Electrolux SM 554 Instrukcja Obsługi Pobierz pdf (Strona 21)

Service

Manual

Edition

Type

12. Function Sequences

17 9108

Page

Door lock

When the door has been locked with the handle the microswitch S3 (6) is

activated in the locking unit. Turning programmer knob to I closes switch

S30 (7), delay unit D1 (11) is receiving power and door lock coil Y80 (12)

locks the door. Switch S4 (8) then closes, so that the machine can start.

To prevent the door being opened immediately after a extraction (roll-out

time may be 2-3 minutes), while at the same time limiting the delay time

once washing has finished to approx. 35 seconds, the delay unit is fitted

with a time relay and works as follows:

• Time relay motor K62 (11) is energised even if machine switch S1 (3)

(13) is at OFF. This means the time relay is normally in position 12-13

from the start and when the machine runs at wash or distribution speed.

In this position, one of the capacitors in the delay unit (11) is cut out, at

the same time as the 39 kΩ resistor is short circuit. The door can now

be opened approx. 35 seconds after a power failure or when the

programmer knob is turned to 0 and breaking S30 (7).

• Extraction activates relay K9 or K10 and the power to time relay motor

K62 is cut by K9:51-52 (9) or K10:51-52 (10). The time relay contact

switches to position 11-12, and the delay circuit now keeps the door

closed about 3-3.5 minutes at a power failure or the programmer knob is

turned to 0. After extraction, time relay K62 is re-energised. At the end

of the time set on the relay (2 minutes for 120 litre machines and 3

minutes for 220 litre machines), the time relay contact resets to position

12-13.

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Electrolux SM 554 Instrukcja Obsługi Strona 21