Control System 27Service Manual – Focus II / Scrubtec R6 Rider Autoscrubber
Main Machine Controller Sample Voltage Measurements at the J2 Connector
Pin # Name V-On V-Off Ref. Comments
J2-1 B- 0.06 0 B- Voltage drop should remain low for all functions
J2-2 B- 0.06 0 B- Voltage drop should remain low for all functions
J2-3 Ch Comm Data 0.8 B-
Communication channel with the S.P.E. battery charger. The voltage will
uctuate as the data stream changes content.
J2-4 Sp Pot Out † N/A B-
Resistive functions from an on-board electronically controlled resistor
circuit. These values are used by the Wheel Drive controller.
† 4Bar = 4.5, 3Bar = 3.4, 2Bar = 2.8, 1Bar = 2.3
J2-5 Sp Pot Lo 0.42 N/A B-
J2-6 Sp Pot Hi 4.54 N/A B-
J2-7 B- 0.06 0 B- Voltage drop should remain low for all functions
J2-8 B- 0.06 0 B- Voltage drop should remain low for all functions
J2-9
1Vac Amps 0.12
0.0 B-
Input for the vacuum motor amperage. Uses voltage drop across the
ground wire to determine the amperage. Approximately 4.1 mV per amp.
2Vac Amps 0.23
J2-10 Brush Amps 0.126‡ 0.0 J1-5
Input for the brush motor amperage. Uses voltage drop across
the ground wire to determine the amperage. (‡ 3 motors, no load)
Approximately 2.3 to 3.4 mV per amp.
J2-11 Deck Pos 2 0 4.94
Scrub deck position switches inside actuator. Close (0 volts) when deck
lowers to each position. Open (5 volts) when raised.
J2-12 Deck Pos 1 0 4.94
Main Machine Controller Sample Voltage Measurements at the J3 Connector
Pin # Name V-On V-Off Ref. Comments
J3-1 B+ 25.6 25.6 B-
J3-2 B- 0.06 0 B- Voltage drop should remain low for all functions
J3-3 Rev Out 23.8 0 B- Signal to the drive controller to indicate that reverse is active.
J3-4 Seat Sw 25.1 0 B-
Input from the mechanical switch under the seat (also in series with
E-Stop switch)
J3-5 Rev In 1.6 25.1 B- Input from drive controller to signal machine in motion in reverse
J3-6 Motion In 0.25 23.1 B- Input from drive controller to signal machine in motion either direction
J3-7 Drv Status Data 1.2 B- Input from the drive controller for status. (Sequence of 24V pulses)
J3-8 B+ 25.6 25.6 B-
J3-9 Horn- Var Freq 13.2 B-
Horn+ comes from 15 V voltage regulator. Horn- is switched to 0V at
high frequency PWM.
J3-10 Horn+ 14.9 14.9 B-
J3-11 Solution Sol 0.21 25.1 B- Low speed PWM control of the solution solenoid.
J3-12 Vac Cont 0.1↑5.0 25.1 B-
PWM control of the vacuum motor contactor. The signal starts at full duty
cycle to pull the contacts closed, and then reduces the duty cycle to hold
them closed to minimize the load on the coil.
J3-13 Brush Cont 0.1↑5.0 25.1 B-
PWM control of the brush motor contactor. The signal starts at full duty
cycle to pull the contacts closed, and then reduces the duty cycle to hold
them closed to minimize the load on the coil.
J3-14 Key Switch 25.1 0 B-
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