SPEED CONTROL

摘要

A pumping system for moving water of a swimming pool includes a water pum p, an infinitely variable speed motor, and an arrangement for operating the motor. In one example, the pumping system includes a memory configured to st ore a plurality of retained speed values, an arrangement for providing a plu rality of retained speed values to the memory, and an arrangement for readin g a selected one of the plurality of retained speed values from the memory. In addition or alternatively, the pumping system includes a storage medium f or digitally storing a plurality of pre-established motor speed values and a n arrangement for receiving input from a user to select one of the pre-estab lished motor speeds. In addition or alternatively, the pumping system furthe r includes an arrangement for restarting operation of the motor at a previou sly selected speed value when power supplied to the motor is interrupted dur ing operation of the motor. A method for controlling the pumping system is a lso provided.