JPS627108B2

JPS627108B2 -

Info

Publication number: JPS627108B2
Application number: JP60220783A
Authority: JP
Inventors: Yasukazu Umeda; Katsuyuki Kanbara; Shintaro Tsuji; Seiichi Goto; Yoshio Myanishi
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1985-10-03
Filing date: 1985-10-03
Publication date: 1987-02-16
Also published as: JPS61106383A

Description

[Detailed description of the invention]

この発明はエレベータのかごの運転を休止させ
る装置の改良に関するものである。従来、夜間等、建物内の交通状態が閑散になつ
たとき、電力節約のため特定条件のエレベータの
かごを自動休止させることが行われてきた。例え
ば、各かごがサービスすべき乗場呼びやかご呼び
がなくなり、戸を閉めてから一定時間後に電動発
電機、かご内の照明、大部分の表示灯、制御機能
等を休止させるものである。ここで、一定時間経
過した後に休止させるのは、休止させるまでの間
に呼び発生状況を観測して呼びが殆んど発生しな
いことを確認した後休止させることにより、むや
みに休止と起動を繰り返して逆に電力を多く消費
したり、機器の寿命を縮めたりしないようにする
ためである。ここで、上記一定時間は、休止かごの「有・
無」及び休止台数に関係なく常に一定である。つ
まり休止かごが零の状態から最初のかごが休止す
るまでの時間も、既に休止かごがあつて最後のか
ごが休止するときの時間も同じであつた。ところが、エネルギ節約が時代の要求となつて
くると、昼間でもサービスをあまり落とさない程
度に状況に応じた適当な台数を自動休止すること
が行われるようになつてきた。この場合は、呼びがないから自動休止するとい
うような消極的な節電でなく、サービスは少し低
下しても休止かごを作ることが要請されている訳
で、いつたん休止させれば、サービスが相当低下
しない限り復帰させない。したがつて、サービス
すべき呼びがなくなつてから休止させるまでの時
間は短時間（例えば、乗客は当然いなくなつたと
考えられる程度の時間）でよいはずであるのに、
従来のように一定時間後に休止させていては、節
電のため運行台数を減少させようとしても、それ
までに時間が掛かり過ぎるなどの欠点がある。この発明は上記欠点を除去するもので、節電運
転を効率良く行うことができるエレベータの運転
休止装置を提供することを目的とする。以下、第１図及び第２図によりこの発明の一実
施例を説明する。図中、（＋），（−）は直流電源、０は指定休止
かご台数が零台のとき開放する零台指定リレー接
点で、上記指定は例えば人為的にスイツチを操作
することにより行われる。１ａ，１ｂ〜３ａ，３
ｂは同じく１台〜３台指定リレー接点、４は同じ
く４台指定リレー接点、１０は実際に休止してい
るかご台数が零台のとき閉成する零台休止リレー
接点で、上記休止台数の検出は容易であるので回
路は省略する。１１は同じく１台休止リレー接
点、１２ａ，１２ｂは同じく２台休止リレー接
点、１３，１４は同じく３台及び４台休止リレー
接点、２０は休止時間20秒指令リレーで、２０ａ
はその常閉接点、２０ｂは同じく常開接点、２１
は同じく休止時間３分指令リレーで、２１ａはそ
の常閉接点、２１ｂは同じく常開接点、２２は同
じく休止時間１分指令リレーで、２２ａはその常
開接点、２３ａ〜２３ｎは各階の乗場上り呼びが
登録されこれに割に当てられたとき開放する乗場
上り呼び割当リレー接点、２４ａ〜２４ｎは同じ
く乗場下り呼び割当リレー接点、２５ａ〜２５ｎ
はかご内で各階のかご呼びが登録されたとき閉成
するかご呼び登録リレー接点、２６はかごの戸が
閉じると閉成する戸閉検出リレー接点、２７は利
用可能かご検出リレーで、２７ａはその常開接
点、２８は端子Ｌ−M₀間が短絡され端子Ａ−Ｂ
間に電圧が印加されるとそれから20秒後に端子Ｃ
に出力を発し、同様に端子Ｌ−M₁間が短絡され
たときは１分、端子Ｌ−M₃間が短絡されたとき
は３分後にそれぞれ出力を発するタイマ、２９は
タイマ２８の出力リレーで、２９ａはその常開接
点、３０は付勢されると電動発電機を休止させる
指令を発するリレー、３１は同じくかご内照明を
消灯する指令を発するリレー、３２は同じく位置
表示器を消灯する指令を発するリレー、３３は同
じく制御盤用電源の一部を休止させる指令を発す
るリレーである。なお、第２図の回路は各かごご
とに設けられている。なお、零台休止リレー接点１０、１台〜４台休
止リレー接点１１，１２ａ，１２ｂ，１３及び１
４は休止かごの台数を検出する検出手段である。次に、この実施例の動作を説明する。今、休止かご台数が２台と指定されているとす
ると、２台指定リレー接点２ａ，２ｂは開放して
いる。ここで、休止を指令され実際に休止しているか
ごが零台と検出されると、零台休止リレー接点１
０は閉成する。（＋）−０−１ａ−１０−２０−
（−）の回路により、20秒指令リレー２０は付勢
され、接点２０ａは開放し、接点２０ｂは閉成す
る。接点２０ａの開放により１分指令リレー２２
は消勢され、接点２２ａは開放する。また、２台
〜４台休止リレー接点１２ｂ，１３，１４は開放
しているので、３分指令リレー２１も付勢され
ず、接点２１ｂは開放する。これで、タイマ２８
の端子Ｌ−M₀間のみが短絡される。さて、割当方式のエレベータでは、かごはかご
呼び及び自分が割り当てられた乗場上り呼び及び
下り呼びのすべてに応答し、かつ戸が閉じると利
用可能かごとなつて次に発生する呼びに対して待
機することになる。すなわち、乗場上り呼び及び
下り呼び割当リレー接点２３ａ〜２３ｎ，２４ａ
〜２４ｎ、かご呼び登録リレー接点２５ａ〜２５
ｎ及び戸閉検出リレー接点２６がすべて閉成する
と、利用可能かご検出リレー２７は付勢され、接
点２７ａは閉成する。これで、タイマ２８は時限
のカウントを開始し、20秒を経過すると出力リレ
ー２９は付勢され、接点２９ａは閉成し、リレー
３０〜３３は付勢される。これにより、電動発電
機は休止し、かご内照明は消灯し、位置表示器は
消灯し、制御盤用電源の一部は休止してこのかご
は休止状態に入る。次に、実際に休止しているかごが１台と検出さ
れたときは、接点１１が閉成する（接点１０，１
２ａは開放している。）。しかし、接点２ａは果放
しているので、20秒指令リレー２０は消勢され、
接点２０ａは閉成し、接点２０ｂは開放する。ま
た、接点１２ｂ，１３，１４はまだ開放している
ため３分指令リレー２１も付勢されず、接点２１
ａは閉成し、接点２１ｂは開放している。これ
で、（＋）−２０ａ−２１ａ−２２−（−）の回路
より１分指令リレー２２は付勢され、接点２２ａ
は閉成し、端子Ｌ−M₁間のみが短絡される。し
たがつて、このかごが利用可能かごがなると、タ
イマ２８は時限のカウントを開始し、１分を経過
すると出力リレー２９は付勢されてこのかごは休
止する。実際に休止しているかごが２台又は３台のとき
は、接点１２ａ，１２ｂ又は接点１３は閉成する
が接点２ａ，２ｂは開放しているので、20秒指令
リレー２０及び３分指令リレー２１は共に付勢さ
れず１台のときと同様１分指令リレー２２が付勢
される。次に、実際に休止しているかごが４台と検出さ
れたときは、接点１４が閉成する、（＋）−４−３
ｂ−１４−２１−（−）の回路により、３分指令
リレー２１は付勢され、接点２１ａは開放し、接
点２１ｂは閉成して、端子Ｌ−M₃間が短絡され
る。これで、１分指令リレー２２は消勢される。
また、接点１０，１１，１２ａは開放しているの
で20秒指令リレー２０も付勢されない。したがつ
て、この場合はかごが利用可能かごになつてから
３分経過すると休止に入る。このようにして、実際の休止かご台数と指定か
ご台数との関係によつて上記時限は制御され、次
