Elevator variable frequency control system

Elevator variable frequency control system

The invention discloses an elevator variable frequency control system which comprises a main power supply, a variable frequency speed regulating and direct-current brake system, a drive motor, a control power supply, an instruction system, a light load automatic acceleration control system, a load d...

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Hauptverfasser: XU SHAOTIAN, LIU PEITAO, XU WEI
Format: Patent
Sprache:chi ; eng
Schlagworte:
ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
PERFORMING OPERATIONS
TRANSPORTING
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creator XU SHAOTIAN
LIU PEITAO
XU WEI
description The invention discloses an elevator variable frequency control system which comprises a main power supply, a variable frequency speed regulating and direct-current brake system, a drive motor, a control power supply, an instruction system, a light load automatic acceleration control system, a load detection system, a safety protection system and an electromagnetic brake system. The light load automatic acceleration control system is connected with the variable frequency speed regulating and direct-current brake system, the control power supply, the instruction system and the safety protection system. The load detection system sends load light-load signals to the instruction system and the safety protection system. The variable frequency speed regulating and direct-current brake system sends transducer failure signals to the safety protection system and sends band-type brake control signals of a variable frequency system to the electromagnetic brake system. The drive motor is connected with the electromagnetic
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The light load automatic acceleration control system is connected with the variable frequency speed regulating and direct-current brake system, the control power supply, the instruction system and the safety protection system. The load detection system sends load light-load signals to the instruction system and the safety protection system. The variable frequency speed regulating and direct-current brake system sends transducer failure signals to the safety protection system and sends band-type brake control signals of a variable frequency system to the electromagnetic brake system. 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The light load automatic acceleration control system is connected with the variable frequency speed regulating and direct-current brake system, the control power supply, the instruction system and the safety protection system. The load detection system sends load light-load signals to the instruction system and the safety protection system. The variable frequency speed regulating and direct-current brake system sends transducer failure signals to the safety protection system and sends band-type brake control signals of a variable frequency system to the electromagnetic brake system. The drive motor is connected with the electromagnetic</abstract><oa>free_for_read</oa></addata></record>
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subjects ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
PERFORMING OPERATIONS
TRANSPORTING
title Elevator variable frequency control system
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