WO2018020542A1 - Elevator control device - Google Patents

Elevator control device Download PDF

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Publication number
WO2018020542A1
WO2018020542A1 PCT/JP2016/071700 JP2016071700W WO2018020542A1 WO 2018020542 A1 WO2018020542 A1 WO 2018020542A1 JP 2016071700 W JP2016071700 W JP 2016071700W WO 2018020542 A1 WO2018020542 A1 WO 2018020542A1
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Prior art keywords
car
door zone
signal
brake
photoelectric sensor
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PCT/JP2016/071700
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French (fr)
Japanese (ja)
Inventor
潤 鳥谷部
山本　裕之
勇来 齊藤
直樹 高山
達志 藪内
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株式会社日立製作所
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Priority to CN201680085766.1A priority Critical patent/CN109153531B/en
Priority to JP2018530208A priority patent/JP6578066B2/en
Priority to PCT/JP2016/071700 priority patent/WO2018020542A1/en
Publication of WO2018020542A1 publication Critical patent/WO2018020542A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • B66B3/02—Position or depth indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions

Definitions

  • the present invention relates to an elevator control device that can display a door zone even when a passenger car is abnormally stopped due to various troubles and a rescue operation is performed.
  • an elevator inspector who rushed in response to the failure signal attaches a brake release device to the failed elevator, and uses a brake release power supply (for example, a battery) as the power supply. By releasing the brake, the passenger is rescued by moving the car in the heavy load direction using the unbalance of the car and the counterweight.
  • a brake release power supply for example, a battery
  • the speed of the car can be monitored during the brake releasing operation, and the power supply to the hoisting machine brake can be cut off when the preset speed is exceeded.
  • the encoder installed in the governor and the safety controller are used, so the encoder installed in the motor has failed without the need for a power cut-off circuit dedicated for brake release.
  • the brake can be released while monitoring the speed.
  • Patent Document 1 when the elevator car is moved by operating the brake to be released from a place where the elevator state cannot be directly monitored, the door zone, speed, and driving direction are known using a display device. ing. Such display devices are stipulated in European safety standards (EN standards), Chinese standards (GB standards), etc., and these standards include a method for displaying door zones using detection signals of photoelectric sensors for door zone detection. Is disclosed.
  • EN standards European safety standards
  • GB standards Chinese standards
  • these standards include a method for displaying door zones using detection signals of photoelectric sensors for door zone detection. Is disclosed.
  • Patent Document 1 the power supply to the photoelectric sensor for detecting the door zone is limited to the brake releasing operation using the brake releasing power source. Therefore, after the door zone is detected, the brake releasing operation is stopped and the car is stopped. In other words, during the rescue operation of the passenger, the photoelectric sensor is not supplied with power, and the door zone display on the display device is also turned off, so there is a problem that it cannot be determined whether the car is located in the door zone.
  • An object of the present invention is to provide an elevator control device that can display whether a car is located in a door zone even when power is not supplied from a battery to a photoelectric sensor.
  • An elevator control device for controlling an elevator comprising: a brake that brakes rotation of the electric motor; a control panel that controls the electric motor; and a photoelectric sensor for door zone detection that detects the position of the car.
  • the control panel is an elevator control device that displays the door zone on the display device based on the signal in the first input buffer that stores the output signal of the photoelectric sensor.
  • the door zone can be displayed even when the passenger is rescued by releasing the electric brake after the power supply is lost.
  • FIG. 1 shows the overall structure of an elevator that employs an elevator control apparatus according to one embodiment.
  • the elevator of this embodiment mainly includes a car 5, a main rope 12 that connects the car 5 and the counterweight 4, a driving force transmitted to the main rope 12, and the car 5 in the hoistway.
  • the motor 3 is moved roughly, the control panel 2 for controlling the motor 3 and the like, and the three-phase power source 1 which is a power source for supplying power to them.
  • the control panel 2 includes a safety controller 11 that controls various safety devices in addition to an operation controller that controls normal traveling of the elevator.
  • the safety controller 11 includes a photoelectric sensor 8 via a tail cord 10. Etc., and a signal from a governor encoder 6a described later is also transmitted. Further, the brake 3 b is controlled by the control panel 2 to brake the rotation of the electric motor 3.
  • the display device 9 is used by maintenance personnel when the car 5 is moved with the brake released, and by referring to each information of the door zone display, speed display, and driving direction display displayed here, Even from a place where the car 5 cannot be directly monitored, the brake release operation can be executed safely.
  • the “door zone” in the present embodiment is a zone within a certain range (for example, within a range of ⁇ 125 mm) based on the normal stop position at each stop floor of the car 5, and in this door zone, If the door is opened, the passenger can safely escape from the car 5 even if there are some steps.
  • the car 5 is speed feedback controlled based on a signal from the encoder 3a attached to the motor 3.
