JP6272199B2 - Elevator apparatus and electronic safety system inspection method for elevator apparatus - Google Patents

Description

  The present invention relates to an elevator apparatus and an inspection method for an electronic safety system of an elevator apparatus.

  Elevator equipment generally monitors the traveling speed (moving speed / elevating speed) and traveling position of a lifting body, which is generally called a car, and makes the lifting body emergency when the lifting body falls into a predetermined abnormal state. A safety device to stop is provided. In recent years, as a safety device, the traveling position and traveling speed of the lifting body are electrically detected (measured) using a speed sensor, and a command signal for shifting the elevator device to a safe state based on the detection result is provided. The introduction of electronic safety systems using safety controllers that output is progressing.

  When an electronic safety system is introduced, it is necessary to periodically check whether each functional unit of the safety controller operates normally. A technique described in Patent Document 1 is known as a technique for performing this periodic inspection.

  Patent Document 1 states that “the electronic overspeed detection device monitors whether or not the car speed reaches an overspeed monitoring pattern. The overspeed monitoring pattern is at least relative to the position in the car deceleration section of the hoistway terminal. The operation mode of the electronic overspeed detection device includes an inspection mode for inspecting the electronic overspeed detection device itself.In the inspection mode, overspeed monitoring is performed. The pattern can be changed. "

International Publication No. 2006/103769

  In the prior art described in Patent Document 1, an overspeed monitoring pattern (overspeed detection level) that is a specified value (overspeed detection level) set corresponding to an abnormal speed is forcibly changed only in a certain section. To check. As described above, the prior art described in Patent Document 1 adopts a configuration in which the overspeed monitoring pattern itself is changed in spite of the overspeed monitoring pattern being used as a criterion for determination. It is not possible to accurately determine whether or not the pattern has been reached.

  When checking the operating speed of the overspeed switch function for monitoring whether or not the traveling speed of the lifting body has reached an abnormal speed, the present invention checks without changing the specified value set corresponding to the abnormal speed. It is an object of the present invention to provide an elevator apparatus and an inspection method for its electronic safety system.

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 problems.
A speed detector for detecting the traveling speed of the elevator,
A control unit having an overspeed switch function to stop driving of the lifting body when the speed signal detected by the speed detection unit reaches a specified value set corresponding to the abnormal speed of the lifting body;
An elevator device comprising:
Overspeed switch function, the lifting body have a check mode for checking the operating speed of the overspeed switch function while traveling in the following run line speed rated speed,
The overspeed switch function generates a simulated speed signal waveform by multiplying the waveform of the speed signal detected by the speed detector in the inspection mode by a conversion constant, and the speed signal detected by the speed detector using the simulated speed signal waveform Monitor whether the value reaches the specified value,
The conversion constant is characterized in that the simulated speed signal waveform is set to a value that allows the elevator body to reach a specified value even when the elevator travels at a travel speed equal to or less than the rated speed of the elevator apparatus .

According to the present invention, since the inspection can be performed without changing the specified value set corresponding to the abnormal speed, the operation speed of the overspeed switch function can be more accurately inspected.
Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is an example of a side sectional view showing a schematic configuration of configuration example 1 of an elevator apparatus to which the present invention is applied. It is an example of the sectional side view which shows schematic structure of the structural example 2 of the elevator apparatus with which this invention is applied. It is an example of the sectional side view which shows schematic structure of the structural example 3 of the elevator apparatus with which this invention is applied. It is an example of the sectional side view which shows schematic structure of the structural example 4 of the elevator apparatus with which this invention is applied. It is an example of a block diagram which shows the outline of the 1st system configuration example of the control system of the elevator apparatus with which this invention is applied. It is an example of the block diagram which shows the outline of the 2nd system structural example of the control system of the elevator apparatus with which this invention is applied. 3 is an example of a flowchart illustrating an example of a processing procedure of an inspection method according to the first embodiment. It is an example of the figure which shows the waveform change with respect to time of the operating speed regulation value, speed signal waveform, and simulation speed signal waveform in the inspection method which concerns on Example 1. FIG. 10 is an example of a flowchart illustrating an example of a processing procedure of an inspection method according to the second embodiment. It is an example of the figure which shows the waveform change with respect to the time of the operating speed regulation value, speed signal waveform, delay speed signal waveform, and simulation speed signal waveform in the inspection method which concerns on Example 2. FIG. 12 is an example of a flowchart illustrating an example of a processing procedure of an inspection method according to a third embodiment. It is an example of the figure which shows the waveform change with respect to time of the operating speed regulation value, speed signal waveform, delay speed signal waveform, and simulation speed signal waveform in the inspection method which concerns on Example 3. FIG.

  Hereinafter, modes for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the drawings. The present invention is not limited to the embodiment. In the present specification and drawings, the same components or components having substantially the same function are denoted by the same reference numerals, and redundant description is omitted.

<Elevator apparatus according to an embodiment of the present invention>
The elevator apparatus according to the embodiment of the present invention introduces an electronic safety system using an electronic safety controller 200A (see FIG. 5) or an electronic safety controller 200B (see FIG. 6) described later. In addition, an elevator traveling speed, more specifically, a speed detecting unit that detects a traveling speed (moving speed / lifting speed) of a lifting body called a car is provided. The speed detection unit uses a speed sensor that electrically measures the traveling speed to detect the traveling speed of the lifting body.

