EP2514703B1 - Elevator device - Google Patents
Elevator device Download PDFInfo
- Publication number
- EP2514703B1 EP2514703B1 EP09852262.6A EP09852262A EP2514703B1 EP 2514703 B1 EP2514703 B1 EP 2514703B1 EP 09852262 A EP09852262 A EP 09852262A EP 2514703 B1 EP2514703 B1 EP 2514703B1
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- EP
- European Patent Office
- Prior art keywords
- control device
- signal
- control signal
- brake
- driver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000000903 blocking effect Effects 0.000 claims description 48
- 238000001514 detection method Methods 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004092 self-diagnosis Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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Classifications
-
- 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
- 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
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
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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
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
Definitions
- the present invention relates to an elevator apparatus.
- a conventional elevator apparatus controls a motor power supply relay or a brake power supply relay using a brake control device without following a command from an elevator control device in an emergency stop.
- the brake control device can control the motor power supply relay or the like to move a car to an evacuation floor or the like (for example, see Parent Literature 1).
- Document EP1852382A1 shows an elevator apparatus according the preamble of claim 1.
- Patent Literature 1 International Publication No. WO 2007/060733
- Patent Literature 1 when the brake control device fails and cannot control the motor power supply relay or the brake power supply relay, the car cannot be moved to the evacuation floor or the like. Thus, a user may be trapped in the car in an emergency stop.
- the present invention is achieved in view of the above problem, and has an object to provide an elevator apparatus that can control a motor power supply relay or the like even if a brake control device fails.
- An elevator apparatus of the present invention includes a relay having a function of blocking supply of electric power to a motor or a brake of an elevator, a driver that drives the relay, an operation control device that outputs a control signal to the driver, a brake control device that outputs a control signal according to the control signal output from the operation control device in normal time, and outputs a control signal independent of the control signal output from the operation control device in an emergency stop of the elevator and a switching device that receives as an input the control signal output from the operation control device and the control signal output from the brake control device, and that switches the control signal to be output to the driver from the control signal output from the brake control device to the control signal output from the operation control device when the brake control device fails.
- a motor power supply relay or the like can be controlled even if a brake control device fails.
- Figure 1 is a configuration diagram of an elevator apparatus according to Embodiment 1.
- reference numeral 1 denotes a motor power supply.
- Reference numeral 2 denotes a power conversion device.
- Reference numeral 3 denotes a motor. The motor 3 is rotated by electric power supplied from the motor power supply 1 via the power conversion device 2.
- Reference numeral 4 denotes a sheave.
- the sheave 4 is rotated with rotation of the motor 3.
- Reference numeral 5 denotes a main rope.
- the main rope 5 is wound around the sheave 4.
- Reference numeral 6 denotes a car.
- the car 6 is connected to one end of the main rope 5.
- Reference numeral 7 denotes a counterweight.
- the counterweight 7 is connected to the other end of the main rope 5.
- Reference numeral 8 is a brake power supply.
- Reference numeral 9 is a brake coil.
- Reference numeral 10 is a brake shoe. The brake shoe 10 provides a braking force to the motor 3 on the basis of a biasing force of a spring (not shown) and an electromagnetic force generated by a current flowing through the brake coil 9.
- Reference numeral 11 is a motor power supply relay contact.
- the motor power supply relay contact 11 is constituted by a normally open contact.
- the motor power supply relay contact 11 is provided on a wire between the motor power supply 1 and the power conversion device 2.
- Reference numeral 12 denotes a brake power supply relay contact.
- the brake power supply contact 12 is constituted by a normally open contact.
- the brake power supply contact 12 is provided on a brake coil wire between the brake coil 9 and the ground.
- Reference numeral 13 denotes a relay power supply.
- Reference numeral 14 denotes a motor power supply relay coil.
- the motor power supply relay coil 14 is placed on a motor power supply relay wire of the relay power supply 13.
- the motor power supply relay coil 14 controls closing and opening of the motor power supply relay contact 11.
- Reference numeral 15 denotes a brake power supply relay coil.
- the brake power supply relay coil 15 is placed on a brake power supply relay wire between the relay power supply 13 and the ground.
- the brake power supply relay coil 15 controls closing and opening of the brake power supply relay contact 12.
