JPS5834373A - Testing device for limit switch - Google Patents

Testing device for limit switch

Info

Publication number
JPS5834373A
JPS5834373A JP56132684A JP13268481A JPS5834373A JP S5834373 A JPS5834373 A JP S5834373A JP 56132684 A JP56132684 A JP 56132684A JP 13268481 A JP13268481 A JP 13268481A JP S5834373 A JPS5834373 A JP S5834373A
Authority
JP
Japan
Prior art keywords
circuit
limit switch
logic circuit
limit
output side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56132684A
Other languages
Japanese (ja)
Inventor
Matsuji Ejima
江島 松治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56132684A priority Critical patent/JPS5834373A/en
Publication of JPS5834373A publication Critical patent/JPS5834373A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3277Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

PURPOSE:To connect a display device to the output side of each logical circuit respectively so that the operation of a limit switch is confirmed easily, by connecting at least four electric logical circuit to plural limit switches. CONSTITUTION:Output sides of limit switches 1 and 2 are connected to an AND circuit 3, and the output side of the limit switch 1 is connected to the 2nd AND circuit 4, and further connected to the 3rd AND circuit 6 through an NOT circuit and to the 4th AND circuit 8 through an NOT circuit 7. The output side of the limit switch 2 is connected to the AND circuit 6 and also connected to the AND circuit 4 through an NOT circuit 9 and to the AND circuit 8 through an NOT circuit 10. To the AND circuit 3, a pilot lamp 11 for repetition warning is connected and to the AND circuit 8, a pilot lamp 14 for opening warning is connected; and pilot lamps 12 and 13 for indicating positions respectively are connected to the AND circuits 4 and 6 to inspect even the transient state of a contactor of a limit switch.

Description

【発明の詳細な説明】 本発明はリミットスイッチの試験装置に関する。[Detailed description of the invention] The present invention relates to a limit switch testing device.

従来、開閉などの位置検出にはリミットスイッチが広く
用いられている。これは物体がその接触子1−ふれ、そ
れを動かすととC二より接点の開閉を行うものであり、
リミットスイッチの信頼性は自動化装置の成否な1.i
:すものとなっている。従って、リミットスイッチを使
用(−だ製品を製作した場合や、使用開始(−は入念な
試験がなされリミットスイッチが正常(二作動する事が
確認される。然るにリミットスイッチの試験は、それが
1個の場合(二は年に開閉状態を確認するだけであり、
困虹な作業ではないが、リミットスイッチが初数個の場
合には個別の開閉状態を検査するだけでなく、相互間の
関係を試験する必要がある。とりわけ、検出すべき位置
が変動している場合には物体(二ふれる接触子も動いて
おり、その過渡的ガ状態を目視するのは困難であった。
Conventionally, limit switches have been widely used to detect positions such as opening and closing. In this case, when an object touches the contact 1 and moves it, the contact opens and closes from C2.
The reliability of limit switches depends on the success or failure of automated equipment.1. i
:It has become a favorite. Therefore, when a product is manufactured using a limit switch (-), or when it is used (-), a careful test is performed and the limit switch is confirmed to operate normally. In the case of pieces (the second is just to check the opening and closing status,
Although it is not a difficult task, when there are only a few limit switches, it is necessary not only to inspect the individual open/close states but also to test the relationship between them. In particular, when the position to be detected is changing, the object (the contactor) is also moving, and it is difficult to visually observe the transient state.

例えば2個以上のリミットスイッチの作動状態が互いに
重複する場合や、共に開放状態にある拳も注倉深く検査
する為には従来の検電器(テスター)と警報器の組合せ
では不可能の場合も生じていた。
For example, there are cases where the operating states of two or more limit switches overlap with each other, or where a combination of a conventional voltage detector (tester) and alarm is not possible in order to deeply inspect the pouring chamber for fists that are both in the open state. was occurring.

本発明の目的H上記欠点を除去し、手作業によらずC1
複数個のリミットスイッチの開閉状態を正確に検知する
ことができ、さらには、それらのl:複検出、開放検出
も可能なリミットスイッチの試験装置を提供することf
二ある。
Objective of the present invention
To provide a limit switch testing device capable of accurately detecting the open/closed states of a plurality of limit switches, and further capable of double detection and open detection.
There are two.

