Patents by Inventor Scott Mayhew
Scott Mayhew has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7859217Abstract: A motor controller system comprises solid state switches for connection between a single phase to three phase static converter and motor terminals for controlling application of three phase power to the motor. Sensors sense power from the static converter. A control is connected to the sensors and the solid state switches for controlling operation of the solid state switches to run the motor. The controller includes a three phase detection scheme for preventing operation of the solid state switches in the absence of desired three phase power from the static converter. A motor start scheme disables the three phase detection scheme for a select time after a motor run signal.Type: GrantFiled: August 19, 2005Date of Patent: December 28, 2010Assignee: Siemens Industry, Inc.Inventor: Scott Mayhew
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Patent number: 7847505Abstract: An externally configurable soft starter system comprises a motor controller including solid state switches for controlling application of power to a motor. A control circuit controls operation of the solid state switches. The control circuit comprises a programmed processor for commanding operation of the solid state switches and a memory connected to the programmed processor storing parameters relating to operation of the solid state switches. An interface circuit is operatively connected to the programmed processor. An external device includes a memory for storing parameters relating to operation of the solid state switches and an interface for communication with the motor controller. A configuration program is operatively implemented in the programmed processor and the external configuration device for transferring a configuration database file between the controller memory and the external device memory.Type: GrantFiled: February 25, 2004Date of Patent: December 7, 2010Assignee: Siemens Industry, Inc.Inventors: Scott Mayhew, Scott Wakefield, Daniel Zuzuly
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Patent number: 7414377Abstract: A motor controller system comprises solid state switches for connection between an AC line and motor terminals for controlling application of AC power to the motor. A sensor senses AC line voltage. A control circuit controls operation of the solid state switches. The control circuit ramps switch current during a start mode and selectively holds switch current during the start mode if sensed voltage drops below a threshold amount.Type: GrantFiled: September 23, 2002Date of Patent: August 19, 2008Assignee: Siemens Energy & Automation, Inc.Inventors: Scott Mayhew, Scott Wakefield, Daniel Zuzuly
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Patent number: 7378816Abstract: A motor controller system includes solid state switches for connection between an AC line and motor terminals for controlling application of AC power to a motor. Voltage sensors sense voltage across each of the solid state switches and AC line voltage. A control circuit controls operation of the solid state switches. The control circuit compares the sensed voltages across each of the solid state switches with the AC line voltage in a non-run mode to determine if there is a shorted solid state switch.Type: GrantFiled: August 19, 2005Date of Patent: May 27, 2008Assignee: Siemens Energy & Automation, Inc.Inventor: Scott Mayhew
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Patent number: 7342371Abstract: A motor control system for detecting motor run condition comprises power switches for connection to an AC line for controlling application of AC power to the motor. An input receives a motor start command. A controller is connected to the input and controls operation of the switches responsive to a motor start command. The controller includes a counter and a timer and is operable to disable the power switches if number of starts during a select interval exceeds a first threshold and to disable the power switches if motor run time after a motor start command exceeds a second threshold.Type: GrantFiled: April 28, 2004Date of Patent: March 11, 2008Assignee: Siemens Energy & Automation, Inc.Inventors: Daniel Zuzuly, Scott Mayhew
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Patent number: 7308383Abstract: A soft starter system for monitoring and diagnosing electrical power system characteristics includes a motor controller including solid state switches for controlling application of power to a motor. A control circuit controls operation of the solid state switches. The control circuit includes a programmed processor for commanding operation of the solid state switches and for measuring electrical power system characteristics relating to operation of the solid state switches. A memory is connected to the programmed processor storing parameters of the measured electrical power system characteristics. An external monitoring and diagnostic device includes a memory for storing parameters of the measured electrical power system characteristics and an interface for communication with the motor controller.Type: GrantFiled: February 25, 2004Date of Patent: December 11, 2007Assignee: Siemens Energy & Automation, Inc.Inventors: Daniel Zuzuly, Scott Mayhew, Scott Wakefield
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Patent number: 7196491Abstract: A motor starter system comprises solid state switches for connection between an AC line and motor terminals for controlling application of AC power to the motor. A voltage sensor senses AC line voltage and the motor terminal voltage. Current sensors sense motor current. A control circuit controls operation of the solid state switches. The control circuit limits switch current during a start mode and detects a stall condition responsive to sensed AC line voltage and motor terminal voltage and selectively boosts motor current during the start mode if a stall condition is detected.Type: GrantFiled: February 2, 2004Date of Patent: March 27, 2007Assignee: Siemens Energy & Automation, Inc.Inventors: Scott Mayhew, Scott Wakefield, Daniel Zuzuly
