Toro reelmaster 5410 series - Yanmar Engine Electronic Control Unit (ECU)

CAN-busCommunications(continued)
componentsofthemachineandbringthemtogetherasone.TheCAN-bus
systemreducesthenumberofelectricalcomponentsandconnectionsthatare
usedonthemachineandallowsthenumberofwiresinthewireharnesstobe
signicantlyreduced.Theintegrationoftheelectricalfunctionsalsoallowsthe
InfoCenterdisplaytoassistwiththeelectricalsystemdiagnostics.
TheCANidentiesthecontrollerareanetworkthatisusedbetweencontrol
componentsonthemachine.The2speciallydesigned,twistedcablesformthe
bus.Thebuswiresareblack/whiteandred/white.Thesewiresprovidethedata
pathwaysbetweentheTEC,YanmarengineECU(ifequipped),andInfoCenter
displayusedonthemachine.Theengineeringtermforthesecablesarethe
CANHighandCANLow.Attheendsofthetwistedpairofbuscablesarethe
120-ohmterminatorresistors.Oneoftheseresistorsisincludedinthewire
harnessneartheInfoCenterdisplayandthesecondiseitherinsidetheengine
ECUorincludedintheenginewireharness.
TheCAN-buslinkcontrolseachofthecomponentsthatrequiresonly4wires
tooperateandcommunicatetothesystem:CANHigh,CANLow,B+(power),
andground.TheCAN-busneedsthekeyswitchON/RUNinputfortheTECand
engineECUtobeactivated.
IMPORTANT
Theterminatorresistorsattheendsofthebuscablesarerequired
forproperelectricalsystemoperation.
YanmarEngineElectronicControlUnit(ECU)
g213075
Figure195
1.Diesel-particulatelter(DPF)2.ElectronicControlUnit(ECU)
MachineswithaYanmardieselengineuseanelectroniccontrolunit(ECU)for
enginemanagementandtocommunicatewiththeTECandInfoCenterdisplay
onthemachine.IfyoumustdisconnecttheengineECUforanyreason,ensure
thatthekeyswitchisintheOFFpositionwiththekeyremovedforaminimumof
30secondsbeforedisconnectingtheengineECU.
ElectricalSystem:GeneralInformation
Page7–4
Reelmaster
®
5410/5510/5610Series
15216SLRevC