JP2019001652A - Elevator device, failure detection device of speed detector and failure detection method of speed detector - Google Patents

Abstract

To provide an elevator device to which a failure detection device of a speed detector is added easily separate from a main control device.SOLUTION: In an elevator device that has an elevator control device 11 for controlling a lift of a car, a speed detector 9 for detecting a lift speed of the car, a door opening permission zone detector 5 for detecting a door opening permission zone which is a door opening and closing possible zone of a car, a door opening travel protection device for preventing a door opening travel of the car, a door opening travel control device 11 arranged in the door opening travel protection device separate from the elevator control device and a failure detection device 104 arranged in the door opening travel control device 11, the failure detection device 104 detects a problem that a signal from the speed detector 9 is not detected as a failure of the speed detector 9 when a lift operation of the car is detected based on the signal from the door opening permission zone detector 5 .SELECTED DRAWING: Figure 2

Description

  The present invention relates to an elevator apparatus, a speed detector failure detection apparatus, and a speed detector failure detection method.

  Japanese Unexamined Patent Publication No. 2002-284460 (Patent Document 1) discloses a technique related to a failure detection function of a speed detector included in an elevator apparatus. In this publication, “when the elevator starts up in automatic operation, the start command signal issued from the speed control means, the door zone detection signal indicating the elevator door opening / closing position, and the speed detector are output. When it is recognized from the speed detection signal that the vehicle has been activated from within the door zone, and the speed detection signal is less than a predetermined value and it is recognized that the car is outside the door zone, it is determined that the speed detector is abnormal. Have been described.

JP 2002-284460 A

  By the way, the elevator apparatus is obliged to install a door opening travel protection device (Unintended Car Movement Protection: UCMP) for preventing the car from rising while the door is open due to a brake failure. For this reason, for an elevator apparatus that is not originally provided with a door-opening travel protection device, a function of a door-opening travel protection device controller is added to the main control device of the elevator by a retrofit add-on method.

  As described above, another control device that is added by an add-on method to the main control device of the elevator includes a passenger car speed monitoring device for function enhancement. In this case, in order to ensure the soundness of the speed monitoring device, another control device to be added needs to have a speed detector failure detection function.

  However, the speed detector failure detection function described in Patent Document 1 described above uses a start command signal issued from the speed control means of the passenger car included in the main control device of the elevator to determine failure detection. . For this reason, when the above-described speed detector failure detection function is provided for another control device added by the add-on method, a connection path for inputting a start command signal from the main control device of the elevator is required. The work procedure when adding the control device becomes complicated.

  Accordingly, an object of the present invention is to provide an elevator apparatus in which a speed detector failure detection device is simply added separately from the main control device. The present invention also provides a speed detector failure detection device that can be added to the main control device of the elevator device in a simple procedure, and without relying on signals from the main control device of the elevator device. It is an object of the present invention to provide a speed detector failure detection method capable of detecting a speed detector failure.

In order to solve the above problems, for example, the configuration described in the claims is adopted.
The present application includes a plurality of means for solving the above-mentioned problems. For example, an elevator control device for controlling the raising / lowering of the riding car and a speed detector for detecting the raising / lowering speed of the riding car. A door opening permission zone detector for detecting a door opening permission zone that is a door opening / closing area of the riding basket, a door opening traveling protection device for preventing the riding car from opening the door, and the elevator Separately from the control device, in the elevator device having a door-opening travel control device provided in the door-opening travel protection device and a failure detection device of the speed detector provided in the door-opening travel control device, the failure The detection device detects the speed detection when the signal from the speed detector is not detected when the lifting / lowering movement of the car is detected based on the signal from the door opening permission zone detector. Detecting a failure of the vessel.

According to the present invention as described above, it is possible to obtain an elevator device in which a speed detector failure detection device is simply added in addition to the main control device.
Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

1 is an overall configuration diagram of an elevator apparatus according to an embodiment. It is a functional block diagram of a door-opening travel protection device provided with a failure detector for a speed detector according to an embodiment. It is a figure explaining the signal used for the failure detection apparatus of the speed detector which concerns on embodiment. It is a flowchart explaining the failure detection method of the speed detector in the elevator apparatus which concerns on embodiment.

