WO2009157085A1 - エレベータ装置及びその運転方法 - Google Patents
エレベータ装置及びその運転方法 Download PDFInfo
- Publication number
- WO2009157085A1 WO2009157085A1 PCT/JP2008/061730 JP2008061730W WO2009157085A1 WO 2009157085 A1 WO2009157085 A1 WO 2009157085A1 JP 2008061730 W JP2008061730 W JP 2008061730W WO 2009157085 A1 WO2009157085 A1 WO 2009157085A1
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- Prior art keywords
- circuit
- detection means
- failure
- car
- control device
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- 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
-
- 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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
Definitions
- the present invention relates to an elevator apparatus having a safety control device that controls power supply to a drive device and a brake device according to the content of an abnormality detected by an abnormality detection means, and an operation method thereof.
- a detection circuit body having a processing unit (CPU).
- CPU processing unit
- the safety relay main contact of the safety circuit is opened.
- the detection circuit body generates a safety relay command signal for opening the safety relay main contact (for example, Patent Documents). 1).
- the car drive unit is switched to a special operation mode when a person is in or is about to enter the danger zone.
- the special operation mode the car is prevented from moving to the danger zone (see, for example, Patent Document 2).
- the present invention has been made in order to solve the above-described problems, and an elevator apparatus that can operate a car even when a safety control apparatus fails and can prevent a decrease in operating efficiency, and an operation thereof.
- the purpose is to obtain a method.
- the elevator apparatus includes a car, a drive device that raises and lowers the car, a brake device that brakes traveling of the car, a driving control device that controls the drive device and the brake device, a plurality of abnormality detection means, and a detection by an abnormality detection means
- a safety control device that controls the power supply to the drive device and the brake device according to the content of the abnormality, a failure detection means that detects a failure of the safety control device, and a drive when a failure of the safety control device is detected
- a safety circuit unit having circuit switching means for forming a circuit at the time of failure in which power supply to the device and the brake device is directly cut off by the abnormality detection means.
- the operation method of the elevator apparatus normally monitors the presence / absence of an abnormality by a plurality of abnormality detection means, and to the drive device and the brake device according to the content of the abnormality detected by the abnormality detection means.
- the safety control device for controlling the power supply of the vehicle activated and the safety control device fails, the power supply to the drive device and the brake device is cut off directly by the abnormality detection means.
- FIG. 1 is a block diagram showing an elevator apparatus according to Embodiment 1 of the present invention.
- the car 1 and the counterweight 2 are suspended in the hoistway by the suspension means 3 and are raised and lowered in the hoistway by the driving force of the hoisting machine 4.
- the suspension means 3 a plurality of ropes or a plurality of belts are used.
- the hoisting machine 4 has a drive sheave 5 around which the suspension means 3 is wound, a hoisting machine motor 6 as a driving device that rotates the driving sheave 5, and a brake device 7 that brakes the rotation of the driving sheave 5. is doing.
- the brake device 7 includes a brake drum 8 that is coaxially coupled to the drive sheave 5, a brake shoe 9 that is in contact with and separated from the brake drum 8, and a brake spring that presses the brake shoe 9 against the brake drum 8 and applies a braking force (see FIG. And an electromagnetic magnet (not shown) for releasing the braking force by pulling the brake shoe 9 away from the brake drum 8 against the brake spring.
- An upper hoistway switch 10 is provided in the vicinity of the upper terminal floor of the hoistway.
- a lower hoistway switch 11 is provided in the vicinity of the lower terminal floor of the hoistway.
- An operation cam 12 for operating the hoistway switches 10 and 11 is attached to the car 1.
- the car 1 is provided with a car door opening detection switch 13 for detecting the opening of the car door.
- a landing door opening detection switch (not shown) for detecting the opening of the landing door is provided at the landing on each floor.
- An upper pulley 14 is provided at the top of the hoistway.
- a lower pulley 15 is provided at the lower part of the hoistway.
- An overspeed detection rope 16 is wound around the upper pulley 14 and the lower pulley 15. Both ends of the overspeed detection rope 16 are connected to the car 1.
- the overspeed detection rope 16 is circulated as the car 1 moves up and down. Thereby, the upper pulley 14 is rotated at a speed corresponding to the traveling speed of the car 1.
- the upper pulley 14 is provided with an overspeed detection switch 17 that detects that the traveling speed of the car 1 has reached a preset overspeed.
- the hoisting machine motor 6 and the brake device 7 are controlled by the operation control device 18. That is, the operation of the car 1 is controlled by the operation control device 18.
