JPH0648609B2 - Breaker operation monitoring function unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a breaker operation monitoring functional unit for giving an operation status signal of a breaker to an external monitoring device using a personal computer or the like in order to monitor the operation of a breaker. It is a thing.

[Prior Art] In a building such as a building, a distribution board is installed at several places on each floor, and several breakers are usually installed in the distribution board.

[Problems to be Solved by the Invention] In such a case, even if a breaker in a certain place trips due to overcurrent and leakage, it is possible to immediately know which breaker of which distribution board is the tripped breaker. However, there was a problem that the breakers in the distribution boards on all floors had to be inspected and turned around.

The invention described in claim 1 is made in view of the above-mentioned problems, and the purpose thereof is to make it possible to centrally monitor the operation state of the breaker and to easily cope with the expansion of the breaker. To provide a functional unit for operation monitoring.

In addition to the above object, the invention according to claim 2 is a ready-made I / O.
An object of the present invention is to provide a breaker operation monitoring functional unit that can use the O terminal.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the invention according to claim 1
An I / O terminal unit for connecting a breaker operation status signal, an address setting unit for setting an individual address, a connection connector for connecting an external monitoring device, and an extension connector connected in parallel with the connection connector, And a circuit section for transferring an operation status signal input through the I / O terminal section to the external monitoring apparatus when the address signal sent from the external monitoring apparatus matches the address set by the address setting section. It is a thing.

According to a second aspect of the present invention, the address setting section, the connection connector, the extension connector, and the circuit section are built in a repeater independent of the I / O terminal section. The I / O terminal is connected by a relay cable.

[Operation] The breaker operation monitoring functional unit of the present invention is an I / O.
An operation status signal from an operation status signal output means attached to the breaker is connected to the terminal section, an address is set by the address setting section, and an external monitoring device such as a personal computer is connected to the connection connector. As a result, when the calling address from the external monitoring device matches the set address, the operation status signal of the breaker fetched from the I / O terminal unit is transferred to the external monitoring device, and this external monitoring device responds to this operating status signal. The operation status of the breaker can be displayed on a display device or the like.

If you want to connect a breaker operation monitoring function unit for expansion, simply connect the connector of the expansion breaker operation monitoring function unit to the expansion connector to monitor the expansion breaker operation for the external monitoring device. The functional units can be connected in parallel.

It is possible to use an off-the-shelf I / O unit used for a sequencer or the like as the I / O unit section simply by making the I / O unit section independent.

[Examples] The present invention will be described below with reference to Examples.

FIG. 1 shows a perspective view of an embodiment of the present invention, which is composed of an AC signal input I / O terminal portion 1 and a repeater 2 which are divided into two parts.

This relay 2 is provided with mounting holes 8 at two diagonal positions of the body 2a so that it can be mounted on a board or the like. Further, a locking groove 3 for detachably attaching to the DIN rail is provided on the back surface of the body 2a, and an operating lever 4 for detaching operation is provided so that it can also be attached to the DIN rail.

A relay connector 5 for connecting the I / O terminal portion 1 and a connection connector 6 for connecting to a personal computer (hereinafter abbreviated as personal computer) PC which is an external monitoring device are provided in the recesses at the upper ends of the body 2a, and the central portion Lid 7 on top,
Additional connectors 9, 9 that are exposed to the outside by removing 7 are installed. Further, a dip switch SW forming an address setting unit is provided on the side of the body 2a.

FIG. 2 shows a circuit incorporated in the repeater 2. The connection connector 6, the extension connectors 9, 9 and the relay connector 5 are 20P connectors, which are electrically connected in parallel to each other. The pins of the connector 6 are connected to internal lines for sending data to the personal computer PC side, and the internal lines are connected to the data output terminals SO of the data selectors 10a and 10b.