  The elevator apparatus according to the present embodiment is a rotary sensor that is attached to, for example, a rotating body that rotates in conjunction with the traveling of the lifting body as a speed sensor, and converts a mechanical displacement amount in the rotation direction of the rotating body into a digital amount. A configuration using an encoder is employed. The rotating body to which the rotary encoder is attached varies depending on the configuration (type) of the elevator apparatus. There are various types of elevator apparatuses.

  Before describing the elevator apparatus according to the present embodiment, a specific configuration example of the elevator apparatus to which the present invention is applied will be described below.

[Configuration example 1]
FIG. 1 is an example of a side sectional view showing a schematic configuration of a configuration example 1 of an elevator apparatus to which the present invention is applied.

  In general, an elevator apparatus connects a lifting body (cage) 103 and a counterweight 104 to a hoistway 102 provided in a building 100 by a main rope (main rope) 105, and the lifting body 103 is not shown. It is configured to be able to move up and down along the guide rail. A machine room 101 is provided above the hoistway 102.

  In the machine room 101, a hoisting machine 106 around which a main rope 105 is wound, a control panel 107 for controlling the hoisting machine 106, a speed governor 110, and the like are arranged. The speed governor 110 includes an endless speed regulating rope 111 that is stretched over the entire travel stroke (lifting stroke) of the lifting body 103 in the hoistway 102. The governing rope 111 is wound around a sheave 112 installed in the machine room 101 and a sheave 113 of a governor weight installed at the lower part of the hoistway 102. The sheave 112 is rotatably attached to the building 100.

  The lifting body 103 is provided with an emergency stop device 108 that holds a guide rail (not shown) with a wedge in an emergency and stops the traveling of the lifting body 103, and an operating lever 109 that drives the emergency stop device 108. The operation lever 109 is pivotally supported on the lifting body 103 side and is provided in contact with the speed control rope 111.

  The sheave 112 of the governor 110 is a rotating body that rotates in conjunction with the traveling of the elevating body 103. A rotary encoder 120 that is an example of a speed sensor that electrically measures the traveling speed of the elevating body 103 is attached to the sheave 112. The rotary encoder 120 converts a mechanical displacement amount in the rotational direction of the sheave 112 into a digital amount. The output signal of the rotary encoder 120 is supplied to an electronic safety controller 200A (see FIG. 5), which will be described later, or an electronic safety controller 200B (see FIG. 6), which is a control unit provided in the control panel 107.

  In the elevator apparatus according to Configuration Example 1, the rotary encoder 120 is attached to the sheave 112. However, the present invention is not limited to this. Similar to the sheave 112, the rotary encoder 120 may be attached to the sheave 113 of the governor weight that is a rotating body that rotates in conjunction with the traveling of the elevating body 103. However, attaching the rotary encoder 120 to the sheave 112 can shorten the wiring for transmitting the signal of the rotary encoder 120 to the control panel 107 rather than attaching the rotary encoder 120 to the sheave 113, which is advantageous in suppressing the influence of noise on the wiring. It is.

[Configuration example 2]
FIG. 2 is an example of a side sectional view showing a schematic configuration of configuration example 2 of an elevator apparatus to which the present invention is applied.

  As is clear from FIG. 2, the elevator apparatus according to the configuration example 2 does not include the machine room 101 in the elevator apparatus according to the configuration example 1, and the hoistway 102 includes the hoisting machine 106, the control panel 107, and the speed governor 110. It has a configuration arranged inside. Specifically, a so-called lower arrangement structure in which the hoisting machine 106 and the control panel 107 are arranged in the lower part of the hoistway 102 is employed.

  A sheave 131 and a sheave 132 are rotatably attached to the elevating body 103 and the counterweight 104. In addition, two sheaves 133 and 134 are provided in the upper part of the hoistway 102. The sheaves 133 and 134 are rotatably attached to the building 100. The main rope 105 is wound around a sheave 131, a sheave 133, a hoisting machine 106, a sheave 134 and a sheave 132, and both ends are fixed to the upper part of the hoistway 102.

  As described above, the elevator apparatus according to Configuration Example 2 employs a lower arrangement structure for the hoisting machine 106 and the control panel 107. In the case of adopting this lower arrangement structure, it is desirable to attach the rotary encoder 120 for measuring the traveling speed of the elevating body 103 to the governor weight 113. Thereby, since the wiring which transmits the signal of the rotary encoder 120 to the control panel 107 can be made shorter than the case where the rotary encoder 120 is attached to the sheave 112, it is advantageous in suppressing the influence of noise on the wiring. However, the rotary encoder 120 may be attached to the sheave 112.

[Configuration example 3]
FIG. 3 is an example of a side sectional view showing a schematic configuration of configuration example 3 of an elevator apparatus to which the present invention is applied.

  In the elevator apparatus according to Configuration Example 1 and the elevator apparatus according to Configuration Example 2, the rotary encoder 120 that measures the traveling speed of the lifting body 103 is a sheave 112 that is a rotating body that rotates in conjunction with the traveling of the lifting body 103. The structure attached to the sheave 113 of the governor weight is adopted.

  On the other hand, the elevator apparatus according to Configuration Example 3 employs a configuration in which the rotary encoder 120 is attached to the lifting body 103. Further, the roller 135 of the rotary encoder 120 is pressed against the guide rail 136. The output signal (encoder signal) of the rotary encoder 120 is transmitted to the control panel 107 by the tail code 137.

