Toro Groundsmaster 4500-D Series - Page 62

Fault
ID
FaultTitle
Contro-
ller(s)
Affected
FaultCondition
/Circuit
Description
Additional
Notes
ServiceActions
P110D
TractionCoil1
FWD-Validation
Failure-PWM
Converge
T1PWMconvergence
ischecking2fault
conditions.The
rstcheckisto
conrmthatthe
PWMdutycycle
acrossthecoilis
decreasingwhen
thedesiredcurrent
tothecoilis0.
Thisensuresthe
voltageacrossthe
coilisapproaching
0whenrequired.
Thesecondcheck
toverifythatthe
PWMdutycycle
acrossthecoilis
notgreaterthan
themaxallowed
limit.
Tractionis
disabledand
machinewill
cometoa
suddenstop.
1.UsetheInfoCentertoverifythetraction
coiloperation.
2.Ifnoamperagereadingisdisplayed:
A.Checkthetractioncoilwiringand
connector(P74,pin17).
B.Testthetractioncoilwiring.
3.Testthetractioncoil.
4.SwaptheT1:Primarycontrollerwitha
known-goodunit(contactanAuthorized
ToroDistributorforassistance).
P110E
TractionCoil1
FWD-Feedback
Measurement
Validation
Failure
T1Theexpected
circuitfeedback
(calculated)does
notmatchthe
measuredcircuit
feedback.
Tractionis
disabledand
machinewill
cometoa
suddenstop.
1.UsetheInfoCentertoverifythetraction
coiloperation.
2.Ifnoamperagereadingisdisplayed:
A.Checkthetractioncoilwiringand
connector(P74,pin17).
B.Testthetractioncoilwiring.
3.Testthetractioncoil.
4.SwaptheT1:Primarycontrollerwitha
known-goodunit(contactanAuthorized
ToroDistributorforassistance).
P1114
TractionCoil
1REV-
Overcurrent
T1
Overcurrent
detectedon
tractioncoil1REV
(NeutralREV).
Indicatesshortto
ground.
1.UsetheInfoCentertoverifythetraction
coiloperation.
2.Ifnoamperagereadingisdisplayed:
A.Checkthetractioncoilwiringand
connector(P74,pin32).
B.Testthetractioncoilwiring.
3.Testthetractioncoil.
4.SwaptheT1:Primarycontrollerwitha
known-goodunit(contactanAuthorized
ToroDistributorforassistance).
Troubleshooting:Page3–22
Groundsmaster
®
4500-D/4700-D
19245SLRevA