WO2006103769A1

WO2006103769A1 - Elevator apparatus

Info

Publication number: WO2006103769A1
Application number: PCT/JP2005/006112
Authority: WO
Inventors: Masafumi Iwata; Tatsuo Matsuoka
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2005-03-30
Filing date: 2005-03-30
Publication date: 2006-10-05
Also published as: EP1880967A4; PT1880967E; EP2660181A1; ES2530693T3; CN1950286B; JP4930792B2; CN1950286A; ES2526400T3; EP1880967A1; PT2660180E; EP2660180B1; EP2660181B1; EP1880967B1; EP2660180A1; JPWO2006103769A1

Abstract

In an elevator apparatus, an electronic overspeed detection device monitors whether the speed of an elevator car reaches an overspeed monitor pattern. The overstepped monitor pattern is set so as to vary steplessly relative to a position in a car retardation zone of at least a hoistway final section. An operation mode of the electronic overspeed detection device includes an inspection mode for inspecting the electronic overspeed detection device itself. In the inspection mode, the overspeed monitor pattern is changeable.

Description

Specification

Elevator equipment

Technical field

[0001] The present invention relates to an elevator apparatus having an electronic overspeed detection device that monitors whether or not the force speed reaches an overspeed monitoring pattern.

Background art

In a conventional speed detection device for an elevator apparatus, a pulse disk in which first and second disks are overlapped is used. In addition, the number of effective through holes of the pulse disk can be changed by changing the overlapping angle of the second disk with respect to the first disk. Specifically, during inspection work to check whether the speed detector operates normally, the number of effective through-holes is increased by a factor of 2 to simulate a lifting speed that is twice that of normal speed. (See, for example, Patent Document 1).

Patent Document 1: Japanese Patent Laid-Open No. 5-338948

Disclosure of the invention

Problems to be solved by the invention

[0004] In the conventional elevator apparatus as described above, when the inspection of the speed detection device is performed, the second disk relative to the first disk is placed in the hoistway or the machine room where the speed detection device is installed. It is necessary for the operator to change the overlap angle manually, which is laborious.

[0005] The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator apparatus that can easily perform an inspection operation of an electronic safety system including an electronic overspeed detection apparatus. And

Means for solving the problem

[0006] In the elevator apparatus according to the present invention, the overspeed monitoring pattern is set so as to change steplessly at least with respect to the position in the car deceleration section at the end of the hoistway, and the force speed is overspeed. An electronic overspeed detection device that monitors whether the monitoring pattern is reached is provided, and the electronic overspeed detection device itself is inspected in the operation mode of the electronic overspeed detection device. The inspection mode is included, and the overspeed monitoring pattern can be changed in the inspection mode.

Further, in the elevator apparatus according to the present invention, the overspeed monitoring pattern is set so as to change steplessly at least with respect to the position in the car deceleration section at the end of the hoistway. An electronic overspeed detection device is provided for monitoring whether the electronic overspeed detection device is reached. The operation mode of the electronic overspeed detection device includes an inspection mode for inspecting the electronic overspeed detection device itself. The car speed is monitored assuming that the car position is fixed at a predetermined fixed position in the car deceleration section even though the car is running.

Furthermore, the elevator apparatus according to the present invention includes a car that is raised and lowered in the hoistway, a brake part that brakes the raising and lowering of the car, a safety circuit part that brakes the brake part when opened, and a car that is at least the hoistway terminal part. An overspeed monitoring pattern is set so that the position in the deceleration zone changes steplessly, and an electronic overspeed detection device is provided to monitor whether the force speed reaches the overspeed monitoring pattern. The operation mode of the overspeed detection device includes an inspection mode for inspecting the electronic overspeed detection device itself, and the safety circuit is opened in conjunction with switching the operation mode to the inspection mode. It has become like that.

Furthermore, the elevator apparatus according to the present invention is stepless with respect to a car that is raised and lowered in the hoistway, an operation control unit that controls operation of the force, and at least a position in the force deceleration zone at the end of the hoistway. The overspeed monitoring pattern is set so as to change at the same time, and an electronic overspeed detection device that monitors whether the force speed reaches the overspeed monitoring pattern is provided and is operated when the force stops at the floor. Based on the floor stop signal given by the control unit and the car position information obtained by the electronic overspeed detection device, the floor position obtained by the electronic overspeed detection device when the force stops on the floor is obtained. A floor-to-floor distance calculation unit for storing and calculating a distance between predetermined floors is further provided.

