Patents Assigned to Lenze Automation GmbH
  • Patent number: 10949195
    Abstract: A method for changing over to a firmware version in an electrical control unit for a drive system, wherein the electrical control unit is suitable for executing an existing application program for operating the drive system, and a different firmware version is in operation in the electrical control unit. The method a) checks the existing application program for compatibility with the one firmware version by use of a script, and b) in the case where the existing application program is compatible with the one firmware version, changes over from the other firmware version to the one firmware version in the electrical control unit.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: March 16, 2021
    Assignee: Lenze Automation GmbH
    Inventor: Nikolai Just
  • Patent number: 10910956
    Abstract: A method is provided for operating a frequency converter, which is designed to drive a three-phase motor, wherein the frequency converter has three half-bridges each having at least two switches. The method includes the following steps: generating three phase voltages for the three-phase motor by a pulse width modulation, wherein, for the pulse width modulation, various switching patterns of the switches are activated, wherein specific star point voltages ensue for various groups of switching patterns; and in at least one operating state of the frequency converter, within a respective period of the pulse width modulation, activating only those switching patterns in which an identical star point voltage ensues.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: February 2, 2021
    Assignee: Lenze Automation GmbH
    Inventors: Fritz Witte, Thomas Petersen, Dirk Duesterberg
  • Patent number: 10879925
    Abstract: A method produces a digital signal from an analog signal. The method includes: producing a pulse-width-modulated actuation signal by a frequency converter, wherein the pulse-width-modulated actuation signal is produced over a number n of periods of the pulse width modulation such that the signal curve of the pulse-width-modulated actuation signal is identical in the respective periods; applying the actuation signal to a load; producing a bitstream with a predetermined bit repetition duration depending on an analog signal to be measured by a sigma-delta modulator, wherein the analog signal to be measured depends on the actuation signal and on the load, wherein a number m of bits are produced and stored with the predetermined bit repetition duration over a respective period of the pulse-width-modulated actuation signal; and summing corresponding bits of the respective periods in order to form the digital signal.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: December 29, 2020
    Assignee: Lenze Automation GmbH
    Inventors: Andreas Wempe, Dirk Duesterberg
  • Publication number: 20200348661
    Abstract: A system for the control and/or fault diagnosis of an electric drive system, where the drive system may be integrated into the system via a data connection, and may have a user interface for entering a command by a user. The system may be designed to compare a user-entered command with predefined commands and to select a command matching the command entered from the predefined commands. According to an embodiment of the system described herein, in the case of lack of agreement of the command entered by the user with a predefined command, the system may perform an interpretation of the entered command using methods of artificial intelligence in order to assign it to a predefined command.
    Type: Application
    Filed: September 12, 2018
    Publication date: November 5, 2020
    Applicant: Lenze Automation GmbH
    Inventors: Christof Ranze, Edgar Schueber, Marc Roehrig, Oliver Hollmann
  • Patent number: 10784889
    Abstract: An electric control device includes a first delta sigma modulator having a clock input connection, a second delta sigma modulator having a clock input connection, and an evaluation unit. The evaluation unit includes a first clock output connection which is connected to the clock input connection of the first delta sigma modulator by a first electrical cable, and a second clock output connection which is connected to the clock input connection of the second delta sigma modulator by a second electrical cable. The evaluation unit is designed to generate a clock signal (CLK1) at the first clock output connection (7) in phase opposition to a clock signal (CLK2) at the second clock output connection (9).
