WO2011048664A1 - エレベータの安全装置 - Google Patents
エレベータの安全装置 Download PDFInfo
- Publication number
- WO2011048664A1 WO2011048664A1 PCT/JP2009/068056 JP2009068056W WO2011048664A1 WO 2011048664 A1 WO2011048664 A1 WO 2011048664A1 JP 2009068056 W JP2009068056 W JP 2009068056W WO 2011048664 A1 WO2011048664 A1 WO 2011048664A1
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- WIPO (PCT)
- Prior art keywords
- relay
- power relay
- driver
- command
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- Prior art date
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Classifications
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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
-
- 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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
Definitions
- This invention relates to an elevator safety device.
- the arithmetic device controls the driving of the relay via the relay driver and controls the power supply to the motor or the brake.
- the power supply to the motor and brake may not be cut off in an emergency due to an abnormality in the arithmetic unit or a short circuit failure of the driver.
- Patent Document 1 cannot detect the other failure of the switch. Therefore, even if the two switches described in Patent Document 1 are applied as relay drivers, there is a problem in that any one of the relay drivers cannot detect a failure.
- the present invention has been made to solve the above-described problems, and the object of the present invention is assured for each of the two relay drivers provided corresponding to the relays for cutting off the power supply of the motor or brake. It is another object of the present invention to provide an elevator safety device that can detect a failure.
- An elevator safety device includes a relay having a function of cutting off power supply to an elevator motor or brake, a first driver connected in series to the relay, the relay, and the first driver.
- a second driver connected in series to the relay, and one of a drive command for applying a drive voltage to the relay and a cut-off command for cutting off the drive voltage is output to the first driver according to a situation.
- the cooperative operation is performed such that the other of the arithmetic devices outputs the shut-off command, and the first and second arithmetic devices are based on the output state of the diagnostic contact signal by the contact signal output device during the cooperative operation.
- failure diagnosis of the first and second drivers is performed.
- FIG. 1 is a configuration diagram of an entire elevator in which an elevator safety device according to Embodiment 1 of the present invention is used.
- reference numeral 1 denotes a motor power source.
- 2 is a power converter.
- 3 is a motor.
- the motor 3 has a function of rotating by electric power supplied from the motor power source 1 via the power conversion device 2.
- 4 is a sheave.
- the sheave 4 has a function of rotating following the rotation of the motor 3.
- the main rope 5 is the main rope.
- the main rope 5 is wound around the sheave 4.
- 6 is a car.
- the car 6 is connected to one end of the main rope 5.
- 7 is a counterweight. This counterweight 7 is connected to the other end of the main rope 5.
- Reference numeral 8 denotes a brake power source.
- 9 is a brake.
- the brake 9 has a function of braking the rotation of the motor 3 when the electric power supplied from the brake power supply 8 is cut off.
- the motor power relay contact 10 is a motor power relay contact.
- the motor power relay contact 10 is composed of a contact.
- the motor power relay contact 10 is provided on the wiring between the motor power 1 and the power converter 2.
- Reference numeral 11 denotes a brake power relay contact.
- the brake power contact 11 is composed of a contact.
- the brake power supply relay contact 11 is provided on the wiring between the brake power supply 8 and the brake 9.
- the electronic safety device 12 is an electronic safety device.
- the electronic safety device 12 has a function of controlling closing and opening of the motor power relay contact 10 and the brake power relay contact 11.
- the electronic safety device 12 has a function of detecting an emergency situation of the elevator.
- the motor power relay contact 10 and the brake power relay contact 11 are opened under the control of the electronic safety device 12.
- the relay contacts 10 and 11 are opened, power supply to the motor 3 and the brake 9 is cut off. Then, the brake 9 brakes the motor 3 that has lost its driving force, so that the car 6 is brought to an emergency stop. By this emergency stop, users in the car 6 can be secured.
- Reference numeral 13 denotes a motor power relay.
- the motor power relay 13 is disposed on a motor power relay wiring 14 provided between the power source and the ground.
- the motor power relay 13 is for controlling closing and opening of the motor power relay contact 10. That is, when a drive voltage is applied to the motor power relay 13, the motor power relay contact 10 is closed. On the other hand, when the drive voltage to the motor power relay 13 is cut off, the motor power relay contact 10 is opened.
- the 15 is a first motor power relay driver.
- the first motor power relay driver 15 is composed of a transistor.
- the first motor power relay driver 15 is connected in series to the motor power relay 13 on the motor power relay wiring 14.
- Reference numeral 16 denotes a second motor power relay driver.
- the second motor power relay driver 16 is formed of a transistor.
