Electrolux SM 554 Wartungshandbuch PDF herunterladen (Seite 77)

Service

Manual

9406

X90:1

X90:2

X91:1 X91:2

X92:2

X92:3

X72:7 X72:4

L1 N

X93:3

X95:2X95:1X93:2

X193:1

X193:2

FLE MP FC (Machines with frequency controlled motor)

Description

The rotation guard checks that the machine is completely at a standstill before the

door can be opened. When the drum has been at a standstill for approx. two seconds

the solenoid in the door lock is deactivated and the lock can be opened (provided that

the machine has been emptied of water and the programmer has reset). The rotation

guard also checks that the drum is revolving when the wash or extraction relays are

operating.

The rotation guard consists of a circuit board in the automatic control unit and a

sensor in a holder on the machine rear. There is a magnet on two of the spokes of the

pulley. Each time a magnet passes the sensor, a contact closes inside the sensor and

it relays a pulse to the rotation guard.

When the machine is at a standstill the rotation guard relays K1 and K2 are closed,

which means that the delay unit and the FL-MP receive confirmation that the drum is

not moving, i.e. the rotation guard and the FL-MP allow door opening.

31. Speed Guard

2436

2019

Fuse F1

X91

X92 X93

X94

X90

LED

X95

X96

X99

To control

circuits

This circuit is not used in FLE MP

Fig.

Logic section

Pulses from B41: K1 and K2 change

immediately.

No pulses from B41: K1 and K2 operate after

approx. 2 sec

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 90 91

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