  In the elevator apparatus according to Configuration Example 3 having the above-described configuration, the roller 135 rotates as the elevating body 103 travels (moves / elevates), and the rotary encoder 120 moves in the travel direction (movement direction) of the elevating body 103 accordingly. The mechanical displacement is converted into a digital quantity. In this case, the attachment target of the rotary encoder 120 is not a rotating body that rotates in conjunction with the traveling of the lifting body 103 but a moving body that moves in conjunction with the traveling of the lifting body 103 (that is, the lifting body 103). Become.

[Configuration Example 4]
FIG. 4 is an example of a side sectional view showing a schematic configuration of a configuration example 4 of an elevator apparatus to which the present invention is applied.

  As shown in FIG. 4, in the elevator apparatus according to Configuration Example 4, in addition to the configuration of the elevator apparatus according to Configuration Example 1, a sheave 141 is disposed in the machine room 101, and a sheave 142 is disposed below the hoistway 102. The endless rope 143 is wound around these sheaves 141 and 142. That is, the endless rope 143 is stretched over the entire area in the hoistway 102. The endless rope 143 is connected to a lever 144 supported by the elevating body 103.

  In the elevator apparatus according to Configuration Example 4 having the above-described configuration, the endless rope 143 rotates in conjunction with the travel of the hoistway 102, and the sheaves 141 and 142 rotate accordingly. That is, the sheaves 141 and 142 are rotating bodies that rotate in conjunction with the traveling of the lifting body 103. In the elevator apparatus according to Configuration Example 4, the rotary encoder 120 is attached to the sheave 141.

  In addition, in the elevator apparatus which concerns on this structural example 4, although it was set as the structure which attaches the rotary encoder 120 to the sheave 141, it is not restricted to this. Similar to the sheave 141, the rotary encoder 120 may be attached to the sheave 142 that is a rotating body that rotates in conjunction with the traveling of the elevating body 103. However, attaching the rotary encoder 120 to the sheave 141 can shorten the wiring for transmitting the signal of the rotary encoder 120 to the control panel 107 as compared to attaching the rotary encoder 120 to the sheave 142, which is advantageous in suppressing the influence of noise and the like on the wiring. It is.

<System configuration of control system>
Next, two examples of the system configuration of the control system of the elevator apparatus to which the present invention is applied will be described.

[First system configuration example]
FIG. 5 is an example of a block diagram showing an outline of a first system configuration example of a control system of an elevator apparatus to which the present invention is applied. As shown in FIG. 5, the present control system is configured around an electronic safety controller 200 </ b> A that is a control unit responsible for overall control of the elevator apparatus to which the present invention is applied. The electronic safety controller 200A receives an output signal (encoder signal) of the rotary encoder 120, a position detection signal of the position detection unit 150, and a detection signal of the switch unit 160.

  The rotary encoder 120 is an example of a speed sensor that electrically measures the traveling speed of the elevating body 103, and outputs an encoder signal including information on the traveling speed and the traveling position of the elevating body 103. The position detection unit 150 is a sensor that detects an absolute travel position of the elevating body 103. For example, the position detection unit 150 is attached to the lifting plate 103 side with a shielding plate installed corresponding to each floor on the hoistway 102 side, and the position of the lifting body 103 is determined by blocking the optical path by the shielding plate. It consists of a combination with an optical sensor to detect. The switch unit 160 includes various switches provided at predetermined locations in the elevator apparatus.

  In FIG. 5, regarding the electronic safety controller 200A, each function of the electronic safety controller 200A is illustrated as a block diagram and illustrated as a functional block diagram. The electronic safety controller 200A includes a position information calculation unit 201, a speed information calculation unit 202, various switch inspection function units 204, a limit switch function unit 205, and a terminal floor forced deceleration function unit 206. The electronic safety controller 200A further includes an overspeed switch function unit 207, a door floor travel protection function unit 208, a rationality detection function unit 209, and a stop output function unit 210.

  The position information calculation unit 201 calculates the position information of the lifting body 103 based on the encoder signal of the rotary encoder 120 and the position detection signal of the position detection unit 150, and outputs the position information as the position signal of the lifting body 103. This position signal is supplied to the limit switch function unit 205, the terminal floor forced deceleration function unit 206, and the door floor travel protection function unit 208.

  The speed information calculation unit 202 calculates speed information of the lifting body 103 based on the encoder signal of the rotary encoder 120 and outputs it as a speed signal of the lifting body 103. This speed signal is supplied to the terminal floor forced deceleration function unit 206 and the overspeed switch function unit 207. Here, the speed information calculation unit 202 and the rotary encoder 120 constitute a speed detection unit that detects an elevator traveling speed, more specifically, a traveling speed (moving speed / lifting speed) of the lifting body 103.

  The various switch inspection function unit 204 detects whether or not these switches are functioning normally, based on information from various switches provided at predetermined locations in the elevator apparatus. Then, when the various switches are functioning normally, the various switch inspection function units 204 send the detection signals of these switches to the limit switch function unit 205, the terminal floor forced deceleration function unit 206, the overspeed switch function unit 207, and It supplies to the floor driving protection function part 208.

