Safety circuit monitoring using alternating voltage

Safety circuit monitoring using alternating voltage

A monitoring system for people-transporting systems, which systems are in the form of an elevator, escalator or moving walkway, includes at least one interrogation device and at least one safety switch that is connected to the interrogation device via an electrical safety circuit and is used for mon...

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1. Verfasser: Lustenberger, Ivo
Format: Patent
Sprache:eng
Schlagworte:
ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PERFORMING OPERATIONS
PHYSICS
TESTING
TRANSPORTING
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creator Lustenberger, Ivo
description A monitoring system for people-transporting systems, which systems are in the form of an elevator, escalator or moving walkway, includes at least one interrogation device and at least one safety switch that is connected to the interrogation device via an electrical safety circuit and is used for monitoring an equipment of the people-transporting device. A current direction-dependent unit is arranged in the electrical safety circuit. Furthermore, the interrogation device applies a test voltage with an alternating polarity to the electrical safety circuit. Furthermore, a people-transporting system having such a monitoring system is provided.
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subjects ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PERFORMING OPERATIONS
PHYSICS
TESTING
TRANSPORTING
title Safety circuit monitoring using alternating voltage
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