- Reference numeral 16 denotes a motor power supply relay driver.
- the motor power supply relay driver 16 is constituted by a transistor.
- the motor power supply relay driver 16 is connected in series to the motor power supply relay coil 14 on the motor power supply relay wire.
- Reference numeral 17 denotes a brake power supply relay driver.
- the brake power supply relay driver 17 is constituted by a transistor.
- the brake power supply relay driver 17 is connected in series to the brake power supply relay coil 15 on the brake power supply relay wire.
- Reference numeral 18 denotes a brake coil current control driver.
- the brake coil current control driver 18 is constituted by a transistor.
- the brake coil current control driver 18 is connected in series to the brake coil 9 and the brake power supply relay contact 12 on the brake coil wire.
- Reference numeral 19 denotes an operation control device.
- the operation control device 19 controls an operation of the elevator.
- the operation control device 19 outputs a control signal AA to the drivers 16 to 18.
- Reference numeral 20 denotes a brake control device. To the brake control device 20, the control signal AA is input from the operation control device 19. The brake control device 20 outputs a control signal BB to the drivers 16 to 18 according to the control signal AA in normal time.
- the brake control device 20 does not follow the control signal AA from the operation control device 19, but independently outputs the control signal BB to the drivers 16 to 18.
- the brake control device 20 outputs a failure detection signal CC when detecting its failure by a self-diagnosis function.
- the failure detection signal CC is input to a switching device 21.
- the control signal AA is directly input to the switching device 21 without via the brake control device 20.
- a configuration of the switching device 21 will be specifically described below.
- the switching device 21 includes a signal switching circuit 22, a signal blocking timer 23, and a signal blocking circuit 24. To the signal switching circuit 22, the control signal AA, the control signal BB, and the failure detection signal CC are input.
- the signal switching circuit 22 outputs a control signal DD to the motor power supply relay driver 16, a control signal EE to the brake power supply relay driver 17, and a control signal FF to the brake coil current control driver 18.
- the failure detection signal CC is input.
- the signal blocking timer 23 outputs a blocking command GG after a lapse of a preset certain time from the input of the failure detection signal CC.
- the control signals DD, EE and FF and the blocking command GG are input.
- the brake control device 20 outputs the control signal BB according to the control signal AA of the operation control device 19 in normal time.
- the signal switching circuit 22 outputs the control signals DD, EE and FF according to the control signal BB.
- the control signals DD, EE and FF are input to the signal blocking circuit 24.
- the signal blocking circuit 24 transmits the control signals DD, EE and FF to control terminals of the drivers 16 to 18. Then, the drivers 16 to 18 are respectively operated according to the control signals DD, EE and FF. According to these operations, supply of electric power to the motor 3 and the brake coil 9 is controlled.
- the brake control device 20 does not follow the control signal AA of the operation control device 19, but independently outputs the control signal BB for controlling reduction of deceleration of the elevator. Then, the signal switching circuit 22 outputs the control signals DD, EE and FF according to the independent control signal BB.
- the control signals DD, EE and FF are input to the signal blocking circuit 24.
- the signal blocking circuit 24 transmits the control signals DD, EE and FF to the control terminals of the drivers 16 to 18, respectively.
- the drivers 16 to 18 are respectively operated according to the control signals DD, EE and FF. According to these operations, the supply of electric power to the motor 3 and the brake coil 9 is controlled. According to the operations of the motor 3 and the brake shoe 10, the reduction of deceleration of the elevator is controlled.
- the signal switching circuit 22 switches the control signals DD, EE and FF to be output to the signal blocking circuit 24 to those according to the control signal AA.
- the operation control device 19 outputs the control signal AA for moving the car 6 to a predetermined evacuation floor within a certain time from the input of the failure detection signal CC.
- the signal switching circuit 22 outputs the control signals DD, EE and FF.
- the control signals DD, EE and FF are input to the signal blocking circuit 24.
- the signal blocking circuit 24 transmits the control signals DD, EE and FF to the control terminals of the drivers 16 to 18, respectively.
- the drivers 16 to 18 are respectively operated according to the control signals DD, EE and FF. According to these operations, the supply of electric power to the motor 3 and the brake coil 9 is controlled, According to the operations of the motor 3 and the brake shoe 10, the car 6 is moved to the predetermined evacuation floor.
