JPH0632552A - Elevator control device - Google Patents
Elevator control deviceInfo
- Publication number
- JPH0632552A JPH0632552A JP4185131A JP18513192A JPH0632552A JP H0632552 A JPH0632552 A JP H0632552A JP 4185131 A JP4185131 A JP 4185131A JP 18513192 A JP18513192 A JP 18513192A JP H0632552 A JPH0632552 A JP H0632552A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- deviation
- rescue operation
- power failure
- speed command
- 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
Links
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、通常運転と停電時救
出運転を共に主制御装置により行なうエレベータ制御装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator control device for performing both normal operation and rescue operation during a power failure by a main control device.
【０００２】[0002]
【従来の技術】一般にエレベータでは、エレベータ電源
が停電した時に、エレベータかご内に乗客が取り残され
ていれば電源の回復まで閉じ込めてしまうことになるた
め、補助電源であるバッテリを電源としてエレベータか
ごを最寄りの階まで誘導し、停止してドアを開いて中の
乗客を降ろし、その後にドアを閉めて停止する停電時救
出運転を自動的に行なう機能を備えている。2. Description of the Related Art Generally, in an elevator, when an elevator power supply is cut off, if passengers are left behind in the elevator car, it will be trapped until the power is restored. It is equipped with a function to automatically carry out rescue operation during a power failure by guiding to the nearest floor, stopping and opening the door to lower passengers inside, and then closing the door and stopping.
【０００３】そして、このような停電時救出運転機能を
備えたエレベータでは、従来、通常運転と共に停電時救
出運転をも主制御装置によって行ない、さらに停電時救
出運転における制御異常の監視も主制御装置により行な
うようにしたものがあり、この主制御装置により停電時
救出運転をも行なうエレベータ制御装置では、停電時救
出運転装置を別途に備えているエレベータ制御装置に比
べて保護監視機能が充実しているため、信頼性が高い特
長がある。In an elevator equipped with such a power outage rescue operation function, conventionally, a main controller performs both a normal operation and a power outage rescue operation, and also monitors a control abnormality in the power outage rescue operation. In this elevator control device that also performs rescue operation during a power outage with this main control device, the protection monitoring function is enhanced compared to the elevator control device that has a rescue operation device during a power outage separately. Therefore, it has a feature of high reliability.
【０００４】[0004]
【発明が解決しようとする課題】ところが、このような
従来のエレベータ制御装置では、運転速度に関しては、
元来、通常運転時の定格運転速度と停電救出運転時の運
転速度とは異なっており、通常運転時の運転速度を基準
にしていたのでは停電救出運転時に保護動作検出レベル
に至らない場合がある問題点があった。すなわち、速度
指令信号と速度帰還信号の偏差を監視し、その偏差信号
があらかじめ設定された偏差より大きくなったときに制
御異常を検出するようにした速度制御異常検出機能（Ｍ
ＦＤ：モータフリーディテクション）に関しては、通常
運転時は定格速度を基準として検出レベル偏差を設定し
ているため、その設定値は比較的大きいものとなる。こ
れに対して、停電救出運転時は救出運転用のバッテリ電
圧に制約があるため、比較的低速で救出運転がなされ
る。そのため、停電救出運転時に制御異常が起こり、速
度指令と速度帰還信号との偏差が大きくなったとしても
エレベータ定格速度で設定した偏差までは至らず、制御
異常のまま運転を継続してしまう恐れがある問題点があ
った。However, in the conventional elevator control device as described above, regarding the operating speed,
Originally, the rated operation speed during normal operation and the operation speed during blackout rescue operation are different, and if the operating speed during normal operation was used as the standard, the protection operation detection level may not be reached during a power outage rescue operation. There was a problem. That is, a speed control abnormality detection function (M which monitors a deviation between the speed command signal and the speed feedback signal and detects a control abnormality when the deviation signal becomes larger than a preset deviation
Regarding FD (motor free detection), since the detection level deviation is set with reference to the rated speed during normal operation, the set value is relatively large. On the other hand, during the power outage rescue operation, the rescue operation is performed at a relatively low speed because the battery voltage for the rescue operation is limited. Therefore, even if a control error occurs during the power outage rescue operation and the deviation between the speed command and the speed feedback signal becomes large, the deviation set by the rated elevator speed does not reach and the operation may continue with the control error. There was a problem.
