Thevoltageprovidedonthe“Enable”inputis constantlymeasured in all the driveroperatingmodes,andthevaluecanbereadintheInputRegister28.

ThevoltageprovidedontheEnableinputdoesnotaffectthefour“Modbus-Temporary”modes,wherethefanisintendedtobecompletelycontrolled,includingitsstartingandstopping,viaitsserialinterface.Thisvoltageisrelevantinalltheotheroperatingmodes:themodesrelyingontargetvaluesstoredinfixedregisters(Modbus–Fixedvalues)andthemodeswhereanAnalogueInputsignalisused,plustheMaster/Slave mode.

InthosemodeswhicharesensitivetotheEnableinput,thefanstartsonlyifthevoltageontheEnablechannelisabove5Vandstopswhenit’sbroughttozero.Aninternalpull-downresistorbringsthevoltagetozero,ifnovoltagesourceisconnectedtotheEnablechannel.

Thisfunctioncannotbedisabledbysoftware,buttheEnablechannelcanbepermanentlyconnectedwithajumpertoeitheroneoftheinternalvoltage-sources:10Vor24V.

WhentheAnalogueInputsignalisused,thedriverneedsboththedigitalinputontheEnablechannelandasignalhigherthan0.5VontheAnalogue-Inputchannel,tostart.Inthesemodes,thefancanbestoppedbyremovingthevoltageontheEnablechannel,bybringingtheAnalogueInputvoltagebelow0.5V,orboth.

Rev. 1 - 08/10/2021


27/54

9.6.4.5 +24V AUX Power supply (for PFP 3-Ph only)

The+24Voutputcansupplyamaxcurrentof50mAanditisabletodrivetheNicotra Gebhardtpressuretransducer(codeK43198).Useanavailablegroundpinontheboardforpoweringdevices.

If the transducerhas itsownPIDcontrol, the signalmustbe connected to thestandardANALOGINPUT.

9.6.4.6 Relay (for PFP 3-Ph only)

ArelayisavailableontheThree-Phasedrivers.Itissuitablefor250Vac/30Vdc5A.

When the driver is powered off the relay is open -> the PCB label indicates C-NO.During the functioning the relay is Normally Closed in No-Alarm condition and open in case of alarm.

FordetailsconcerningtheVolumetermeasurementsystemforthevolumeflowrate,pleaserefertoparagraph11.

Anexternaltransducercanbepoweredandconnectedtothedriver.Therearetwopossibleconnectionsdependingonthekindoftransducerused:1)OpenControlLoopTransducer2)ClosedControlLoopTransducerNicotra GebhardtcanprovideaPressureTransducercodeK43198.

Ifthetransducerdoesnothaveitsowncontrolanditsuppliesavoltagesignal[0,+10V]proportionaltothemeasuredvariable,itispossibletousethetunablePIDofthedriver.ThesignalmustbeconnectedtotheTRANSDUCERINPUT.

Rev. 1 - 08/10/2021


28/54

Min. and max. section:• 0.33 - 2 mm2(22-14AWG)solidorstrandedcable.

9.6.4.7 Tachometric, Alarm and Filter Output

Theanalogueoutputchannelisconfigured,bydefault,toprovideaPWMtachometricoutputsignal.

Thetachometricoutputisa0to10VPWMwaveformat1KHz.

whenthespeedisequalorhigherthanthespeedminanditis0%whenthespeedislower.ThedevicereadingtheoutputmustbeconnectedtoTACHO\ALARM\FILTERpinandGND.Themaxcurrentsuppliedoftheoutputis0.2mA.

Remember that the SpeedReal is 0 whenever the required speed is lower than Speedmin unless the fan is in the dragging phase.

Thesameanalogueoutputchannelcanbereconfigured,bychangingthevalueinHoldingRegister46(seeparagraph18.3atpage41),asaDigitalAlarmOutput(refertochapter19andparagraph19.4),orinoneofthealternativealarmmodesdescribedinparagraphs12.1and12.2.

Input Impedances Feature available on

ANALOG INPUT 20kΩ PFP1.35kW1-Phase

ENABLEANALOG INPUTTRANSDUCER INPUT

200kΩPFP2.65kW3-PhasePFP4kW3-PhasePFP5.5kW3-Phase

9.6.4.8 Input Impedances

Rev. 1 - 08/10/2021


29/54

10. OPERATING MODES AND SETTING OPTIONS

Dependingonthefanmodel,thereare4possibleOperating Modes andforeachmode3possibleSetting Options.

TheoperatingmodesandthesettingoptionscanbechosenbymodifyingtheINPUTTYPEHolding Register 34.

10.1 Speed control

(INPUT TYPE = 1 Default factory setting)Throughthissettingthefanspeedisproportionaltotheanalogvoltageinput.ThefanspeedislimitedbytheSafeOperatingArea,therefore,dependingonthefanworkingpoint,thefancouldbenomoreabletoincreasethespeedcoherentlytothesetvoltagevalue.Toavoidthelossofsignaldynamic,aspeedlimitrescalingisnecessarybymodifyingthevalueoftheMaxSpeedHolding Register 2.ItisalsopossibletorescaletheminSpeedbymodifyingtheHolding Register 1.TheanalogsignalcanbereadfromtheInput Register 14.

For more details refer to the ANNEX -> Analog Signal Considerations.

TheMAXandminspeeddefaultvaluesareinfunctionofthefansizes.

10.1.1 Analog speed control

(INPUT TYPE = 0)ThroughthissettingthefanrunsatthespeeddefinedbymodifyingtheHolding Register 66. Thesettingismaintainedmeanwhilethefanispoweredonanditislostwhenthefanispoweredoff.

10.1.2 Modbus temporary speed control

Speed Control

OPERATING MODES

PID Closed Control

Loop

Asynchro-nous Emulation

Constant Airflow

SensorlessSETTING OPTIONS

Modbus Control(Temporary setting)

Fixed Modbus(Permanent setting)

Analog Signal Control

Therelationshipbetweencontrolvoltageandfanspeedisdescribedinparagraph10.1.4and,withmoredetail,inchapter1oftheTechnicalAnnextothismanual.

The minimum speed holding register cannot be modified for 1.35kW 1-Ph.