- the second motor power relay driver 16 is connected in series to the motor power relay 13 and the first motor power relay driver 15 on the motor power relay wiring 14. That is, the first and second motor power relay drivers 15 and 16 have a dual system configuration with respect to the motor power relay 13.
- the brake power relay 17 is a brake power relay.
- the brake power relay 17 is disposed on a brake power relay wiring 18 provided between the power source and the ground.
- the brake power relay 17 is for controlling closing and opening of the brake power relay contact 11. That is, when a drive voltage is applied to the brake power relay 17, the brake power relay contact 11 is closed. On the other hand, when the drive voltage to the brake power relay 17 is cut off, the brake power relay contact 11 is opened.
- the 19 is a first brake power relay driver.
- the first brake power relay driver 19 is composed of a transistor.
- the first brake power relay driver 19 is connected in series to the brake power relay 17 on the brake power relay wiring 18.
- Reference numeral 20 denotes a second brake power relay driver.
- the second brake power relay driver 20 is formed of a transistor.
- the second brake power relay driver 20 is connected in series to the brake power relay 17 and the first brake power relay driver 19 on the brake power relay wiring 18. That is, the first and second brake power relay drivers 20 have a dual system configuration with respect to the brake power relay 17.
- each driver 15, 16, 19, 20 also has a dual system configuration using the first arithmetic unit 21 and the second arithmetic unit 2.
- the first arithmetic unit 21 has a function of outputting a control command corresponding to the situation to the first motor power relay driver 15 and the first brake power relay driver 19.
- the second arithmetic unit 22 has a function of outputting a control command corresponding to the situation to the second motor power relay driver 16 and the second brake power relay driver 20.
- the first arithmetic unit 21 has a function of outputting a drive command for applying a drive voltage to the motor power relay 13 to the first motor power relay driver 15. Further, the first arithmetic unit 21 has a function of outputting a cutoff command for cutting off the drive voltage to the motor power relay 13 to the first motor power relay driver 15. Further, the first arithmetic unit 21 has a function of outputting a drive command for applying a drive voltage to the brake power supply relay 17 to the first brake power supply relay driver 19. In addition, the first arithmetic unit 21 has a function of outputting a cut-off command for cutting off the drive voltage to the brake power supply relay 17 to the first brake power supply relay driver 19.
- the second arithmetic unit 22 has a function of outputting a drive command for applying a drive voltage to the motor power relay 13 to the second motor power relay driver 16. Further, the second arithmetic unit 22 has a function of outputting a cutoff command for cutting off the drive voltage to the motor power relay 13 to the second motor power relay driver 16. Further, the second arithmetic unit 22 has a function of outputting a drive command for applying a drive voltage to the brake power supply relay 17 to the second brake power supply relay driver 20. In addition, the second arithmetic unit 22 has a function of outputting a cutoff command for cutting off the drive voltage to the brake power relay 17 to the second brake power relay driver 16.
- the motor power relay diagnosis contact 23 is a contact for motor power relay diagnosis.
- the motor power relay diagnosis contact 23 is composed of a contact.
- the motor power relay diagnosis contact 23 is provided on the wiring between the power source and the first and second arithmetic devices 21 and 22.
- This motor power relay diagnosis contact 23 functions as a contact signal output device that outputs a diagnosis a contact signal according to the operation of the motor power relay 13.
- the brake power relay diagnosis contact 24 is a brake power relay diagnostic contact.
- the brake power relay diagnosis contact 24 is composed of a contact.
- the brake power relay diagnosis contact 24 is provided on the wiring between the power source and the first and second arithmetic devices 21 and 22.
- the brake power relay diagnosis contact 24 functions as a contact signal output device that outputs a diagnosis a contact signal in accordance with the operation of the brake power relay 17.
- the electronic safety device 12 configured as described above receives various signals indicating the operation state of the elevator, such as the stop state of the car 6. If the car 6 stops during normal operation of the elevator, the first and second arithmetic devices 21 and 22 perform a cooperative operation to self-diagnose the failure of each relay driver 15, 16, 19, and 20. Is configured to do.
- one of the first and second arithmetic devices 21 and 22 outputs a drive command to the corresponding driver.
- the other of the first and second arithmetic devices 21 and 22 outputs a cutoff command to the corresponding driver.
- the first and second arithmetic units 21 and 22 monitor the output state of the diagnostic contact signals via the diagnostic contacts 23 and 24 and perform fault diagnosis of the relay drivers 15, 16, 19, and 20. Configured to do.
- failure diagnosis method for the first and second motor power relay drivers 15 and 16 and the first and second brake power relay drivers 19 and 20 will be described in detail.
