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Operation device for an elevator system

  • US 7,775,328 B2
  • Filed: 01/13/2005
  • Issued: 08/17/2010
  • Est. Priority Date: 01/13/2005
  • Status: Expired due to Fees
First Claim
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1. An operation device for an elevator system comprising:

  • a plurality of terminals configured to receive AC power supply voltage from a 3-phase AC power source;

    a drive device connected to the plurality of terminals for driving a motor of the elevator system, the motor causing movement of an elevator car;

    a transformer connected to at least two of the plurality of terminals, the transformer providing at least one supply voltage to the remainder of the elevator system;

    an auxiliary power supply having an auxiliary power supply output for providing an auxiliary output voltage;

    the auxiliary power supply output being connected to the transformer in an emergency operation of the elevator system for generating an auxiliary supply voltage provided to the drive device via the transformer.

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