In addition, the elevator apparatus according to the present invention changes steplessly with respect to the position of the car that is raised and lowered in the hoistway, the operation control unit that controls the operation of the force, and at least the end of the hoistway in the force decelerating section. The overspeed monitoring pattern is set so that the car speed Electronic overspeed detection device that monitors whether or not the visual pattern is reached, and a reference that is provided at a reference position in the hoistway and that inputs that the force is in the reference position to the electronic overspeed detection device The position sensor is equipped with a floor stop signal given by the operation control unit when the force stops on the floor and the car position information obtained by the electronic overspeed detection device. The floor position obtained by the electronic overspeed detection device at the time of stoppage is memorized, and the force is determined based on the car position information obtained by the electronic overspeed detection device and the information from the reference position sensor. The apparatus further includes a reference position calculation unit that stores a reference position obtained by the electronic overspeed detection device at the position and obtains a distance between the predetermined floor and the reference position.

Brief Description of Drawings

圆 1] A configuration diagram illustrating an elevator apparatus according to Embodiment 1 of the present invention.

FIG. 2 is a graph showing an overspeed pattern set in the governor and ETS circuit section of FIG.

FIG. 3 is a block diagram showing functions of the ETS circuit unit of FIG. 1.

FIG. 4 is a graph showing a first example of an overspeed monitoring pattern in the inspection mode of the ETS circuit section of FIG.

FIG. 5 is a graph showing a second example of an overspeed monitoring pattern in the inspection mode of the ETS circuit section of FIG.

FIG. 6 is a graph showing a third example of an overspeed monitoring pattern in the inspection mode of the ETS circuit section of FIG.

FIG. 7 is a graph showing a fourth example of an overspeed monitoring pattern in the inspection mode of the ETS circuit section of FIG.

FIG. 8 is a block diagram showing functions of an ETS circuit portion of an elevator apparatus according to Embodiment 2 of the present invention.

FIG. 9 is a graph showing an example of an overspeed monitoring pattern in the inspection mode of the ETS circuit section of FIG.

FIG. 10 is a block diagram showing a main part of an elevator apparatus according to Embodiment 3 of the present invention. FIG. 11 is a block diagram showing a main part of an elevator apparatus according to Embodiment 4 of the present invention.

FIG. 12 is a block diagram showing a normal state of main parts of an elevator apparatus according to Embodiment 5 of the present invention.

13 is a block diagram showing a state of the apparatus of FIG. 12 in an inspection mode.

FIG. 14 is a block diagram showing functions of an ETS circuit portion of an elevator apparatus according to Embodiment 6 of the present invention.

FIG. 15 is a front view showing an example of a display screen by the relative position display unit and the reference position display unit of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1.

FIG. 1 is a configuration diagram showing an elevator apparatus according to Embodiment 1 of the present invention. In the figure, a pair of car guide rails 2 and a pair of counterweight guide rails (not shown) are installed in the hoistway 1. The force 3 is guided by the car guide rail 2 and moved up and down in the hoistway 1. The counterweight 4 is moved up and down in the hoistway 1 by being guided by the counterweight guide rail.

At the bottom of the car 3, an emergency stop device 5 that engages with the force car guide rail 2 and makes the car 3 stop emergency is mounted. The emergency stop device 5 has a pair of braking pieces (wedge members) 6 that are operated by mechanical operation and pressed against the car guide rail 2.

[0010] In the upper part of the hoistway 1, a driving device (lifting machine) 7 for raising and lowering the force 3 and the counterweight 4 via a main rope is installed. The drive unit 7 generates a detection signal corresponding to the rotation of the drive sheave 8, the motor unit (not shown) that rotates the drive sheave 8, the brake unit 9 that brakes the rotation of the drive sheave 8, and the drive sheave 8. A motor encoder 10 is provided.

