JPS6243978Y2 - - Google Patents

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Publication number
JPS6243978Y2
JPS6243978Y2 JP1982101861U JP10186182U JPS6243978Y2 JP S6243978 Y2 JPS6243978 Y2 JP S6243978Y2 JP 1982101861 U JP1982101861 U JP 1982101861U JP 10186182 U JP10186182 U JP 10186182U JP S6243978 Y2 JPS6243978 Y2 JP S6243978Y2
Authority
JP
Japan
Prior art keywords
elevator
motor
speed
electromagnetic brake
power
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.)
Expired
Application number
JP1982101861U
Other languages
Japanese (ja)
Other versions
JPS598976U (en
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 filed Critical
Priority to JP10186182U priority Critical patent/JPS598976U/en
Publication of JPS598976U publication Critical patent/JPS598976U/en
Application granted granted Critical
Publication of JPS6243978Y2 publication Critical patent/JPS6243978Y2/ja
Granted legal-status Critical Current

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Stopping Of Electric Motors (AREA)

Description

【考案の詳細な説明】 本考案はエレベーターの駆動用電動機に直流電
動機を用いたエレベーターの非常時の制御装置に
係り、特に、停電後の直流電動機の電機子回路の
制御装置に関する。
[Detailed Description of the Invention] The present invention relates to an emergency control device for an elevator using a DC motor as the driving motor of the elevator, and more particularly to a control device for the armature circuit of the DC motor after a power outage.

第1図はエレベーター駆動系の略図である。図
中乗かごCとカウンターウエイトCWはロープR
を介してシーブSに掛けられている。また、ケー
ジが上部にあるときと下部にあるときののロープ
重量差を補償するために、乗かごCとカウンター
ウエイトCWにはコンペンロープCRが吊り下げ
られており、これを安定させるためにコンペンプ
ーリCPがコンペンロープCRの上に置かれてい
る。シーブSはエレベーター駆動用直流電動機M
により駆動され、ロープRとシーブSとの摩擦力
によりトルクがケージCおよびカウンターウエイ
トCWに伝達される。また、非常停止時のブレー
キ力を与え、かつ、停止後にエレベーターを保持
する電磁ブレーキBが設けられ、これを開放する
ため電磁ブレーキコイルCOが設けられる。
FIG. 1 is a schematic diagram of the elevator drive system. In the diagram, the car C and counterweight CW are rope R.
It is hung on sheave S via. In addition, in order to compensate for the difference in rope weight between when the cage is at the top and when it is at the bottom, a compensator rope CR is suspended from the car C and the counterweight CW. Pulley CP is placed on compen rope CR. Sheave S is a DC motor M for driving elevators.
The torque is transmitted to the cage C and the counterweight CW by the frictional force between the rope R and the sheave S. Further, an electromagnetic brake B is provided to apply a braking force during an emergency stop and to hold the elevator after stopping, and an electromagnetic brake coil CO is provided to release the brake.

第2図は従来の制御系統図である。従来のエレ
ベーターの停電時自動着床装置は、乗かごCとカ
ウンターウエイトCWの重量差により生じる不平
衡トルクが静止摩擦トルクより大きい場合は、エ
レベーターを一旦停止した後、電磁ブレーキコイ
ルに給電し、不平衡トルクにより駆動トルクを与
え、エレベーターを駆動し、また不平衡トルクが
静止摩擦トルク以下の場合は、停電後も一旦停止
させず、非常電源より電磁ブレーキコイルCOに
給電し続け、停電時にエレベーター駆動系に残留
する運動エネルギーを利用し、エレベーターを駆
動することが提案されていた。しかし、不平衡ト
ルクの大きな場合には、エレベーターの速度が大
きく変化し、その結果、不平衡トルクの大きさに
より、着床位置が大きく変化する。また、平衡負
荷のときには、エレベーターを着床位置に停止さ
せるため、電磁ブレーキを制御する方法では、電
磁ブレーキの過渡的な制動性が不安定であるため
に、同様に着床誤差が大きくなる欠点があつた。
FIG. 2 is a conventional control system diagram. The conventional elevator automatic landing device during a power outage supplies power to the electromagnetic brake coil after the elevator is temporarily stopped when the unbalanced torque caused by the weight difference between the car C and the counterweight CW is larger than the static friction torque. The unbalanced torque provides a driving torque to drive the elevator.If the unbalanced torque is less than the static friction torque, the emergency power supply continues to supply power to the electromagnetic brake coil CO without stopping the elevator even after a power outage, and the elevator is operated when the unbalanced torque is less than the static friction torque. It was proposed to use the kinetic energy remaining in the drive system to drive the elevator. However, when the unbalanced torque is large, the speed of the elevator changes greatly, and as a result, the landing position changes greatly depending on the magnitude of the unbalanced torque. In addition, when the load is balanced, the method of controlling the electromagnetic brake in order to stop the elevator at the landing position has the disadvantage that the transient braking performance of the electromagnetic brake is unstable, resulting in a large landing error. It was hot.