- the signal blocking timer 23 After a certain time has elapsed from the failure of the brake control device 20, the signal blocking timer 23 outputs the blocking command GG.
- the signal blocking circuit 24 blocks the transmission of the control signals DD, EE and FF when the blocking command GG is input. Thus, the supply of electric power to the motor power supply relay coil 14 and the brake power supply relay coil 15 is blocked, and application of a voltage to the brake coil 9 is stopped. Specifically, a stopping state of use of the elevator is maintained.
- the switching device 21 switches the control signal to be output to the drivers 16 to 18 from the control signal BB output from the brake control device 20 to the control signal AA output from the operation control device 19.
- the supply of electric power to the motor power supply relay coil 14 or the like can be controlled to prevent a user from being trapped in the car.
- the switching device 21 blocks the transmission of the control signals DD, EE and FF to the drivers 16 to 18 after a lapse of a certain time from the input of the failure detection signal CC.
- the signal blocking circuit 24 blocks the transmission of the control signals DD, EE and FF to the drivers 16 to 18 when the blocking command GG is input.
- the use of the elevator can be stopped. This can prevent accidental use of the elevator during the failure of the brake control device 20.
- FIG. 2 is a configuration diagram of an elevator apparatus according to Embodiment 2.
- the same or corresponding parts as or to those in Embodiment 1 are denoted by the same reference numerals, and descriptions thereof will be omitted.
- Embodiment 1 After a lapse of a certain time from the failure of the brake control device 20, the transmission of the control signals DD, EE and FF is blocked. On the other hand, in Embodiment 2, when a brake control device 20 seriously fails, transmission of control signals DD, EE and FF is immediately blocked. In Embodiment 2, soundness of a signal blocking timer 23 is diagnosed. Embodiment 2 will be now described in detail.
- a brake control device 20 outputs a serious failure detection signal HH when detecting a more serious failure than that in output of a failure detection signal CC by a self-diagnosis function.
- the serious failure detection signal HH is input to a signal blocking circuit 24, the signal blocking circuit 24 immediately blocks transmission of the control signals DD, EE and FF.
- a motor power supply relay diagnostic contact 25 and a brake power supply relay diagnostic contact 26 are provided.
- the contacts 25 and 26 are constituted by normally closed contacts.
- Contact signals II and JJ thereof are input to the brake control device 20.
- the brake control device 20 detects operation states of a motor power supply relay coil 14 and a brake power supply coil 15.
- the signal blocking circuit 24 sets a blocking flag KK when blocking the transmission of the control signals DD, EE and FF.
- the blocking flag KK is input to the brake control device 20.
- the brake control device 20 detects an operation state of the signal blocking circuit 24.
- the brake control device 20 outputs a false failure detection signal CC during outputting a control signal BB for driving the relay coils 14 and 15 to the motor power supply relay driver 16 and the brake power supply relay driver 17.
- the brake control device 20 diagnoses that the signal blocking timer 23 is sound.
- the brake control device 20 outputs a false serious failure detection signal HH during outputting the control signal BB for driving the relay coils 14 and 15 to the motor power supply relay driver 16 and the brake power supply relay driver 17.
- the brake control device 20 diagnoses that the signal blocking timer 23 is sound when confirming that the blocking flag KK is input before a lapse of a certain time from the output of the failure detection signal HH, and also confirming the input of the contact signals II and JJ of the diagnostic contacts 25 and 26.
- the brake control device 20 outputs the false failure detection signal CC and the false serious failure detection signal HH during outputting the control signal BB to the motor power supply relay driver 16 and the brake power supply relay driver 17 to diagnose soundness of the signal blocking timer 23.
- the failure of the signal blocking timer 23 does not block the output of the control signals DD and EE when the brake control device 20 actually fails.
- the elevator apparatus can be used for an elevator for controlling the motor power supply relay or the brake power supply relay using the brake control device without following a command from an elevator control device in an emergency stop.
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Description
- The present invention relates to an elevator apparatus.