のようになる。 This invention relates to an improvement in a device for stopping the operation of an elevator car. Conventionally, when traffic in a building is quiet, such as at night, elevator cars under specific conditions have been automatically shut down to save power. For example, after a certain period of time after the door is closed and there are no more hall calls or car calls to be serviced by each car, the motor generator, the lighting inside the car, most of the indicator lights, control functions, etc. are stopped. Here, the reason for suspending the system after a certain period of time is to observe the call occurrence status and confirm that there are almost no calls before suspending the system. This is to avoid conversely consuming too much power and shortening the lifespan of the equipment. Here, the above certain period of time is
It is always constant regardless of "No" or the number of idle machines. In other words, the time from zero idle cars to the first idle car was the same as the time from which the last idle car came to rest. However, as energy conservation has become a requirement of the times, it has become possible to automatically shut down an appropriate number of machines depending on the situation to the extent that service does not deteriorate significantly even during the day. In this case, rather than passive power saving such as automatically suspending power because there are no calls, the request is to create a suspension basket even if the service is slightly degraded. It will not be restored unless it drops considerably. Therefore, the time from when there are no more calls to service to when the system is suspended should be short (for example, long enough to assume that there are no more passengers).
If the system is shut down after a certain period of time as in the past, there are drawbacks such as it takes too much time to reduce the number of vehicles in operation to save electricity. The present invention is intended to eliminate the above-mentioned drawbacks, and an object of the present invention is to provide an elevator suspension device that can efficiently perform power-saving operation. An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, (+) and (-) are DC power supplies, and 0 is a zero car designation relay contact that opens when the designated number of idle cars is zero.The above designation is performed, for example, by manually operating a switch. 1a, 1b to 3a, 3
b is the relay contact designated for 1 to 3 cars, 4 is the relay contact designated for 4 cars, and 10 is the zero car idle relay contact that closes when the number of cars actually at rest is zero. Since detection is easy, the circuit is omitted. 11 is the same one-stop relay contact, 12a and 12b are the same two-stop stop relay contacts, 13 and 14 are the same three- and four-stop stop relay contacts, 20 is the rest time 20 second command relay, and 20a
is its normally closed contact, 20b is also its normally open contact, 21
is also a 3-minute pause command relay, 21a is its normally closed contact, 21b is also a normally open contact, 22 is also a 1-minute pause command relay, 22a is its normally open contact, 23a to 23n are the terminals on each floor's landing Relay contacts 24a to 24n are relay contacts for up-hall call assignment, which are opened when a call is registered and assigned, and 25a-25n are down-hall call assignment relay contacts.
A car call registration relay contact that closes when a car call for each floor is registered in the car, 26 a door closed detection relay contact that closes when a car door closes, 27 an available car detection relay, and 27a a Its normally open contact, 28, is shorted between terminals L- _M0 and terminals A-B.
20 seconds after a voltage is applied between terminal C
29 is the output relay of timer 28, which outputs an output after 1 minute when terminals L and M ₁ are short-circuited, and after 3 minutes when terminals L and M ₃ are short-circuited. 29a is its normally open contact, 30 is a relay that issues a command to stop the motor generator when energized, 31 is a relay that also issues a command to turn off the interior lighting of the car, and 32 is also a relay that turns off the position indicator. A relay 33 that issues a command also issues a command to suspend a part of the power supply for the control panel. Note that the circuit shown in FIG. 2 is provided for each car. In addition, the zero standstill relay contact 10, 1 to 4 standstill relay contacts 11, 12a, 12b, 13 and 1
