Toro Reelmaster 5010- H - Fault 63: 48 V Precharge Failure

Fault63:48VPrechargeFailure
InfoCenterDisplay:
_____ FAULT#63 _____
48VPrecharge
FaultDescription
Thisfaultindicatesafailureassociatedwiththeprechargecircuitthatchargesthebuscapacitancepriorto
closingthe48Vdclinecontactor.
CircuitDescription
WhentheignitionkeyisturnedtotheONposition,themotor/generatormonitorstheprechargevoltageleveland
thetimeittakestobecomefullycharged.
ConditionsforSettingtheFault
Theminimumvoltageof38Vdconthe48Vdcprechargecircuitwasnotachieved.Functionalityisbuiltintothe
motor/generatortodetectcuttingreelmotorfaultsonthe48Vdcbus.
Thisfaultisusedtodetectthereversepolarityofacuttingreelmotororashorted48Vdcpowerbuswithinany
ofthe48Vdcelectriccomponentsorwireharnesses.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page21).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page22)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Determineiftheproblemisinacuttingreelmotororthe
mainwireharness.
1.Disconnectthecablesforall5cuttingreelmotorsfromthemachine.
2.Attempttostarttheengine.
Note:Iftheenginestartswhileall5cuttingreelmotorsaredisconnected,1ofthecuttingreelmotors
isbad.
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