JP7286156B2 - Diagnosis device for security device in rope traction type transportation equipment - Google Patents

Diagnosis device for security device in rope traction type transportation equipment Download PDF

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JP7286156B2
JP7286156B2 JP2019164330A JP2019164330A JP7286156B2 JP 7286156 B2 JP7286156 B2 JP 7286156B2 JP 2019164330 A JP2019164330 A JP 2019164330A JP 2019164330 A JP2019164330 A JP 2019164330A JP 7286156 B2 JP7286156 B2 JP 7286156B2
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敏行 日比谷
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日本ケーブル株式会社
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Description

本発明は、索道や鋼索鉄道等の索条牽引式輸送設備において、設備の異常を検出する保安装置の診断装置に関する。 TECHNICAL FIELD The present invention relates to a diagnosis device for a safety device for detecting an abnormality in a cable traction type transportation facility such as a cableway or a steel cable railway.

索条牽引式輸送設備は、搬器や車両を索条に連結し、この索条を駆動することにより人や貨物を輸送する設備であり、各種の索道や鋼索鉄道として知られている。索条牽引式輸送設備においては、停留場に索条を巻き掛ける滑車を設置し、この滑車に連結した電動機を制御することにより滑車が回転して索条が駆動され、搬器や車両が線路中を移動する。 Cable traction type transportation facilities are facilities for transporting people and cargo by connecting carriers and vehicles to cables and driving the cables, and are known as various cableways and steel cable railways. In a cable traction type transport facility, a pulley is installed at a stop for winding a cable, and by controlling an electric motor connected to this pulley, the pulley rotates and the cable is driven, and the carriage and the vehicle are moved on the track. to move.

索条牽引式輸送設備には、運行の安全を確保するために各種の保安装置を備えている（例えば、特許文献１参照）。保安装置としては、例えば、乗客が定位置で降車できずに乗り越したことを検出する乗越検出器や、滑車の逆転を検出する逆転検出器、制動装置が開放していることを検出する制動装置開放検出器などがある。これらの検出器には各種のセンサやスイッチを備えており、各センサやスイッチの信号は、上記の電動機等を制御する制御装置に入力されている。そして、これらの保安装置が異常を検出すると、制御装置が電動機や制動機を制御して索条の駆動を停止するとともに、運転室や監視室に備えた表示器に異常箇所を表示するようにしている。 Cable traction type transportation facilities are equipped with various security devices to ensure safety of operation (see Patent Document 1, for example). Safety devices include, for example, an overpass detector that detects when a passenger cannot get off at a fixed position and has passed over, a reverse rotation detector that detects reverse rotation of the pulley, and a braking device that detects that the brake device is open. There are open detectors and the like. These detectors are equipped with various sensors and switches, and signals from each sensor and switch are input to a control device that controls the above electric motor and the like. When these safety devices detect an abnormality, the control device controls the electric motors and brakes to stop driving the cable, and displays the location of the abnormality on the displays provided in the driver's cab and monitoring room. ing.

特開２０１３－１３９２３１号公報JP 2013-139231 A

このような従来の技術においては、次のような問題があった。保安装置が動作して上記のように表示器に異常箇所が表示された場合には、係員が当該箇所へ行って異常の確認を行う。このときに、異常を示された箇所に何ら異常が認められない場合があり、このような場合には、センサやスイッチの故障等による保安装置自体の故障や、制御装置内部の電気的回路の故障が考えられ、これらの箇所を検査する必要がある。 Such conventional techniques have the following problems. When the safety device operates and an abnormal location is displayed on the display as described above, a staff member goes to the location and confirms the abnormality. At this time, there may be cases where no abnormality is found in the location where the abnormality was indicated. Failure is considered, and it is necessary to inspect these points.

しかしながら、保安装置が設置された機械装置等の場所と、制御装置が設置された運転室の場所とは距離が離れた位置にあり、また、保安装置が高い位置に設置されていることもある。したがって、係員はこれらの間を移動して検査を行わねばならず、検査を行うのにあたり係員の作業が煩雑なものになっていた。 However, the location of the machine where the safety device is installed and the location of the driver's cab where the control device is installed are located far apart, and the security device may be installed in a high position. . Therefore, the person in charge had to move between them to carry out the inspection, and the work of the person in charge was complicated when performing the inspection.

本発明は、このような事情に鑑みてなされたものであって、保安装置の検査作業を簡略化でき、効率的に検査を行うことができる索条牽引式輸送設備における保安装置の診断装置を提供することを目的としている。 SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and provides a diagnostic apparatus for safety devices in a cable towed transportation facility, which can simplify the inspection work of the safety devices and can perform the inspection efficiently. intended to provide.