The operating mode “Constant Airflow” is not available for PFPs. Setting the fan in one of the three Constant Airflow modes could make it turn in an unknown and/or uncontrollable manner.

WARNINGWARNING

The algorithm related to the operating mode "Asynchronous Emulation" does not produce significant differences on PFPs in comparison to the operating mode "Speed control". Therefore, its use is not recommended.

Rev. 1 - 08/10/2021


30/54

Thefollowingfiguresshowasetofperformancecurvesatdifferentspeedsettingslimitedbythefanmaxworkinglimitcurve(seeparagraph1.6).

10.1.4 Speed control curves: example

10.2 Constant airflow

ThisoperatingmodeisnotavailableforPFPs.Forfurtherdetails,seetherelatedwarninginpar.18.3.

10.3 Asynchronous emulation

ThisoperatingmodeisnotavailableforPFPs.Forfurtherdetails,seetherelatednoteinpar.18.3.

0

200

400

600

800

1000

1200

1400

Stat

ic p

ress

ure

[Pa]

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000Flow rate [m3/h]

54 5558

62

6664

66

68

71

71

72

75

72

73

74

76

77

77

78

80

7

6

5

4

3

2

1

0

1000

2000

3000

Spee

d [rp

m]

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000Flow rate [m3/h]

7

6

5

43

21

(INPUT TYPE = 2)ThroughthissettingthefanrunsatthespeeddefinedbymodifyingtheHolding Register 21. Thesettingispermanentandfanstartsatthedefinedspeedeachtimeitispoweredon.

10.1.3 Modbus fixed speed control

Rev. 1 - 08/10/2021


31/54

10.4 PID closed control loop

ThroughthissettingthefancanworkinaPIDclosedcontrolloopwherethemeasuredprocessvariableisconnectedtotheTRANSDUCERINPUTthatcanbemonitoredthroughthe Input Register 31. anditmustbeintherangeof[0,10V].ThePIDmodecanbethereforeusedwithtemperatureprobes,pressuretransducer,CO/CO2detectors,etc.

Theparameterstosetare:- KP=ProportionalGain->Holding Register 51- Kl=IntegralGain->Holding Register 52- KD=DerivativeGain->Holding Register 53- Time = TPID->Holding Register 54

ThefollowingequationsrepresentthesimplifiedPIDcode:

Chapter5ofthetechnicalAnnextothismanualdescribesapracticalproceduretocalibratethePIDconstants,toachievestableoperationoftheclosed-loopPIDcontrolsystem.

Asanalternative,theNicotraGebhardtFanConfiguratorsoftwareforPCisalsoincludinganautomaticpro-ceduretocalibratethePIDcontroller.Inmanycases,thissoftwarefunctioncansavetheuserfromalengthymanualcalibrationprocedure.Forfurtherinformation,refertotheFanConfiguratormanual.

10.4.2 Modbus temporary ref. PID closed control loop

(INPUT TYPE = 11)InthismodethePIDreferenceisdefinedbymodifyingtheHolding Register 66. Thevalueofthereferenceisexpressedinstepsof0.1Volt(thereforetheregisterrangesfrom0to100)ThePIDerroriscalculatedinthefollowingway:

Error=(ModbusREG_66 - ANALOGInput)

10.4.3 Modbus fixed ref. PID closed control loop

(INPUT TYPE = 11)InthismodethePIDreferenceisdefinedbymodifyingtheHolding Register 50. Thevalueofthereferenceisexpressedinstepsof0.1Volt(thereforetheregisterrangesfrom0to100)ThePIDerroriscalculatedinthefollowingway:

Error=(ModbusREG_50 - ANALOGInput)

10.4.1 Analog ref. PID closed control loop

(INPUT TYPE = 10)InthismodethePIDreferenceisgivenbytheanalogsignalpresentattheANALOGINPUTthatcanbemoni-toredthroughtheInput Register 29.

Rev. 1 - 08/10/2021


32/54

10.4.4 Modbus positive/negative feedback

Dependingontheapplicationitcouldbenec-essarytoinvertthefeedbackbehavior.ThroughtheHolding Register 31itispossibletomultiplyby-1thePIDerror.

Whentheregisterissetto0->Error=(Reference - Measure);Whentheregisterissetto1->Error=(Measure - Reference).

10.5 Changing the operation mode

Hereareshowntheactionspassingfromoneoperationmodetoanotherone.

ACTION ACTIONS A ACTIONS B

TemporarySetting->FixedSetting

Thefanmustfollowthetargetcorrespondingtothevaluestoredtherelatedregister.

Fanisputinstopmodeandafterthedataaresavedthefanfol-lowsthetargetcorrespondingtothevaluestoredintotherelatedregister.

FixedSetting->TemporarySetting

Thefanmuststopwaitingforanewregister66value. Thefanmuststopwaitingforanewregister66value.

TemporarySetting->AnalogSignal

Thefanmustfollowthetargetcorrespondingtotheanalogvalueattheinputs.

Fanisputinstopmodeandafterthedataaresavedthefanfol-lowsthetargetcorrespondingtotheanalogvalue.

AnalogSignal->TemporarySetting

Thefanmuststopwaitingforanewregister66value. Thefanmuststopwaitingforanewregister66value.

FixedSetting->AnalogSignal

Thefanmustfollowthetargetcorrespondingtotheanalogvalueattheinputs.

Fanisputinstopmodeandafterthedataaresavedthefanfol-lowsthetargetcorrespondingtotheanalogvalue.

AnalogSignal->FixedSetting

Thefanmustfollowthetargetcorrespondingtothevaluestoredtherelatedregister.

Fanisputinstopmodeandafterthedataaresavedthefanfol-lowsthetargetcorrespondingtothevaluestoredintotherelatedregister.

Increasing the fan speed

The probe voltage increases

The probe voltage decreases

Rev. 1 - 08/10/2021


33/54

11. VOLUMETER MEASUREMENT SYSTEM FOR VOLUME FLOW RATE

11.1 General description of the system

TheVolumetersystemisameasurementdeviceforthevolumeflowrateofanoperatingfan.

Acorrectandeasymeasurementofthefanvolumeflowcansatisfyavarietyofrequirements,fromacceptancetestingofanewplant,atstart-uptime,totheautomaticcontrolofcomplexsystems.

