JP2636461B2 - How to check the operation of the control relay - Google Patents

Description

The present invention relates to a method for confirming the operation of a control relay. More specifically, the present invention relates to an electric network simulator for an electric power system or the like, and more particularly, to an electric network simulator for various electric devices constituting an electric network. The present invention relates to a method of confirming the operation of a control relay for arbitrarily and automatically connecting components of a circuit element via contacts of the control relay.

(Prior Art) The inventor of the present invention has previously disclosed in Japanese Patent Application No. 63-7829 a connection information indicating a connection branch point of an electric network to be simulated and connection information indicating a circuit element constituting the electric network. An automatic connection control device that determines a connection point of each component having an equivalent function corresponding to the circuit element and outputs the determined connection point as a control signal, and a matrix having a bus bar to which each component is connected at one end. An automatic connection system for an electric network simulator, comprising: an automatic connection matrix including a plurality of buses, wherein the control signal selectively connects intersections of the buses to connect the components to each other.

 The outline of the automatic connection system will be described below.

The overall configuration is as shown in FIG. 4. In FIG. 4, reference numeral 10 'denotes an automatic connection control device (hereinafter referred to as a control device at the end), reference numeral 20 denotes an automatic connection matrix (hereinafter, simply referred to as a matrix), Is a component, and 40 is a cable. Here, the matrix 20 is configured as shown in FIG. 5, and a plurality of components 30 are connected to one of the buses X and Y in advance.

In order to realize an electric circuit network as shown in FIG. 6, for example, the types and matrices of the necessary components 30 are used.
When connection information comprising a combination with a node indicating a connection branch point in 20 is input to the control device 10 ', the control device 10'
Outputs a control signal to a control relay corresponding to a predetermined connection point between the buses.

These control signals are supplied to the drive circuit DO as shown in FIG.
Given 1～DOn, corresponding control relay one-to-one to those of the drive circuit DO1～DOn, for example, the control relay RYx ₁ y ₁ ~RYx ₃
Close contact of the control relay by causing a y ₃ selectively operated, thereby generating line X1 to X3, so as to realize a sixth diagram of the electrical network by selectively connecting an intersection Y1~Y3 Has become.

(Problems to be Solved by the Invention) In the conventional system described above, in order to confirm the operation of the control relay, as shown in FIG. 8, one-to-one corresponding input circuits DI1 to DIn are connected to the contacts of the control relay. The output signal is input to the control device 10 '. For this reason, the same number of input circuits as control relays are required,
As a result, there has been a problem that the size of the apparatus is increased and the cost is increased.

SUMMARY OF THE INVENTION The present invention has been proposed to solve the above problems, and an object of the present invention is to reduce the number of input circuits for an operation confirmation signal of a control relay to reduce the size of the apparatus and reduce the cost. An object of the present invention is to provide a method for confirming the operation of a relay.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a method for connecting a plurality of components having equivalent functions of a plurality of circuit elements constituting an electric circuit network to a plurality of control relay contacts. In the method for confirming the operation of the control relay in a system capable of automatically configuring the electric network by mutually interconnecting via a plurality of drive signals generated to operate the control relay, An operation of a control relay driven by the plurality of drive signals is performed by detecting a logical product of one of the drive signals and the contacts of all control relays for which the drive signal is a necessary condition for driving. And an input circuit of the contact signal for detecting the logical product is shared by a plurality of control relays.

(Operation) In the present invention, for example, when the control relay is driven by a combination of two types of drive signals, the logical product of one drive signal and the contact signals of all the control relays that can be driven by this drive signal is calculated. By detecting, the operation of the intended control relay is confirmed. In this case, the number of input circuits of contact signals for detecting the logical product may be prepared by the number corresponding to the number of drive signal sets, and a plurality of control relays can be provided without providing a contact signal input circuit for each control relay. , The operation of a large number of control relays can be confirmed with a small number of parts.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

