ELEVATOR, METHOD FOR OPERATING AN ELEVATOR IN AN EMERGENCY
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United States of America Patent
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Issued Date -
Feb 15, 2024
app pub date -
Dec 23, 2021
filing date -
Dec 24, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
An elevator has a safety control unit that distinguishes between a first input signal and a second input signal at an input for selecting an operating mode. The elevator has a main switch device with a switch, the main switch device being accessible from outside a shaft of the elevator. The main switch device and the safety control unit are connected, wherein the switch is switchable from a first state into a second state. The safety control unit operates in a first operating mode when the switch is in the first state, in a second operating mode when the switch is in the second state and the safety control unit detects the first input signal at the input, and in a third operating mode when the switch is switched to the second state and the safety control unit detects the second input signal at the input.
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