- A conventional elevator apparatus controls a motor power supply relay or a brake power supply relay using a brake control device without following a command from an elevator control device in an emergency stop. With such an elevator apparatus, the brake control device can control the motor power supply relay or the like to move a car to an evacuation floor or the like (for example, see Parent Literature 1). Document
EP1852382A1 shows an elevator apparatus according the preamble ofclaim 1. - Patent Literature 1: International Publication No.
WO 2007/060733 - However, for the apparatus described in
Patent Literature 1, when the brake control device fails and cannot control the motor power supply relay or the brake power supply relay, the car cannot be moved to the evacuation floor or the like. Thus, a user may be trapped in the car in an emergency stop. - The present invention is achieved in view of the above problem, and has an object to provide an elevator apparatus that can control a motor power supply relay or the like even if a brake control device fails.
- An elevator apparatus of the present invention includes a relay having a function of blocking supply of electric power to a motor or a brake of an elevator, a driver that drives the relay, an operation control device that outputs a control signal to the driver, a brake control device that outputs a control signal according to the control signal output from the operation control device in normal time, and outputs a control signal independent of the control signal output from the operation control device in an emergency stop of the elevator and a switching device that receives as an input the control signal output from the operation control device and the control signal output from the brake control device, and that switches the control signal to be output to the driver from the control signal output from the brake control device to the control signal output from the operation control device when the brake control device fails.
- According to the present invention, a motor power supply relay or the like can be controlled even if a brake control device fails.
-
-
Figure 1 is a configuration diagram of an elevator apparatus according toEmbodiment 1. -
Figure 2 is a configuration diagram of an elevator apparatus according toEmbodiment 2. - Embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and overlapping descriptions thereof will be simplified or omitted.
-
Figure 1 is a configuration diagram of an elevator apparatus according toEmbodiment 1. - In
Figure 1 ,reference numeral 1 denotes a motor power supply.Reference numeral 2 denotes a power conversion device.Reference numeral 3 denotes a motor. Themotor 3 is rotated by electric power supplied from themotor power supply 1 via thepower conversion device 2. -
Reference numeral 4 denotes a sheave. Thesheave 4 is rotated with rotation of themotor 3.Reference numeral 5 denotes a main rope. Themain rope 5 is wound around thesheave 4. Reference numeral 6 denotes a car. The car 6 is connected to one end of themain rope 5. Reference numeral 7 denotes a counterweight. The counterweight 7 is connected to the other end of themain rope 5. - Reference numeral 8 is a brake power supply.
Reference numeral 9 is a brake coil.Reference numeral 10 is a brake shoe. Thebrake shoe 10 provides a braking force to themotor 3 on the basis of a biasing force of a spring (not shown) and an electromagnetic force generated by a current flowing through thebrake coil 9. -
Reference numeral 11 is a motor power supply relay contact. The motor powersupply relay contact 11 is constituted by a normally open contact. The motor powersupply relay contact 11 is provided on a wire between themotor power supply 1 and thepower conversion device 2.Reference numeral 12 denotes a brake power supply relay contact. The brakepower supply contact 12 is constituted by a normally open contact. The brakepower supply contact 12 is provided on a brake coil wire between thebrake coil 9 and the ground. -
Reference numeral 13 denotes a relay power supply.Reference numeral 14 denotes a motor power supply relay coil. The motor powersupply relay coil 14 is placed on a motor power supply relay wire of therelay power supply 13. The motor powersupply relay coil 14 controls closing and opening of the motor powersupply relay contact 11. -
Reference numeral 15 denotes a brake power supply relay coil. The brake powersupply relay coil 15 is placed on a brake power supply relay wire between therelay power supply 13 and the ground. The brake powersupply relay coil 15 controls closing and opening of the brake powersupply relay contact 12. -
Reference numeral 16 denotes a motor power supply relay driver. The motor powersupply relay driver 16 is constituted by a transistor. The motor powersupply relay driver 16 is connected in series to the motor powersupply relay coil 14 on the motor power supply relay wire. -
Reference numeral 17 denotes a brake power supply relay driver. The brake powersupply relay driver 17 is constituted by a transistor. The brake powersupply relay driver 17 is connected in series to the brake powersupply relay coil 15 on the brake power supply relay wire. -
Reference numeral 18 denotes a brake coil current control driver. The brake coilcurrent control driver 18 is constituted by a transistor. The brake coilcurrent control driver 18 is connected in series to thebrake coil 9 and the brake powersupply relay contact 12 on the brake coil wire. -