上記目的を達成するために本発明ii複数個のリミット
スイッチに少くとも4個の電1気的な論理N路を接続す
る。これら論理回路のうち2個はリミットスイッチの開
せたは閉の位置検出に、他の2個は重複検出および開放
検出に用いる。リミットスイッチの作動を容易C二確認
できるように各論理回路の出力側Cそれぞれ表示装置を
接続する。
To achieve the above object, the present invention ii connects at least four electrical logic N-paths to a plurality of limit switches. Two of these logic circuits are used to detect the open or closed position of the limit switch, and the other two are used to detect overlap and open. A display device is connected to each output side of each logic circuit so that the operation of the limit switch can be easily confirmed.

以下本発明の実施例を図面な8稙(7て説明する。Embodiments of the present invention will be described below with reference to the drawings.

第1図は本発明の一実施例を示す基本回路の説明図であ
り、1は検出位置で作動する第1のリミットスイッチ、
2は前記検出位置で不動作となる第2のリミットスイッ
チである。リミットスイッチ1.2の出力側は第1の論
理種回路すなわちAND論理回路3 C接続されている
。又、リミットスイッチ1の出力側は第2のAND論理
回路4に接続され、さらC二否定論理回路すなわちNO
T論理回(8) 路5を通して第3のAND論理回路6、及びNOT論理
回路7を通して第4のAND論理回路8に接続される。
FIG. 1 is an explanatory diagram of a basic circuit showing an embodiment of the present invention, in which 1 is a first limit switch that operates at a detection position;
2 is a second limit switch which becomes inoperative at the detection position. The output side of the limit switch 1.2 is connected to a first logic type circuit, that is, an AND logic circuit 3C. Further, the output side of the limit switch 1 is connected to a second AND logic circuit 4, and further connected to a C2N logic circuit, that is, a NO logic circuit.
T logic circuit (8) is connected to the third AND logic circuit 6 through the path 5 and to the fourth AND logic circuit 8 through the NOT logic circuit 7.

更也二リミットスイッチ2の出力側はAND論理Iu路
6C二接続される他に、NOT論理回路9を通してAN
Dlliiii理回路4【二、又NOT論理回路10を
通してAND論理回路8に接続されている。そして、A
ND論a!N路3I−は重a舎報用の表示灯11、又A
ND論理回路8には開放警報用の表示灯14が接続され
、ANDflffl理回路4.6にはそれぞれ位置を示
す表示幻12.13が接続されている。
The output side of the limit switch 2 is connected to the AND logic circuit 6C, and also to the AN circuit through the NOT logic circuit 9.
Dlliii logic circuit 4 [2] is also connected to AND logic circuit 8 through NOT logic circuit 10. And A
ND theory a! N Road 3I- is the indicator light 11 for heavy A news, and A
An open warning indicator light 14 is connected to the ND logic circuit 8, and display lamps 12 and 13 for indicating positions are connected to the ANDflffl logic circuit 4.6.

第2図(a)はリミットスイッチ1の動作を示す藺、四
回であり、位fM 1.5においては不動作、位置16
(二おいては動作状態を示す。又第2図(J)はリミッ
トスイッチ2の動作を示す説明図であり、位置15にお
いては動作、位yt、t6においては不動作状態を示し
ている。
Figure 2(a) shows the operation of limit switch 1 four times; at position fM 1.5 it does not operate, and at position 16
(2 shows the operating state. FIG. 2 (J) is an explanatory diagram showing the operation of the limit switch 2, and the position 15 shows the operating state, and the positions yt and t6 show the inactive state.

今仮に、リミットスイッチの図示しない接触子が位f1
1.5の範囲にある第1図の回路作動C二ついて説明す
る。す・ミツトスイッチIFi不動作、リミットスイッ
チ2は動作であるからANDXa理回路3゜゛(4; 4.8は不動作となり表示灯11 、12.14は点灯
しない。しかしAND論理回路6は動作し、表示灯13
は点灯しリミットスイッチ1が開でリミットスイッチ2
が閉の正常な位置にあることを表示する。
Now, suppose that the contact (not shown) of the limit switch is in position f1.
Two circuit operations C in FIG. 1 in the range of 1.5 will be explained. Mitswitch IFi is inoperative, and limit switch 2 is in operation, so ANDXa logic circuit 3゜゛(4; 4.8 is inoperable and indicator lights 11 and 12.14 do not light up.However, AND logic circuit 6 does not operate. , indicator light 13
lights up and limit switch 1 is open and limit switch 2
is in the normal closed position.

