JP2771771B2 - Error level judgment method - Google Patents
Error level judgment methodInfo
- Publication number
- JP2771771B2 JP2771771B2 JP6075527A JP7552794A JP2771771B2 JP 2771771 B2 JP2771771 B2 JP 2771771B2 JP 6075527 A JP6075527 A JP 6075527A JP 7552794 A JP7552794 A JP 7552794A JP 2771771 B2 JP2771771 B2 JP 2771771B2
- Authority
- JP
- Japan
- Prior art keywords
- relay
- failure
- contact
- operating
- opening
- 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 - Lifetime
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- Testing And Monitoring For Control Systems (AREA)
- Safety Devices In Control Systems (AREA)
- Programmable Controllers (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は異常レベル判定装置に関
し、詳しくは、発電、利水、放水及び防潮事業などに使
用される水門や揚排水機場のポンプ設備などのようにリ
レーシーケンス制御される機械設備について、運転不良
状態などの故障原因を発見してその復旧を支援する異常
レベル判定装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an abnormal level judging device, and more particularly, to a machine controlled by a relay sequence, such as a sluice gate used for power generation, water use, water discharge and tide prevention business, and a pumping equipment of a pumping station. The present invention relates to an abnormality level determination device that discovers a cause of a failure such as an operation failure state and assists recovery of the equipment.
【0002】[0002]
【従来の技術】例えば、発電、利水、放水及び防潮事業
などに使用される水門や揚排水機場のポンプ設備などの
ようにリレーシーケンス制御されている機械設備では、
何等かの原因による動作機器の誤動作などの軽故障によ
って、その動作機器が運転停止する場合がある。その軽
故障の場合、特に、緊急時には、不良機器の修理を待た
ずに運転可能な動作機器だけでも強制的に運転再開を図
ることがある。2. Description of the Related Art For example, in mechanical equipment controlled by a relay sequence, such as a sluice gate and a pump equipment of a pumping station used for power generation, water use, water discharge and tide prevention business, etc.
There is a case where the operation device stops operating due to a minor failure such as a malfunction of the operation device due to some cause. In the case of such a minor failure, particularly in an emergency, the operation may be forcibly restarted only with the operable operating device without waiting for the repair of the defective device.
【0003】そのため、上述した故障レベルが軽故障で
あるか否かを判定する必要がある。従来、動作機器の運
転停止時には、リミットスイッチ、圧力スイッチ、モー
タリレーや配線用遮断器などの保護装置が作動し、その
保護装置の作動により、所定の表示灯や警報ブザーで運
転停止状態を報知し、これを作業者が確認するようにし
ている。これに基づいて、作業者は、保護装置の作動に
関連する計器の状態、設備の動作状態や関連する表示灯
類の状態を調査し、保護装置の作動状態と合致している
か否かを判断する。この作業者による判断結果から、動
作機器の軽故障であると判明すれば、作業者による手動
で、運転可能な動作機器だけでも強制的に運転再開させ
るようにしている。また、このように機械設備の故障診
断は、上述した制御盤の表示情報によるか、或いは、故
障発生の因果関係を系統化した故障の木〔FT図〕を基
本にソフトウェア設計された対話型のオフライン方法が
採用されている。[0003] Therefore, it is necessary to determine whether or not the above-mentioned failure level is a minor failure. Conventionally, when the operation of operating equipment is stopped, protection devices such as limit switches, pressure switches, motor relays, and circuit breakers for wiring are activated, and when the protection devices are activated, the operation stop status is notified by a predetermined indicator light or alarm buzzer. Then, the operator confirms this. Based on this, the worker investigates the status of the instrument related to the operation of the protection device, the operation status of the equipment and the status of the related indicator lights, and determines whether or not the operation status of the protection device matches. I do. If it is determined from the result of the determination by the operator that the operating device is a minor failure, the operator manually restarts the operation of only the operable operating device manually. In this way, the failure diagnosis of the mechanical equipment is performed based on the display information of the control panel described above or an interactive type software designed based on a failure tree [FT diagram] in which the causal relationship of the failure occurrence is systematized. Offline method is adopted.
