Workman GTX Electric Lithium
Page 3B -- 10
Electrical System
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-
tedtotheCANbus.
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 m ore 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 is protected by
tamper--alerting devices.
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. SC2: Traction controller
Figure 14
1
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