Direct Drive Motor - LG WM2496*M Series Training Manual

DIRECT DRIVE MOTOR

The motor is a direct-drive,
brushless, DC motor. It is attached
to the drum via a splined shaft,
eliminating belts, pulleys,
transmissions, and the inherent
problems associated with them. The
rotor is attached to the shaft by one
large bolt.
The DC motor can be driven from
stopped to maximum speed in
infinite steps in either direction.
There are 36 poles on the stator and
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.
A Hall Effect sensor determines the
speed and direction of the motor.
It also can read that the load is off
balance when the drum speed
fluctuates, eliminating the ball
sensor found on previous models.
Before going to this trouble, check
the connector on the main board. It
is the red connector closest to the
heat sink. Pull the connector off and
verify the board is receiving a signal
from the sensor.
WM2496H*M Page 47 of 58 TRAINING MANUAL