[0011] As the brake unit 9, for example, an electromagnetic brake device is used. In an electromagnetic brake device, the brake shoe is pressed against the braking surface by the spring force of the braking spring, braking the rotation of the drive sheave 8, and the brake surface force is released by exciting the electromagnetic magnet. And braking is released. [0012] The elevator control panel 11 is disposed, for example, in the lower part of the hoistway 1 or the like. The elevator control panel 11 is provided with an operation control unit 12 for controlling the operation of the drive device 7 and a safety circuit unit (relay circuit unit) 13 for suddenly stopping the car 3 when the elevator is abnormal. Yes. A detection signal from the motor encoder 10 is input to the operation control unit 12. The operation control unit 12 obtains the position and speed of the car 3 based on the detection signal from the motor encoder 10 and controls the driving device 7.

[0013] When the relay circuit of the safety circuit unit 13 is opened, the power supply to the motor unit of the drive unit 7 is cut off, and the energization of the electromagnetic magnet of the brake unit 9 is cut off, so that the drive 8 is braked.

A speed governor (mechanical speed governor) 14 is installed in the upper part of the hoistway 1. The governor 14 is provided with a governor sheave 15, an overspeed detection switch 16, a rope catch 17, and a governor encoder 18 as a sensor. A governor rope 19 is wound around the governor sheave 15. Both ends of the governor rope 19 are connected to the operation mechanism of the safety device 5. The lower end portion of the governor rope 19 is wound around a tension wheel 20 disposed at the lower part of the hoistway 1.

When the force 3 is raised and lowered, the speed governor rope 19 is circulated, and the speed governor sheave 15 is rotated at a rotational speed corresponding to the traveling speed of the force 3. The governor 14 mechanically detects that the traveling speed of the force 3 has reached an overspeed. The overspeed to be detected is set to V higher than the rated speed, the first overspeed (OS speed), higher than the first overspeed !, and the second overspeed (Trip speed). .

[0016] When the traveling speed of the force 3 reaches the first overspeed, the overspeed detection switch 16 is operated. When the overspeed detection switch 16 is operated, the relay circuit of the safety circuit unit 13 is opened. When the traveling speed of the force 3 reaches the second overspeed, the rope catcher 17 grips the governor group 19 and the circulation of the governor rope 19 is stopped. When the circulation of the governor rope 19 is stopped, the emergency stop device 5 is braked.

The governor encoder 18 generates a detection signal corresponding to the rotation of the governor sheave 15. The governor encoder 18 is a dual sense type encoder that outputs two detection signals, that is, first and second detection signals simultaneously. [0018] The first and second detection signals from the governor encoder 18 are the ETS circuit unit 22 (electronic overspeed detection device) of the terminal floor forced reduction device (ETS device) provided in the electronic safety controller 21. Is input. The ETS circuit unit 22 detects an abnormality in the elevator based on the detection signal from the governor encoder 18 and outputs a command signal for shifting the elevator to a safe state. Specifically, the ETS circuit unit 22 obtains the traveling speed and position of the car 3 independently of the operation control unit 12 by the signal from the governor encoder 18, and the car speed is an overspeed monitoring pattern ( Monitor whether the overspeed detection level is reached. The overspeed monitoring pattern is set to change steplessly with respect to the position in the car deceleration zone at the end of the hoistway.

In addition, the ETS circuit unit 22 converts the signal from the governor encoder 18 into a digital signal and performs digital arithmetic processing, so that the traveling speed of the force 3 reaches the ETS monitoring overspeed. Judge whether. When the ETS circuit unit 22 determines that the traveling speed of the car 3 has reached the ETS monitoring overspeed, the relay circuit of the safety circuit unit 13 is opened.

[0020] Further, the ETS circuit unit 22 can detect an abnormality in the ETS circuit unit 22 itself and an abnormality in the governor encoder 18. When an abnormality is detected in the ETS circuit unit 22 itself or the governor encoder 18, the nearest floor stop command signal as a command signal for shifting the elevator to a safe state is sent from the ETS circuit unit 22 to the operation control unit 12. Are output. Further, bidirectional communication is possible between the ETS circuit unit 22 and the operation control unit 12.

[0021] First to fourth reference position sensors (position detection switches) for detecting that the force 3 is located at a reference position in the hoistway 1 at a predetermined position in the hoistway 1 23 ~ 26 are provided. As the reference position sensors 23 to 26, upper and lower terminal switches can be used. Detection signals from the reference position sensors 23 to 26 are input to the ETS circuit unit 22. The ETS circuit unit 22 corrects the position information of the car 3 obtained in the ETS circuit unit 22 based on the detection signals from the reference position sensors 23 to 26.