TheVolumetersystemdiffersfromothermeasurementdevices,likeWilsongridsandVenturi-meters,becauseitdoesnotneedalong,regular-sectionpieceofstraightduct.ItcanbeeasilyintegratedinthestructureofastandardA.H.U.withoutspecialmodifications.

AcompleteVolumetersystemismadeoftwoparts:

1 2

1)Amodifiedfan,withspecialpressureprobeslocatedoneachinletnozzle.

2)APressureTransducercodeK43198,locatedclosetothefanandconnectedwithpipestothefanandwithanelectricalcabletoadedicateddisplay(asshowninthefollowingscheme).

→

TheVolumeterdeviceisbasedontheVenturiprinciple,sensingthesuctionwhichisproduced,inthethroatsectionofthefaninletnozzleorbell-mouth,bytheairflowenteringthefan.

Theachievableprecisionfromacompleteandappropriatelycalibratedsystem(+/-5%)correspondstothelevelofprecisionnormallyrequiredforindustrialmeasurementsonarunningplant.

ThecharacteristicarchitectureoftheVolumetersystemallowstheuseofthosecomponentsonlyneededbythespecificapplication,limitingthecostoftheequipmentwhenthedesignrequirementsaresimpler.Thethreecomponentsdescribedabovemaybeusedornot,accordingtothefunctionalitiesrequiredfromeachmeasurementsystem.

Rev. 1 - 08/10/2021


34/54

where:Q=volumeflowrate[m³/h]∆p=pressurevalue,readonthemanometer[Pa]ρ=airdensity[kg·m-3](1.2at20°C,50%r.h.and1013.2hPa)C =dimensionalconstant,fromthefollowingtableonthispage.

TheKvaluetobeinsertedinsidethedeviceis:

Asyoucansee,ifthemeasurementistakenatstandardairdensity,thesquarerootassumesaunitvalueand K = C.

TheProbeCalibrationConstantChasdifferentvalues,accordingtothefantypeandsize,asshowninthefollowingtable:

PFP CPFP

PFP_280 84PFP_315 107PFP_355 134PFP_400 170PFP_450 218

PFP CPFP

PFP_500 268PFP_560 336PFP_630 425PFP_710 540

11.2 How to calculate volume flow rate from pressure probe

Thefollowinganalyticalequationsshowhowtocalculatethevalueofthevolumeflowratefromthevalueoftheprobepressure∆pandviceversa.Valuesof∆paregiveninPa,whilevaluesofflowrateQareexpressedinm³/h.

Analyticalexpressiontodetermineflowratevaluesfromthepressurevalues,whichcanbereadonthepres-sure-probetransducer:

where:Q=volumeflowrate[m³/h]∆p=pressurevalue,readonthemanometer[Pa]ρ=airdensity[kg·m-3](1.2at20°C,50%r.h.and1013.2hPa)C =dimensionalconstant,fromthefollowingtableonthispage.

Analyticalexpressiontopredictpressureprobemanometerreadingsfromthecorrespondingflowratevalues:

Rev. 1 - 08/10/2021


35/54

12. OTHER FEATURES

ThisfeatureisusefulwhenthespeedofthefanisnotdirectlysetbytheuserasfanssetinConstantAirflowAsynchronousEmulationorPIDmode.Thealarmisactivewhenaspeedthresholdisovertaken(5Vor10Vdependingonthefanmodel).

12.1 Filter alarm

Toactivatethisfeature,theHolding Register 46mustbesetatvalue2andtherequiredSpeedThresholdvaluemust be set into the Holding Register 55.Thedigitaloutputofthedriverchangesitsstatus(seeabovefigure).

12.3 Out of functioning range alarm

Thealgorithmcancatchthepositionoftherotorafterchangingthetargetspeedto0andtoanewvalueinshorttime.Iftoolongtimepassedandthefanrunsatverylowspeed,itisnotpossibletocatchthespeed:thefanbrakesandrestarts.

12.4 Flying start (for 3-phase only)

ThealgorithmcancatchthepositionoftherotorafterpoweringOFFandthenONthefan.Iftoolongtimepassedandthefanrunsatverylowspeeditisnotpossibletocatchthespeedandthefanbrakesandrestarts.

12.5 Regeneration (for 3-phase only)

ThisfeatureisnotavailableforPFPs.

12.2 Change of limits

TheMinSpeedvaluessetasdefaultarehigherthanthepossiblevaluesthatcanbeintroducedinthisregister.Twolimitationsareactiveforthisregister:

1. Aboluteminimumspeed(Hardcoded)Theabsoluteminimumvaluethatcanbesetinthisregisteris10rpm.

2. MinimumSpeed=2xMinrpmstp(HoldingRegister22-notchangeablebyusers)

It is suggested to set values equals or higher than the minimum speed default setting. The accelerations and decelerations chosen values are also related to the behaviour of the fan at the minimum speed set. Heavy changes could trigger overvoltage alarms.

Rev. 1 - 08/10/2021


36/54

Thisfeatureallowstoskiptheresonancefrequenciesofthefaninstallation.ToactivatethisfeaturetheHoldingRegister32mustbesetatthedesiredAvoidRangeStartandtheHolding Register 33thedesiredAvoidRangeEnd.

12.6 Skip speed Range (for 3-phase only)

This function should be avoided when used in close control loops application or unstable conditions of the fan could occur.

Inthefollowingparagraphthestartingphaseofafanisshown.• ThefirstphasewhenthefanreceivesacommandtostartrunningistheALIGNMENT.Duringthisphase

thedriveralignstherotor.• Thesecondphaseisthedraggingphase,wherethefangradually increasesitsspeedtotheminimum

inopenloop.InthisphasethecurrentandspeedvaluespresentintheInputRegistercan’tbetakeninconsideration.

• Thelastphaseistheclosedloopwherethesensorlesscontrolisactiveandfromtheminimumspeedtothetargetspeedthefanaccelerateswithdifferentrampsbasingonthefansizeandthewheelinertia.Theaccelerationanddecelerationvaluesaredifferentandtoavoidovervoltagealarmorlossofsynchronismalarm,thedecelerationisalwayslower.

12.7 Soft start

During the ALIGNMENT and DRAGGING phases a Loss of Synchronism alarm could occur if there is a condition of wrong rotor starting position or wrong position estimation during the open loop phase. This is not a blocking alarm; therefore the fan stops and auto-restarts after few seconds.

