Toro Greensmaster TriFlex 3400 - Fault 128: Short Detected - Unknown Reel Motor

Fault128:ShortDetected–UnknownReel
Motor
InfoCenterDisplay:
_____FAULT#128____
UNKNOWN-
SHORTED
FaultDescription
Oneofthethreereelmotorshasaninternalshortcircuit.TheTECisunabletodenewhichmotorhasthe
problem.
CircuitDescription
Thethreecuttingreelmotorsinthemachineareidentical48V,1100watt,brushless,permanentmagnet
motors.Eachmotorhasitsownintegralinverterandon-boardcontroller.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page19).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page21)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Disconnectall3reelmotorsandrecheckforthefault.
Thisstepwillshowwhetherthefaultiscausedbyareelmotor.
1.GotoPreparingforTroubleshootingand/orTesting(page20)andfollowthestepslisted.
2.Disconnect48Vpowerfromthecuttingunitsbyseparatingthecuttingunitpowerconnectors.This
preventsunexpectedoperationofcuttingunits.RefertoConnectingandDisconnectingthe48VPower
totheCuttingReelMotors(page18).
3.Locateanddisconnectthe2cuttingreelmotorconnectorsfromthee-reelsharnessconnectorsP17
andP18forcuttingunit1.(Figure167).
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