METHOD FOR OPERATING AN ELEVATOR IN AN EMERGENCY MODE

Method for operating an elevator (2) in an emergency mode wherein the elevator (2) comprises a car (4), a drive motor (10), a motor drive unit (26) which supplies power to the drive motor (10) and controls the same and an emergency power supply (42), wherein the motor drive unit (10) has a predeterm...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DEHMLOW MARVIN, ENGELHARD INGO, SCHROEDER-BRUMLOOP HELMUT, TUTAT ANDREAS
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY ELEVATORS ESCALATORS OR MOVING WALKWAYS GENERATION HAULING HOISTING LIFTING PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	Method for operating an elevator (2) in an emergency mode wherein the elevator (2) comprises a car (4), a drive motor (10), a motor drive unit (26) which supplies power to the drive motor (10) and controls the same and an emergency power supply (42), wherein the motor drive unit (10) has a predetermined normal operation switching frequency, comprising the following steps (a) supplying power from the emergency power supply (42); (b) bringing the motor drive unit ( ) in an emergency mode; (c) determining an actual emergency operation condition characteristic; and (d) setting the switching frequency of the motor drive unit (46) dependent on the actual emergency operation condition characteristic.