JPH0570047A - Control device for ac elevator - Google Patents

Control device for ac elevator

Info

Publication number
JPH0570047A
JPH0570047A JP3236123A JP23612391A JPH0570047A JP H0570047 A JPH0570047 A JP H0570047A JP 3236123 A JP3236123 A JP 3236123A JP 23612391 A JP23612391 A JP 23612391A JP H0570047 A JPH0570047 A JP H0570047A
Authority
JP
Japan
Prior art keywords
emergency
cage
motor
landing position
car
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
JP3236123A
Other languages
Japanese (ja)
Inventor
Toru Tanahashi
徹 棚橋
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3236123A priority Critical patent/JPH0570047A/en
Publication of JPH0570047A publication Critical patent/JPH0570047A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To safely rescue passengers in an emergency such as a power stoppage by providing a control circuit operating an electromagnetic brake and stopping a cage at the landing position if the output of a current detector exceeds a preset value while the cage travels at the constant speed and the cage reaches a point at the preset distance from the landing position when a motor is driven by an emergency DC power source. CONSTITUTION:A current detector 13 detecting the input current of a motor 5 driving the cage 12 of an AC elevator and an emergency DC power source driving the motor 5 in an emergency are provided, when the motor 5 is driven by the emergency DC power source, the input current of the motor 5 driving the cage 12 is detected by the current detector 13, and the motor 5 is driven by the emergency DC power source in an emergency. When the motor 5 is driven by the emergency DC power source, if the output of the current detector 13 exceeds a preset value while the cage 12 travels at the constant speed and the cage 12 reaches a point at the preset distance from the landing position in a hoistway, an electromagnetic brake 9 is operated, and the cage 12 is stopped at the landing position by a control circuit 15.

Description

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

【0001】[0001]

【産業上の利用分野】この発明は、交流エレベータの制
御装置に関し、特に、非常時に安全に救出運転すること
ができる交流エレベータの制御装置に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an AC elevator, and more particularly to a control device for an AC elevator that can be safely rescued in an emergency.

【0002】[0002]

【従来の技術】従来例を説明する。図3は、例えば、特
公昭63-27270号公報に示された従来の交流エレベータの
制御装置を示す構成図である。同図において、1は交流
出力を発生する3相交流電源、2はダイオードD1〜D6
及びトランジスタQ1〜Q6からなり、3相交流電源1の
交流出力を直流に変換する3相全波ブリッジ回路、3は
3相全波ブリジッジ回路2の出力を平滑するコンデン
サ、4はトランジスタQ7〜Q12及びダイオードD7〜D
12からなり、3相全波ブリッジ回路2の直流出力がコン
デンサ3を介して供給されるインバータ、5はインバー
タ4の出力が供給され、図示しないエレベータのカゴを
駆動する誘導電動機、6は一端が3相全波ブリッジ回路
2及びインバータ4の正電源端子側に接続された接点、
7は正極端子が3相全波ブリッジ回路2及びインバータ
4の負電源端子側に接続され、他方の端子が接点6の他
端に接続されたバッテリ、8は誘導電動機5に設けられ
た網車、9はこの網車8の電磁ブレーキ、10は釣り合い
錘、11は一端が釣り合い錘10に接続されて網車8に巻き
かけられた索引ロープ、そして12は索引ロープ11の他端
に接続されたカゴである。なお、接点6及びバッテリ7
は非常用直流電源を構成する。
2. Description of the Related Art A conventional example will be described. FIG. 3 is a block diagram showing a conventional AC elevator control device disclosed in, for example, Japanese Patent Publication No. 63-27270. In the figure, three-phase AC power source 1 for generating an AC output, 2 diodes D 1 to D 6
And consists transistors Q 1 to Q 6, 3-phase full-wave bridge circuit for converting an AC output of the three-phase AC power supply 1 into DC, the capacitor for smoothing the output of the three-phase full-wave Burijijji circuit 2 3, 4, transistor Q 7 to Q 12 and diode D 7 to D
The inverter 5 is provided with the DC output of the three-phase full-wave bridge circuit 2 via the capacitor 3, the output of the inverter 4 is supplied to the inverter 5, the induction motor for driving the elevator car (not shown), and 6 is one end. A contact connected to the positive power supply terminal side of the three-phase full-wave bridge circuit 2 and the inverter 4,
7 is a battery whose positive terminal is connected to the three-phase full-wave bridge circuit 2 and the negative power source terminal side of the inverter 4, and the other terminal is connected to the other end of the contact 6, and 8 is a net wheel installed in the induction motor 5. , 9 is an electromagnetic brake of the net wheel 8, 10 is a counterweight, 11 is an index rope which is connected to the counterweight 10 at one end and is wound around the net wheel 8, and 12 is connected to the other end of the index rope 11. It is a basket. The contact 6 and the battery 7
Constitutes an emergency DC power supply.

