Toro Electronic Controller - Toro Greensmaster eFlex 1800 Service Manual

Toro Electronic Controller

Greensmaster eFlex machines use a Toro Electronic
Controller (TEC) to monitor the condition of various
switches (inputs) and then direct electrical power output
to allow certain machine functions. The controller is also
connected to the CAN--bus system for communications
with the electric motor and battery controllers. The TEC
controller is attached to the machine under the power
center cover (Fig. 54).
Inputs from the key switch, parking brake latch switch,
traction switch, reel engage switch, EZ turn switch, EZ
turn sensor, speed control potentiometer and lithium
battery pack status are all monitored by the TEC control-
ler.
TEC controller current output to the electric motor pre-
charge circuit, main contactor, 12 VDC outputs (Info-
Center display, EZ turn sensor and optional hour meter)
and 5 VDC output (speed control potentiometer) are
controlled based on the inputs received by the control-
ler.
The diagram in Figure 55 depicts the connection termi-
nal functions of the TEC controller. Two (2) wire harness
connectors attach to the controller with each of the con-
nectors including twelve (12) pins. The connector pins
are listed in the diagram.
The InfoCenter display should be used for checking in-
puts and outputs of the controller used on your Greens-
master (see InfoCenter Display section in this chapter).
The InfoCenter display can also be used to identify faults
and operator advisories that indicate operation issues
with the machine.
Because of the solid state circuitry built into the control-
ler, there is no method to test it directly. The controller
may be damaged if an attempt is made to test it with an
electrical test device, such as a digital multimeter.
Electrical System
1. TEC controller
IGNITION
SWITCH
INPUTS
DIGITAL
INPUTS
(OPEN/
CLOSED)
IGNITION
SWITCH
INPUT
ANALOG
INPUT
(VARIABLE)
Page 4 - - 42
1
Figure 54
2. Lithium battery pack
Figure 55
Greensmaster eFlex 1800/2100
2
OUTPUTS
CAN BUS
GROUND