Control System; Functional Description; Overview; A2 Control Board Assembly - Nilfisk-Advance SC6500 40C Service Manual

Service Manual – SC6500
™

Control System

Functional Description

Overview

The control system consists of the A2 Control Board Assembly, the A3 Switch/Display Panel Assembly and
associated sensors and circuitry.

A2 Control Board Assembly

The
A2 Control Board Assembly
main controller, communicates with the
and the A3 Switch/Display Panel Assembly to
Controller
coordinate the operation of the various machine systems.
The
A2 Control Board Assembly
behind the electrical panel cover assembly to the
Mount
left of the Operator seat.
One primary function of the
to position the scrub brushes relative to the floor surface
using a lift actuator motor. The
continuously monitors the brush motor current draw to
maintain the desired scrub pressure on the floor.
• If the brush motor current drops below the desired
range, the
A2 Control Board Assembly
lift actuator motor to move the scrub deck downward
until the brush motor current draw is within the
correct range for the scrub pressure selected.
• If the brush motor current rises above the desired
range, the
A2 Control Board Assembly
lift actuator motor to lift the scrub deck upward until
the brush motor current draw is again within the
correct range for the scrub pressure selected.
Note: Refer to the
manual for a complete explanation of
scrub deck operation.
A secondary function of the
corresponding error code on the display panel, or store it in the control board's recall memory mode. The
error codes are used to help service technicians determine the fault and to guide in repairing a specific
system malfunction quickly.
Note: See the
The
A2 Control Board Assembly
functions. See the
Main Control Programming Options
, sometimes referred to the
Curtis A1 Speed
is fastened to the
Electrical
A2 Control Board Assembly
A2 Control Board Assembly
switches on the
switches on the
section in this
Scrub System
A2 Control Board Assembly
section for further information.
Troubleshooting
also allows you to change program settings for a set of specific machine
is
is to detect any system failures and display the
section in this manual for further information.
Control System
A2 Control Board
Assembly
Electrical
Mount
Curtis A1
Speed
Controller
33