Toro Greensmaster eTriFlex 3360 Service Manual page 112

48 VDC System Components (continued)
Electrical System: Electrical System Operation
Control for the components in the 48 VDC system is handled by the front
traction motor controllers (SC5: Traction 1 and SC6: Traction 2), a controller
in the optional rear traction motor (T5: Traction 3), a controller in the steering
motor (SC7: Steering), a controller in each lift/lower actuator (SC1: Lift/Lower
1, SC2: Lift/Lower 2, SC3: Lift/Lower 3), a controller in each cutting unit motor
(T2: Cutting Unit 1, T2: Cutting Unit 2, T3: Cutting Unit 3), along with direction
from the T1: Primary controller via the CAN bus system. Since the T1: Primary
controller (a 12 VDC component) sends and receives information with the
starter/generator, traction motors, and the remaining 48 VDC components, the
CAN bus needs to communicate with both 12 VDC and 48 VDC systems. The
CAN bus isolation module is included in the system to allow communication
between the different voltage controllers while keeping the two electrical systems
isolated. Also, the location ID module exists to identify the location of the three
cutting unit controllers and the optional rear traction motor controller. The ID
module enables machine operation features such as starting and stopping the
center cutting unit slightly later than the front cutting units.
The two front traction motors are brushless permanent magnet motors. The
motor controllers are separate from the motors and control each motor
individually (RH controller controls RH motor and LH controller controls LH
motor). The optional rear traction motor is a brushless, permanent magnet motor
with its own on-board controller. The InfoCenter Display can be used to monitor
the current draw for the traction motors during machine operation.
The steering motor is a brushless permanent magnet motor with its own on-board
controller and integrated planetary gear box. The InfoCenter Display can be
used to monitor the position of the steering motor during machine operation.
The three cutting unit lift/lower actuators are CAN controlled electric linear
actuators with an integrated controller, brushless motor, and brake. The
InfoCenter Display can be used to monitor the current draw for the lift/lower
actuators during machine operation.
The three cutting unit motors are identical brushless, permanent magnet motors
with an internal gear reduction feature. Each motor has its own on-board
controller. The InfoCenter Display can be used to monitor the speed and current
draw for the cutting unit motors during machine operation.
Page 5–8 Greensmaster® eTriFlex 3360 and 3370
19239SL Rev B