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

摘要

The present invention relates to a brake controller (7), an elevator system and a method for executing an emergency stop. The brake controller 7 has input controllers 29A and 29B for connecting the brake controller to the DC intermediate circuits 2A and 2B of the frequency converter for driving the winch of the elevator, and the brake controller 7 to the electromagnet 10 of the brake. Power toward the electromagnet 10 of the brake 9 from the DC intermediate circuits 2A, 2B of the frequency converter driving the elevator winch via outputs 4A, 4B and 4A, 4B for connecting And a processor 11 for controlling the operation of the brake controller 7 by generating control pulses in the control poles of the switches 8A and 8B of the brake controller.