JP5190407B2 - Functional unit and control center - Google Patents

Functional unit and control center Download PDF

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Publication number
JP5190407B2
JP5190407B2 JP2009101878A JP2009101878A JP5190407B2 JP 5190407 B2 JP5190407 B2 JP 5190407B2 JP 2009101878 A JP2009101878 A JP 2009101878A JP 2009101878 A JP2009101878 A JP 2009101878A JP 5190407 B2 JP5190407 B2 JP 5190407B2
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wiring
functional unit
electronic relay
terminal block
control line
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JP2010252597A (en
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哲司 西川
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to JP2009101878A priority Critical patent/JP5190407B2/en
Priority to CN201080012760.4A priority patent/CN102349208B/en
Priority to PCT/JP2010/002815 priority patent/WO2010122765A1/en
Priority to KR1020117015640A priority patent/KR101261154B1/en
Publication of JP2010252597A publication Critical patent/JP2010252597A/en
Priority to HK12105608.9A priority patent/HK1165106A1/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/32—Mounting of devices therein
    • H02B1/34—Racks
    • H02B1/36—Racks with withdrawable units

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
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  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Description

この発明は、例えば電動機等の負荷の運転制御や運転状況の監視、警報の発生等を行う機能ユニットおよびコントロールセンタに関するものである。   The present invention relates to a functional unit and a control center that perform, for example, operation control of a load such as an electric motor, monitoring of operating conditions, generation of an alarm, and the like.

従来の機能ユニットは、該機能ユニット内部における正面に制御線接続端子台が配置され、制御線接続端子台に電子式リレーの入出力接点のそれぞれが接続されていた。一般的に、機能ユニットは多数の機能を有している。この多機能性は電子式リレーへの機器の追加や電子式リレー内のラダーシーケンスの変更により実現されている。機能ユニットの所望の機能を使用するために、外部制御線を機能ユニット内部に引き込み、制御線接続端子台の該当する一部の端子に接続していた。   In the conventional functional unit, the control line connection terminal block is arranged on the front surface inside the functional unit, and each of the input / output contacts of the electronic relay is connected to the control line connection terminal block. In general, the functional unit has a large number of functions. This multi-functionality is realized by adding equipment to the electronic relay or changing the ladder sequence in the electronic relay. In order to use a desired function of the functional unit, the external control line is drawn into the functional unit and connected to a part of the corresponding terminal of the control line connection terminal block.

特開２００６−２４６６５１号公報（図１）Japanese Patent Laying-Open No. 2006-246651 (FIG. 1)

しかしながら、従来の機能ユニットは、内部に配置された制御線接続端子台に外部制御線を接続していたので、この外部制御線を引き込むために機能ユニットの筐体の側板に隙間を設けていた。この隙間が開いたままでは、工具等の異物がこの隙間から入り、機能ユニットの電圧が印加されている充電部に接近する恐れがあった。また、工具等の異物の侵入を防ぐために隙間を塞ぐ処理を行う必要があり、機能ユニットの製造工程が長くなる問題があった。   However, since the conventional functional unit has an external control line connected to the control line connection terminal block disposed inside, a gap is provided in the side plate of the functional unit housing to draw the external control line. . If this gap is left open, foreign objects such as tools may enter through this gap and approach the charged part to which the voltage of the functional unit is applied. Moreover, in order to prevent intrusion of foreign objects such as tools, it is necessary to perform a process of closing the gap, which causes a problem that the manufacturing process of the functional unit becomes long.

この発明は、外部制御線の配設部から機能ユニットへの異物の侵入を防止し、外部制御線の配設部における異物侵入防止工程を不要にすることを目的とする。   It is an object of the present invention to prevent foreign matter from entering the functional unit from the external control line arrangement portion and to eliminate the foreign matter intrusion prevention step in the external control line arrangement portion.

