JPS5497946A - Elevator cage speed controller - Google Patents
Elevator cage speed controllerInfo
- 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
Links
- 230000003028 elevating Effects 0.000 abstract 2
- 238000007493 shaping process Methods 0.000 abstract 1
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56103014A (en) * | 1980-01-23 | 1981-08-17 | Hitachi Ltd | Speed controlling device for conveying system |
-
1978
- 1978-01-20 JP JP421078A patent/JPS5497946A/en active Pending
Cited By (2)
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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