Functions Performed By The Mother Board; Memories Contained In The Electronic Control System; Power Failures - Electrolux DIVA 60 cm Service Manual

6.1.1

Functions performed by the mother board

SENSORS
Acquires cycle programming and commands through the input and output boards.
Powers all the electrical components (solenoids, wash pump, detergent/rinse-aid dispenser, drain
pump, heating element, fan motor)
Controls the temperature of the wash water using a signal from an NTC sensor, and controls the
speed of the wash pump using a signal from a tachometric generator.
Monitors the pressure switches and the rinse-aid / salt sensors
6.1.2

Memories contained in the electronic control system

External serial
port
ROM
Asynchronous
The main board is equipped with an EEPROM that is external to the microprocessor and which is
used to store data on machine configuration, programming for the cycle, and status of the cycle in case of a
power failure or alarm.
The configuration data is programmed at the factory by a computer with a DAAS interface. This
data determines the operation of the appliance (number and types of programmes, options, LEDs, etc.).
6.1.3

Power failures

The "Power Failure" function stores information on the status of the cycle during a power failure so
that when the power is restored, the cycle can resume from the point at which it was interrupted. If the
appliance is in the drying phase when a power failure occurs, the cycle will end after the regeneration
phase.
INPUT AND OUTPUT BOARDS
LEDs Buttons
(Buzzer)
MAIN BOARD
μP
Internal serial
RAM
Synchronous
Display
μP
EEPROM
port
21
ELECTRIC
LOADS
Power failure and
machine status
Configuration of
appliance
Description for the
cycle