CONTROL ALGORITHM OF VARIABLE SPEED PUMPING SYSTEM

摘要

ABST'RAC(-T A pumping system (10) for at east one aquatic apphcaton, induding a pump (16), a motor (24) coupled to the pump (16) and a controller (30) in communication with the motor (24) The contrcler30) determines a current flow rate based on a n input power to the motor (24) whether the ourent flow rate is above a piling flow value in order to determine whether the pumping system is primed and indicating a prming alarm if the pumping system (10) is not primed before reaching a maximum priming time allotment; C)C-')