CONTROLLER FOR ELEVATOR

PURPOSE:To improve a stop shock, when an emergency passenger is carried by manual operation, by providing a selector switch for normal manual operation and emergency manual operation and operating this switch to select a control, at the time of stopping manual operation, at normal time and emergency...

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Bibliographic Details
Main Author AOI TAKAAKI
Format Patent
LanguageEnglish
Published 24.09.1991
Subjects
ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
PERFORMING OPERATIONS
TRANSPORTING
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Summary:PURPOSE:To improve a stop shock, when an emergency passenger is carried by manual operation, by providing a selector switch for normal manual operation and emergency manual operation and operating this switch to select a control, at the time of stopping manual operation, at normal time and emergency time. CONSTITUTION:At the time of normal manual operation, a selector switch 30 is opened to deenergize a relay 31, and its normally open contacts 31a, 31b are opened. Accordingly, a microcomputer 21, which receives these signals through interfaces 12 and 32, is judged NO of no-processing while quick stopped when manual up-operation pushbuttons or manual down-operation pushbuttons 17-1 to 17-3 or 19-1 to 19-3 are released. Next at the time of emergency manual operation, the switch 30 is opened, and the relay 31 is energized with its normally-open contacts 31a, 31b closed. Accordingly, no quick stop is performed, even when the pushbuttons 17-1 to 17-3 or 19-1 to 19-3 are released, to lower a speed command, and a speed feedback control is performed being based on this command.
Bibliography:Application Number: JP19900013072