Title:
DEVICE FOR DETECTING OPERATING CONDITION OF ELEVATOR SOLENOID BRAKE
Document Type and Number:
Japanese Patent JPS616437
Kind Code:
A
Abstract:
PURPOSE:To attain the accurate operating condition of a brake by providing a microcomputer adapted to detect the operating condition of an elevator solenoid brake, compare the travel with a reference value, and judge whether it is abnormal or not. CONSTITUTION:A signal from a displacement detector 21 for detecting the operating condition of a solenoid brake movable iron core is stored in RAM24 by an input/output control device 27. These processings are performed every fixed time by confirming the absence/existence of detected voltage of the displacement detector 21 by MPU22 according to a program previously stored isn RAM23. Accordinglty, the attraction/release time and travel of the movable iron core can be computed to be compared with a reference value, so that the operating condition of a brake can be attained accurately.
Inventors:
YANAI ATARU
SENDA HIKARI
KOUNO KENJI
SENDA HIKARI
KOUNO KENJI
Application Number:
JP12525284A
Publication Date:
January 13, 1986
Filing Date:
June 20, 1984
Export Citation:
Assignee:
HITACHI LTD
HITACHI ELEVATOR & SERVICE
HITACHI ELEVATOR & SERVICE
International Classes:
B66B1/32; B66B5/02; F16D66/00; (IPC1-7): B66B1/32; B66B5/00; F16D66/00
Attorney, Agent or Firm:
Akio Takahashi
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