- the operation control device 18 controls the hoisting motor 6 to move the car 1 up and down, and keeps the car 1 stationary by the brake device 7 on the target floor. Further, the operation control device 18 has a microcomputer in which a program for operating the car 1 is stored.
- Signals from the upper hoistway switch 10, the lower hoistway switch 11, the car door open detection switch 13, the landing door open detection switch and the overspeed detection switch 17 are input to a safety control device (electronic safety controller) 19.
- the safety control device 19 monitors the presence or absence of an abnormality in the elevator device independently of the operation control device 18.
- the safety control device 19 performs winding based on signals from various sensors including the upper hoistway switch 10, the lower hoistway switch 11, the car door open detection switch 13, the landing door open detection switch and the overspeed detection switch 17. The power supply to the upper motor 6 and the brake device 7 is controlled.
- the safety control device 19 has a microcomputer.
- the microcomputer of the safety control device 19 stores a program for controlling power supply to the hoisting machine motor 6 and the brake device 7 in accordance with the detected abnormality content.
- FIG. 2 is a circuit diagram showing the main part of FIG.
- the hoist motor 6 is connected to a motor power source 22 via an inverter 21 that controls the speed of the car 1.
- the inverter 21 is controlled by the operation control device 18.
- a motor power source contact unit 23a is provided between the inverter 21 and the motor power source unit 22.
- the motor power contact portion 23 a is opened and closed by a motor power electromagnetic coil 23. Specifically, the motor power contact portion 23a is closed when the motor power electromagnetic coil 23 is excited and opened when the motor power electromagnetic coil 23 is in a non-excited state.
- the electromagnetic magnet of the brake device 7 has a brake coil 24.
- a brake power contact point 25a is provided between the brake coil 24 and the power source.
- the brake power contact portion 25a is opened and closed by a brake power electromagnetic coil 25. Specifically, the brake power contact point 25a is closed when the brake power electromagnetic coil 25 is excited and opened when the brake power electromagnetic coil 25 is in a non-excited state.
- the safety circuit power supply 26a that supplies power to the motor power supply electromagnetic coil 23 and the brake power supply electromagnetic coil 25 is backed up by a storage battery or the like.
- the safety circuit power supply 26a is connected in series with a plurality of abnormality detecting means for detecting different abnormal states of the elevator apparatus, that is, an overspeed detecting means 27, an overshoot detecting means 28, and a door opening detecting means 29.
- the overspeed detection means 27 is provided with an overspeed detection switch 17 and a terminal floor forced reduction device switch.
- the overshoot detection means 28 is provided with an upper hoistway switch 10 and a lower hoistway switch 11.
- the door opening detection means 29 is provided with a car door opening detection switch 13 and a landing door opening detection switch. These switches are all connected in series.
- the safety control device 19 determines the content of the detected abnormality based on the input signal.
- the motor power supply electromagnetic coil 23 and the brake power supply electromagnetic coil 25 are connected in parallel to the safety circuit power supply 26a.
- a motor power control switch 30 is provided between the motor power electromagnetic coil 23 and the ground 26b.
- a brake power control switch 31 is provided between the brake power electromagnetic coil 25 and the ground 26c.
- the motor power control switch 30 and the brake power control switch 31 for example, semiconductor switches are used.
- the on / off operation of the motor power control switch 30 is controlled by the operation control device 18 and the safety control device 19. Further, on / off of the brake power control switch 31 is also controlled by the operation control device 18 and the safety control device 19.
- a first circuit switching contact portion 32a is provided between the motor power electromagnetic coil 23 and the detection means 27 to 29, a first circuit switching contact portion 32a is provided.
- a second circuit switching contact 32b is provided between the brake power electromagnetic coil 25 and the detection means 27-29.
- a third circuit switching contact portion 32 c is provided between the safety control device 19 and the motor power control switch 30.
- a fourth circuit switching contact 32d is provided between the safety control device 19 and the brake power control switch 31.
- the first to fourth circuit switching contact portions 32a to 32d are opened and closed by a circuit switching electromagnetic coil 32.
- a circuit switching control switch 33 is provided between the circuit switching electromagnetic coil 32 and the ground.
- the circuit switching control switch 33 for example, a semiconductor switch is used. On / off of the circuit switching control switch 33 is controlled by the safety control device 19.
- the circuit switching means 34 of the first embodiment has first to fourth circuit switching contact portions 32a to 32d, a circuit switching electromagnetic coil 32, and a circuit switching control switch 33. Further, the safety circuit unit 35 of the first embodiment includes the safety control device 19, detection means 27 to 29, and circuit switching means 34.