- the failure diagnosis of the first and second motor power relay drivers 15 and 16 and the failure diagnosis of the first and second brake power relay drivers 19 and 20 are performed in the same manner. Therefore, hereinafter, failure diagnosis of the first and second motor power supply relay drivers 15 and 16 will be described with reference to FIGS. 2 and 3.
- FIG. 2 is a diagram for explaining a failure diagnosis procedure when the motor power relay diagnosis contact of the elevator safety device according to Embodiment 1 of the present invention is closed.
- FIG. 3 is a diagram for explaining a failure diagnosis procedure when the motor power relay diagnosis contact of the elevator safety device according to Embodiment 1 of the present invention is open.
- reference numeral 25 denotes a control command to the first motor power relay driver 15.
- the first arithmetic unit 21 outputs a Hi level signal as a drive command to the control terminal of the first motor power relay driver 15.
- the first arithmetic unit 21 outputs a Low level signal as a cutoff command to the control terminal of the first motor power relay driver 15.
- the second arithmetic unit 22 outputs a Hi level signal as a drive command to the control terminal of the second motor power relay driver 16.
- the second arithmetic unit 22 outputs a Low level signal as a cutoff command to the control terminal of the second motor power relay driver 16.
- 27 is a signal state of the contact 23 for motor power relay diagnosis. Specifically, when the motor power relay diagnosis contact 23 is closed, a Hi level signal is input to the first and second arithmetic devices 21 and 22. On the other hand, when the motor power relay diagnostic contact 23 is open, a low level signal is input to the first and second arithmetic devices 21 and 22.
- the first and second arithmetic devices 21 and 22 both output drive commands as control commands 25 and 26, respectively.
- both the first and second motor power relay drivers 15 and 16 are in the ON state, a drive voltage is applied to the motor power relay 13.
- the signal state 27 of the motor power supply relay diagnosis contact 23 is closed.
- the first arithmetic unit 21 outputs a cutoff command as the control command 25, and the second arithmetic unit 22 maintains the output of the drive command as the control command 26.
- the signal state 27 of the motor power supply relay diagnosis contact 23 is in an open state before the predetermined time elapses after the first arithmetic unit 21 outputs the cutoff command.
- the first and second arithmetic devices 21 and 22 determine that the first motor power driver 15 has been turned off following the cutoff command, and determine that no short circuit abnormality has occurred.
- the first arithmetic unit 21 outputs a drive command as the control command 25 and the second arithmetic unit 22 outputs a shut-off command as the control command 26.
- the signal state 27 of the motor power supply relay diagnosis contact 23 remains open even if a predetermined time has elapsed after the second arithmetic unit 22 outputs the cutoff command.
- the first and second arithmetic devices 21 and 22 determine that the second motor power driver 16 maintains the ON state without following the cutoff command, and determines that a short circuit abnormality has occurred. .
- the motor power relay diagnosis contact 23 is open will be described with reference to FIG.
- the first and second arithmetic devices 21 and 22 both output a cutoff command as the control commands 25 and 26.
- the first and second motor power relay drivers 15 and 16 are in the OFF state, the drive voltage to the motor power relay 13 is cut off.
- the signal state 27 of the motor power relay diagnosis contact 23 is in an open state.
- the first arithmetic device 21 maintains the output of the shut-off command as the control command 25, and the second arithmetic device 22 outputs the drive command as the control command 26.
- the signal state 27 of the motor power supply relay diagnosis contact 23 remains open even if a predetermined time has elapsed.
- the first and second arithmetic devices 21 and 22 determine that the first motor power driver 15 is maintaining the OFF state following the cutoff command, and determines that no short circuit abnormality has occurred.
- the first arithmetic unit 21 outputs a drive command as the control command 25 and the second arithmetic unit 22 outputs a shut-off command as the control command 26.
- the signal state 27 of the motor power supply relay diagnosis contact 23 becomes an open state within a predetermined time set in advance.
- the first and second arithmetic devices 21 and 22 determine that the second motor power driver 16 maintains the ON state without following the cutoff command, and determines that a short circuit abnormality has occurred. .
- one of the first and second arithmetic devices 21 and 22 outputs a drive command, and the other of the first and second arithmetic devices 21 and 22 outputs a cutoff command.
- a cooperative operation is performed.
- the 1st and 2nd arithmetic units 21 and 22 perform failure diagnosis of each driver 15 etc. based on the signal state of each diagnostic contact 23 and 24 in cooperation operation.