  • the photoelectric sensor 8 attached to the car 5 senses the distance from the shielding plate 7 provided on each stop floor of the car 5 to determine whether the car 5 is in the door zone.
  • the governor 6 which is a safety device for detecting the overspeed of the car 5 is provided with a governor encoder 6a, and a slip occurs between the electric motor 3 and the main rope 12, and based on a signal from the encoder 3a. Even when the speed of the car 5 or the like cannot be accurately obtained, the safety controller 11 can calculate the absolute position and speed of the car 5 from the output signal 96 of the governor encoder 6a.
  • FIG. 2 is a diagram for explaining a detailed circuit required when the display device 9 performs door zone display during the brake release operation and after the brake release operation.
  • the brake release permission switch 92 connected to the battery 91 provided separately from the three-phase power supply 1 is operated when the inspector starts releasing the brake, and in conjunction with the operation of this switch.
  • the two contacts 92a and 92b are turned on or off.
  • the brake release permission switch 92 is turned on, the brake release contactor coil 94a connected in series to the contact 92a is excited, and the contact 94b of the brake release contactor coil 94a is turned on.
  • the contact 92b interlocked with the brake release permission switch 92 is also ON. Therefore, the contact 93 of the photoelectric sensor 8 for detecting the door zone connected in series therewith. Is also effective.
  • the contact 93 outputs a signal indicating that it is in the door zone, and a safety controller input buffer for detecting the door zone. (Hereinafter, input buffer 95).
  • the input buffer 95 can be read from the safety controller 11 even when the photoelectric sensor 8 is not supplied with power.
  • the output signal 96 of the governor encoder 6a driven by the 24V power source indicated by P24 in FIG. 2 is stored in the governor encoder safety controller input buffer (hereinafter, input buffer 97).
  • input buffer 97 the governor encoder safety controller input buffer
  • the input buffer 95 and the input buffer 97 are built in the safety controller 11, but both input buffers may be built in the display device 9 as long as the safety controller 11 can refer to them.
  • the safety controller 11 determines whether the car 5 has reached the door zone from the output signal 96 of the contact 93 stored in the input buffer 95 and the output signal 96 of the governor encoder 6 a stored in the input buffer 97, The absolute position of 5 is calculated.
  • the buzzer 94d sounds to notify that the car 5 has reached the door zone.
  • the door zone display during rescue of passengers will be specifically described with reference to the flowchart of FIG. Here, it is assumed that the brakes are mechanically released and the passengers in the car 5 are rescued, and the three-phase power source 1 as the power source is OFF (S100).
  • the maintenance staff rushed in response to the failure signal confirms whether the car 5 is located in the door zone, and if it is not located in the door zone, it is necessary to move the car 5 downward using the brake release. Judgment is made (S101). If it is determined that the brake needs to be released, the maintenance staff turns on the brake release permission switch 92 (S102).
  • the brake opening contactor coil 94a is excited and the contact 94b is turned on (S103).
  • the contact 94b is turned ON, a current flows through the brake coil, the brake is released, and the car 5 moves downward (S104).
  • the contact 93 of the photoelectric sensor 8 is turned ON (S105).
  • a signal indicating that the contact 93 is turned on is stored in the input buffer 95 in the safety controller 11 (S106).
  • the output buffer 99 When the output signal of the photoelectric sensor 8 is stored in the input buffer 95, the output buffer 99 is turned on and the door zone display LED 98 is lit (S107). At this time, since the safety controller 11 takes in the output signal 96 of the governor encoder 6a from the information in the input buffer 97 and calculates the absolute position of the car 5, it can be determined whether the car 5 remains in the door zone. is there.
  • the output buffer 99 is kept on, so that the door zone display LED 98 continues to be lit (Y in S108). ).
  • the door zone display LED 98 is turned off (S112). That is, in this embodiment, the output signal 96 of the governor encoder 6a is used for determining whether the door zone display LED 98 is turned off.
  • the door zone display LED 98 is turned over based on the stored contents of the input buffer 95 and the input buffer 97 (S109). Even when 92 is OFF, that is, when there is no power supply from the battery 91, the door zone display can be continued.
  • the door zone can be displayed even when the passenger is rescued by releasing the electric brake after the power supply is lost.

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

The purpose of the present invention is to provide an elevator control device capable of discriminating whether or not a car is present in a door zone without using a magnetic sensor that requires no power source, or using a means for continuing the supply of battery power to a photoelectric sensor. To achieve this, this elevator control device controls an elevator comprising: a car which travels in a hoistway; a balance weight which is connected to the car by a main rope; an electric motor which is driven by a three-phase power source, and transmits drive to the main rope; a brake which brakes the rotation of the electric motor; a control panel which controls the electric motor; and a photoelectric sensor for door zone detection which detects the position of the car. The control panel displays the door zone on a display device on the basis of signals in a first input buffer in which the output signal of the photoelectric sensor is stored.