この発明に係る機能ユニットは、箱体に着脱可能に収納され、筐体を有し負荷の制御を行う機能ユニットであって、負荷を制御する電子式リレーと、電子式リレーの入出力接点のそれぞれに接続された接続配線が接続される端子を有する配線端子台と、配線端子台の端子に中継配線を介して接続され外部制御線と接続するための端子を有する配線接続手段とを備え、電子式リレーの入出力接点に接続される配線端子台の端子のうちの一部の端子だけが、中継配線を介して配線接続手段の端子に接続され、電子式リレーの入出力接点に接続される配線端子台の端子の数より、それら端子の一部の端子だけが中継配線を介して接続される配線接続手段の端子の数が少なく、配線端子台は該機能ユニットの正面側に配置され、配線接続手段は筐体に配置される。
A functional unit according to the present invention is a functional unit that is detachably housed in a box and has a housing to control a load, and includes an electronic relay that controls the load and input / output contacts of the electronic relay. A wiring terminal block having a terminal to which a connection wiring connected to each is connected, and a wiring connecting means having a terminal connected to the terminal of the wiring terminal block via a relay wiring and connected to an external control line; Only some of the terminals of the wiring terminal block connected to the input / output contact of the electronic relay are connected to the terminal of the wiring connection means via the relay wiring and connected to the input / output contact of the electronic relay. The number of terminals of the wiring connecting means in which only some of the terminals are connected via the relay wiring is smaller than the number of terminals of the wiring terminal block, and the wiring terminal block is arranged on the front side of the functional unit. , Wiring connection means in the housing It is location.

この発明に係る機能ユニットは、外部制御線の配設部から機能ユニットへ異物が侵入することを防止し、外部制御線の配設部における異物侵入防止工程を不要にすることができる。   The functional unit according to the present invention can prevent foreign matter from entering the functional unit from the external control line arrangement portion, and can eliminate the foreign matter intrusion prevention step in the external control line arrangement portion.

この発明の実施の形態１における機能ユニットを示す正面図である。It is a front view which shows the functional unit in Embodiment 1 of this invention. 図１の機能ユニットの側面図である。It is a side view of the functional unit of FIG. 図１の機能ユニットが収納されたコントロールセンタを示す斜視図である。It is a perspective view which shows the control center in which the functional unit of FIG. 1 was accommodated.

実施の形態１．
図１はこの発明の実施の形態１における機能ユニットを示す正面図であり、図２は機能ユニットの側面図であり、図３は機能ユニットが収納されたコントロールセンタを示す斜視図である。コントロールセンタ２０は、箱体２１に複数の機能ユニット１が収納される。機能ユニット１は工場などに設置された電動機等の負荷の運転制御や運転状況の監視、警報の発生等を行う。 Embodiment 1 FIG.
1 is a front view showing a functional unit according to Embodiment 1 of the present invention, FIG. 2 is a side view of the functional unit, and FIG. 3 is a perspective view showing a control center in which the functional unit is accommodated. The control center 20 stores a plurality of functional units 1 in a box 21. The functional unit 1 performs operation control of a load such as an electric motor installed in a factory, monitoring of an operation state, generation of an alarm, and the like.

箱体２１は、機能ユニット１を収納するユニット室の正面にユニット室扉２１ａを有し、機能ユニット１と負荷を接続する外部制御線１０や電力ケーブル（図示せず）、負荷の監視情報を伝送するケーブル（図示せず）などを収納するダクト室２１ｂの正面にダクト室扉２１ｃを有する。機能ユニット１の正面側には配線用遮断器４の操作ハンドルと電子式リレー５の表示器が配置される。   The box 21 has a unit chamber door 21a in the front of the unit chamber that houses the functional unit 1, and has external control lines 10 and power cables (not shown) that connect the functional unit 1 and the load, and load monitoring information. A duct chamber door 21c is provided in front of the duct chamber 21b for storing a cable (not shown) for transmission. On the front side of the functional unit 1, an operation handle of the circuit breaker 4 for wiring and an indicator of the electronic relay 5 are arranged.

機能ユニット１の筐体１５を構成する天板１６及び側板１７にベース９が取り付けられる。ベース９の正面に配線用遮断器４、電磁開閉器１１、配線端子台２が配置される。配線用遮断器４、電磁開閉器１１は、電動機等の負荷に電力を供給する主回路を構成し、電子式リレー５は制御回路を構成する。主回路及び制御回路は負荷を制御する。   The base 9 is attached to the top plate 16 and the side plate 17 constituting the casing 15 of the functional unit 1. The circuit breaker 4 for wiring, the electromagnetic switch 11, and the wiring terminal block 2 are arranged in front of the base 9. The circuit breaker 4 and the electromagnetic switch 11 constitute a main circuit that supplies power to a load such as an electric motor, and the electronic relay 5 constitutes a control circuit. The main circuit and the control circuit control the load.

