51
4-9-2. STATOR ASSEMBLY
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.
5-15 (2) to (3)
5-15
(3) to (1)
5-15
(1) to (2)
ResultTest Points
5-15 (2) to (3)
5-15
(3) to (1)
5-15
(1) to (2)
ResultTest Points
HALL SENSOR
(1)
(3)
WINDINGS
(2)
HALL SENSOR
(1)
(3)
WINDINGS
(2)
Circuit in the MAIN PWB / Wiring Diagram
Wiring
diagram
Result
(Windings)
Test
points
(Windings)
Function
MAIN CONTROLLER
12 12
3
4512
3
45
6
12
3
2
3
84
7
84
7
51
2
12
3
12
3
45
6 76
12
3
4512
3
45
12
3
45
6 7
6
65
4
3
2
CLUTCH
MOTOR
1
2
3
123 546
413 2
MOTOR
HALL
SENSOR
SUB
NA1YL3
CN8
CN6
YL2
CN8CN6
NA5
VL
/
WH
BL
BK BN RD BK BN BN RD GN YL OR OR OR WH VL VLBL GN
RD RD BL BL BL
WH
WH BN
BL
BN
WH
BN
BL
8
YL YL
RD
BL
YL
8