JPS5950591B2 - AC elevator re-flooring control device - Google Patents
AC elevator re-flooring control deviceInfo
- Publication number
- JPS5950591B2 JPS5950591B2 JP51108065A JP10806576A JPS5950591B2 JP S5950591 B2 JPS5950591 B2 JP S5950591B2 JP 51108065 A JP51108065 A JP 51108065A JP 10806576 A JP10806576 A JP 10806576A JP S5950591 B2 JPS5950591 B2 JP S5950591B2
- Authority
- JP
- Japan
- Prior art keywords
- car
- speed
- floor
- error range
- control 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.)
- Expired
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- Elevator Control (AREA)
Description
【発明の詳細な説明】
この発明は停止したエレベータのかごを再床合せする装
置の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION This invention relates to an improvement in a device for re-aligning a stopped elevator car.
従来の交流エレベータでは、制御装置の変動、かご内負
荷の変動等により、かごが目的階に停止したとき着床誤
差範囲内になければ、位置検出装置の働きにより、かご
を再起動するいわゆる再床合せ動作を行なう。In conventional AC elevators, if the car is not within the landing error range when it stops at the destination floor due to fluctuations in the control device, fluctuations in the load inside the car, etc., the position detection device restarts the car. Perform the floor alignment operation.
床合せ速度走行が可能な低速巻線を持つ多段迷電動機や
、走行中速度帰還制御を行う交流エレベータにおいては
、床合せ速度にて微速走行し、着床誤差範囲内に停止さ
せることができる。Multi-stage motors with low-speed windings that can run at floor-matching speeds and AC elevators that perform speed feedback control during running can run at very low speeds at floor-matching speeds and stop within the landing error range.
しかし、これは、多段速度電動機又は速度帰還制御装置
を使用するため高価である。However, this is expensive due to the use of multi-speed motors or speed feedback controllers.
そこで、これを安価に構成するため、床合せ速度走行用
巻線を持たない単速度誘導電動機を使用し、この電動機
を抵抗起動法により起動させ、起動後一定時限にて電動
機への給電を断ち、同時に電磁ブレーキにより電動機の
回転子を抑制してかごを停止させ、再度位置検出装置で
かご位置を検出し、かごが着床範囲になければ、上記起
動、停止を繰り返して着床誤差範囲内に停止させるよう
にしていた。Therefore, in order to construct this at a low cost, we used a single-speed induction motor that does not have a winding for running at the matching speed, started this motor using the resistance starting method, and cut off the power supply to the motor for a certain period of time after starting. At the same time, the rotor of the electric motor is suppressed by the electromagnetic brake to stop the car, the position detection device detects the car position again, and if the car is not within the landing range, the above starting and stopping process is repeated until the car is within the landing error range. I was trying to make it stop.
しかし、このように電動機を抵抗起動法により起動する
と、乗心地が悪く、またかご内の負荷、かごの運転方法
、電源電圧変動等により、起動から一定時限後のかご速
度がそれぞれ変化する。However, when the electric motor is started using the resistance starting method in this manner, the ride quality is poor, and the car speed changes after a certain period of time after starting due to the load inside the car, the car operating method, power supply voltage fluctuations, etc.
また、一回の再床合せ動作による走行距離は、着床誤差
範囲の端から端までの距離以下にしなければならないた
め、かごが目的階床の着床誤差範囲を大きく外れて停止
したときは、再床合せ動作回数が多くなり、かごが着床
誤差範囲内に入るまでの時間が長くなる。In addition, the travel distance for one re-floor alignment operation must be less than the distance from one end of the landing error range to the other, so if the car stops far outside the landing error range of the destination floor, , the number of re-flooring operations increases, and the time it takes for the car to fall within the landing error range becomes longer.
このような再床合せ動作回数の増加は、エレベータの運
転能率を下げるだけでなく、電動機の過熱による損傷等
により、エレベータ使用不能に至る場合もある。Such an increase in the number of re-flooring operations not only reduces the operating efficiency of the elevator, but also may lead to the elevator becoming unusable due to damage due to overheating of the electric motor.
この発明は上記欠点を改良するもので、単速度誘導電動
機を用いたエレベータでも、かごを目的階床の着床誤差
範囲内に短時間で停止できるようにした交流エレベータ
の再床合せ制御装置を提供することを目的とする。This invention aims to improve the above-mentioned drawbacks, and provides a re-floor alignment control device for an AC elevator, which enables the car to stop within a landing error range of the destination floor in a short time even in an elevator using a single-speed induction motor. The purpose is to provide.