The ~ pins of the connector 6 are connected to the data select signal sent from the personal computer PC side, and are connected to the select terminals A, B, C of the data selectors 10a, 10b via the internal lines. Of connector 6,
The 7 pins of are connected to the 7-bit address signal from the personal computer PC, and the signal of each bit is input to the exclusive ORs 11 _{1 to} 11 ₇ , and these exclusive OR 11
₁ to 11 ₇ DIP switch S which is the other input of
It is adapted to be compared with the setting signal from W. The control signal of the data selectors 10a and 10b from the personal computer PC is connected to the pin of the connector 6. The and pins of the connector 6 are connected to the power source from the personal computer PC and are connected in parallel to the capacitors C ₁ and C ₂ provided in the repeater 2. It should be noted that the pins ~ of the connector 6 are not particularly used.

Each data selector 10a, 10b has a DIS terminal, INH
Terminals both become the operating state when the "L", the select terminal A, B, by a combination of the data select signal to be input and C, the data by selecting one bit in the 8-bit data terminal D ₀ to D ₇ The data input to the terminal is output from the data output terminal SO.

The pins ~ of the relay connector 5 are connected to the data terminals D _{0 to} D ₈ of the data selector 10a, and the relay connector 5 is connected to the data terminals D _{0 to} D ₈ of the data selector 10b.
Connected to. The pin of the relay connector 5 is connected to the Vcc line, and the pin is connected to the ground line.

The outputs of the exclusive ORs 11 _{1 to} 11 ₄ are NOR gates 12.
The output of the exclusive ORs 11 _{5 to} 11 ₇ is the NOR gate 1 in a.
2b, respectively, and the output of each NOR gate 12a, 12b is connected to both NAND gates 13a, 13b.
The NAND gate 13a inputs the outputs of the NOR gates 12a and 12b and the inverted signal of the control signal from the personal computer PC, performs a NAND operation, inputs the output to the DIS terminal of the data selector 10a, and the NAND gate 13b outputs the NOR gates 12a and 12a. The output of 12b and the control signal from the personal computer PC are input to perform a NAND operation, and the output is input to the DIS terminal of the data selector 10b.

The NAND gate 13c is a gate circuit for inverting the control signal. The resistor arrays Ra, Rc and Rb are pull-up resistors.

FIG. 3 shows a printed circuit board P _{1 on} which the circuit components of the circuit of FIG. 2 are mounted, and this printed circuit board P ₁ is built in the body 2 a of the repeater 2. Nand gate 13a ~
13c is a single IC element 13 and exclusive OR 11 ₁ to
11 ₇ The two IC elements 11, the NOR gates 12a, 1
As for 2b, the ones incorporated in one IC element 12 are used.

The I / O terminal unit 1 has a mounting hole 14 for screw fixing to the panel, a locking groove 15 for locking to the DIN rail, and an operation lever 16 for attaching / detaching to / from the DIN rail, like the repeater 2. In addition, 16 pairs of signal terminals T _1a , T _1b ~ are provided on the upper side of one side of the terminal body 17 so that 16 operating points of external signal breaker operating signals can be connected.
T _16a and T _16b, and a terminal portion 14 in which at least a ground terminal T _G and a power supply terminal T _v are arranged are provided, and the signal terminals T _1a and T ₁ are provided above the terminal body 17 so as to be parallel to the terminal portion 14. There is provided a relay housing 18 in which ₁₆ solid relays Ry _{1 to} Ry ₁₆ are detachably arranged corresponding to _{1b to} T _16a and T _16b . Further, in the concave portion on the upper end of one end, the relay connector 5 of the repeater 2
A connector 20 for connecting the plug 19b at the other end of the 20-core flat cable 19 to which 9a is connected is provided. The signal terminals T _1a , T _{1b to} T _16a , T are provided on the upper surface of the terminal main body 17 between the relay housing portion 18 and the terminal portion 14.
_The light emitting diodes D _{1 to} D _{16 that} are turned on when the “H” operation status signal is input to _16b are exposed, and the light emitting diode D _{0 that} is turned on when power is supplied is also exposed. . The terminal portion 14 is covered with a transparent cover 25.