Rev. 1 - 08/10/2021


37/54

12.8 Starting in Closed-loop torque control (for 5.5 kW drivers only)

Unlikethelesspowerfuldrivers,the5.5kWdriversstartthemotorunderclosed-looptorquecontrolfrom0rpmupwards.Iftherotorofthemotorencounterssomeunexpectedresistancetorotation,thedriverincreasesgraduallythecurrentuntilthemotorcanstartcorrectly.

12.9 Stop speed (for 5.5 kW drivers only)

Whenthefanspeedissetto0rpmandthevalueof“StopSpeed”is 0<StopSpeed<MaxSpeed,

thenthefandeceleratesgraduallydowntotheStopSpeedandthenthefanisleftcoastingtostop.

Ifthevalueof“StopSpeed”is

StopSpeed>>MaxSpeed(defaultconfiguration)thenthecontrolleddecelerationisde-activated,andwheneverthespeedisreducedthefanisleftcoastingdowntotherequiredspeedortostand-still.

Ifthevalueof“StopSpeed”is“0”andthesetspeedisalso“0”,thenthefanimpellerisdeceleratedtostand-stillandthenkeptbraked.

Rev. 1 - 08/10/2021


38/54

13. SAFE OPERATING AREA LIMITATIONS

Thespeedlimitscanbeadjustedforthesignalrescaling,butalsotolimitthenoiseinthefinalapplication.The Input Register 2indicatestheSpeedReference(minimumspeedduringalignmentanddraggingandtheSetSpeedinClosedControlLoop).The Input Register 3indicatestheMeasuredSpeed.

13.1 Speed limitation

Thedriverissetbyfactorydefaulttothemaxachievableelectricalinputpowertothedriverdependingonthemodel.DuringthefunctioningitispossibletomonitorthepowerabsorptionbyreadingtheInput Register 31.Ifforsomeapplicationitisnecessarytokeeptheabsorptionofthefanbelowadefinedpowervalue,itispossibletoreducethemaxpoweroutbymodifyingtheHolding Register 36.

13.2 Power limitation

Thedriversaresetbyfactorydefaulttothemaxpeakcurrentoutthatchangesdependingonthemotorwindingscharacteristics.DuringthefunctioningitispossibletoreadthepeakcurrenttothemotorbyreadingtheInput Register 12. ItispossibletoreducethemotorcurrentbymodifyingtheHolding Register 7.Itissuggestedtokeepthemotorcurrentabove3500mA.

13.3 Output current limitation

OnlythePFPsinglePhasehasaninputcurrentlimitof5.9A.At230Vthedrivercansupplyapoweroutputof1350W.Decreasingtheinputvoltage,aderatingoccursbothforinputandoutputcurrent:

13.4 Input current limitation (for 1-phase only)

DuringthefunctioningitispossibletomonitortheinputcurrentbyreadingtheInput Register 32.

Incaseofcompletelylockedrotor,thecurrentinjectedcoulddamagethemotorifitlastsforlongandifthealarmisrepeatedindefinitely.

TheLossofSynchronismalarmisrepeatedforanumberoftimesdefinedbythe"Num Failures Sync"HoldingRegioster57(notchangeablebyusers).Oncethemaxtrialsarereached,thealarmbecomesblocking.Ifthefancanrestartandcanrunforoneminutebeforethemaxnumberisreached,thecounterisreset.

ForfurtherinformationabouttheLossofSynchronism,seeparagraph19.2.

12.10 Locked rotor (for 5.5 kW drivers only)

Rev. 1 - 08/10/2021


39/54

14. OTHER VARIABLES

Thereareothervariablesthatcanbemonitoredforasafeuseofthefan.

14.1 Bus voltage

TheBUSvoltageistheDCvoltageonthebuscapacitors.Thedriveriscontinuouslymonitoringthisvoltageandwillstopthemotorintheeventofunder-voltageorover-voltage.ThevaluecanbemonitoredthroughtheInput Register 9.

14.2 Motor voltage

Themotorvoltageisthepeakvalueofthephasevoltagemodule.Toknowthermslinetolinevalue,itmustbemultipliedby√3/2.ThevaluecanbemonitoredthroughtheInput Register 13.

14.3 Enable Function

AsafetyenablefunctionisavailableanditisactivefortheOperatingModesinthefollowingtable.ThevaluecanbemonitoredthroughtheInput Register 28.

Input type Enable function7 Active2

8 Notactive2

9 Active2

10 Active11 Notactive12 Active

Input type Enable function0 Notactive1 Active2 Active3 Active4 Active1

5 Notactive1

6 Active1

15. DERATING AND OVERHEATING PROTECTIONS

Whenthetemperatureofthedrivercomponentsovertakesadefinedtemperaturethreshold,theperfor-manceisautomaticallyreducedtodecreasetheheating.ItispossibletocheckinrealtimethetemperaturebyreadingtheInput Register 15. Ifitisnotpossibletoreachasteadythermalequilibrium,thedrivershutsdown.Theprotectionactslimitingthecurrenttothemotor.Inthisconditionthedrivergoesinalarm(seechapter18).Oncethetemperatureonthedriverdecreasesunder75°C,thealarmisautomaticallyreset.

15.1 Driver overheating: DERATING

(1)


(2) The algorithm related to the operating mode "Asynchronous Emulation" does not produce significant differences on PFPs in comparison to the operating mode "Speed control". Therefore, its use is not recommended.

WARNINGWARNING

Rev. 1 - 08/10/2021


40/54

TAC

HO

/ AL

ARM

/ FI

LTER

TAC

HO

/ AL

ARM

/ FI

LTER

GN

D

GN

D

MO

DBU

S -B

MO

DBU

S -B

MO

DBU

S -A

MO

DBU

S -A

GN

D

GN

D

TRAN

SUC

ER IN

PUT

TRAN

SUC

ER IN

PUT

ANAL

OG

INPU

T

ANAL

OG

INPU

T

ENAB

LE

ENAB

LE

+10V

+10V

+24V

+24V

ThemotorisprotectedthroughoneormoreThermalProtectors.Ifthemotortemperatureistoohigh,thethermalprotectoropensonephaseandthedriverrecognizestheerrorandstopsthefan(seechapter18).