4 is a detection means for detecting the number of idle cars. Next, the operation of this embodiment will be explained. Assuming that the number of dormant cars is now designated as two, the two-car designation relay contacts 2a and 2b are open. Here, when the car that is actually at rest after being commanded to rest is detected to be in the zero range, the zero range rest relay contact 1 is activated.
0 is closed. (+)-0-1a-10-20-
The (-) circuit energizes the 20 second command relay 20, opening the contact 20a and closing the contact 20b. 1 minute command relay 22 by opening contact 20a
is deenergized and contact 22a is opened. Moreover, since the 2-4 unit pause relay contacts 12b, 13, and 14 are open, the 3-minute command relay 21 is not energized, and the contact 21b is open. Now timer 28
Only terminals L and _M0 of are short-circuited. Now, in an elevator with an assignment system, a car responds to all car calls, as well as calls to and from the landings to which it is assigned, and when the door closes, the car becomes available and waits for the next call. I will do it. That is, the relay contact points 23a to 23n, 24a for assigning up calls and down calls to the hall
~24n, car call registration relay contacts 25a~25
When all the contact points 26 and 26 are closed, the available car detection relay 27 is energized and the contact 27a is closed. The timer 28 now starts counting the time limit, and when 20 seconds have elapsed, the output relay 29 is energized, the contact 29a is closed, and the relays 30 to 33 are energized. As a result, the motor generator is stopped, the lights inside the car are turned off, the position indicator is turned off, and a part of the power supply for the control panel is stopped, and the car enters the rest state. Next, when it is detected that one car is actually at rest, contact 11 closes (contacts 10, 1
2a is open. ). However, since the contact point 2a is open, the 20 second command relay 20 is deenergized.
Contact 20a is closed and contact 20b is open. In addition, since the contacts 12b, 13, and 14 are still open, the 3-minute command relay 21 is not energized, and the contacts 21
A is closed, and contact 21b is open. Now, the 1 minute command relay 22 is energized from the (+)-20a-21a-22-(-) circuit, and the contact 22a
is closed, and only terminals L and _M1 are shorted. Therefore, when this car becomes available, the timer 28 starts counting the time limit, and when one minute has elapsed, the output relay 29 is energized and the car is put to rest. When two or three cars are actually at rest, contacts 12a, 12b or 13 are closed, but contacts 2a, 2b are open, so 20 second command relay 20 and 3 minute command relay 21 are not energized, but the 1-minute command relay 22 is energized as in the case of only one relay. Next, when the number of idle cars is actually detected as 4, the contact 14 is closed (+)-4-3
The 3-minute command relay 21 is energized by the circuit b-14-21-(-), the contact 21a is opened, the contact 21b is closed, and terminals _LM3 are short-circuited. The one minute command relay 22 is now deenergized.
Furthermore, since the contacts 10, 11, and 12a are open, the 20-second command relay 20 is also not energized. Therefore, in this case, the car goes into hibernation after three minutes have passed since the car became available. In this way, the above-mentioned time limit is controlled according to the relationship between the actual number of idle cars and the designated number of cars, as follows.