【0003】次に、従来例の動作を図3について説明す
る。通常時、3相全波ブリッジ回路2からの直流出力
は、コンデンサ3で平滑され、インバータ4により3相
電圧に変換される。通常運転の力行時は、誘導電動機5
の端子電圧と周波数との比が一定にされつつインバータ
4の周波数が漸次増大されて誘導電動機5の力行トルク
が制御される。
Next, the operation of the conventional example will be described with reference to FIG. Normally, the DC output from the three-phase full-wave bridge circuit 2 is smoothed by the capacitor 3 and converted into a three-phase voltage by the inverter 4. Induction motor 5 during power running in normal operation
The frequency of the inverter 4 is gradually increased and the power running torque of the induction motor 5 is controlled while the ratio of the terminal voltage to the frequency is constant.

【0004】通常運転の制動時には、誘導電動機5の端
子電圧と周波数との比が一定にされつつインバータ4の
周波数が漸次減少されて、3相全波ブリッジ回路2のト
ランジスタQ1〜Q6が3相交流電源1の位相に合わせて
導通制御され、誘導電動機5の回生電力が3相交流電源
1に返還されて、誘導電動機5の回生制動トルクが制御
される。このようにして、誘導電動機5の力行トルクと
回生制動トルクとが適切に制御されて通常時のエレベー
タの加速度制御が行われている。
[0004] During normal operation the braking, the induction ratio between the terminal voltage and frequency of the motor 5 is reduced gradually has been while the frequency of the inverter 4 constant, the transistor Q 1 to Q 6 of the three-phase full-wave bridge circuit 2 The conduction control is performed according to the phase of the three-phase AC power supply 1, the regenerative power of the induction motor 5 is returned to the three-phase AC power supply 1, and the regenerative braking torque of the induction motor 5 is controlled. In this way, the power running torque and the regenerative braking torque of the induction motor 5 are appropriately controlled, and the acceleration control of the elevator during normal operation is performed.

【0005】また、停電などの非常時には、接点6が閉
じられ、バッテリ7がインバータ4の直流電源端子に接
続されて救出運転が行われていた。すなわち、停電など
の非常時には、バッテリ7の直流出力が供給されて、誘
導電動機5に図4(a)に示すような電流が流れ、エレベ
ータは負荷に引かれる方向に運転し、図4(b)に示すよ
うにカゴ12は一定速度Cで走行する。カゴ12が一定速度
Cで走行中、図4(a)に示すように、最も近い階床の着
床位置にカゴ12を停止するために大きな減速電流IM
流れ、図4(b)に示すように、カゴ12は減速する。ま
た、救出運転の減速時の誘導電動機5の端子電圧V
Mは、(1)式で表される。
In an emergency such as a power failure, the contact 6 is closed and the battery 7 is connected to the DC power supply terminal of the inverter 4 to perform rescue operation. That is, in the event of an emergency such as a power failure, the DC output of the battery 7 is supplied, a current as shown in FIG. 4 (a) flows through the induction motor 5, and the elevator operates in the direction of being pulled by the load. The basket 12 runs at a constant speed C as shown in FIG. While the car 12 is traveling at a constant speed C, a large deceleration current I M flows to stop the car 12 at the nearest floor landing position, as shown in FIG. 4 (a), and as shown in FIG. 4 (b). As shown, the car 12 slows down. In addition, the terminal voltage V of the induction motor 5 during deceleration of the rescue operation
M is expressed by equation (1).