配線用遮断器４は、その電源側端子４ａがコントロールセンタ２０に設けられた三相交流配線である母線（図示せず）に接続される接触子６と主回路配線（図示せず）で接続され、その負荷側端子４ｂが電磁開閉器１１の電源側端子１１ａと主回路配線（図示せず）で接続される。電磁開閉器１１の負荷側端子１１ｂには電動機等の負荷に給電する電力ケーブル（図示せず）が接続される。   The circuit breaker 4 for wiring is connected by a main circuit wiring (not shown) to a contact 6 whose power supply side terminal 4a is connected to a bus (not shown) which is a three-phase AC wiring provided in the control center 20. The load side terminal 4b is connected to the power source side terminal 11a of the electromagnetic switch 11 by main circuit wiring (not shown). A power cable (not shown) for supplying power to a load such as an electric motor is connected to the load side terminal 11 b of the electromagnetic switch 11.

電子式リレー５は、その表示器が機能ユニット１の正面に向くように筐体１５の天板１６に取り付けられる。電子式リレー５の入出力接点は、それぞれ配線端子台２の電子リレー側端子に接続配線で接続される。   The electronic relay 5 is attached to the top plate 16 of the housing 15 so that the display device faces the front of the functional unit 1. The input / output contacts of the electronic relay 5 are connected to the electronic relay side terminals of the wiring terminal block 2 by connecting wires.

配線端子台２は電子リレー側端子に接続された外部側端子を有し、この外部側端子と側板１７に配置された接続手段であるコネクタ３とを中継配線８で接続している。機能ユニット１をコントロールセンタ２０の箱体２１に収納した後に外線コネクタ７に接続された外部制御線１０を接続する。   The wiring terminal block 2 has an external terminal connected to the electronic relay side terminal, and the external terminal is connected to the connector 3 which is a connecting means arranged on the side plate 17 by the relay wiring 8. After the functional unit 1 is stored in the box 21 of the control center 20, the external control line 10 connected to the external line connector 7 is connected.

電子式リレー５は簡易プログラムであるラダーシーケンスを変更することで、容易に回路構成を変更することができる。また電子式リレー５は多数の入出力接点を有しており、この入出力接点に電流センサ等の監視機器、警報機器やリレーなどを接続し、各種の制御機能や監視機能を実現する。   The electronic relay 5 can easily change the circuit configuration by changing the ladder sequence which is a simple program. The electronic relay 5 has a large number of input / output contacts, and monitoring devices such as current sensors, alarm devices and relays are connected to the input / output contacts to realize various control functions and monitoring functions.

実施の形態１の機能ユニット１は筐体１５の側板１７に外部制御線１０を接続する接続手段であるコネクタ３を配置したので、外部制御線１０を機能ユニット１の内部の配線端子台２に引き込むための隙間を設ける必要がない。したがって外部制御線１０の配設部から機能ユニットへ異物が侵入することを防止し、外部制御線１０の配設部における異物侵入防止工程を不要にすることができる。   In the functional unit 1 according to the first embodiment, the connector 3 which is a connecting means for connecting the external control line 10 to the side plate 17 of the housing 15 is arranged, so that the external control line 10 is connected to the wiring terminal block 2 inside the functional unit 1. There is no need to provide a gap for drawing. Therefore, it is possible to prevent foreign matter from entering the functional unit from the portion where the external control line 10 is disposed, and to eliminate the foreign matter intrusion prevention step at the portion where the external control line 10 is disposed.

ユーザー毎の仕様に従って配線端子台２の一部に対応する端子だけを中継配線８でコネクタ３に接続し、コネクタ３の端子の数を少なくしたので、ユーザーは機能ユニット１のコネクタ３に外部制御線１０を接続するだけで外部制御線１０の結線を完了することができる。したがって、実施の形態１の機能ユニット１は、電子式リレー５の全ての接点に接続された制御線接続端子台の所定の外部側端子を確認しながら接続していた従来と異なり、外部制御線１０の結線を容易にすることができる。コネクタ３を使用することで、一括接続でき、外部制御線１０の結線を容易にすることができる。   Only the terminals corresponding to a part of the wiring terminal block 2 are connected to the connector 3 by the relay wiring 8 according to the specifications for each user, and the number of terminals of the connector 3 is reduced. The connection of the external control line 10 can be completed simply by connecting the line 10. Therefore, the functional unit 1 according to the first embodiment is different from the conventional one in which the predetermined external terminals of the control line connection terminal block connected to all the contacts of the electronic relay 5 are confirmed and connected. Ten connections can be facilitated. By using the connector 3, it is possible to connect all together and to easily connect the external control line 10.