【0004】[0004]
【発明が解決しようとする課題】ところで、制御盤の表
示情報による場合では、上述したように軽故障か否かに
ついての故障レベルの判定を作業者が行なっていたの
で、その作業者が、保護装置の役割、機能及び動作条件
などの各種情報を十分に把握していないと、軽故障か否
かの判定をすることが非常に困難であった。従って、作
業者としては、表示情報の個々の意味とそれらの関連性
や故障表示の原因、復旧方法の知識が必要となり、保護
装置を含む設備に関して十分な知識と経験を持った熟練
者であることが必要であった。By the way, in the case of the display information on the control panel, the worker has determined the failure level as to whether or not the failure is minor, as described above. Unless various information such as the role, function, and operating condition of the device is sufficiently grasped, it is very difficult to determine whether or not a minor failure has occurred. Therefore, the operator needs to have knowledge of the meaning of each piece of display information, their relevance, the cause of the failure display, and the recovery method, and is a skilled worker with sufficient knowledge and experience regarding the equipment including the protection device. It was necessary.
【0005】また、その熟練した作業者であっても、故
障表示項目が設置された保護装置の数だけに限られ、而
も、制御盤には直接的原因やその直接的原因を推定する
ための方法が提供されていないので、保護装置の作動に
関連する計器の状態、設備の動作状態や関連する表示灯
類の状態を調査しなければならず、多大な労力と時間を
費やしているというのが現状であった。[0005] Further, even a skilled worker is limited to the number of protection devices in which the failure display items are installed, and the control panel is required to estimate the direct cause and the direct cause. Is not provided, it is necessary to investigate the condition of the instrument related to the operation of the protection device, the condition of the operation of the equipment and the condition of the related indicator lights, which is a great deal of labor and time. That was the current situation.
【0006】更に、保護装置の作動後にその動作要素の
データが消滅してしまうもの、例えば、動作機器の軽故
障が過電流に起因する場合、その過電流を検出する過電
流保護装置では、電流値が動作要素となるが、保護装置
の作動後はその電流値の指示が0となるため、故障発生
直前の指示を常時監視していなければならず、これを見
逃すと判定できないという不具合があった。Further, in the case where the data of the operating element disappears after the protection device is operated, for example, when a minor failure of the operating device is caused by the overcurrent, the overcurrent protection device for detecting the overcurrent has a problem in that the Although the value is an operating element, the instruction of the current value is 0 after the protection device is activated, so the instruction immediately before the occurrence of the fault must be constantly monitored, and if this is overlooked, it is impossible to judge if it is overlooked. Was.
【0007】また、上述した動作機器のシーケンス制御
回路では、一つのリレーで開閉する複数のリレー接点の
うち、各リレー接点を、表示用や運転用などに分担させ
ているため、これら各リレー接点の一部に不良が発生す
ると、例えば、表示用リレー接点については正常状態で
あっても、運転用リレー接点については故障状態となる
ような相反する現象が生じる。このような場合、作業者
がその原因を究明するためには相当な時間を必要とし、
緊急時などには対処しきれないという問題があった。Further, in the above-described sequence control circuit of the operating device, among the plurality of relay contacts that are opened and closed by one relay, each relay contact is shared for display, operation, and the like. If a defect occurs in a part of the relay relay, for example, even if the display relay contact is in a normal state, the operation relay contact will be in a failure state, and contradictory phenomena occur. In such a case, it takes a considerable amount of time for the operator to investigate the cause,
There was a problem that they could not cope in an emergency.
【0008】一方、ソフトウェア設計された対話型のオ
フライン方法では、ソフトウェアの設計上、操作員によ
る状況判断と対話入力が必要であり、洪水時などの時間
的制約がある緊急時の故障診断、復旧を支援する方法と
しては時間がかかる。また、ソフトウェアそのものの出
来、不出来により故障原因の検出精度が大きく左右され
るという問題があった。On the other hand, the software-designed interactive off-line method requires an operator to judge the situation and input interactively in the software design, and diagnoses and recovers from an emergency in the event of a time constraint such as a flood. It takes time as a way to help. In addition, there has been a problem that the accuracy of detecting the cause of a failure is greatly affected by the performance or failure of the software itself.