【0006】V≒IM[Rs+Rr(ω/ωs)]…(1)V M ≈I M [R s + R r (ω / ω s )] (1)

【0007】但し、(1)式において、Rsは誘導電動機
5のステータの抵抗値、Rrは誘導電動機5のロータの
抵抗値、ωはインバータ4の出力周波数、ωsはインバ
ータ4のすべり周波数を示す。また、誘導電動機5の端
子電圧VMは、インバータ4のトランジスタQ7〜Q12
ダイオードD7〜D12における電圧降下を無視すると、
バッテリ7の端子電圧VDよりも高くなることはないの
で、(2)式が成り立つ。
However, in the equation (1), R s is the resistance value of the stator of the induction motor 5, R r is the resistance value of the rotor of the induction motor 5, ω is the output frequency of the inverter 4, and ω s is the slip of the inverter 4. Indicates the frequency. Further, the terminal voltage V M of the induction motor 5 can be calculated by ignoring the voltage drop in the transistors Q 7 to Q 12 and the diodes D 7 to D 12 of the inverter 4.
Since it does not become higher than the terminal voltage V D of the battery 7, the formula (2) holds.

【0008】21/2≦V/2…(2)2 1/2 V M ≤V D / 2 (2)

【0009】従って、(1)式及び(2)式から、誘導電動
機5に流れる減速電流IMは(3)式に示すように制限さ
れる。
Therefore, from the expressions (1) and (2), the deceleration current I M flowing through the induction motor 5 is limited as shown in the expression (3).

【0010】 I≦VD/[2・21/2(Rs+Rr(ω/ωs))]…(3)I M ≦ V D / [2 · 2 1/2 (R s + R r (ω / ω s ))] ... (3)

【0011】[0011]

【発明が解決しようとする課題】従来の交流エレベータ
の制御装置は上述したように構成され、救出運転の減速
時には、誘導電動機5に(3)式で制限される減速電流I
Mしか流れない。しかし、カゴ12内の負荷が重いと(重負
荷)、カゴ12が着床位置に停止するために必要な減速電
流は(3)式で制限される減速電流IMよりも大きいの
で、着床位置を目標として減速するようにすると、カゴ
12は充分に減速できずに着床位置を大幅に行き過ぎると
いう問題点があった。
The conventional AC elevator control device is constructed as described above, and the deceleration current I limited by the formula (3) to the induction motor 5 during deceleration during the rescue operation.
Only M flows. However, when the load in the car 12 is heavy (heavy load), the deceleration current required for the car 12 to stop at the landing position is larger than the deceleration current I M limited by the formula (3), so If you try to decelerate with the position as the target,
There was a problem that 12 could not slow down sufficiently and went too far to the landing position.

【0012】この発明は、このような問題点を解決する
ためになされたもので、停電などの非常時に、カゴ内の
負荷が重くてもカゴを着床位置に停止させ、乗客を安全
に救出することができる交流エレベータの制御装置を得
ることを目的とする。
The present invention has been made in order to solve such a problem. In an emergency such as a power failure, the car is stopped at the landing position even if the load in the car is heavy, and the passengers are safely rescued. It is an object of the present invention to obtain a control device for an AC elevator that can do the work.

【0013】[0013]

【課題を解決するための手段】この発明に係る交流エレ
ベータの制御装置は、交流エレベータのカゴを駆動する
電動機の入力電流を検出する電流検出器、非常時に上記
電動機を駆動するための非常用直流電源、上記非常用直
流電源によって上記電動機が駆動されている場合に、カ
ゴが一定速度で走行中の上記電流検出器の出力が所定値
を越え、上記カゴが昇降路内の着床位置から所定距離に
ある位置点に到達したときに、電磁ブレーキを作動して
上記カゴを着床位置に停止する制御回路を備えたもので
ある。
An AC elevator control apparatus according to the present invention is a current detector for detecting an input current of an electric motor for driving a basket of an AC elevator, and an emergency DC for driving the electric motor in an emergency. When the electric motor is driven by the power supply and the emergency DC power supply, the output of the current detector when the car is traveling at a constant speed exceeds a predetermined value, and the car is predetermined from the landing position in the hoistway. When a position point at a distance is reached, an electromagnetic brake is operated to stop the car at the landing position.

