GE AF-70 LP User Manual

AF-70 LP
Power & Control Wiring
Connection Diagram
4
13

12
ShieldTermination(CableScreen)
Thesafetygroundterminalprovidesagroundingpointforthemotorcableshield.Themotorcableshieldconnectedtothisterminal(driveend)
shouldalsobeconnectedtothemotorunit(motorend).UseashieldterminatingorEMIclamptoconnecttheshieldtothesafetyground
terminal.
4.3. IncomingPowerConnection
4.3.1. CableSelection
• For1phasesupply,themainspowercablesshouldbeconnectedtoL1/L,L2/N.
• For3phasesupplies,themainspowercablesshouldbeconnectedtoL1,L2,andL3.Phasesequenceisnotimportant.
• ForcompliancewithCEEMCrequirements,refertosection4.10EMCCompliantInstallationonpage14.
• AfixedinstallationisrequiredaccordingtoIEC61800-5-1withasuitabledisconnectingdeviceinstalledbetweentheAF-70andtheAC
PowerSource.Thedisconnectingdevicemustconformtothelocalsafetycode/regulations(e.g.withinEurope,EN60204-1,Safetyof
machinery).
• Thecablesshouldbedimensionedaccordingtoanylocalcodesorregulations.Maximumdimensionsaregiveninsection9.2.
4.3.2. Fuse/CircuitBreakerSelection
• Suitablefusestoprovidewiringprotectionoftheinputpowercableshouldbeinstalledintheincomingsupplyline,accordingtothedatain
section9.2RatingTables.Thefusesmustcomplywithanylocalcodesorregulationsinplace.Ingeneral,typegG(IEC60269)orULtypeJ
fusesaresuitable;howeverinsomecasestypeaRfusesmayberequired.Theoperatingtimeofthefusesmustbebelow0.5seconds.
• Whereallowedbylocalregulations,suitablydimensionedtypeBMCBcircuitbreakersofequivalentratingmaybeutilisedinplaceoffuses,
providingthattheclearingcapacityissufficientfortheinstallation.
• ThemaximumpermissibleshortcircuitcurrentattheAF-70PowerterminalsasdefinedinIEC60439-1is100kA.
4.3.3. OptionalInputChoke
• AnoptionalInputChokeisrecommendedtobeinstalledinthesupplylinefordriveswhereanyofthefollowingconditionsoccur:-
o Theincomingsupplyimpedanceisloworthefaultlevel/shortcircuitcurrentishigh
o Thesupplyispronetodipsorbrownouts
o Animbalanceexistsonthesupply(3phasedrives)
o Thepowersupplytothedriveisviaabusbarandbrushgearsystem(typicallyoverheadCranes).
• Inallotherinstallations,aninputchokeisrecommendedtoensureprotectionofthedriveagainstpowersupplyfaults.Partnumbersare
showninthetable.
Supply
UnitSize
ACInputInductor
230Volt
1Phase
1
ACR12A2H5/129792
2
ACR18A1H3/129793
3
ACR22A0H84/129794
230Volt
3Phase
1
ACR6A2H5/129979
2
ACR12A0H84/129982
3
ACR27A0H37/129983
4
ACR35A0H27/129984
400Volt
3Phase
1
ACR4A5H1/129990
2
ACR10A2H/129992
3
ACR27A0H75/129995
4
ACR45A0H45/129998
4.4. MotorConnection
• Thedriveinherentlyproducesfastswitchingoftheoutputvoltage(PWM)tothemotorcomparedtothemainssupply,formotorswhich
havebeenwoundforoperationwithavariablespeeddrivethenthereisnopreventativemeasuresrequired,howeverifthequalityof
insulationisunknownthenthemotormanufacturershouldbeconsultedandpreventativemeasuresmayberequired.
• ThemotorshouldbeconnectedtotheAF-70U,V,andWterminalsusingasuitable3or4corecable.Wherea3corecableisutilised,with
theshieldoperatingasanearthconductor,theshieldmusthaveacrosssectionalareaatleastequaltothephaseconductorswhentheyare
madefromthesamematerial.Wherea4corecableisutilised,theearthconductormustbeofatleastequalcrosssectionalareaand
manufacturedfromthesamematerialasthephaseconductors.
• ThemotorearthmustbeconnectedtooneoftheAF-70earthterminals.
• Maximumpermittedmotorcablelengthforallmodels:100metresshielded,150metresunshielded.
4.5. MotorTerminalBoxConnections
Mostgeneralpurposemotorsarewoundforoperationondualvoltagesupplies.Thisisindicatedonthenameplateofthemotor.This
operationalvoltageisnormallyselectedwheninstallingthemotorbyselectingeitherSTARorDELTAconnection.STARalwaysgivesthehigher
ofthetwovoltageratings.

IncomingSupplyVoltage
MotorNameplateVoltages
Connection
230 230/400
Delta

400
400/690
400 230/400 Star



GE AF-70 LP Specifications

General

Brand	GE
Model	AF-70 LP
Category	Inverter
Language	English