Description

エレベータ制御装置Elevator control device
　本発明は、各種トラブルにより乗客を乗せたまま乗りかごが異常停止し、救出作業を行うときであってもドアゾーンを表示できるエレベータ制御装置に関する。 The present invention relates to an elevator control device that can display a door zone even when a passenger car is abnormally stopped due to various troubles and a rescue operation is performed.
　従来のエレベータ制御装置として、特許文献１に記載のものが知られており、その段落００３６～００４２等には、以下の記載がある。 As a conventional elevator control device, the one described in Patent Document 1 is known, and paragraphs 0036 to 0042 and the like include the following description.
　階と階の間で再起動できない故障がエレベータに生じた場合、故障信号を受けて駆けつけたエレベータ点検員が故障したエレベータにブレーキ開放装置を取り付け、ブレーキ開放用電源（例えば、バッテリ）を電源としたブレーキ開放操作によって、乗りかごと釣合い錘のアンバランスを利用して乗りかごを重負荷方向に移動させることで乗客を救出する。 If an elevator failure occurs that cannot be restarted between floors, an elevator inspector who rushed in response to the failure signal attaches a brake release device to the failed elevator, and uses a brake release power supply (for example, a battery) as the power supply. By releasing the brake, the passenger is rescued by moving the car in the heavy load direction using the unbalance of the car and the counterweight.
　また、この際、ブレーキ開放操作中に乗りかごの速度を監視し、予め設定した速度を超過した場合に、巻上機ブレーキへの電源供給を遮断することができる。このように、電子安全システムを適用したエレベータにおいて、ガバナに設置したエンコーダと安全コントローラを用いることにより、ブレーキ開放専用の電力遮断回路を必要とすることなく、かつ、電動機に設置したエンコーダが故障した場合においても速度を監視しながらブレーキ開放操作を可能としている。 Also, at this time, the speed of the car can be monitored during the brake releasing operation, and the power supply to the hoisting machine brake can be cut off when the preset speed is exceeded. In this way, in an elevator that uses an electronic safety system, the encoder installed in the governor and the safety controller are used, so the encoder installed in the motor has failed without the need for a power cut-off circuit dedicated for brake release. In some cases, the brake can be released while monitoring the speed.
　なお、特許文献１に明示はないが、エレベータ状態を直接監視できない場所からブレーキ開放操作してエレベータ乗りかごを動かす場合は、表示装置を用いて、ドアゾーン、速度、運転方向を知ることが行われている。このような表示装置は欧州安全規格（ＥＮ規格）や中国標準規格（ＧＢ規格）などに規定されており、これらの規格には、ドアゾーン検出用の光電センサの検出信号を用いてドアゾーン表示する方法が開示されている。 Although not explicitly disclosed in Patent Document 1, when the elevator car is moved by operating the brake to be released from a place where the elevator state cannot be directly monitored, the door zone, speed, and driving direction are known using a display device. ing. Such display devices are stipulated in European safety standards (EN standards), Chinese standards (GB standards), etc., and these standards include a method for displaying door zones using detection signals of photoelectric sensors for door zone detection. Is disclosed.
ＷＯ２０１５／０９３２１７WO2015 / 093217
　しかしながら、特許文献１の場合、ドアゾーン検出用の光電センサへの電源供給は、ブレーキ開放用電源を用いるブレーキ開放動作中に限定されるため、ドアゾーン検出後にブレーキ開放動作を止め乗りかごが停止状態にあると、すなわち、乗客の救出作業中は、光電センサに電源供給されず、表示装置へのドアゾーン表示もＯＦＦとなるため、乗りかごがドアゾーンに位置しているのか判別できないという問題があった。 However, in the case of Patent Document 1, the power supply to the photoelectric sensor for detecting the door zone is limited to the brake releasing operation using the brake releasing power source. Therefore, after the door zone is detected, the brake releasing operation is stopped and the car is stopped. In other words, during the rescue operation of the passenger, the photoelectric sensor is not supplied with power, and the door zone display on the display device is also turned off, so there is a problem that it cannot be determined whether the car is located in the door zone.
　このため、従来は、電源を必要としない磁気式センサや、ブレーキ開放時においてもドアゾーン検出用の光電センサに対して継続して電源供給するバッテリおよび回路を組み合わせて用いていた。 For this reason, conventionally, a magnetic sensor that does not require a power source and a battery and a circuit that continuously supply power to the photoelectric sensor for detecting the door zone even when the brake is released have been used in combination.
　本発明は、バッテリから光電センサへ電源供給しない場合であっても、乗りかごがドアゾーンに位置しているのかを表示できるエレベータ制御装置を提供することを目的とする。 An object of the present invention is to provide an elevator control device that can display whether a car is located in a door zone even when power is not supplied from a battery to a photoelectric sensor.