請求項１の発明は、設備の異常を検出する保安装置と、該保安装置に接続回路により接続され前記保安装置の信号により動作する保安装置側リレーと、設備の運行を制御するＰＬＣの入力側に接続されて、前記保安装置側リレーの信号により動作するＰＬＣ側リレーと、前記ＰＬＣの入力側に接続された診断スイッチと、前記ＰＬＣの出力側と前記接続回路とを接続する診断回路とを備え、前記診断スイッチの信号により、前記保安装置の信号と同一の信号を前記ＰＬＣの出力側から前記診断回路へ出力することを特徴としている。 The invention of claim 1 comprises a safety device for detecting an abnormality in equipment, a safety device-side relay connected to the safety device by a connection circuit and operated by a signal from the safety device, and an input side of a PLC for controlling the operation of the equipment. A PLC side relay that is connected to and operated by a signal from the security device side relay, a diagnostic switch that is connected to the input side of the PLC, and a diagnostic circuit that connects the output side of the PLC and the connection circuit. It is characterized in that the same signal as the signal of the safety device is output from the output side of the PLC to the diagnostic circuit by the signal of the diagnostic switch.

本発明によれば、不具合要因が制御装置内にあるのか制御装置外にあるのかを識別して確認できるので、制御装置内外のいずれかを検査すれば良いため、保安装置の検査作業を簡略化することができ、検査を効率的に行うことができる。 According to the present invention, since it is possible to identify and confirm whether the defect factor is inside the control device or outside the control device, it is sufficient to inspect either the inside or the outside of the control device, which simplifies the inspection work of the safety device. can be used, and the inspection can be performed efficiently.

チェアリフトの設備全体を示す模式図Schematic diagram showing the entire chairlift equipment 保安装置と制御装置間の電気回路の概略図Schematic diagram of the electrical circuit between the security device and the control device モニターに表示された診断画面Diagnostic screen displayed on monitor

以下、本発明の具体的な実施の形態を図面を参照して説明する。図１は、索条牽引式輸送設備の代表例としてチェアリフトの設備全体を示す模式図である。起点停留場１０と終点停留場１１には、それぞれ折返し滑車１２と原動滑車１３とを回転自在に備え、これらの滑車１２、１３間に索条１４を無端状に張架している。線路中には地形に応じて支柱１５を立設し、索条１４を移動可能に支持している。終点停留場１１の原動滑車１３は、減速機１６及び電動機１７等からなる駆動装置に連結されており、これを駆動することにより原動滑車１３が回転して索条１４が線路に沿って循環移動する。終点停留場１１には制御装置１９が備えられており、これにより電動機１７等が制御される。索条１４には、椅子式の搬器１８が所定の間隔で取り付けられており、起点停留場１０と終点停留場１１との間で人員の輸送を行う。 Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing the overall equipment of a chairlift as a representative example of a cable traction type transportation equipment. A turn-around pulley 12 and a driving pulley 13 are rotatably provided at the start stop 10 and the end stop 11, respectively, and a rope 14 is stretched endlessly between these pulleys 12 and 13. - 特許庁Struts 15 are erected in the track according to the topography to movably support the cable 14. - 特許庁The driving pulley 13 of the terminal stop 11 is connected to a driving device comprising a reduction gear 16, an electric motor 17, etc. By driving this, the driving pulley 13 rotates and the cable 14 circulates along the track. do. The terminal stop 11 is provided with a control device 19, which controls the electric motor 17 and the like. Chair-type carriers 18 are attached to the rope 14 at predetermined intervals, and transport people between the start stop 10 and the end stop 11 .

各停留場１０、１１には、運行上の安全を確保するために各種の保安装置２０を備えている。保安装置２０には、例えば、乗客が定位置で降車できずに乗り越したことを検出する乗越検出器や、滑車の逆転を検出する逆転検出器、制動装置が開放していることを検出する制動装置開放検出器などがある。これらの保安装置２０には、リミットスイッチや近接スイッチ等のセンサを備えており、これらセンサの発信信号は、制御装置１９に入力される。いずれかの保安装置２０が異常を検知すると、この保安装置２０からの信号により制御装置１９は電動機１７を停止するとともに制動機を動作させて運行を停止し、運転盤等に備えたモニターに異常箇所を表示する。 Each stop 10, 11 is equipped with various security devices 20 to ensure safety during operation. The safety device 20 includes, for example, a ride-over detector that detects when a passenger cannot get off at a fixed position and has passed over, a reverse rotation detector that detects reverse rotation of the pulley, and a brake that detects that the brake device is open. There are device open detectors and the like. These security devices 20 are equipped with sensors such as limit switches and proximity switches, and transmission signals from these sensors are input to the control device 19 . When any of the security devices 20 detects an abnormality, the control device 19 stops the electric motor 17 and activates the brake in response to a signal from this security device 20 to stop the operation, and the monitor provided on the operation panel or the like detects the abnormality. Show the part.