機能ユニット１のコネクタ３はコントロールセンタ２０のダクト室２１ｂ側に配置したので、ユーザーはダクト室２１ｂに設置した外部制御線１０を容易に機能ユニット１のコネクタ３に接続することができる。外部制御線１０をダクト室２１ｂからユニット室の奥へ引き込まないので、外部制御線１０の長さを短くすることができる。また、外部制御線１０と電力ケーブルや他の機能ユニット１の外部制御線１０及び電力ケーブルとの整線が容易にできる。   Since the connector 3 of the functional unit 1 is disposed on the duct chamber 21b side of the control center 20, the user can easily connect the external control line 10 installed in the duct chamber 21b to the connector 3 of the functional unit 1. Since the external control line 10 is not drawn from the duct chamber 21b to the back of the unit chamber, the length of the external control line 10 can be shortened. In addition, the external control line 10 can be easily aligned with the power cable and the external control line 10 and the power cable of another functional unit 1.

電子式リレー５の全ての入出力接点を配線端子台２の電子リレー側端子に接続したので、機能を限定して使用するユーザーの仕様に関わらず、機能ユニット１の構成をコネクタ３から配線端子台２までを除いて共通にできる。したがってユーザーの仕様に関わる部分を少なくしたので、機能ユニット１の製造を容易に、正確にかつ短時間での製造ができる。   Since all the input / output contacts of the electronic relay 5 are connected to the electronic relay side terminals of the wiring terminal block 2, the configuration of the functional unit 1 is connected from the connector 3 to the wiring terminals regardless of the specifications of the user who uses the functions with limited functions. Can be shared except for up to 2 units. Accordingly, since the portion related to the user's specifications is reduced, the functional unit 1 can be manufactured easily, accurately, and in a short time.

電子式リレー５の全ての入出力接点を配線端子台２の電子リレー側端子に接続したので、コネクタ３から配線端子台２までを除いて共通構成の中間体を製造した後に、配線端子台２とコネクタ３とを中継配線８で容易に接続することができる。   Since all the input / output contacts of the electronic relay 5 are connected to the electronic relay side terminals of the wiring terminal block 2, after manufacturing the intermediate of the common configuration except for the connector 3 to the wiring terminal block 2, the wiring terminal block 2 And the connector 3 can be easily connected by the relay wiring 8.

実施の形態１のコントロールセンタ２０は、機能ユニット１にコネクタ３を配置したので、外部制御線１０の配設部から機能ユニットへ異物が侵入することを防止し、外部制御線の配設部における異物侵入防止工程を不要にすることができる。ユーザーは機能ユニット１のコネクタ３に外部制御線１０を接続するだけで外部制御線１０の結線を完了することができる。機能ユニット１の接続手段としてコネクタ３を適用することで、一括接続でき、外部制御線１０の結線を容易にすることができる。機能ユニット１のコネクタ３はコントロールセンタ２０のダクト室２１ｂ側に配置したので、ユーザーはダクト室２１ｂに設置した外部制御線１０を容易に機能ユニット１のコネクタ３に接続することができる。   Since the control center 20 of the first embodiment has the connector 3 disposed in the functional unit 1, it prevents foreign matter from entering the functional unit from the portion where the external control line 10 is disposed, and in the portion where the external control line is disposed. A foreign matter intrusion prevention step can be eliminated. The user can complete the connection of the external control line 10 simply by connecting the external control line 10 to the connector 3 of the functional unit 1. By applying the connector 3 as the connection means of the functional unit 1, it is possible to connect all at once and to easily connect the external control line 10. Since the connector 3 of the functional unit 1 is disposed on the duct chamber 21b side of the control center 20, the user can easily connect the external control line 10 installed in the duct chamber 21b to the connector 3 of the functional unit 1.