  The limit switch function unit 205 monitors the traveling position of the lifting body 103 based on the position signal supplied from the position information calculation unit 201 and the detection signals of the various switches supplied from the various switch inspection function unit 204. The limit switch function unit 205 moves up and down before the top or bottom of the lifting body 103 collides with the top or bottom of the hoistway 102 when the lifting body 103 passes over the terminal floor (top floor / bottom floor). A command signal for stopping the traveling of the body 103 is output.

  The terminal floor forced deceleration function unit 206 is based on the position signal supplied from the position information calculation unit 201, the speed signal supplied from the speed information calculation unit 202, and the detection signals of various switches supplied from the various switch inspection function unit 204. Thus, deceleration control is performed on the moving elevator 103. Specifically, the terminal floor forced deceleration function unit 206 outputs a command signal for forcibly decelerating the traveling speed of the elevator body 103 when the elevator body 103 approaches the terminal floor.

  The overspeed switch function unit 207 monitors the speed signal supplied from the speed information calculation unit 202 and the detection signals of various switches supplied from the various switch inspection function unit 204. When the speed signal reaches a specified value (threshold value) set corresponding to the abnormal speed of the lifting body 103, that is, when the traveling speed of the lifting body 103 reaches the abnormal speed, the overspeed switch function unit 207 A command signal for stopping the driving of the lifting / lowering body 103 is output.

  Based on the position signal supplied from the position information calculation unit 201 and the detection signals of the various switches supplied from the various switch inspection function units 204, the door floor traveling protection function unit 208 can When the movement is detected, a command signal for stopping the traveling of the elevating body 103 is output. The rationality detection function unit 209 performs processing of each function unit based on output signals of the limit switch function unit 205, the terminal floor forced deceleration function unit 206, the overspeed switch function unit 207, and the door floor travel protection function unit 208. Check the rationality for any abnormalities.

  The stop output function unit 210 includes output signals from the limit switch function unit 205, the terminal floor forced deceleration function unit 206, the overspeed switch function unit 207, and the door floor travel protection function unit 208, and the output from the rationality detection function unit 209. Input signal. The stop output function unit 210 outputs a stop signal for stopping the operation of the elevator device to the control panel 107 when it is determined that the elevator device is in an abnormal state based on these output signals.

  For example, when the overspeed switch function unit 207 detects that the traveling speed of the elevating body 103 has reached an abnormal speed and outputs a command signal for stopping the driving of the elevating body 103, the stop output function unit 210 In response to this command signal, a stop signal is output to the control panel 107. In response to this stop signal, the control panel 107 performs control to stop driving of the lifting body 103 by shutting off the power supply of the driving device (winding machine 106) and the braking device of the lifting body 103.

  Each of the functional units 201, 202, 204 to 210 of the electronic safety controller 200A described above can be realized by software by interpreting and executing a program that realizes each function by the processor. At this time, information such as programs, tables, and files for realizing each function is recorded on a recording device such as a memory, a hard disk, and an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, and a DVD. be able to. Moreover, about each said function parts 201-210 etc., those one part or all part can also be implement | achieved by hardware, for example by designing with an integrated circuit.

  As described above, the elevator apparatus according to the present embodiment includes the speed detection unit that detects the elevator traveling speed, more specifically, the traveling speed of the elevating body 103. This speed detection unit calculates the speed information of the lifting body 103 based on the rotary encoder 120 that electrically measures the traveling speed of the lifting body 103 and the encoder signal of the rotary encoder 120, and outputs the speed information as a speed signal. Part 202.

  In addition, the elevator apparatus according to the present embodiment includes an overspeed switch function unit 207 as one of the functions of the electronic safety controller 200A that is a control unit. When the speed signal supplied from the speed information calculation unit 202 reaches a specified value (threshold value) set corresponding to the abnormal speed of the lifting body 103, that is, the overspeed switch function unit 207, When the speed reaches an abnormal speed, a command signal for stopping the driving of the elevating body 103 is output. In response to this command signal, the control panel 107 stops driving of the lifting body 103 by shutting off the power supply of the driving device and the braking device of the lifting body 103.

  By the way, for example, when excessive vibration is generated by the passenger in the lifting body 103, the frequency component resulting from the vibration is included (superimposed) in the speed signal of the lifting body 103 output from the speed information calculation unit 202. It will be. When the speed signal reaches a specified value due to the frequency component caused by excessive vibration, the overspeed switch function unit 207 operates even though the elevator apparatus is not abnormal, and the elevator apparatus is unnecessarily turned off. There is a possibility of stopping (ie, stopping the traveling of the elevating body 103).

[Second system configuration example]
A second system configuration example described below was made to avoid unnecessary stoppage of the elevator apparatus due to excessive vibration by passengers. FIG. 6 is an example of a block diagram showing an outline of a second system configuration example of the control system of the elevator apparatus to which the present invention is applied. In the second system configuration example, the configuration of the electronic safety controller 200B is different from the configuration of the electronic safety controller 200A in the first system configuration example.

  The electronic safety controller 200B includes a position information calculation unit 201, a speed information calculation unit 202, a low-pass filter processing unit 203, various switch inspection function units 204, a limit switch function unit 205, and a terminal floor forced deceleration function unit 206. The electronic safety controller 200B further includes an overspeed switch function unit 207, a door floor travel protection function unit 208, a rationality detection function unit 209, and a stop output function unit 210. That is, the electronic safety controller 200B is different from the electronic safety controller 200A of the first system configuration example in that it includes a low-pass filter processing unit 203.