- the a-contact signal when the a-contact signal is input to the first and second arithmetic units 21 and 22, after the cooperative operation is performed, the a-contact signal When the input continues, it is determined that the driver corresponding to the other of the first and second arithmetic devices 21 and 22 is abnormal. Further, when the a contact signal is input before the predetermined time elapses after the cooperative operation is performed when the a contact command is not input, the first and second arithmetic units 21. , 22 is determined to be abnormal.
- the first and second arithmetic devices 21 and 22 perform failure diagnosis of each relay driver 15 and the like when the car 6 is stopped. For this reason, failure diagnosis of each relay driver 15 etc. can be performed, without disturbing operation of an elevator.
- the elevator safety device can be used for an elevator that cuts off power supply to a motor or a brake in an emergency.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Control Of Electric Motors In General (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
図1はこの発明の実施の形態1におけるエレベータの安全装置が利用されるエレベータ全体の構成図である。
図1において、1はモータ電源である。2は電力変換装置である。3はモータである。このモータ3は、電力変換装置2を介してモータ電源1から供給された電力により回転する機能を備える。4はシーブである。このシーブ4は、モータ3の回転に追従して回転する機能を備える。
13はモータ電源リレーである。このモータ電源リレー13は、電源と接地との間に設けられたモータ電源リレー配線14上に配置される。このモータ電源リレー13は、モータ電源リレー接点10の閉成及び開放を制御するためのものである。即ち、モータ電源リレー13に駆動電圧が印加されている場合は、モータ電源リレー接点10が閉成する。一方、モータ電源リレー13への駆動電圧が遮断されている場合は、モータ電源リレー接点10が開放する。
5 主ロープ、 6 乗りかご、 7 釣合おもり、 8 ブレーキ電源、
9 ブレーキ、 10 モータ電源リレー接点、 11 ブレーキ電源リレー接点、
12 電子安全装置、 13 モータ電源リレー、 14 モータ電源リレー用配線、 15 第1モータ電源リレードライバ、 16 第2モータ電源リレードライバ、
17 ブレーキ電源リレー、 18 ブレーキ電源リレー用配線、
19 第1ブレーキ電源リレードライバ、 20 第2ブレーキ電源リレードライバ、 21 第1演算装置、 22 第2演算装置、 23 モータ電源リレー診断用接点、
24 ブレーキ電源リレー診断用接点、 25 第1ドライバへの制御指令、
26 第2ドライバへの制御指令、 27 モータ電源リレー診断用接点信号
Claims (4)
- エレベータのモータ又はブレーキへの電源供給を遮断する機能を有するリレーと、
前記リレーに対して直列に接続された第1ドライバと、
前記リレー及び前記第1ドライバに対して直列に接続された第2ドライバと、
前記リレーへ駆動電圧を印加するための駆動指令と前記駆動電圧を遮断するための遮断指令の一方を状況に応じて前記第1ドライバに出力する第1演算装置と、
前記駆動電圧を印加するための駆動指令と前記駆動電圧を遮断するための遮断指令の一方を状況に応じて前記第2ドライバに出力する第2演算装置と、
前記リレーの動作に応じて診断用接点信号を出力する接点信号出力装置と、
を備え、
前記第1及び第2演算装置の一方が前記駆動指令を出力するとともに前記第1及び第2演算装置の他方が前記遮断指令を出力するように協調動作が実施され、
前記第1及び第2演算装置は、前記協調動作中の前記接点信号出力装置による前記診断用接点信号の出力状態に基づいて、前記第1及び第2ドライバの故障診断を行うことを特徴とするエレベータの安全装置。 - 前記接点信号出力装置は、前記診断用接点信号としてa接点信号を出力し、
前記第1及び第2演算装置は、前記第1及び第2演算装置に前記a接点信号が入力されているときに前記協調動作が実施された後、予め設定された一定時間が経過しても前記a接点信号の入力が継続している場合は、前記第1及び第2演算装置の他方に対応するドライバを異常と判定することを特徴とする請求項1記載のエレベータの安全装置。 - 前記第1及び第2演算装置は、前記第1及び第2演算装置に前記a接点指令が入力されていないときに前記協調動作が実施された後、予め設定された一定時間が経過する前に前記a接点信号が入力された場合は、前記第1及び第2演算装置の他方に対応するドライバを異常と判定することを特徴とする請求項2記載のエレベータの安全装置。
- 前記第1及び第2演算装置は、前記エレベータのかごの停止時に、前記協調動作を実施し、前記第1及び第2ドライバの故障診断を行うことを特徴とする請求項1~請求項3のいずれかに記載のエレベータの安全装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2011537046A JPWO2011048664A1 (ja) | 2009-10-20 | 2009-10-20 | エレベータの安全装置 |
EP09850562A EP2492231A1 (en) | 2009-10-20 | 2009-10-20 | Safety device for elevator |
CN2009801617294A CN102574662A (zh) | 2009-10-20 | 2009-10-20 | 电梯的安全装置 |
KR1020127004007A KR20120042991A (ko) | 2009-10-20 | 2009-10-20 | 엘리베이터의 안전 장치 |
