Electronics; Diagnostics; Sleep Mode; Brownout Recovery - Fisher & Paykel AquaSmart WL26CW1 Product Information

Electronics

The AquaSmart™ electronics are made up of two primary parts – the motor controller and the
display module. Both contain thousands of lines of electronic code, programmed following years
of testing and development, and designed to deal effectively with any situation.
Motor Controller
The AquaSmart™ Motor Controller is very similar to SmartDrive. Primarily it controls the
electronic switching hardware to regulate the phase currents in the DC motor. The
microprocessor cannot only accurately control the velocity of the motor but also the
acceleration. Accurate control is necessary in order to perform all the different wash processes
available in AquaSmart™. The motor controller module also performs a wide variety of other
tasks ranging from switching water valves on and off, to precisely sensing basket float.
Display
The Display module provides the link between the washer electronics and the user. The display
microprocessor interprets the information provided by the user (e.g. cycle selection) and
communicates this information to the motor controller. Feedback on selection is given to the
.
user via the display screen, and other audible and tactile feedback including lights and beeps

Diagnostics

AquaSmart™ has extensive self-diagnostic ability, due to the microprocessor control, electronic
drive, DC motor technology and intelligent software. If a service call is needed, the service
person can extract a lot of information from the machine that will help to quickly determine the
cause of the problem. At the time of a fault, the machine saves information such as cycle
position, motor speed, water level, fault code, and cycle count. If the machine faults it will
indicate the fault by displaying a message on the display screen, meaning the service person
can diagnose the problem before they even arrive, making servicing quick and easy.

Sleep Mode

Fifteen minutes after a cycle is finished the product goes to "sleep" by shutting down the power
supply. This reduces the stand-by power of the product to just over 1 Watt.

Brownout Recovery

If the mains power is temporarily removed and reconnected, AquaSmart™ will simply carry on
where it left off in the cycle.