Toro Reelmaster 5010- H - Fault 97: 48 V Bus Overvolt-CRM 4

Fault97:48VBusOvervolt—CRM4
Note:Whenanyindividualcuttingreelmotorisshutoffduetoafault,theTEC-5002shutsofftheother4
cuttingreelmotors.
Note:Ifmultiplemachinefaultsarereportedwithinafewseconds,troubleshootingshouldbeginwiththe
rstcuttingreelmotortoreportafault.
Note:All48Vdcdevicesareconnectedtothesame48Vdcbus.Ifthisisasystemissue,theTEC-5002
combinesall6ofthe48VBusOvervoltfaults(faults94though99)andreportsafault30(48VBusHighVoltage).
InfoCenterDisplay:
_____ FAULT#97 _____
48VBusHIV 4
FaultDescription
Cuttingreelmotor4hasdetected67.5Vdcormoreonthe48Vdcbus.
CircuitDescription
All5cuttingreelmotorsaresuppliedwith48Vdcbuspower.
ConditionsforSettingtheFault
Ifcuttingreelmotor4detectsthatthe48Vdcbusvoltagehasexceededthehighlimitof67.5Vdc,thisfault
isreported.
Note:ThisfaultcanalsooccuriftheTEC-5002losescommunicationwiththemotor/generatorandreverts
tolimpmode.WhentheTEC-5002losescommunication,itlosesenginespeedcontrol,andthemechanical
governorlimitsenginespeedto3,200rpm.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page21).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page22)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Determinethetroubleshootingstrategy.
Ifmultiplecuttingreelmotorsarereportingabusovervoltfault,gotofault31andfollowthediagnosticsteps
forthatfault.
Ifcuttingreelmotor4istheonlycomponentreportingthisfault,gotostep3.
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