　前記課題を解決するために、昇降路内を運行する乗りかごと、該乗りかごと主ロープで接続された釣り合いおもりと、三相電源により駆動され、前記主ロープに駆動力を伝える電動機と、該電動機の回転を制動するブレーキと、前記電動機を制御する制御盤と、前記乗りかごの位置を検出するドアゾーン検出用の光電センサと、を備えたエレベータを制御するエレベータ制御装置であって、前記制御盤は、前記光電センサの出力信号を記憶した第一の入力バッファ内の信号に基づいて、表示装置にドアゾーン表示するエレベータ制御装置とした。 In order to solve the above problems, a car that runs in a hoistway, a counterweight connected to the main car with the car, a motor that is driven by a three-phase power source and transmits the driving force to the main rope, An elevator control device for controlling an elevator, comprising: a brake that brakes rotation of the electric motor; a control panel that controls the electric motor; and a photoelectric sensor for door zone detection that detects the position of the car. The control panel is an elevator control device that displays the door zone on the display device based on the signal in the first input buffer that stores the output signal of the photoelectric sensor.
　本発明によれば、動力電源の喪失後、電気式ブレーキ開放によって、乗客を救出しているときであっても、ドアゾーンを表示することができる。 According to the present invention, the door zone can be displayed even when the passenger is rescued by releasing the electric brake after the power supply is lost.
一実施例のエレベータの全体概略図である。It is the whole elevator schematic of one Example. 一実施例のエレベータ制御装置の詳細図である。It is detail drawing of the elevator control apparatus of one Example. 一実施例のエレベータ制御装置で採用されるドアゾーン表示のフローチャートである。It is a flowchart of the door zone display employ | adopted with the elevator control apparatus of one Example.
　以下、本発明の実施例を、図１～図３に従い説明する。 Hereinafter, embodiments of the present invention will be described with reference to FIGS.
　図１は、一実施例のエレベータ制御装置を採用したエレベータの全体構造である。ここに示すように、本実施例のエレベータは、主として、乗りかご５と、乗りかご５と釣り合いおもり４を連結する主ロープ１２と、主ロープ１２に駆動力を伝え乗りかご５を昇降路内で移動させる電動機３と、電動機３等を制御する制御盤２と、これらに電源供給する動力電源である三相電源１から概略構成される。 FIG. 1 shows the overall structure of an elevator that employs an elevator control apparatus according to one embodiment. As shown here, the elevator of this embodiment mainly includes a car 5, a main rope 12 that connects the car 5 and the counterweight 4, a driving force transmitted to the main rope 12, and the car 5 in the hoistway. The motor 3 is moved roughly, the control panel 2 for controlling the motor 3 and the like, and the three-phase power source 1 which is a power source for supplying power to them.
　また、制御盤２は、エレベータの通常走行を制御する運行コントローラに加え、種々の安全装置を制御する安全コントローラ１１を備えており、安全コントローラ１１には、テールコード１０を経由して光電センサ８等からの信号が伝達され、後述するガバナエンコーダ６ａからの信号も伝達される。さらに、制御盤２によってブレーキ３ｂが制御され電動機３の回転を制動する。 The control panel 2 includes a safety controller 11 that controls various safety devices in addition to an operation controller that controls normal traveling of the elevator. The safety controller 11 includes a photoelectric sensor 8 via a tail cord 10. Etc., and a signal from a governor encoder 6a described later is also transmitted. Further, the brake 3 b is controlled by the control panel 2 to brake the rotation of the electric motor 3.
　表示装置９は、ブレーキ開放して乗りかご５を移動させる際に保守員が利用するものであり、ここに表示される、ドアゾーン表示、速度表示、運転方向表示の各情報を参照することで、乗りかご５を直接監視できない場所からであっても、ブレーキ開放操作を安全に実行できる。ここで、本実施例における「ドアゾーン」とは、乗りかご５の各停止階での正常停止位置を基準とした一定の範囲内（例えば、±１２５ｍｍの範囲内）のゾーンであり、このドアゾーンでドアを開放すれば多少の段差があるとしても、乗客は乗りかご５から安全に脱出することができる。 The display device 9 is used by maintenance personnel when the car 5 is moved with the brake released, and by referring to each information of the door zone display, speed display, and driving direction display displayed here, Even from a place where the car 5 cannot be directly monitored, the brake release operation can be executed safely. Here, the “door zone” in the present embodiment is a zone within a certain range (for example, within a range of ± 125 mm) based on the normal stop position at each stop floor of the car 5, and in this door zone, If the door is opened, the passenger can safely escape from the car 5 even if there are some steps.
　各種トラブルが生じていない通常時は、電動機３に取り付けたエンコーダ３ａからの信号に基づき、乗りかご５が速度フィードバック制御されている。また、乗りかご５に取り付けた光電センサ８は、乗りかご５の各停止階に設けられている遮蔽板７との距離を感知して、乗りかご５がドアゾーンにいるかを判断している。 During normal times when various troubles have not occurred, the car 5 is speed feedback controlled based on a signal from the encoder 3a attached to the motor 3. The photoelectric sensor 8 attached to the car 5 senses the distance from the shielding plate 7 provided on each stop floor of the car 5 to determine whether the car 5 is in the door zone.