【0014】[0014]

【作用】この発明においては、電流検出器により交流エ
レベータのカゴを駆動する電動機の入力電流が検出さ
れ、非常時に非常用直流電源により上記電動機が駆動さ
れる。非常用直流電源により上記電動機が駆動されてい
る場合に、制御回路により、上記カゴが一定速度で走行
中の上記電流検出器の出力が所定値を越え、上記カゴが
昇降路内の着床位置から所定距離にある位置点に到達し
たときに、電磁ブレーキが作動されて上記カゴが着床位
置に停止する。
In the present invention, the current detector detects the input current of the electric motor for driving the basket of the AC elevator, and the emergency DC power supply drives the electric motor in an emergency. When the electric motor is driven by the emergency DC power supply, the output of the current detector exceeds a predetermined value while the car is traveling at a constant speed by the control circuit, and the car is in the landing position in the hoistway. When a position point located at a predetermined distance from is reached, the electromagnetic brake is activated and the basket stops at the landing position.

【0015】[0015]

【実施例】以下、この発明の一実施例を図について説明
する。図1は、この発明の一実施例を示す構成図であ
る。同図において、1〜12は図4に示したもの同様のも
のであり、13はインバータ4と誘導電動機5との間に接
続されて誘導電動機5の入力電流を検出する電流検出
器、14は誘導電動機5と網車8との間に設けられ、誘導
電動機5の回転速度を検出する速度検出器、そして15は
3相全波ブリッジ回路2とインバータ4と電磁ブレーキ
9と電流検出器13と速度検出器14とに接続され、マイク
ロコンピュータから構成される制御回路である。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, 1 to 12 are the same as those shown in FIG. 4, 13 is a current detector connected between the inverter 4 and the induction motor 5 to detect the input current of the induction motor 5, and 14 is a current detector. A speed detector, which is provided between the induction motor 5 and the sheave 8, detects the rotational speed of the induction motor 5, and 15 is a three-phase full-wave bridge circuit 2, an inverter 4, an electromagnetic brake 9, and a current detector 13. The control circuit is connected to the speed detector 14 and includes a microcomputer.

【0016】以下、図1の非常時の動作を図4のフロー
チャートに基づいて説明する。カゴ12の昇降路内には、
各階床に対応して、通常、着床位置の他にリレベルゾー
ンやドアゾーンを検出するための位置点が着床位置から
所定距離の所に設けられている。非常時には、この位置
点を利用してカゴ12を停止させる。
The emergency operation of FIG. 1 will be described below with reference to the flowchart of FIG. In the hoistway of the basket 12,
Corresponding to each floor, a position point for detecting a relevel zone and a door zone is usually provided at a predetermined distance from the landing position in addition to the landing position. In an emergency, the position 12 is used to stop the car 12.

【0017】即ち、ステップS1において、制御回路15
は、速度検出器14の出力からカゴ12が一定速度で走行
中、電流検出器13により検出された誘導電動機5の入力
電流が所定値以下であるか否か判断し、所定値以下と判
断した場合(YESの場合)には、ステップS2に進む。ス
テップS2において、制御回路15は、カゴ12が最も近い
階床の着床位置に到達するまで3相全波ブリッジ回路2
及びインバータ4を制御してカゴ12を減速する。そし
て、ステップS3において、制御回路15はカゴ12が着床
位置に到達したか否か判断し、到達したと判断した場合
(YESの場合)に、ステップS4に進む。ステップS4に
おいて、制御回路15は、電磁ブレーキ9を作動して網車
8を制御し、カゴ12を停止する。
That is, in step S1, the control circuit 15
Judges whether the input current of the induction motor 5 detected by the current detector 13 is less than or equal to a predetermined value while the car 12 is traveling at a constant speed from the output of the speed detector 14, and determines that the input current is less than or equal to the predetermined value. If (YES), the process proceeds to step S2. In step S2, the control circuit 15 controls the three-phase full-wave bridge circuit 2 until the car 12 reaches the nearest floor landing position.
And the inverter 12 is controlled to decelerate the car 12. Then, in step S3, the control circuit 15 determines whether or not the basket 12 has reached the landing position, and when it determines that it has arrived.
If (YES), the process proceeds to step S4. In step S4, the control circuit 15 operates the electromagnetic brake 9 to control the sheave 8 and stop the basket 12.