Solid relays Ry _{1 to} Ry ₁₆ are corresponding signal terminals T
_{1a, T} 1b _{through T 16a,} are driven by the operation condition signal to be input to the T _16b, on which corresponding to the drive, and outputs as the operation status signal to read the off signal to the personal computer PC .

FIG. 4 shows a circuit diagram of the I / O terminal section 1.
The connector 20 is provided with connection pins of ~ corresponding to the pins of ~ of the relay connector 5, and the pins of ,,
A pin for connecting the power supply Vcc supplied from the device, and the light emitting diode D ₀ for indicating the power supply, the current limiting resistor R _0, and the diode between this pin and the connecting pin corresponding to the pin of the ground line of the relay connector 5. The series circuit of d ₀ is connected.

Also, the connection pins of ~, ~ are those of the relay connector 5 ~.
Corresponding to the pins of ~, ~, respectively ~, ~
The connection terminals of the relay sockets 21 _{1 to} 21 ₁₆ to which the outputs of the solid state relays Ry _{1 to} Ry ₁₆ are connected are connected between the connection pin of 1 and the connection pin for grounding. The relay sockets 21 _{1 to} 21 ₁₆ are sockets for detachably connecting the solid state relays Ry _{1 to} Ry _16, and are connection terminals for connecting the drive terminals of the solid state relays 21 _{1 to} 21 ₁₆ in addition to the above-mentioned connection terminals. And corresponding signal terminals T _1a ,
T _{1b to} T _16a and T _16b are connected. Each of the signal terminals T _1a , T _{1b to} T _16a and T _16b has a light emitting diode D _{1 to} D ₁₆ , a diode d _{1 to} d ₁₆ and a resistor R _1.
To R ₁₆ are connected in parallel with a series circuit, and the surge absorbing elements Z _{1 to} Z ₁₆ are connected in parallel.

Figure 5 (a) ~ (c) is a diagram showing a state of mounting the circuit on the printed circuit board _{P 2,} in the figure _l 1 _{to l 16} is a jumper wire.

When the solid state relays Ry _{1 to} Ry ₁₆ are removed from the relay housing 18, the bottoms of the relay bodies are lifted by rotating the removal levers 22 _{1 to} 22 _{16 which} are rotatably mounted on the terminal body 17. Makes it easier to do.

Thus, the functional unit of the present invention is constructed by connecting the repeater 2 to the I / O unit section 1 through the relay cable 19, and for example, as shown in FIG.
Install on each floor so as to correspond to the distribution board installed in F. The bus of a personal computer PC, which is an external monitoring device, is connected to the connection connector 6 of the repeater 2 of one of the functional units via the connection cable 24, and other connectors are added to the extension connectors 9 and 9 of the repeater 2. The connection connector 6 of the repeater 2 of the functional unit is connected using the extension cable 23. Therefore, the repeaters 2 are connected in parallel when viewed from the personal computer PC. I / O on each floor 1F-3F
In the unit part 1, the operation status signal from the breaker is connected to the signal terminals T _1a , T _{1b to} T _16a , T _16b of the terminal part 14 by the signal line L. In addition, an individual address is set for each by the dip switch SW of the address setting section of each repeater 2.

When the system configured as described above is used, the address signal of the repeater 2 is sequentially sent from the personal computer PC, and the control signal for selecting the data selector 10a or 10b in the repeater 2 is "L" or "L". Then, a select signal for selecting the data corresponding to the breaker whose operating status is to be set is sent via the connection cable 24.

In the repeater 2, if the set addresses match, the exclusive OR 11
₁ from to 11 ₇ is output is "L", the NOR gate 12a,
"H" is output from 12b.

Therefore, the NAND gates 13a and 13b output "L" when the remaining inputs are "H" to set the corresponding data selectors 10a and 10b to the operable state. Therefore, when the control signal is "L", it is inverted by the NAND gate 13c, so that the data selector 10a becomes operable, and when it is "H", the data selector 10b becomes operable. Then, by sending the selector signal, the operation status signal corresponding to the predetermined breaker can be selected and taken into the personal computer PC.