以下、第１〜第３図によりこの発明の一実施例を説明す
る。An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.
第１図中、ＲｏＳ、Ｔ、ハ三相交流電源、１ａ、１ｂは
上昇時閉成する上昇用接触器接点、２ａ、２ｂは同じく
下降用接触器接点、３は起動時閉成し停止後開放する走
行接触器接点、４はサイリスタ及びダイオードにより構
成された電動機制御装置、５は単速度誘導電動機、６ａ
は電動機５に結合されたブレーキ車、６ｂはブレーキ車
６ａをばね（図示しない）の力で押圧するブレーキシュ
ー、６Ｃは付勢されるとブレーキシュー６ｂをブレーキ
車６ａから離すブレーキコイルで、−ブレーキシュー６
ｂ及びブレーキコイル６Ｃで電磁ブレーキを構成してい
る。In Figure 1, RoS, T, C three-phase AC power supply, 1a and 1b are rising contactors that close when rising, 2a and 2b are also falling contactors, and 3 is closed when starting and after stopping. 4 is a motor control device composed of a thyristor and a diode; 5 is a single-speed induction motor; 6a is a running contactor contact that opens;
6b is a brake shoe that presses the brake wheel 6a with the force of a spring (not shown); 6C is a brake coil that separates the brake shoe 6b from the brake wheel 6a when energized; - brake shoe 6
b and brake coil 6C constitute an electromagnetic brake.
７はブレーキコイル６Ｃに直流を供給する整流回路、８
は電動機５によって駆動される速度計用発電機、９は巻
上機の綱車、１０は主索で、かご１１及びつり合いおも
り１２が結合されている。7 is a rectifier circuit that supplies direct current to the brake coil 6C; 8
1 is a speedometer generator driven by an electric motor 5, 9 is a sheave of a hoisting machine, and 10 is a main rope to which a car 11 and a counterweight 12 are connected.
１３，１４はかご１１に設けられたかご位置検出スイッ
チ、１５は昇降路に設けられスイッチ１３．１４を動作
させるカム、１６は階床、１８は減速基準速度指令発生
装置、１９は演算増幅器、２０は起動パターン発生装置
、２１は切換回路、２２は点弧回路、２３は床台基準速
度発生装置、２４は増幅器、２５は増幅器２４の出力に
より動作する速度検出リレーで、２５ａはその常開接点
、２６も同じく速度検出リレーで、付勢されると上昇用
接触器接点１ａ、ｌｂ又は下降用接触器接点２ａ、２ｂ
は開放される。13 and 14 are car position detection switches provided in the car 11, 15 is a cam provided in the hoistway and operates the switches 13 and 14, 16 is a floor, 18 is a deceleration reference speed command generator, 19 is an operational amplifier, 20 is a starting pattern generator, 21 is a switching circuit, 22 is an ignition circuit, 23 is a floor base speed generator, 24 is an amplifier, 25 is a speed detection relay operated by the output of the amplifier 24, and 25a is a normally open The contact 26 is also a speed detection relay, and when energized, the rising contactor contact 1a, lb or the falling contactor contact 2a, 2b.
will be released.
次に、この実施例の動作を説明する。Next, the operation of this embodiment will be explained.
かご１１が停止中は、走行接触器接点３は開放し、ブレ
ーキシュー６０はブレーキ車６ａを押圧し、電動機５は
拘束されている。While the car 11 is stopped, the running contactor contact 3 is open, the brake shoe 60 presses the brake wheel 6a, and the electric motor 5 is restrained.
走行指令が出ると、上昇用接触器接点１ａ、１ｂ又は下
降用接触器接点２ａ、２ｂが閉成する。When a travel command is issued, the contactor contacts 1a, 1b for ascending or the contactors 2a, 2b for descending are closed.
また、接点３も閉成し、ブレーキコイル６Ｃは付勢され
、電動機５は解放される。Further, the contact 3 is also closed, the brake coil 6C is energized, and the electric motor 5 is released.
一方、起動パターン発生装置２０は起動パターンを発生
し、その出力は、切換回路２１及び点弧回路２２を介し
て制御装置４を制御し、電動機５のカ行トルクが制御さ
れて滑らかにかご１１は加速される。On the other hand, the starting pattern generator 20 generates a starting pattern, and its output controls the control device 4 via the switching circuit 21 and the ignition circuit 22, so that the running torque of the electric motor 5 is controlled and the car 11 is smoothly moved. is accelerated.