- the circuit switching means 34 includes a first circuit (FIG. 3) that enables the control by the safety control device 19 and a second circuit (FIG. 4) that separates the safety control device 19 from the safety circuit unit 35. ) And.
- the safety control device 19 is provided with failure detection means 36 for detecting a failure of the safety control device 19 itself.
- the failure detection means 36 is realized, for example, by configuring the arithmetic unit of the safety control device 19 in a double system (or multiple system) and monitoring the operations of the arithmetic units. Specifically, the same calculation process is executed by each independent calculation unit (CPU or the like), and the calculation results of each other are compared. If the difference between the calculation results is equal to or greater than a threshold value, one of the calculation units has a failure. It is determined that it has occurred.
- the circuit switching control switch 33 When no failure of the safety control device 19 is detected by the failure detection means 36, the circuit switching control switch 33 is turned on. Thereby, the circuit switching electromagnetic coil 32 is excited, and a first circuit (normal circuit) is formed in the safety circuit unit 35.
- the circuit switching control switch 33 is turned off. As a result, the circuit switching electromagnetic coil 32 is de-energized and the inside of the safety circuit unit 35 is switched to the second circuit (failure circuit).
- the first and second circuits will be described.
- the electric circuit is interrupted in the overspeed detection means 27.
- the power electromagnetic coils 23 and 25 are forcibly de-energized and the power contact parts 23a and 25a are opened. As a result, the car 1 is immediately brought to an emergency stop.
- the electric circuit is interrupted in the overshoot detection means 28. Therefore, regardless of whether the motor power control switch 30 is on or off, the motor The power electromagnetic coil 23 is forcibly de-energized and the motor power contact 23a is opened. Thereby, the power supply to the hoisting motor 6 is cut off.
- the brake power supply electromagnetic coil 25 is connected to the safety circuit power supply 26a upstream of the overshoot detection means 28, the brake power supply electromagnetic coil 25 remains connected to the safety circuit power supply 26a even if the electric circuit is interrupted in the overshoot detection means 28. This is a state where control by the safety control device 19 is possible.
- the safety control device 19 controls the brake power control switch 31 to control the braking force of the brake device 7 and to make the car 1 perform an emergency stop. That is, the safety control device 19 applies the braking force of the brake device 7 intermittently, for example, so that the deceleration of the car 1 at the time of emergency stop of the car 1 does not become excessive. To control.
- the power control switches 30 and 31 are controlled by the safety control device 19. Specifically, if the car 1 is located in a door zone (a predetermined range from the landing level), the safety control device 19 causes the brake device 7 to perform a braking operation after the car 1 is landed. If the car 1 is located outside the door zone, the power supply to the hoisting motor 6 is immediately cut off, and the car 1 is emergency stopped while performing deceleration control.
- the safety control device 19 is disconnected from the power supply electromagnetic coils 23 and 25 and disabled.
- a safety circuit in which detection means 27 to 29 are connected in series is formed between the power supply electromagnetic coils 23 and 25 and the safety circuit power supply 26a.
- both the motor power electromagnetic coil 23 and the brake power electromagnetic coil 25 are forced to be in a non-excited state.
- the car 1 is immediately stopped immediately. That is, the power supply to the hoisting machine motor 6 and the brake device 7 is cut off directly by the detection means 27 to 29 without going through the safety control device 19.
- the car 1 is operated in a state where the presence or absence of abnormality is monitored by the detection means 27 to 29 and the safety control device 19 is activated in normal times.
- the safety control device 19 fails, the operation of the car 1 is continued in a state where the power supply to the hoisting motor 6 and the brake device 7 is directly cut off by the detecting means 27 to 29. .
- the failure detection means 36 for detecting a failure of the safety control device 19 and the control by the safety control device 19 are invalidated when the safety control device 19 fails, and the hoisting machine motor 6 and the brake device 7 are transferred. Since the safety circuit unit 35 is provided with the circuit switching means 34 that forms a circuit in which the power supply of the vehicle is cut off directly by the detection means 27 to 29, the car 1 can be operated even when the safety control device 19 fails. It is possible to prevent a decrease in operating efficiency.
- the safety control device 19 performs for what kind of abnormality is not limited to the above example. Therefore, for example, the positions of the detection means 27 to 29 may be switched as appropriate.
- the failure detection means 34 is provided in the safety control device 19, but the failure detection means 34 may be provided outside the safety control device 19 independently of the safety control device 19.
- the circuit switching means 32 is constituted by a multiplex system so that when the switching operation to the second circuit is performed in at least one system, the inside of the safety circuit unit 35 is switched from the first circuit to the second circuit. The reliability can be improved.