  DESCRIPTION OF EMBODIMENTS Embodiments relating to an elevator apparatus, a speed detector failure detection apparatus, and a speed detector failure detection method according to the present invention will be described below in detail with reference to the drawings. In the embodiment described below, first, the overall configuration of the elevator apparatus will be described, and then a speed detector failure detection apparatus provided in the elevator apparatus and a speed detector failure detection method in the elevator apparatus will be described. explain.

≪Overall configuration of elevator device≫
Drawing 1 is a schematic structure figure for explaining the whole elevator device 1 composition of an embodiment. The elevator apparatus 1 according to the embodiment shown in the figure includes a door-open travel protection device 100, and the door-open travel protection device 100 is provided with a speed detector failure detection device 104. Such an elevator apparatus 1 includes a hoistway 1a and a machine room 1b.

  For example, the hoistway 1a is provided so as to penetrate the interior of a building or the like in the vertical direction, and in the interior, there is a riding cage 2, a counterweight 3, a main rope 4, a door opening permission zone detector 5, and a cage door. An open state detector 6a is accommodated. Further, the hoistway 1a is provided with a landing door 1c at a position corresponding to each landing floor of the wall portion, and a landing door open state detector 6b is provided above the landing door 1c.

  Moreover, the machine room 1b is provided, for example in the upper part of the hoistway 1a, In it, the hoisting machine 7, the brakes 8 and 8 ', the speed detector 9, the elevator control apparatus 10, and another added another A door opening travel control device 11 is accommodated as a control device. This door opening travel control device 11 has a configuration including a speed detector failure detection device 104. Details of each of these components are as follows.

<Riding basket 2, counterweight 3, and main rope 4>
The riding basket 2 and the counterweight 3 are fixed to both ends of the main rope 4 and are lifted upside down in the hoistway 1a. The main rope 4 has one end fixed to the riding cage 2, the other end fixed to the counterweight 3, and the cage 2 and the counterweight 3 are suspended at both ends in the hoistway 1 a. Of these, the ride cage 2 is provided with a door (not shown) as a cage door on the surface facing the inner wall of the hoistway 1a.

<Door opening permission zone detector 5>
The door opening permission zone detector 5 is also a specific distance sensing device that constitutes the door opening travel protection device 100. The door opening permission zone detector 5 receives a signal for determining whether or not the position of the car 2 in the hoistway 1a is in a door opening permission zone where the door provided in the car 2 can be opened. Output. Such a door opening permission zone detector 5 is comprised by the light-shielding plate 5a and the optical sensor 5b, for example.

  Among these, a plurality of light shielding plates 5a are provided at predetermined intervals along the extending direction of the hoistway 1a. Each light shielding plate 5a is provided so as to protrude from the inner wall of the hoistway 1a toward the inner side of the hoistway 1a along the extending direction of the hoistway 1a. Each light shielding plate 5a has a predetermined length in the extending direction of the hoistway 1a.

  The optical sensor 5b is provided so as to protrude from the outer peripheral wall of the ride basket 2 toward the inner wall of the hoistway 1a. This optical sensor 5b is composed of a light emitting element and a light receiving element which are arranged to face each other. The optical sensor 5b is configured to sandwich the height position of the center of the light shielding plate 5a between the light emitting element and the light receiving element in a state where the riding basket 2 has arrived at the landing floor. Such an optical sensor 5b outputs, for example, an on signal in a state where the light shielding plate 5a is sandwiched, and outputs an off signal in other states. As a result, the light sensor 5b sequentially holds the light shielding plates 5a between the light emitting element and the light receiving element as the riding basket 2 moves up and down in the hoistway 1a, and sequentially turns on and off signals accordingly. Output. Note that the output timing of the ON signal and the OFF signal of the optical sensor 5b may be reversed.

