JPS5459746A - Device of detecting trouble of elevator - Google Patents

Device of detecting trouble of elevator

Info

Publication number
JPS5459746A
JPS5459746A JP12438977A JP12438977A JPS5459746A JP S5459746 A JPS5459746 A JP S5459746A JP 12438977 A JP12438977 A JP 12438977A JP 12438977 A JP12438977 A JP 12438977A JP S5459746 A JPS5459746 A JP S5459746A
Authority
JP
Japan
Prior art keywords
signals
speed
elevator
trouble
detector
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.)
Pending
Application number
JP12438977A
Other languages
Japanese (ja)
Inventor
Hiromi Inaba
Kiyoya Shima
Takeyoshi Ando
Toshiaki Kurosawa
Hiroaki Kuroba
Yoshio Sakai
Kokichi Seki
Kazumitsu Aoki
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 JP12438977A priority Critical patent/JPS5459746A/en
Publication of JPS5459746A publication Critical patent/JPS5459746A/en
Pending legal-status Critical Current

Links

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

PURPOSE: To detec the abnormality of a control system in the deceleration operation periods of a door opening operation period, etc., by obtaining a trouble detector for detecting the surpassing of the speed of an elevator more than a fixed value as a trouble if said surpassing takes place even when the speed command signals of the elevator are in low speed.
CONSTITUTION: A trouble detector containing a simulated circuit 55 for putting out the transitional delay time of a motor control circuit is normally mounted to a controller that the output signals 7 of a speed detector 22 of a motor 21 for driving an elevator and the command signals 6 of a speed command generator are compared at a comparator 2, the deviated signals are sent to a generator field winding 16 to generate voltage corresponding to the deviated signals to an armature 15 of a generator and the voltage is fed to an armature of the motor 21. In this case, however, a 2nd speed detector 23 is further installed, the detected signals are setn to a level comparison circuit 25 and signals are put out which operate the relay 25 when the signals are not less than a level.
COPYRIGHT: (C)1979,JPO&Japio
JP12438977A 1977-10-19 1977-10-19 Device of detecting trouble of elevator Pending JPS5459746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12438977A JPS5459746A (en) 1977-10-19 1977-10-19 Device of detecting trouble of elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12438977A JPS5459746A (en) 1977-10-19 1977-10-19 Device of detecting trouble of elevator

Publications (1)

Publication Number Publication Date
JPS5459746A true JPS5459746A (en) 1979-05-14

Family

ID=14884195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12438977A Pending JPS5459746A (en) 1977-10-19 1977-10-19 Device of detecting trouble of elevator

Country Status (1)

Country Link
JP (1) JPS5459746A (en)

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