15.2 Motor overheating: THERMAL PROTECTOR

The Motor Winding temperature and the driver derating are dependent on the fan size and on the fan working point. Therefore, it is possible that the fan could work at 50°C without a performance limitation.

The Driver and motor areas are rated for operating in a temperature range between -20°C and +40°C. The derating is tested and guaranteed from +40°C to +50°C. Higher temperatures could damage the motor winding or the performance could be significantly reduced.

WARNINGWARNING

16. MASTER & SLAVE MODE

ThisfeatureisnotavailableforPFPs.

16.1 Master and Slave 0-5V PWM out

AMaster&SlaveconnectionisnecessarywhenthefanshavetooperateinparallelandinanyConstant-Airflowmode,orundercontroloftheinternalPIDregulator.Havingtwoormorefansself-controllingindependently,whileoperatinginparallel,canmakethesystemunstable.AMaster&Slaveconnectionisneitherneedednorrecommendedwhenthefansinparallelarerunniginanyspeed-controlmode,evenifundercontrolofacommonexternalPIDregulator.

MASTER SLAVE

Thedriverscanbeconnectedinmaster&slavemodemoreeasily.Thesedrivershaveatachometricoutputrangingfrom0to10V.Themastercanhaveanypossibleconfiguration,whiletheslavemustbeconfiguredinAnalogSpeedControlonly. The MASTER must have the Holding Register 46 set at 0 = TACHO.

16.2 Master and Slave 0-10V PWM out

Rev. 1 - 08/10/2021


41/54

17. VARIABLE SWITCHING FREQUENCY (for 3-phase - 4 kW and 5.5 kW)

Thisfeatureisusedtoincreasetheefficiencyandtodecreasetheheatingofthefan.Atslowfanspeedthedriverswitchingfrequencyissetatitsmaximumvalue14kHz,whileathighspeed,theswitchingfrequencyisreducedto8kHz.Inthissituationthenoisegeneratedbythelowerswitchingfrequencyiscoveredbythehigherfannoise.

18. COMMUNICATION

Protocol interface:MODBUSRTU(RS485orBluetooth)

Baud rateThebaudratecanbesetthroughtheHolding Register 47 andthepossiblespeedsare:RS-485 CABLE:9.6kbpsand19.2kbps(higherspeedsarenotallowedduetotheboardOpto-Insulators)UART OFFLINE CABLE:9.6kbps,19.2kbps,38.4kbpsand57.6kbps.

Parity and Stop bitsTheparityandthestopbitscanbechosenbymodifyingtheHolding Register 48andthepossiblechoicesare:

0 No parity, 2 Stop Bits (default)

1 Odd parity, 1 Stop Bit

2 Even parity, 1 Stop Bit

Supported Functions:

03 Read Holding Registers

04 Read Input Registers

06 Write Single Holding Register

Modbus Communication TimeoutWiththisfeatureitispossibletostopthefanwhenthecommunicationislost,afteraperiodoftimesetinthe Holding Register 56.Theregistercanbesetto:

0 No Communication Timeout

1 to 32767 Time expressed in seconds, therefore it is possible to set from 1sec to 9h 6m 8 sec

The value of the Holding Registers is NOT coerced if trying to set a not allowed value.

Whentryingtoenteravalueinanyholdingregister,thevalueisnotoverwrittenifthenewvalueisoutsidetheloadboundaries.

On the Holding Registers the drivers accept Write commands being sent while the motor is running.The register changes are immediately effective on the microcontroller, but the new values are not written in the permanent memory of the driver. If the power supply is switched off, the new values are lost and the driver restarts with the formerly-memorized values. To permanently modify the register settings, any new values in the Holding Registers must be written while the fan is stopped.

Rev. 1 - 08/10/2021


42/54

Broadcast AddressTheBroadcastaddressis0.

1-Phase 3-Phase

1.35kW 2.65kW 4kW 5.5 kW

Baud rate 9600 9600 9600 9600

Parity and Stop Bits 0 0 0 0

Modbus Address 1 1 1 1

UART (OFFLINE) Default Communication Parameters

1-Phase 3-Phase

1.35kW 2.65kW 4kW 5.5kW

Baud rate 57600 57600 57600 57600

Parity and Stop Bits 0 0 0 0

Modbus Address 1 1 1 1

Changing the Baud-rate has an immediate effect, while the other communication parameters require the complete fan power off and consequently power on (wait until the complete discharge of the capacitors and the led turning off, otherwise the changes are not written into the EEPROM).

18.1 Temporary holding register

The Holding Register 66isaspecialregisterusedineachoperatingmodeforsettingthespeed,theairflow,theslipandthePIDreference.Itisnotaphysicalregisteranditcanbewritten,butitisnotpossibletoreaditsvalue.Thesettingremainsactiveuntilthefanispoweredon.

If the fan is powered off but there is a residual charge, the microcontroller of the driver is still functioning. Therefore, if it is powered on in this situation the value set through the register 66 is still active.

18.2 Fixed holding register

ThedriversHoldingRegisterspermanentlystoredintotheEEPROMare64,butonly26registersaremodifiablebytheenduser(seethetableinthefollowingpage).ThemostimportantHolding Register 34 is the Input TyperelatedtotheselectionoftheOperatingMode.

Modbus AddressTheslavedeviceaddresscanbechangedfromvalue1to247bymodifyingtheHolding Register 45.Thedefaultaddressfromfactoryconfigurationis1.

RS-485 Default Communication Parameters

The Modbus communication parameters (Baud-rate, parity and stop-bits) used for the UART port are fixed on all the PFP drivers. The values in the Holding Registers 47 and 48 apply only to the communication via the RS485 port.

Rev. 1 - 08/10/2021


43/54

0 Reset P. 43

1 Min Speed P. 43

2 Max Speed P. 44

7 Max Current P. 44

21 Fixed Speed Setting P. 44

31 PID positive/negative P. 44

32 Avoid Range Start P. 45

33 Avoid Range End P. 45

34 Input Type P. 45

35 Stop Speed P. 45

36 Max Power Out P. 46

18.3 Holding register description

Do not set the values outside the indicated limits, the driver could stop working without any alarm indica-tion, it could be reset or work in an undefined condition.