A car shock absorber 27 and a counterweight shock absorber 28 are installed at the bottom of the hoistway 1.

As these shock absorbers 27 and 28, for example, oil-filled or spring-type buffers are used.

[0023] FIG. 2 shows an overspeed pattern set in the governor 14 and the ETS circuit unit 22 in FIG. It is a graph which shows. In the figure, when the car 3 travels at the normal speed (rated speed) from the lower terminal floor to the upper terminal floor, the speed pattern of the car 3 is the normal speed pattern V.

0 The speed governor 14 is provided with first and second overspeed patterns V and V by mechanical position adjustment.

1 2 Defined. An ETS overspeed monitoring pattern V is set in the ETS circuit section 22.

E

[0024] The ETS overspeed monitoring pattern V is set higher than the normal speed pattern V! Ma

E 0

The ETS overspeed monitoring pattern V is the same as the normal speed pattern V in the entire up / down stroke.

E 0

It is set so that it is equally spaced. That is, the ETS overspeed monitoring pattern V is

E

It changes according to the position. More specifically, the ETS overspeed monitoring pattern V is intermediate

E

It is set to be constant near the floor, but it is set to be continuously and smoothly lowered near the terminal floor (upper and lower ends) of the hoistway 1 near the terminal floor. In this way, the ETS circuit section 22 monitors the traveling speed of the force 3 even in the vicinity of the intermediate floor (the constant speed traveling section in the normal speed pattern V) that is not only in the vicinity of the terminal floor,

0

You do n’t have to monitor!

[0025] The first overspeed pattern V is set higher than the ETS overspeed monitoring pattern V!

1 E

. In addition, the second overspeed pattern V is set higher than the first overspeed pattern V.

twenty one

It is. In addition, the first and second overspeed patterns V and V are at all heights in the hoistway 1.

1 2

It is constant.

FIG. 3 is a block diagram showing functions of the ETS circuit unit 22 of FIG. The ETS circuit unit 22 includes a speed detection unit 31, a position calculation unit 32, an overspeed monitoring unit 33, and an inspection mode setting unit 34. The speed detector 31 detects the traveling speed of the force 3 based on the signal from the governor encoder 18. The position calculation unit 32 calculates the position of the car 3 based on the signals from the reference position sensors 23 to 26 and the car speed information from the speed detection unit 31.

The overspeed monitoring unit 33 determines whether the car speed is an overspeed monitoring pattern based on the car speed information from the speed detection unit 31, the car position information from the position calculation unit 32, and a preset overspeed monitoring pattern. Monitor whether you reach. When the car speed reaches the overspeed level of the overspeed monitoring pattern, a forced deceleration command is output to the safety circuit section 13 and the relay circuit of the safety circuit section 13 is opened.

[0028] The operation mode of the ETS circuit unit 22 includes a normal mode and an inspection of the ETS circuit unit 22 itself. An inspection mode is included. In the inspection mode, the overspeed monitoring pattern can be changed. The inspection mode setting unit 34 sets the change of the overspeed monitoring pattern in the inspection mode.

[0029] The ETS circuit unit 22 includes a computer (not shown) having an arithmetic processing unit (CPU), a storage unit (ROM, RAM, hard disk, etc.) and a signal input / output unit. The functions of the speed detection unit 31, the position calculation unit 32, the overspeed monitoring unit 33, and the inspection mode setting unit 34 shown in FIG. 3 are realized by the computer of the ETS circuit unit 22. In other words, a program for realizing the functions of the speed detection unit 31, the position calculation unit 32, the overspeed monitoring unit 33, and the inspection mode setting unit 34 is stored in the storage unit of the computer. The arithmetic processing unit executes arithmetic processing related to the functions of the speed detection unit 31, the position calculation unit 32, the overspeed monitoring unit 33, and the inspection mode setting unit 34 based on the program.

[0030] The operation control unit 12 is configured by a computer different from the ETS circuit unit 22.