First, FIG. 1 shows a connection state of a drive circuit of a control relay which is a premise of this embodiment, and is a circuit diagram according to a "control relay drive system" filed at the same time. In the figure, reference numeral 10 denotes control signals SX1 to SX3, SY1 to
This is a control device that outputs SY3.
For example, three control buses CX1 to CX3 and CY1 to CY3 are connected. These control bus CX1～CX3, driving circuit DOx ₁ ~DOx ₃ in CY1~CY3, DOy ₁ ~DOy ₃ are provided respectively at intersections of the control bus CX1, CY1 control relay RYx ₁ y _1,
The control relay RYx ₁ y ₂ is at the intersection of the control buses CX1 and CY2, and the control relay RYx ₁ y ₃ is at the intersection of the control buses CX1 and CY3.
X2, the intersection of CY1 control relay RYx ₂ y _1, control bus CX2, CY
The control relay RYx ₂ y ₂ is at the intersection of ₂ , the control relay RYx ₂ y ₃ is at the intersection of the control buses CX2 and CY3, the control relay RYx ₃ y ₁ is at the intersection of the control buses CX3 and CY1, and the control bus CX3. , the intersection of the CY2 control relay RYx ₃ y _2, the intersection of the control bus CX3, CY3 control relay RYx ₃ y ₃ are connected.

Although not shown, the control relay RYx ₁ y ₁ ~RY
The contact point of x ₃ y ₃ is a matrix bus X1 as shown in FIG.
To X3 and Y1 to Y3.

According Thus the arrangement of Figure 1, control signals SX1, by SY1, the drive circuit DOx ₁ and DOY ₁ and the control relay RYx ₁ y ₁ when issuing the drive signal and a drive circuit DOx ₁ DOY ₂ And when they issue a drive signal, the control relay RYx ₁ y ₂ and so on,
Control signal SX1~SX3 to the drive circuit DOx ₁ ~DOx ₃ from the control signal to the drive circuit DOy ₁ ~DOy ₃ (driving circuit DOx ₁ drive signal from ~DOx ₃₎ SY1~SY3 (driving circuit DOy ₁ ~DOy ₃ Drive signals), all the control relays can be driven. Therefore, it is not necessary to provide the same number of drive circuits as the control relays as shown in FIG. Has become possible.

The present invention is directed to a control relay that is driven by a combination of two types of drive signals as described above, and one drive signal and contact signals of all control relays that can be driven by this drive signal. The operation of the control relay is to be confirmed by detecting the logical product.

That is, FIG. 2 shows an embodiment of the present invention.
FIG. 2 is a connection diagram of a drive circuit, a control relay, a contact signal input circuit, and the like. In the figure, DOy ₁ ~DOy ₃ is a drive circuit control signal SY1~SY3 is applied from the controller 10 as described above, the drive circuit DOY ₁ of which on the output side ～DOy ₃
RYx ₁ y _{1
~RYx 3 y 1, RYx 1 y} 2 is _{~RYx 3 y 2, RYx 1 y} 3 ~RYx 3 y 3 are connected in parallel. One end of each of the contacts RYx ₁ y ₁ , RYx ₁ y ₂ , RYx ₁ y ₃ is connected to the input circuit DIx ₁ , and each end of the contacts RYx ₂ y ₁ , RYx ₂ y ₂ , RYx ₂ y ₃ is connected to the input circuit DIx ₂ , each one end of the contact _{RYx 3 y 1, RYx 3 y} 2, RYx 3 y 3 are connected to the input circuit DIx _3. Furthermore,
Output signals of the input circuit DIx ₁ ~DIx ₃ is inputted to the controller 10 as a contact signal TX1 to TX3.

Hereinafter, the operation check of the control relay RYx ₁ y ₁ as an example to explain the operation of this embodiment.

First, in FIG. 1, the control device 10 sends a drive circuit DOx ₁
And the DOY ₁ and the control signal SX1, SY1 are given, these drive circuits DOx _1, control relay by a drive signal outputted from DOy ₁ RYx ₁ y ₁ is driven, its contacts are closed.

In this case, the circuit configuration shown in FIG. 2 is inside the controller 10, as in FIG. 3, and it outputs a drive signal according to the control signal SY1 or driving circuit DOY _1, control relay
By inputting the input signal to the input circuit DIx ₁ by the contact closing of RYx ₁ y ₁ and obtaining the contact signal TX1, the logical AND
It determines that the operation of the control relay RYx ₁ y ₁ is normal. Here, the operation checking means shown in FIG.
It can be realized by software or hardware within 10.