Reference numeral 19 denotes an operation control device. Theoperation control device 19 controls an operation of the elevator. For example, theoperation control device 19 outputs a control signal AA to thedrivers 16 to 18. -
Reference numeral 20 denotes a brake control device. To thebrake control device 20, the control signal AA is input from theoperation control device 19. Thebrake control device 20 outputs a control signal BB to thedrivers 16 to 18 according to the control signal AA in normal time. - Further, when an emergency stop signal is input to the
brake control device 20 from an seismic sensor or the like (not shown), thebrake control device 20 does not follow the control signal AA from theoperation control device 19, but independently outputs the control signal BB to thedrivers 16 to 18. - In this embodiment, the
brake control device 20 outputs a failure detection signal CC when detecting its failure by a self-diagnosis function. The failure detection signal CC is input to aswitching device 21. Besides the control signal BB, the control signal AA is directly input to theswitching device 21 without via thebrake control device 20. A configuration of theswitching device 21 will be specifically described below. - The switching
device 21 includes asignal switching circuit 22, asignal blocking timer 23, and asignal blocking circuit 24. To thesignal switching circuit 22, the control signal AA, the control signal BB, and the failure detection signal CC are input. Thesignal switching circuit 22 outputs a control signal DD to the motor powersupply relay driver 16, a control signal EE to the brake powersupply relay driver 17, and a control signal FF to the brake coilcurrent control driver 18. - To the
signal blocking timer 23, the failure detection signal CC is input. Thesignal blocking timer 23 outputs a blocking command GG after a lapse of a preset certain time from the input of the failure detection signal CC. To thesignal blocking circuit 24, the control signals DD, EE and FF and the blocking command GG are input. - In the elevator apparatus having such a configuration, the
brake control device 20 outputs the control signal BB according to the control signal AA of theoperation control device 19 in normal time. Thesignal switching circuit 22 outputs the control signals DD, EE and FF according to the control signal BB. - The control signals DD, EE and FF are input to the
signal blocking circuit 24. Thesignal blocking circuit 24 transmits the control signals DD, EE and FF to control terminals of thedrivers 16 to 18. Then, thedrivers 16 to 18 are respectively operated according to the control signals DD, EE and FF. According to these operations, supply of electric power to themotor 3 and thebrake coil 9 is controlled. - In contrast to this, in an emergency stop, the
brake control device 20 does not follow the control signal AA of theoperation control device 19, but independently outputs the control signal BB for controlling reduction of deceleration of the elevator. Then, thesignal switching circuit 22 outputs the control signals DD, EE and FF according to the independent control signal BB. - The control signals DD, EE and FF are input to the
signal blocking circuit 24. Thesignal blocking circuit 24 transmits the control signals DD, EE and FF to the control terminals of thedrivers 16 to 18, respectively. Then, thedrivers 16 to 18 are respectively operated according to the control signals DD, EE and FF. According to these operations, the supply of electric power to themotor 3 and thebrake coil 9 is controlled. According to the operations of themotor 3 and thebrake shoe 10, the reduction of deceleration of the elevator is controlled. - In this embodiment, when the failure detection signal CC is input to the
signal switching circuit 22, thesignal switching circuit 22 switches the control signals DD, EE and FF to be output to thesignal blocking circuit 24 to those according to the control signal AA. At this time, theoperation control device 19 outputs the control signal AA for moving the car 6 to a predetermined evacuation floor within a certain time from the input of the failure detection signal CC. According to the control signal AA, thesignal switching circuit 22 outputs the control signals DD, EE and FF. - The control signals DD, EE and FF are input to the
signal blocking circuit 24. Thesignal blocking circuit 24 transmits the control signals DD, EE and FF to the control terminals of thedrivers 16 to 18, respectively. Then, thedrivers 16 to 18 are respectively operated according to the control signals DD, EE and FF. According to these operations, the supply of electric power to themotor 3 and thebrake coil 9 is controlled, According to the operations of themotor 3 and thebrake shoe 10, the car 6 is moved to the predetermined evacuation floor. - After a certain time has elapsed from the failure of the
brake control device 20, thesignal blocking timer 23 outputs the blocking command GG. Thesignal blocking circuit 24 blocks the transmission of the control signals DD, EE and FF when the blocking command GG is input. Thus, the supply of electric power to the motor powersupply relay coil 14 and the brake powersupply relay coil 15 is blocked, and application of a voltage to thebrake coil 9 is stopped. Specifically, a stopping state of use of the elevator is maintained. - According to
