JP2018052667A - Elevator control system - Google Patents

Elevator control system Download PDF

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JP2018052667A
JP2018052667A JP2016188986A JP2016188986A JP2018052667A JP 2018052667 A JP2018052667 A JP 2018052667A JP 2016188986 A JP2016188986 A JP 2016188986A JP 2016188986 A JP2016188986 A JP 2016188986A JP 2018052667 A JP2018052667 A JP 2018052667A
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car
speed
control system
motor
detection device
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JP6626808B2 (en
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真貴 宮前
Maki Miyamae
真貴 宮前
岩本　晃
Akira Iwamoto
晃 岩本
勇来 齊藤
Yuki Saito
勇来 齊藤
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Hitachi Ltd
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Hitachi Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3492—Position or motion detectors or driving means for the detector
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

PROBLEM TO BE SOLVED: To eliminate the difficulty of safely and quickly lowering a car that has lost an absolute position due to power shutdown to a lowest floor.SOLUTION: A elevator control system is provided with: a car; a motor for lifting the car via a rope; a control device that lifts the car by controlling the motor; and an end floor detection device that detects approaching of the car to an end floor. The control device causes the car to be lifted by a prescribed distance at a first speed after the emergency stop of the car, and reduces the speed to a second speed to let a user get on/off when the end floor is detected by the end floor detection device during the prescribed-distance lifting and the first speed is higher than a predetermined speed.SELECTED DRAWING: Figure 1

Description

エレベーター制御システムに関する。 The present invention relates to an elevator control system.

エレベータが非常停止し、再起動可能となった場合に、走行再開された後は、迅速にかご位置を特定し、エレベータを正常復帰させることが望まれている。   When the elevator stops and can be restarted, it is desired to quickly identify the car position and return the elevator to normal after the vehicle is restarted.

例えば、特許文献１には、エレベータが急行ゾーンにて非常停止し、エレベータが再起動可能となった場合には、走行再開し、ガバナプーリ軸に取り付けられたエンコーダからの情報と、昇降路に設置された位置検出用の遮蔽板から取得する情報により非常停止後のかごの絶対位置を確定し、ドアゾーン外においてもエレベータを高速走行する技術が開示されている。   For example, Patent Document 1 discloses that when an elevator stops in an express zone and the elevator can be restarted, traveling is resumed and information from an encoder attached to a governor pulley shaft is installed in a hoistway. A technique is disclosed in which the absolute position of the car after an emergency stop is determined based on the information acquired from the position detection shielding plate, and the elevator runs at high speed even outside the door zone.

特開２０１６−０６９１３３号公報JP, 2006-0669133, A

特許文献１には急行ゾーンに非常停止した後のエレベーター増速手段については記載されているが、電源複電後に絶対位置を喪失したエレベーターを増速させる手段については記載がない。   Patent Document 1 describes elevator speed increasing means after an emergency stop in an express zone, but does not describe means for speeding up an elevator that has lost its absolute position after double power supply.

そこで本発明の目的は、電源複電後に絶対位置を喪失したエレベーターが安全かつ早急に最下階に到着するエレベーターシステムを提供することである。   Accordingly, an object of the present invention is to provide an elevator system in which an elevator whose absolute position has been lost after double power supply arrives at the lowest floor safely and promptly.

エレベーター制御システムは、乗りかごと、ロープを介して乗りかごを昇降させるためのモータと、モータを制御し前記乗りかごを昇降させる制御装置と、乗りかごが端階に近づいていることを検出する端階検出装置を備える。制御装置は、乗りかごを非常停止後、乗りかごを第一の速度で一定距離昇降させ、一定距離昇降させている間に端階検出装置により端階が検出され、第一の速度が予め定めた速度より速い場合は、第二二の速度に減速して乗降させる。   The elevator control system detects a car and a motor for raising and lowering the car via a rope, a control device for controlling the motor to raise and lower the car, and detecting that the car is approaching the end floor. An end floor detection device is provided. After the emergency stop of the car, the control device raises and lowers the car at a first speed for a certain distance, and while the car is raised and lowered by a certain distance, the edge floor is detected by the edge floor detecting device, and the first speed is determined in advance. If it is faster than the speed, decelerate to the second speed and get on and off.