【0009】そこで、本発明は上記問題点に鑑みて提案
されたもので、その目的とするところは、動作機器の故
障レベルが軽故障か否かを簡便に判定できるように自動
化し、電気や機械の専門的知識や経験がない者でも故障
原因が迅速に判定できるよう情報提供を行い、その復旧
を支援することにより設備操作の確実性を増大させ事故
の拡大を未然に防止し得る異常レベル判定方法及び装置
を提供することにある。In view of the above, the present invention has been proposed in view of the above-mentioned problems. It is an object of the present invention to automatically automate the operation equipment so that it can be easily determined whether the failure level is a minor failure, and to reduce the electric power consumption. Anomaly levels that provide information so that even those who do not have specialized knowledge or experience in machinery can quickly determine the cause of a failure and support its recovery, thereby increasing the certainty of equipment operation and preventing the spread of accidents. An object of the present invention is to provide a determination method and an apparatus.
【0010】[0010]
【課題を解決するための手段】上記目的を達成するため
の技術的手段として、本発明に係る異常レベル判定方法
は、動作機器に関連して一つのリレーで開閉する複数の
リレー接点のうち、分担する動作項目から選択された二
つのリレー接点の開閉状態を比較すると共に前記動作機
器の動作要素を判断基準とし、前記リレー接点の開閉状
態及び動作要素による判定結果を類別した診断マトリッ
クスを予め作成し、それらリレー接点の開閉による動作
機器のシーケンス制御中に動作機器が運転停止した時、
その運転停止直前のリレー接点の開閉状態及び運転要素
から前記診断マトリックスに基づく判定結果により、動
作機器の異常レベルを判定するようにしたことを特徴と
する。As a technical means for achieving the above object, an abnormal level judging method according to the present invention comprises a plurality of relays which are opened and closed by one relay in relation to operating equipment .
Two of the relay contacts selected from the shared operation items
Comparing the open / closed state of the two relay contacts and
The operating condition of the relay is used as a criterion,
A diagnostic matrix that classifies the judgment results by the state and the operation element is created in advance, and when the operation apparatus stops operating during sequence control of the operation apparatus by opening and closing the relay contacts,
The open / closed state of the relay contacts and the operating elements immediately before the stop of operation
By based rather determination result to the diagnostic matrix from, characterized in that so as to determine the abnormal level of the operation device.
【0011】[0011]
【0012】[0012]
【0013】[0013]
【0014】[0014]
【作用】本発明では、リレー接点の開閉による動作機器
のシーケンス制御中に動作機器が運転停止した時、その
運転停止直前のリレー接点の開閉状態及び運転要素から
診断マトリックスに基づく判定結果により、動作機器の
異常レベルを判定するようにしたから、その異常レベル
の判定が簡略化される。 According to the present invention, an operating device by opening and closing a relay contact is provided.
When the operating device stops operating during the sequence control of
By based rather determination result <br/> diagnostic matrix from off state and the operating elements of the relay contact just before shutdown, it is so arranged to determine the abnormal level of the operation device, the determination of the abnormal level is simplified .
【0015】[0015]
【実施例】本発明に係る異常レベル判定方法及び装置の
実施例を図1乃至図7に示して説明する。尚、以下の実
施例では、水門設備の主要な保護装置である上下限検出
器及び過電流継電器について詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method and apparatus for determining an abnormal level according to the present invention will be described with reference to FIGS. In the following embodiments, upper and lower limit detectors and overcurrent relays, which are main protection devices of a floodgate facility, will be described in detail.
【0016】本発明では、まず、動作機器に関連する複
数のリレー接点の診断マトリックスを予め作成する。具
体的には、上述した上下限検出器の場合、図1に示すよ
うに例えば、上下限検出器の上限リミットスイッチを例
にとると、一つのリレーで開閉する複数のリレー接点の
うち、分担する動作項目から選択された二つのリレー接
点、例えば、運転用リレー接点と表示用リレー接点の両
方の開閉状態を比較することにより接点状態を検出する
ことが可能であり、また、上下限検出器の動作要素とし
て開度位置があり、その開度計の指示値が判定基準とな
る。即ち、上限リミットスイッチの場合、判定項目とし
ては、運転用リレー接点、表示用リレー接点及び開度計
の指示値を設定する。そして、判定結果を、正常と、接
点不良、動作不良及び誤動作からなる軽故障とに類別し
た場合、図1のような診断マトリックスを作成する。In the present invention, first, a diagnostic matrix of a plurality of relay contacts related to the operating device is created in advance. Specifically, in the case of the above-mentioned upper and lower limit detectors, as shown in FIG. 1, for example, taking an upper limit switch of the upper and lower limit detectors as an example, among a plurality of relay contacts that are opened and closed by one relay, It is possible to detect the contact state by comparing the open / closed state of two relay contacts selected from the operation items to be operated, for example, both the operation relay contact and the display relay contact. There is an opening position as an operation element of, and the indicated value of the opening meter serves as a criterion. That is, in the case of the upper limit switch, the operation relay contact, the display relay contact, and the indication value of the opening meter are set as the judgment items. Then, when the determination result is classified into normal and minor failure including contact failure, operation failure, and malfunction, a diagnosis matrix as shown in FIG. 1 is created.
