JPH08157161A - Ac elevator operation control device at power failure time - Google Patents

Ac elevator operation control device at power failure time

Info

Publication number
JPH08157161A
JPH08157161A JP6305107A JP30510794A JPH08157161A JP H08157161 A JPH08157161 A JP H08157161A JP 6305107 A JP6305107 A JP 6305107A JP 30510794 A JP30510794 A JP 30510794A JP H08157161 A JPH08157161 A JP H08157161A
Authority
JP
Japan
Prior art keywords
power failure
elevator
power supply
electric power
inverter device
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
JP6305107A
Other languages
Japanese (ja)
Inventor
Akihiro Adachi
明宏 安達
Katsuhiro Inoue
勝博 井上
Kazuo Higashida
一夫 東田
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 Building Systems Engineering and Service Co Ltd
Hitachi Building Systems Engineering Co Ltd
Original Assignee
Hitachi Building Systems Engineering and Service Co Ltd
Hitachi Building Systems Engineering Co 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 Building Systems Engineering and Service Co Ltd, Hitachi Building Systems Engineering Co Ltd filed Critical Hitachi Building Systems Engineering and Service Co Ltd
Priority to JP6305107A priority Critical patent/JPH08157161A/en
Publication of JPH08157161A publication Critical patent/JPH08157161A/en
Pending legal-status Critical Current

Links

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

PURPOSE: To enable rescue operation without using a safety device even when a stopping position of an elevator passes through a level of the uppermost floor or the lowest floor at power failure time by supplying electric power to an elevator driving induction electric motor through an inverter device from DC electric power supply at power failure time, and issuing an operation command of the prescribed direction. CONSTITUTION: When power failure is caused in electric power supply RST for normal service, electric power is supplied to a three-phase induction motor IM from DC electric power supply EB (such as a battery) through an inverter device INV to convert a direct current into an alternating current. That is, an output electric current from a gate electric current supply circuit GD is supplied to gates of respective transistors, and a three-phase altenating current is outputted from the inverter device INV. When power failure is caused in the electric power supply RST for normal service when an elevator is operated, the elevator is stopped, and a no-voltage detecting relay SA detects it, and is turned off, and an energency operation relay SB is turned on. Therefore, a central processing unit CPU is turned on, and issues an operation command of the prescribed direction after safety of an existing elevator is confirmed.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は常用電源停電時に別設置
の直流電源を用いてエレベータを救出運転する停電時の
交流エレベータ運転制御装置に係り、特に運転方向制御
を特徴とする、停電時の交流エレベータ運転制御装置に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AC elevator operation control device at the time of a power outage in which an elevator is rescued by using a separately installed DC power supply during a power outage of a regular power supply. The present invention relates to an AC elevator operation control device.

【0002】[0002]

【従来の技術】従来、常用電源停電時に別設置の直流電
源を用いてエレベータを救出運転させるときに、常に所
定の方向に運転指令を出す方式であった。
2. Description of the Related Art Conventionally, there has been a method of always issuing an operation command in a predetermined direction when a rescue operation of an elevator is performed by using a separately installed DC power supply in the event of a power failure of a regular power supply.

【0003】[0003]

【発明が解決しようとする課題】上記従来技術におい
て、所定の方向を上昇方向とした場合、最上階付近で上
昇方向に運転中に停電したら停電後のかごの滑りにより
かご停止位置が最上階のレベルを過ぎる場合がある。こ
のときに所定の方向である上昇方向に運転すると救出運
転ができなくなるという問題があった。
In the above prior art, when the predetermined direction is the ascending direction, if a power failure occurs during operation in the ascending direction near the uppermost floor, the car will stop after the power failure due to the slipping of the car. It may pass the level. At this time, there is a problem that rescue operation cannot be performed if the vehicle is driven in a predetermined direction, which is an ascending direction.

【0004】また、上記所定の方向を下降方向とした場
合、最下階付近で下降方向に運転中に停電したら停電後
のかごの滑りによりかご停止位置が最下階のレベルを過
ぎる場合がある。このときに所定の方向である下降方向
に運転すると救出運転ができなくなるという問題があっ
た。
Further, when the predetermined direction is set to the descending direction, if there is a power failure during operation in the descending direction near the lowermost floor, the car stop position may exceed the level of the lowermost floor due to the sliding of the car after the power failure. . At this time, there is a problem that rescue operation cannot be performed if the vehicle is driven in a predetermined downward direction.

【0005】また、救出運転ができないだけでなく、端
階安全装置が動作してしまうので常用電源復電時におけ
るエレベータの自動復帰ができなくなる。
Further, not only the rescue operation cannot be performed, but also the end-floor safety device operates, so that the elevator cannot be automatically restored when the power is restored to the normal power supply.