FIG. 4 is a graph showing a first example of an overspeed monitoring pattern in the inspection mode of the ETS circuit unit 22 of FIG. In the first example, the overspeed monitoring pattern V in the car deceleration section at the end of the hoistway is shifted as it is to the middle part of the lifting and lowering stroke of the force 3, so that the monitoring monitor for inspection is used.

E

Turn V is set. When the ETS circuit section 22 is inspected, the car 3

EC

Travel along hoistway 1 according to However, the overspeed monitoring pattern has changed

0

Therefore, the traveling pattern of the car 3 at the time of inspection is the traveling pattern V at the time of inspection.

0C

[0032] Thus, by setting the change of the overspeed monitoring pattern in the inspection mode, it is possible to detect the overspeed at the intermediate portion of the hoistway 1 even if the force 3 is run at the rated speed. In addition, the ETS circuit 22 can be easily inspected. In addition, it is not necessary to run the force 3 at a speed higher than the rated speed for the inspection of the ETS circuit section 22, so it is not necessary to increase the capacity of the motor section of the drive unit 7 only for the inspection. .

FIG. 5 is a graph showing a second example of the overspeed monitoring pattern in the inspection mode of the ETS circuit unit 22 of FIG. In the second example, the inspection monitoring pattern V is changed by shifting the overspeed monitoring pattern V in the car deceleration zone at the end of the hoistway to a lower value than in the normal mode.

E EC

Is set. [0034] As described above, in the inspection mode, the inspection work of the ETS circuit unit 22 can also be performed by setting the inspection monitoring pattern V having a lower speed than the overspeed monitoring pattern in the normal mode.

EC

Can be easily performed.

FIG. 6 is a graph showing a third example of the overspeed monitoring pattern in the inspection mode of the ETS circuit unit 22 of FIG. In the third example, the overspeed monitoring pattern V in the car deceleration zone at the end of the hoistway is shifted by an arbitrary distance in the lifting direction of the force 3, thereby increasing the monitoring speed for inspection.

E

Turn V is set.

EC

[0036] Even with such a monitoring pattern V for inspection, overspeed is detected while traveling below the rated speed.

EC

The ETS circuit section 22 can be easily inspected.

FIG. 7 is a graph showing a fourth example of the overspeed monitoring pattern in the inspection mode of the ETS circuit unit 22 of FIG. In the fourth example, the inspection monitoring pattern V is set so that the overspeed detection level is constant regardless of the position in the hoistway 1 and is below the rated speed.

EC

[0038] Even with such a monitoring pattern V for inspection, overspeed is detected while traveling below the rated speed.

EC

The ETS circuit section 22 can be easily inspected.

[0039] Embodiment 2.

Next, FIG. 8 is a block diagram showing functions of the ETS circuit unit 22 of the elevator apparatus according to Embodiment 2 of the present invention. The elevator apparatus of the second embodiment is different from the first embodiment only in the functional configuration of the ETS circuit unit 22, and the configuration of the entire elevator apparatus is the same as that of the first embodiment.

In this example, in the inspection mode, the inspection mode setting unit 34 changes the car position information given from the position calculation unit 32 to the overspeed monitoring unit 33. Specifically, when the ETS circuit unit 22 is in the inspection mode, for example, as shown in FIG. 9, the overspeed monitoring pattern V itself is changed.

E

Instead, the car position information given from the position calculation unit 32 to the overspeed monitoring unit 33 is fixed at a predetermined fixed position in the car deceleration section. That is, in the inspection mode, the car speed is monitored on the assumption that the car position is fixed at a fixed position even though the car 3 is actually running.

[0041] In this manner, substantially the same condition as when the inspection monitoring pattern V is set so that the overspeed detection level is constant regardless of the position in the hoistway 1 and is equal to or less than the rated speed. Thus, overspeed can be detected when traveling below the rated speed, and the ETS circuit section 22 can be easily inspected.

[0042] The fixed position may be appropriately changed within the car deceleration section. From this, the ETS circuit 22 can be inspected multiple times while changing the fixed position.

[0043] Embodiment 3.