次Cニリミットスイッチの接触子が位[1(3の範囲響
二ある場合にはリミットスイッチ1は動作、リミットス
イッチ2は不動作であるからAND論理回路3.6.8
は不動作となり表示灯11.13.14は点灯しない。
If the contact of the limit switch C is in the range [1 (3), limit switch 1 is active and limit switch 2 is inactive, so AND logic circuit 3.6.8
is inoperative and indicator lights 11, 13, and 14 do not light up.

しかしAND論理回路4は動作し、表示灯12は点灯し
リミットスイッチ1が閉でリミットスイッチ2が開の正
常位tにあることを表示する。
However, the AND logic circuit 4 operates, and the indicator light 12 lights up to indicate that the limit switch 1 is in the normal position t, in which the limit switch 1 is closed and the limit switch 2 is open.

第3図はリミットスイッチが重複している場合を示す。FIG. 3 shows a case where limit switches are duplicated.

リミットスイッチの接触子が位1#17の範:囲C−あ
る場合にはリミットスイッチ1.2け共C−動作状態に
あるのでAND論理回路4,6.8は不動作となり表示
灯12.13.14は点灯しない。しかしAND論理回
路3は動作し、重複警報用の表示灯l]が点灯して注意
を喚起する事ができる。
If the contactor of the limit switch is in the range 1#17: range C-, both limit switches 1.2 are in the C-operating state, so the AND logic circuits 4, 6, 8 are inactive and the indicator light 12. 13.14 is not lit. However, the AND logic circuit 3 operates, and the redundant alarm indicator light 1 lights up to alert the user.

第4図はリミットスイッチが開放、即ち不連続の場合を
示す。リミットスイッチの接触子が位置18の範囲にあ
る場合I:はリミットスイッチ1.2は共に不動作であ
るから、AND論理回路3,4゜6は不動作となり表示
灯11 、12.13は点灯しない。
FIG. 4 shows the case where the limit switch is open, ie, discontinuous. When the contact of the limit switch is in the range of position 18, both limit switches 1 and 2 are inoperative, so AND logic circuits 3 and 4.6 are inoperable and indicator lights 11 and 12 and 13 are lit. do not.

しかしAND論理回路8は動作し、開放警報用の表示灯
14は点灯して注意を喚起する事ができる。
However, the AND logic circuit 8 operates, and the opening warning indicator light 14 lights up to alert the user.

以上のようC二本発明シニよれば、リミットスイッチの
位置をテスターで導通試験する事なく、表示灯の確認に
よって状態の変化を正確(二把握する事“ができ、又2
個のリミットスイッチの重複、開放の相互関係を容易に
知る事ができる。特に本発明C二よればリミットスイッ
チの接触子が逐次変化する場合においても、その過渡的
な重複、開放状態を検査できるので信頼性の高いリミタ
I・スイッチの試験装置を提供することができる。
As described above, according to the present invention, it is possible to accurately (2) ascertain changes in the state by checking the indicator light without conducting a continuity test on the position of the limit switch with a tester, and (2)
You can easily know the mutual relationship between overlapping and opening of limit switches. In particular, according to the present invention C2, even when the contactor of the limit switch changes successively, it is possible to test for transient overlapping and open states, thereby providing a highly reliable limiter I switch testing device.

第5図は本発明の他の実施例を示す説明図である。複合
のリミットスイッチ20(二は検出位置で作動するリミ
ットスイッチ群1,1aと前記検出位置で不動作となる
リミットスイッチ群2,2αがある。
FIG. 5 is an explanatory diagram showing another embodiment of the present invention. A composite limit switch 20 (second is a limit switch group 1, 1a that operates at the detection position and a limit switch group 2, 2α that does not operate at the detection position).