  Each functional unit 201-210 of the electronic safety controller 200B can be realized by software by interpreting and executing a program that realizes each function by the processor, like the electronic safety controller 200A. At this time, information such as programs, tables, and files for realizing each function can be recorded in a recording device such as a memory, a hard disk, and an SSD, or a recording medium such as an IC card, an SD card, and a DVD. Moreover, about each said function parts 201-210 etc., those one part or all part can also be implement | achieved by hardware, for example by designing with an integrated circuit.

  The electronic safety controller 200B of the second system configuration example includes, for example, a low-pass filter processing unit 203 as one of its functions in order to avoid unnecessary stoppage of the elevator apparatus due to excessive vibration by passengers. ing. The low-pass filter processing unit 203 is also a low-pass filter that blocks a frequency component caused by excessive vibration included in the speed signal of the lifting body 103. The low-pass filter processing unit 203 performs a filtering process for blocking the frequency component caused by excessive vibration on the speed signal of the lifting body 103, thereby eliminating unnecessary elevator equipment caused by excessive vibration by the passenger. Stops can be avoided.

  Here, it can be said that when excessive vibration is applied by the passenger, the lifting body 103 swings at the natural frequency of the lifting body 103 including the rope system such as the main rope 105. Therefore, it is important that the cutoff characteristic of the low-pass filter (low-pass filter processing unit 203) includes the natural frequency of the lifting body 103 including the rope system. However, since the length of the main rope 105 (for example, the length to the hoisting machine 106 in the configuration example 1 in FIG. 1) varies depending on the position of the lifting body 103, the natural frequency of the lifting body 103 is changed. Also changes depending on the position of the lifting body 103.

  Therefore, it is desirable to set the minimum value of the natural frequency of the lifting body 103 applied to the cutoff characteristic of the low-pass filter as the cutoff characteristic of the low-pass filter. The minimum value of the natural frequency of the lifting / lowering body 103 is the natural frequency when the length of the main rope 105 is the longest, that is, the lifting / lowering body 103 is located at the bottom (for example, the lowest floor) of the travel stroke. This is the natural frequency of the time.

An example of a method for calculating the natural frequency fn of the lifting body 103 is shown in the following calculation formula (1).
fn = (1 / 2π) (k / m) ^1/2 (1)
Here, the weight of the rope system connected to the lifting body 103, the length, the rigidity, the number, the composite spring constant such as a thimble rod, m is a mass including the maximum loading capacity of the lifting body 103. Since the mass of the elevating body 103 varies depending on the number of passengers and the like, the mass includes the maximum load capacity.

  By setting the natural frequency fn of the lifting body 103 calculated using the above calculation formula (1) as the cut-off frequency of the frequency characteristic of the low-pass filter, the lifting body 103 is caused by excessive vibration by the passenger. It is possible to reliably block the frequency component included (ride) in the speed signal. Thereby, the stop of the unnecessary elevator apparatus resulting from the excessive vibration by a passenger can be avoided reliably.

  By the way, the electronic safety controller 200 </ b> B is configured to use the speed signal of the elevating body 103 output from the speed information calculation unit 202 even for functions other than the overspeed switch function. Specifically, the speed signal of the elevating body 103 is used not only by the overspeed switch function unit 207 but also by the terminal floor forced deceleration function unit 206. Here, it is important that the low-pass filter (low-pass filter processing unit 203) performs the filtering process only on the speed signal used in the overspeed switch function (overspeed switch function unit 207).

  Specifically, the filtering process is performed only on the speed signal input from the speed information calculation unit 202 to the overspeed switch function unit 207, and the speed output from the speed information calculation unit 202 for other function units. The signal waveform is used as it is. In the case of this example, the function units other than the overspeed switch function unit 207 using the speed signal are the terminal floor forced deceleration function unit 206. The terminal floor forced deceleration function unit 206 receives the position signal output from the position information calculation unit 201 and the speed signal output from the speed information calculation unit 202.

  Here, when the filtering process is performed on the speed signal input from the speed information calculation unit 202, a time delay occurs in the speed signal. As a result, a difference occurs in the input timing between the position signal and the speed signal that need to be input to the terminal floor forced deceleration function unit 206 at the same timing, which hinders the processing of the terminal floor forced deceleration function unit 206. Occurs. From this point of view, it is important that only the speed signal used in the overspeed switch function (overspeed switch function unit 207) is subjected to filtering processing, and the speed signal used for other functions is not subjected to filtering processing. It becomes.

<Inspection mode for overspeed switch function>
By the way, when an electronic safety system is introduced, whether or not each functional unit included in the electronic safety controllers 200A and 200B operates normally is periodically checked. Specifically, the operation speed of the overspeed switch function, which is one of the functions of the electronic safety controllers 200A and 200B, is periodically checked. When checking the operating speed of the overspeed switch function, when the rotary encoder 120 is attached to the sheave 112 of the speed governor 110 as in the configuration example 1 shown in FIG. The vehicle 112 is separated from the speed control rope 111 for inspection. However, such work is inefficient and requires a lot of time.

