Whirlpool WSE 2930 W, Manual

Page: 51 / 101

Functional characteristics
Dispenser stepper motor
According to product model a step motor can be attached to
the User Interface board.
Main Control board will communicate the action that step
motor has to perform (open, close).
The User Interface board generate the corresponding signal
to drive the motor in the required position.
To open or close completely the ice chute the step motor
needs to be driven for at least:
2.6 seconds: for close to open transition;
2.0 seconds: for open to close transition.
It is a low voltage 12Vdc stepper motor and it works as common stepper motor.
1. At every Power up it will perform an initialization (complete OPEN ad CLOSE movement).
2) At every paddle pressure it will open to allow the ice to be dispensed.
3) Releasing the paddle will cause the ice door to close.
There is a safety logic algorithm that allow to filter someone playing with paddle . I mean if you press and release
fastly the paddle the ice door will stay open. It will close 10 seconds later the last release. Of course that's
means every time you press the paddle the ice door will close 10 seconds later you release the paddle.
Note: If the power supply you remove the plug while it is closing or opening it will stop immediately because of no
power and you can have a half open ice door when appliance is not powered.