Pentair Flow Technologies, LLC

Sta-rite Industries Inc.

Danfoss Drives A/s

Danfoss Low Power Drives

Danfoss Customised Power Electronics

Gary Thomas Baase, Ii

William James Genaw

Melissa Drechsel Kidd

Micheal Pasche

Lars Hoffmann Berthelsen

Rasmus Fink

Martin Skov Holm

Michael Pasche

Florin Lungeanu

Torben Damsgaard

Robert Ehmsen

A method is provided for controlling a pump driven by a motor with the motor connected to a drive. The method can include determining a parameter value related to a fault condition, comparing the parameter value to a threshold value, and adjusting a speed control of the drive based on the comparison of the determined parameter to the threshold value.

Method of controlling a pump and motor

The invention relates to a method () for starting an electric single-phase induction motor (), wherein during a start-up interval of the start-up cycle for starting said electric motor (), the frequency (f) of the electric current for driving said electric motor () is set to a first frequency (f), and later to the operating frequency (f) of the electric motor (), wherein the first frequency (f) is higher than the operating frequency (f).

Method for starting a single-phase induction motor

A variable frequency drive system and a method of controlling a pump driven by a motor with the pump in fluid communication with a fluid system is provided. The method includes monitoring a pressure in the fluid system, monitoring and adjusting an operating frequency of the motor to maintain the pressure at a pressure set point, and, based on the monitored operating frequency, causing the pump to temporarily boost the pressure in the fluid system to a temporary boost set point for a first time period. The method also includes determining whether the temporarily boosted pressure in the fluid system stays above the pressure set point for a second time period and causing the pump to enter a sleep mode when the temporarily boosted pressure stays above the pressure set point through the second time period.

Embodiments of the invention provide a variable frequency drive system and a method of controlling a pump driven by a motor with the pump 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.

Safety system and method for pump and motor

Embodiments of the invention provide a variable frequency drive system and a method of detecting a ground in a system having a pump driven by a motor. 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.

System and method for motor drive control pad and drive terminals

Growing community of inventors

Kenosha, WI, United States of America

Gary Thomas Baase, Ii