FIELD: elevators.
SUBSTANCE: invention relates to elevator. Non-isolated power supply of safe brake of elevator contains safety control module and main circuit of brake power supply. Input terminal of the safety control module is connected to the safety circuit of the elevator, and the output terminal is connected to the controlled terminal of the main circuit of the brake power supply. Input terminal of the main circuit of the brake power supply is connected to the input power supply through the overcurrent protection device, and the output terminal is connected to the elevator brake. Brake power supply main circuit supplies power to said elevator brake. Safety control module opens or closes the electrical connection between the main circuit of the brake power supply and the elevator brake in accordance with the output signal of the elevator safety circuit.
EFFECT: reduced danger and noise at start-up.
10 cl, 2 dwg
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