Next, FIG. 10 is a block diagram showing a main part of an elevator apparatus according to Embodiment 3 of the present invention. In the figure, an automatic inspection command input unit 35 for inputting a command for automatically inspecting the ETS circuit unit 22 is connected to the ETS circuit unit 22 and the operation control unit 12. When the automatic inspection command is input to the automatic inspection command input unit 35, the inspection mode setting command is input to the inspection mode setting unit 34 of the ETS circuit unit 22, and the inspection traveling pattern is input to the operation control unit 12.

[0044] When an inspection mode setting command is input to the inspection mode setting unit 34, the operation mode of the ETS circuit unit 22 is switched to the inspection mode, and the setting change as shown in the embodiment 1 or 2 is executed. The On the other hand, when the inspection travel pattern is input to the operation control unit 12, the operation control unit 12 causes the car 3 to travel according to the inspection travel pattern. Other configurations are the same as those in the first or second embodiment.

In such an elevator apparatus, the inspection of the ETS circuit unit 22 including the test running of the force 3 and the setting change of the ETS circuit unit 22 can be performed only by inputting the inspection command to the automatic inspection command input unit 35. This can be done automatically, reducing the burden on maintenance personnel during the inspection.

It should be noted that the input of the inspection mode setting command to the ETS circuit unit 22 and the input of the inspection traveling pattern to the operation control unit 12 may be performed simultaneously or with a time difference. For example, an inspection driving pattern may be input to the operation control unit 12 after a predetermined time has elapsed after inputting an inspection mode setting command to the ETS circuit unit 22. Alternatively, the car 3 may be started to travel after a predetermined time after the test travel pattern is input to the operation control unit 12.

[0047] Furthermore, the inspection traveling pattern input to the operation control unit 12 may be two or more traveling patterns. For example, if the initial position of the car 3 at the time of inspection is determined, a command for moving the cage 3 to the initial position is input to the operation control unit 12, and then the inspection mode is It is also possible to input a mode setting command to the ETS circuit unit 22 and then input a traveling command in the inspection traveling pattern to the operation control unit 12.

[0048] Furthermore, the automatic inspection command input unit 35 may be provided independently of the ETS circuit unit 22 and the operation control unit 12, but may be provided as a part of the ETS circuit unit 22 or the operation control unit 12. Is possible.

[0049] Embodiment 4.

Next, FIG. 11 is a block diagram showing a main part of an elevator apparatus according to Embodiment 4 of the present invention. In the figure, an interlocking switch 36 is connected to the ETS circuit unit 22. When the first switch 36a of the interlock switch 36 is closed, the inspection mode start circuit is short-circuited, and the inspection mode setting unit 34 sets the inspection mode.

[0050] The interlocking switch 36 is provided with a second switch 36b connected in series to the safety circuit unit 13. The second switch 36b is opened and closed mechanically in conjunction with the opening and closing of the first switch 36a. Specifically, the second switch 36b is opened when the first switch 36a is closed. Therefore, when the first switch 36a is closed, the safety circuit unit 13 is opened.

[0051] In such an elevator apparatus, since the setting of the inspection mode and the opening of the safety circuit unit 13 are performed in conjunction with each other, the inspection mode can be set while the car 3 is stopped more reliably. . In addition, regarding the inspection of the ETS circuit portion 22 that is performed by the operator moving on the rivet 3 or in the hoistway 1, the work can be performed in a state where the urn 3 is more reliably stopped.

[0052] Embodiment 5.

Next, FIG. 12 is a block diagram showing the normal state of the main part of the elevator apparatus according to Embodiment 5 of the present invention, and FIG. 13 is a block diagram showing the state of the apparatus of FIG. 12 in the inspection mode. In the figure, the safety circuit section 13 and the inspection mode start circuit are selectively short-circuited using a jumper plug 37. That is, in the normal state, the safety circuit unit 13 is short-circuited by the jumper plug 37, and the inspection mode start circuit is opened. On the other hand, in the inspection mode, the inspection mode start circuit is short-circuited by the jumper plug 37 and the safety circuit section 13 is opened.

[0053] As an inspection method of the ETS circuit section 22 performed by stopping the force 3, there are the following methods. First, the position calculation unit 32 is given to the speed calculation unit 33 by the method shown in the second embodiment. Fix the car location information. Next, temporarily remove the governor rope 19 from the governor sheave 15. Thereafter, the governor sheave 15 is rotated by an electric drill or the like, and a signal corresponding to the rotational speed of the governor sheave 15 is output from the governor encoder 18. By performing the inspection in this manner, the speed can be detected by the speed detection unit 31 that does not actually run the force 3. When the speed exceeds the overspeed monitoring pattern V,

E

By looking at the switch operation of the circuit unit 13, it is possible to confirm whether the operation of the ETS circuit unit 22 is correct.