起動パターン波形は第２図の曲線ａに示される。The activation pattern waveform is shown in curve a of FIG.
かご１１が減速開始点に達すると、制御回路は、電動機
５に直流を供給する回路となる。When the car 11 reaches the deceleration starting point, the control circuit becomes a circuit that supplies direct current to the electric motor 5.
すなわち、減速基準速度指令発生装置１８の出力電圧と
速度計用発電機８の出力電圧は、演算増幅器１９にて比
較演算され、その出力は、切換回路２１及び点弧回路２
２を介して制御装置４を制御し、電動機５の直流制動ト
ルクを制御して、電動機５を電気的に停止させる。That is, the output voltage of the deceleration reference speed command generation device 18 and the output voltage of the speedometer generator 8 are compared and calculated by the operational amplifier 19, and the output is sent to the switching circuit 21 and the ignition circuit 2.
2, the control device 4 is controlled to control the DC braking torque of the electric motor 5, and the electric motor 5 is stopped electrically.
ここで、接点３は開放し、電磁ブレーキにて電動機５を
拘束し、かご１１を目的階床に停止させる。Here, the contacts 3 are opened, the electric motor 5 is restrained by the electromagnetic brake, and the car 11 is stopped at the destination floor.
このとき、かご１１が目的階床の着床誤差範囲内に停止
していれば、検出スイッチ１３，１４はカム１５によっ
て動作しており、かご１１は再起動しない。At this time, if the car 11 is stopped within the landing error range of the destination floor, the detection switches 13 and 14 are operated by the cam 15, and the car 11 is not restarted.
しかし、かごが着床誤差範囲外に停止していれば、検出
スイッチ１３．１４のいずれか一方または両方がカム１
５によって動作していないので、再床合せ指令が発せら
れる。However, if the car has stopped outside the landing error range, one or both of the detection switches 13 and 14 will
5, it is not operating, so a re-floor alignment command is issued.
これにより、接点１ａ、ｌｂ又は接点２ａ、２ｂが閉成
し、更に接点３も閉成し、電磁ブレーキを開放する。As a result, the contacts 1a and lb or the contacts 2a and 2b are closed, and the contact 3 is also closed, thereby releasing the electromagnetic brake.
そして、起動パターンを発生し、その出力は切換回路２
１及び点弧回路２２を介して制御装置４を制御して、電
動機５のカ行トルクを制御し、かご１１を滑らかに加速
する。Then, a starting pattern is generated, and its output is sent to the switching circuit 2.
1 and an ignition circuit 22 to control the running torque of the electric motor 5 and smoothly accelerate the car 11.
□床台基準速度発生装置２３の出力電圧と、速度計
用発電機８の出力電圧は増幅器２４により比較増幅され
、速度計用発電機８の出力電圧が床台基準速度発生装置
２３の出力電圧Ｅ１以上になったときリレー２５が、ま
た出力電圧す以上になったとき、リレー２６が付勢され
る。□The output voltage of the floor base reference speed generator 23 and the output voltage of the speedometer generator 8 are compared and amplified by the amplifier 24, and the output voltage of the speedometer generator 8 is the output voltage of the floor base reference speed generator 23. When the output voltage exceeds E1, the relay 25 is activated, and when the output voltage exceeds E1, the relay 26 is activated.
Ｅｔ、 Ｅ２は床台基準速度ｖ１．ｖ２に対応する電圧
である。Et and E2 are the floor platform reference speed v1. This is the voltage corresponding to v2.
かご１１が加速され、床台基準速度ｖ１以上になるとリ
レー２５が付勢され、接点２５ａが閉成し、起動パター
ン電圧は第２図の曲線すのように電圧が下がる。When the car 11 is accelerated and reaches a floor base reference speed v1 or higher, the relay 25 is energized, the contact 25a is closed, and the starting pattern voltage decreases as shown by the curve in FIG.
これにより点弧回路２２を介して、制御装置４は電動機
５の端子電圧を下げるため、電動機５のカ行トルクが下
がりかご１１の速度上昇率は第２図の曲線ｄから曲線ｅ
へ変化する。As a result, the control device 4 lowers the terminal voltage of the electric motor 5 via the ignition circuit 22, so that the running torque of the electric motor 5 decreases and the speed increase rate of the car 11 changes from the curve d to the curve e in FIG.
