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BRAKE CONTROLLER, ELEVATOR SYSTEM AND A METHOD FOR PERFORMING AN EMERGENCY STOP WITH AN ELEVATOR HOISTING MACHINE DRIVEN WITH A FREQUENCY CONVERTER

  • US 20150053507A1
  • Filed: 11/05/2014
  • Published: 02/26/2015
  • Est. Priority Date: 05/31/2012
  • Status: Active Grant
First Claim
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1. A brake controller for controlling the electromagnetic brake of an elevator, said brake controller comprising:

  • an input for connecting the brake controller to the DC intermediate circuit of the frequency converter driving the hoisting machine of the elevator;

    an output for connecting the brake controller to an electromagnet of the brake;

    a solid-state switch for supplying electric power from the DC intermediate circuit of the frequency converter driving the hoisting machine of the elevator via the output to the electromagnet of a brake; and

    a processor, with which the operation of the brake controller is controlled by producing control pulses in the control pole of the switch of the brake controller.

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