以上、本発明によれば、エレベーターが電源複電後に絶対位置を喪失した場合においても、安全かつ迅速に最下階まで昇降させることができる。   As described above, according to the present invention, even when the elevator loses the absolute position after the double power supply, it can be safely and quickly moved up and down to the lowest floor.

本実施形態に係わるエレベーターの全体構成図例である。It is an example of the whole block diagram of the elevator concerning this embodiment. 本実施形態に係わるシステム構成図例である。It is an example of a system configuration figure concerning this embodiment. 本実施形態のフローチャート例である。It is an example of the flowchart of this embodiment.

図１はエレベーターの全体構成図例である。エレベーターは制御盤２、モータ４、乗りかご８を備え、三相交流電源１から供給される電力を、制御盤２内のエレベーター制御装置３で制御し、モータ４に供給し、モータ４を駆動させる。そしてモータ４に連結されたシーブ５から主ロープ７を介して供給される駆動力によって図示しない昇降路内を乗りかご８と釣合い錘９が昇降するものである。シーブ５軸には、モータ４の回転方向や乗りかご８の位置を検出するモータＲ．Ｅ６（モータエンコーダー）が取り付けらている。   FIG. 1 is an example of an overall configuration diagram of an elevator. The elevator includes a control panel 2, a motor 4, and a car 8. The electric power supplied from the three-phase AC power source 1 is controlled by the elevator control device 3 in the control panel 2, supplied to the motor 4, and the motor 4 is driven. Let The car 8 and the counterweight 9 are moved up and down in a hoistway (not shown) by a driving force supplied from the sheave 5 connected to the motor 4 through the main rope 7. The sheave 5 shaft includes a motor R.P. that detects the rotational direction of the motor 4 and the position of the car 8. E6 (motor encoder) is attached.

乗りかご８にはガバナロープ１２が連結されており、ガバナロープ１２はガバナプーリ１３にかけられている。これらは乗りかご８の昇降と同期して、乗りかご８に連結されたガバナロープ１２が動き、ガバナプーリ１３を回転させる。ガバナプーリ１３の軸には、ガバナプーリ１３の回転量によって乗りかご８の位置や速度を検出するガバナＲ．Ｅ１４（ガバナエンコーダ）が取り付けられている。   A governor rope 12 is connected to the car 8, and the governor rope 12 is hung on a governor pulley 13. In synchronism with the raising and lowering of the car 8, the governor rope 12 connected to the car 8 moves to rotate the governor pulley 13. The governor pulley 13 detects the position and speed of the car 8 based on the amount of rotation of the governor pulley 13. E14 (a governor encoder) is attached.

乗りかご８には、図示しない昇降路内に設置された、最上階、最下階、中間階で形状の異なる遮蔽板１１を検出することによって、乗りかご８の絶対位置を検出する位置検出装置１０が取り付けられている。また図示しない昇降路内の最下階付近には端階検出装置１５が設けられており、最下部には乗りかご８が端階に突入した際に守るための緩衝器１６が設置されている。   A position detection device for detecting the absolute position of the car 8 by detecting the shielding plates 11 having different shapes on the uppermost floor, the lowermost floor, and the intermediate floor, which are installed in a hoistway (not shown). 10 is attached. Further, an end floor detection device 15 is provided in the vicinity of the lowermost floor in a hoistway (not shown), and a shock absorber 16 is provided at the lowermost portion for protecting when the car 8 enters the end floor. .

