Electrolux W365H Service Manual page 80

21
Function
Front control unit
Programme unit
The programme unit consists of the following
Fig.
parts:
2
• CPU card A1
Fig.
The CPU card uses the various control
3
programmes in the card programme memory
to check the various functions of the washing
machine. The standard programmes are also
stored in the programme memory
(programme numbers 991 - 999) together
with any user-specified programmes.
• Display card A2
The display card communicates with the CPU
card A1 through a serial interface. It converts
data from the CPU card for display in the
character display.
The display card also detects which buttons
are pressed on the control panel.
• Card reader A3
Using the card reader and a memory card,
wash programmes can be copied from one
washing machine to another or between
washing machines and a computer. The card
reader is connected to the display card A2.
4
21. Control unit
A12
I/O card 2
A11
I/O card 1
A2 Display card
2
A1 CPU card
A3 Card reader
3
Buttons
Display card
Card
reader A3
CPU card
A1
Motor control
U1
Communication
Water valves
Drain valve
Heating
Service
Manual
5227
A2
I/O card 1
A11
card A21
Emergency
stop
Door lock
5228
438 9145-21/03
02.38