  Therefore, the elevator apparatus according to the present embodiment has an overspeed switch function (overspeed switch function unit 207) of the electronic safety controller 200A of the first system configuration example or the electronic safety controller 200B of the second system configuration example. , Have an operation speed check mode. By providing the overspeed switch function with an operation speed inspection mode, the inspection can be facilitated. This inspection mode processing method is an electronic safety system inspection method in the elevator apparatus according to the present embodiment, more specifically, an operation speed of an overspeed switch function which is one of the functions of the electronic safety controllers 200A and 200B. It becomes an inspection method to inspect.

  A specific embodiment of the inspection mode process (inspection method) for inspecting the operating speed of the overspeed switch function will be described below. In the case of the inspection method according to any of the embodiments, the lifting body 103 having a rated speed or less is not changed without changing the specified value corresponding to the abnormal speed (that is, the operating speed specified value of the overspeed switch function). The operation speed of the overspeed switch function is inspected at the traveling speed. Here, the “operation speed” is a speed until the overspeed switch function operates, that is, a speed until the traveling speed of the lifting body 103 reaches a specified operation speed.

  The processing of the inspection method according to each embodiment is applied to the overspeed switch function unit 207 (overspeed switch function). The overspeed switch function unit 207 multiplies the speed signal waveform supplied from the speed information calculation unit 202 directly or through the low pass filter processing unit 203 by a conversion constant (for example, an integer) to simulate the speed signal waveform. Is generated. Then, the overspeed switch function unit 207 determines whether or not the simulated speed signal waveform has reached a specified operating speed value corresponding to the abnormal speed.

  The conversion constant for generating the simulated speed signal waveform may be determined based on the minimum travel distance (minimum stroke) of the elevator apparatus. The distance traveled by the elevator apparatus, that is, the distance traveled from the lowest floor to the top floor, varies depending on the installation location and the building. There is also an elevator apparatus with an extremely short traveling distance. Therefore, even in such an extremely short traveling distance, that is, the minimum traveling distance, a conversion constant is set so that the simulated speed signal waveform can reach the operating speed specified value at the traveling speed of the lifting / lowering body 103 below the rated speed. Is required.

  In this way, by generating the simulated speed signal waveform by multiplying the speed signal waveform by the conversion constant, the simulated speed signal waveform is defined as the operation speed even when the elevator traveling speed, that is, the traveling speed of the lifting body 103 is lower than the rated speed. You can create a state that reaches the value. Therefore, it is possible to accurately determine whether or not the speed signal waveform has reached the specified operating speed without changing the specified operating speed (without changing the specified operating speed).

  As for the operating speed of the overspeed switch function, a predetermined conversion constant is set for the elevator traveling speed when the overspeed switch function operates, that is, when the simulated speed signal waveform reaches the operating speed specified value, that is, the traveling speed of the elevator 103. It can be obtained (calculated) by multiplication.

[Example 1]
The inspection method according to the first embodiment is an example applied to the electronic safety controller 200A of the first system configuration example shown in FIG. FIG. 7 is an example of a flowchart illustrating an example of a processing procedure of the inspection method according to the first embodiment. FIG. 8 is an example of a diagram illustrating a change in waveform with respect to time of the operation speed specified value, the speed signal waveform, and the simulated speed signal waveform in the inspection method according to the first embodiment. In FIG. 8, the operation speed regulation value is Vth, the speed signal waveform is S11, and the simulated speed signal waveform is S12. The same applies to the examples described later.

  The overspeed switch function unit 207 first sets a conversion constant for converting the speed signal waveform S11 to the simulated speed signal waveform S12 (step S11), and then causes the elevator 103 to travel at a traveling speed that is less than or equal to the rated speed. (Step S12). Next, the overspeed switch function unit 207 captures the speed signal of the lifting body 103 from the speed information calculation unit 202 (step S13), and then multiplies the captured speed signal waveform S11 by a conversion constant to simulate the speed signal. A waveform S12 is generated (step S14).

  Next, the overspeed switch function unit 207 determines whether or not the simulated speed signal waveform S12 has reached the operating speed specified value Vth (step S15). If the overspeed switch function unit 207 determines that the simulated speed signal waveform S12 has reached the operating speed specified value Vth (YES in S15), the overspeed switch function unit 207 outputs a command signal for stopping the traveling of the lifting body 103 (step S16). . If the simulated speed signal waveform S12 does not reach the operating speed specified value Vth (NO in S15), the overspeed switch function unit 207 returns to step S13 and performs the processes in steps S13 to S15 with the simulated speed signal waveform S12. Is repeatedly executed until it is determined that the specified operating speed Vth has been reached.

  As described above, the simulated speed signal waveform S12 is generated by multiplying the speed signal waveform S11 to generate the simulated speed signal waveform S12, so that the simulated speed signal is generated even when the traveling speed of the elevator 103 is equal to or lower than the rated speed as shown in FIG. It is possible to create a state in which the waveform S11 reaches the operating speed regulation value Vth. Therefore, it is possible to accurately determine whether or not the speed signal waveform S11 has reached the operating speed specified value Vth without changing the operating speed specified value Vth.

[Example 2]
The inspection method according to the second embodiment is an example applied to the electronic safety controller 200B of the second system configuration example shown in FIG. FIG. 9 is an example of a flowchart illustrating an example of a processing procedure of the inspection method according to the second embodiment. FIG. 10 is an example of a diagram illustrating a change in waveform with respect to time of a specified operation speed, a speed signal waveform, a delay speed signal waveform, and a simulated speed signal waveform in the inspection method according to the second embodiment.

