JPH0237107Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a failure display device that receives a large number of failure signals and displays failures for each group.

In centralized monitoring and control systems such as remote monitoring and control equipment and direct monitoring and control equipment for various plants, failure monitoring of each part is one way to monitor the status of each part of the plant, and this failure monitoring uses a CRT to display details of individual failures. In addition to regular monitoring, it is common for the multiple annunciator processing device to directly display the information on a display such as a monitoring panel for backup purposes. A conventional fault display device consisting of a multiple annunciator processing device and an indicator receives multiple fault display signals obtained from monitoring equipment and equipment monitoring means as operation inputs of on/off contacts to the multiple annunciator processing device. In response to this, the display elements provided for each failure item on the display will flicker, and a common alarm (bell, bell, etc.) will be installed for all failure items.
It was a sound display using a buzzer, chime, etc.). This direct display method had economical problems as the installation space for the backup display became larger as the system became larger. Therefore, a system has been adopted for backup display devices that displays failures by providing optical display elements for each group of equipment, such as those related to power receiving and substations, pumps, and construction incidental equipment. .

FIG. 1 shows a conventional group display type failure display device. Fault indication signals _A1 to _A6 , which serve as operation inputs for the on/off contacts, are taken into the multiple annunciator processing device 1, and the fault location is determined by the signals alone or in combination with other signals, and the fault locations are identified in groups. Output contact for backup display distributed by 1 ₁
1 ₃ , 1 ₄ to 1 ₆ are connected in parallel and inserted into the lighting circuits of the respective group abnormality indicator lamps 2 ₁ and 2 ₂ of the backup display 2. The annunciator processing device 1 has backup display output contacts 1 ₇ , 1 ₈ ,
1 ₉ , and the output contacts 1 ₇ and 1 ₉ form a drive circuit for a bell 2 ₃ , a buzzer 2 ₄ , and a chime 2 ₅ as alarm indicators common to the group of backup indicators 2.

In this configuration, when any one of the failure indication signals A ₁ to A ₆ is given, the annunciator processing device 1 periodically turns on and off one of the contacts 1 ₁ to 1 ₆ of the corresponding group. One of the lamps 2 ₁ , 2 ₂ of the backup indicator 2 connected to the contacts is flickered on, and at least one of the contacts 1 ₇ to 1 ₉ is turned on to cause an alarm display from a buzzer 2 ₄ or the like. Thereafter, the flickering lamp is controlled to be lit continuously by being given an alarm stop signal S by a supervisor or the like.

In the above-mentioned group display method, if any one of the failure indication signals in the same group is continuously given, even if the alarm stop signal S is given, the lamps of the group remain lit continuously, so Even if another fault indication signal is given, the corresponding lamp flicker does not appear, and the supervisor cannot confirm the fault group in response to the alarm display.

The present invention solves the conventional problems by providing an output element that is commonly connected in series to each output element that drives the optical display element of the annunciator processing device and operates intermittently in conjunction with the drive output of the alarm indicator. It is an object of the present invention to provide a fault display device using a group display method that eliminates the problem.

FIG. 2 is a circuit diagram showing an embodiment of the present invention. The difference between this figure and FIG. 1 is that the processing device 1 has output contacts 1 for driving alarm indicators 2 ₃ to 2 ₅ .
Output contacts ₁₁₀ to ₁₁₂ linked to output terminals ₇ to ₁₉ are connected in parallel, and contacts ₁₁₀ to 1 are connected to the backup display 2.
A flicker relay ₂₆ that operates intermittently when any one of _{the relays 12} is turned on is provided, and the normally closed output contact _26C of the relay ₂₆ is provided.
The output contacts 1 ₁ to 1 ₆ of the processing device 1 are commonly connected in series to the power supply circuit, and each output contact 1 ₁ to 1 ₆ is omitted from flicker operation.

In such a configuration, the fault indication signals A ₁ to _{A 6}
In response to any one input, the annunciator processing device 1 continuously turns on one of the output contacts belonging to the group corresponding to the input, and also turns one of the alarm display output contacts 1 ₇ to _{1 9} on. One of the contacts 1 ₁₀ to 1 ₁₂ is turned on in conjunction with the on operation and the on operation contact. As a result, alarms 2 ₃ to 2 ₅
One of them rings and flicker relay 2
₆ connects contact 2 _6C and flashes the lamp of the corresponding group to display the failure group. Thereafter, when the supervisor confirms the failure group and the alarm stop signal 8 is given, the ON contacts among contacts 1 ₇ - 1 ₉ and 1 ₁₀ - 1 ₁₂ are opened (reset) and the alarm 2 _{3 is} activated. The operating ones of 25 to ₂₅ stop ringing, and the flicker relay ₂₆ also stops operating.
At this time, contact 2 _6C closes and output contact 1 ₁ ~
1 to ₆ that are in operation continue to remain lit from blinking on the fault group lighting table until the fault indication signals A ₁ to A ₆ are removed.

In the lamp lighting state of such a failure group, when another failure indication signal is given, the processing device 1 turns on a common set of contacts 1 ₇ to 1 ₁₂ and turns on one of the alarms 2 ₃ to _{2 5} . One of the lamps is made to sound, and the flickering relay ₂₆ is operated to cause the corresponding group of lamps ₂₁ and ₂₂ to blink again. At this time, even though the first and second failure indication signals belong to the same group, the light indicator of the group changes from continuous lighting to blinking to blink to indicate which group the second failure indication signal belongs to. .

Therefore, according to the present invention, in a group display in which a plurality of failure signals are received, the optical display elements of a predetermined group are selectively turned on, and one alarm display is made in common for all the failure signals, the failure indication signal is At the beginning of the reception, the light display of the corresponding group will blink, and an alarm stop signal will be given.When the alarm display stops, the light display will change from blinking to continuous lighting as long as a fault display signal is given. Even when multiple display signals are applied, the optical display element flickers each time, which has the effect of ensuring easy identification by the observer.

In addition, the present invention controls the continuous lighting of the optical display element using the fault indication output, and has a configuration in which the output element that obtains the intermittent operation output in conjunction with the driving of the alarm indicator is commonly connected in series to the optical display element, so that the blinking signal is There is almost no need for contact amplification, and even when the number of failure indications increases, the circuit configuration does not become complicated.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a conventional failure indicating device, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Multiple annunciator processing device, 2...Backup display, ₁₁ ,..., ₁₁₂ ...Output contacts, ₂₁ , ₂₂ ...Lamp, ₂₃ ...Bell, ₂₄ ...
Buzzer, 2 ₅ ...Chain, 2 ₆ ...Flicker relay, 2 _6C ...Relay contact.

Claims (1)

[Scope of utility model registration request] An alarm indicator that receives various fault signals from the monitored system, divides the fault display outputs corresponding to the fault display signals into groups, flashes a light display element provided corresponding to each group, and is common to all fault display signals. In a fault display device that controls the light display element to continuously light up and stops driving the alarm display when an alarm stop signal is given, the fault display output controls the continuous light display of the light display element; A failure display device characterized in that an output element that provides an intermittent operation output in conjunction with the driving of the alarm indicator is commonly connected in series to the optical display element.