又、これらのリミットスイッチ群の出力側はそれぞれ1
と2.1と2a、1aと2.1αと2aで互いに組合わ
されてA、N D論理回路3,3a、3存、3c(−接
続され、又これと並列に」二側の川合せにNOT論理回
路7.7a、 ’Hk、 7c及び10. J(la、
 104 、 Hlcを介してAND論理回路8,8a
、84,8c に接続される。AND論理回路40入力
側も端子数の多いものを使用し、リミットスイッチ1,
1αから直接1−1又は2,2aからNOTOR論理回
路9aを介して接続される。同様にA N D %ii
 刊!回路6(二は2,2aから直接C二、1,1aか
らはNOT論理回路5,5aを介して接続される。21
は論理和回路すなわち0R1i埋回路であり、その入力
側はAND論理回路3.3a、3Jt3cに接続され、
その出力側はl′複警報用の表示灯11に接続される。
Also, the output side of each of these limit switch groups is 1
and 2.1 and 2a, 1a and 2.1α and 2a are combined with each other to form A, N D logic circuits 3, 3a, 3 and 3c (- connected and in parallel with this) in the rivers on the two sides. NOT logic circuits 7.7a, 'Hk, 7c and 10.J(la,
104, AND logic circuit 8, 8a via Hlc
, 84, 8c. The input side of the AND logic circuit 40 also uses one with a large number of terminals, and the limit switch 1,
It is directly connected from 1α to 1-1 or from 2 and 2a via the NOTOR logic circuit 9a. Similarly, A N D %ii
Published! Circuit 6 (2 is directly connected from 2, 2a to C2, 1, 1a via NOT logic circuit 5, 5a. 21
is an OR circuit, that is, an 0R1i buried circuit, and its input side is connected to AND logic circuits 3.3a and 3Jt3c,
Its output side is connected to an indicator light 11 for l' double alarm.

22はORh埋回路であり、その入力側1d AND論
理回路8.8a、 84.8(!に接続され、その出力
側は開放警報用の表示灯14に接続されている。
22 is an ORh buried circuit, and its input side is connected to AND logic circuits 8.8a and 84.8(!), and its output side is connected to an indicator light 14 for an open alarm.

第6図は第5図のリミットスイッチ1.la、2゜2a
の開閉状態を示すもので、図示しない接触子が位置15
にある時1′″−は前述と同様にして正常位置を示す表
示灯13が点灯し、接触子が位[16にある時には表示
灯12が点灯する。同様gニリミットスイッ群のいずれ
かに重複がある場合【ユは表示灯11にて術報表示し、
開放がある場合には表示灯14にて警報表示する事がで
きる。
Figure 6 shows the limit switch 1 of Figure 5. la, 2゜2a
The contactor (not shown) is at position 15.
When the contact is in position 1'''-, the indicator light 13 indicating the normal position lights up in the same manner as described above, and when the contact is in position [16], the indicator light 12 lights up. If there is a duplicate [Yu will display the warning light on indicator light 11,
If there is an opening, an alarm can be displayed using the indicator light 14.

本実施例の場合には、リミットスイッチの数が4個とし
たが、更(二多くする事は論理回路数を増加する事によ
って1丁能である。そしてリミットスイッチ数が増加す
れはする程、それらの組合せ数は増加し、従来のテスタ
ーやブザーによる手作業では応じきれなくなるのは自然
である。本発明は電気的論理回路を組合せて試鹸回路を
構成したので、人為的な配憶違いによる間違いが発生す
る事もなく正確で信頼度の冶;いリミットスイッチの試
験装置を提供する事ができる。
In the case of this embodiment, the number of limit switches is four, but increasing the number by two (2) is equivalent to one function by increasing the number of logic circuits. It is natural that the number of combinations will increase over time, making it impossible to handle them manually using conventional testers and buzzers.In the present invention, a test circuit is constructed by combining electrical logic circuits, so artificial arrangement is not required. It is possible to provide a limit switch testing device that is accurate and reliable without causing mistakes due to misunderstandings.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一笑施例を示すリミットスイッチの試
験装置の説明図、第2図乃至第4図は第1図の作用を示
す説明図、第5図は他の実施例を示す試験装置の説明図
、第6図は第5図の作用を示す説明図である。 1.2・・・リミットスイッチ 3、4.6.8・・・AND論理回路 5.7・・・NOT論理回路 21.22・・・OR論理回路
Fig. 1 is an explanatory diagram of a limit switch testing device showing a simple embodiment of the present invention, Figs. 2 to 4 are explanatory diagrams showing the operation of Fig. 1, and Fig. 5 is a test showing another embodiment. An explanatory diagram of the device, FIG. 6 is an explanatory diagram showing the operation of FIG. 5. 1.2...Limit switch 3, 4.6.8...AND logic circuit 5.7...NOT logic circuit 21.22...OR logic circuit