Embodiment 1 described above, when thebrake control device 20 fails, the switchingdevice 21 switches the control signal to be output to thedrivers 16 to 18 from the control signal BB output from thebrake control device 20 to the control signal AA output from theoperation control device 19. Thus, even if thebrake control device 10 fails, the supply of electric power to the motor powersupply relay coil 14 or the like can be controlled to prevent a user from being trapped in the car. - The switching
device 21 blocks the transmission of the control signals DD, EE and FF to thedrivers 16 to 18 after a lapse of a certain time from the input of the failure detection signal CC. Specifically, thesignal blocking circuit 24 blocks the transmission of the control signals DD, EE and FF to thedrivers 16 to 18 when the blocking command GG is input. - Thus, after the user in the car 6 is rescued on the evacuation floor or the like, the use of the elevator can be stopped. This can prevent accidental use of the elevator during the failure of the
brake control device 20. -
Figure 2 is a configuration diagram of an elevator apparatus according toEmbodiment 2. The same or corresponding parts as or to those inEmbodiment 1 are denoted by the same reference numerals, and descriptions thereof will be omitted. - In
Embodiment 1, after a lapse of a certain time from the failure of thebrake control device 20, the transmission of the control signals DD, EE and FF is blocked. On the other hand, inEmbodiment 2, when abrake control device 20 seriously fails, transmission of control signals DD, EE and FF is immediately blocked. InEmbodiment 2, soundness of asignal blocking timer 23 is diagnosed.Embodiment 2 will be now described in detail. - As shown in
Figure 2 , in this embodiment, abrake control device 20 outputs a serious failure detection signal HH when detecting a more serious failure than that in output of a failure detection signal CC by a self-diagnosis function. When the serious failure detection signal HH is input to asignal blocking circuit 24, thesignal blocking circuit 24 immediately blocks transmission of the control signals DD, EE and FF. - In this embodiment, a motor power supply relay
diagnostic contact 25 and a brake power supply relaydiagnostic contact 26 are provided. Thecontacts brake control device 20. Thus, thebrake control device 20 detects operation states of a motor powersupply relay coil 14 and a brakepower supply coil 15. - Further, the
signal blocking circuit 24 sets a blocking flag KK when blocking the transmission of the control signals DD, EE and FF. The blocking flag KK is input to thebrake control device 20. Thus, thebrake control device 20 detects an operation state of thesignal blocking circuit 24. - In the elevator apparatus having such a configuration, in the case without any call registration, the
brake control device 20 outputs a false failure detection signal CC during outputting a control signal BB for driving the relay coils 14 and 15 to the motor powersupply relay driver 16 and the brake powersupply relay driver 17. - At this time, if the
signal blocking timer 23 is sound, the transmission of the control signals DD and EE should not be blocked before a lapse of a certain time. Thus, when the blocking flag KK is first input to thebrake control device 20 after a lapse of a certain time from the output of the false failure detection signal CC, thebrake control device 20 diagnoses that thesignal blocking timer 23 is sound. - The
brake control device 20 outputs a false serious failure detection signal HH during outputting the control signal BB for driving the relay coils 14 and 15 to the motor powersupply relay driver 16 and the brake powersupply relay driver 17. - At this time, if the
signal blocking timer 23 is sound, the transmission of the control signals DD and EE should be immediately blocked before a lapse of a certain time from the output of the false serious failure detection signal HH. For a serious failure, it is also important to confirm that the driving of the relay coils 14 and 15 is actually stopped. - Thus, the
brake control device 20 diagnoses that thesignal blocking timer 23 is sound when confirming that the blocking flag KK is input before a lapse of a certain time from the output of the failure detection signal HH, and also confirming the input of the contact signals II and JJ of thediagnostic contacts - According to
Embodiment 2 described above, when thebrake control device 20 seriously fails, the transmission of the control signals DD, EE and FF is immediately blocked. This allows an immediate stop of use of the elevator when thebrake control device 20 seriously fails. - The
brake control device 20 outputs the false failure detection signal CC and the false serious failure detection signal HH during outputting the control signal BB to the motor powersupply relay driver 16 and the brake powersupply relay driver 17 to diagnose soundness of thesignal blocking timer 23. Thus, the failure of thesignal blocking timer 23 does not block the output of the control signals DD and EE when thebrake control device 20 actually fails. - As described above, the elevator apparatus according to the present invention can be used for an elevator for controlling the motor power supply relay or the brake power supply relay using the brake control device without following a command from an elevator control device in an emergency stop.