図２は本実施形態に係わるシステム構成図例であり、絶対位置を喪失した乗りかご８が最下階に向けて安全に走行するための動作を詳細に説明するための図である。乗りかご８の絶対位置は位置検出装置１０とモータＲ．Ｅ６並びにガバナＲ．Ｅ１４のパルスカウント数を基に、エレベーター制御装置３内の位置演算部１８にて演算される位置演算値によって把握している。制御盤２の電源が遮断されると、位置演算を行うことが出来ない為、電源複電時に位置検出装置１０が最上階または最下階の遮蔽板１１を検出していない限り、絶対位置を喪失したとエレベーター制御装置３が判断し、絶対位置を把握するため最下階に向けて走行を開始する。この際、乗りかご８の速度を増速させつつ、緩衝器１６への突入を防ぐ手段として、端階検出装置１５を用いる。端階検出装置１５が端階を検出した際の速度をエレベーター制御装置３内の速度演算部１９にて演算し、速度演算値と記憶部１７に記憶している速度設定値と比較部２０にて比較し、速度設定値以上であればエレベーター制御装置３内の速度指令部２１がインバータ２２に強制減速指令を出し、乗りかご８を最下階に着床させる。尚、端階検出装置とは、カムスイッチによって構成されるものとしても良い。   FIG. 2 is an example of a system configuration diagram according to the present embodiment, and is a diagram for explaining in detail an operation for safely traveling the car 8 whose absolute position has been lost toward the lowest floor. The absolute position of the car 8 is determined by the position detector 10 and the motor R.P. E6 and governor R.E. Based on the pulse count number of E14, the position is calculated by the position calculation value calculated by the position calculation unit 18 in the elevator control device 3. Since the position calculation cannot be performed when the power supply of the control panel 2 is cut off, the absolute position is determined unless the position detection device 10 detects the uppermost or lowermost shielding plate 11 at the time of double power supply. The elevator control device 3 determines that it has been lost, and starts traveling toward the lowest floor in order to grasp the absolute position. At this time, the end floor detection device 15 is used as means for preventing entry into the shock absorber 16 while increasing the speed of the car 8. The speed when the end floor detection device 15 detects the end floor is calculated by the speed calculation unit 19 in the elevator control device 3, and the speed calculation value and the speed set value stored in the storage unit 17 and the comparison unit 20 are calculated. If the speed setting value is equal to or greater than the speed setting value, the speed command unit 21 in the elevator control device 3 issues a forced deceleration command to the inverter 22 to land the car 8 on the lowest floor. The end floor detection device may be constituted by a cam switch.

乗りかご８が端階検出装置１５よりも最下階寄りに停止している場合もあるため、制限速度を例えば２段階設けて速度を制限しても良い。ここで制限速度は第一の速度に比べて速い速度である第三の速度を設定する。乗りかご８がある一定距離走行するまでは、制限速度である第一の速度で走行し、ある一定距離走行した後制限速度である第三の速度に増速させる。この際、ある一定距離は、位置検出装置１０が検出した遮蔽板１１枚数、またはモータＲ．Ｅ６またはガバナＲ．Ｅ１４のパルスカウント数を基に、エレベーター制御装置３内の位置演算部１８によって演算された位置演算値と、記憶部１７に記憶している位置設定値を比較部２０にて比較し、その結果によって速度を制限する。   Since the car 8 may stop closer to the lowermost floor than the end floor detection device 15, the speed may be limited by providing two speed limits, for example. Here, the speed limit is set to a third speed that is faster than the first speed. Until the car 8 travels a certain distance, the car travels at a first speed that is a speed limit, and after traveling a certain distance, the speed is increased to a third speed that is a speed limit. At this time, the certain distance is the number of shielding plates 11 detected by the position detection device 10 or the motor R.P. E6 or governor R.E. Based on the pulse count number of E14, the position calculation value calculated by the position calculation unit 18 in the elevator control device 3 and the position set value stored in the storage unit 17 are compared by the comparison unit 20, and the result Limit speed by.

