28
Rotation guard
The rotation guard checks that the drum is completely at a standstill before the
door can be opened. When the drum has been still for approx. 2 seconds the coil
in the door lock is activated and the lock can be opened (providing the water has
emptied and the programmer has reset). This guard also checks that the drum is
actually rotating when the wash or extraction relays are operating.
The rotation guard consists off a circuit board located in the automatic unit and a
pulse generator mounted in a holder on the rear of the machine. There is a magnet
on one of the spokes of the belt pulley. Each time this magnet passes the pulse
generator, a contact within the pulse generator closes and a pulse is sent to the
rotation guard.
Mechanical and electrical design
Fig.
46
46
2019
X95 X96
X90
X99
Fusee F1
LED
X91 X92 X93 X94