【0017】このようにして作成された診断マトリック
スに基づいて、図4に示すように上限リミットスイッチ
の運転用リレー接点X1及び表示用リレー接点X2と、
開度計の上限範囲で作動するリレー接点X3とからなる
リレーシーケンス回路1を構成する。尚、図中、リレー
接点X0は開度計が不良状態となった場合にリレーシー
ケンス回路1を遮断するものである。Based on the diagnostic matrix created in this way, as shown in FIG. 4, an operating relay contact X1 and a display relay contact X2 of the upper limit switch are provided.
The relay sequence circuit 1 includes a relay contact X3 that operates in the upper limit range of the opening meter. In the figure, a relay contact X0 is used to shut off the relay sequence circuit 1 when the opening meter becomes defective.
【0018】また、過電流継電器の場合についても、上
下限検出器の同様であり、図2に示すように分担する動
作項目から選択された二つの運転用リレー接点と表示用
リレー接点の両方の開閉状態を比較することにより接点
状態を検出することが可能であり、過電流継電器の動作
要素としては電流値である。この過電流継電器が動作す
ると運転停止し、動作後の電流値の指示は0となるた
め、動作直前の電流値が判断基準となる。この過電流継
電器の動作直前の電流値を記憶させるために、後述する
プログラマブルコントローラを使用し、そのメモリに動
作直前の電流値データを格納する。このプログラマブル
コントローラでは、過電流継電器の動作によりデータの
更新を中止し、記憶内容を保護すると共に設定値と比較
して過電流状態であったか否かを検出する。この過電流
継電器の場合、判定項目としては、運転用リレー接点、
表示用リレー接点及び電流値を設定し、その判定結果を
正常と、接点不良、動作不良及び誤動作からなる軽故障
とに類別した場合、図2のような診断マトリックスを作
成する。In the case of the overcurrent relay, the same applies to the upper and lower limit detectors, and as shown in FIG. 2, both the operation relay contacts and the display relay contacts selected from the shared operation items are used. The contact state can be detected by comparing the open / closed state, and the operating value of the overcurrent relay is a current value. When the overcurrent relay operates, the operation stops, and the current value after the operation becomes 0, so that the current value immediately before the operation becomes a criterion. In order to store the current value immediately before the operation of the overcurrent relay, a programmable controller described later is used, and the current value data immediately before the operation is stored in the memory. In this programmable controller, the updating of the data is stopped by the operation of the overcurrent relay, the stored contents are protected, and it is compared with a set value to detect whether or not an overcurrent state has occurred. In the case of this overcurrent relay, the judgment items include an operation relay contact,
When the display relay contact and the current value are set, and the result of the determination is classified into normal and minor failure including contact failure, operation failure and malfunction, a diagnosis matrix as shown in FIG. 2 is created.
