17
29
29. Door and door lock
438 9145-61/06
04.10
Service
Manual
X93: Input from level guard
If the input indicates “Water in drum” when the
door is not locked, the door cannot be locked.
The LEDs then show the error code ● ● ❍.
Input voltage Function
5 V DC: Water in drum (level guard open)
0 V: Drum empty (level guard closed)
X94: Input from motor control
Only when door is open
If the input indicates “Motor operating”, the door
cannot be locked. The LEDs then show the error
code ❍ ● ●.
Only when door is locked
The input signal from X94 is compared with the
signal from the rotation sensor B3 (input X95).
If the motor is operating, but the rotation sensor
does not provide a signal, error code ● ❍ ❍ is
shown.
If the rotation sensor indicates motor operation
when the motor is not operating, error code
❍ ● ❍ is shown.
Input voltage Function
5 V DC: Motor not operating (input open)
0 V: Motor operating (input closed)
Fig.
21
Fig.
20
5928
5932
20
21
Door lock control A31
X90
X91
1
2
1
2
200-
240 V
Voltage
supply to A1
Level guard
B2
Motor control U1
1
2
12
1
3
X93
X94
X92
12
X31
Programme unit A1
13
X304
2
Tacho-
signal
X96 X94 X95
X97X93
X92
X91
X90
1
1
1
1
1
1
1
1
IC6
(K2) (K1)
X90
X91
X92
X93
X94