JPS60179900A - Enunciator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an annunciator device that notifies a failure depending on the type of failure.

[Technical background of the invention]

FIG. 1 is a block diagram of a conventional annunciator device. This annunciator device is provided, for example, to notify the occurrence of a failure at each desired position in a power generation plant. By the way, failures not limited to power generation plants include natural recovery failures and manual recovery failures. For example, taking a power generation plant as an example, a self-recovery failure is determined to be a failure when the water level in a reservoir becomes higher or lower than a preset standard water level. This means that the water level will naturally return to the standard water level over time even if no action is taken. On the other hand, a manual reset failure is, for example, when an accident occurs in the power system, the circuit breaker (MC) connected to the power system
CB) is tripped or a protective relay is activated, but these MCCB (protective relays) refer to patents that feature repairs in which an accident in the power system cannot be recovered without being repaired by an operator. Therefore, in the annunciator device, the circuit configuration for notification is determined depending on each of the natural recovery failure and manual recovery failure. Furthermore, since there are two types of notifications, a severely faulty pipe layer and a light faulty pipe layer, the circuit configuration of the annunciator device is determined depending on the types of these dense layers.

Incidentally, notification when a failure occurs is generally performed as follows. In other words, when a failure occurs, a failure alarm and its display are simultaneously issued to notify the operator, and with this notification, the operator first stops the alarm, then restores the failure location, and then displays the failure display. The display is turned off by turning off the light.

Therefore, the annunciator device should be used against spontaneous recovery failures.
After a malfunction alarm and display is performed and a shutdown operation is performed under the control, the display is configured to turn off in response to the spontaneous reversal of the malfunction. In addition, in response to a manual reset failure, the annunciator device is configured to issue a failure alarm and display, perform an operation to stop the report, allow the operator to restore the failure location, and then perform an operation to stop the failure display. do.

Therefore, the annunciator device shown in FIG. 1 determines whether the failure at the desired position to be detected is a natural recovery or manual recovery, and also determines in advance whether the failure will be reported as a heavy warning or a light warning. It is configured as follows. In FIG. 2, P is a positive bus bar, N is a negative bus bar, and bus bar P includes fault detection contacts F1 to Fn, fault display return switch LR, a contacts 1a-1rla-2 of hearing alarm detection amplification relay 1, alarm stop switch AR and time-limited return contact 2b of 7-relay relay 2
The annunciator unit (UT) is connected through the annunciator unit. Note that this connection is made by connectors CNI to CNm.

The annunciator unit TJT has failure detection contacts F1~
It accommodates a plurality of circuit boards T1 that are provided corresponding to Fn, and mounts self-holding circuits U1 to Un provided with failure detection relays XJ to Xn, respectively, and further operates a heavy alarm device BL and a light alarm device BZ. It houses a board T2 provided with a failure alarm connection circuit G for this purpose. Between the annunciator unit UT and the bus N, failure indicators L1 to Ln are connected corresponding to the self-holding circuits U1 to Un, and the failure pipe layer connection circuit G is connected to the heavy duty warning device BL and the light An alarm device BZ, an alarm detection amplification relay 1 and a flicker relay 2 are connected. Note that CN1 to CNm are connectors. In addition, in this annunciator device, the fault detection contact F1 corresponds to the fault detection position where a manual recovery fault requires a major fault alarm, and F2 corresponds to the fault detection position where a self-recovery fault requires a minor fault alarm. It is configured to do.

Here, the operation of the apparatus shown in FIG. 1 will be explained.

When the fault detection contact F1 closes due to a fault occurring at the fault setting position corresponding to this contact F1, the b contact 3b of the alarm detection amplification relay 3 and the b contact Xl of the fault detection relay X1 are closed.
Electric power is supplied from the bus P to the serious fault detection relay 5 through the series circuit with the bus P and the bell bus 4, and the relay is energized. Then, the a-contacts 5a-1 and 5a-2 of the serious fault detection relay 4 close and self-hold, and power is transmitted from the bus P to the heavy visual alarm device BL through a series circuit between the a-contact 5a-1 and the alarm stop switch AR. is supplied to the record detection amplification relay 1 and the flicker relay 2, and the heavy pipe layer device BL is activated.
, 2 are energized.

When the impersonation detection amplification relay 1 is energized, the a contact 1a-2 of this relay 1 closes, so this a contact 1a
The alarm detection amplification relay 3 connected in series to -2 operates. Then, relay 3 connected to failure detection contact F1
A contact 3a is closed, power is supplied to failure detection relay X1 through this contact 3a, and this relay X1 is operated. At the same time, the b contact 3b of the good news detection amplification relay 3 opens, so that the power supply to the serious failure detection relay 5 via the bell bus 4 is stopped.

