Sc2: Traction Controller - Toro Workman GTX Electric & Lithium Service Manual

SC2: Traction Controller

The SC2: traction controller is secured to the seat base
rear panel (Fig. 14). The controller uses inputs from sev-
eral vehicle components to accurately control vehicle
speed, direction (forward and reverse) and regenerative
braking. Controller inputs include key switch, direction
selector switch (forward/reverse), accelerator pedal,
mode switch, traction motor thermistor (temperature),
traction motor encoder (speed sensor) and parking
brake. A single wire harness connection and five (5)
cables are used to connect the controller to the vehicle
electrical system. The traction controller is also connec-
ted to the CAN bus.
A fuse that is rated at 425 amperes continuous is at-
tached to the controller and protects the 48VDC vehicle
power supply circuit. If this fuse has failed, vehicle oper-
ation will not occur.
Refer to SC2: traction controller testing for more inform-
ation.
IMPORTANT: Do not open the traction controller.
There are no serviceable parts on or in the control-
ler. If you open the controller, you will void the war-
ranty. The controller
tamper- -alerting devices.
Electrical System
is protected by
Page 3B - - 10
Note: If the SC2: Traction Controller is replaced for
any reason, the machine software must be updated;
contact an Authorized Toro Distributor for assistance.
1
Figure 14
1. SC2: Traction controller
Workman GTX Electric Lithium