WARNINGWARNING

Holding Register 0: RESET [Adim] Thisregistercanbeusedtoresetthefanbywritingthevalue1onit.Thisregisterautomaticallyreturnstovalue0afterbeingreset.Thedriverwillresetanyerrorconditionanditwilltrytorestart.

Allowed values = 0 and 1 Default value = 0

Holding Register 1: Min Speed [RPM] Thisregisterisusedtosettheminimumspeedofthefan.

Allowed values =[DefaultValue,MaxSpeed] Default value =tablebelow

280-A 315-A 355-A 400-A 450-A 450-B/-C 500-A 500-B/-C 560-A 500-B/-C 630-A 710-A

1.35kW 1-Phase 500 400 400 300 300 - 300 - - - - -

2.65kW 3-Phase 300 300 150 150 150 - - - - - - -

4kW 3-Phase - - - - 300 - 300 - 300 - 300 -

5.5kW 3-Phase - - - - - 250 - 250 - 250 300 300

If the below reported "Allowed values" are written between square brackets, they must be read as "maximum" and "minimum".

45 Modbus Address P. 46

46 Tacho\Alarm\Filter P. 46

47 Modbus Baud rate P. 46

48 Modbus Parity and Stop Bits P. 47

50 External PID Setting P. 47

51 PID Kp P. 47

52 PID Ki P. 47

53 PID Kd P. 47

54 PID Time P. 47

55 Speed Threshold P. 48

56 Communication Timeout P. 48

18.3.1 Holding Register 0


Rev. 1 - 08/10/2021


44/54

Holding Register 2: Max Speed [RPM] Thisregistercanbeusedtosetthemaxspeedofthefan.

Allowed values =[MinSpeed,DefaultValue] Default value =tablebelow

280-A 315-A 355-A 400-A 450-A 450-B 450-C 500-A 500-B 500-C 560-A 560-B 560-C 630-A 710-A

1.35kW 1-Ph. 3350 2890 2500 2000 168 - - 1425 - - - - - - -

2.65kW 3-Ph. 3350 2890 2680 2480 1950 - - - - - - - - - -

4kW 3-Ph. - - - - 2030 - - 1900 - - 1620 - - 1460 -

5.5kW 3-Ph. - - - - - 2770 2350 - 2500 2100 - 2060 1850 1460 1200

Holding Register 7: Max Current [mA] Thisregistercanbeusedtoreducethemaxmotorcurrent.

Allowed values =[1,Defaultvalue] Default value =tablebelow


1.35kW 1-Ph. 6000 6500 6500 6500 6500 - - 6500 - - - - - -

2.65kW 3-Ph. 4200 5700 6700 8000 6700 - - - - - - - - -

4kW 3-Ph. - - - - 12000 - - 12000 - - 12000 - - 12600 -

5.5kW 3-Ph. - - - - - 13500 11000 - 13500 11000 - 11700 11700 12600 11000

Holding Register 16: Speed Threshold Low [RPM] Thisregistercanbeusedtosetthespeedthresholdlow.Theregisterisactivewhentheregister 46 is set to the value 3.

Holding Register 21: Fixed Speed setting [RPM] ThisregistercanbeusedtosetthespeedinFixed Speed Control Mode. TheregisterisactivewhentheInputTypeHolding Register 34 is set to the value 2.

Allowed values =[MinSpeed,MaxSpeed] Default value = 0

Holding Register 31: PID Positive/Negative [Adim] ThisregistercanbeusedtoinvertthefeedbackbehaviorofthePID.

Allowed values = 0 and 1 Default value = 0

Although the value of the Max Current can be set at any value being lower than the original default one, it is not recommended using a value that is 0.3 times below the default one.






450-B 450-C 500-B 500-C 560-B 560-C 630-A 710-A

- - - - - - - -

5.5kW 3-Ph. 2200 1900 2000 1500 1500 1400 1000 800

Rev. 1 - 08/10/2021


45/54

Holding Register 32: Avoid Range Start [RPM] ThisregistercombinedwiththeAvoidRangeEndcanbeusedtoskipsomeresonancefrequenciesofthefan.

Allowed values =[0,AvoidRangeEnd] Default value = 20000

Holding Register 33: Avoid Range End [RPM] ThisregistercombinedwiththeAvoidRangeStartcanbeusedtoskipsomeresonancefrequenciesofthefan.

Allowed values =[AvoidRangeStart,20000] Default value = 20000

Holding Register 34: Input Type [Adim]Thisregisterdefinesallthepossibleoperatingmodes:

Allowed values =[0,12] Default value = 1

0 ModbusSpeedControl Thespeedissetbymodifyingtheregister661 AnalogSpeedControl Thespeedissetthroughtheanalogsignal2 ModbusFixedSpeedControl Thespeedissetbymodifyingtheregister213 Master&Slave Thefanisconfiguredasslaveandfollowsthemaster

4 AnalogConstantAirflow Theconstantairflowissetthroughtheanalogsignal(1)

5 ModbusTemporaryConstantAirflow Theconstantairflowissetbymodifyingtheregister66(1)

6 ModbusFixedConstantAirflow Theconstantairflowissetbymodifyingthereg.39(1)

7 AnalogAsynchronousEmulation Theemulationissetthroughtheanalogsignal(2)

8 ModbusTemporaryAsynchronousEmulation Theemulationissetbymodifyingtheregister66(2)

9 ModbusFixedAsynchronousEmulation Theemulationissetbymodifyingtheregister30(2)

10 AnalogRef.PIDClosedControlLoop ThePIDref.issetthroughtheanalogsignal11 ModbusTemporaryRef.PIDClosedControlLoop ThePIDref.issetbymodifyingtheregister6612 ModbusFixedRef.PIDClosedControlLoop ThePIDref.issetbymodifyingtheregister50

(1)


(2) The algorithm related to the operating mode "Asynchronous Emulation" does not produce significant differences on PFPs in comparison to the operating mode "Speed control". Therefore, its use is not recommended.

WARNINGWARNING





Holding Register 35: Stop SpeedThisregistercanbeusedtosetthestopspeed.Whenthefanspeedissetto0rpmifthe0<StopSpeed<MaxSpeed,thefandeceleratesgraduallyuntiltheStopSpeedvalueisreachedandthenthefanisletinfreerun.