  In the case of the electronic safety controller 200B of the second system configuration example, a delay (time delay) is caused by filtering the speed signal waveform S11 output from the speed information calculation unit 202 by the low-pass filter processing unit 203. . In FIG. 10, the speed signal waveform S11 in which this delay occurs is shown as a delay speed signal waveform S21.

  As apparent from FIG. 10, when the delay signal waveform S21 is delayed at a certain point in time due to a delay in the delay signal signal S21 with respect to the speed signal waveform S11, the speed signal waveform S11 is compared. Exceeds the delay speed signal waveform S21. Since the overspeed switch function unit 207 performs the operation determination using the delay speed signal waveform S21, the operation of the overspeed switch function is performed at the operating point P21 where the delay speed signal waveform S21 reaches the operation speed specified value Vth. Therefore, the operating speed of the overspeed switch function unit 207 is the speed of the operating point P22 that exceeds the speed of the operating point P21.

  Subsequently, the procedure of the inspection method according to the second embodiment will be described with reference to the flowchart of FIG.

  The overspeed switch function unit 207 first sets a conversion constant for converting the speed signal waveform S11 to the simulated speed signal waveform S12 (step S21), and then causes the elevator 103 to travel at a traveling speed equal to or lower than the rated speed. (Step S22). Next, the overspeed switch function unit 207 captures the speed signal of the lifting body 103 from the speed information calculation unit 202 (step S23), and then multiplies the captured speed signal waveform S11 by a conversion constant to simulate the speed signal. A waveform S12 is generated (step S24).

  Next, the overspeed switch function unit 207 performs filtering processing by the low-pass filter processing unit 203 on the simulated speed signal waveform S12 (step S25), and then the delay speed signal waveform S21 reaches the operating speed specified value Vth. Whether or not (step S26). If the overspeed switch function unit 207 determines that the delay speed signal waveform S21 has reached the operating speed specified value Vth (YES in S26), the overspeed switch function unit 207 outputs a command signal for stopping the traveling of the elevating body 103 (step S27). . If the delay speed signal waveform S21 has not reached the operating speed specified value Vth (NO in S26), the overspeed switch function unit 207 returns to step S23 and performs the processes in steps S23 to S26 with the delay speed signal waveform S21. Is repeatedly executed until it is determined that the specified operating speed Vth has been reached.

  As described above, even in the second embodiment applied to the electronic safety controller 200B of the second system configuration example that performs the filtering process on the speed signal waveform S11, the same operations and effects as the first embodiment are obtained. Can do. That is, as shown in FIG. 10, it is possible to create a state in which the simulated speed signal waveform S <b> 21 reaches the operating speed specified value Vth even when the traveling speed of the elevating body 103 is equal to or lower than the rated speed. Therefore, it is possible to determine the operation of the overspeed switch function without changing the operation speed specified value Vth.

[Example 3]
Similarly to the inspection method according to the second embodiment, the inspection method according to the third embodiment is an example applied to the electronic safety controller 200B of the second system configuration example illustrated in FIG. FIG. 11 is an example of a flowchart illustrating an example of a processing procedure of the inspection method according to the third embodiment. FIG. 12 is an example of a diagram illustrating a change in waveform with respect to time of an operation speed prescribed value, a speed signal waveform, a delay speed signal waveform, and a simulated speed signal waveform in the inspection method according to the third embodiment.

  In the second embodiment, the filtering process is performed on the pseudo speed signal waveform after the conversion constant is multiplied. In the third embodiment, the delay speed signal waveform after the filtering process is performed on the pseudo speed signal waveform. The conversion constant is multiplied. The specific processing procedure will be described with reference to the flowchart of FIG.

  The overspeed switch function unit 207 first sets a conversion constant for converting the delay speed signal waveform S31 to the simulated delay speed signal waveform S32 (step S31), and then moves the lifting body 103 at a traveling speed equal to or lower than the rated speed. Run (step S32). Next, the overspeed switch function unit 207 captures the speed signal of the lifting body 103 from the speed information calculation unit 202 (step S33), and then performs filtering processing by the low-pass filter processing unit 203 on the captured speed signal waveform S11. (Step S34).

  Next, the overspeed switch function unit 207 generates a simulated delay speed signal waveform S32 by multiplying the delay speed signal waveform S31 after the filtering process by a conversion constant (step S35). Next, the overspeed switch function unit 207 determines whether or not the simulated delay speed signal waveform S32 has reached the operating speed specified value Vth (step S36). When the overspeed switch function unit 207 determines that the simulated delay speed signal waveform S32 has reached the operating speed regulation value Vth (YES in S36), the overspeed switch function unit 207 outputs a command signal for stopping the traveling of the elevating body 103 (step S37). ). If the simulated delay speed signal waveform S32 has not reached the operating speed specified value Vth (NO in S36), the overspeed switch function unit 207 returns to step S33 and performs each process of steps S33 to S36 with the simulated delay speed signal. The process is repeated until it is determined that the waveform S32 has reached the operating speed regulation value Vth.