Changes to
そして、床台基準速度■２になると、リレー２６が付勢
され、接点１ａ、ｌｂ又は接点２ａ、２ｂが開成して電
動機５への給電が断たれ、接点３が開放され電磁ブレー
キが動作し、かご１１は減速して停止する。When the floor platform standard speed 2 is reached, the relay 26 is energized, contacts 1a and lb or contacts 2a and 2b are opened to cut off the power supply to the motor 5, and contact 3 is opened to operate the electromagnetic brake. , the car 11 decelerates and stops.
このように、かご１１の速度上昇率を曲線ｄから曲線ｅ
へ変更すると、床台基準速度ｖ２になるまでにかご１１
が走行する距離は、第２図に斜線で示されている面積に
なり、曲線ｄの場合はＳｄ、曲線ｅの場合はＳｅとなっ
て、明らかに曲線ｅの方が走行する距離は長くなる。In this way, the speed increase rate of car 11 is changed from curve d to curve e.
If you change to
The distance traveled by the vehicle is the area indicated by the diagonal lines in Figure 2, and in the case of curve d it is Sd and in the case of curve e it is Se, so clearly the distance traveled by curve e is longer. .
そのため、一回の床合せ起動により走行する距離は長く
、また床台速度は、かご１１が着床誤差範囲の端に入っ
たとき、電動機５の電源をしゃ断して電磁ブレーキを動
作させた場合、着床誤差範囲内に停止する速度にしてい
るので、床台起動回数も少なく、短時間で１的階床の着
床誤差範囲内に停止させることができる。Therefore, the distance traveled by one floor alignment start-up is long, and the floor platform speed changes when the car 11 enters the edge of the landing error range, when the power to the electric motor 5 is cut off and the electromagnetic brake is activated. Since the speed is set to stop within the landing error range, the number of times the floor platform is activated is small, and it can be stopped within the landing error range of a single floor in a short time.
上記実施例は、速度上昇率を下げるため、起動パターン
電圧を所定電圧まで下げ、点弧回路２２の発生する点弧
信号の位相角θを遅らすことにより、第３図に示されて
いるように電動機トルクを下げているが、起動パターン
電圧を零にし、電動機５への供給電圧を単相にすること
によっても、第３図のように電動機トルクを下げること
ができる。In the above embodiment, in order to reduce the speed increase rate, the starting pattern voltage is lowered to a predetermined voltage and the phase angle θ of the ignition signal generated by the ignition circuit 22 is delayed, as shown in FIG. Although the motor torque is lowered, the motor torque can also be lowered by reducing the starting pattern voltage to zero and making the voltage supplied to the motor 5 single-phase, as shown in FIG. 3.
また、速度上昇率を下げず、かご速度が床台基準速度ｖ
２に達したとき電磁ブレーキを動作させ、かご１１を停
止させる場合においても、従来の床台動作よりも床台動
作時間が短縮可能である。In addition, without reducing the speed increase rate, the car speed is set to the floor platform standard speed v
Even in the case where the electromagnetic brake is operated to stop the car 11 when the car 11 reaches 2, the operating time of the floor platform can be shorter than that of the conventional floor platform operation.
以上説明したとおりこの発明では、かごの再床合せ時か
ごが予定速度に達すると、速度上昇率を低下させた後電
磁ブレーキを作用させてかごを停止させるようにしたの
で、単速度誘導電動機を用いた安価なエレベータでも、
かごを着床誤差範囲内に短時間で停止させることができ
る。As explained above, in this invention, when the car reaches the scheduled speed when re-flooring the car, the speed increase rate is reduced and then the electromagnetic brake is applied to stop the car. Even with the cheap elevator used,
The car can be stopped within a landing error range in a short time.
また、かごが第１の所定速度に達すると、速度上昇率を
低下させ、第２の所定速度に達すると、電磁ブレーキを
作用させるようにしたので、安全性高く再床合せを行う
ことができる。In addition, when the car reaches the first predetermined speed, the speed increase rate is reduced, and when the car reaches the second predetermined speed, the electromagnetic brake is applied, making it possible to re-align the floors with high safety. .
