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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
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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
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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
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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
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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.
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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
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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
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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
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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.
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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
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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
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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
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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
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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
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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.
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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.
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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
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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
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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
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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
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PFP 4kW-5.5kW 3-Phase
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.
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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
PFP 4kW-5.5kW 3-Phase
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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
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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.
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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
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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.
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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.
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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
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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.
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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
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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.
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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
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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.
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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:
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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.
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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.
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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.
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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)
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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)
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.
(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
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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
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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.
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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.
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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
18.3.2 Holding Register 1
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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
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. 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.
18.3.2 Holding Register 2
18.3.3 Holding Register 7
18.3.4 Holding Register 16
18.3.5 Holding Register 21
18.3.6 Holding Register 31
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
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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)
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.
(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
18.3.7 Holding Register 32
18.3.8 Holding Register 33
18.3.9 Holding Register 34
18.3.10 Holding Register 35
Holding Register 35: Stop SpeedThisregistercanbeusedtosetthestopspeed.Whenthefanspeedissetto0rpmifthe0<StopSpeed<MaxSpeed,thefandeceleratesgraduallyuntiltheStopSpeedvalueisreachedandthenthefanisletinfreerun.
Allowed values =[0,20000] Default value = 20000
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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.
Allowed values =[1,247] Default value = 1
Holding Register 46: Tachometric / Alarm / Threshold [Adim] Thisregistercanbeusedtosetthedigitaloutputfunction.
Allowed values =tablebelow Default value = 0
18.3.12 Holding Register 45
18.3.13 Holding Register 46
18.3.14 Holding Register 47
Holding Register 36: Maximum Power [W] Thisregistercanbesettoreducethepowerouttothemotor.
Allowed values =[10,DefaultValue] Default value =tablebelow
18.3.11 Holding Register 36
*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).
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Holding Register 48: Modbus Stop Bits [Adim] (Default = 0) Thisregistercanbeusedtosettheparityandthestopbits.
Allowed values =tablebelow Default value = 0
18.3.15 Holding Register 48
0 2StopBits/NoParity
1 1StopBit/EvenParity
2 1StopBit/OddParity
Holding Register 50: External Set [10−1 V] ThisregistercanbeusedtosetthereferenceofthePIDcontrol.
Allowed values =[0,100] Default value = 0
TheregisterisactivewhentheInputTypeHoldingRegisterissettothevalue12.
Holding Register 51: Kp [Adim] ThisregistercanbeusedtosettheProportionalGainofthePIDcontrol.
Allowed values =[0,32767] Default value = 0
Holding Register 52: Ki [Adim] ThisregistercanbeusedtosettheIntegralGainofthePIDcontrol.
Allowed values =[0,32767] Default value = 0
Holding Register 53: Kd [Adim] ThisregistercanbeusedtosettheDerivativeGainofthePIDcontrol.
Allowed values =[0,32767] Default value = 0
Holding Register 54: Period [ms] ThisregistercanbeusedtosetthetimeconstantofthePIDcontrol.
Allowed values =[0,32767] Default value = 0
18.3.16 Holding Register 50
18.3.17 Holding Register 51
18.3.18 Holding Register 52
18.3.19 Holding Register 53
18.3.20 Holding Register 54
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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
18.3.22 Holding Register 56
18.3.21 Holding Register 55
Holding Register 55: Speed Threshold (or Speed Threshold HIGH) [RPM] Thisregistercanbeusedtosetthespeedthreshold,whenthemeasuredspeedintheInputRegister3over-takesthethresholdvalue.
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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.
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. 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.
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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
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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
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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.
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