Method of controlling a pump and motor

摘要

Embodiments of the invention provide a variable frequency drive system (10) and a method of controlling a pump (12) driven by a motor (11) with the pump (12) in fluid communication with a fluid system. The drive system and method can provide one or more of the following: a sleep mode, pipe break detection, a line fill mode, an automatic start mode, dry run protection, an electromagnetic interference filter compatible with a ground fault circuit interrupter, two-wire and three-wire and three-phase motor compatibility, a simple start-up process, automatic password protection, a pump out mode, digital input/output terminals, and removable input and output power terminal blocks.