When the corresponding breaker operates and the operation status signal is "H", the corresponding solid state relay R
The connection line becomes "L" because y is on.
On the contrary, when the operation status signal from the breaker is "L", that is, when the breaker is not operating, the connection line is pulled up in the repeater 2 and thus becomes "H". In this way, the operating state of the breaker selected by the signal sent through the data selector 10a or the data selector 10b can be known on the personal computer PC side. For example, if the breaker operating state is displayed on the monitor of the personal computer PC side. Easy to grasp.

In the above embodiment, the repeater 2 and the I / O terminal portion 1 are separate bodies, but as shown in FIG. 7, each circuit portion may be mounted on the common unit body 26. In this case, by mounting the circuit components on a single printed circuit board, a connector for connecting the repeater 2 and the I / O terminal unit 1 is unnecessary, and a connection cable is also unnecessary. In addition, 27 is an operation lever for attaching to the DIN rail, 2
Reference numeral 8 is a locking groove.

EFFECTS OF THE INVENTION The present invention has an I / O terminal unit for connecting an operation status signal of a breaker, an address setting unit for setting an individual address, a connection connector for connecting an external monitoring device, and a parallel connection connector. I / O when the connected extension connector and the address signal sent from the external monitoring device and the address set by the address setting unit match
Since the circuit section for transferring the operation status signal input through the terminal section to the external monitoring apparatus is provided, the operation of the breaker fetched from the I / O terminal section when the calling address from the external monitoring apparatus matches the set address. The situation signal can be transferred to the external monitoring device, and as a result, the external monitoring device can easily grasp the operation status of the breaker. Also, when adding a breaker, simply connect the extension connector of the existing breaker operation monitoring function unit and the connection connector of the breaker operation monitoring function unit corresponding to the newly added breaker with the connection cable. Thus, the breaker operation monitoring functional unit for expansion can be connected in parallel to the external monitoring device, and there is an effect that it is possible to easily cope with the expansion of the breaker.

According to a second aspect of the present invention, the address setting section, the connection connector, the extension connector, and the circuit section are built in a repeater independent of the I / O terminal section, and the repeater and the I / O terminal section are relayed. Because it is connected by a cable,
An off-the-shelf I / O used as a I / O unit for a sequencer
The advantage is that the / O unit can be used.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a circuit diagram of a repeater of the same, FIG. 3 is a top view of a printed circuit board of the repeater of the same, and FIG. 4 is an I / O of the same. Circuit diagrams of the terminal section, FIGS. 5 (a), (b), and (c) are a top view, a front view, a bottom view, and FIG. 6 of the above-mentioned printed circuit board of the I / O terminal section, respectively. FIG. 7 is a perspective view of another embodiment of the present invention. 1 is an I / O unit, 2 is a relay, 6 is a connector, 9 is an extension connector, 10a and 10b are data selectors, 14 is a terminal, SW is a DIP switch, and PC is a personal computer.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yusaku Matsubara 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (56) References Japanese Patent Publication No. 62-33820 (JP, B2)

Claims (2)

[Claims] 1. An I / O for connecting an operation status signal of a breaker.
A terminal unit, an address setting unit for setting an individual address, a connection connector for connecting an external monitoring device, an extension connector connected in parallel with the connection connector, and an address signal sent from the external monitoring device. When the address set in the above address setting section matches, I /
A breaker operation monitoring functional unit, comprising: a circuit section for transferring an operation status signal input through an O terminal section to an external monitoring device. 2. The address setting section, the connection connector, the extension connector, and the circuit section are connected to the I / O.
The breaker operation monitoring functional unit according to claim 1, wherein the breaker operation monitoring function unit is built in a repeater independent of the terminal unit, and the repeater and the I / O terminal unit are connected by a relay cable.