- the power electromagnetic coils 23 and 25 are switched. Switching may be performed while continuing the operation of the car 1 without disconnecting from the safety circuit power supply 26a.
- FIG. 5 is a circuit diagram showing a main part of an elevator apparatus according to Embodiment 2 of the present invention.
- a timer 37 is provided between the safety control device 19 and the circuit switching means 34.
- the circuit changeover control switch 33 is turned off to switch to the second circuit. Is executed.
- the safety control device 19 and the operation control device 18 are communicably connected.
- the safety control device 19 changes to the operation control device 18. Operation command at the time of failure is output.
- the operation control device 18 When the operation control device 18 receives the operation command at the time of failure, the operation control device 18 moves the car 1 to a predetermined floor (for example, the nearest floor), and then shuts off the power supply to the hoisting machine motor 6 and the brake device 7, and the car door. Is released. Therefore, the time set in the timer 37 is a time sufficient to drive the car 1 to a predetermined floor.
- a predetermined floor for example, the nearest floor
- a switch to the second circuit is executed after a predetermined time after the failure of the safety control device 19 is detected, and the car 1 is set to a predetermined position before the switch to the second circuit is executed. Therefore, the car 1 is not temporarily stopped when the safety control device 19 is out of order, and the service can be prevented from deteriorating.
- the driving device is not limited to the hoisting motor 6 and may be a linear motor mounted on the car 1 or the counterweight 2, for example.
- the brake device 7 that brakes the rotation of the drive sheave 5 and brakes the car 1 is shown.
- the present invention is not limited to this.
- the car 1 is held by holding the suspension means 3.
- a brake for braking (rope brake), a brake mounted on the car 1 and engaging with a guide rail to brake the car 1 (car brake) may be used.
- the number of brake devices is not limited to one, and a plurality of brake devices may be used.
- the car 1 is moved up and down by one hoisting machine 4, but an elevator apparatus using a plurality of hoisting machines may be used.
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Abstract
Description
また、この発明に係るエレベータ装置の運転方法は、通常時は、複数の異常検出手段により異常の有無を監視するとともに、異常検出手段で検出された異常の内容に応じて駆動装置及びブレーキ装置への電力供給を制御する安全制御装置を有効化した状態で、かごを運行し、安全制御装置が故障した場合には、駆動装置及びブレーキ装置への電力供給が異常検出手段により直接的に遮断される状態で、かごの運行を継続する。
実施の形態1.
図1はこの発明の実施の形態1によるエレベータ装置を示す構成図である。図において、かご1及び釣合おもり2は、懸架手段3により昇降路内に吊り下げられており、巻上機4の駆動力により昇降路内を昇降される。懸架手段3としては、複数本のロープ又は複数本のベルトが用いられている。
また、上記の例では、安全制御装置19に故障検出手段34を設けたが、故障検出手段34は安全制御装置19から独立して安全制御装置19の外部に設けてもよい。
さらに、回路切換手段32を多重系で構成し、少なくとも1系統で第2の回路への切換動作が行われると安全回路部35内が第1の回路から第2の回路へ切り換えられようにしてもよく、信頼性を向上させることができる。
さらにまた、第1の回路から第2の回路に切り換える場合、電源電磁コイル23,25を安全回路電源26aから一旦切り離し、かご1を非常停止させてから切り換えても、電源電磁コイル23,25を安全回路電源26aから切り離すことなく、かご1の運転を継続させながら切り換えてもよい。
次に、図5はこの発明の実施の形態2によるエレベータ装置の要部を示す回路図である。この実施の形態2では、安全制御装置19と回路切換手段34との間にタイマ37が設けられている。故障検出手段36により安全制御装置19の故障が検出されると、タイマ37により時間を計測し、所定時間が経過してから、回路切換制御スイッチ33がオフにされ、第2の回路への切換が実行される。
また、上記の例では、駆動シーブ5の回転を制動してかご1を制動するブレーキ装置7を示したが、これに限定されるものではなく、例えば、懸架手段3を把持してかご1を制動するブレーキ(ロープブレーキ)や、かご1に搭載されガイドレールに係合してかご1を制動するブレーキ(かごブレーキ)等でもよい。
