Groundsmaster 4100--D/4110--DPage 5 -- 2Electrical System
General Information
Operator’s Manual
The Operator’s Manual provides information regarding
the operation, general maintenance and maintenance
intervalsforyourGroundsmastermachine.Refertothat
publicationforadditionalinformationwhenservicingthe
machine.
Toro Electronic Controllers (TEC)
Groundsmaster4100--Dand4110--Dmachinesusetwo
(2) Toro Electronic Controllers (TEC) to manage ma-
chine electrical functions. The controllers are micropro-
cessor controlled that sense the condition of various
switches (inputs) and direct electrical power to control
appropriate machine functions (outputs) based on the
inputs. Communication between the two Toro control-
lers is provided with a CAN--bus system. The status of
inputsto thecontrollers as wellasoutputs fromthe con-
trollers can be monitored with the Diagnostic Display
(see Special Tools in this chapter).
The controllers appear identical but they are differentin
termsoftheconnectorsandinternalhardware.Theyare
arrangedin”master / slave”configurationandtherefore
cannotbeinterchanged.TheTEC--5002mastercontrol-
ler is responsible for powering up the TEC--5001 slave
controller.TheTEC--5002alsocontrolsthe engine start
circuit.
IMPORTANT: Beforeperforminganyweldingonthe
machine, disconnect the battery cables f rom the
battery, disconnect the wire harness connector
from both Toro Electronic Controllers and discon-
nect the terminal connector from the alternator.
These steps will prevent damage to the machine
electrical system.
CAN--bus Communications
The two (2) TEC controllers (TEC--5001 and
TEC--5002) used on the Groundsmaster 4100-- D and
4110--D communicate with each other on a CAN--bus
system.Usingthissystemallowsthetractionunittofully
integrate all the different electrical components of the
machineandbringthemtogetherasone.TheCAN--bus
system reduces the number of electrical components
and connections used on the machine and allows the
number of wires in the wire harness to be significantly
reduced.
CAN identifies the Controller Area Network that is used
betweenthecontrollers on the Groundsmaster. Two (2)
specially designed, twisted cables form the bus. These
wires provide the data pathways between the control-
lers (TEC--5001 and TEC--5002) used on the machine.
Theengineeringtermforthesetwo(2)cablesareCAN--
highandCAN-- low.Attheendsofthetwistedpairofbus
cables are 120 ohm termination resistors.
Each of the components that is controlled by the CAN--
buslinkonlyneedsfour(4)w irestooperateandcommu-
nicate to the system: CAN--high, CAN-- low, B+ (power)
and ground.
Electrical Drawings
The electrical schematic and wire harness drawings for
the Groundsmaster 4100--D and 4110--D are located in
Chapter 10 -- Foldout Drawings.
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