  As described above, in the third embodiment in which the conversion constant is applied to the delay speed signal waveform S31 after the filtering process, the same operations and effects as in the first embodiment can be obtained. That is, as shown in FIG. 12, even when the traveling speed of the elevating body 103 is equal to or lower than the rated speed, it is possible to create a state in which the simulated delay speed signal waveform S32 reaches the operating speed specified value Vth. Therefore, it is possible to determine the operation of the overspeed switch function without changing the operation speed specified value Vth.

  In the case of the inspection method according to the third embodiment, as shown in FIG. 12, the overspeed switch function operates at an operating point P31 where the simulated delay speed signal waveform S32 reaches the operating speed specified value Vth. That is, since the overspeed switch function unit 207 performs operation determination using the simulated delay speed signal waveform S32, the operation of the overspeed switch function is performed at the operating point P31 where the simulated delay speed signal waveform S32 reaches the operation speed specified value Vth. It becomes. The operating speed of the overspeed switch function unit 207 is the speed of the operating point P32 that exceeds the speed of the operating point P31.

  Here, the speed difference between the speed signal waveform S11 when the overspeed switch function operates and the delayed speed signal waveform S31 after the filtering process is defined as a. Also, let b be the speed difference between the simulated speed signal waveform S12 when the overspeed switch function is activated and the simulated delayed speed signal waveform S32 after the filtering process. When the conversion constant is multiplied to the delayed speed signal waveform after the filtering process, the speed difference due to the filtering process, that is, the difference between the speed difference a and the speed difference b increases as apparent from FIG. Recognize.

  When the speed difference due to the filtering process is large, the simulated speed signal waveform S12 becomes larger than the operation speed specified value Vth (speed difference b), so that the operation of the overspeed switch function unit 207 varies and inspection is difficult. There is a concern to become. In order to reduce the speed difference due to this filtering process, it is preferable to reduce the acceleration in traveling of the lifting body 103. By reducing the acceleration in the traveling of the lifting body 103, the speed change during the time delay due to the filtering process is reduced, so that the speed difference due to the filtering process can be reduced.

  In addition, this invention is not limited to above-described embodiment, 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. Further, the present invention is not limited to application to the elevator apparatus according to the above-described embodiment.

DESCRIPTION OF SYMBOLS 100 Building 101 Machine room 102 Hoistway 103 Lifting body 104 Counterweight 105 Main rope (main rope)
106 Hoisting machine 107 Control panel 108 Emergency stop device 109 Actuating lever 110 Speed governor 111 Speed governing rope 112, 131 to 134, 141, 142 Sheave 113 Shedding wheel for speed governor weight 120 Rotary encoder 135 Roller of rotary encoder 136 Guide rail 137 Tail cord 143 Endless rope 150 Position detection unit 160 Switch unit 200A, 200B Electronic safety controller 201 Position information calculation unit 202 Speed information calculation unit 203 Low-pass filter processing unit 204 Various switch inspection function unit 205 Limit switch function unit 206 Terminal floor forced deceleration function section 207 Overspeed switch function section 208 Door floor travel protection function section 209 Rationality detection function section 210 Stop output function section

Claims (5)

A speed detection unit that detects a speed signal representing the traveling speed of the lifting body;
A control unit having an overspeed switch function to stop driving of the elevating body when the value of the speed signal detected by the speed detecting unit reaches a specified value set corresponding to the abnormal speed of the elevating body; ,
An elevator device comprising:
The overspeed switch function, the whether inspection of the operation speed overspeed switch function to work properly, the lifting body have a check mode for while traveling in the following run line speed rated speed,
In the inspection mode, the overspeed switch function generates a simulated speed signal waveform by multiplying the waveform of the speed signal detected by the speed detector by a conversion constant, and the speed detector uses the simulated speed signal waveform. Monitor whether the detected speed signal value reaches the specified value,
The conversion constant is set to a value at which the simulated speed signal waveform can reach the specified value even when the lifting body travels at a travel speed equal to or less than the rated speed of the elevator device. Elevator equipment. The elevator apparatus according to claim 1, further comprising a low-pass filter that blocks a frequency component caused by excessive vibration of the elevating body included in the speed signal . 3. The elevator apparatus according to claim 2, wherein the overspeed switch function multiplies the speed signal waveform detected by the speed detection unit by the conversion constant, and then performs a filtering process by the low-pass filter . The elevator apparatus according to claim 2 , wherein the overspeed switch function performs a filtering process by the low-pass filter on a speed signal waveform detected by the speed detection unit , and then multiplies the conversion constant . A speed detector for detecting the traveling speed of the elevator,
A control unit having an overspeed switch function to stop driving the elevating body when the speed signal detected by the speed detecting unit reaches a specified value set corresponding to the abnormal speed of the elevating body;
An electronic safety system inspection method for an elevator apparatus comprising:
In the above inspection mode overrunning switch function has, the lifting body have lines inspect the operating speed of the overspeed switch function while traveling in the following run line speed rated speed,
In the inspection, the overspeed switch function generates a simulated speed signal waveform by multiplying the waveform of the speed signal detected by the speed detection unit by a conversion constant, and the speed detection unit detects using the simulated speed signal waveform. Monitor whether the speed signal value reaches the specified value,
The conversion constant is set to a value at which the simulated speed signal waveform can reach the specified value even when the lifting body travels at a travel speed equal to or less than the rated speed of the elevator device. An electronic safety system inspection method for elevator equipment.

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