【０００５】この発明はこのような従来の問題点に鑑み
なされたもので、速度偏差の設定値を通常運転時と停電
救出運転時とで異なる値を与えるようにし、停電救出運
転時にも確実に制御異常の発生を検出できるようにした
エレベータ制御装置を提供することを目的とする。The present invention has been made in view of the above-mentioned problems of the prior art. The set value of the speed deviation is set to be different between the normal operation and the power failure rescue operation, so that the speed failure rescue operation can be reliably performed. An object of the present invention is to provide an elevator control device capable of detecting the occurrence of control abnormality.
【０００６】[0006]
【課題を解決するための手段】この発明は、主制御装置
によって通常運転と共に停電時救出運転制御をも行な
い、速度指令信号と速度帰還信号との偏差があらかじめ
与えられている設定値以上に大きい場合に速度偏差異常
を検出する速度偏差異常検出器を備えたエレベータ制御
装置において、通常時の定格運転速度指令を与える定格
速度指令発生器と、停電時救出運転速度指令を与える救
出運転速度指令発生器と、前記定格速度指令発生器から
の定格運転速度指令と速度帰還信号を比較し、偏差があ
らかじめ与えられている第１の設定値以上である場合に
速度偏差異常検出信号を出力する通常運転時速度偏差異
常検出器と、前記停電時救出運転速度指令発生器からの
停電時救出運転速度指令と速度帰還信号を比較し、偏差
があらかじめ与えられている前記第１の設定値よりも小
さい第２の設定値以上である場合に速度偏差異常検出信
号を出力する停電救出運転時速度偏差異常検出器と、停
電時に前記定格速度指令発生器と通常運転時速度偏差異
常検出器を切り離し、救出運転速度指令発生器と停電救
出運転時速度偏差異常検出器を活かす回路の切換を行な
う切換器とを備えたものである。According to the present invention, the main control unit performs not only the normal operation but also the rescue operation during a power failure, and the deviation between the speed command signal and the speed feedback signal is larger than a preset value. In an elevator controller equipped with a speed deviation abnormality detector that detects a speed deviation abnormality, a rated speed command generator that gives a rated operation speed command during normal operation and a rescue operation speed command generation that gives a rescue operation speed command during a power failure Normal operation that compares the rated operation speed command from the rated speed command generator with the speed feedback signal and outputs the speed deviation abnormality detection signal when the deviation is equal to or greater than the first preset value. The speed deviation abnormality detector is compared with the rescue operation speed command during power failure from the rescue operation speed command generator during power failure and the speed feedback signal, and the deviation is given in advance. The power deviation rescue abnormality speed deviation abnormality detector that outputs a speed deviation abnormality detection signal when the value is equal to or more than the second setting value that is smaller than the first setting value, and the rated speed command generator and the normal when the power failure occurs The operation speed deviation abnormality detector is separated, and a rescue operation speed command generator and a switcher for switching the circuit to utilize the power failure rescue operation speed deviation abnormality detector are provided.
【０００７】[0007]
【作用】この発明のエレベータ制御装置では、通常運転
時には、定格速度指令発生器からの定格運転速度指令
と、速度帰還信号との偏差を通常運転時速度偏差異常検
出器において第１の設定値と比較し、異常がある場合に
は速度偏差異常信号を出力する。In the elevator control apparatus of the present invention, during normal operation, the deviation between the rated operation speed command from the rated speed instruction generator and the speed feedback signal is set as the first set value in the speed deviation abnormality detector during normal operation. If there is an abnormality, a speed deviation abnormality signal is output.