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- 1
- motor power supply, 2 power conversion device, 3 motor,
- 4
- sheave, 5 main rope, 6 car, 7 counterweight,
- 8
- brake power supply, 9 brake coil, 10 brake shoe,
- 11
- motor power supply relay contact, 12 brake power supply relay contact,
- 13
- power supply, 14 motor power supply relay coil,
- 15
- brake power supply relay coil, 16 motor power supply relay driver,
- 17
- brake power supply relay driver, 18 brake coil current control driver,
- 19
- operation control device, 20 brake control device,
- 21
- switching device, 22 signal switching circuit,
- 23
- signal blocking timer, 24 signal blocking circuit,
- 25
- motor power supply relay diagnostic contact,
- 26
- brake power supply relay diagnostic contact.
Claims (5)
- An elevator apparatus comprising:a relay (14,15) having a function of blocking supply of electric power to a motor (3) or a brake (9) of an elevator;a driver (16,17) that drives the relay (14,15);an operation control device (19) that outputs a control signal to the driver (16, 17);a brake control device (20) that outputs a control signal according to the control signal output from the operation control device (19) in normal time, and outputs a control signal independent of the control signal output from the operation control device (19) in an emergency stop of the elevator; and characterized by further comprising a switching device (21) that receives as an input the control signal output from the operation control device (19) and the control signal output from the brake control device (20), and that switches the control signal to be output to the driver (16,17) from the control signal output from the brake control device (20) to the control signal output from the operation control device (19) when the brake control device (20) fails.
- The elevator apparatus according to claim 1, wherein the brake control device (20) outputs a failure detection signal in failure time,
the switching device (21) switches the control signal to be output to the driver (16,17) from the control signal output from the brake control device (20) to the control signal output from the operation control device (19) when the failure detection signal is input, and blocks transmission of the control signal to the driver (16,17) after a lapse of a certain time from the input of the failure detection signal. - The elevator apparatus according to claim 2, wherein the switching device (21) includes:a signal switching circuit (22) that receives as an input the control signal output from the operation control device (19) and the control signal output from the brake control device (20), and that switches the control signal to be output from the control signal output from the brake control device (20) to the control signal output from the operation control device (19) when the failure detection signal is input;a signal blocking timer (23) that outputs a blocking command after a lapse of a certain time from the input of the failure detection signal; anda signal blocking circuit (24) that transmits the control signal output from the signal switching circuit to the driver (16,17), and blocks the transmission of the control signal to the driver (16,17) when the blocking command is input.