【0018】また、ステップS1において、制御回路15
は、電流検出器13により検出された誘導電動機5の入力
電流が所定値を越えていると判断した場合(NOの場合)、
即ち重負荷の場合には、ステップS5に進む。ステップ
S5において、制御回路15は、カゴ12が上記位置点に到
達したか否か判断し、到達したと判断した場合(YESの場
合)には、ステップS4に進み、上述したようにカゴ12
を停止する。
Further, in step S1, the control circuit 15
When it is determined that the input current of the induction motor 5 detected by the current detector 13 exceeds a predetermined value (in the case of NO),
That is, when the load is heavy, the process proceeds to step S5. In step S5, the control circuit 15 determines whether or not the car 12 has reached the position point. When it is determined that the car 12 has reached the position point (in the case of YES), the process proceeds to step S4 and, as described above, the car 12
To stop.

【0019】また、ステップS3において、制御回路15
は、カゴ12が着床位置に到達していないと判断した場合
(NOの場合)には、動作を終了する。また、ステップS5
において、制御回路15はカゴ12が位置点に到達していな
いと判断した場合(NOの場合)には、動作を終了する。
In step S3, the control circuit 15
Is determined that the basket 12 has not reached the landing position.
If (NO), the operation ends. Also, step S5
In, when the control circuit 15 determines that the basket 12 has not reached the position point (in the case of NO), the operation ends.

【0020】なお、ステップS4において、制御回路15
が電磁ブレーキ9を作動してから、カゴ12は多少動く
が、着床位置近辺に停止することができる。
In step S4, the control circuit 15
The car 12 moves a little after the electromagnetic brake 9 is actuated, but it can be stopped near the landing position.

【0021】[0021]

【発明の効果】この発明は、以上説明したとおり、交流
エレベータのカゴを駆動する電動機の入力電流を検出す
る電流検出器と、非常時に上記電動機を駆動するための
非常用直流電源と、上記非常用直流電源によって上記電
動機が駆動されている場合に、カゴが一定速度で走行中
の上記電流検出器の出力が所定値を越え、上記カゴが昇
降路内の着床位置から所定距離にある位置点に到達した
ときに、電磁ブレーキを作動して上記カゴを着床位置に
停止する制御回路とを備えたことによって、停電などの
非常時に、カゴ内の負荷が重くてもカゴを着床位置近辺
に停止させ、乗客を安全に救出することができるという
効果を奏する。
As described above, the present invention provides a current detector for detecting an input current of an electric motor for driving a car of an AC elevator, an emergency DC power supply for driving the electric motor in an emergency, and the emergency A position where the output of the current detector exceeds a predetermined value while the car is traveling at a constant speed when the electric motor is driven by the DC power supply for use, and the car is at a predetermined distance from the landing position in the hoistway. When the point is reached, the electromagnetic brake is activated to stop the car at the landing position. It has the effect of being able to stop nearby and safely rescue passengers.

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

【図1】この発明の一実施例を示す構成図である。FIG. 1 is a configuration diagram showing an embodiment of the present invention.

【図2】この発明の一実施例の動作を説明するためのフ
ローチャートである。
FIG. 2 is a flow chart for explaining the operation of the embodiment of the present invention.

【図3】従来の交流エレベータの制御装置を示す構成図
である。
FIG. 3 is a configuration diagram showing a conventional AC elevator control device.

【図4】従来の交流エレベータの制御装置の課題点を説
明するための波形図である。
FIG. 4 is a waveform diagram for explaining problems of a conventional AC elevator control device.