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: September 22, 2020
    Assignee: Lenze Automation GmbH
    Inventors: Dirk Duesterberg, Daniel Borowski, Andreas Burgermeister
  • Patent number: 10705991
    Abstract: A circuit for generating a sampling signal for a UART interface has an input terminal designed to receive a peripheral clock, an output terminal designed to output the sampling signal, a bit rate memory designed to store a value corresponding to a desired bit rate of the UART interface, a peripheral clock memory designed to store a value corresponding to a frequency of the peripheral clock, a sum memory designed to store a sum value, and a computing unit. The computing unit compares a comparison value, which is dependent on the sum value stored in the sum memory, with a threshold value, which is dependent on the value stored in the peripheral clock memory. The result of the comparison is taken as a basis for generating the sampling signal at a first level or a second level.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: July 7, 2020
    Assignee: Lenze Automation GmbH
    Inventor: Dirk Duesterberg
  • Patent number: 10649932
    Abstract: An electrical controller includes a first interface via which data are able to be transferred, a second interface, separate from the first interface, via which data are able to be transferred, a control unit, and an operating mode memory for storing operating mode information. The control unit is configured to operate the controller in a first safety-oriented operating mode or in a second safety-oriented operating mode depending on the stored operating mode information.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: May 12, 2020
    Assignee: Lenze Automation GmbH
    Inventor: Peter Hesse
  • Patent number: 10459617
    Abstract: In a method for adjusting a range of numerical values at an input device for configuration or selection of the components of an electrical drive system with regard to a parameter as numerical value, the input device has a display. On the display, a minimum value and spaced apart from it a maximum value are displayed variably for the numerical value, wherein the minimum value and the maximum value form or span between them a range of numerical values. By way of a zooming function, the minimum value and the maximum value can be altered, increased or reduced in such a manner that the adjusting of a range of numerical values can take place more easily and more accurately.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: October 29, 2019
    Assignee: Lenze Automation GmbH
    Inventors: Robert Wloch, Olaf Goetz
  • Patent number: 10402055
    Abstract: A method is provided for configuring an electrical drive system and a machine is provided that can execute such a method. In order to select and set drive system parameter values, it is possible here, when a selectable number exceeds a threshold value, to display a dialogue in which a search field for supporting the input is available.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: September 3, 2019
    Assignee: Lenze Automation GmbH
    Inventor: Otmar Foessing
  • Patent number: 10348325
    Abstract: A measuring device includes a delta-sigma modulator configured to take an analog signal as a basis for generating a bit stream, and an evaluation unit that receives the bit stream from the delta-sigma modulator and evaluates the received bit stream. The measuring device has a single data transmission line, wherein the delta-sigma modulator is configured to transmit the bit stream to the evaluation unit via the single data transmission line using a transmit clock, and wherein the evaluation unit is configured to reconstruct the transmit clock and/or a phase of bits within the bit stream from the received bit stream and to extract the bits from the received bit stream based on the reconstructed transmit clock and/or based on the reconstructed phase.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: July 9, 2019
    Assignee: Lenze Automation GmbH
    Inventor: Dirk Duesterberg
  • Patent number: 10254742
    Abstract: An electrical drive system includes a motor, a load device and a coupling unit, wherein a slip is calculated by comparing signals between a motor sensor and a load sensor, and a motor sensor-based position of the load device is cyclically updated, provided that a slip remains below a slip threshold value.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: April 9, 2019
    Assignee: Lenze Automation GmbH
    Inventors: Torsten Wedemeyer, Elmar Hartmann
  • Patent number: 9648774
    Abstract: A frequency converter (10a, 10b, 10c) includes a housing (30), a circuit board (12a) arranged in the housing, and a coupling arrangement (20) arranged externally on the housing (30) for galvanically coupling the circuit board (12a) to an adjacently arranged second frequency converter (10b, 10c), wherein the coupling arrangement (20) either comprises a base portion (22) and a coupling member (26) movable with respect to the base portion (22) along a defined movement path, or is formed as a rigid busbar which is designed for simultaneous attachment to the frequency converter and the second frequency converter, and the coupling arrangement (22) is galvanically coupled to the circuit board (12a). The coupling arrangement (22) is connected to the circuit board (12a) by a spring element (40), wherein this spring element (40) has a fastening portion (44) on the circuit board side and a fastening portion (42) on the coupling arrangement side.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: May 9, 2017
    Assignee: Lenze Automation GmbH
    Inventors: Edmund Neumann, Uwe Beilfuss-Spickmann, Andreas Wempe, Frank Oltmann
  • Patent number: 9270294
    Abstract: A method is provided for generating a digital signal from an analog signal generated using a frequency converter on the basis of pulse width modulation with a variable period duration, values of the digital signal corresponding to an average value of the analog signal over an associated period duration of the pulse width modulation.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: February 23, 2016
    Assignee: Lenze Automation GmbH
    Inventors: Dirk Duesterberg, Heiko Stichweh
  • Patent number: 9000757
    Abstract: The invention relates to a monitoring method in which two variables of angle-dependent, amplitude-modulated carrier frequency signals are emitted on orthogonal windings (12a, 12b) of the rotational angle sensor and an evaluation is carried out by an input amplifier (V2, 11) which emits an output signal that is essentially zero when the signals of the variables are generated according to functional usage. Alternately, an interference signal is generated at one-second intervals in both windings (12a, 12b) of the rotational angle sensor, the result of which is being evaluated and monitored by means of an input amplifier (V2, 11). An interference display signal is generated at the output of the input amplifier (V2, 11), said interference display signal being not equal to zero if no error or interruption is present in the system and equal to zero if an error or interruption is present in the system.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: April 7, 2015
