JPS5459744A - Controller of direct current elevator - Google Patents
Controller of direct current elevatorInfo
- 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
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
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) |
-
1977
- 1977-10-19 JP JP12443677A patent/JPS5459744A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS612588B2 (en) | 1986-01-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5534854A (en) | Controlling method of secondary winding-exciting motor | |
US3970901A (en) | Method and apparatus for the detection of short circuits | |
JPS5459744A (en) | Controller of direct current elevator | |
KR850005819A (en) | Elevator speed controller | |
GB1469576A (en) | System for automatically bringing an elevator cage to a floor level in the event of a power failure | |
JPS5447258A (en) | Contoller for speed reduction of elevator | |
US3948357A (en) | Transportation system with decelerating control | |
JPS5455948A (en) | Apparatus for controlling grounding speed of suspended cargo | |
US2982897A (en) | Dual-motor a.c. drive for automatic hoists | |
JPS6239017Y2 (en) | ||
US4357996A (en) | Speed control device for an elevator | |
JPS6027627B2 (en) | Elevator failure detection device | |
JPS5684162A (en) | Pinch roll speed control device of cotinuous casting equipment | |
JPS53546A (en) | Control system for dc elevator | |
JPS642984A (en) | Rescue operation device for elevator | |
JPS5513613A (en) | Speed controller for electric motor | |
KR840002323B1 (en) | Variable speed passenger transit device | |
JPS5513610A (en) | Controller for current-type inverter | |
JPS5336851A (en) | Device for automatically stopping elevator cage at floor upon electric power service interruption | |
SU770873A1 (en) | Apparatus for pulse-type controlling of direct current voltage of traction electric motor | |
JPS5456125A (en) | Dynamic braking control system for electric motor vehicle | |
JPS5470547A (en) | Protective apparatus for crane | |
JPS5319515A (en) | Determined position stopping system of vehicle upon power control | |
GB1309134A (en) | Electric motor control system | |
GB1319684A (en) | Hoists |