Control System; Functional Description; Wiring Diagram - Nilfisk-ALTO SCRUBTEC R 466 Service Manual

Service Manual – SCRUBTEC R466 ... FOCUS II Micro Rider

Control System

Functional Description

The architecture of the electronic system controlling the electrical machine utilities consists of a function
electronic board (EB1), and a display electronic board (EB2) which is connected to the dashboard (EB3) - the
main user interface
The function electronic board (EB1) manages all the utilities
It drives directly the following accessories:
− Drive system motor with electromagnetic parking brake
− Vacuum system motor
− Deck actuator
− Squeegee actuator
− Solution flow solenoid valve
− Detergent pump
− Buzzer
It drives the brush deck motors by means of the electromagnetic switch
The display electronic board (EB2) manages all the input signals (push-buttons) and the output signals (LED)
from dashboard (EB3) to which it is connected by 2 flat cables.
There is also a 3-figure display on the display electronic board (EB2), which is mainly used to display the hour
counter, the solution tank level, and for any alarms (see below). There are also 2 microswitches activated by
the levers under the steering wheel
The display electronic board (EB2) sends all the input and output signals of these components to the function
electronic board (EB1) using 2-wire 2-way serial communications protocol
The system also has an on-board battery charger which also communicates with the function electronic board
(EB1) using propriety serial protocol, so the operator can see the operating state (charging phase) on the same
user interface of the dashboard (EB3)

Wiring Diagram

Dashboard instrument electronic board (EB3)
Display electronic board (EB2)
Function electronic board (EB1)
Dashboard power supply +
Dashboard serial +
Dashboard serial -
Dashboard power supply -
Control System 21
P100683