　また、乗りかご５の過速を検出する安全装置であるガバナ６には、ガバナエンコーダ６ａが取り付けられており、電動機３と主ロープ１２の間ですべりが生じ、エンコーダ３ａからの信号に基づいて乗りかご５の速度などを正確に求めることができないときであっても、安全コントローラ１１は、ガバナエンコーダ６ａの出力信号９６からも乗りかご５の絶対位置や速度を算出できる。 Further, the governor 6 which is a safety device for detecting the overspeed of the car 5 is provided with a governor encoder 6a, and a slip occurs between the electric motor 3 and the main rope 12, and based on a signal from the encoder 3a. Even when the speed of the car 5 or the like cannot be accurately obtained, the safety controller 11 can calculate the absolute position and speed of the car 5 from the output signal 96 of the governor encoder 6a.
　図２は、ブレーキ開放動作中、および、ブレーキ開放動作後に、表示装置９がドアゾーン表示を行うときに必要とされる詳細回路を説明する図である。 FIG. 2 is a diagram for explaining a detailed circuit required when the display device 9 performs door zone display during the brake release operation and after the brake release operation.
　機器故障や停電などの各種トラブルにより乗客を乗せたまま乗りかご５が異常停止した場合、三相電源１からの電源供給を受けずに、乗りかご５を最寄のドアゾーンに移動させ、乗客を救出しなければならない場合がある。特許文献１でも説明される電気的なブレーキ開放によりこれを実現できるが、図２に示す本実施例のブレーキ開放回路は、次の構成に特徴を有する。 If the car 5 stops abnormally due to various troubles such as equipment failure or power failure, the car 5 is moved to the nearest door zone without receiving power from the three-phase power supply 1 and You may need to rescue. This can be realized by the electric brake release described in Patent Document 1, but the brake release circuit of the present embodiment shown in FIG. 2 is characterized by the following configuration.
　すなわち、三相電源１とは別個に設けられたバッテリ９１に接続されたブレーキ開放許可スイッチ９２は、点検者がブレーキ開放を開始する際に操作するものであり、このスイッチの操作に連動して二つの接点９２ａ、９２ｂがＯＮまたはＯＦＦされる。このブレーキ開放許可スイッチ９２がＯＮされると、接点９２ａに直列接続されたブレーキ開放用コンタクタコイル９４ａが励磁され、ブレーキ開放用コンタクタコイル９４ａの接点９４ｂがＯＮする。これにより、ブレーキコイル９４ｃに電流が流れて、ブレーキ３ｂが解除され（ブレーキ開放し）、乗りかご５が下方に移動する。 That is, the brake release permission switch 92 connected to the battery 91 provided separately from the three-phase power supply 1 is operated when the inspector starts releasing the brake, and in conjunction with the operation of this switch. The two contacts 92a and 92b are turned on or off. When the brake release permission switch 92 is turned on, the brake release contactor coil 94a connected in series to the contact 92a is excited, and the contact 94b of the brake release contactor coil 94a is turned on. As a result, current flows through the brake coil 94c, the brake 3b is released (brake is released), and the car 5 moves downward.
　ブレーキ開放によって乗りかご５が下方に移動しているときには、ブレーキ開放許可スイッチ９２と連動する接点９２ｂもＯＮとなっているため、これに直列に接続されたドアゾーン検出用の光電センサ８の接点９３も有効となっている。乗りかご５が下方に移動し、光電センサ８が各停止階に設けられている遮蔽板７を検出すると、接点９３はドアゾーンにいることを示す信号を出力し、ドアゾーン検出用の安全コントローラ入力バッファ（以下、入力バッファ９５）に記憶される。この入力バッファ９５は、光電センサ８に電源が供給されていないときであっても安全コントローラ１１から読み取り可能なものである。 When the car 5 is moving downward due to the release of the brake, the contact 92b interlocked with the brake release permission switch 92 is also ON. Therefore, the contact 93 of the photoelectric sensor 8 for detecting the door zone connected in series therewith. Is also effective. When the car 5 moves downward and the photoelectric sensor 8 detects the shielding plate 7 provided on each stop floor, the contact 93 outputs a signal indicating that it is in the door zone, and a safety controller input buffer for detecting the door zone. (Hereinafter, input buffer 95). The input buffer 95 can be read from the safety controller 11 even when the photoelectric sensor 8 is not supplied with power.