When the failure detection relay Power is supplied from the IP, and the failure detection relay
Electric power is supplied from the bus P to the fault indicator L1 through the J bus 6 and the a contact Xla of the fault detection relay X1, thereby causing the fault indicator 5L1 to flicker.

In addition, since the failure display return switch LR and the a contact 1a-1 of the good news detection amplification relay 1 are connected in parallel, the report stop switch AR is opened to connect the serious failure detection relay 5 and the alarm detection amplification relay 1. If it is not de-energized, the flicker display of the fault indicator L1 will not go out even if the fault indicator return switch LR is opened.

In addition, when failure detection relay X is activated, its b contact
b opens and stops the power supply to the bell bus 4, so even if the alarm stop switch AR is opened and the alarm detection amplification relay 3 is de-energized and its b contact 3b is closed, the serious fault detection relay ~
5, the heavy-duty alarm device BL, the good news detection amplification relay 1, and the 7-factor relay 2 are each configured to prevent chattering.

Next, a case will be described in which failure notification by the multi-book axis device BL and the failure indicator NLI is stopped.

First, the cylinder shaft stop switch AR is opened to de-energize the serious failure detection relay 5. Then, the a contact 5 of this relay 5
Since m-1+5a-2 is opened, the operation of the writing axis device BL is stopped, and furthermore, the alarm detection amplification relay 1, the 7-point detection amplification relay 2, and the good news detection amplification relay 5 are each de-energized.

As a result, the alarm stops and the failure indicator L1- changes from a flickering display to a static lighting display.

Here, the broken cavity is repaired, and after the repair is completed, the fault display recovery switch LR is opened. Then, since the contact 1a-1 is already open, the failure detection relay XI becomes de-energized, thereby turning off the indicator L1.

On the other hand, if the fault detection contact F2 is closed, the power from the bus P passes through the buzzer bus 7 and is supplied to the light fault detection relay 8, which activates the light fault detection relay 8 and makes its a contact 8a. -1 is closed and self-holding, the light snow layer device BZ is activated, and since the a contact 8a-2 is also closed, the alarm detection amplification relay 1 and the flicker relay 2 are activated. When the alarm detection amplification relay 1 operates, its a contact 1a-2 closes and the good news detection amplification relay 3 operates.

As a result, the failure detection relay X2 operates, causing the failure indicator L2 to flicker.

When the report stop switch AR is opened to stop the snow layer, the light failure detection relay 8 becomes de-energized and its a contacts 8g-1 and 8a-2 open, so the light warning system +W
The operation of BZ is stopped, and the flicker relay 2 and report detection amplification relay 1 are de-energized. However, if the abnormality detection contact F2 remains closed even after this operation to stop the snow layer, the power is passed through the abnormality detection contact F2, the bypass prevention diode D3, and the a contact of the failure detection relay X2 to the bus line P.
Power is supplied to the display L2 from the display L2, and the display L2 displays a stationary lighting display. When the failure recovers naturally and the abnormality detection contact F2 opens, the indicator L2 turns off.

As mentioned above, in the case of a spontaneous recovery failure, a loop prevention diode D3 is installed between the failure display recovery switch F2 and the a contact of the failure detection relay X2 so that the failure detection relay X2 is energized even after the 8-signal stop operation. In addition, the a contacts of the failure detection relays X1 to Xn are connected to the bell bus 4 or the buzzer bus 7 depending on the heavy moss alarm or light damage alarm. Furthermore, display a
In order to display L1 to Ln with 7 points, a 7 points relay 2 is connected.

[8 Highlights of Background Art] In this way, conventional devices determine whether the failure detection position is a natural recovery failure or a manual recovery failure, and also determine whether the failure is to be notified as a heavy alarm or a light alarm, and whether the failure is to be notified as a heavy alarm or a light alarm, and A circuit is designed and manufactured after deciding whether to display a flicker display. therefore,
If you change whether the fault is a natural recovery failure or a manual recovery failure, if you make a mistake in determining whether it is a heavy-light warning or a light-light failure, if there is a change in the specifications of the failure, or if there is a flicker display on the display. If there is a change in specifications, the connections must be changed accordingly, requiring major wiring changes, which takes a long time.

[Purpose of the invention]

The present invention has been made based on the above-mentioned circumstances, and its objectives are to change natural recovery failures and manual recovery failures without major wiring changes, change heavy pipe layers and light detail information, and furthermore display flicker. An object of the present invention is to provide an annunciator device that can respond to changes in the presence or absence of.

