JPH10279210A - Failure grasping device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trigger signal generation circuit which generates a trigger signal of a failure grasping device of an elevator which consists of a plurality of relay groups in a short time and accurately and reduce elevator non-operation hours. SOLUTION: This device is provided with a terminal 41 in which relay signals 10 to 101P for generating a trigger signal T for a plurality of failures of an elevator are input, and the predetermined signals 10 to 101P which correspond to the contents of the failure are connected to the terminal 41. Consequently, it is possible to generate the trigger signal T in a short time because the trigger signal T which corresponds to the failure is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator trouble catching device comprising a plurality of relay groups.

[0002]

2. Description of the Related Art Conventionally, when a multiple failure (a failure in which a failure having the same content occurs continuously many times) occurs in an elevator composed of a plurality of relay groups, for example, a special method is employed as a failure capture to investigate the cause of the failure. JP-A-55-74976 can be mentioned. The failure capturing device described in this publication temporarily and continuously stores signals of equipment necessary for investigating the cause of a failure in a memory of a microcomputer (hereinafter referred to as a microcomputer), and generates a trigger signal for detecting occurrence of a failure. After a predetermined time, the operation of storing the data in the memory is stopped, and the data in the memory is displayed on a display or recorded on a printer to determine the cause of the failure.

[0003]

In order to generate a trigger signal in the above-mentioned conventional apparatus, a plurality of predetermined relay signals are taken out from a control panel and the relay signals are combined.

[0004] By the way, there are various failures in elevators, such as abnormal opening / closing of doors, confinement in a car, etc., without starting the car. Therefore, at the site where a failure has occurred, configuring the above-described trigger signal generation circuit for each cause of the failure not only requires a great deal of labor and time, but also has a problem that the circuit is incorrectly created. In the meantime,
Since the operation of the elevator must be stopped for a long time, there is a problem that service is deteriorated.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator trouble catching device in which a trigger signal generating circuit of the trouble catching device can be configured accurately in a short time.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to continuously and endlessly store the state of a relay signal of an elevator composed of a plurality of relay groups in a memory of a microcomputer, and to detect a failure of the elevator. In an elevator trouble catching device provided with means for stopping a memory operation of the memory via a signal, a terminal for inputting a trigger signal generation relay corresponding to the plurality of troubles is provided, and this terminal responds to the trouble. This is achieved by providing means for generating a trigger signal corresponding to the failure when the predetermined relay is connected.

In the trigger generating section according to the present invention,
Since a terminal for a relay signal corresponding to a failure of high importance is provided in advance, when a failure occurs, a maintenance technician connects a relay signal corresponding to the failure to a predetermined terminal. Then, the work is completed only by inputting the trigger signal and a relay signal necessary for determining the cause of the failure to the data collection unit.

As described above, since the trigger signal circuit can be configured accurately in a short time, not only the labor of maintenance technicians can be significantly reduced, but also the downtime required for the operation of the elevator can be reduced. There is an effect that can be.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is an overall configuration diagram of an elevator trouble catching device according to an embodiment of the present invention. In the figure,
Reference numeral 1 denotes a control panel composed of a large number of relay groups, and 2 denotes a failure capturing device, which comprises a data collecting unit 3, a trigger signal generating unit 4, and a display 5. The data collection unit 3 includes a terminal 31 for receiving the relay signals A to O in the control panel 1, a terminal 32 for receiving the trigger signal T, and the relay signals A to
The microcomputer 33 is configured to process O and display a predetermined signal waveform on the display 5. The microcomputer 33
Is provided with a memory 34 for storing the signal.

FIG. 2 is a circuit diagram of the trigger signal generator 4. The trigger signal generation unit 4 is composed of a sequence
1 is a relay signal 10-1 required for catching a fault in the control panel 1.
01P to take in the relay signals 10-1
FIG. 3 is a functional explanatory diagram of 01P. Reference numerals 421 to 425 denote signal generation circuits for generating a trigger signal T corresponding to a predetermined failure when the failure occurs. As shown in FIG. The five items of “impossible”, “power supply system abnormality”, and “safety device operation” are selected, and relay numbers required for each failure are displayed. For example, for failures in the power supply system, relay signals 10, 102E, 102F, 99E,. 101P is required. Then, the signal generation circuit 42
Inputs 1 to 425 are the relay signals 10 to 10 shown in FIG.
They are connected to terminals T10 to T101P corresponding to 1P. The outputs of the signal generation circuits 421 to 425 are all input to the OR circuit 43, and the output of the OR circuit 43 is the trigger signal T.

The signal generating circuits 421 to 425 are all constituted by microcomputers.
Fig. 2 shows a trigger circuit diagram for detecting an abnormality in the power supply system in a relay sequence. As can be seen, the power terminals P, N
Relay contacts b, 102Eb, 102Fb, 9
9Eb ... 101Pb and the timer TM are connected in series,
When all the contacts are closed for 10 seconds, the timer TM operates and emits a trigger signal T via the contact TMa. Other circuit diagrams are omitted.

Next, the operation of this embodiment will be described.

[0014] Now, an unbootable failure has occurred, and a notification has been received from the manager. A maintenance technician rushed to the site to determine the cause of the failure, but the elevator returned to normal and the cause was unknown. Therefore, we thought that the same fault would recur, and investigated the cause using a fault capturing device. As can be seen from FIG. 4, the unstartable failure is indicated by relay signals 10, 102F.
1P is connected to terminals T10 and T102F of the trigger signal generation unit 4.
... Connect to T101P. The door closing relay 101, the door closing confirmation relay 4
0, the running detection relay 10 is connected to the terminal 31 of the data collection unit 3
Connect to and work is complete.

By doing so, it is assumed that the same failure occurs the next day and a waveform as shown in FIG. 6 is obtained. From this waveform, it was found that the car door was closed, and the traveling detection relay was not turned on even if all the doors were completely closed. As a result of examining the door closing relay 40, it was found that the relay 40 had a poor contact.

As described above, when the cause of the failure is determined by using the failure capturing device, the circuit for the trigger generation signal can be created accurately in a short time, so that the labor of the maintenance technician can be reduced. .

[0017]

As described above, according to the present invention, when investigating the cause of a failure using the failure capturing device, a trigger generation signal can be created in a short time and without erroneous wiring. Since the labor can be significantly reduced and the time for setting the trouble catching device is short, the non-operation time of the elevator can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an elevator failure capturing device according to an embodiment of the present invention.

FIG. 2 is a circuit diagram of a trigger signal generator.

FIG. 3 is an explanatory diagram of functions of a relay necessary for catching a failure.

FIG. 4 is an explanatory diagram showing types of faults and relay numbers required for trigger signals of the faults.

FIG. 5 is a circuit diagram of a trigger generation circuit for an abnormal power supply system failure.

FIG. 6 is a waveform chart obtained from the failure capturing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Control panel 3 Data collection part 4 Trigger signal generation part 5 Display 33 Microcomputer 34 Memory 41 Input terminal 421-425 Signal generation circuit

Claims (1)

[Claims] 1. The state of relay signals of an elevator composed of a plurality of relay groups is continuously and endlessly stored in a memory of a microcomputer, and the state of the memory of the memory is controlled via a trigger signal for detecting occurrence of a failure in the elevator. In an elevator failure catching device provided with a means for stopping a storage operation, a terminal for inputting a relay for generating a trigger signal corresponding to the plurality of failures is provided, and a predetermined relay corresponding to the failure is connected to this terminal. ,
An elevator failure capturing device, comprising: means for generating a trigger signal corresponding to the failure.