Claims (1)

【特許請求の範囲】[Claims] 検出位置で作動する第1のリミットスイッチと前記検出
位置で不動作となる第2のリミットスイッチと、前記両
リミットスイッチに接続された1(被検出用の第1の論
理積回路と、前記第1のリミットスイッチと前記第2の
リミットスイッチに否定論理回路を介して接続された位
置検出用の第2論理積回路と、前記第2のリミットスイ
ッチと前記第1のリミットスイッチに否定論理lr+1
路を介して接続された位置検出用の第3論理積回路と、
前記第1及び第2のリミットスイッチの各々に否定論理
回路を介して接続された開放検出用の第4の論理積回路
とと、各論理積回路の出力側にそれぞれ接続された表示
装置とを備えたリミットスイッチの試験装置。
A first limit switch that operates at the detection position, a second limit switch that is inactive at the detection position, a first AND circuit (for detection) connected to both limit switches, and a second limit switch that is inactive at the detection position; a second AND circuit for position detection connected to the limit switch 1 and the second limit switch via a negative logic circuit; and a negative logic lr+1 to the second limit switch and the first limit switch.
a third AND circuit for position detection connected via a path;
a fourth AND circuit for open detection connected to each of the first and second limit switches via a negative logic circuit; and a display device connected to the output side of each AND circuit. Equipped with limit switch testing equipment.
JP56132684A 1981-08-26 1981-08-26 Testing device for limit switch Pending JPS5834373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56132684A JPS5834373A (en) 1981-08-26 1981-08-26 Testing device for limit switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56132684A JPS5834373A (en) 1981-08-26 1981-08-26 Testing device for limit switch

Publications (1)

Publication Number Publication Date
JPS5834373A true JPS5834373A (en) 1983-02-28

Family

ID=15087097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56132684A Pending JPS5834373A (en) 1981-08-26 1981-08-26 Testing device for limit switch

Country Status (1)

Country Link
JP (1) JPS5834373A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611915A1 (en) * 1987-02-27 1988-09-09 Mace Jacky DETECTOR OF ANOMALY OF OPERATION OF AN ELECTRIC, ELECTROTECHNICAL OR ELECTRONIC DEVICE
CN103969577A (en) * 2014-05-12 2014-08-06 上海宇航系统工程研究所 Universal carrier rocket travel switch testing tool
CN105067996A (en) * 2015-07-27 2015-11-18 南京科远自动化集团股份有限公司 Toggle switch detection method and detection system
CN106647237A (en) * 2016-12-13 2017-05-10 上海宇航系统工程研究所 Redundant pressure point switch compression device for carrier rocket
CN110375982A (en) * 2019-05-31 2019-10-25 武汉船用机械有限责任公司 Travel switch triggering precision detecting tool and detection method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611915A1 (en) * 1987-02-27 1988-09-09 Mace Jacky DETECTOR OF ANOMALY OF OPERATION OF AN ELECTRIC, ELECTROTECHNICAL OR ELECTRONIC DEVICE
CN103969577A (en) * 2014-05-12 2014-08-06 上海宇航系统工程研究所 Universal carrier rocket travel switch testing tool
CN103969577B (en) * 2014-05-12 2017-01-18 上海宇航系统工程研究所 Universal carrier rocket travel switch testing tool
CN105067996A (en) * 2015-07-27 2015-11-18 南京科远自动化集团股份有限公司 Toggle switch detection method and detection system
CN106647237A (en) * 2016-12-13 2017-05-10 上海宇航系统工程研究所 Redundant pressure point switch compression device for carrier rocket
CN106647237B (en) * 2016-12-13 2020-01-07 上海宇航系统工程研究所 A redundant pressure point switch closing device for carrier rocket
CN110375982A (en) * 2019-05-31 2019-10-25 武汉船用机械有限责任公司 Travel switch triggering precision detecting tool and detection method

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