[Summary of the invention]

The present invention has a first changeover switch that is changed in accordance with the type of failure and a second changeover switch that is changed in accordance with the type of warning for the failure, and the states of the first and second changeover switches are changed. An annunciator in which the notifying means issues an alarm corresponding to the type of failure based on the output of the holding means whose output is switched accordingly, and the failure is displayed as a flicker display depending on the state of a third changeover switch of the notifying means. It is a device.

[Embodiments of the invention]

Hereinafter, an embodiment of the annunciator device according to the present invention will be described with reference to FIG. Note that the same parts as in FIG. 1 are given the same reference numerals, and detailed explanation thereof will be omitted. FIG. 3 is a block diagram of the annunciator device.

Now, the device of the present invention has a first circuit in its self-holding circuit U.
and a second changeover switch SWI.

SW2 is provided, and a third changeover switch S is further provided in the line connecting the failure alarm connection circuit G and the 7-failure relay 2.
W3 is provided. To explain specifically, the a contact X1m of the failure display recovery switch LR and the abnormality detection relay X1
One switch S of the first changeover switch SW1 is connected between
A series circuit of a and a loop prevention diode D10 is connected. In addition, the abnormality detection contact F1 and the a contact X1
A series circuit of the other switch sb of the first changeover switch SWI and a loop prevention diode Dll is connected between the switch th and the switch sb. Furthermore, b contact X of abnormality detection relay X1
A series circuit including a second changeover switch SW2 and a loop prevention diode D12 is provided in a line connecting Jb to the bell bus 3 and the buzzer bus 7. Note that the self-holding circuits U2 to Un have the same circuit configuration as the self-holding circuit U1, and a failure display recovery switch LR-1 to LR-n is provided between each self-holding circuit U2 to Ur+ and the mother IP.
-7 and A contacts 1a to 2 to Za- of official gazette detection amplification relay 1
A parallel circuit with n is connected.

On the other hand, the third changeover switch SW3 connects the a-contact 8a-2 of the light failure detection relay 8 and the 7-stop relay 2, and the series circuit of the switch SW3 and the 7-stop relay 2 is connected to a good detection amplification relay. 1 in parallel connection.

Next, the operation of the apparatus configured as described above will be explained. Therefore, it is assumed that the abnormality detection position corresponding to the failure detection contact F is a manual recovery failure and requires a heavy failure snow layer. Therefore, the switch Sa of the first changeover switch SW1
is closed and switch sb is opened. Then, the second changeover switch SW2 is switched to the bell busbar 3 side.

When a failure occurs and the abnormality detection contact F1 is closed by the signal obtained by detecting this, this abnormality detection contact F 7 , B contact 3b of the corrosion detection amplification relay 3, B contact Xlb of the abnormality detection relay X1, and the diode Power is supplied from the bus P to the serious fault detection relay 5 through D12 and the bell bus 4, and the serious fault detection relay 5 operates. As a result, similar to the operation described above, the heavy snow layer device BL operates to perform heavy snow layering, and the alarm detection amplification relay 1 operates to close its a contacts 1a-2, thereby causing the gazette detection amplification relay to close. 3 operates and its a contact 3a closes. Therefore, abnormality detection relay X is operated and its a contact XJJL is closed and self-held.

However, failure indicator L1 shows 7 failure relays 2 from bus P.
time-limited return contact 2b, Lanzo mother m9 and a contact Xla
Power is supplied through the fault indicator L1, and the fault indicator L1 lights up.

Here, if the third changeover switch SW3 is open, the failure indicator L1 will remain lit, and if the third changeover switch SW3 is closed, the failure indication WL1 will flicker because the flicker relay 2 is activated. It will be displayed.

Next, the operator presses and opens the alarm stop switch AR, and the serious failure detection relay 5 becomes de-energized and its a contacts 5th-1+5a-2 open, so the operation of the heavy alarm device BL' is stopped. . At the same time, the alarm detection amplification relay 1 becomes de-energized and its a contacts 1a-1+1a-2 open.
As a result, the alarm detection amplification relay 3 becomes de-energized and its a contact 3a opens. Furthermore, if the third changeover switch SW3 is closed, the flicker relay 2 will also be de-energized, so
The failure indicator L1 changes from a flickering display to a static lighting display.

After the failure is repaired, when the failure display return switch LR is pressed and opened, the failure detection relay do.

Next, it is assumed that the abnormality detection position corresponding to the failure detection contact F1 is a self-recovery failure and requires a severe failure snow layer. When the abnormality detection contact F is closed, the serious failure detection relay 5 operates in the same manner as described above, power is supplied to the lightning warning device BL, and the heavy warning device BL is activated. Then, the match detection amplification relay 1 operates, the δ layer detection amplification relay 3 operates, and the abnormality detection relay X operates to maintain itself. Then, the failure indicator L1 lights up, and the failure is notified together with the heavy snow layer device BL.