【表】つまり、指定休止かご台数が「２」のときでは
最初の１台が休止するときは20秒、２〜４台目が
休止するときはいずれも１分となり、２台目が休
止するときは、１台が休止するときよりも長くな
つている。なお、上記実施例では利用可能かごを検出する
条件として、呼びの有無、戸閉の有無を示したが
それに限るものでなく、例えば方向、乗客数等の
情報を使用してもよい。また、所定出発階で出発時間間隔を制御するい
わゆる割当方式でない方式の群管理では、実施例
の乗場上り呼び及び下り呼び割当リレー接点２３
ａ〜２３ｎ，２４ａ〜２４ｎはそれぞれ乗場上り
呼び及び下り呼び登録リレー接点を用いればよ
い。この発明は、以上述べたとおり、休止かごが少
なくサービス中のかごが多いときは、サービスを
完了したならば早く休止させるようにしたので、
節電運動が可能となるとともに、休止かごが多く
サービス中のかごが少なくなるとサービスを完了
してから長時間経過後に休止させるようにしたの
で、休止状態のかごを直にサービスかごに変更し
たり、その逆変更をしたりする頻度が減少し利用
者の戸惑いを軽減でき、併せて効率的な節電運転
を行うことができる。[Table] In other words, when the specified number of dormant cars is "2", it will be 20 seconds when the first car is idle, and 1 minute when the second to fourth cars are idle, and the second car will be idle. The time is longer than when one car is out of service. In the above embodiment, the conditions for detecting an available car include the presence or absence of a call and the presence or absence of a closed door, but the present invention is not limited to these, and information such as the direction, number of passengers, etc. may also be used. In addition, in group management of a so-called non-assignment method that controls departure time intervals at a predetermined departure floor, the terminal up-call and down-call assignment relay contact 23 of the embodiment
For a to 23n and 24a to 24n, up-call and down-call registration relay contacts may be used, respectively. As mentioned above, in this invention, when there are few idle cars and many cars in service, the system suspends the cars as soon as the service is completed.
In addition to making it possible to save electricity, when there are many idle cars and fewer cars in service, the system will suspend the service after a long period of time, allowing you to immediately change the idle car to a service car. The frequency of reverse changes can be reduced, reducing user confusion, and at the same time, efficient power-saving operation can be performed.

