Toro Groundsmaster 4300-D - General Information; Electrical Schematic and Wire Harness Drawings;Diagrams; Toro Electronic Controller (TEC); CAN-Bus Communications

GeneralInformation
TheOperator’sManualprovidesinformationregardingtheoperation,general
maintenance,andmaintenanceintervalsforyourmachine.Refertothe
Operator’sManualforadditionalinformationwhenservicingthemachine.
ElectricalSchematicandWireHarnessDrawings/Diagrams
RefertotheElectricalSchematicandWireHarnessDrawings/Diagramsin
AppendixA(pageA–1).
ToroElectronicController(TEC)
TheGroundsmaster4300-DmachinesuseaT oroElectronicController(TEC)
tomanagethemachineelectricalfunctions.Thecontrollerisamicroprocessor
controlleddevicethatmonitorstheconditionofvariousswitches(inputs)and
thendirectselectricalpowertocontroltheappropriatemachinefunctions
(outputs)basedontheinputs.Thestatusofinputstothecontrolleraswellas
outputsfromthecontrollerscanbemonitoredwiththeInfoCenterdisplay.
TheTECislocatedbehindthecontrolarmaccesscovernexttothefuseblock.
IMPORTANT
Beforeperforminganyweldingonthemachine,dothefollowingto
preventdamagingtheelectricalsystemofthemachine:
•Disconnectthebatterycablesfromthebattery.
•DisconnectthewireharnessconnectorfromtheT oroElectronicController.
•DisconnectthewireharnessconnectorsfromtheengineECU.
•Disconnecttheterminalconnectorfromthealternator.
CAN-busCommunications
TheTEC,YanmarengineECU,andInfoCenterdisplayusedonthe
Groundsmaster4300-DmachinescommunicatewitheachotheronaCAN-bus
system.Thissystemallowsthetractionunittofullyintegrateallthedifferent
electricalcomponentsofthemachineandbringthemtogetherasone.The
CAN-bussystemreducesthenumberofelectricalcomponentsandconnections
thatareusedonthemachineandallowsthenumberofwiresinthewireharness
tobesignicantlyreduced.Theintegrationoftheelectricalfunctionsalsoallows
theInfoCenterdisplaytoassistwiththeelectricalsystemdiagnostics.
TheCANidentiesthecontrollerareanetworkthatisusedonthemachine.
The2speciallydesigned,twistedcablesformthebus.Thesewiresprovidethe
datapathwaysbetweentheTEC,YanmarengineECU,andInfoCenterdisplay
usedonthemachine.TheengineeringtermforthesecablesaretheCANHigh
andCANLow.Attheendsofthetwistedpairofbuscablesarethe120-ohm
terminatorresistors.
TheCAN-buslinkcontrolseachofthecomponentsthatrequiresonly4wires
tooperateandcommunicatetothesystem:CANHigh,CANLow,B+(power),
andground.
IMPORTANT
Theterminatorresistorsattheendsofthebuscablesarerequired
forproperelectricalsystemoperation.
Groundsmaster
®
4300-D
Page5–3
ElectricalSystem:GeneralInformation
16226SLRevC