Toro Greensmaster TriFlex 3400 - Fault 44: 48 Volt Battery - Undervolt

Fault44:48VoltBattery–Undervolt
InfoCenterDisplay:
____FAULT#44____
48VSYSTEM
POWERBUS
UNDERV
Note:All48Vdevicesareconnectedtothesame48Vbus.Ifthisisasystemissue,theprimaryTECwill
combineall4component48VBusUndervoltfaultsinto1andfault44willreport.
FaultDescription
Thisfaultisreportedwhenall4individual48Vbuscircuitlowvoltagealertsareactiveatthesametime.
Fault44isindicativeoflowbatterypower.IndividualcuttingunitorS/Gfailuresreportindividually.
CircuitDescription
Allfour48Vdevicesarereportingalowvoltagefault.Theelectricreelmotorsreportthisfaultat32Vandthe
S/Greportsthisfaultat36V.Asaresult,thebusvoltagemustbebelow32Vforthefaulttooccur.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page19).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page21)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Testthebatteryvoltage.
RefertoChapter6oftheGreensmasterTriFlex3320/3420ServiceManualandfollowtheBatteryPackService
proceduretotestthebatteries.
Pass
Thebatteriesallpassedthevoltageandloadtest.GotoStep3.
Fail
Someorallofthebatteriesdidnotpassthevoltageandloadtest.Replaceallofthebatteries.Goto
ReturningtheMachinetoService(page21)andfollowthestepslisted.
Step3:Testthemaincontactor
FollowtheprocedureintheGreensmasterTriFlex3320/3420ServiceManualtotestthemaincontactor.
Pass
Themaincontactorpassedthefunctiontest.GotoStep4.
Fail
Themaincontactordidnotpassthefunctiontest.Replacethemaincontactor.GotoReturningthe
MachinetoService(page21)andfollowthestepslisted.
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