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Greensmaster eFlex 1800/2100 Page 4 -- 3 Electrical System
CAN--bus Communications
The TEC controller communicates with other electrical
components (lithium battery pack, electric motor and In-
foCenter display) on a CAN--bus communication sys-
tem. The CAN--bus system reduces the number of
electrical components and connections used on the ma-
chine and allowsthe number of wires inthe wire harness
to be reduced.
CAN identifies the Controller Area Network that is used
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 the twisted pair of bus wires are 120 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 e nds
of the bus wires are required for proper electrical
system operation.
Lithium Battery Pack Connection
CAUTION
Before servicing the machine, disconnect the
the machine from the lithium battery pack. This
will prevent unexpected machine operation.
To prevent unexpected machine operation during ser-
vice, disconnect the machine from the lithium battery
pack as the first step in any repair (Fig. 2). Once the bat-
tery pack has been disconnected, the electrical system
on the machine can be safely worked on. Take care dur-
ing repairs,however, to not allow tools or vehicle compo-
nents to complete the battery circuit that was opened
with the cable removal.
Connect the machine wire harness to the battery pack
as the last step in any repair.
WARNING
The eFlex lithium battery pack contains high
voltage which could burn or electrocute you.
Never attempt to open the battery pack.
Do not place anything in the connector on
the battery pack other than the wire
harness connector that came with the
product.
Use extreme care when handling a battery
pack with a cracked case.
Only use the charger designed for the
battery pack.
1. Lithium battery pack
2. Battery connector
3. Machine connector
Figure 2
3
2
1
Electrical
System