Standard Control Module (Scm); Standard Control Module (Scm) - Toro Groundsmaster 3500 30807 Service Manual

Standard Control Module (SCM)

Groundsmaster 3500 machines are equipped with a
Standard Control Module to monitor and control electri-
cal components required for safe operation. This Mod-
ule is attached to the back of the instrument panel.
Inputs from the neutral, parking brake, PTO, ignition,
seat, and high temperature switches are monitored by
the Module. Output to the PTO (deck drive solenoid), en-
gine starter motor, fuel pump, and engine stop solenoid
(diesel engines) or the power relay (gasoline engine)
are controlled based on the inputs received by the Mod-
ule.
The Standard Control Module does not connect to an
external computer or hand held device, can not be re−
programmed, and does not record intermittent fault
data.
The Standard Control Module can be used to check op-
eration of machine switches by monitoring the LEDs of
the module. If a Module LED does not illuminate (e.g. the
in seat input LED does not illuminate with the seat occu-
pied and the ignition switch in the run position), testing
of the switch and circuit wiring would be required.
Refer to the Traction Unit Operator's Manual for addi-
tional Standard Control Module information.
Control Module Inputs (Fig. 9)
The Power input LED should be illuminated when the
ignition key switch is in the RUN or START position.
The Start input LED should be illuminated when the igni-
tion key switch is in the START position.
The Neutral input LED should be illuminated when the
traction pedal is in the neutral position.
The Parking Brake Off input LED should be illuminated
when the parking brake is not engaged.
The PTO Switch input LED should be illuminated when
the PTO switch is engaged.
The In Seat input LED should be illuminated when the
operator is sitting in the seat.
Diesel Engines Only − The Over Temperature Shut-
down input LED should be illuminated when the engine
coolant temperature exceeds 230F(110C) causing the
high temperature shutdown switch to close. The Over
Temperature Warning input LED is not used with diesel
powered units.
Gasoline Engines Only − The Over Temperature Warn-
ing input LED should be illuminated when the engine
Electrical System
coolant temperature exceeds 230F(110C) causing the
high temperature warning switch to close. The Over
Temperature Shutdown input LED is not used with gas-
oline powered units.
The Backlap input LED is not used on the Groundsmas-
ter 3500.
Control Module Outputs (Fig. 9)
The Start output LED should be illuminated when the
ignition key switch is in the START position with the trac-
tion pedal in neutral, the PTO switch off and either the
seat occupied or parking brake engaged.
The Run output LED should be illuminated when the
ignition key switch is in the ON position and inputs from
the neutral, parking brake, PTO, seat and over temper-
ature switches indicate safe engine operation (e.g. seat
occupied and parking brake disengaged when traction
pedal is depressed).
The PTO output LED should be illuminated when the
ignition key switch is in the ON position, the parking
brake is disengaged, the operator is sitting in the seat,
and the PTO switch is pulled out.
NOTE: For gasoline powered units, if the Over Temper-
ature Warning input LED is illuminated, PTO output LED
will not be illuminated and PTO will not be engaged re-
gardless of PTO, ignition, parking brake, or in seat
switch position.
12
10
11
9
8
7
6
1. Power input LED
2. Start input LED
3. Engine run output LED
4. Start output LED
5. PTO output LED
6. Neutral input LED
7. Park brake off input LED
8. PTO switch input LED
Page 6 − 12
ASSY PN 106−9277 DECAL PN 106−9290
Figure 9
9. In seat input LED
10. High temp warning input
LED (Gas Engine Only)
11. High temp shutdown
input LED (Diesel Engine
Only)
12. Backlap input (not used)
Groundsmaster 3500
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4
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