    Assignee: Lenze Automation GmbH
    Inventor: Thomas Eutebach
  • Patent number: 8970417
    Abstract: A method is provided for generating a digital signal (DS) from an analog signal (IA, UA) generated by a frequency converter on the basis of pulse width modulation, wherein the digital signal corresponds to a mean value of the analog signal over a period of the pulse width modulation. The method includes the acts of: generating a bit stream (BS(i)) with a predetermined bit repetition duration (BW) depending on the analog signal by way of a sigma-delta modulator (1) and, during a time interval which has a duration which is at least as great as the period of the pulse width modulation: multiplying a respective bit (BS(i)) of the bit stream by a corresponding rating coefficient (BK(i)) for generating a respective bit/rating coefficient product and summing the respective bit/rating coefficient products, wherein the sum represents the digital signal.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: March 3, 2015
    Assignee: Lenze Automation GmbH
    Inventors: Dirk Duesterberg, Holger Borcherding
  • Patent number: 8952645
    Abstract: In the case of speed-regulated high-power drives and with simultaneously high demands on accuracy or dynamics, the object of the invention is to reduce a very high level of complexity of the power electronics (high clock frequency), the motor (high precision) and mechanical transmission (low-play transmission elements). For this purpose, the invention proposes a drive device for rotational and/or t translational movements. The drive has a plurality of drives for the joint, mechanically coupled driving of a working machine or for moving a mass. It also has a control device. At least one drive is intended to provide the power (as a power drive). At least one further drive is provided and mechanically coupled as a servo-drive for controlling or regulating the accuracy and/or dynamics of the overall drive. The control device controls and regulates the at least two mechanically coupled drives.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: February 10, 2015
    Assignee: Lenze Automation GmbH
    Inventor: Carsten Fraeger
  • Patent number: 8928312
    Abstract: In a method for monitoring the determination of a rotor angle of a rotating shaft by use of a resolver monitoring the determination of the rotor angle is carried out by: a first test AC voltage at a test frequency which is not the same as an exciter frequency of the resolver is applied to a first stator winding of the resolver, and a second test AC voltage at the test frequency is applied to at least one second stator winding of the resolver, wherein the first and the second test AC voltages are produced such that an AC voltage is induced all the time in at least one rotor winding of the resolver as a result of the first and the second test AC voltages.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: January 6, 2015
    Assignee: Lenze Automation GmbH
    Inventors: Axel Pasternack, Karl-Dieter Tieste, Henning Duerkop
  • Publication number: 20140334118
    Abstract: A frequency converter (10a, 10b, 10c) includes a housing (30), a circuit board (12a) arranged in the housing, and a coupling arrangement (20) arranged externally on the housing (30) for galvanically coupling the circuit board (12a) to an adjacently arranged second frequency converter (10b, 10c), wherein the coupling arrangement (20) either comprises a base portion (22) and a coupling member (26) movable with respect to the base portion (22) along a defined movement path, or is formed as a rigid busbar which is designed for simultaneous attachment to the frequency converter and the second frequency converter, and the coupling arrangement (22) is galvanically coupled to the circuit board (12a). The coupling arrangement (22) is connected to the circuit board (12a) by a spring element (40), wherein this spring element (40) has a fastening portion (44) on the circuit board side and a fastening portion (42) on the coupling arrangement side.
    Type: Application
    Filed: November 7, 2012
    Publication date: November 13, 2014
    Applicant: Lenze Automation GmbH
    Inventors: Edmund Neumann, Uwe Beilfuss-Spickmann, Andreas Wempe, Frank Oltmann
  • Publication number: 20140226709
    Abstract: A method is provided for generating a digital signal (DS) from an analog signal (IA, UA) generated by a frequency converter on the basis of pulse width modulation, wherein the digital signal corresponds to a mean value of the analog signal over a period of the pulse width modulation. The method includes the acts of: generating a bit stream (BS(i)) with a predetermined bit repetition duration (BW) depending on the analog signal by way of a sigma-delta modulator (1) and, during a time interval which has a duration which is at least as great as the period of the pulse width modulation: multiplying a respective bit (BS(i)) of the bit stream by a corresponding rating coefficient (BK(i)) for generating a respective bit/rating coefficient product and summing the respective bit/rating coefficient products, wherein the sum represents the digital signal.
    Type: Application
    Filed: August 7, 2012
    Publication date: August 14, 2014
    Applicant: Lenze Automation GmbH
    Inventors: Dirk Duesterberg, Holger Borcherding
  • Publication number: 20110187358
    Abstract: The invention relates to a monitoring method in which two variables of angle-dependent, amplitude-modulated carrier frequency signals are emitted on orthogonal windings (12a, 12b) of the rotational angle sensor and an evaluation is carried out by an input amplifier (V2, 11) which emits an output signal that is essentially zero when the signals of the variables are gene-rated according to functional usage. Alternately, an interference signal is generated at one-second intervals in both windings (12a, 12b) of the rotational angle sensor, the result of which is being evaluated and monitored by means of an input amplifier (V2, 11). An interference display signal is generated at the output of the input amplifier (V2, 11), said interference display signal being not equal to zero if no error or interruption is present in the system and equal to zero if an error or interruption is present in the system.
    Type: Application
    Filed: May 26, 2009
    Publication date: August 4, 2011
    Applicant: LENZE AUTOMATION GMBH
    Inventor: Thomas Eutebach