Rev. 1 - 08/10/2021


46/54

Thepossiblesettingsare:

0 Tachometric ThedigitaloutputindicatesthemeasuredspeedthroughaPWMsignal

1 Alarm Thedigitaloutputindicateswhenanalarmoccurs

2 Threshold ThedigitaloutputindicateswhenthespeedsetintheHoldingRegister55isovertaken

3 Out of Functioning Range Thedigitaloutputindicateswhenthefanisworkinginadefinedrangeofspeeds

Holding Register 47: Modbus Speed [10−1 kbps] ThisregistercanbeusedtosettheModbusspeed.

Allowed values =tableonthefollowingpage Default value = 96

96 correspondingto9.6kbps

192 correspondingto19.2kbps

Value

1.35kW 1-Phase 1350

2.65kW 3-Phase 2650

4kW 3-Phase 4100

5.5kW 3-Phase 4200-5600*

Holding Register 45: Modbus Address [Adim]ThisregistercanbeusedtochangetheModbusaddressofadriver.


Holding Register 46: Tachometric / Alarm / Threshold [Adim] Thisregistercanbeusedtosetthedigitaloutputfunction.

Allowed values =tablebelow Default value = 0




Holding Register 36: Maximum Power [W] Thisregistercanbesettoreducethepowerouttothemotor.

Allowed values =[10,DefaultValue] Default value =tablebelow


*Thevaluedependsonthetypeofimpellerinstalled(450-B:5600;450-C:4200;500-B:5600:500-C:4800;560-B:5300;560-C:5600;630-A:5200;710-A:4200).

Rev. 1 - 08/10/2021


47/54

Holding Register 48: Modbus Stop Bits [Adim] (Default = 0) Thisregistercanbeusedtosettheparityandthestopbits.

Allowed values =tablebelow Default value = 0


0 2StopBits/NoParity

1 1StopBit/EvenParity

2 1StopBit/OddParity

Holding Register 50: External Set [10−1 V] ThisregistercanbeusedtosetthereferenceofthePIDcontrol.


TheregisterisactivewhentheInputTypeHoldingRegisterissettothevalue12.

Holding Register 51: Kp [Adim] ThisregistercanbeusedtosettheProportionalGainofthePIDcontrol.


Holding Register 52: Ki [Adim] ThisregistercanbeusedtosettheIntegralGainofthePIDcontrol.


Holding Register 53: Kd [Adim] ThisregistercanbeusedtosettheDerivativeGainofthePIDcontrol.


Holding Register 54: Period [ms] ThisregistercanbeusedtosetthetimeconstantofthePIDcontrol.







Rev. 1 - 08/10/2021


48/54

18.4 Input register description

TheModbusInputRegistersareintotal33,butonly14areusefulfortheenduser.

2 SpeedReference [rpm] 15 ModuleTemperature [10-1°C]

3 MeasuredSpeed [rpm] 17 Alarm2 [Adim]

9 BusVoltage [10-1V] 28 EnableInput [10/216V]

10 Alarm1 [Adim] 29 AnalogInput [10/216V]

12 MotorCurrent [mA] 30 TransducerInput [10/216V]

13 MotorVoltage [10-1V] 31 MeasuredPower [W]

14 AnalogInput [10-1V] 32 InputCurrent [mA]

Input Register 2: Speed Reference [rpm] Thisregisterindicatesthespeedreferenceduringthefunctioning.Duringthestartingphase,itisequaltotheMinSpeedandthengraduallyincreasestothetargetspeeddependingontheselectedmode.

Input Register 3: Measured Speed [rpm] Thisregisterindicatesthespeedduringthefunctioning.

Input Register 9: Bus Voltage [10−1 V] ThisregisterindicatestherectifiedvoltageafterthePFCstage.

Input Register 10: Alarm 1 [Adim] ThisregistermustbecombinedwiththeAlarm2register(seethetableinparagraph18.2)

Input Register 12: Motor Current [mA] Thisregisterindicatesthepeakvalueofthelinecurrentmodule.Toknowthermsvalue,itmustbedividedby√2.

Allowed values =[0,MaxSpeed] Default value = 0

Allowed values (Functioning Indication mode) =[SpeedThresholdLow,MaxSpeed]

Holding Register 56: Communication Timeout [s]Thisregistercanbeusedtosetatimeoutperiodforthecommunication.

Allowed values =[0,9hour8min8sec] Default value = 0

SpeedThreshold=0meansthatitis DEACTIVATED

AttheendoftheperiodsetintotheregisterthefanstopsandthereisanAlarmindication.Torestartaresetcommand must be sent. CommunicationTimeout=0meansthatitisDEACTIVATED



Holding Register 55: Speed Threshold (or Speed Threshold HIGH) [RPM] Thisregistercanbeusedtosetthespeedthreshold,whenthemeasuredspeedintheInputRegister3over-takesthethresholdvalue.

Rev. 1 - 08/10/2021


49/54

Input Register 13: Motor Voltage [10−1 V]Thisregisterindicatesthepeakvalueofthephasevoltagemodule.Toknowthermslinetolinevalue,ithastobemultipliedby√3/2.

Input Register 14: Analog Voltage [10−1 V]Thisregisterindicatestheanalogvoltagevaluepresentattheinput.Input Register 15: Module Temperature [10−1 °C]This register indicates the temperatureof thepowermoduleof thedriver.When thevalueexceeds thetemperaturethreshold,thedriverentersinaderatingprocesswheretheperformancesareautomaticallydecreaseduntilathermalequilibriumbelowthetemperaturethresholdisreached.Ifthisequilibriumisnotreached,thefanstopsandanalarmconditionisactivated.Assoonastheheatingdecreasesandthepowermoduletemperatureisbelowthetemperaturethreshold,thealarmisautomaticallyreset.ThisthresholdvaluecanbereadinHolding Register 29.Input Register 17: Alarm 2 [Adim] ThisregistermustbecombinedwiththeAlarm1register.

Input Register 28: Enable Input [Adim] ThisinputindicatestheENABLEstate.Thevaluemustbemultipliedby10V/216tohavethecorrespondingvoltagevalue.

Input Register 29: Analog Input [Adim] ThisinputindicatestheReferenceValue.Thevaluemustbemultipliedby10V/216tohavethecorrespondingvoltagevalue.