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Patent number: 7130170Abstract: A motor starter system comprises solid state switches for connection to an AC line for controlling application of AC power to the motor. A fault contactor has contacts. A motor wiring circuit operatively connects the solid state switches and fault contactor contacts with motor winding terminals. A voltage sensor senses AC line voltage and motor terminal voltage. A control circuit controls operation of the solid state switches and the fault contactor, including de-energizing the fault contactor in an off mode where AC line power is not supplied to the motor winding terminals. The control circuit detects AC line voltage and motor terminal voltage in the off mode and detect an error condition responsive to sensed AC line voltage being substantially different from motor terminal voltage in the off mode.Type: GrantFiled: February 25, 2004Date of Patent: October 31, 2006Assignee: Siemens Energy & Automation, Inc.Inventors: Scott Wakefield, Daniel Zuzuly, Scott Mayhew
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Publication number: 20060049794Abstract: A motor controller system includes solid state switches for connection between an AC line and motor terminals for controlling application of AC power to a motor. Voltage sensors sense voltage across each of the solid state switches and AC line voltage. A control circuit controls operation of the solid state switches. The control circuit compares the sensed voltages across each of the solid state switches with the AC line voltage in a non-run mode to determine if there is a shorted solid state switch.Type: ApplicationFiled: August 19, 2005Publication date: March 9, 2006Inventor: Scott Mayhew
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Publication number: 20060049793Abstract: A motor controller system comprises solid state switches for connection between a single phase to three phase static converter and motor terminals for controlling application of three phase power to the motor. Sensors sense power from the static converter. A control is connected to the sensors and the solid state switches for controlling operation of the solid state switches to run the motor. The controller includes a three phase detection scheme for preventing operation of the solid state switches in the absence of desired three phase power from the static converter. A motor start scheme disables the three phase detection scheme for a select time after a motor run signal.Type: ApplicationFiled: August 19, 2005Publication date: March 9, 2006Inventor: Scott Mayhew
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Patent number: 7006338Abstract: A motor controller comprises a plurality of solid state switches each for connection between an AC line and a motor winding terminal for controlling application of AC power to the motor. A plurality of voltage sensors, each associated with one of the solid state switches, sense voltage for an associated motor winding. A control circuit controls operation of the solid state switches. The control circuit adjusts firing to one of the solid state switches if the sensed voltage for the associated winding varies from a threshold voltage by a select amount.Type: GrantFiled: September 23, 2002Date of Patent: February 28, 2006Assignee: Siemens Energy & Automation, Inc.Inventors: Scott Mayhew, Daniel Zuzuly, Scott Wakefield
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Patent number: 6984950Abstract: A remotely configurable motor controller system comprises a motor controller and a remote configuration device. The motor controller includes solid state switches for connection between an AC line and motor terminals for controlling application of AC power to the motor and a control circuit for controlling operation of the solid state switches. The control circuit comprises a programmed processor for commanding operation of the solid state switches and a memory connected to the programmed processor storing configuration information relating to operation of the solid state switches. A wireless communication interface is operatively connected to the programmed processor.Type: GrantFiled: September 23, 2002Date of Patent: January 10, 2006Assignee: Siemens Energy & Automation, Inc.Inventors: Gregg Jonsson, Scott Mayhew, Daniel Zuzuly, Scott Wakefield, Glenn Orin Ray
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Publication number: 20050241883Abstract: A motor control system for detecting motor run condition comprises power switches for connection to an AC line for controlling application of AC power to the motor. An input receives a motor start command. A controller is connected to the input and controls operation of the switches responsive to a motor start command. The controller includes a counter and a timer and is operable to disable the power switches if number of starts during a select interval exceeds a first threshold and to disable the power switches if motor run time after a motor start command exceeds a second threshold.Type: ApplicationFiled: April 28, 2004Publication date: November 3, 2005Inventors: Daniel Zuzuly, Scott Mayhew
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Publication number: 20050200326Abstract: An externally configurable soft starter system comprises a motor controller including solid state switches for controlling application of power to a motor. A control circuit controls operation of the solid state switches. The control circuit comprises a programmed processor for commanding operation of the solid state switches and a memory connected to the programmed processor storing parameters relating to operation of the solid state switches. An interface circuit is operatively connected to the programmed processor. An external device includes a memory for storing parameters relating to operation of the solid state switches and an interface for communication with the motor controller. A configuration program is operatively implemented in the programmed processor and the external configuration device for transferring a configuration database file between the controller memory and the external device memory.Type: ApplicationFiled: February 25, 2004Publication date: September 15, 2005Inventors: Scott Mayhew, Scott Wakefield, Daniel Zuzuly