【0019】次に、他の具体例として、スピンドル式開
閉装置の診断マトリックスを図3に示す。この場合、同
図に示すように判定項目としては、過電流、開限、閉
限、開度計の開限ゾーン及び閉限ゾーンを設定し、判定
結果を図示の如くに類別する。このようにして作成され
た診断マトリックスに基づいて、図5に示すように過電
流、開限、閉限、開度計の開限ゾーン及び閉限ゾーンの
各リレー接点X4〜X8からの入力信号をBCDコード
〔4ビット/16ビット〕変換により判定出力を得るプ
ログラマブルコントローラ2でもって回路構成する。こ
のプログラマブルコントローラ2では、例えば、開限、
閉限、開度計の開限ゾーン及び閉限ゾーンの各リレー接
点X5〜X8からの4入力に対して16出力を得ること
が可能となり〔図中破線部分〕、前述したようなリレー
シーケンス回路1を構成する必要がなくなる。Next, as another specific example, FIG. 3 shows a diagnostic matrix of a spindle type switching device. In this case, as shown in the figure, as the judgment items, an overcurrent, an opening limit, a closing limit, an opening limit zone and a closing zone of the opening meter are set, and the judgment results are classified as shown in the figure. Based on the diagnostic matrix created in this way, as shown in FIG. 5, the input signals from the relay contacts X4 to X8 of the overcurrent, the open limit, the close limit, the open limit zone and the close limit zone of the opening meter. Is configured by a programmable controller 2 which obtains a judgment output by BCD code [4 bits / 16 bits] conversion. In the programmable controller 2, for example,
It is possible to obtain 16 outputs for four inputs from the relay contacts X5 to X8 of the closing limit, the opening limit zone of the opening meter and the closing limit zone (broken line in the figure), and the relay sequence circuit as described above. 1 need not be configured.
【0020】上述した実施例において、各リレー接点X
1〜X8での開閉状態を検出する手段としては、図6に
示すように本出願人が先に提案した「高周波による接点
開閉状態検出装置」〔実願平3−12808号〕があ
る。例えば、運転用リレー接点X1〜X3及び表示用リ
レー接点X4に接点開閉状態検出装置D1〜D3,D4
を接続し、この接点開閉状態検出装置D1〜D3,D4
により、各リレー接点X1〜X3の開閉状態を出力信号
として取り出すことが可能である。In the embodiment described above, each relay contact X
As means for detecting the open / close state at 1 to X8, as shown in FIG. 6, there is a "contact open / closed state detecting apparatus using high frequency" proposed by the present applicant (Japanese Utility Model Application No. Hei 3-12808). For example, the operation relay contacts X1 to X3 and the display relay contact X4 have contact opening / closing state detection devices D1 to D3 and D4.
And the contact opening / closing state detecting devices D1 to D3, D4
Thus, the open / closed state of each of the relay contacts X1 to X3 can be extracted as an output signal.
【0021】この接点開閉状態検出装置D1〜D3,D
4の検出信号に基づいて、図7に示すようにリレーシー
ケンス回路3を構成する。このリレーシーケンス回路3
は、一つのリレーで開閉する複数のリレー接点のうち、
分担する動作項目から選択された二つの運転用リレー接
点DX1と表示用リレー接点DX4の両方の開閉状態を
比較することにより、接点状態を検出して軽故障か否か
を判定する。The contact opening / closing state detecting devices D1 to D3, D
Based on the detection signal of No. 4, the relay sequence circuit 3 is configured as shown in FIG. This relay sequence circuit 3
Is a relay relay that opens and closes with a single relay.
By comparing the open / close states of both the operation relay contact DX1 and the display relay contact DX4 selected from the assigned operation items, the contact state is detected to determine whether or not a minor failure has occurred.
【0022】以上で説明した実施例において、リレーシ
ーケンス回路1,3又はプログラマブルコントローラ2
の出力に、本出願人が先に提案した運転シーケンス一時
復旧装置〔特願平4−93259号〕を付設することに
より、動作機器の故障レベルが軽故障か否かを判定した
結果に基づいて、その故障レベルが軽故障であれば、運
転シーケンス一時復旧装置によって、動作機器を強制的
に運転再開させるが可能となる。In the embodiment described above, the relay sequence circuits 1 and 3 or the programmable controller 2
Is attached with the operation sequence temporary recovery device (Japanese Patent Application No. Hei 4-93259) previously proposed by the present applicant, based on the result of determining whether or not the failure level of the operating device is a minor failure. If the failure level is a minor failure, the operation sequence temporary recovery device can forcibly restart the operation of the operating device.