Further, for example, in the case of operation confirmation of the control relay RYx ₂ y ₂ is a control signal SY1 in the above description SY2, control relay RY
x ₁ y ₁ a RYx ₂ y _2, the input circuit DIx ₁ to be able to explain the operation by replacing the DIx _2, the drive signal and the contact signal by the control signal SY2 or driving circuit DOY ₂ as shown in FIG. 3 the logical product of the TX2 is capable of performing operation check of the control relay RYx ₂ y _2.

In addition, the operation at the time of confirming the operation of the other control relays is substantially the same as the above-described case, and thus the detailed description is omitted.

In the present embodiment, as is clear from FIG. 2, the input circuits DI _X1 , DI _X2 , DI _X3 for contact signals are connected to nine control relays RY _X1Y1.
~ RY _X3Y3 , and these input circuits DI _X1 and D _X1
By inputting a contact signal TX1 output from _{I X2, DI X3, TX2,} TX3 , respectively driving signals SY1, SY2, each to one of the AND gates along with SY3, 9 pieces of operation of the control relay RY _X1Y1 to Ry _X3Y3 Confirmation becomes possible. Therefore, the number of input circuits for contact signals can be significantly reduced.

(Effects of the Invention) As described above, according to the present invention, a control relay is sequentially driven by a combination of drive signals respectively output from a plurality of drive circuits, and the drive signal and a plurality of drives that can be driven by the drive signal. Since the operation of the control relay is checked by obtaining the logical product of the contact signals of the control relays and the input circuit of the contact signal for detecting the logical product is shared by a plurality of control relays, the input circuit is What is necessary is just to prepare the number of sets of drive signals.

Therefore, the number of the input circuits can be significantly reduced as compared with the number of the control relays, and there is an effect that the device can be downsized and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a connection diagram of a drive circuit and a control relay, etc., showing a drive method of a control relay as a premise of the present invention, and FIG. 2 is a drive circuit, a control relay, and an input circuit to which an embodiment of the present invention is applied. FIG. 3 is a diagram showing an example of the operation checking means, FIGS. 4 to 8 are for explaining the prior art, FIG. 4 is a configuration diagram of the entire automatic connection system, FIG. 5
The figure is an illustration of the automatic connection matrix and components,
FIG. 6 is a connection diagram showing an example of an electric circuit network for performing simulation, FIG. 7 is a connection diagram of a drive circuit, a control relay, and the like;
FIG. 8 is a connection diagram of an input circuit for operation confirmation, a control relay contact, and the like. 10 ...... controller CX1~CX3, CY1~CY3 ...... control bus _{DOx 1 ~DOx 3, DOy 1 ~DOy} 3 ...... driving circuit DIx ₁ ~DIx ₃ ...... Input circuit _{RYx 1 y 1 ~RYx 3 y 3} ... ... Control relay

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Reiji Takeuchi 1-1, Tanabe Nitta, Kawasaki-ku, Kawasaki, Kanagawa Prefecture Inside Fuji Electric Co., Ltd. (72) Inventor Hirotoshi Sato 1, Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture No. 1 Inside Fuji Electric Co., Ltd. (56) References JP-A-1-186117 (JP, A) JP-A-59-42742 (JP, A) JP-A-50-12521 (JP, A) JP-A-63 −43516 (JP, A)

Claims (1)

(57) [Claims] A plurality of components each having equivalent functions of a plurality of circuit elements constituting an electric network,
In a method for confirming the operation of the control relay in a system capable of automatically configuring the electric circuit network by mutually connecting via the contacts of a plurality of control relays, a plurality of drive signals combined to operate the control relay And detects the logical product of one of these drive signals and the contact signals of all the control relays for which the drive signal is a necessary condition for drive, and A method for confirming the operation of a control relay, wherein the operation of the driven control relay is confirmed, and an input circuit of the contact signal for detecting the logical product is shared by a plurality of control relays.