【0006】本発明の目的は上記問題を解決するため
に、簡単な構成で実現できる停電時の交流エレベータ運
転制御装置を提供することにある。
SUMMARY OF THE INVENTION It is an object of the present invention to provide an AC elevator operation control device at the time of power failure which can be realized with a simple structure in order to solve the above problems.

【0007】[0007]

【課題を解決するための手段】上記目的は、直流電源
と、インバータ装置を備え、停電時には前記直流電源よ
り前記インバータ装置を介してエレベータ駆動用誘導電
動機に給電する停電時の交流エレベータ運転制御装置に
おいて、停電時には所定方向の運転指令を発する出力手
段を具備することにより達成される。
The above object is to provide an AC elevator operation control device at the time of a power failure, which is provided with a DC power supply and an inverter device, and supplies power from the DC power supply to the elevator driving induction motor through the inverter device at the time of power failure. In the above, it is achieved by providing an output means for issuing an operation command in a predetermined direction at the time of power failure.

【0008】[0008]

【作用】停電時における所定の方向を停電前のエレベー
タの走行方向に対し、逆方向とすることにより最上階及
び最下階のレベルを過ぎて停止した場合においても救出
運転は可能となる。
By operating the predetermined direction at the time of power failure in the opposite direction to the traveling direction of the elevator before the power failure, the rescue operation becomes possible even when the vehicle stops after passing the levels of the top floor and the bottom floor.

【0009】[0009]

【実施例】本発明の実施例を図に基づき説明する。Embodiments of the present invention will be described with reference to the drawings.

【0010】図1は本発明の停電時の交流エレベータ運
転制御装置の一実施例を示すブロック図である。図1に
おいて、トラクションマシンTMに直結された三相誘導
電動機IMは、常時は常用電源RSTから制御装置CP
を介して電力の供給をうけている。トラクションマシン
TMにはロープを介して一方に乗りかごFが、他方には
カウンタウエイトWが吊るしてある。ところで、常用電
源RSTが停電すると、三相誘導電動機IMには直流電
源EB(バッテリ等)から直流を交流に変換するインバ
ータ装置INVを介して給電するようになっている。イ
ンバータ装置INVは、6つのトランジスタから構成さ
れており、ゲート電流供給回路GDからの出力電流が、
所定の順序で各トランジスタのゲートに供給されると、
インバータ装置INVから三相交流電流が出力される。
これが三相誘導電動機IMの一時巻線に流れ、回転磁界
を生じさせることによって停電時には三相誘導電動機I
Mは正逆いずれかの方向に回転し、負荷であるエレベー
タを上昇または下降運転させる。また、ゲート電流救急
回路GDからの出力電流の所定の順序は、中央処理装置
CPUで指定される方向性に従って決められる。
FIG. 1 is a block diagram showing an embodiment of an AC elevator operation control device at the time of power failure of the present invention. In FIG. 1, the three-phase induction motor IM directly connected to the traction machine TM is normally connected to the control device CP from the regular power supply RST.
Power is supplied via. A car F is hung on one side of the traction machine TM via a rope, and a counterweight W is hung on the other side. By the way, when the regular power supply RST fails, the three-phase induction motor IM is supplied with power from the DC power supply EB (battery or the like) through the inverter device INV that converts DC into AC. The inverter device INV is composed of six transistors, and the output current from the gate current supply circuit GD is
When supplied to the gate of each transistor in a predetermined order,
A three-phase alternating current is output from the inverter device INV.
This flows in the temporary winding of the three-phase induction motor IM to generate a rotating magnetic field, so that the three-phase induction motor I
M rotates in either forward or reverse direction to drive the elevator, which is a load, up or down. Further, the predetermined order of the output currents from the gate current emergency circuit GD is determined according to the directionality designated by the central processing unit CPU.

【0011】いま、エレベータ運転中に何らかの原因で
常用電源RSTが停電すると、エレベータは停止すると
ともに、無電圧検出リレーSAがそれを検出してオフ
し、図示してない回路で非常運転リレーSB(図示省
略)がオンする。このため、図示してない回路で中央処
理装置CPUがオンし、既設エレベータの安全を確認の
上、所定の方向の運転指令を発する。運転指令を受けた
ゲート電流供給回路GDは、運転方向に三相誘導電動機
IMを回転させるインバータ出力電流を得られるよう、
インバータ装置INVの各トランジスタにゲート電流を
供給する。それから一定時間経過すると、図示してない
回路でインバータ装置INV駆動用リレー10T(図示
省略)がオンし、その接点10T1が閉路するのでイン
バータ装置INVに直流電源が供給される。そしてイン
バータ装置INVの出力電流を受けて、三相誘導電動機
IMは乗りかごFは所定の方向に回転を始める。
Now, if the regular power supply RST fails for some reason during elevator operation, the elevator will stop, and the no-voltage detection relay SA will detect it and turn off, and the emergency operation relay SB ( (Not shown) turns on. Therefore, the central processing unit CPU is turned on by a circuit (not shown), and after confirming the safety of the existing elevator, an operation command in a predetermined direction is issued. The gate current supply circuit GD that has received the operation command obtains an inverter output current that rotates the three-phase induction motor IM in the operation direction.
A gate current is supplied to each transistor of the inverter device INV. After a lapse of a certain time, a relay (not shown) for driving the inverter INV is turned on by a circuit (not shown), and its contact 10T1 is closed, so that DC power is supplied to the inverter INV. Then, in response to the output current of the inverter device INV, the car F of the three-phase induction motor IM starts rotating in a predetermined direction.