　また、図２においてＰ２４で示す２４Ｖ電源によって駆動されるガバナエンコーダ６ａの出力信号９６は、ガバナエンコーダ用安全コントローラ入力バッファ（以下、入力バッファ９７）に記憶される。なお、本実施例では、入力バッファ９５や入力バッファ９７を安全コントローラ１１に内蔵したが、安全コントローラ１１から参照できるのであれば、両入力バッファを表示装置９に内蔵しても良い。 Further, the output signal 96 of the governor encoder 6a driven by the 24V power source indicated by P24 in FIG. 2 is stored in the governor encoder safety controller input buffer (hereinafter, input buffer 97). In this embodiment, the input buffer 95 and the input buffer 97 are built in the safety controller 11, but both input buffers may be built in the display device 9 as long as the safety controller 11 can refer to them.
　安全コントローラ１１は、入力バッファ９５に記憶された接点９３の出力信号や、入力バッファ９７に記憶されたガバナエンコーダ６ａの出力信号９６から、乗りかご５がドアゾーンに到達したかの判断や、乗りかご５の絶対位置を算出する。 The safety controller 11 determines whether the car 5 has reached the door zone from the output signal 96 of the contact 93 stored in the input buffer 95 and the output signal 96 of the governor encoder 6 a stored in the input buffer 97, The absolute position of 5 is calculated.
　また、これらの算出結果はドアゾーン表示許可用出力バッファ（以下、出力バッファ９９）にも記憶され、ここに記憶された内容に応じて、表示装置９に設けられたドアゾーン表示用ＬＥＤ９８が点灯あるいは消灯する。 These calculation results are also stored in a door zone display permission output buffer (hereinafter, output buffer 99), and a door zone display LED 98 provided in the display device 9 is turned on or off according to the stored contents. To do.
　なお、光電センサ８がドアゾーンを検出し、接点９３が信号を出力すると、ブザー９４ｄが鳴動して乗りかご５が当該のドアゾーンに到達したことが報知される。 When the photoelectric sensor 8 detects the door zone and the contact 93 outputs a signal, the buzzer 94d sounds to notify that the car 5 has reached the door zone.
　図３のフローチャートを用いて、乗客救出中のドアゾーン表示を具体的に説明する。ここでは、機械的にブレーキを開放して、乗りかご５内の乗客を救出する場合を想定しており、動力電源である三相電源１がＯＦＦであるものとする（Ｓ１００）。 The door zone display during rescue of passengers will be specifically described with reference to the flowchart of FIG. Here, it is assumed that the brakes are mechanically released and the passengers in the car 5 are rescued, and the three-phase power source 1 as the power source is OFF (S100).
　故障信号を受けて駆け付けた保守員は、乗りかご５がドアゾーンに位置しているかを確認し、ドアゾーンに位置していない場合に、ブレーキ開放を利用した乗りかご５の下方への移動が必要と判断する（Ｓ１０１）。ブレーキ開放要と判断すると、保守員はブレーキ開放許可スイッチ９２をＯＮにする（Ｓ１０２）。 The maintenance staff rushed in response to the failure signal confirms whether the car 5 is located in the door zone, and if it is not located in the door zone, it is necessary to move the car 5 downward using the brake release. Judgment is made (S101). If it is determined that the brake needs to be released, the maintenance staff turns on the brake release permission switch 92 (S102).
　これにより、図２で説明したように、ブレーキ開放用コンタクタコイル９４ａが励磁されて、接点９４ｂがＯＮになる（Ｓ１０３）。接点９４ｂがＯＮすることで、ブレーキコイルに電流が流れ、ブレーキ開放し、乗りかご５が下方に移動する（Ｓ１０４）。その後、乗りかご５の光電センサ８が遮蔽板７を検出すると光電センサ８の接点９３がＯＮとなる（Ｓ１０５）。接点９３がＯＮになると、安全コントローラ１１内の入力バッファ９５に接点９３がＯＮになったことを示す信号が記憶される（Ｓ１０６）。 Thereby, as described in FIG. 2, the brake opening contactor coil 94a is excited and the contact 94b is turned on (S103). When the contact 94b is turned ON, a current flows through the brake coil, the brake is released, and the car 5 moves downward (S104). Thereafter, when the photoelectric sensor 8 of the car 5 detects the shielding plate 7, the contact 93 of the photoelectric sensor 8 is turned ON (S105). When the contact 93 is turned on, a signal indicating that the contact 93 is turned on is stored in the input buffer 95 in the safety controller 11 (S106).
　この入力バッファ９５に光電センサ８の出力信号が記憶されると、出力バッファ９９がＯＮとなり、ドアゾーン表示用ＬＥＤ９８が点灯する（Ｓ１０７）。このとき、安全コントローラ１１は入力バッファ９７内の情報からガバナエンコーダ６ａの出力信号９６も取り込み乗りかご５の絶対位置を算出しているため、乗りかご５がドアゾーンに留まっているかの判断が可能である。 When the output signal of the photoelectric sensor 8 is stored in the input buffer 95, the output buffer 99 is turned on and the door zone display LED 98 is lit (S107). At this time, since the safety controller 11 takes in the output signal 96 of the governor encoder 6a from the information in the input buffer 97 and calculates the absolute position of the car 5, it can be determined whether the car 5 remains in the door zone. is there.