  Details of the signal output from the optical sensor 5b of the door opening permission zone detector 5 having such a configuration will be described in detail later. In addition, the door opening permission zone detector 5 comprised with the light-shielding plate 5a and the optical sensor 5b is also a specific distance sensing apparatus which comprises the door opening travel protection apparatus 100. FIG. This door opening permission zone detector 5 may be duplicated by providing two sets in parallel with respect to one car 2. Moreover, the signal output from the optical sensor 5b of the door opening permission zone detector 5 is branched and input to the elevator control device 10 and the door opening travel control device 11.

<Cage door open state detector 6a and landing door open state detector 6b>
The car door open state detector 6 a and the landing door open state detector 6 b constitute the door open travel protection device 100. Among these, the cage door open state detector 6a is a switch for detecting a state in which the cage door, which is a door provided in the ride cage 2, is opened. The landing door open state detector 6b is a switch for detecting a state in which the landing door 1c, which is a door provided on the wall of the hoistway 1a, is opened. The signals output from the cage door open state detector 6a and the landing door open state detector 6b are branched and input to the elevator control device 10 and the door open travel control device 11.

<Hoisting machine 7>
The hoisting machine 7 is fixedly provided inside the machine room 1 b and includes a sheave 71 and a motor 72 that rotates the sheave 71. The sheave 71 is a sheave on which an intermediate portion of the main rope 4 extending from the hoistway 1a is wound. The motor 72 moves the intermediate portion of the main rope 4 wound around the sheave 71 by rotating the sheave 71 in a predetermined speed and in a predetermined direction, and the riding basket 2 and the counterweight that are suspended on the main rope 4. 3 is raised and lowered. Further, in the vicinity of the sheave 71, a warping wheel 73 is disposed with a predetermined interval with respect to the sheave 71, and an intermediate portion of the main rope 4 on the counterweight 3 side is wound around the warping wheel 73.

<Brake 8, 8 '>
The brakes 8 and 8 ′ are for stopping the rotation of the sheave 71. These brakes 8 and 8 ′ are a brake 8 that is controlled by the elevator control device 10 and a brake 8 ′ that is controlled by the door-open travel control device 11. Among these, the brake 8 ′ controlled by the door-open travel control device 11 constitutes the door-open travel protection device 100. Both of these brakes 8 and 8 ′ may be disc brakes, and the brake 8 ′ controlled by the door-open travel control device 11 may be a rope brake. Each of these brakes 8 and 8 'has a brake power source.

<Speed detector 9>
The speed detector 9 is for detecting the traveling speed of the car 2. The speed detector 9 is a rotary encoder attached to the drive shaft of the motor 72, for example, and is arranged so as to sandwich a slit disk fixed to the drive shaft and a slit pattern provided on the slit disk. It consists of a light sensor.

  Details of the signal output from the speed detector 9 will be described in detail later. The signal output from the speed detector 9 is branched and input to the elevator control device 10 and the door-open travel control device 11 constituting the door-open travel protection device 100.

<Elevator control device 10>
The elevator control device 10 drives the hoisting machine 7 for raising and lowering the riding basket 2, driving the brake 8 for stopping the raising and lowering operation of the riding basket 2, and further, a cage that is a door provided in the riding basket 2. This is for controlling the operation of the elevator apparatus 1 such as opening and closing the door. Such an elevator control device 10 includes signals from command units such as a call button (not shown) provided on the outside of the door of the hoistway 1a, an operation button (not shown) provided inside the passenger car 2, and the like. Performs operation control of the elevator apparatus 1 based on a signal from the speed detector 9.

<Door open travel control device 11>
The door-open travel control device 11 is a control device that constitutes the door-open travel protection device 100, and detects the door-open travel of the car 2 and shuts off the brake power to open the car 2. It is the control device for preventing. Here, the door-opening traveling of the passenger car 2 means that the car door that is a door provided in the passenger car 2 or the landing door 1c that is a door provided on the wall of the hoistway 1a is opened. This means that the car 2 travels outside the door opening permission zone.