第１図はこの発明による交流エレベータの再床合せ制御
装置の一実施例を示す構成図、第２図は第１図による起
動パターン電圧及びかご速度の特性曲線図、第３図は誘
導電動機の一相制御したときのトルク曲線図である。
ｌａ、ｌｂ・・・・・・上昇用接触器接点、２ａ、２ｂ
・・・・・・下降用接触器接点、３・・・・・・走行接
触器接点、４・・・・・・電動機制御装置、５・・・・
・・単速度誘導電動機、６ａ・・・・・・ブレーキ車、
６ｂ・・・・・・ブレーキシュー、６Ｃ・・・・・・ブ
レーキコイル、７・・・・・・整流回路、８・・・・・
・速度計用発電機、９・・・・・・綱車、１１・・・・
・・かご、１３，１４・・・・・・かご位置検出スイッ
チ、１５・・・・・・カム、２０・・・・・・起動パタ
ーン発生装置、２１・・・・・・切換回路、２２・・・
・・・点弧回路、２３・・・・・・床台基準速度発生装
置、２４・・・・・・増幅器、２５，２６・・・・・・
速度検出リレー。FIG. 1 is a block diagram showing an embodiment of an AC elevator re-flooring control device according to the present invention, FIG. 2 is a characteristic curve diagram of starting pattern voltage and car speed according to FIG. 1, and FIG. 3 is a diagram of an induction motor. FIG. 3 is a torque curve diagram when one-phase control is performed. la, lb...Rising contactor contact, 2a, 2b
...... Descending contactor contact, 3... Traveling contactor contact, 4... Motor control device, 5...
・・Single speed induction motor, 6a・・・Brake car,
6b... Brake shoe, 6C... Brake coil, 7... Rectifier circuit, 8...
・Speedometer generator, 9... Sheave, 11...
... Car, 13, 14 ... Car position detection switch, 15 ... Cam, 20 ... Starting pattern generator, 21 ... Switching circuit, 22 ...
...Ignition circuit, 23...Bed reference speed generator, 24...Amplifier, 25, 26...
Speed detection relay.
Claims (1)
停止後着床誤差範囲内にいなければ上記電動機を再起動
し、電磁ブレーキにより制動して上記かごを上記着床誤
差範囲内に停止させるように再床合せを繰り返えすもの
において、上記再床合せ時上記かごの速度が所定速度に
達したとき上記かごの速度上昇率を低下させる速度上昇
率制御回路、及び上記速度上昇率制御回路が動作した後
に上記電磁ブレーキを作用させる制動回路を備えたこと
を特徴とする交流エレベータの再床合せ制御装置。 ２ かごを単速度誘導電動機により駆動し、上記かごが
停止後着床誤差範囲内にいなければ上記電動機を再起動
し、電磁ブレーキにより制動して上記かごを上記着床誤
差範囲内に停止させるように再床合せを繰り返えすもの
において、上記再床合せ時上記かごの速度が第１の所定
速度に達したとき上記かごの速度上昇率を低下させる速
度帰還制御装置、上記かごの速度が上記第１の所定速度
よりも高い第２の所定速度に達したとき動作する速度検
出装置、及び上記速度検出装置が動作したとき上記電磁
ブレーキを作用させる制動回路を備えたことを特徴とす
る交流エレベータの再床合せ制御装置。[Claims] 1. The car is driven by a single-speed induction motor, and if the car is not within the landing error range after stopping, the motor is restarted, and the car is braked by an electromagnetic brake to cause the car to land on the floor. A speed increase rate control circuit that reduces the speed increase rate of the car when the speed of the car reaches a predetermined speed during the re-floor adjustment, in a car that can be repeatedly re-aligned so as to stop within an error range; A re-floor alignment control device for an AC elevator, comprising a braking circuit that applies the electromagnetic brake after the speed increase rate control circuit operates. 2 The car is driven by a single-speed induction motor, and if the car is not within the landing error range after stopping, the motor is restarted, and the car is braked by an electromagnetic brake to stop the car within the landing error range. A speed feedback control device that reduces the rate of increase in the speed of the car when the speed of the car reaches a first predetermined speed during the re-floor adjustment; An alternating current comprising: a speed detection device that operates when a second predetermined speed higher than the first predetermined speed is reached; and a braking circuit that applies the electromagnetic brake when the speed detection device operates. Elevator re-floor alignment control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51108065A JPS5950591B2 (en) | 1976-09-09 | 1976-09-09 | AC elevator re-flooring control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51108065A JPS5950591B2 (en) | 1976-09-09 | 1976-09-09 | AC elevator re-flooring control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5334249A JPS5334249A (en) | 1978-03-30 |
| JPS5950591B2 true JPS5950591B2 (en) | 1984-12-08 |
Family
ID=14474990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51108065A Expired JPS5950591B2 (en) | 1976-09-09 | 1976-09-09 | AC elevator re-flooring control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5950591B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531779A (en) * | 1978-08-29 | 1980-03-06 | Mitsubishi Electric Corp | Emergency operation apparatus for elevator |
-
1976
- 1976-09-09 JP JP51108065A patent/JPS5950591B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5334249A (en) | 1978-03-30 |
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