さらに、ブレーキ装置の数は1つに限定されるものではなく、複数のブレーキ装置を用いてもよい。
さらにまた、上記の例では、1台の巻上機4によりかご1が昇降されるが、複数台の巻上機を用いるエレベータ装置であってもよい。
Claims (4)
- かご、
上記かごを昇降させる駆動装置、
上記かごの走行を制動するブレーキ装置、
上記駆動装置及び上記ブレーキ装置を制御する運行制御装置、及び
複数の異常検出手段と、上記異常検出手段で検出された異常の内容に応じて上記駆動装置及び上記ブレーキ装置への電力供給を制御する安全制御装置と、上記安全制御装置の故障を検出する故障検出手段と、上記安全制御装置の故障が検出されたとき、上記駆動装置及び上記ブレーキ装置への電力供給が上記異常検出手段により直接的に遮断される故障時回路を形成する回路切換手段とを有する安全回路部
を備えているエレベータ装置。 - 上記故障時回路では、上記駆動装置及び上記ブレーキ装置への電力供給を可能とするための電源電磁コイルとその電源との間に上記異常検出手段が直列に接続される請求項1記載のエレベータ装置。
- 上記回路切換手段は、上記安全制御装置の故障が検出されてから所定時間後に上記故障時回路への切換を実行し、
上記運行制御装置は、上記故障時回路への切換が実行される前に、上記かごを所定の階に移動させる請求項1記載のエレベータ装置。 - 通常時は、複数の異常検出手段により異常の有無を監視するとともに、上記異常検出手段で検出された異常の内容に応じて駆動装置及びブレーキ装置への電力供給を制御する安全制御装置を有効化した状態で、かごを運行し、
上記安全制御装置が故障した場合には、上記駆動装置及び上記ブレーキ装置への電力供給が上記異常検出手段により直接的に遮断される状態で、上記かごの運行を継続するエレベータ装置の運転方法。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010517648A JP5197745B2 (ja) | 2008-06-27 | 2008-06-27 | エレベータ装置及びその運転方法 |
| PCT/JP2008/061730 WO2009157085A1 (ja) | 2008-06-27 | 2008-06-27 | エレベータ装置及びその運転方法 |
| CN2008801292673A CN102036898B (zh) | 2008-06-27 | 2008-06-27 | 电梯装置及其运转方法 |
| EP08790695.4A EP2289832B1 (en) | 2008-06-27 | 2008-06-27 | Elevator apparatus and operating method thereof |
| KR1020107025057A KR101218022B1 (ko) | 2008-06-27 | 2008-06-27 | 엘리베이터 장치 및 그 운전 방법 |
| US12/937,800 US8430212B2 (en) | 2008-06-27 | 2008-06-27 | Safety control device for an elevator apparatus and operating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2008/061730 WO2009157085A1 (ja) | 2008-06-27 | 2008-06-27 | エレベータ装置及びその運転方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009157085A1 true WO2009157085A1 (ja) | 2009-12-30 |
Family
ID=41444161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2008/061730 Ceased WO2009157085A1 (ja) | 2008-06-27 | 2008-06-27 | エレベータ装置及びその運転方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8430212B2 (ja) |
| EP (1) | EP2289832B1 (ja) |
| JP (1) | JP5197745B2 (ja) |
| KR (1) | KR101218022B1 (ja) |
| CN (1) | CN102036898B (ja) |
| WO (1) | WO2009157085A1 (ja) |
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| WO2011111223A1 (ja) * | 2010-03-12 | 2011-09-15 | 三菱電機株式会社 | エレベータ安全制御装置 |
| EP2583928A4 (en) * | 2010-06-18 | 2017-11-08 | Hitachi, Ltd. | Elevator system |
| WO2019171423A1 (ja) * | 2018-03-05 | 2019-09-12 | 三菱電機株式会社 | エレベーター制御装置およびエレベーター制御方法 |
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| JP5360231B2 (ja) * | 2009-12-15 | 2013-12-04 | 三菱電機株式会社 | エレベータ装置 |
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| FI123506B (fi) * | 2012-05-31 | 2013-06-14 | Kone Corp | Hissin käyttölaite sekä hissin turvajärjestely |
| WO2014198545A1 (de) * | 2013-06-13 | 2014-12-18 | Inventio Ag | Bremsverfahren für eine pesonentransportanlage, bremssteuerung zur durchführung des bremsverfahrens und personentransportanlage mit einer bremssteuerung |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102036898B (zh) | 2013-05-01 |
| EP2289832A1 (en) | 2011-03-02 |
| CN102036898A (zh) | 2011-04-27 |
| KR101218022B1 (ko) | 2013-01-02 |
| KR20100129340A (ko) | 2010-12-08 |
| US20110036667A1 (en) | 2011-02-17 |
| JP5197745B2 (ja) | 2013-05-15 |
| EP2289832A4 (en) | 2014-06-11 |
| JPWO2009157085A1 (ja) | 2011-12-01 |
| US8430212B2 (en) | 2013-04-30 |
| EP2289832B1 (en) | 2018-10-31 |
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