Can Bis Communications - Toro Workman GTX Electric & Lithium Service Manual

CAN bus Communications
The machine controllers communicate with each other
on a Controller Area Network (CAN) bus system. Using
this network allows full integration of all the different
electrical components of the machine, allowing them to
operate together as one. The CAN 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.
The display (T), lithium--ion battery controller also called
as BMS -- Battery Management System (SC1) and trac-
tion controller (SC2) are on the CAN bus. Additional con-
trollers may be added to the CAN bus in the future
through the expansion port connector and/or the
telematics connector.
Each of the components that is controlled by the CAN
bus link only needs four (4) wires to operate and commu-
nicate to the system: CAN High, CAN Low, power and
ground. The key switch needs to be in the RUN or
START position for the components on the network to be
activated.
Two specially designed, twisted wires form the CAN
bus. These wires provide the data pathways between
the components on the network. The engineering term
for these cables are CAN High and CAN Low. The CAN
bus wires are red/white (CAN--High) and black/white
(CAN Low). At end of the CAN bus is a 120 ohm termina-
tion resistor; refer to CAN bus Terminator Resistor.
Electrical System
3
1. DIAG connector
2. Cover
The Toro DIAG electronic control diagnostics service
system is available to Authorized Toro Distributors to
support machine fault diagnosis and maintenance ser-
vices of the machine electrical control devices. The Toro
DIAG connector is located inside the dash.
Page 3B - - 8
1 2
Figure 12
3. Display
Workman GTX Electric Lithium