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Publication number: 20050185350Abstract: A motor starter system comprises solid state switches for connection to an AC line for controlling application of AC power to the motor. A fault contactor has contacts. A motor wiring circuit operatively connects the solid state switches and fault contactor contacts with motor winding terminals. A voltage sensor senses AC line voltage and motor terminal voltage. A control circuit controls operation of the solid state switches and the fault contactor, including de-energizing the fault contactor in an off mode where AC line power is not supplied to the motor winding terminals. The control circuit detects AC line voltage and motor terminal voltage in the off mode and detect an error condition responsive to sensed AC line voltage being substantially different from motor terminal voltage in the off mode.Type: ApplicationFiled: February 25, 2004Publication date: August 25, 2005Inventors: Scott Wakefield, Daniel Zuzuly, Scott Mayhew
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Publication number: 20050187738Abstract: A soft starter system for monitoring and diagnosing electrical power system characteristics comprises a motor controller including solid state switches for controlling application of power to a motor. A control circuit controls operation of the solid state switches. The control circuit comprises a programmed processor for commanding operation of the solid state switches and for measuring electrical power system characteristics relating to operation of the solid state switches. A memory is connected to the programmed processor storing parameters of the measured electrical power system characteristics. An external monitoring and diagnostic device includes a memory for storing parameters of the measured electrical power system characteristics and an interface for communication with the motor controller.Type: ApplicationFiled: February 25, 2004Publication date: August 25, 2005Inventors: Daniel Zuzuly, Scott Mayhew, Scott Wakefield
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Patent number: 6924613Abstract: A motor controller system comprises solid state switches for connection between an AC line and motor terminals for controlling application of AC power to the motor. A user input elements selects a current imbalance parameter. Current sensors sense current in each winding of the motor. A control circuit controls operation of the solid state switches. The control circuit compares the sensed currents with the selected imbalance parameter to determine if a fault condition exists.Type: GrantFiled: September 23, 2002Date of Patent: August 2, 2005Assignee: Siemens Energy & Automation, Inc.Inventors: Gregg Jonsson, Scott Mayhew, Scott Wakefield, Daniel Zuzuly
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Patent number: 6894452Abstract: A configurable motor controller includes solid state switches for connection between an AC line and motor terminals for controlling application of AC power to the motor. A control circuit controls operation of the solid state switches. The control circuit comprises a programmed processor for commanding operation of the solid state switches. A memory is connected to the programmed processor storing configuration information relating to operation of the solid state switches. A user configuration device selects the values for the stored configuration information. The configuration information comprises adjustable values within a range. The configuration device is adapted to select any adjustable value within the range.Type: GrantFiled: September 23, 2002Date of Patent: May 17, 2005Assignee: Siemens Energy & Automation, Inc.Inventors: Scott Mayhew, Scott Wakefield, Daniel Zuzuly, Gregg Jonsson
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Publication number: 20040155622Abstract: A motor starter system comprises solid state switches for connection between an AC line and motor terminals for controlling application of AC power to the motor. A voltage sensor senses AC line voltage and the motor terminal voltage. Current sensors sense motor current. A control circuit controls operation of the solid state switches. The control circuit limits switch current during a start mode and detects a stall condition responsive to sensed AC line voltage and motor terminal voltage and selectively boosts motor current during the start mode if a stall condition is detected.Type: ApplicationFiled: February 2, 2004Publication date: August 12, 2004Inventors: Scott Mayhew, Scott Wakefield, Daniel Zuzuly
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Publication number: 20040056611Abstract: A configurable motor controller includes solid state switches for connection between an AC line and motor terminals for controlling application of AC power to the motor. A control circuit controls operation of the solid state switches. The control circuit comprises a programmed processor for commanding operation of the solid state switches. A memory is connected to the programmed processor storing configuration information relating to operation of the solid state switches. A user configuration device selects the values for the stored configuration information. The configuration information comprises adjustable values within a range. The configuration device is adapted to select any adjustable value within the range.Type: ApplicationFiled: September 23, 2002Publication date: March 25, 2004Inventors: Scott Mayhew, Scott Wakefield, Daniel Zuzuly, Gregg Jonsson