　従って、入力バッファ９５に加えて、ドアゾーンに位置することを示す信号が入力バッファ９７に記憶されている場合も、出力バッファ９９をＯＮ継続するので、ドアゾーン表示用ＬＥＤ９８が点灯し続ける（Ｓ１０８のＹ）。 Therefore, in addition to the input buffer 95, even when a signal indicating that the vehicle is located in the door zone is stored in the input buffer 97, the output buffer 99 is kept on, so that the door zone display LED 98 continues to be lit (Y in S108). ).
　一方、ドアゾーンに位置することを示す信号が入力バッファ９７に記憶されていない場合（乗りかご５がドアゾーンを外れたことを示す信号が入力バッファ９７に記憶されている場合（Ｓ１０８のＮ））は、ドアゾーン表示用ＬＥＤ９８を消灯する（Ｓ１１２）。すなわち、本実施例では、ガバナエンコーダ６ａの出力信号９６をドアゾーン表示用ＬＥＤ９８の消灯判断に利用している。 On the other hand, when the signal indicating that the vehicle is located in the door zone is not stored in the input buffer 97 (when the signal indicating that the car 5 is out of the door zone is stored in the input buffer 97 (N in S108)). The door zone display LED 98 is turned off (S112). That is, in this embodiment, the output signal 96 of the governor encoder 6a is used for determining whether the door zone display LED 98 is turned off.
　なお、本実施例においては、ブレーキ開放許可スイッチ９２の状態にかかわらず、入力バッファ９５と入力バッファ９７の記憶内容に基づいてドアゾーン表示用ＬＥＤ９８を転倒させている（Ｓ１０９）ので、ブレーキ開放許可スイッチ９２がＯＦＦの状態、すなわち、バッテリ９１からの電源供給がない場合であっても、ドアゾーン表示を継続することができる。 In this embodiment, regardless of the state of the brake release permission switch 92, the door zone display LED 98 is turned over based on the stored contents of the input buffer 95 and the input buffer 97 (S109). Even when 92 is OFF, that is, when there is no power supply from the battery 91, the door zone display can be continued.
　また、救出運転完了後に乗りかご５が移動してドアゾーンを抜けた場合、つまり、光電センサ８の接点９３からの入力信号が一定時間以内にＯＮからＯＦＦに変化したＯＦＦエッジを検出して（Ｓ１１１）、ドアゾーン表示用ＬＥＤ９８が消灯する（Ｓ１１２）。これら技術を用いて、救出運転完了後は、自動運転へ復帰することができる（Ｓ１１３）。 In addition, when the car 5 moves and exits the door zone after the rescue operation is completed, that is, an OFF edge in which the input signal from the contact 93 of the photoelectric sensor 8 changes from ON to OFF within a certain time is detected (S111). ), The door zone display LED 98 is turned off (S112). Using these techniques, after the rescue operation is completed, it is possible to return to the automatic operation (S113).
　以上で説明した本実施例のエレベータ制御装置によれば、動力電源の喪失後、電気式ブレーキ開放によって、乗客を救出しているときであっても、ドアゾーンを表示することができる。 According to the elevator control device of the present embodiment described above, the door zone can be displayed even when the passenger is rescued by releasing the electric brake after the power supply is lost.
１…三相電源，２…制御盤，３…電動機，３ａ…エンコーダ，３ｂ…ブレーキ，４…釣り合いおもり，５…乗りかご，６…ガバナ，６ａ…ガバナエンコーダ，７…遮蔽板，８…光電センサ，９…表示装置，９１…バッテリ，９２…ブレーキ開放許可スイッチ，９２ａ、９２ｂ…接点，９３…接点，９４ａ…ブレーキ開放用コンタクタコイル，９４ｂ…接点，９４ｃ…ブレーキコイル，９４ｄ…ブザー，９５…入力バッファ，９６…出力信号，９７…入力バッファ，９８…ドアゾーン表示用ＬＥＤ，９９…出力バッファ，１０…テールコード，１１…安全コントローラ，１２…主ロープ DESCRIPTION OF SYMBOLS 1 ... Three-phase power supply, 2 ... Control panel, 3 ... Electric motor, 3a ... Encoder, 3b ... Brake, 4 ... Counterweight, 5 ... Riding car, 6 ... Governor, 6a ... Governor encoder, 7 ... Shield plate, 8 ... Photoelectric Sensor, 9 ... Display device, 91 ... Battery, 92 ... Brake release permission switch, 92a, 92b ... Contact, 93 ... Contact, 94a ... Brake release contactor coil, 94b ... Contact, 94c ... Brake coil, 94d ... Buzzer, 95 ... Input buffer, 96 ... Output signal, 97 ... Input buffer, 98 ... LED for door zone display, 99 ... Output buffer, 10 ... Tail code, 11 ... Safety controller, 12 ... Main rope

Claims (4)

  1. 　昇降路内を運行する乗りかごと、
    　該乗りかごと主ロープで接続された釣り合いおもりと、
    　三相電源により駆動され、前記主ロープに駆動力を伝える電動機と、
    　該電動機の回転を制動するブレーキと、
    　前記電動機を制御する制御盤と、
    　前記乗りかごの位置を検出するドアゾーン検出用の光電センサと、
    　を備えたエレベータを制御するエレベータ制御装置であって、
    　前記制御盤は、前記光電センサの出力信号を記憶した第一の入力バッファ内の信号に基づいて、表示装置にドアゾーン表示することを特徴とするエレベータ制御装置。     A car that runs in the hoistway,
    A counterweight connected by the main rope with the car,
    An electric motor driven by a three-phase power source and transmitting the driving force to the main rope;
    A brake for braking the rotation of the motor;
    A control panel for controlling the electric motor;
    A photoelectric sensor for door zone detection for detecting the position of the car;
    An elevator control device for controlling an elevator equipped with
    The control panel displays a door zone on a display device based on a signal in a first input buffer storing an output signal of the photoelectric sensor.
