Nilfisk-Advance SC500 Service Manual

Control System 23Service Manual – SC500
Function Board (EB1) Alarm Codes (Continues)
Function electronic board alarms
Alarm on Function Board - FLASHING RED LED
Alarm code
--------------------------
Description
No.
ashes
on
board
Meaning Condition Effect
Service Suggestions
F2
-----------------------
BRUSH MOTOR
OVERLOAD
2 BRUSH motor
amperometric
protection.
The motor current is
greater than the value of
the parameter (see page
29 - 30) VS1
Brush motor
output stop.
Check the current draw of the brush motor.
It should remain below the value set in the
parameter “VS1” during operation.
F3
-----------------------
VACUUM
MOTOR
OVERLOAD
3 VACUUM
SYSTEM
amperometric
protection.
The current draw of the
vacuum motor is greater
than 30A for over 10
seconds.
Vacuum system
block.
1. Check for any debris in the vacuum
motor.
2. Check that the motor rotor turns freely.
3. Replace the vacuum motor if
necessary.
F4
-----------------------
DECK
ACTUATOR
FAILURE
4 DECK
ACTUATOR
overcurrent.
Current greater than 4A
detected for more than 1
second.
Brush function
block.
1. Check that there is no friction on
the brush deck linkage; lubricate if
necessary.
2. Check that the actuator and deck
travel is not blocked by mechanical
obstructions.
3. If the problem persists, replace the
actuator.
F5
-----------------------
HARDWARE
FAILURE
5 Short circuit on
the vacuum or
brush motor drive
MOSFET.
MOSFET short circuit. Function block.
1. Check that there are no short circuits in
the motor wiring.
2. Replace the board.
F6
-----------------------
PRESSURE
GAUGE
FAILURE
6 PRESSURE
GAUGE
FAILURE
(Not used)
- -
-
F7
-----------------------
OVERHEATING
7 Motor drive
section thermal
cut-out.
The heatsink on the
board has reached a
temperature of 194°F
(90°C).
Function block.
Check the vacuum and brush motor power
draw and that the openings of the electri-
cal compartment are not blocked.
F8
-----------------------
BRUSH MOTOR
FAILURE
8 Brush motor
output short
circuit.
I > 150A for 20µsec. Function block.
Check for short circuits in the wiring or
motor.
F9
-----------------------
VACUUM
MOTOR
FAILURE
9 Vacuum
motor output
overcurrent.
I > 150A for 20µsec. Function block.
Check for short circuits in the wiring or
motor.

Nilfisk-Advance SC500 Specifications

General

Brand	Nilfisk-Advance
Model	SC500
Category	Floor Machine
Language	English