【0023】尚、本発明装置は、既存の設備である現状
の分電盤、制御盤にリレー接点開閉情報及び計器情報取
り込み装置、取り込み情報から故障原因判定や復旧方法
検索のためのPLC、故障原因、復旧方法を表示するた
めの表示装置、PLCと接続される外部記憶装置付きP
Cなどが付加される。具体的には、本発明装置における
水門のシーケンス制御装置は、手動操作器具〔押釦、切
り替えスイッチ〕、命令処理部〔電磁リレー、タイマ
ー〕、操作機器〔電磁接触器、遮断器〕、検出器〔検出
スイッチ、保護リレー〕及び表示、警報器具〔表示ラン
プ、ブザー、ベル〕から構成され、二値情報を発生させ
る接点の状態〔オン又はオフ〕を検知可能な監視装置を
組み込んで接点開閉情報を得て、水門の位置を検出する
開度計、電流を検出する電流計などの計測装置から計測
情報を取り込む装置を付加して計測情報を得る。The device of the present invention includes a relay contact opening / closing information and an instrument information capturing device on existing distribution boards and control panels which are existing facilities, a PLC for determining a cause of failure and searching for a recovery method from the captured information, Display device for displaying cause and recovery method, P with external storage device connected to PLC
C or the like is added. Specifically, the sequence control device of the water gate in the device of the present invention is a manual operation device (push button, changeover switch), a command processing unit (electromagnetic relay, timer), an operation device (electromagnetic contactor, circuit breaker), a detector ( It consists of a detection switch, protection relay), display and alarm equipment (indicator lamp, buzzer, bell), and incorporates a monitoring device that can detect the state of contacts (on or off) that generates binary information, and outputs contact opening and closing information. Then, measurement information is obtained by adding a device that takes in measurement information from a measurement device such as an opening meter that detects the position of the floodgate and an ammeter that detects the current.
【0024】検出器の故障は、位置検出スイッチの開閉
状態と開度計の計測情報、過電流リレーのリレー接点開
閉状態と電流計の計測情報及び電圧リレーのリレー接点
開閉状態を比較し規定のしきい値で検出器接点が作動し
ているかどうかを判定し、正常動作又は誤動作・不動作
の状態を診断する。手動操作器具及び電磁リレーの接点
については、ある操作を行なった時、これらの接点に故
障があれば、シーケンス設計された論理通りに接点群が
動作しない。従って、予め操作モードごとに正常な接点
開閉の動きを診断テーブルとして装置内に持ち、これと
監視接点の開閉情報を比較演算することにより接点の正
常又は不良を診断する。The failure of the detector is determined by comparing the open / closed state of the position detection switch and the measurement information of the opening meter, the relay contact open / close state of the overcurrent relay, the measurement information of the ammeter, and the relay contact open / closed state of the voltage relay. It is determined whether the detector contact is operating based on the threshold value, and a normal operation or a malfunction / non-operation state is diagnosed. Regarding the contacts of the manual operation device and the electromagnetic relay, when a certain operation is performed and these contacts have a failure, the contact group does not operate according to the sequence designed logic. Therefore, a normal contact opening / closing operation is previously stored in the apparatus as a diagnosis table for each operation mode, and the normal or defective contact is diagnosed by comparing and calculating this with the monitoring contact opening / closing information.
【0025】上述した診断マトリックスにより作成され
る診断情報としては、設備の運転モードごとの正常な状
態に対応する接点群の開閉状態及びその計器の数値情報
からなる運転状態、押釦操作前に成立すべき接点群の開
閉状態及びその計器の数値情報からなる運転条件、操作
ミスが発生した場合の接点群の開閉状態及びその計器の
数値情報からなる操作ミス状態、動力・制御電源異常が
発生した場合の接点群の開閉状態及びその計器の数値情
報からなる電源状態、監視接点群中の接点自身の不良を
検知するため、相互監視する補助接点の組み合わせ及び
それらの開閉状態からなる接点不良状態、接点不良以外
の故障が発生した場合、原因ごとに接点群の開閉状態及
びその計器の数値情報からなる故障状態などがあり、こ
れら各種の状態を表示し、又はその状態履歴を自動記録
できる。更に、これら故障原因別に復旧手段を対応させ
て診断マトリックスを作成したり、その診断マトリック
スをプログラム化し、実際に取り込まれたオンライン情
報の結果に対応する診断結果を検索・表示するようにす
ることも可能である。The diagnostic information created by the above-described diagnostic matrix includes the open / closed state of the contact group corresponding to the normal state in each operation mode of the equipment, the operation state composed of the numerical information of the instrument, and the condition established before the push button operation. The operating condition consisting of the opening / closing state of the contact group and the numerical information of the instrument, the operating state consisting of the opening / closing state of the contact group and the numerical information of the instrument when an operation error occurs, and the occurrence of a power / control power supply abnormality The power supply state consisting of the open / closed state of the contact group and the numerical information of the meter, the combination of auxiliary contacts to be monitored mutually to detect the failure of the contact itself in the monitoring contact group, the contact failure state consisting of their open / closed state, and the contacts When a failure other than a failure occurs, there are various conditions such as the open / close state of the contact group and the failure state consisting of numerical information of the instrument. Show, or the state history can be automatically recorded. Furthermore, a diagnosis matrix may be created by associating recovery means with each of these failure causes, or the diagnosis matrix may be programmed to search and display a diagnosis result corresponding to the result of the online information actually taken in. It is possible.