  2. 　請求項１に記載のエレベータ制御装置において、
    　さらに、前記乗りかごの過速を検出するガバナと、
    　該ガバナに設けられたガバナエンコーダと、
    　を備えており、
    　前記制御盤は、前記ガバナエンコーダの出力信号を記憶した第二の入力バッファ内の信号に基づいて、前記表示装置にドアゾーン表示することを特徴とするエレベータ制御装置。     In the elevator control device according to claim 1,
    Furthermore, a governor for detecting an overspeed of the car,
    A governor encoder provided in the governor;
    With
    The control panel displays a door zone on the display device based on a signal in a second input buffer storing an output signal of the governor encoder.
  3. 　請求項２に記載のエレベータ制御装置において、
    　前記第一のバッファ内の信号と前記第二のバッファ内の信号がともにドアゾーンを示す信号であった場合に、前記表示装置のドアゾーン表示を点灯し、
    　前記第一のバッファ内の信号と前記第二のバッファ内の信号の何れかがドアゾーンを示す信号でなかった場合に、前記表示装置のドアゾーン表示を消灯することを特徴とするエレベータ制御装置。     The elevator control device according to claim 2,
    When both the signal in the first buffer and the signal in the second buffer are signals indicating a door zone, the door zone display of the display device is turned on,
    An elevator control device that turns off the door zone display of the display device when either of the signal in the first buffer and the signal in the second buffer is not a signal indicating a door zone.
  4. 　請求項１から３何れか一項に記載のエレベータ制御装置であって、
    　さらに、前記ブレーキの開放時に前記光電センサにバッテリからの電力を供給するスイッチを備えており、
    　前記制御盤は、前記スイッチの状態にかかわらず、前記第一の入力バッファ内の信号に基づいて、表示装置にドアゾーン表示することを特徴とするエレベータ制御装置。     The elevator control device according to any one of claims 1 to 3,
    And a switch for supplying electric power from a battery to the photoelectric sensor when the brake is released,
    The control panel displays a door zone on a display device based on a signal in the first input buffer regardless of a state of the switch.
PCT/JP2016/071700 2016-07-25 2016-07-25 Elevator control device WO2018020542A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0764494B2 (en) * 1986-03-25 1995-07-12 株式会社東芝 Elevator position detection display device
JPH081260Y2 (en) * 1987-03-10 1996-01-17 株式会社日立ビルシステムサービス Elevator car position detector
JP2872085B2 (en) * 1995-08-10 1999-03-17 株式会社日立ビルシステム Elevator remote monitoring device
JP2002540043A (en) * 1999-03-26 2002-11-26 オーチス エレベータ カンパニー Elevator rescue system
JP2013040029A (en) * 2011-08-18 2013-02-28 Hitachi Ltd Elevator controller
JP2014040320A (en) * 2012-08-24 2014-03-06 Hitachi Ltd Safety device of elevator and operation method using the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0764494B2 (en) * 1986-03-25 1995-07-12 株式会社東芝 Elevator position detection display device
JPH081260Y2 (en) * 1987-03-10 1996-01-17 株式会社日立ビルシステムサービス Elevator car position detector
JP2872085B2 (en) * 1995-08-10 1999-03-17 株式会社日立ビルシステム Elevator remote monitoring device
JP2002540043A (en) * 1999-03-26 2002-11-26 オーチス エレベータ カンパニー Elevator rescue system
JP2013040029A (en) * 2011-08-18 2013-02-28 Hitachi Ltd Elevator controller
JP2014040320A (en) * 2012-08-24 2014-03-06 Hitachi Ltd Safety device of elevator and operation method using the same

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