  Such a door-open travel control device 11 is a control device different from the elevator control device 10 and includes a speed detector failure detection device 104.

  FIG. 2 is a functional block diagram of the door-opening travel protection device 100 including the speed detector failure detection device 104 according to the embodiment. As shown in this figure, the door-opening travel protection device 100 comprising a plurality of components described above includes a door-opening travel control device 11, and a speed detector failure detection device 104 is provided in the door-opening travel control device 11. It is the composition which was made.

  The door opening traveling control device 11 is a door opening permission zone detection signal S1 from the door opening permission zone detector 5 which is also a specific distance sensing device, a door opening state detector 6a and a door opening state from the landing door opening state detector 6b. The state detection signal S2 and the speed signal S3 from the speed detector 9 are input. Each of these signals is configured to be branched from the input to the elevator control device 10 and input to the door opening travel control device 11. The car door open state detector 6a and the landing door open state detector 6b output individual door open state detection signals S2. Here, for simplicity of explanation, one door open state detection signal S2 is used. Will be described.

  The door-open travel control device 11 includes a door-open travel detection device 101, a brake power shut-off device 102, and a speed monitoring device 103 in addition to the speed detector failure detection device 104. These configurations are as follows.

[Open door detection device 101]
Based on the door opening permission zone detection signal S1 and the door opening state detection signal S2, the door opening travel detection device 101 opens the passenger car 2 in a state where at least one of the door of the passenger car 2 or the door of the landing is opened. Is detected, and the brake power cutoff device 102 is instructed to shut off the brake power.

[Brake power cutoff device 102]
The brake power cut-off device 102 performs control to cut off the brake power of the brake 8 ′.

[Speed monitoring device 103]
Based on the door opening permission zone detection signal S1, the door opening state detection signal S2, and the speed signal S3, the speed monitoring device 103 is in a state in which at least one of the door of the passenger car 2 or the door of the landing floor is open. When it is determined that the raising / lowering speed of the riding basket 2 exceeds a predetermined speed when the riding basket 2 is in the door opening permission zone, the brake power shut-off device 102 is instructed to shut off the brake power. Such a speed monitoring device 103 cannot correctly determine that the ascending / descending speed of the car 2 has exceeded a predetermined speed when the speed detector 9 fails. For this reason, the door-opening traveling control device 11 needs a speed detector failure detection device 104 described below.

[Fault detector for speed detector 104]
The speed detector failure detection device 104 detects a failure of the speed detector 9 based on the door opening permission zone detection signal S1 and the speed signal S3. It instructs the power shut-off device 102 to shut off the brake power. The detailed configuration of the speed detector failure detection device 104 will be described later.

  The door opening travel control device 11 as described above is a computer constituted by a CPU, a ROM, and a RAM, and the CPU executes a program recorded in the ROM or the RAM, whereby each of the above-described devices. Perform detection, monitoring, detection, and control.

  Next, the configuration of the speed detector failure detection device 104 that is characteristic of the elevator device 1 configured as described above will be described.

≪Speed detector failure detection device 104≫
The speed detector failure detection device 104 (hereinafter simply referred to as the failure detection device 104) is provided in the door-opening travel control device 11 of the door-opening travel protection device 100. The failure detection device 104 is configured to receive the door opening permission zone detection signal S1 obtained by the optical sensor 5b of the door opening permission zone detector 5 and the speed signal S3 obtained by the speed detector 9. Yes. The failure detection device 104 includes a speed signal detection unit 104a, an on-off inversion detection unit 104b, and a failure determination unit 104c.

  FIG. 3 is a diagram for explaining a signal used for failure detection of the speed detector according to the embodiment. FIG. 3A is a diagram when the speed signal S3 from the speed detector is normally output. On the other hand, FIG. 3B is a diagram when the speed detector is out of order and the speed signal S3 is out of phase, and a normal output is not obtained. Next, details of the speed signal detection unit 104a, the on-off inversion detection unit 104b, and the failure determination unit 104c constituting the failure detection device 104 will be described based on FIG. 3 and FIG.