本考案の目的は、エレベーター走行中に停電し
たとき、着床誤差の小さい位置に停止できる安定
した速度を得ることができるようにした安価なエ
レベーターの停電時の制御装置を提供することに
ある。
An object of the present invention is to provide an inexpensive control device for an elevator during a power outage, which is capable of obtaining a stable speed that allows the elevator to stop at a position with a small landing error when a power outage occurs while the elevator is running.

停電後に電磁ブレーキを開き、電気的制動をか
けずに走行させる場合は、エレベーターは走行中
の摩擦トルクだけが減速トルクとして作用する。
しかし、エレベーターが走行中はシーブに連結し
た直流電動機も回転しているため、本考案は非常
電源より直流電動機界磁コイルに給電し、直流電
動機電機子回路を可変抵抗器を介して閉路すれば
直流電動機の回転により直流電動機は発電し、可
変抵抗器の抵抗値に見合つただけのダイナミツク
ブレーキとして作用するので、不平衡トルクの大
きさと、走行位置に見合つたエレベーター速度に
より、電機子回路の抵抗値を可変とし、速度制御
を行なうことを要点とする。
If the electromagnetic brake is opened after a power outage and the elevator is run without applying electrical braking, only the friction torque during running acts as deceleration torque on the elevator.
However, when the elevator is running, the DC motor connected to the sheave is also rotating, so the present invention provides power to the DC motor field coil from the emergency power supply and closes the DC motor armature circuit via a variable resistor. As the DC motor rotates, the DC motor generates electricity and acts as a dynamic brake commensurate with the resistance value of the variable resistor, so the armature circuit is The key point is to make the resistance value variable and control the speed.

以下、本考案の一実施例を第3図から第6図に
より説明する。図中PGは速度検出発動機、A1
oは一定速度以上になると動作する速度リレ
ー、A1a1…Aoa1及びA1a2…Aoa2はそのa接点、
3はPGの出力検出装置、Na1,Na2,Na3は停電
により消磁する停電検出リレーのa接点、Nb1
b2,Nb3はそのb接点Taは停電検出後にエレベ
ーターが停止したのち動作するタイムリレーのa
接点、BPa1,BPa2は不平衡トルクが所定値以下
であることを検出する平衡負荷検出装置のa接
点、BPb1はそのb接点、3A0は所定速度で動作
する所定検出リレーのa接点、T1b…Tobはあら
かじめプログラムされた時限で順次動作するタイ
ムリレーのb接点、3…3oは速度検出装置3
により動作する速度リレー、Xbは正規着床位置
で動作する着床位置検出リレーのb接点、92は
正規減速位置で動作する減速位置検出リレーのa
接点、RAは抵抗、NCは平常時のブレーキ制御装
置、MFは直流電動機界磁コイル、1は平常時の
直流電動機界磁制御装置、2は平常時の直流電動
機電機子電流制御装置で、停電時には前記NC,
1,2はそれぞれ切離される。
An embodiment of the present invention will be described below with reference to FIGS. 3 to 6. In the figure, PG is the speed detection engine, A 1 ...
A o is a speed relay that operates when the speed exceeds a certain level, A 1a1 ...A oa1 and A 1a2 ...A oa2 are its a contacts,
3 is the PG output detection device, N a1 , N a2 , N a3 are the a contacts of the power failure detection relay that demagnetizes due to a power outage, N b1 ,
N b2 and N b3 are the b contact T a of the time relay that operates after the elevator stops after a power outage is detected.
The contacts BP a1 and BP a2 are the a contact of the balanced load detection device that detects that the unbalanced torque is below a predetermined value, BP b1 is the b contact of the device, and 3A 0 is the a contact of the predetermined detection relay that operates at a predetermined speed. , T 1b ...T ob is the b contact of a time relay that operates sequentially at a pre-programmed time limit, 3 1 ... 3 o is the speed detection device 3
92 is the contact a of the deceleration position detection relay that operates at the normal deceleration position.
The contact, RA is the resistance, NC is the brake control device in normal operation, MF is the DC motor field coil, 1 is the DC motor field control device in normal operation, 2 is the DC motor armature current control device in normal operation, and in case of power outage, the above NC,
1 and 2 are each separated.