[0054] In such an elevator apparatus, since the setting of the inspection mode and the opening of the safety circuit unit 13 are performed in conjunction with each other, the inspection mode can be set while the car 3 is stopped more reliably. . In addition, regarding the inspection of the ETS circuit portion 22 that is performed by the operator moving on the rivet 3 or in the hoistway 1, the work can be performed in a state where the urn 3 is more reliably stopped.

[0055] Embodiment 6.

Next, FIG. 14 is a block diagram showing functions of the ETS circuit unit 22 of the elevator apparatus according to Embodiment 6 of the present invention. The ETS circuit unit 22 includes a speed detection unit 31, a position calculation unit 32, an overspeed monitoring unit 33, a floor stop position storage unit 38, a reference position storage unit 39, a relative position display unit 40, and a reference position display unit 41. Speak.

When the force 3 stops on the floor, a floor stop signal is given from the operation control unit 12 to the floor stop position storage unit 38. Further, the car position information calculated by the position calculation unit 32 is given to the floor stop position storage unit 38. As a result, the floor stop position storage unit 38 stores the car position by the position calculation unit 32 when the force 3 stops at a predetermined floor.

The reference position storage unit 39 is supplied with reference position detection signals from the reference position sensors 23 to 26 and car position information calculated by the position calculation unit 32. Thus, the reference position storage unit 39 stores the car position by the position calculation unit 32 when the force 3 passes the reference position.

The relative position display unit 40 calculates a distance between two predetermined floors based on the information from the floor stop position storage unit 38, and monitors, for example, a monitor (not shown) as shown in FIG. Is displayed.

[0059] The reference position display unit 41 includes information from the floor stop position storage unit 38 and the reference position storage unit 39. Based on the information, the distance to the reference position sensors 23 to 26 is also calculated for a predetermined floor force and displayed on the monitor, for example, as shown in FIG.

The functions of the floor stop position storage unit 38, the reference position storage unit 39, the relative position display unit 40, and the reference position display unit 41 are realized by the computer of the ETS circuit unit 22. That is, the computer storage unit stores programs for realizing the functions of the floor stop position storage unit 38, the reference position storage unit 39, the relative position display unit 40, and the reference position display unit 41. The arithmetic processing unit executes arithmetic processing related to the functions of the floor stop position storage unit 38, the reference position storage unit 39, the relative position display unit 40, and the reference position display unit 41 based on the program.

Therefore, the inter-floor distance calculation unit and the reference position calculation unit of the sixth embodiment are the ETS circuit unit.

Consists of 22 computers!

[0062] In such an elevator apparatus, the distance between the predetermined floors output from the relative position display unit 40 can be compared with the distance between the actual floors of the building, whereby the ETS circuit unit 22 It is possible to easily check whether or not the relative distance calculation function by is working correctly.

[0063] In addition, the predetermined floor force output by the reference position display unit 41 can also compare the distance to the reference position with the predetermined floor force determined in advance to the distance to the reference position. It is possible to easily check whether the positions of the sensors 23 to 26 are correct. Furthermore, since the car position when passing through the reference position is obtained, it is possible to easily check whether the reference position sensors 23 to 26 are operating correctly.

[0064] In Embodiment 6, the functions of the floor stop position storage unit 38, the reference position storage unit 39, the relative position display unit 40, and the reference position display unit 41 realized by the computer of the ETS circuit unit 22 are used. The output from the relative position display unit 40 and the reference position display unit 41 may be displayed on a monitoring panel installed in the building management room. It is possible to easily check the relative distance calculation function and the functions of the reference position sensors 23 to 26 with a remote force.

Claims

The scope of the claims

[1] At least the overspeed monitoring pattern is set so that it changes steplessly with respect to the position in the car deceleration section at the end of the hoistway, and whether the force speed reaches the above overspeed monitoring pattern. Electronic overspeed detection device to monitor

In an elevator apparatus equipped with

The operation mode of the electronic overspeed detection device includes an inspection mode for detecting the electronic overspeed detection device itself,

An elevator apparatus characterized in that the overspeed monitoring pattern can be changed in the inspection mode.