【0012】ところで、救出運転における上記所定の方
向を上昇方向とした場合、最上階付近で上昇方向に運転
中に停電したら停電後のかごの滑りによりかご停止位置
が最上階のレベルを過ぎる場合がある。このときに上昇
方向に運転すると端階安全装置等が動作し、救出運転が
できなくなる。又救出運転における上記所定の方向を下
降方向とした場合、最下階付近で下降方向に運転中に停
電したら停電後のかごの滑りによりかご停止位置が最下
階のレベルを過ぎる場合がある。このときに下降方向に
運転すると端階安全装置等が動作し、救出運転ができな
くなる。
[0012] By the way, when the above predetermined direction in the rescue operation is set to the ascending direction, if a power failure occurs during operation in the ascending direction near the top floor, the car stop position may exceed the level of the top floor due to car slippage after the power failure. is there. At this time, if driving in the ascending direction, the end-floor safety device operates and rescue operation cannot be performed. Further, when the predetermined direction in the rescue operation is set to the descending direction, if there is a power failure during operation in the descending direction near the lowermost floor, the car stop position may pass the level of the lowermost floor due to the sliding of the car after the power failure. At this time, if the vehicle is driven in the descending direction, the end-floor safety device operates and rescue operation cannot be performed.

【0013】また、救出運転ができないだけでなく、端
階安全装置が動作してしまうので常用電源復電時におけ
るエレベータの自動復帰も不可能となる。
Further, not only the rescue operation cannot be performed, but also the end-floor safety device operates, so that it is also impossible to automatically restore the elevator when the power supply is restored.

【0014】そこで、かご停止位置が最上階のレベルを
過ぎた場合は停電前のエレベータの走行方向は上昇方向
であると考えられるので、停電前のエレベータの走行方
向を、ロータリーエンコーダーRE、及び方向検出器H
Kにより検出し、メモリーMRに記憶させる。そして、
停電となり直流電源EBよりインバータ装置INV、及
び制御装置SSに給電されると、メモリーに記憶されて
いた停電前のエレベータの走行方向を読み出し、該停電
前のエレベータの走行方向とは逆の方向に運転する。
Therefore, when the car stop position exceeds the level of the top floor, it is considered that the traveling direction of the elevator before the power failure is the upward direction. Therefore, the traveling direction of the elevator before the power failure is determined by the rotary encoder RE and the direction. Detector H
It is detected by K and stored in the memory MR. And
When a power failure occurs and power is supplied from the DC power supply EB to the inverter device INV and the control device SS, the traveling direction of the elevator before the power failure stored in the memory is read out, and the direction of travel of the elevator before the power failure is reversed. drive.

【0015】ここで、メモリーの内容を記憶させておく
ためのメモリーの電源は、専用のバッテリーを用いる。
または直流電源EBにより作られる電圧であってもよ
い。または常用電源により蓄えられたコンデンサーの電
圧であってもよい。また停電前のエレベータの走行方向
を記憶する手段はメモリーリレー等機械的に記憶する方
法であってもよい。
A dedicated battery is used as the power source of the memory for storing the contents of the memory.
Alternatively, it may be a voltage generated by the DC power supply EB. Alternatively, it may be the voltage of the capacitor stored by the regular power source. Further, the means for storing the traveling direction of the elevator before the power failure may be a method of mechanically storing such as a memory relay.

【0016】なお、停電時における所定の方向が重負荷
方向であった場合等、何らかの理由で所定の方向に対し
てかごが動かない場合は、逆方向へ指令を出しエレベー
タを運転させる。
If the car does not move in the predetermined direction for some reason, such as when the predetermined direction is a heavy load direction during a power failure, a command is issued in the opposite direction to operate the elevator.

【0017】[0017]

【発明の効果】本発明によれば停電前のエレベータの走
行方向を記憶しておき、該停電前のエレベータの走行方
向に対し、逆方向とすることにより、最上階または最下
階のレベルを過ぎて停止した場合においても救出運転が
可能となるエレベータとすることができる。
According to the present invention, the traveling direction of the elevator before the power failure is stored and is set in the opposite direction to the traveling direction of the elevator before the power failure so that the level of the uppermost floor or the lowermost floor is set. The elevator can be used for rescue operation even if the elevator stops after passing.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の停電時の交流エレベータ運転制御装置
の一実施例を示すブロック図である。
FIG. 1 is a block diagram showing an embodiment of an AC elevator operation control device during a power failure of the present invention.

