JPS5459744A - Controller of direct current elevator - Google Patents

Controller of direct current elevator

Info

Publication number
JPS5459744A
JPS5459744A JP12443677A JP12443677A JPS5459744A JP S5459744 A JPS5459744 A JP S5459744A JP 12443677 A JP12443677 A JP 12443677A JP 12443677 A JP12443677 A JP 12443677A JP S5459744 A JPS5459744 A JP S5459744A
Authority
JP
Japan
Prior art keywords
elevator
exciter
field
field winding
current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP12443677A
Other languages
Japanese (ja)
Other versions
JPS612588B2 (en
Inventor
Takeyoshi Ando
Kiyoya Shima
Toshiaki Kurosawa
Hiromi Inakusa
Hiroaki Kuroba
Yoshio Sakado
Katsuto Isshiki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12443677A priority Critical patent/JPS5459744A/en
Publication of JPS5459744A publication Critical patent/JPS5459744A/en
Publication of JPS612588B2 publication Critical patent/JPS612588B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To obtain a field control method of a DC motor that can safely maintain an elevator when service interruption while allowing the safe travelling of the elevator even if a brake is in a trouble when the elevator is in a stop condition.
CONSTITUTION: This controller of a DC elevator is arranged in such manner that field current flowing through a field winding 2 detected at a current detector 5 by means of a phase shifter 12 and a reference command signal ic are compared, and pulse signals sent in response to the difference are applied to a thyristor rectifying circuit 11 through diodes 13, 14, etc., thus the output current of the rectifying circuit 11 is controlled, then the field current of an exciter 4 flowing through a field winding 8 is controlled. In this case, a parallel circuit of a resistance 22 and a contact piece 231a opening when a terminal emergency deceleration relay 23 is in OFF is connected between said exciter 4 and the motor field winding 2, thus resulting in a fixed low speed of cage speed in case of the self-excitation of the exciter 4 when service interruption.
COPYRIGHT: (C)1979,JPO&Japio
JP12443677A 1977-10-19 1977-10-19 Controller of direct current elevator Granted JPS5459744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12443677A JPS5459744A (en) 1977-10-19 1977-10-19 Controller of direct current elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12443677A JPS5459744A (en) 1977-10-19 1977-10-19 Controller of direct current elevator

Publications (2)

Publication Number Publication Date
JPS5459744A true JPS5459744A (en) 1979-05-14
JPS612588B2 JPS612588B2 (en) 1986-01-25

Family

ID=14885436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12443677A Granted JPS5459744A (en) 1977-10-19 1977-10-19 Controller of direct current elevator

Country Status (1)

Country Link
JP (1) JPS5459744A (en)

Also Published As

Publication number Publication date
JPS612588B2 (en) 1986-01-25

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