以上のように、この発明の実施の形態１における機能ユニット１によれば、負荷を制御する電子式リレー５と、電子式リレー５の入出力接点のそれぞれに接続された接続配線を接続した配線端子台２と、配線端子台２に接続された中継配線８の一端に設けられ外部制御線１０を接続するための配線接続手段３とを備え、配線端子台２は該機能ユニット１の正面側に配置され、配線接続手段３は筐体１５に配置されたので、外部制御線１０の配設部から機能ユニットへ異物が侵入することを防止し、外部制御線１０の配設部における異物侵入防止工程を不要にすることができる。   As described above, according to the functional unit 1 in the first embodiment of the present invention, the wiring connecting the electronic relay 5 that controls the load and the connection wiring connected to the input / output contact of the electronic relay 5 is connected. A terminal block 2 and wiring connection means 3 for connecting an external control line 10 provided at one end of the relay wiring 8 connected to the wiring terminal block 2 are provided. The wiring terminal block 2 is on the front side of the functional unit 1. Since the wiring connecting means 3 is disposed in the casing 15, foreign matter can be prevented from entering the functional unit from the portion where the external control line 10 is disposed, and foreign matter can be prevented from entering the portion where the external control line 10 is disposed. The prevention process can be eliminated.

この発明の実施の形態１におけるコントロールセンタ２０によれば、複数収納された機能ユニット１が、負荷を制御する電子式リレー５と、電子式リレー５の入出力接点のそれぞれに接続された接続配線を接続した配線端子台２と、配線端子台２に接続された中継配線８の一端に設けられ外部制御線１０を接続するための配線接続手段３とを備え、配線端子台２は該機能ユニット１の正面側に配置され、配線接続手段３は筐体１５に配置されたので、外部制御線１０の配設部から機能ユニットへ異物が侵入することを防止し、外部制御線１０の配設部における異物侵入防止工程を不要にすることができる。   According to the control center 20 in Embodiment 1 of the present invention, a plurality of functional units 1 are connected to the electronic relay 5 for controlling the load and the input / output contacts of the electronic relay 5. A wiring terminal block 2 connected to the wiring terminal block 2 and wiring connection means 3 provided at one end of the relay wiring 8 connected to the wiring terminal block 2 for connecting the external control line 10. The wiring terminal block 2 includes the functional unit. Since the wiring connecting means 3 is disposed in the housing 15, foreign matter can be prevented from entering the functional unit from the disposed portion of the external control line 10, and the external control line 10 can be disposed. The foreign matter intrusion prevention process in the part can be made unnecessary.

なお、コネクタ３に接続する配線端子台２の外部側端子として、電子式リレー５の全入出力接点の一部を接続する例で説明したが、電子式リレー５の全入出力接点をコネクタ３に接続してもよい。この場合は、コントロールセンタ２０の設置後にユーザー側で制御機器や監視機器等の追加設置や変更を容易にすることができる。   In addition, although the example which connects a part of all the input / output contacts of the electronic relay 5 as an external terminal of the wiring terminal block 2 connected to the connector 3 was demonstrated, all the input / output contacts of the electronic relay 5 are connected to the connector 3. You may connect to. In this case, after the control center 20 is installed, it is possible to facilitate additional installation or change of control devices, monitoring devices, and the like on the user side.

コネクタ３は、筐体１５の側板１７に限らず、筐体１５のいずれの場所に配置されもよい。コネクタ３は、ダクト室２１ｂ側に向いている場合に限らず、ダクト室２１ｂに近接した筐体１５の場所に配置されても構わない。この場合でも、ユーザーはダクト室２１ｂに設置した外部制御線１０を容易に機能ユニット１のコネクタ３に接続することができる。   The connector 3 is not limited to the side plate 17 of the housing 15, and may be disposed at any location of the housing 15. The connector 3 is not limited to the case facing the duct chamber 21b side, and may be disposed at the location of the casing 15 close to the duct chamber 21b. Even in this case, the user can easily connect the external control line 10 installed in the duct chamber 21 b to the connector 3 of the functional unit 1.

また筐体１５に配置した接続手段として配線端子台２を使用しても構わない。接続手段は、筐体１５の側板１７に限らず、筐体１５のいずれの場所に配置されもよい。   Further, the wiring terminal block 2 may be used as a connecting means arranged in the housing 15. The connecting means is not limited to the side plate 17 of the housing 15, and may be disposed at any location of the housing 15.

この発明に係る機能ユニットは、外部制御線１０の配設部から機能ユニットへ異物が侵入することを防止し、外部制御線１０の配設部における異物侵入防止工程を不要にすることができるので、機能ユニットを収納するコントロールセンタ等の盤装置に好適に適用できる。   The functional unit according to the present invention can prevent foreign matter from entering the functional unit from the portion where the external control line 10 is disposed, and can eliminate the step of preventing foreign matter entry at the portion where the external control line 10 is disposed. It can be suitably applied to a panel device such as a control center that houses functional units.