【0026】このように上記実施例では、情報をオンラ
インで取り込み診断結果を提供できるので、運転可否判
断、操作ミス、電源不良、接点不良、その他の故障及び
設備の設計時点で考慮されているバックアップ操作を含
めて復旧の手段を迅速かつ制御盤から離れた場所であっ
ても表示できる。As described above, in the above embodiment, since the information can be taken in online and the diagnosis result can be provided, it is possible to judge whether the operation is possible, operation error, power supply failure, contact failure, other failures, and the backup considered at the time of designing the equipment. Recovery means including operation can be displayed quickly and even at a place remote from the control panel.
【0027】尚、本発明は上述した実施例に限らず、リ
レーシーケンス制御される各種の機械設備に適用可能で
あるのは勿論である。It should be noted that the present invention is not limited to the above-described embodiment, but can be applied to various types of mechanical equipment controlled by a relay sequence.
【0028】[0028]
【発明の効果】本発明によれば、リレー接点の開閉によ
る動作機器のシーケンス制御中に動作機器が運転停止し
た時、その運転停止直前のリレー接点の開閉状態及び運
転要素から診断マトリックスに基づく判定結果により、
動作機器の故障レベルが軽故障か否かを判定するように
したから、リレー接点の接触状態だけでなく軽故障か否
かの故障レベルの判定が簡略化され、一つのリレーで開
閉する複数のリレー接点のうち、分担する動作項目から
選択された一方のリレー接点が正常状態、他方のリレー
接点が故障状態となるような相反する現象が生じても、
その故障レベルを迅速に判定することができ、熟練した
作業者に依存することなく、迅速な対処が実現可能とな
る。 According to the present invention, by opening and closing a relay contact,
The operation of the operating device stops during the sequence control of the operating device.
The operation of the relay contacts immediately before the
By based rather determination result in the diagnostic matrix from the rolling elements,
Since the failure level of the operating device is determined to be a minor failure, not only the contact state of the relay contacts but also the minor failure
Or failure level determination is simplified, a single relay opens
Of the multiple relay contacts that close,
One selected relay contact is normal, the other relay
Even if conflicting phenomena such as contact points failing occur,
The failure level can be quickly determined , and a quick response can be realized without depending on a skilled worker .
【図1】本発明方法を説明するためのもので、上限リミ
ットスイッチを例示した診断マトリックスを示す一覧表FIG. 1 is a table for explaining a method of the present invention and showing a diagnostic matrix illustrating an upper limit switch.
【図2】過電流継電器を例示した診断マトリックスを示
す一覧表FIG. 2 is a table showing a diagnostic matrix illustrating an overcurrent relay;
【図3】スピンドル式開閉装置を例示した診断マトリッ
クスを示す一覧表FIG. 3 is a list showing a diagnostic matrix exemplifying a spindle type switching device;
【図4】図1の診断マトリックスに基づいて構成したリ
レーシーケンス回路を示す回路図FIG. 4 is a circuit diagram showing a relay sequence circuit configured based on the diagnostic matrix of FIG. 1;
【図5】図3の診断マトリックスに基づいて構成したプ
ログラマブルコントローラを示す回路図FIG. 5 is a circuit diagram showing a programmable controller configured based on the diagnostic matrix of FIG. 3;
【図6】リレーシーケンス回路に高周波による接点開閉
状態検出装置を接続した場合を示す回路図FIG. 6 is a circuit diagram showing a case where a contact open / closed state detecting device using a high frequency is connected to the relay sequence circuit.