【符号の説明】[Explanation of symbols]

RST 常用電源 EB 直流電源 INV インバータ装置 GD ゲート電流供給回路 CPU 中央処理装置 DVC 運転回路 DRC 運転方向反転回路 STC 運転停止回路 IM 三相誘導電動機 TM トラクションマシン F 乗りかご W カウンタウエイト SA 無電圧検出リレー 10T インバータ装置駆動用リレー HK 方向検出器 MR メモリーリレー SS 制御装置 RST Regular power supply EB DC power supply INV Inverter device GD Gate current supply circuit CPU CPU Central processing unit DVC Operating circuit DRC Operating direction reversing circuit STC Operation stop circuit IM Three-phase induction motor TM Traction machine F Riding car W Counterweight SA No-voltage detection relay 10T Inverter drive relay HK Direction detector MR Memory relay SS controller

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 直流電源と、インバータ装置を備え、停
電時には前記直流電源より前記インバータ装置を介して
エレベータ駆動用誘導電動機に給電する停電時の交流エ
レベータ運転制御装置において、停電時には所定方向の
運転指令を発する出力手段を具備していることを特徴と
する停電時の交流エレベータ運転制御装置。
1. An AC elevator operation control device at the time of a power failure, which comprises a DC power supply and an inverter device, and supplies power from the DC power supply to the elevator drive induction motor through the inverter device at the time of the power failure, and operates in a predetermined direction during the power failure. An alternating current elevator operation control device at the time of a power failure, which is equipped with an output means for issuing a command.
【請求項2】 前述した所定の方向とは、停電前のエレ
ベータの走行方向を記憶しておき、該停電前のエレベー
タの走行方向に対し、逆方向とすることを特徴とする請
求項1に記載の停電時の交流エレベータ運転制御装置。
2. The above-mentioned predetermined direction is stored as a traveling direction of the elevator before the power failure, and is set in a direction opposite to the traveling direction of the elevator before the power failure. AC elevator operation control device at the time of power failure described.
JP6305107A 1994-12-08 1994-12-08 Ac elevator operation control device at power failure time Pending JPH08157161A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6305107A JPH08157161A (en) 1994-12-08 1994-12-08 Ac elevator operation control device at power failure time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6305107A JPH08157161A (en) 1994-12-08 1994-12-08 Ac elevator operation control device at power failure time

Publications (1)

Publication Number Publication Date
JPH08157161A true JPH08157161A (en) 1996-06-18

Family

ID=17941190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6305107A Pending JPH08157161A (en) 1994-12-08 1994-12-08 Ac elevator operation control device at power failure time

Country Status (1)

Country Link
JP (1) JPH08157161A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002029670A (en) * 2000-07-11 2002-01-29 Mitsubishi Electric Corp Control device for elevator
EP2102962A2 (en) * 2006-12-14 2009-09-23 Otis Elevator Company Elevator drive system including rescue operation circuit
CN102381602A (en) * 2011-07-04 2012-03-21 上海微频莱机电科技有限公司 Slow descending device of lifting machine
CN105517933A (en) * 2013-09-05 2016-04-20 通力股份公司 Elevator installation and a method for controlling elevators
CN107500065A (en) * 2017-10-17 2017-12-22 四川泰升液压电梯制造有限公司 A kind of automatic disposal device of hydraulic elevator power failure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002029670A (en) * 2000-07-11 2002-01-29 Mitsubishi Electric Corp Control device for elevator
JP4635303B2 (en) * 2000-07-11 2011-02-23 三菱電機株式会社 Elevator control device
EP2102962A2 (en) * 2006-12-14 2009-09-23 Otis Elevator Company Elevator drive system including rescue operation circuit
EP2102962A4 (en) * 2006-12-14 2013-05-15 Otis Elevator Co Elevator drive system including rescue operation circuit
CN102381602A (en) * 2011-07-04 2012-03-21 上海微频莱机电科技有限公司 Slow descending device of lifting machine
CN105517933A (en) * 2013-09-05 2016-04-20 通力股份公司 Elevator installation and a method for controlling elevators
CN105517933B (en) * 2013-09-05 2017-07-18 通力股份公司 Lift appliance and the method for controlling elevator
CN107500065A (en) * 2017-10-17 2017-12-22 四川泰升液压电梯制造有限公司 A kind of automatic disposal device of hydraulic elevator power failure
CN107500065B (en) * 2017-10-17 2024-01-19 四川迪斯卡电梯制造有限公司 Automatic power failure relieving device for hydraulic elevator

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