Stator Assembly - Kenmore 796.40019 Service Manual

9-3. STATOR ASSEMBLY

Circuit
diagram
Function
The DD motor can be driven from stopped to maximum speed in infinite steps in
either direction. There are 36 poles on the stator; 12 permanent magnets spaced
around the rotor. There are no brushes to wear out. Unlike a more traditional
brushless motor, the rotor surrounds the stator rather than being attached to it.
Test points
(Windings)
Result
(Windings)
Circuit in the MAIN PWB
MAIN PWB
Ha
Hb
MICOM
u v
IPM
HALL SENSOR
Test Points
(1) to (2)
(2) to (3)
(3) to (1)
12V
WH
1 1
2 2
RD
3 3
BL
4 4
GY
NA1NA
w
YL
w
3 3
BL
v
2 2
RD
u
1 1
RD4 RD
Result
5-15 Ω
5-15 Ω
5-15 Ω
41
5 5
WH
4 4 4 4
GND
3 3 3 3
RD
2 2 2
2
BL
1 1 1 1
GY
YL
w
3 3 3 3
BL u
2
2 2 2
v
RD
1
1 1 1
WINDINGS
(3)
(1)
(2)
Hb
Ha