まず、不平衡トルクが所定値以下の場合につい
て動作説明をする。この場合、平衡負荷検出装置
が動作し、BPa1が閉成している。停電により停
電検出リレーが消磁するため、エレベーターが正
規着床位置でないとき、E→Xb→BPa1→Nb1
p→Eの回路により停電後も電磁ブレーキコイ
ルCOに給電され、電磁ブレーキは動作しない。
このため、エレベーターはエレベーター駆動系に
残留する運動エネルギーにより走行を持続する。
この運動エネルギーは走行中の摩擦損失によりそ
のエネルギーを減少する。走行中の摩擦損失はエ
レベータ速度と駆動系の重量に関連するが、一般
的に小さな値であるため運動エネルギーの損失は
小さい。また、着床誤差を小さくするためには、
着床位置の手前でエレベーターの速度を十分に低
くする必要がある。正規減速位置に達したとき、
減速位置検出リレー92がONし、タイムリレー
1b2…Tob2が順次消磁するため、E→BPa2→9
2→T1b2→3→A1…→Aoの回路により、A1
oが順次励磁し抵抗RAを順次短絡する。このた
め、電機子回路抵抗が順次減少し、ダイナミツク
ブレーキが順次強められる。このときの速度特性
は第4図のようになる。正規着床位置にエレベー
ターが到達すると、着床位置検出リレーが動作し
bが開放するため、電磁ブレーキBが動作しエ
レベーターは着床位置で保持される。
First, the operation will be explained in the case where the unbalanced torque is less than or equal to a predetermined value. In this case, the balanced load detection device operates and BP a1 is closed. Since the power failure detection relay is demagnetized due to a power outage, when the elevator is not in the normal landing position, E→X b →BP a1 →N b1
Even after a power outage, power is supplied to the electromagnetic brake coil CO through the C p → E circuit, and the electromagnetic brake does not operate.
Therefore, the elevator continues to run due to the kinetic energy remaining in the elevator drive system.
This kinetic energy is reduced by friction loss during running. Frictional losses during running are related to elevator speed and drive train weight, but are generally small values, so kinetic energy losses are small. In addition, in order to reduce the implantation error,
It is necessary to reduce the elevator speed sufficiently before reaching the landing position. When the normal deceleration position is reached,
Since the deceleration position detection relay 92 turns on and the time relays T1b2 ...T ob2 are sequentially demagnetized, E→BP a2 →9
2 → T 1b2 → 3 1 → A 1 … → A 1 … by the circuit of A o
A o is sequentially excited and the resistors RA are sequentially shorted. Therefore, the armature circuit resistance gradually decreases and the dynamic brake is gradually strengthened. The speed characteristics at this time are as shown in FIG. When the elevator reaches the normal landing position, the landing position detection relay operates and X b opens, so that the electromagnetic brake B operates and the elevator is held at the landing position.

次に、不平衡トルクが静止摩擦トルク以上の場
合の動作説明をする。この場合の負荷変化と速度
の関係は第5図のようになり、不平衡トルクが大
きいほど速度は増加する。そこで、平衡負荷検出
装置の動作していない場合は、第6図のE→
BPb1→3Ap→T1b1…Tob1→A1…Ao→Eの回路に
より、所定速度になるまで、タイムリレーT1b1
…Tob1が動作し、A1…Aoが励磁されA1a2…Aoa2
により自己保持される。このとき、所定速度を小
さく設定すれば負荷の大きさに関わらず速度は一
定となるため、着床誤差も負荷に関係せず、一定
値の小さな値とすることができる。
Next, an explanation will be given of the operation when the unbalanced torque is greater than the static friction torque. The relationship between load change and speed in this case is as shown in FIG. 5, and the speed increases as the unbalanced torque increases. Therefore, if the balanced load detection device is not operating, E→
BP b1 →3A p →T 1b1 ...T ob1 →A 1 ...A o →E circuit keeps the time relay T 1b1 until the specified speed is reached.
…T ob1 operates, A 1 …A o is excited, A 1a2 …A oa2
self-maintained by At this time, if the predetermined speed is set to a small value, the speed will be constant regardless of the magnitude of the load, so the landing error can be set to a constant small value regardless of the load.

