Siemens WT46W430FF Manual page 22

Design and function
3.11.3 BLDC motor
3.11.4 Design of BLDC motor
Graphic 12:BLDC motor design
1 Inverter module motor
2 BLDC motor/Electrical connection
3 Tensioning roller
3.11.5 Function
The motor is actuated via the inverter at a fixed speed. The inverter is therefore not
connected to the D-bus. The drum speed has been not been changed compared to
the other appliances (54 rpm).
2015-09-07 / DIS 113_58300000171499_ara_en_c
4 Tension spring
5 Holder
6 Motor shaft
Copyright by BSH Hausgeräte GmbH
When the motor is started a small jolt occurs to synchronize the coils. To limit the
motor current, a soft-start is also effected.
When off, the drum can only be rotated in small, jolting turns.
Reason: The generated induction current is shorted in the inverter.
Page 22 of 65