- The elevator apparatus according to claim 3, wherein the brake control device (20) outputs a serious failure detection signal when a more serious failure occurs than that in the output of the failure detection signal, and
the signal blocking circuit (24) blocks the transmission of the control signal to the driver (16,17) when the serious failure detection signal is input. - The elevator apparatus according to claim 4, wherein
the brake control device (20) outputs a false failure detection signal during outputting a control signal for driving the relay (14,15), and confirms that the signal blocking circuit (24) blocks the transmission of the control signal to the driver (16,17) after a lapse of a certain time,
outputs a false serious failure detection signal during outputting the control signal for driving the relay (14,15), and confirms that the signal blocking circuit (24) blocks the transmission of the control signal to the driver (16,17) before a lapse of a certain time and that the driving of the relay (14,15) is stopped,
to diagnose soundness of the signal blocking timer (23).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/070890 WO2011074068A1 (en) | 2009-12-15 | 2009-12-15 | Elevator device |
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Publication Number | Publication Date |
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EP2514703A1 EP2514703A1 (en) | 2012-10-24 |
EP2514703A4 EP2514703A4 (en) | 2017-09-13 |
EP2514703B1 true EP2514703B1 (en) | 2018-09-05 |
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Family Applications (1)
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EP09852262.6A Active EP2514703B1 (en) | 2009-12-15 | 2009-12-15 | Elevator device |
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EP (1) | EP2514703B1 (en) |
JP (1) | JP5360231B2 (en) |
KR (1) | KR101338843B1 (en) |
CN (1) | CN102712444B (en) |
WO (1) | WO2011074068A1 (en) |
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AU2012297033B2 (en) * | 2011-08-16 | 2017-06-29 | Inventio Ag | Triggering of a lift brake in an emergency situation |
JP6132976B2 (en) * | 2014-04-03 | 2017-05-24 | 三菱電機株式会社 | Elevator control device |
WO2016113895A1 (en) * | 2015-01-16 | 2016-07-21 | 三菱電機株式会社 | Elevator safety control device and elevator safety control method |
US11078049B2 (en) | 2015-08-07 | 2021-08-03 | Otis Elevator Company | Elevator system including a permanent magnet (PM) synchronous motor drive system |
AU2016307418B2 (en) | 2015-08-07 | 2019-01-03 | Otis Elevator Company | Rescue control and method of operating an elevator system including a permanent magnet (PM) synchronous motor drive system |
Family Cites Families (13)
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JPH06239542A (en) * | 1993-02-18 | 1994-08-30 | Hitachi Ltd | Elevator device |
JP2002037545A (en) * | 2000-07-26 | 2002-02-06 | Matsushita Electric Works Ltd | Brake control circuit of elevator |
JP4273677B2 (en) * | 2001-04-20 | 2009-06-03 | 株式会社日立製作所 | Elevator equipment |
EP1852382B1 (en) * | 2005-02-25 | 2015-12-30 | Mitsubishi Denki Kabushiki Kaisha | Elevator apparatus |
JP4689337B2 (en) * | 2005-04-26 | 2011-05-25 | 三菱電機株式会社 | Elevator equipment |
US7918320B2 (en) * | 2005-11-25 | 2011-04-05 | Mitsubishi Electric Corporation | Emergency stop system for elevator |
US7896136B2 (en) * | 2006-03-02 | 2011-03-01 | Mitsubishi Electric Corporation | Elevator apparatus with brake control device |
WO2007108069A1 (en) * | 2006-03-17 | 2007-09-27 | Mitsubishi Denki Kabushiki Kaisha | Elevator device |
US7938231B2 (en) * | 2006-07-27 | 2011-05-10 | Mitsubishi Electric Corporation | Elevator apparatus having independent second brake control |
KR101080566B1 (en) * | 2006-12-05 | 2011-11-04 | 미쓰비시덴키 가부시키가이샤 | Elevator system |
FI120088B (en) * | 2007-03-01 | 2009-06-30 | Kone Corp | Arrangement and method of monitoring the security circuit |
KR101189952B1 (en) * | 2008-02-28 | 2012-10-12 | 미쓰비시덴키 가부시키가이샤 | Elevator system |
JP5197745B2 (en) * | 2008-06-27 | 2013-05-15 | 三菱電機株式会社 | Elevator apparatus and operation method thereof |
-
2009
- 2009-12-15 CN CN200980161880.8A patent/CN102712444B/en active Active
- 2009-12-15 WO PCT/JP2009/070890 patent/WO2011074068A1/en active Application Filing
- 2009-12-15 JP JP2011545874A patent/JP5360231B2/en active Active
- 2009-12-15 KR KR1020127004743A patent/KR101338843B1/en active IP Right Grant
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CN102712444A (en) | 2012-10-03 |
JP5360231B2 (en) | 2013-12-04 |
EP2514703A1 (en) | 2012-10-24 |
WO2011074068A1 (en) | 2011-06-23 |
JPWO2011074068A1 (en) | 2013-04-25 |
KR20120049293A (en) | 2012-05-16 |
KR101338843B1 (en) | 2013-12-06 |
CN102712444B (en) | 2014-10-29 |
EP2514703A4 (en) | 2017-09-13 |
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