[Brief explanation of the drawing]

第１図及び第２図はこの発明によるエレベータ
の運転休止装置の一実施例を示す回路図である。０……零台指定リレー接点、１ａ，１ｂ〜３
ａ，３ｂ……１台〜３台指定リレー接点、４……
４台指定リレー接点、１０……零台休止リレー接
点（検出手段）、１１……１台休止リレー接点
（検出手段）、１２ａ，１２ｂ……２台休止リレー
接点（検出手段）、１３，１４……３台及び４台
休止リレー接点（検出手段）、２０……休止時間
20秒指令リレー、２１……同左３分指令リレー、
２２……同左１分指令リレー、２３ａ〜２３ｎ…
…乗場上り呼び割当リレー接点、２４ａ〜２４ｎ
……乗場下り呼び割当リレー接点、２５ａ〜２５
ｎ……かご呼び登録リレー接点、２６……戸閉検
出リレー接点、２７……利用可能かご検出リレ
ー、２８……タイマ、２９……同左出力リレー、
３０……電動発電機休止指令リレー、３１……か
ご内照明用消灯指令リレー、３２……位置表示器
消灯指令リレー、３３……制御盤用電源一部休止
指令リレー。 FIGS. 1 and 2 are circuit diagrams showing an embodiment of an elevator suspension device according to the present invention. 0...Zero designated relay contact, 1a, 1b to 3
a, 3b...1 to 3 designated relay contacts, 4...
4 specified relay contacts, 10...Zero standstill relay contact (detection means), 11...1 standstill relay contact (detection means), 12a, 12b...2 standstill relay contacts (detection means), 13, 14 ...3 and 4 standstill relay contacts (detection means), 20...rest time
20 seconds command relay, 21...3 minutes command relay on the left,
22...Same left 1 minute command relay, 23a to 23n...
...Passenger hall up call assignment relay contact, 24a to 24n
...Passport downbound call assignment relay contact, 25a to 25
n...Car call registration relay contact, 26...Door closed detection relay contact, 27...Available car detection relay, 28...Timer, 29...Same output relay,
30... Motor-generator stop command relay, 31... Car lighting turn-off command relay, 32... Position indicator light-off command relay, 33... Control panel power supply partial stop command relay.

Claims

[Claims]

1. Detection means for detecting the number of idle cars in a plurality of elevators managed as a group that have completed their service and are suspended after a predetermined period of time from the completion of the service; An elevator operation suspension device comprising time limit changing means for increasing the predetermined time limit as the number of idle cars increases.