Nilfisk-Advance Advance SC250

24 - Electrical System 50
Service Manual – SC250, Scrubtec 334, MA 30
Wiring Diagram
LITHIUM BATTERY +
CONTROL SYSTEM
(BAT + BMS)
RH KNOB SENSOR (S1)
LH KNOB SENSOR (S2)
BRUSH
MOTOR (M1)
VACUUM
MOTOR (M2)
M2
36V
OUT1.+ Brush motor output
UI.8
UI.7
P1
P2
P3
LD7
LD8
LD9
LD6
LD5
LD4
LD3
LD2
LD1
R.2
R.3
R.1
L.2
L.3
L.1
UI.6
UI.5
UI.3
UI.2
UI.1
UI.4
BATTERY+
BATTERY-
OUT1.- Brush motor output
OUT2.+ Vacuum system motor output
OUT2.- Vacuum system motor output
Water pump output OUT3.+
EXT.11SPI CS3
EXT.6
EXT.4
EXT.3
EXT.2
EXT.1
SPI clock
SPI MOSI
SPI MISO
Power supply -
Power supply +
BUTTON.2
BUTTON.1Main controller power supply +
Start button input
Water pump output OUT3.-
C.2
C1.C2
C1.C1
C1.B2
C1.B1
C1.A1
C.1
C.3
BATT.1 Battery LED input - flashing
BATT.2 Battery LED input - timed
BATT.5 Battery LED input - data
BATT.3 CAN-H (a1)
BATT.4 CAN-L ( )
CHARGE.1 Battery charger input
CHARGE.2 Battery charger input
M1
PM
WATER
SENSOR (S3)
BATTERY CHARGER (CH)
WATER
PUMP (PM)
MAIN MACHINE CONTROLLER (EB1)
MAIN CONTROL
BOARD (EB2)
Figure 6