Title:
ELEVATOR CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/003356
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a control system (1) to reduce brake (7) wear. The control system (1) comprises a power conversion device (21), a brake switch (19), and an operation control device (20). The power conversion device (21) supplies power to an electric motor (8). The electric motor (8) raises and lowers a car (5) of an elevator (2). The brake switch (19) detects the operation state of the brake (7). The brake (7) brakes the electric motor (8). The operation control device (20) causes the power conversion device (21) to block supply of power to the electric motor (8) after a delay time To from when the brake switch (19) detects that the brake (7) is braking has passed.
Inventors:
OSHIMA RYO (JP)
Application Number:
PCT/JP2018/024047
Publication Date:
January 02, 2020
Filing Date:
June 25, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B1/32
Foreign References:
| JP2006096510A | 2006-04-13 | |||
| JP2013124179A | 2013-06-24 | |||
| JP2017214223A | 2017-12-07 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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