Steuerungsverfahren zur Begrenzung der Antriebskraft eines Antriebs, insbesondere eines Tür- oder Drehflügelantriebs sowie zugehörige Sicherheitsschaltung

In order to create an improved control method for limiting the drive force of a drive, especially of a door drive or rotary wing drive, and to create an associated safety circuit which, with a very much higher level of safety, precludes the production of excessively high drive forces and moments, a...

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Bibliographic Details
Main Author BUERGI, DANIEL, WERNETSHAUSEN, CH
Format Patent
LanguageGerman
Published 14.04.1994
Edition5
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Summary:In order to create an improved control method for limiting the drive force of a drive, especially of a door drive or rotary wing drive, and to create an associated safety circuit which, with a very much higher level of safety, precludes the production of excessively high drive forces and moments, a redundant safety circuit is provided for calculating the torque of an electric motor. The torque is in this case normally calculated once for the electrical DC motor, from the current intensity. The torque is determined independently of this from the electric motor set of characteristics, using the rotation speed and the setting for full-load operation or partial-load operation of the electric motor. In the event of a discrepancy between the values, a suitable current-limiting circuit or interruption circuit can be activated.
Bibliography:Application Number: DE19924234501