【０００８】そして、停電が発生した時には、切換器に
よって停電時救出運転速度指令発生器と停電救出運転時
速度偏差異常検出器とを活かすように回路を切り換え、
停電救出運転時速度偏差異常検出器において停電時救出
運転速度指令発生器からの停電時救出運転速度指令と速
度帰還信号との偏差を前記第１の設定値よりも小さい第
２の設定値と比較し、異常がある場合には速度偏差異常
信号を出力する。When a power failure occurs, the circuit is switched by the switch so that the rescue operation speed command generator during power failure and the speed deviation abnormality detector during power failure rescue operation can be utilized.
In the power failure rescue operation speed deviation abnormality detector, compare the deviation between the rescue operation speed command during power failure and the speed feedback signal from the rescue operation speed command generator during power failure with a second set value that is smaller than the first set value If there is an abnormality, a speed deviation abnormality signal is output.
【０００９】こうして、通常運転時と停電救出運転時と
で速度偏差の比較に用いる設定値を大小異ならせ、停電
救出運転時の制御異常も確実に検出できるようにする。In this way, the set values used for comparing the speed deviations during normal operation and during power outage rescue operation are made large and small, so that control abnormalities during power outage rescue operation can be detected with certainty.
【００１０】[0010]
【実施例】以下、この発明の実施例を図に基づいて詳説
する。Embodiments of the present invention will now be described in detail with reference to the drawings.
【００１１】図１はこの発明の一実施例の回路ブロック
図であり、エレベータ制御に関係する主制御装置のう
ち、この発明の実施例に関係する回路部分のみを示して
いる。したがって、エレベータ運転のためには駆動電動
機制御回路、ドア開閉制御回路、かご呼び制御回路、ホ
ール呼び制御回路などを必要とするが、図１では、速度
偏差異常検出に関係する部分のみが示されている。FIG. 1 is a circuit block diagram of an embodiment of the present invention, showing only a circuit portion related to an embodiment of the present invention in a main controller related to elevator control. Therefore, a drive motor control circuit, a door opening / closing control circuit, a car call control circuit, a hall call control circuit, etc. are required for elevator operation, but FIG. 1 shows only the portion related to speed deviation abnormality detection. ing.
【００１２】この実施例のエレベータ制御装置は、停電
を検出するための停電検出回路１、停電発生時にかご内
に乗客が閉じ込められていることを検出した場合に作動
する停電時救出運転指令リレー２、通常運転時定格速度
指令ＶＰ１と停電時救出運転速度指令ＶＰ２を発生し、
停電時救出運転指令リレー２の作動によってこれらの速
度指令を切り換えて出力する速度指令発生器３を備えて
いる。The elevator control apparatus of this embodiment includes a power failure detection circuit 1 for detecting a power failure, and a power failure rescue operation command relay 2 which operates when a passenger is trapped in a car when a power failure occurs. , A normal operation rated speed command VP1 and a power failure rescue operation speed command VP2 are generated,
A speed command generator 3 for switching and outputting these speed commands by the operation of the rescue operation command relay 2 during a power failure is provided.
【００１３】また、通常運転時に定格速度指令ＶＰ１と
速度帰還信号ＶＳとを比較し、その偏差があらかじめ設
定されている図２に示すような第１の設定値ＭＦ１より
大きいかどうか判定し、偏差が第１の設定値ＭＦ１より
大きい場合に速度偏差異常信号ＭＦＤ１を出力する通常
運転時速度偏差異常（ＭＦＤ）検出器４と、停電救出運
転時に救出運転速度指令ＶＰ２と速度帰還信号ＶＳとを
比較し、その偏差があらかじめ設定されている第２の設
定値ＭＦ２（この第２の設定値ＭＦ２は第１の設定値Ｍ
Ｆ１よりも小さい値に設定されている）より大きいかど
うか判定し、偏差が第２の設定値ＭＦ２より大きい場合
に速度偏差異常信号ＭＦＤ２を出力する停電救出運転時
速度偏差異常（ＭＦＤ）検出器５と、これらの通常運転
時ＭＦＤ検出器４と停電救出運転時ＭＦＤ検出器５のい
ずれかから速度異常検出信号ＭＦＤ１またはＭＦＤ２が
出力されたときに速度異常検出信号ＭＦＤを出力するＯ
Ｒ回路６を備えている。Further, during normal operation, the rated speed command VP1 is compared with the speed feedback signal VS, and it is judged whether the deviation is larger than a preset first set value MF1 as shown in FIG. Is compared with the first set value MF1, the speed deviation abnormality signal MFD1 for normal operation that outputs the speed deviation abnormality signal MFD1 is compared with the rescue operation speed command VP2 and the speed feedback signal VS during the power failure rescue operation. The second set value MF2 whose deviation is set in advance (the second set value MF2 is the first set value M
(Set to a value smaller than F1), and if the deviation is larger than the second set value MF2, a speed deviation abnormality signal MFD2 is output and a speed deviation abnormality (MFD) detector during a power failure rescue operation 5, and outputs the speed abnormality detection signal MFD when the speed abnormality detection signal MFD1 or MFD2 is output from either the normal operation MFD detector 4 or the power failure rescue operation MFD detector 5.
