Nilfisk-ALTO Scrubtec R 6-71C 28C Service Manual page 27

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