Toro Reelmaster 5010- H - Fault 127: Invalid Hall State-CRM 4

Fault127:InvalidHallState—CRM4
InfoCenterDisplay:
_____ FAULT#127 _____
BADHallState 4
FaultDescription
TheinvalidHallstatefaultindicatesthattheHalleffectsensorsinthecuttingreelmotorareprovidingan
invalidmotorspeedreading.Whenasensorfails,thecuttingreelmotorcannotmaintainsteadyspeedand
becomesunstable.
CircuitDescription
Eachcuttingreelmotorisequippedwithaseriesof3identicalHalleffectsensorstomonitormotorspeed.
Theseareintegraltothecuttingreelmotorandcannotbeserviced.
ConditionsforSettingtheFault
Ifall3oftheHalleffectsensorsprovidethesamesignal,aninvalidHallstateisindicatedandthefaultis
reported.Nocontrolleractionistaken.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page21).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page22)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Swapcuttingreelmotorsbetweencuttingunits.
Allofthecuttingreelmotorsareidentical.
1.GotoPreparingforTroubleshootingand/orT esting(page22)andfollowthestepslisted.
2.Unplugthe48Vdcbatterydisconnecttopreventunexpectedcuttingunitoperation.RefertoConnecting
andDisconnectingthe48VdcBatterySystem(page19).
3.Swapcuttingreelmotor4withacuttingreelmotorfromadifferentcuttingunit.Youcanobtainmore
informationonreplacingthecuttingreelmotorinChapter5ofthe5010-HServiceManual.
4.Pluginthe48Vdcbatterydisconnect.RefertoConnectingandDisconnectingthe48VdcBatterySystem
(page19).
5.Operatethemachine.
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