<Speed signal detection unit 104a>
The speed signal detection unit 104a determines that the speed signal S3 is detected based on the input from the speed detector 9.

  Here, the speed detector 9 constituted by a rotary encoder outputs a pulse waveform signal that repeats a signal H having a high output and a signal Lo having a low output as the speed signal S3 in accordance with the rotation of the motor 72. For this reason, the speed signal detection unit 104a provides a threshold value between the high output signal H and the low output signal Lo for the output of the speed signal S3 input from the speed detector 9, and the speed signal S3 is When the threshold value is exceeded, it is determined that the speed signal S3 has been detected.

  In the speed monitoring apparatus 103 described above, the movement amount of the car 2 per rotation of the motor 72 is set to the motor rotation speed ω calculated from the time (pulse width) of one cycle of the pulse waveform in the speed signal S3. The vertical speed of the riding basket 2 is calculated by multiplying by the speed conversion ratio γ. FIG. 3 also shows the riding basket speed S calculated in this way.

<On-off inversion detection unit 104b>
The on-off inversion detection unit 104b is based on the input from the optical sensor 5b of the door opening permission zone detector 5, and the door opening permission zone detection signal S1 is reversed from on to off (that is, turned off), or is turned on from off It is detected that it is reversed (turned on).

  Here, the door opening permission zone detection signal S1 output from the optical sensor 5b of the door opening permission zone detector 5 as described above is turned on and off in accordance with the movement of the car 2. That is, the door opening permission zone detection signal S1 becomes turn-off inversion A when the elevator car 2 starts moving up and down from a state where it stops at the landing floor. Further, the door opening permission zone detection signal S1 repeats turn-on inversion B and turn-off inversion A in this order every time the car 2 passes the landing floor. Further, the door opening permission zone detection signal S1 becomes a turn-on inversion B when the car 2 arrives at the landing floor and stops the lifting operation. In FIG. 3, as an example, the door opening permission zone detection signal S <b> 1 when the ride basket 2 moves on the landing floors for the third floor is shown.

  The on-off inversion detection unit 104b detects that the door opening permission zone detection signal S1 input from the optical sensor 5b of the door opening permission zone detector 5 has been turned on inversion B or turn off inversion A.

<Failure determination unit 104c>
The failure determination unit 104c is connected to the speed signal detection unit 104a and the on-off inversion detection unit 104b. As shown in FIG. 3A, the failure determination unit 104c detects a speed signal detection unit when the on / off inversion detection unit 104b detects that the door opening permission zone detection signal S1 has been turned on / off. If it is determined at 104a that a speed signal has been detected, it is determined that the speed detector 9 is normal and has not failed.

  On the other hand, as shown in FIG. 3B, the failure determination unit 104c detects the speed signal when the on / off inversion detection unit 104b detects that the door opening permission zone detection signal S1 is inverted on / off. When it is not determined that the speed signal is detected in the detection unit 104a, it is determined that the speed detector 9 is out of order. When it is determined that the speed detector 9 is out of order, the brake power cutoff device 102 is instructed to shut off the brake power.

≪Speed detector failure detection method≫
FIG. 4 is a flowchart for explaining a speed detection failure detection method in the elevator apparatus according to the embodiment. The failure detection method shown in this flowchart is a failure detection method for the speed detector 9 implemented by the failure detection device 104 described with reference to FIGS. 2 and 3. It is a detection method. Hereinafter, the procedure of the failure detection method of the speed detector 9 will be described along the flowchart of FIG. 4 with reference to FIGS. 2 and 3.

[Step S101]
In step S101, the on-off inversion detection unit 104b determines whether or not the door opening permission zone detection signal S1 becomes the turn-off inversion A. Then, the determination is repeated until it is determined that the turn-off inversion A is established (YES), and when it is determined that the turn-off inversion A is established (YES), the process proceeds to step S102.

