JPS5497946A - Elevator cage speed controller - Google Patents

Elevator cage speed controller

Info

Publication number
JPS5497946A
JPS5497946A JP421078A JP421078A JPS5497946A JP S5497946 A JPS5497946 A JP S5497946A JP 421078 A JP421078 A JP 421078A JP 421078 A JP421078 A JP 421078A JP S5497946 A JPS5497946 A JP S5497946A
Authority
JP
Japan
Prior art keywords
speed
cage
terminal
elevator cage
voltage
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
JP421078A
Other languages
Japanese (ja)
Inventor
Keishin Hatakeyama
Masaru Komuro
Takeshi Ohira
Tomiaki Awahara
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 JP421078A priority Critical patent/JPS5497946A/en
Publication of JPS5497946A publication Critical patent/JPS5497946A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To economically and highly reliably control an elevator cage speed by comparing the speed standard instruction reducing in response to the decelerating position of the cage with a speed feedback signal to thereby control the deceleration of the cage.
CONSTITUTION: Pulses for detecting the elevating position of an elevator cage is detected by applying the voltage between any AC terminal of a speed feedback voltage detecting rectifier 28 and a terminal 24-7 such as, for example, the voltage across a diode 28-6 between the terminal 28-10 and the terminal 24-7 to a waveform shaping circuit 24. That is, the circuit 24 will poroduce one pulse during one cycle, synchronizing with the output frequency of an AC tachometer generator 22. Since the pulse frequency is poroportional to the rotating speed of a motor 2, it is applied to a counter thereby detect the elevating position of the elevator cage to thus form a speed standard instruction and to compare it with the speed feedback signal so as to control speed of the cage.
COPYRIGHT: (C)1979,JPO&Japio
JP421078A 1978-01-20 1978-01-20 Elevator cage speed controller Pending JPS5497946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP421078A JPS5497946A (en) 1978-01-20 1978-01-20 Elevator cage speed controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP421078A JPS5497946A (en) 1978-01-20 1978-01-20 Elevator cage speed controller

Publications (1)

Publication Number Publication Date
JPS5497946A true JPS5497946A (en) 1979-08-02

Family

ID=11578261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP421078A Pending JPS5497946A (en) 1978-01-20 1978-01-20 Elevator cage speed controller

Country Status (1)

Country Link
JP (1) JPS5497946A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103014A (en) * 1980-01-23 1981-08-17 Hitachi Ltd Speed controlling device for conveying system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103014A (en) * 1980-01-23 1981-08-17 Hitachi Ltd Speed controlling device for conveying system
JPS6317726B2 (en) * 1980-01-23 1988-04-14 Hitachi Ltd

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