図２は、保安装置２０と制御装置１９間の電気回路の概略図である。図においては、一つの保安装置２０についての回路構成を示しているが、各保安装置２０についてそれぞれ同様の回路が構成されている。制御装置１９内には、保安装置側リレー２１、制御装置側リレー２２とＰＬＣ（プログラマブル ロジック コントローラー）２３とを備えている。保安装置側リレー２１は、制御装置１９の外部に備えた保安装置２０へ接続回路２５を介して接続されており、保安装置２０が異常を検知して発する検出信号によりＯＦＦとなる。一方、ＰＬＣ２３の入力側には、制御装置側リレー２２が接続されており、保安装置側リレー２１がＯＦＦとなると制御装置側リレー２２がＯＦＦとなる。この信号を受けてＰＬＣ２３は、電動機１７の停止や制動機の作動など、チェアリフトの運行を停止する制御信号を出力側から発信する。 FIG. 2 is a schematic diagram of the electrical circuit between security device 20 and control device 19. As shown in FIG. Although the diagram shows the circuit configuration for one security device 20, the same circuit is configured for each security device 20. As shown in FIG. The control device 19 includes a safety device side relay 21 , a control device side relay 22 and a PLC (Programmable Logic Controller) 23 . The safety device side relay 21 is connected to a safety device 20 provided outside the control device 19 via a connection circuit 25, and is turned off by a detection signal issued by the safety device 20 upon detection of an abnormality. On the other hand, the control device side relay 22 is connected to the input side of the PLC 23, and when the security device side relay 21 is turned off, the control device side relay 22 is turned off. Receiving this signal, the PLC 23 transmits from the output side a control signal for stopping the operation of the chair lift, such as stopping the electric motor 17 and activating the brake.

また、ＰＬＣ２３の出力側には、接続回路２５に接続されている診断回路２４が形成されており、また、入力側には運転盤のモニターで操作する診断スイッチ２６が接続されている。そして、診断スイッチ２６が作動すると、保安装置２０が正常なときに発信する検出信号と同一の信号がＰＬＣ２３の出力側から診断回路２４へ出力される。 A diagnostic circuit 24 connected to a connection circuit 25 is formed on the output side of the PLC 23, and a diagnostic switch 26 operated on the monitor of the operation panel is connected to the input side. When the diagnostic switch 26 operates, the same signal as the detection signal that is transmitted when the safety device 20 is normal is output from the output side of the PLC 23 to the diagnostic circuit 24 .

以上の構成により、いずれかの保安装置２０から信号が発信されると上記したように保安装置側リレー２１がＯＦＦとなり、これにともなって制御装置側リレー２２がＯＦＦとなり、ＰＬＣ２３がこれを検知してリフトを停止するように制御を行いリフトが停止する。そして係員は、運転盤のモニターにて異常発生箇所を確認し、当該異常発生箇所に出向いて確認及び点検を行う。このときに、保安装置２０の設置箇所において実際には異常が発生していない場合には、上記回路に不具合要因があり、これを特定する必要がある。このような場合に係員は、次のようにして診断を行う。 With the above configuration, when a signal is transmitted from one of the safety devices 20, the safety device side relay 21 is turned OFF as described above, and the control device side relay 22 is accordingly turned OFF, and the PLC 23 detects this. control to stop the lift, and the lift stops. Then, the person in charge confirms the location where the abnormality occurred on the monitor of the operation panel, goes to the location where the abnormality occurs, and confirms and inspects the location. At this time, if an abnormality does not actually occur at the location where the security device 20 is installed, there is a malfunction factor in the above circuit, and it is necessary to specify this. In such a case, the person in charge makes a diagnosis as follows.

図３は、運転盤に備えたモニターに表示された診断画面である。モニター２７は、タッチパネル式のモニター２７であって、診断画面には、診断スイッチ２６と各保安装置２０に対応した状態表示記号２８とが表示されていおり、診断を行う場合に運転係員は、診断スイッチ２６にタッチして診断を開始する。診断スイッチ２６をタッチするとモニター２７からＰＬＣ２３へ信号が送信され、これを受信したＰＬＣ２３は、出力側から診断回路２４へ信号を送出する。これにより回路上では、擬似的に保安装置２０が正常に動作した状態となる。 FIG. 3 is a diagnostic screen displayed on a monitor provided on the operation panel. The monitor 27 is a touch panel type monitor 27, and the diagnostic screen displays a diagnostic switch 26 and a status display symbol 28 corresponding to each safety device 20. Touch switch 26 to start diagnosis. When the diagnostic switch 26 is touched, a signal is transmitted from the monitor 27 to the PLC 23, and the PLC 23 receiving this transmits a signal to the diagnostic circuit 24 from the output side. As a result, on the circuit, the safety device 20 is put into a state in which it operates normally.