Input Register 31: Measured Power [W] Thisregisterindicatestheabsorbedpower.Input Register 32: Input Current [mA] Thisinputindicatestheinputabsorbedcurrent.

18.5 Fan info and Modbus registers

The Holding Register 44 indicates the fan model.


1.35kW 1-Ph. 1 2 3 4 5 - - 6 - - - - - - -

2.65kW 3-Ph. 1 2 3 4 5 - - - - - - - - - -

4kW 3-Ph. - - - - 1 - - 2 - - 3 - - 4 -

5.5kW 3-Ph. - - - - - 1 6 - 2 7 - 3 8 4 5

The Input Register 0indicatesthedriverfirmwareversionandtheInput Register 1indicatesthedrivermodel.

1-Phase 3-Phase

1.35kW 2.65kW 4kW 5.5kW

Frequency Converter

Model49696 40995 49187 61475

Frequency Converter

Code1431F2 1431F3 1431F9 1431G5

Input Register 30: Transducer Input [Adim] ThisinputindicatestheTransducerValue.Thevaluemustbemultipliedby10V/216tohavethecorrespondingvoltagevalue.

Rev. 1 - 08/10/2021


50/54

19. ALARM HANDLING

Whenamalfunctioningoccurs,thedriverhastwopossiblebehaviorsdependingonthecauseofthealarm:

BLOCKING Thecauseofthealarmisverydangerous->Thedriverstopsimmediately.Torestartthefan,oncetheproblemhasbeencorrected,itisnecessarytoresetthefanorpowerthedriverofffor5minutes.

AUTO-RESTARTING Thecauseofthealarmiscontingenttoawrongsettingorwrongworkingcondition.Thealarmindica-tionsareactivated,butaftersomesecondsthefantriestorestartautomatically.

Thealarmscanbemonitoredthroughthreedifferentways:• ModbusRegisters• BlinkingLED• DigitalOutput

19.1 Monitoring

Inthefollowingtable,thealarmsandthevaluesstoredintherelatedModbus Input Register 10 and Input Register 17 areindicated.

19.2 Modbus registers - Alarm description

Alarm 1 Alarm 2 Description Actions Type0 0 Default operation – No Errors No Actions ALARM 11 0 Memory error Blocking condition ALARM 22 0 Short Circuit Blocking condition ALARM 33 0 Loss of synchronism Auto-restarting condition* ALARM 44 1 Input Voltage outside range (only with motor stopped) Auto-restarting condition ALARM 44 32 BUS overvoltage (instantaneous measurement) Auto-restarting condition ALARM 44 33 BUS undervoltage (instantaneous measurement) Auto-restarting condition ALARM 44 34 Input relay not closed Auto-restarting condition ALARM 44 49 Missing phase – U cable disconnected Blocking condition ALARM 44 50 Missing phase – V cable disconnected Blocking condition ALARM 44 51 Missing phase – W cable disconnected Blocking condition ALARM 44 52 High starting current Auto-restarting condition ALARM 44 113 Overtemperature Auto-restarting condition ALARM 44 255 Loss of communication Blocking condition ALARM 4

The Driver is NOT protected against a very high-power supply voltage. A very low power supply voltage during the motor running could damage Driver.

* Afterlossofsynchronism,theauto-restartingconditionisactivatedfor1.35kW,2.6kWand4kWdrivers.Incaseoflossofsynchronismfor5.5kWdrivers,theblockingconditionisactivatedafterfivefailedattemptsandthefanmustberesetmanually.

Checktheblockingreasonsandclosethegateincaseofoppositeflow.

WARNINGWARNING

Rev. 1 - 08/10/2021


51/54

ThedriveroutputcanbeconfiguredasAlarmoutputbymodifyingtheHolding Register 46tovalue1.Duringthenormalfunctioning,thevalueis0Vand,whenanalarmoccurs,theoutputvalueis10V.

19.4 Digital Alarm Output

Thealarmsareautomaticallyresetfollowingtheactionofthetablebelow:

19.5 Alarm Reset

Operating Mode Input Type Action

Analog 1,4,7,10 Signalsetto0V

Fixed 2,6,9,12 Registers21,39,30and50setto0

AsconcernstheTemporaryModbusmode,itisnecessarytoresetthefanbysettingtheHolding Register 0 tovalue=1insteadofsettingto0theRegister 66.

Temporary 0,5,8,11 Register0setto1

TheHoldingRegister0isageneralresetandworksalsointheAnalogmodeandFixedmode.

ThesystemstatuscanbedisplayedthroughtheLEDonthedriverplate(seepar.9.6).InthefollowingfigureontherighttheblinkingLEDisshown.

19.3 Blinking LED - Alarm description

1 sec.

10V

0V

V

s

Rev. 1 - 08/10/2021


52/54

21. AVAILABLE SOFTWARE

AfreewaresoftwareisavailableonNicotra Gebhardtsite(http://www.nicotra-gebhardt.com)formonitoringthe fan. Thesoftwarecanbeusedforconfiguringthefanandmonitoringtheperformance.

Pleaserefertotherelatedmanualformoredetails.

20. DRIVER REPLACEMENT

Thesefans,theirmotorsanddriversaredesignedformaintenance-freelong-lastingoperationandforhighreliability.Undernormaloperatingconditions,therearenopartsinsidewhichmayneedservicing.

If,underextremeconditions,adrivershouldneedreplacement,thePrintedCircuitBoardsofthedrivershallneverberemovedfrominsidethedriverenclosure.Removingthemfromtheirenclosurewouldcompromisetheirthermalbondingontotheheat-sinkandmighteasilydamagesomecriticalcomponents.

Theentire cylindricalenclosure isdesigned, instead, tobe removed from themotorand replaced. Thereplacementofthedriverdoesnotaffecttherotorandimpellerassembly,andconsequentlydoesnotrequirere-balancingofthefan.

Step-by-stepreplacementinstructionscanbeprovidedonrequest.

Rev. 1 - 08/10/2021


53/54

Rev. 1 - 08/10/2021


54/54

Regal Beloit Italy S.p.A.

Via Modena, 1824040 Ciserano (BG) ITALYPhone +39 035 873 111Fax +39 035 884 319www.regalbeloit.com

Documents

EC FAN PFP OPERATING MANUAL - Nicotra Gebhardt