The R circuit 6 is provided.
【００１４】そして、通常運転時ＭＦＤ検出器４の速度
帰還信号入力線に停電時救出運転指令リレー２によって
駆動される常閉接点７が挿入され、一方、停電救出運転
時ＭＦＤ検出器５の速度帰還信号入力線に停電時救出運
転指令リレー２によって駆動される常開接点８が挿入さ
れ、通常時には通常運転時ＭＦＤ検出器４側が動作し、
停電救出運転時には停電救出運転時ＭＦＤ検出器５側が
動作するようにしてある。The normally closed contact 7 driven by the rescue operation command relay 2 during power failure is inserted into the speed feedback signal input line of the MFD detector 4 during normal operation, while the speed of the MFD detector 5 during rescue operation during power failure is inserted. The normally open contact 8 driven by the rescue operation command relay 2 during a power failure is inserted in the feedback signal input line, and the MFD detector 4 side during normal operation operates during normal operation.
During a power failure rescue operation, the MFD detector 5 side operates during a power failure rescue operation.
【００１５】次に、上記構成のエレベータ制御装置の動
作について説明する。Next, the operation of the elevator control device having the above configuration will be described.
【００１６】図２に示すように、通常運転時定格速度Ｖ
Ｐ１に対する速度偏差の第１の設定値ＭＦ１と、停電時
救出運転速度ＶＰ２に対する速度偏差の第２の設定値Ｍ
Ｆ２とが設定されている。As shown in FIG. 2, the rated speed V during normal operation is
First set value MF1 of speed deviation with respect to P1 and second set value M of speed deviation with respect to rescue operation speed VP2 during power failure
F2 and are set.
【００１７】通常運転時には、停電検出回路１が動作せ
ず、停電時救出運転指令リレー２も動作しないために常
閉接点７が閉じた状態にあり、一方、常開接点８が開い
た状態にあり、この結果として、通常運転時ＭＦＤ検出
器４が動作し、停電救出運転時ＭＦＤ検出器５は停止し
ている。During normal operation, the power failure detection circuit 1 does not operate and the rescue operation command relay 2 during power failure does not operate, so the normally closed contact 7 is closed, while the normally open contact 8 is open. As a result, the MFD detector 4 during normal operation operates and the MFD detector 5 during blackout rescue operation is stopped.
【００１８】そこで、通常運転時ＭＦＤ検出器４に速度
指令発生器３から定格速度指令ＶＰ１が与えられ、速度
帰還信号ＶＳと比較し、その偏差が第１の設定値ＭＦ１
と比較され、その偏差が第１の設定値ＭＦ１よりも小さ
ければ出力がなく、大きければ偏差異常として異常信号
ＭＦＤ１がＯＲ回路６を通して外部に速度偏差異常信号
ＭＦＤとして出力されていく。Therefore, the rated speed command VP1 is given from the speed command generator 3 to the MFD detector 4 during the normal operation and compared with the speed feedback signal VS, and the deviation thereof is the first set value MF1
If the deviation is smaller than the first set value MF1, there is no output, and if it is larger than the first set value MF1, an abnormal signal MFD1 is output as a deviation abnormality through the OR circuit 6 to the outside as a speed deviation abnormality signal MFD.