制御装置１９内の回路が正常な場合には、保安装置側リレー２１及び制御装置側リレー２２が動作し、これによりＰＬＣ２３からモニター２７に信号が発信されて、モニター２７上の状態表示記号２８が、例えば青色に発色する。この表示により運転係員は、制御装置１９の外側の回路に不具合要因があることを知ることができる。反対に、制御装置１９内の断線や保安装置側リレー２１又は制御装置側リレー２２の故障などがあるとＰＬＣ２３に信号が入力されず、これをＰＬＣ２３が判定してモニター２７の状態表記記号２８が、例えば赤色に発色するように制御する。この表示により運転係員は、制御装置１９の内部の回路に不具合要因があることを知ることができる。 When the circuit in the control device 19 is normal, the safety device side relay 21 and the control device side relay 22 operate, whereby a signal is sent from the PLC 23 to the monitor 27, and the status display symbol 28 on the monitor 27 changes to , for example, a blue color. From this display, the operator can know that there is a malfunction factor in the circuit outside the control device 19 . On the other hand, if there is a disconnection in the control device 19 or a failure of the safety device side relay 21 or the control device side relay 22, the signal is not input to the PLC 23, and the PLC 23 determines this, and the status symbol 28 of the monitor 27 changes. , for example, is controlled to develop a red color. From this display, the operator can know that there is a malfunction factor in the internal circuit of the control device 19 .

このように本発明によれば、係員は回路上の不具合要因が制御装置１９内にあるのか、又は制御装置１９外にあるのかを容易に判断できるので、その後の検査作業を簡略化でき、効率的に検査を行うことができる。なお、上記の説明においては、索条牽引式輸送設備の一例としてチェアリフトを示したが、本発明は各種の索道や鋼索鉄道等にも適用することができる。 As described above, according to the present invention, the person in charge can easily determine whether the cause of the malfunction in the circuit is inside the control device 19 or outside the control device 19, so that subsequent inspection work can be simplified and efficient. can be inspected on a regular basis. In the above description, a chairlift is shown as an example of a cable traction type transportation facility, but the present invention can also be applied to various cableways, steel cable railways, and the like.

１０ 起点停留場
１１ 終点停留場
１２ 折返し滑車
１３ 原動滑車
１４ 索条
１５ 支柱
１６ 減速機
１７ 電動機
１８ 搬器
２０ 保安装置
２１ 保安装置側リレー
２２ 制御装置側リレー
２３ ＰＬＣ
２４ 診断回路
２５ 接続回路
２６ 診断スイッチ
２７ モニター
２８ 状態表示記号 10 Start stop 11 End stop 12 Turning pulley 13 Driving pulley 14 Rope 15 Strut 16 Reduction gear 17 Electric motor 18 Carriage 20 Safety device 21 Safety device side relay 22 Control device side relay 23 PLC
24 diagnostic circuit 25 connection circuit 26 diagnostic switch 27 monitor 28 status display symbol

Claims (1)

設備の異常を検出する保安装置と、該保安装置に接続回路により接続され前記保安装置の信号により動作する保安装置側リレーと、設備の運行を制御するＰＬＣの入力側に接続されて、前記保安装置側リレーの信号により動作する制御装置側リレーと、前記ＰＬＣの入力側に接続された診断スイッチと、前記ＰＬＣの出力側と前記接続回路とを接続する診断回路とを備え、前記診断スイッチの信号により、前記保安装置の信号と同一の信号を前記ＰＬＣの出力側から前記診断回路へ出力することを特徴とする索条牽引式輸送設備における保安装置の診断装置。 a security device for detecting an abnormality in equipment; a security device-side relay connected to the security device by a connection circuit and operated by a signal from the security device; A control device side relay operated by a signal of the device side relay, a diagnostic switch connected to the input side of the PLC, and a diagnostic circuit connecting the output side of the PLC and the connection circuit, wherein the diagnostic switch A diagnostic device for a security device in a cable traction type transportation facility, characterized in that, according to a signal, the same signal as the signal of the security device is output from the output side of the PLC to the diagnostic circuit.
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