【符号の説明】[Explanation of symbols]

5 誘導電動機 6 接点 7 バッテリ 9 電磁ブレーキ 12 カゴ 13 電流検出器 15 制御回路 5 Induction motor 6 Contact 7 Battery 9 Electromagnetic brake 12 Basket 13 Current detector 15 Control circuit

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 交流エレベータのカゴを駆動する電動機
の入力電流を検出する電流検出器、 非常時に上記電動機を駆動するための非常用直流電源、 上記非常用直流電源によって上記電動機が駆動されてい
る場合に、上記カゴが一定速度で走行中の上記電流検出
器の出力が所定値を越え、上記カゴが昇降路内の着床位
置から所定距離にある位置点に到達したときに、電磁ブ
レーキを作動して上記カゴを着床位置に停止する制御回
路を備えたことを特徴とする交流エレベータの制御装
置。
1. A current detector for detecting an input current of an electric motor for driving a basket of an AC elevator, an emergency DC power supply for driving the electric motor in an emergency, and the electric motor being driven by the emergency DC power supply. In this case, when the output of the current detector while the car is traveling at a constant speed exceeds a predetermined value and the car reaches a position point at a predetermined distance from the landing position in the hoistway, the electromagnetic brake is activated. A control device for an AC elevator, comprising a control circuit that operates to stop the basket at a landing position.
JP3236123A 1991-09-17 1991-09-17 Control device for ac elevator Pending JPH0570047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3236123A JPH0570047A (en) 1991-09-17 1991-09-17 Control device for ac elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3236123A JPH0570047A (en) 1991-09-17 1991-09-17 Control device for ac elevator

Publications (1)

Publication Number Publication Date
JPH0570047A true JPH0570047A (en) 1993-03-23

Family

ID=16996096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3236123A Pending JPH0570047A (en) 1991-09-17 1991-09-17 Control device for ac elevator

Country Status (1)

Country Link
JP (1) JPH0570047A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6938733B2 (en) * 2000-03-31 2005-09-06 Inventio Ag Emergency power supply device for lift systems
JP2014040320A (en) * 2012-08-24 2014-03-06 Hitachi Ltd Safety device of elevator and operation method using the same
CN112850407A (en) * 2021-01-25 2021-05-28 广东寰宇电子科技股份有限公司 Method and system for controlling elevator car to move under emergency condition of elevator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6938733B2 (en) * 2000-03-31 2005-09-06 Inventio Ag Emergency power supply device for lift systems
JP2014040320A (en) * 2012-08-24 2014-03-06 Hitachi Ltd Safety device of elevator and operation method using the same
CN112850407A (en) * 2021-01-25 2021-05-28 广东寰宇电子科技股份有限公司 Method and system for controlling elevator car to move under emergency condition of elevator
CN112850407B (en) * 2021-01-25 2023-01-06 广东寰宇电子科技股份有限公司 Method and system for controlling elevator car to move under emergency condition of elevator

Similar Documents

Publication Publication Date Title
JP3338680B2 (en) Elevator rescue operation control method during power outage
CN108946369B (en) Method for performing manual driving in elevator after main power supply is turned off
JP3023335B2 (en) Elevator emergency operation control device and control method
JP4964903B2 (en) Elevator equipment
JPH07157211A (en) Brake device for elevator
JPS6219351B2 (en)
JP2622398B2 (en) Elevator control device
WO2007132523A1 (en) Control device for elevator
JP3144640B2 (en) Control method and device for hoisting motor
JPH092753A (en) Elevator control device
CN101124139A (en) Elevator apparatus
JPS638033B2 (en)
KR960003012B1 (en) Elevator control device
JPH0570047A (en) Control device for ac elevator
US4661757A (en) Controller for AC elevator
JPS6246474B2 (en)
JP2014009041A (en) Elevator control device
JP3260071B2 (en) AC elevator control device
JP2001240335A (en) Operation device of elevator in service interruption
JP2001253650A (en) Controller of elevator
JPH08157161A (en) Ac elevator operation control device at power failure time
KR100259510B1 (en) Elevator control apparatus and method for coping with breaking down
JP2002046949A (en) Landing controller for home elevator
JPH0240587B2 (en)
JPH04313582A (en) Elevator adjusting device