【００１９】停電が発生すれば、停電検出回路１が停電
を検出し、エレベータかご内に乗客が閉じ込められてい
ればそれを検出して停電時救出運転指令リレー２が動作
する。この動作の結果として、速度指令発生器３は停電
時救出運転速度指令ＶＰ２を出力し、同時に常閉接点７
は開き、逆に常開接点８が閉じ、この停電時救出運転速
度指令ＶＰ２が停電救出運転時ＭＦＤ検出器５に与えら
れ、ここで速度帰還信号ＶＳと比較し、その偏差が第２
の設定値ＭＦ２よりも小さければ出力がなく、大きけれ
ば偏差異常として異常信号ＭＦＤ２がＯＲ回路６を通し
て外部に速度偏差異常信号ＭＦＤとして出力されてい
く。When a power failure occurs, the power failure detection circuit 1 detects the power failure, and if passengers are trapped in the elevator car, it detects it and the rescue operation command relay 2 at the time of power failure operates. As a result of this operation, the speed command generator 3 outputs the rescue operation speed command VP2 during power failure, and at the same time, the normally closed contact 7
Open, conversely the normally open contact 8 closes, and the rescue operation speed command VP2 during power failure is given to the MFD detector 5 during power failure rescue operation, where it is compared with the speed feedback signal VS, and the deviation is the second.
If it is smaller than the set value MF2 of No., there is no output.
【００２０】このようにして、通常時でも、停電時の救
出運転時でもそれぞれの定格速度ＶＰ１，ＶＰ２に対応
して大小異なった偏差の設定値ＭＦ１，ＭＦ２を与え、
実速度ＶＳが指令速度と大きくかけ離れている場合、速
度偏差異常信号を出力して保護を行なうことができる。In this way, the set values MF1 and MF2 having different magnitudes are given in correspondence with the rated speeds VP1 and VP2, respectively, both in the normal operation and in the rescue operation during a power failure,
When the actual speed VS is far from the commanded speed, a speed deviation abnormality signal can be output for protection.
【００２１】[0021]
【発明の効果】以上のようにこの発明によれば、停電発
生時の救出運転では、その速度指令に応じて通常運転時
の偏差設定値よりも小さい速度偏差設定値を与え、実速
度と速度指令との偏差がこの速度偏差設定値よりも大き
い場合に速度異常として、異常検出信号を出力するよう
にしているため、従来のように停電救出運転時に速度異
常が発生しても定格速度に対する偏差設定値で比較して
いたために検出できない場合があるということがなく、
確実に速度異常を検出でき、確実な保護動作に寄与する
ことができて信頼性の向上が図れる。As described above, according to the present invention, in the rescue operation when a power failure occurs, a speed deviation set value that is smaller than the deviation set value during normal operation is given according to the speed command, and the actual speed and the speed are set. If the deviation from the command is larger than this speed deviation set value, an abnormality detection signal is output as a speed abnormality, so even if a speed abnormality occurs during a power outage rescue operation as in the past, the deviation from the rated speed There is no case that it cannot be detected because it was compared with the set value,
The speed abnormality can be reliably detected, and the reliable protection operation can be contributed to improve the reliability.
【図１】この発明の一実施例の回路ブロック図。FIG. 1 is a circuit block diagram of an embodiment of the present invention.
【図２】上記実施例における速度パターンと速度偏差設
定値との関係を示すグラフ。FIG. 2 is a graph showing a relationship between a speed pattern and a speed deviation set value in the above embodiment.