[2] The elevator apparatus according to claim 1, wherein the electronic overspeed detecting device shifts the overspeed monitoring pattern in the car deceleration section to an intermediate portion side of an up / down stroke in the inspection mode.

[3] The elevator apparatus according to claim 1, wherein the electronic overspeed detection device shifts the overspeed monitoring pattern in the car deceleration section to a lower speed than usual in the inspection mode.

[4] The electronic overspeed detection device according to claim 1, wherein, in the inspection mode, the overspeed monitoring pattern of the car deceleration section can be shifted by an arbitrary distance in a car ascending / descending direction. Elevator device.

5. The electronic overspeed detection device according to claim 1, wherein in the inspection mode, the overspeed detection level is set to be constant regardless of the position in the hoistway and to be equal to or less than the rated speed. Elevator equipment.

[6] At least the overspeed monitoring pattern is set so that it changes steplessly with respect to the position in the car deceleration zone at the end of the hoistway. Check whether the force speed reaches the overspeed monitoring pattern. Electronic overspeed detection device to monitor

In an elevator apparatus equipped with

In the above inspection mode, the car position is reduced by the car even though the force is running. An elevator device characterized by monitoring the force and speed as being fixed at a predetermined fixed position in the section.

7. The elevator apparatus according to claim 6, wherein the fixed position is changeable.

[8] An operation control unit for controlling the operation of the car, and

Automatic inspection command input unit for inputting a command to automatically perform inspection of the electronic overspeed detection device

Further comprising

When the inspection command is input to the automatic inspection command input section, the operation mode of the electronic overspeed detection device is switched to the inspection mode, and the above-mentioned car traveling in the inspection traveling pattern is automatically started. The elevator apparatus according to any one of claims 1 to 7, characterized by:

[9] When an inspection command is input to the automatic inspection command input section, the car is automatically moved to the inspection start position by normal running, and then the operation mode of the electronic overspeed detection device is switched to the inspection mode. 9. The elevator apparatus according to claim 8, wherein traveling of the car in the inspection traveling pattern is started.

[10] A car that is raised and lowered in the hoistway,

A brake part for braking the raising and lowering of the car,

The overspeed monitoring pattern is set so that it changes steplessly with respect to the safety circuit part that brakes the brake part when released and at least the position in the car deceleration zone of the hoistway end part. Electronic overspeed detection device that monitors whether the speed reaches the above overspeed monitoring pattern

In an elevator apparatus equipped with

The elevator apparatus, wherein the safety circuit unit is opened in conjunction with switching the operation mode to the inspection mode.

[11] A car that is raised and lowered in the hoistway, An operation control unit for controlling the operation of the car, and

The overspeed monitoring pattern is set so that it changes in a stepless manner at least relative to the position in the car deceleration zone at the end of the hoistway. Overspeed detection device

In an elevator apparatus equipped with

When the car stops on the floor, the floor stop signal given to the operation control unit when the force stops on the floor and the car position information obtained by the electronic overspeed detection device An elevator apparatus, further comprising a floor-to-floor distance calculation unit that stores a floor position obtained by the electronic overspeed detection device and obtains a distance between predetermined floors.

A car that is raised and lowered in the hoistway,

An operation control unit for controlling the operation of the car,

The overspeed monitoring pattern is set so that it changes in a stepless manner at least relative to the position in the car deceleration zone at the end of the hoistway. Overspeed detection device, and

A reference position sensor provided at a reference position in the hoistway for inputting information indicating that the force is in the reference position to the electronic overspeed detection device

In an elevator apparatus equipped with

When the car stops on the floor, the floor stop signal given to the operation control unit when the force stops on the floor and the car position information obtained by the electronic overspeed detection device The floor position obtained by the electronic overspeed detection device is stored, and the car position is set to the reference position by the car position information obtained by the electronic overspeed detection device and the information from the reference position sensor. A reference position calculation unit that stores a reference position obtained by the electronic overspeed detection device when positioned and obtains a distance between a predetermined floor and the reference position is further provided. Elevator device.