9
EEPROM
The EEPROM contains data of various types:
Ö Power failure, i.e. the information necessary to restart the appliance in the event of a power failure:
- Selected cycle and options
- Current phase and sub-phase
Ö Machine status, used to perform special cycles such as:
- Electrical test (used in the assembly line)
- Continuous cycles (used in the factory workshop)
Ö Machine configuration: the data contained in the EEPROM define the characteristics of the model and
are interpreted by the function software. The variables are as follows
- Type of appliance (front-loader, top-loader, compact)
- Type of door interlock (PTC or instantaneous)
- Anti-flooding safety device
- Transmission ratio between drum pulley and motor pulley
- Structure of the washing group
- Power supply frequency (50/60 Hz)
- Type of PCB (horizontal or vertical buttons)
- Detergent drawer (3 or 4 compartments)
- Final spin speed (600 – 1400 rpm)
Ö Identification of the appliance:
- Prod. N.
- ELC
- Serial number
Ö Configuration of the user interface:
- Programmes on main selector
- Function of secondary selector (if featured)
- Number and functions of buttons
- Functions of the LEDs
- Operation of the buzzer
Ö Washing cycle tables: Each washing cycle consists of a series of phases (steps); the steps are the basic
instructions which comprise the description of the cycle, which is common to all appliances having the
same characteristics:
- Water fill
- Motor movement
- Reset
- Heating
- Drain
- Spin
- “IF” conditions (options, temperatures etc.)
- .........
Ö Configuration of the washing cycle: for each family of appliances, certain parameters associated with the
washing programme are defined:
- Operational limits (voltage/frequency)
- Transmission ratios
- Parameters for control of the signal from the tachometric generator
- Parameters for half-range operation of the motor
- Structure of the washing group
- Control parameters for the FUCS anti-unbalancing system
- Water fill control algorithm
- Alarm control system
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