１ 停電検出回路 ２ 停電時救出運転指令リレー ３ 速度指令発生器 ４ 通常運転時速度偏差異常検出器 ５ 停電救出運転時速度偏差異常検出器 ６ ＯＲ回路 ７ 常閉接点 ８ 常開接点 ＶＰ１ 通常時定格速度指令 ＶＰ２ 停電時救出運転速度指令 ＭＦ１ 第１の設定値 ＭＦ２ 第２の設定値 1 Power failure detection circuit 2 Rescue operation command relay during power failure 3 Speed command generator 4 Speed deviation abnormality detector during normal operation 5 Speed deviation abnormality detector during power failure rescue operation 6 OR circuit 7 Normally closed contact 8 Normally open contact VP1 Normal rating Speed command VP2 Blackout rescue operation speed command MF1 1st set value MF2 2nd set value
Claims (1)
時救出運転制御をも行ない、速度指令信号と速度帰還信
号との偏差があらかじめ与えられている設定値以上に大
きい場合に速度偏差異常を検出する速度偏差異常検出器
を備えたエレベータ制御装置において、 通常時の定格運転速度指令を与える定格速度指令発生器
と、 停電時救出運転速度指令を与える救出運転速度指令発生
器と、 前記定格速度指令発生器からの定格運転速度指令と速度
帰還信号を比較し、偏差があらかじめ与えられている第
１の設定値以上である場合に速度偏差異常検出信号を出
力する通常運転時速度偏差異常検出器と、 前記停電時救出運転速度指令発生器からの停電時救出運
転速度指令と速度帰還信号を比較し、偏差があらかじめ
与えられている前記第１の設定値よりも小さい第２の設
定値以上である場合に速度偏差異常検出信号を出力する
停電救出運転時速度偏差異常検出器と、 停電時に前記定格速度指令発生器と通常運転時速度偏差
異常検出器を切り離し、救出運転速度指令発生器と停電
救出運転時速度偏差異常検出器を活かす回路の切換を行
なう切換器とを備えて成るエレベータ制御装置。1. A main controller performs normal operation as well as rescue operation control during a power failure, and detects a speed deviation abnormality when the deviation between the speed command signal and the speed feedback signal is larger than a preset value. In an elevator controller equipped with a speed deviation abnormality detector, a rated speed command generator that gives a rated operation speed command during normal operation, a rescue operation speed command generator that gives a rescue operation speed command during a power failure, and the rated speed command generation described above. A normal operation speed deviation abnormality detector that compares the rated operation speed command from the controller with the speed feedback signal and outputs a speed deviation abnormality detection signal when the deviation is equal to or greater than the first preset value The first set value in which the deviation is given in advance by comparing the rescue operation speed command at power failure with the speed feedback signal from the rescue operation speed command generator at power failure If the power deviation error detection signal is output when the speed deviation is smaller than the second setting value, which is smaller than the second setting value, the speed deviation abnormality detector during power failure rescue operation, the rated speed command generator and the speed deviation abnormality detector during normal operation during a power failure An elevator control device comprising: a disconnecting switch for switching between circuits for utilizing a rescue operation speed command generator and a speed deviation rescue operation speed deviation abnormality detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4185131A JPH0632552A (en) | 1992-07-13 | 1992-07-13 | Elevator control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4185131A JPH0632552A (en) | 1992-07-13 | 1992-07-13 | Elevator control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0632552A true JPH0632552A (en) | 1994-02-08 |
Family
ID=16165419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4185131A Pending JPH0632552A (en) | 1992-07-13 | 1992-07-13 | Elevator control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632552A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100101897A1 (en) * | 2007-03-27 | 2010-04-29 | Mitsubishi Electric Corporation | Brake device for elevator |
| JP2016159994A (en) * | 2015-02-27 | 2016-09-05 | 株式会社日立製作所 | Elevator |
-
1992
- 1992-07-13 JP JP4185131A patent/JPH0632552A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100101897A1 (en) * | 2007-03-27 | 2010-04-29 | Mitsubishi Electric Corporation | Brake device for elevator |
| US8297411B2 (en) * | 2007-03-27 | 2012-10-30 | Mitsubishi Electric Corporation | Brake device for use in an elevator using a target pattern when a hoist is not driven |
| JP2016159994A (en) * | 2015-02-27 | 2016-09-05 | 株式会社日立製作所 | Elevator |
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