図３に本実施形態のフローチャート例を示す。制御盤２の電源が遮断後複電されたかを判断し(Ｓ１)、複電している場合は、位置検出装置１０が最上階または最下階の遮蔽板１１を検出しているかを判断する(Ｓ２)。   FIG. 3 shows a flowchart example of the present embodiment. It is determined whether the control panel 2 has been double-powered after being shut off (S1). If double-powered, it is determined whether the position detecting device 10 has detected the shielding plate 11 on the top floor or the bottom floor. (S2).

検出していない場合、絶対位置を喪失したとエレベーター制御装置３が判断し、最下階に向けて制限速度を第一の速度として走行を開始する(Ｓ３)。端階検出装置１５が端階を検出しない状態(Ｓ４)で、ある一定距離走行すると(Ｓ８)、制限速度を第三の速度に増速(Ｓ９)する。その後端階検出装置１５が端階を検出すると(Ｓ４)、その際の速度が速度設定値を越えているかを判断する(Ｓ５)。速度設定値以上であった場合、強制減速指令を出し乗りかご８を最下階に着床させる(Ｓ６)。速度設定値以下であった場合、端階に正常に着床し(Ｓ７)、エレベーターは正常復帰する(Ｓ１０)。すなわち、制御装置は乗りかごを非常停止後、乗りかごを第一の速度で一定距離昇降させ、一定距離昇降させている間に端階検出装置により端階が検出され、第一の速度が予め定めた速度より速い場合は、第二の速度に減速して乗降させる。また、制御装置は、一定距離昇降させている間に端階検出装置により端階が検出されなかった場合は、前記第一の速度より速い第三の速度で乗降させる。   If not detected, the elevator controller 3 determines that the absolute position has been lost, and starts traveling to the lowest floor with the speed limit set as the first speed (S3). When the end floor detector 15 does not detect the end floor (S4) and travels for a certain distance (S8), the speed limit is increased to the third speed (S9). Thereafter, when the end floor detection device 15 detects the end floor (S4), it is determined whether the speed at that time exceeds the speed set value (S5). If it is equal to or greater than the speed set value, a forced deceleration command is issued and the car 8 is landed on the lowest floor (S6). If it is less than the speed set value, it will normally land on the end floor (S7) and the elevator will return to normal (S10). That is, after the emergency stop of the car, the control device raises and lowers the car at a first speed by a certain distance, and the edge floor is detected by the edge floor detection device while raising and lowering the car by a certain distance. If it is faster than the set speed, it will decelerate to the second speed and get on and off. In addition, when the end floor is not detected by the end floor detection device while moving up and down a certain distance, the control device gets on and off at a third speed that is faster than the first speed.

本発明は上記した実施例に限定されるものではなく、本発明を分かりやすく説明するために詳細を説明したものである。必ずしも説明した全ての構成を備えるものに限定されるものではなく、実施例の各構成、機能、処理手段等は、それらの一部または全部を説明したものである。例えば、ガバナＲ．Ｅはガバナプーリの軸へ取り付ける方式やガバナプーリに押し当てる方式としても良い。また実施例の図では、説明を明瞭とするために１：１ローピングのエレベーターを図示したが、２：１ローピングのエレベーターにも応用できる。   The present invention is not limited to the above-described embodiments, but has been described in detail for easy understanding of the present invention. The configurations, functions, processing means, and the like of the embodiments are not limited to those having all the configurations described above, but only a part or all of them are described. For example, Governor R. E may be a method of attaching to the governor pulley shaft or a method of pressing against the governor pulley. Further, in the drawings of the embodiments, a 1: 1 roping elevator is illustrated for the sake of clarity, but the present invention can also be applied to a 2: 1 roping elevator.