Note that the failure indicator L is connected to the third changeover switch 5W12.
is closed and flickering.

When the alarm stop switch AR is pressed to perform the alarm stop operation, the operation of the lightning alarm device BL is stopped in the same manner as described above, and the failure indicator L1 changes from a flickering display to a static lighting display.

Here, the first changeover switch SW1 is changed to open the switch Sa and close the switch sb. After this switching operation, if the failure point has not recovered and the abnormality detection contact F1 is closed, this abnormality detection contact F, switch sb, wraparound prevention diode Dll, and abnormality detection relay XI (
Power is supplied to the abnormality detection relay X1 through the Da contact X1a and the abnormality detection relay X1 is excited, and the abnormality detection relay X1 maintains itself. As a result, the failure indicator L1 continues to display static lighting. Then, when the failure spontaneously recovers and the failure detection contact F1 opens, the abnormality detection relay X1 becomes de-energized, and therefore the failure indicator L1 goes out.

Further, when the abnormality detection position corresponding to the failure detection contact F1 requires a light failure pipe layer, the second changeover switch S2 is switched to the buzzer motherboard m7 side.

As a result, when the fault detection contact F1 closes, power is supplied to the light fault detection relay 8 through the power bus 7, and the light pipe layer device BZ is activated.

As described above, in the device of the present invention, the holding circuits U1 to Un are provided with a first changeover switch SWI for a natural return failure and a manual return failure, and a second changeover switch SW2 for a heavy snow layer and a light death alarm, and further Since a third changeover switch SW3 is provided for flicker display/non-flicker display, no matter whether the abnormality detection position corresponding to the failure detection contacts F1 to FH is a natural recovery failure or a manual recovery failure, the operation corresponding to the failure can be performed. In addition, whether the failure is reported as a severe warning or a light θ warning, it is possible to respond promptly. Also,
The display of the failure indicators L1 to Ln can also be changed to a flickering display or a static lighting display by simply operating the third changeover switch. Therefore, there is no need to significantly change the circuit configuration even if there are changes in the natural recovery failure and manual recovery failure, changes in the sodium bicarbonate alarm and light alarm, and changes in the presence or absence of the 7-litre force display, as in the conventional case. As long as the number of failure detection positions is known in advance, the device can be designed even if the conditions of the circuit configuration, such as whether it is a natural recovery failure or a manual recovery failure, are not determined. As a result, it can be designed and manufactured at low cost and in a short period of time. In addition, annunciator unit U
Since all the circuit configurations in T are the same, it is also possible to make the annunciator unit UT into a single block.

Note that the present invention is not limited to the above-mentioned embodiment, and can be modified without departing from the spirit thereof.

〔Effect of the invention〕

According to the present invention, the holding means is provided with a first changeover switch that is changed over depending on the type of failure and a second changeover switch that is changed over depending on the type of alarm, and furthermore, the failure is displayed as a flicker display. Since the third changeover switch is installed in the notification means, it is possible to change natural recovery failures and manual recovery failures, and to display 7-point power indications for heavy snow layers and light pipe layers, etc., without making major wiring changes. It is possible to provide an annunciator device that can respond to changes in the presence or absence of.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional annunciator device, and FIG. 2 is a block diagram showing an embodiment of the annunciator device according to the present invention. F1~Fn...Failure detection contact, LR...Failure recovery switch, AR...Gazette stop switch, UT...Annunciator unit, X1~Xn...Failure detection relay, U1~Un-...Self Holding circuit, BL...heavy pipe layer device, BZ...light pipe layer device, G...failure detail connection circuit, T1. T2... Board, L1-Ln... Failure indicator, CNJ-CNm... Connection connector, 1... Snow layer detection amplification relay, 2... Flicker relay, 3... Alarm detection amplification relay , 4...Bell bus, 5...Serious fault detection relay, 6...7 Ritsuka path, 7...Buzzer bus,
8... Light fault detection relay, 9... Lamp bus bar, SW
l...first changeover switch, Sa, Sb...switch, SW2...second changeover switch, SW3...
Third changeover switch, Dlo-D12... wraparound prevention diode.

Claims (1)

[Claims] a first changeover switch that is switched in accordance with the type of failure at a failure detection position corresponding to the failure detection contact; and a second changeover switch that is switched in response to the type of detailed report for the failure; holding means for responsively holding the display on the fault indicator and switching the output according to the states of the first and second changeover switches; 3 changeover switch? and a notification means for giving a notification corresponding to the output of the holding means and for displaying a 7-litre display on the failure indicator according to the state of the third changeover switch. An annunciator device.