[Step S102]
In step S102, the speed signal detection unit 104a determines whether or not the speed signal S3 is detected. Here, the speed signal detection unit 104a determines whether or not the speed signal S3 has been detected when it is determined in step S101 that the turn-off inversion A has occurred (YES). If it is determined that the speed signal S3 has been detected (YES), the process proceeds to step S103a. On the other hand, if it is determined that the speed signal S3 is not detected (NO), the process proceeds to step S103.

[Step S103a]
In step S103a, the failure determination unit 104c determines that there is no failure in the speed detector 9, and ends the failure detection process.

[Step S103]
On the other hand, in step S103, the on-off inversion detection unit 104b determines whether or not the door opening permission zone detection signal S1 becomes the turn-on inversion B. The determination is repeated until it is determined that the turn-on inversion B is established (YES), and when it is determined that the turn-on inversion B is established (YES), the process proceeds to step S104.

[Step S104]
In step S104, the speed signal detection unit 104a determines whether or not the speed signal S3 is detected. Here, the speed signal detection unit 104a determines whether or not the speed signal S3 is detected when it is determined in step S103 that the turn-on inversion B has occurred (YES). If it is determined that the speed signal S3 has been detected (YES), the process proceeds to step S103a. On the other hand, if it is determined that the speed signal S3 is not detected (NO), the process proceeds to step S105.

[Step S105]
On the other hand, in step S105, the failure determination unit 104c determines that the speed detector 9 has failed, instructs the brake power cutoff device 102 to shut off the brake power, and ends the failure detection process.

<< Effects of Embodiment >>
According to the embodiment described above, the failure detection device 104 of the speed detector provided in the door opening travel control device 11 different from the elevator control device 10 detects the door opening permission zone from the door opening permission zone detector 5. A failure of the speed detector 9 is detected based on the signal S1 and the speed signal S3 from the speed detector 9. For this reason, without relying on the signal from the elevator control apparatus 10 which is the main control apparatus of the elevator apparatus 1, that is, without using the signal from the elevator control apparatus 10, only by the signal input directly to the door opening travel control apparatus 11. Thus, it becomes possible to perform failure detection of the speed detector 9.

  In addition, the failure detection device 104 detects a failure of the speed detector 9 with ON / OFF inversion of the door opening permission zone detection signal S1 and whether or not the speed signal S1 is detected, so that the failure detection with high accuracy is possible. It is.

  Further, as described in the failure detection method using FIG. 4, when it is detected that the door opening permission zone detection signal S1 is turned on and off, the case where the speed signal S3 is not detected is detected twice in succession. In this case, it is possible to improve the accuracy of failure determination by determining that the speed detector has failed.

  From the above, it is possible to simplify the work procedure when adding the door opening travel control device 11 to the elevator control device 10 by an add-on method, and additionally to the elevator device 1 the door opening travel protection device 100. It becomes possible to implement | achieve the structure which provides this at low cost.

  In addition, this invention is not limited to above-described embodiment and modification, Furthermore, various modifications are included. For example, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment. Moreover, it is possible to add / delete / replace other configurations for a part of the configurations of the embodiments.

DESCRIPTION OF SYMBOLS 1 ... Elevator apparatus 1a ... Hoistway 2 ... Riding basket 5 ... Door opening permission zone detector 5a ... Light-shielding plate 5b ... Light sensor 9 ... Speed detector 10 ... Elevator control apparatus 11 ... Door opening traveling control apparatus 100 ... Door opening traveling Protective device 104 ... Speed detector failure detection device 104b ... On-off inversion detection unit 104c ... Failure determination unit S1 ... Door opening permission zone detection signal (signal from door opening permission zone detector)
S3: Speed signal (signal from speed detector)

Claims (11)