１…三相交流電源、２…制御盤、３…エレベーター制御装置、４…モータ、５…シーブ、６…モータＲ．Ｅ、７…主ロープ、８…乗りかご、９…釣合い錘、１０…位置検出装置、１１…遮蔽板、１２…ガバナロープ、１３…ガバナプーリ、１４…ガバナＲ．Ｅ、１５…端階検出装置、１６…緩衝器、１７…記憶部、１８…位置演算部、１９…速度演算部、２０…比較部、２１…速度指令部、２２…インバータ   DESCRIPTION OF SYMBOLS 1 ... Three-phase alternating current power supply, 2 ... Control panel, 3 ... Elevator control apparatus, 4 ... Motor, 5 ... Sheave, 6 ... Motor R.P. E, 7 ... main rope, 8 ... car, 9 ... counterweight, 10 ... position detector, 11 ... shielding plate, 12 ... governor rope, 13 ... governor pulley, 14 ... governor R.P. E, 15 ... End floor detection device, 16 ... Shock absorber, 17 ... Storage unit, 18 ... Position calculation unit, 19 ... Speed calculation unit, 20 ... Comparison unit, 21 ... Speed command unit, 22 ... Inverter

Claims (5)

乗りかごと、ロープを介して前記乗りかごを昇降させるためのモータと、前記モータの軸に取付けられたモータエンコーダと、前記乗りかごと連動して回転するガバナプーリと、前記ガバナプーリ軸に取り付けられたガバナエンコーダと、前記モータを制御し前記乗りかごを昇降させる制御装置と、前記乗りかごが端階に近づいていることを検出する端階検出装置を備え、
前記制御装置は前記乗りかごを非常停止後、乗りかごを第一の速度で一定距離昇降させ、前記一定距離昇降させている間に前記端階検出装置により前記端階が検出され、第一の速度が予め定めた速度より速い場合は、第二の速度に減速して乗降させる
ことを特徴とするエレベーター制御システム。 A motor for raising and lowering the car via a rope, a motor, a motor encoder attached to the motor shaft, a governor pulley that rotates in conjunction with the car, and a governor pulley shaft. A governor encoder; a control device that controls the motor to raise and lower the car; and an end floor detection device that detects that the car is approaching the end floor,
After the emergency stop of the car, the control device raises and lowers the car at a first speed by a certain distance, and the edge floor is detected by the edge floor detection device while raising and lowering the certain distance, When the speed is higher than a predetermined speed, the elevator control system is characterized by decelerating and getting on and off to the second speed. 請求項１に記載のエレベーター制御システムにおいて、
前記制御装置は、前記一定距離昇降させている間に前記端階検出装置により前記端階が検出されなかった場合、前記第一の速度より速い第三の速度で乗降させる
ことを特徴とするエレベーター制御システム。 In the elevator control system according to claim 1,
The control device causes the elevator to get on and off at a third speed higher than the first speed when the end floor is not detected by the end floor detection device while being lifted up and down by the predetermined distance. Control system. 請求項１又は２に記載のエレベーター制御システムにおいて、
遮蔽版と、前記遮蔽板を検出することによって、前記乗りかごの位置を検出する位置検出装置とを更に備え、
前記一定距離は、前記位置検出装置が、前記遮蔽板をある一定数検出することによって距離を測る
ことを特徴とするエレベーター制御システム。 In the elevator control system according to claim 1 or 2,
Further comprising a shielding plate and a position detecting device for detecting the position of the car by detecting the shielding plate;
The elevator control system characterized in that the fixed distance is measured by the position detection device detecting a certain number of the shielding plates. 請求項１又は２に記載のエレベーター制御システムにおいて、
前記一定距離は、前記モータの軸に取付けられたモータエンコーダ又は前記ガバナプーリ軸に取り付けられたガバナエンコーダから乗りかごの位置を検出して距離を測る
ことを特徴とするエレベーター制御システム。 In the elevator control system according to claim 1 or 2,
The elevator control system characterized in that the fixed distance is measured by detecting a position of a car from a motor encoder attached to the motor shaft or a governor encoder attached to the governor pulley shaft. 請求項１から４に記載のエレベーター制御システムにおいて、
前記端階検出装置とは、カムスイッチによって構成される
ことを特徴とするエレベーター制御システム。 In the elevator control system according to claims 1 to 4,
The end floor detection device is constituted by a cam switch.
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