１ 機能ユニット ２ 配線端子台
３ コネクタ ５ 電子式リレー
８ 中継配線 １０ 外部制御線
１５ 筐体 ２０ コントロールセンタ
２１ 箱体 ２１ｂ ダクト室 DESCRIPTION OF SYMBOLS 1 Functional unit 2 Wiring terminal block 3 Connector 5 Electronic relay 8 Relay wiring 10 External control line 15 Case 20 Control center 21 Box 21b Duct chamber

Claims (6)

箱体に着脱可能に収納され、筐体を有し負荷の制御を行う機能ユニットであって、
前記負荷を制御する電子式リレーと、
前記電子式リレーの入出力接点のそれぞれに接続された接続配線が接続される端子を有する配線端子台と、
前記配線端子台の前記端子に中継配線を介して接続され外部制御線と接続するための端子を有する配線接続手段とを備え、
前記電子式リレーの入出力接点に接続される前記配線端子台の前記端子のうちの一部の端子だけが、前記中継配線を介して前記配線接続手段の前記端子に接続され、
前記電子式リレーの入出力接点に接続される前記配線端子台の前記端子の数より、それら端子の一部の端子だけが前記中継配線を介して接続される前記配線接続手段の前記端子の数が少なく、
前記配線端子台は該機能ユニットの正面側に配置され、前記配線接続手段は前記筐体に配置されたことを特徴とする機能ユニット。 A functional unit that is detachably housed in a box and has a housing to control a load,
An electronic relay for controlling the load;
A wiring terminal block having a terminal to which a connection wiring connected to each of the input and output contacts of the electronic relay is connected ;
Wiring connection means having a terminal connected to the terminal of the wiring terminal block via a relay wiring and connected to an external control line;
Only some of the terminals of the wiring terminal block connected to the input / output contact of the electronic relay are connected to the terminals of the wiring connecting means via the relay wiring,
From the number of the terminals of the wiring terminal block connected to the input / output contact of the electronic relay, the number of the terminals of the wiring connecting means in which only some of the terminals are connected via the relay wiring Less
The functional unit, wherein the wiring terminal block is arranged on a front side of the functional unit, and the wiring connecting means is arranged in the casing. 前記配線接続手段は前記外部制御線が配置されるダクト室側に向いて配置されたことを特徴とする請求項１に記載の機能ユニット。The functional unit according to claim 1, wherein the wiring connection unit is arranged toward a duct chamber side where the external control line is arranged. 前記配線端子台は、前記電子式リレーの全ての入出力接点のそれぞれに前記接続配線を介して接続されることを特徴とする請求項１又は２に記載の機能ユニット。The functional unit according to claim 1, wherein the wiring terminal block is connected to each of all input / output contacts of the electronic relay via the connection wiring. 前記配線接続手段は、前記箱体に設けられ前記負荷と該機能ユニットとを接続するケー
ブルを収納するダクト室側に配置されたことを特徴とする請求項１乃至３のいずれか１項
に記載の機能ユニット。 The said wiring connection means is arrange | positioned at the duct chamber side which accommodates the cable which is provided in the said box and connects the said load and this functional unit, It is any one of Claim 1 thru | or 3 characterized by the above-mentioned. Functional unit. 前記配線端子台の前記端子を用いて前記電子式リレー内のラダーシーケンスを変更することにより前記電子式リレーの機能を変更でき、当該機能の変更は前記配線接続手段の前記端子からは行えず、前記配線接続手段の前記端子に前記外部制御線を接続することで前記電子式リレーの機能を使用でき、前記電子式リレーは、その表示器が機能ユニットの正面を向くように取り付けられることを特徴とする請求項１乃至４のいずれか１項に記載の機能ユニット。The function of the electronic relay can be changed by changing the ladder sequence in the electronic relay using the terminal of the wiring terminal block, the change of the function can not be performed from the terminal of the wiring connection means, The function of the electronic relay can be used by connecting the external control line to the terminal of the wiring connection means, and the electronic relay is attached so that the indicator faces the front of the functional unit. The functional unit according to any one of claims 1 to 4. 前記箱体に請求項１乃至５のいずれか１項に記載の機能ユニットが複数収納されたこと
を特徴とするコントロールセンタ。 A control center characterized in that a plurality of functional units according to any one of claims 1 to 5 are stored in the box.
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