An elevator control device for controlling the raising and lowering of the car,
A speed detector for detecting the lifting speed of the car;
A door opening permission zone detector for detecting a door opening permission zone which is a door opening / closing area of the riding basket;
A door-opening travel protection device for preventing door-opening travel of the riding basket;
Separately from the elevator control device, the door opening travel control device provided in the door opening travel protection device,
In the elevator apparatus having a failure detection device of the speed detector provided in the door opening travel control device,
The failure detection device is:
The elevator apparatus which detects the case where the signal from the said speed detector is not detected as a failure of the said speed detector at the time of detecting the raising / lowering operation | movement of the said car based on the signal from the said door opening permission zone detector. The door opening permission zone detector is
A light shielding plate provided on the inner wall of the hoistway corresponding to each landing floor in the hoistway of the ride car;
A light sensor provided on the outside of the car to detect the light shielding plate,
The failure detection device is:
An on-off inversion detection unit for detecting that the signal from the optical sensor is inverted between on and off;
If the signal from the speed detector is not detected when the on-off inversion detection unit detects that the signal from the optical sensor is inverted between on and off, the speed detector fails. The elevator apparatus according to claim 1, further comprising a failure determination unit that determines that the failure has occurred. The failure determination unit continuously detects a case where the signal from the speed detector is not detected when the on-off inversion detection unit detects that the signal from the optical sensor is inverted between on and off. The elevator apparatus according to claim 2, wherein the speed detector determines that the speed detector has failed when detected twice. The elevator apparatus according to claim 1, wherein the speed detector and the door opening permission zone detector are branched and connected to the elevator control device and the door opening traveling control device. It detects a failure of a speed detector for detecting the raising / lowering speed of the car in the elevator device, and is a speed detector provided in the elevator device separately from the elevator controller for controlling the raising / lowering of the car. In the failure detection device,
A signal from the speed detector at the time when the raising / lowering movement of the riding basket is detected based on a signal from a door opening permission zone detector for detecting a door opening permission zone which is a door opening / closing area of the riding basket. A speed detector failure detection device that detects a failure of the speed detector as a failure of the speed detector. A light shielding plate provided on the inner wall of the hoistway corresponding to each landing floor in the hoistway of the ride basket, and an optical sensor provided so as to protrude outside the ride car to detect the light shielding plate. An on-off inversion detection unit for detecting that the signal from the door opening permission zone detector has inverted between on and off;
If the signal from the speed detector is not detected when the on-off inversion detection unit detects that the signal from the optical sensor is inverted between on and off, the speed detector fails. The speed detector failure detection device according to claim 5, further comprising a failure determination unit that determines that the failure has occurred. The failure determination unit continuously detects a case where the signal from the speed detector is not detected when the on-off inversion detection unit detects that the signal from the optical sensor is inverted between on and off. The speed detector failure detection device according to claim 6, wherein the speed detector is determined to have failed when detected twice. The speed detector failure detection device according to claim 5, wherein signals from the speed detector and the door opening permission zone detector are directly input. In the speed detector failure detection method for detecting a speed detector failure for detecting the raising / lowering speed of the car in the elevator device,
Based on a signal from a door opening permission zone detector for detecting a door opening permission zone, which is a door opening / closing area of the riding car, the speed detection device failure detection device provided in the elevator apparatus detects the state of the riding car. A speed detector failure detection method that detects a case where a signal from the speed detector is not detected at the time of detecting a lifting operation as a failure of the speed detector. A light shielding plate provided on the inner wall of the hoistway corresponding to each landing floor in the hoistway of the ride basket, and an optical sensor provided so as to protrude outside the ride car to detect the light shielding plate. The on-off inversion detection unit of the failure detection device detects that the signal from the door opening permission zone detector has an inversion between on and off,
If the signal from the speed detector is not detected at the time when the on-off inversion detection unit detects that the signal from the optical sensor is inverted between on and off, the failure detection device fails. The speed detector failure detection method according to claim 9, wherein the determination unit determines that the speed detector has failed. The failure determination unit continuously detects a case where the signal from the speed detector is not detected when the on-off inversion detection unit detects that the signal from the optical sensor is inverted between on and off. The speed detector failure detection method according to claim 10, wherein the speed detector is determined to have failed when detected twice.

Images