本考案によれば、エレベーター走行中に、停電
したとき、電磁ブレーキと直流電動機の界磁コイ
ルと制御回路のリレーに無停電電源より給電して
直流電動機に乗かご位置に応じた発電制御力を与
え、着床誤差の小さい位置に停止させる速度を得
るようにしたので、小容量の無停電電源設備と、
簡単な回路構成とにより、停電時における着床位
置の精度を向上させることが実現でき、停電時の
着床装置を安価に提供できる。
According to the present invention, when a power outage occurs while the elevator is running, the electromagnetic brake, the field coil of the DC motor, and the relay of the control circuit are supplied with power from the uninterruptible power supply, and the DC motor generates control power according to the car position. Since we have achieved a speed that allows the robot to stop at a position with a small landing error, a small-capacity uninterruptible power supply and
With a simple circuit configuration, it is possible to improve the accuracy of the landing position during a power outage, and it is possible to provide a landing device at a low cost during a power outage.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はエレベーター駆動系統図、第2図は従
来の制御系統図、第3図は本考案による制御系統
図、第4図は本考案による減速時の速度特性図、
第5図は負荷変化による従来の速度特性図、第6
図は本考案による制御回路図である。 B…電磁ブレーキ、Cp…電磁ブレーキコイ
ル、S…シーブ、CW…カウンターウエイト、C
…乗かご、R…ロープ、CR…コンペンロープ、
CP…コンペンローププーリー、M…直流電動
機、MF…直流電動機界磁、PG…速度検出発電
機、3…PGの出力検出装置、E…非常電源、Na
〜Na3…停電検出リレーのa接点、Nb1〜Nb3
停電検出リレーのb接点、BPa1,BPa2…平衡荷
重検出リレーのa接点、BPb1…平衡荷重検出リ
レーのb接点、Xb…正規着床位置検出リレー、
a…停電後一旦停止したのち動作するタイムリ
レー、Ap…所定速度検出リレー、T1〜To…順次
動作するタイムリレー、3〜3o…速度検出リ
レー、A1〜Ao…速度リレー、RA…抵抗。
Fig. 1 is an elevator drive system diagram, Fig. 2 is a conventional control system diagram, Fig. 3 is a control system diagram according to the present invention, and Fig. 4 is a speed characteristic diagram during deceleration according to the present invention.
Figure 5 is a conventional speed characteristic diagram due to load changes, Figure 6
The figure is a control circuit diagram according to the present invention. B...Electromagnetic brake, C p ...Electromagnetic brake coil, S...Sheave, CW...Counterweight, C
...car, R...rope, CR...compensation rope,
CP...Compensation rope pulley, M...DC motor, MF...DC motor field, PG...Speed detection generator, 3...PG output detection device, E...Emergency power supply, N a
1 ~N a3 ...A contact of power failure detection relay, N b1 ~ N b3 ...
B contact of power failure detection relay, BP a1 , BP a2 ...A contact of balance load detection relay, BP b1 ...B contact of balance load detection relay, X b ...Regular landing position detection relay,
T a ... Time relay that operates after stopping once after a power outage, A p ... Predetermined speed detection relay, T 1 - T o ... Time relay that operates sequentially, 3 1 - 3 o ... Speed detection relay, A 1 - A o ... Speed relay, RA...resistance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 乗かごを駆動する直流電動機、前記乗かごが停
止したときそれを保持する電磁ブレーキを備えた
エレベーターにおいて、無停電電源と、前記直流
電動機の放電抵抗と、前記乗かごの位置に応動し
て前記放電抵抗の値を変化させる速度指令装置と
を備え、エレベーター走行中に停電したとき前記
電磁ブレーキと前記直流電動機の界磁コイル及び
前記速度指令装置に前記無停電電源より給電して
前記直流電動機に前記乗かご位置に応じた発電制
動力を与えるよう構成したことを特徴とするエレ
ベーターの停電時の制御装置。
In an elevator equipped with a DC motor that drives a car, and an electromagnetic brake that holds the car when it stops, an uninterruptible power source, a discharge resistance of the DC motor, and a and a speed command device that changes the value of a discharge resistance, and when a power outage occurs while the elevator is running, power is supplied to the electromagnetic brake, the field coil of the DC motor, and the speed command device from the uninterruptible power supply to activate the DC motor. A control device for an elevator during a power outage, characterized in that it is configured to apply a dynamic braking force according to the car position.
JP10186182U 1982-07-07 1982-07-07 Control device for elevator power outage Granted JPS598976U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10186182U JPS598976U (en) 1982-07-07 1982-07-07 Control device for elevator power outage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10186182U JPS598976U (en) 1982-07-07 1982-07-07 Control device for elevator power outage

Publications (2)

Publication Number Publication Date
JPS598976U JPS598976U (en) 1984-01-20
JPS6243978Y2 true JPS6243978Y2 (en) 1987-11-17

Family

ID=30240355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10186182U Granted JPS598976U (en) 1982-07-07 1982-07-07 Control device for elevator power outage

Country Status (1)

Country Link
JP (1) JPS598976U (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006151536A (en) * 2004-11-26 2006-06-15 Mitsubishi Electric Corp Landing device of elevator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5054056A (en) * 1973-09-17 1975-05-13
JPS5251644A (en) * 1975-10-23 1977-04-25 Mitsubishi Electric Corp Emergency braking device for elevator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5054056A (en) * 1973-09-17 1975-05-13
JPS5251644A (en) * 1975-10-23 1977-04-25 Mitsubishi Electric Corp Emergency braking device for elevator

Also Published As

Publication number Publication date
JPS598976U (en) 1984-01-20

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