Toro Reelmaster 5010- H - Fault 59: Main Contactor-Open Failure

Fault59:MainContactor—OpenFailure
InfoCenterDisplay:
_____ FAULT#59 _____
ContactorOpen
FaultDescription
Themaincontactor—openfaultindicatesafailureassociatedwithcontrolofthe48Vdccontactor.Ifthekey
switch(48Vlogic)andbusvoltageofthemotor/generatorhavemorethanan8Vdcdifferencewhenthe
contactorisengaged,thisfaultisreported.
CircuitDescription
Themaincontactorexistsinthe48Vdcsystemtoconnectthe48Vdcbatterypacktothemotor/generatorand
cuttingreelmotors.Themotor/generatorcontrollerdetermineswhenthemaincontactorisclosed.
ConditionsforSettingtheFault
Themotor/generatormonitorsthe48Vdcbustodetectfailuresofthecontactororthecontactorcontrolcircuit.
Themotor/generatormeasuresthevoltageonbothsidesofthecontactor.Faultsoccurwhenthevoltages
aresupposedtobethesame,buttheyaredifferent.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page21).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page22)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Testthemain48Vdccontactor.
RefertoChapter5ofthe5010-HServiceManualandtestthemaincontactor.
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