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3.4.7
Motor
The motor (15) is powered by the electronic control via a triac; the
rotation inversions are effected by the commutation of two relays.
14
Electronic control
M
Rotor
S
Stator
P
Moto-protection
T
Tachometric generator
3.4.8
Motor safety
§
Motor power Triac short-circuited
If the Triac which powers the motor is short-circuited, the electronic control (14) disconnects the motor by
switching the relays. After 30 seconds, the power to the motor is restored. If after three attempts, the fault
persists (2 attempts in spin cycles), the motor is definitively disconnected and the timer advances to the
STOP position.
§
Tachometric generator or faulty motor
If no signal is received from the tachometric generator (tachometric generator or motor faulty), the electronic
control (14) disconnects the motor for 30 seconds, after which the motor is switched on again.
If the fault persists, this sequence of attempts to power the motor is repeated every 30 seconds until the end
of the cycle.
3.4.9
Drain
The drain pump is powered through the timer contact N4.3-H3.1 and the drain pump lasts till the first level
pressure switch advances to the "empty" position.
Therefore the timer advances to the subsequent spin phase or a prefixed drain time is added.
st
5
1
level pressure switch
10
drain pump
11
timer motor
14
electronic control
st
L1
1
level pressure switch control
§
Drain pump safety
In case the drain pump is faulty, after the maximum time of
3 minutes (timeout) the timer advances to subsequent
position even if the pressure switch in "full" position and the
cycle continues as programmed.
2001.08 eb
25
599 34 85-05
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