Toro Greensmaster TriFlex 3400 - General Information; System Operation; Operators Manual; CAN-Bus Communications

Greensmaster 3300/3400 Page 6 -- 3 Electrical System
General Information
Operator’s Manual
The Operator’s Manual provides information r egarding
the operation, general maintenance and maintenance
intervals for your Greensmaster machine. Refer to that
publicationforadditionalinformationwhenservicingthe
machine.
Electrical Drawings
The electricalschematic and wireharness drawings for
Greensmaster TriFlex 3300 and 3400 machines are lo-
cated in Chapter 10 -- Foldout Drawings.
Toro Electronic Controller (TEC)
Greensmaster TriFlex 3300 and 3400 machines use a
Toro Electronic Controller (TEC) to manage machine
electrical functions. The controller is microprocessor
controlledthatsensesthecondition ofvarious switches
(inputs)anddirects electricalpower tocontrol appropri-
ate machine functions (outputs) based on the inputs.
The status of inputs to the controller a s well as outputs
fromthecontrollercanbemonitoredwiththeDiagnostic
Display (see Special Tools in this chapter).
IMPORTANT: Beforeperforminganyweldingonthe
machine, disconnect the battery cables from the
battery, disconnect the wire harness connector
from the Toro Electronic Controller(s) and discon-
nect the terminal connector from the alternator.
These steps will prevent damage to the machine
electrical system.
Figure 1
1
2
1. TEC controller 2. Harness connector
CAN--bus Communications
The TEC controller communicates with other electrical
components on a CAN--bus communication system.
The CAN--bus system reduces the number of electrical
componentsandconnections usedonthemachine and
allows the number ofwires in the wire harness to bere-
duced.
CAN identifies the Controller Area Network thatisused
on the Greensmaster. Two (2) twisted wires form the
bus. These wires provide the data pathways between
machine components. The engineering term for these
two (2) wires are CAN--high and CAN--low. At the ends
of thetwisted pair ofbus wires are120 ohm termination
resistors.
Each of the components that is controlled by the CAN--
buslinkonlyneedsfour(4)wirestooperateandcommu-
nicate to the system: CAN-- high, CAN--low, B+ (power)
and ground.
IMPORTANT: The termination resistors at the ends
of the bus wires are required for proper electrical
system operation.
Electrical
System