【図7】図6の接点開閉状態検出装置に基づいて構成さ
れたリレーシーケンス回路を示す回路図FIG. 7 is a circuit diagram showing a relay sequence circuit configured based on the contact open / closed state detection device of FIG. 6;
1,3 リレーシーケンス回路 2 プログラマブルコントローラ X1〜X3 リレー接点 D1〜D4 接点開閉状態検出装置 1,3 relay sequence circuit 2 programmable controller X1-X3 relay contact D1-D4 contact open / close state detection device
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI G05B 19/05 N (72)発明者 山田 義治 大阪府堺市出島西町3番地の1 株式会 社酒井鉄工所内 (56)参考文献 特開 昭57−5113(JP,A) 特開 平5−289718(JP,A) 実開 昭60−47008(JP,U) 実開 昭58−148851(JP,U) 実開 平4−102127(JP,U) (58)調査した分野(Int.Cl.6,DB名) G05B 23/02 302 G05B 9/02 G05B 19/10 G05B 19/048──────────────────────────────────────────────────続 き Continuing on the front page (51) Int.Cl. 6 Identification code FIG05B 19/05 N (72) Inventor Yoshiharu Yamada 3-1, Dejima Nishimachi, Sakai City, Osaka Prefecture 1 Inside Sakai Iron Works, Ltd. (56) Reference Reference JP-A-57-5113 (JP, A) JP-A-5-289718 (JP, A) Japanese Utility Model Application No. Sho 60-47008 (JP, U) Japanese Utility Model Application No. Sho 58-148851 (JP, U) Japanese Utility Model Application No. 4- 102127 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) G05B 23/02 302 G05B 9/02 G05B 19/10 G05B 19/048
Claims (1)
する複数のリレー接点のうち、分担する動作項目から選
択された二つのリレー接点の開閉状態を比較すると共に
前記動作機器の動作要素を判断基準とし、前記リレー接
点の開閉状態及び動作要素による判定結果を類別した診
断マトリックスを予め作成し、それらリレー接点の開閉
による動作機器のシーケンス制御中に動作機器が運転停
止した時、その運転停止直前のリレー接点の開閉状態及
び運転要素から前記診断マトリックスに基づく判定結果
により、動作機器の異常レベルを判定するようにしたこ
とを特徴とする異常レベル判定方法。1. Opening and closing with one relay in relation to operating equipment
Of the relay items to be shared,
Compare the open / closed state of the two selected relay contacts and
Using the operation element of the operation device as a criterion, the relay connection
A diagnostic matrix is created in advance that classifies the judgment result based on the open / closed state of the point and the operation element, and when the operation of the operation device is stopped during the sequence control of the operation device by opening and closing the relay contacts, immediately before the stop of the operation Switching status of relay contacts
Based rather determination result to the diagnostic matrix from the fine operating element
An abnormal level determination method for determining an abnormal level of an operating device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6075527A JP2771771B2 (en) | 1994-04-14 | 1994-04-14 | Error level judgment method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6075527A JP2771771B2 (en) | 1994-04-14 | 1994-04-14 | Error level judgment method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07281735A JPH07281735A (en) | 1995-10-27 |
JP2771771B2 true JP2771771B2 (en) | 1998-07-02 |
Family
ID=13578796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6075527A Expired - Lifetime JP2771771B2 (en) | 1994-04-14 | 1994-04-14 | Error level judgment method |
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JP (1) | JP2771771B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017004104A (en) * | 2015-06-05 | 2017-01-05 | 日本ユニシス株式会社 | Facility state monitoring system and facility state monitoring method |
JP6479719B2 (en) * | 2015-08-19 | 2019-03-06 | 株式会社東芝 | Inspection system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS575113A (en) * | 1980-06-11 | 1982-01-11 | Mazda Motor Corp | Detector for fault point of sequence control |
JPS58148851U (en) * | 1982-03-31 | 1983-10-06 | 東芝機械株式会社 | Relay check circuit |
JPS6047008U (en) * | 1983-09-09 | 1985-04-02 | 株式会社明電舎 | Sequence condition judgment device |
JP2512101Y2 (en) * | 1991-02-14 | 1996-09-25 | 株式会社酒井鉄工所 | High frequency contact open / close state detection device |
JPH05289718A (en) * | 1992-04-14 | 1993-11-05 | Sakai Tekkosho:Kk | Operation sequence temporary restoring device |
-
1994
- 1994-04-14 JP JP6075527A patent/JP2771771B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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JPH07281735A (en) | 1995-10-27 |
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