PCT/JP2009/068056 WO2011048664A1 (ja) | 2009-10-20 | 2009-10-20 | エレベータの安全装置 |
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PCT/JP2009/068056 WO2011048664A1 (ja) | 2009-10-20 | 2009-10-20 | エレベータの安全装置 |
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WO2011048664A1 true WO2011048664A1 (ja) | 2011-04-28 |
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PCT/JP2009/068056 WO2011048664A1 (ja) | 2009-10-20 | 2009-10-20 | エレベータの安全装置 |
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EP (1) | EP2492231A1 (ja) |
JP (1) | JPWO2011048664A1 (ja) |
KR (1) | KR20120042991A (ja) |
CN (1) | CN102574662A (ja) |
WO (1) | WO2011048664A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013142038A (ja) * | 2012-01-12 | 2013-07-22 | Hitachi Ltd | 電子安全エレベータ |
WO2014045728A1 (ja) * | 2012-09-21 | 2014-03-27 | 富士電機株式会社 | 電磁ブレーキ制御装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109843772B (zh) * | 2016-11-08 | 2020-10-23 | 株式会社日立制作所 | 电梯控制装置、控制方法和电梯 |
CN113677611B (zh) * | 2019-03-29 | 2023-07-04 | 因温特奥股份公司 | 用于中断电梯设备的由供电装置供电的驱动机的扭矩生成的安全扭矩切断装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004076326A1 (ja) * | 2003-02-25 | 2004-09-10 | Mitsubishi Denki Kabushiki Kaisha | エレベーター用調速器 |
JP2007510608A (ja) * | 2003-11-12 | 2007-04-26 | コネ コーポレイション | エレベータブレーキおよびブレーキ制御回路 |
WO2008012896A1 (fr) * | 2006-07-27 | 2008-01-31 | Mitsubishi Electric Corporation | Dispositif d'ascenseur |
WO2008152722A1 (ja) * | 2007-06-14 | 2008-12-18 | Mitsubishi Electric Corporation | エレベータ装置 |
JP2009023820A (ja) * | 2007-07-23 | 2009-02-05 | Toshiba Elevator Co Ltd | エレベータの安全監視システム |
-
2009
- 2009-10-20 CN CN2009801617294A patent/CN102574662A/zh active Pending
- 2009-10-20 EP EP09850562A patent/EP2492231A1/en not_active Withdrawn
- 2009-10-20 KR KR1020127004007A patent/KR20120042991A/ko active IP Right Grant
- 2009-10-20 WO PCT/JP2009/068056 patent/WO2011048664A1/ja active Application Filing
- 2009-10-20 JP JP2011537046A patent/JPWO2011048664A1/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004076326A1 (ja) * | 2003-02-25 | 2004-09-10 | Mitsubishi Denki Kabushiki Kaisha | エレベーター用調速器 |
JP2007510608A (ja) * | 2003-11-12 | 2007-04-26 | コネ コーポレイション | エレベータブレーキおよびブレーキ制御回路 |
WO2008012896A1 (fr) * | 2006-07-27 | 2008-01-31 | Mitsubishi Electric Corporation | Dispositif d'ascenseur |
WO2008152722A1 (ja) * | 2007-06-14 | 2008-12-18 | Mitsubishi Electric Corporation | エレベータ装置 |
JP2009023820A (ja) * | 2007-07-23 | 2009-02-05 | Toshiba Elevator Co Ltd | エレベータの安全監視システム |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013142038A (ja) * | 2012-01-12 | 2013-07-22 | Hitachi Ltd | 電子安全エレベータ |
WO2014045728A1 (ja) * | 2012-09-21 | 2014-03-27 | 富士電機株式会社 | 電磁ブレーキ制御装置 |
JP5885005B2 (ja) * | 2012-09-21 | 2016-03-15 | 富士電機株式会社 | 電磁ブレーキ制御装置 |
Also Published As
Publication number | Publication date |
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EP2492231A1 (en) | 2012-08-29 |
CN102574662A (zh) | 2012-07-11 |
JPWO2011048664A1 (ja) | 2013-03-07 |
KR20120042991A (ko) | 2012-05-03 |
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