Toro Reelmaster 5010- H - Fault 117: Internal Regulator Undervolt-M;G

Fault117:InternalRegulator
Undervolt—M/G
InfoCenterDisplay:
_____ FAULT#117 _____
Int.Reg.LOV
FaultDescription
Insufcientvoltageoccurredattheinternalvoltageregulatoranddisabledthegenerator.The15Vundervoltage
faultisreportedwhenthecomponentmeasuresa15Vsystemvoltageunderanundervoltagesetpoint.This
faultcausesthemotortobedisabled.Amethodofdetectingasystemshutdownisalsodesirabletoprevent
falserecordingofshutdownsasundervoltagefaults.
CircuitDescription
Themotor/generatorcontrollermonitorsaninternalvoltageregulator.
ConditionsforSettingtheFault
Insufcientvoltageoccurredattheinternalvoltageregulatoranddisabledthegenerator.
Note:Thisfaultismostlikelytooccurifthemotor/generatorlosespowerunexpectedlywithouttheproper
shutdownsequence.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page21).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page22)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:InspectmainharnessconnectorP37.
MainharnessconnectorP37isattachedtothemotor/generator.Removetheconnectorfromthe
motor/generatorandinspectitfor:
•Damage
•Recessedpins
•Wiringintegrity
•ProperengagementoftheharnessconnectorP37totheconnectoronthemotor/generator.
427