CN203164373U - Detection circuit applied to multiway switch fault signal - Google Patents
Detection circuit applied to multiway switch fault signal Download PDFInfo
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- CN203164373U CN203164373U CN 201220650613 CN201220650613U CN203164373U CN 203164373 U CN203164373 U CN 203164373U CN 201220650613 CN201220650613 CN 201220650613 CN 201220650613 U CN201220650613 U CN 201220650613U CN 203164373 U CN203164373 U CN 203164373U
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Abstract
The utility model discloses a detection circuit applied to a multiway switch fault signal. A high voltage power supply is connected with a load through a switch device. The switch component is formed by connecting switches in series. Each switch is connected with a high voltage power supply and a PLC controller through a signal processing circuit. The number of external control circuit interfaces is reduced. The system response time is optimized. The number of input points of the control device can be reduced. The circuit is optimized. The cost is saved. The detection efficiency is improved.
Description
Technical field:
The utility model relates to a kind of testing circuit for the multi-way switch fault-signal.
Background technology
The development of power electronic devices technology at present is rapid, and gas switchs such as solid switch device replacement thyratron have become a kind of inexorable trend, and the application of solid switch device will be optimal selection.And based on the restriction of the present state of the art and other factors (technology, cost etc.), for the high-voltage large current application system, must adopt the mode of series connection and the combination in parallel of a plurality of solid switch devices, to reach the actual requirement that is suitable for.
The duty of switching device directly influences the performance of system, must the duty of each switching device be detected, and by the monitoring of PLC control device, meets the demands to guarantee overall performance.
Because switching device quantity is numerous and diverse, and is obviously unrealistic if single switch is sent to PLC as one group of signal separately, the input point quantity that needs is too many.
The utility model content
The utility model technical issues that need to address provide a kind of testing circuit for the multi-way switch fault-signal reaching the optimization system response time, and can reduce the input point quantity of control device, optimize the purpose of circuit.
In order to solve the problems of the technologies described above, the technical solution of the utility model is, a kind of testing circuit for the multi-way switch fault-signal, comprise high-voltage power supply, described high-voltage power supply is connected with load by switching device, described switch module is formed for the switch of series connection, and described each switch all is connected with the PLC controller with high-voltage power supply by signal processing circuit.
Described switching device comprises the switch composition of a plurality of series connection, and each tandem tap is composed in parallel by a plurality of switching tubes, and described switch feedback signal directly feeds back to signal processing circuit by switching device by light signal.
Described signal processing circuit comprises relay, AD converter N1, comparer N4, optocoupler N2 and optocoupler N3, the normally closed contact of described relay is connected with the 12V power supply by resistance R 1, the other end is by a plurality of resistance R 2 back ground connection of serial connection, 6 pin of described AD converter N1 are connected with 7 pin by capacitor C 1,4 pin of AD converter N1 are connected with the normally closed contact of relay by resistance R 5,3 pin are by potentiometer RP2, resistance R 8 ground connection, 8 pin are connected with 1 pin of optocoupler N2 by resistance R 3,8 pin also connect the 12V power supply, 7 pin are connected with 2 pin of optocoupler N2,3 pin of optocoupler N2 connect the PLC controller, 4 pin of optocoupler N2 connect the 24V power supply, 3 pin of described comparer N4 are by capacitor C 2 ground connection, 3 pin are connected with potentiometer RP1, the two ends of potentiometer RP1 are ground connection and 12V power supply respectively, 8 pin of comparer N4 are by resistance R 4, light emitting diode HL1 is connected with 1 pin of optocoupler N3,8 pin also are connected with the 12V power supply, 8 pin are connected by resistance R 9 with 7 pin, 7 pin of described comparer N4 are connected with the anode of diode V1, the negative electrode of diode V1 respectively with an end of resistance R 6, one end of capacitor C 4 is connected with the control end of controllable silicon V2, an other end of described resistance R 6 is connected then with the other end of capacitor C 4 and is connected with the negative electrode of controllable silicon V2, the plus earth of controllable silicon V2, the anode of described controllable silicon V2 is connected with 2 pin of optocoupler N3,1 pin of described comparer N4 and 4 pin ground connection, 7 pin are connected with 4 pin with 1 pin by capacitor C 3,2 pin of described comparer N4 are connected with the normally closed contact of relay by resistance R 7, and 4 pin of optocoupler N3 connect the 24V power supply, and 3 pin of optocoupler N3 connect the PLC controller.
The utility model compared with prior art, high-voltage power supply is connected with load by switching device, described switch module is formed for the switch of series connection, described each switch all is connected with the PLC controller with high-voltage power supply by signal processing circuit, reduces external control circuit interface quantity, the optimization system response time, and can reduce the input point quantity of control device, optimize circuit, provide cost savings, improved detection efficiency.
The utility model content
As shown in Figure 2, a kind of testing circuit for the multi-way switch fault-signal, comprise high-voltage power supply 1, described high-voltage power supply 1 is connected with load by switching device 2, described switching device 2 is formed for the switch of series connection, and described each switch all is connected with the PLC controller with high-voltage power supply 1 by signal processing circuit 3.
Described switching device comprises the switch of a plurality of series connection, and switch 1 ~ switch n is formed, and each tandem tap is composed in parallel by a plurality of switching tubes, and described switch feedback signal directly feeds back to signal processing circuit by switching device by light signal.
Described signal processing circuit comprises relay K 1 ~ Kn, AD converter N1, the model of N1 is AD654, comparer N4, the model of N4 is LM311, optocoupler N2 and optocoupler N3, the normally closed contact of described relay is connected with the 12V power supply by resistance R 1, the other end is by a plurality of resistance R 2 back ground connection of serial connection, 6 pin of described AD converter N1 are connected with 7 pin by capacitor C 1,4 pin of AD converter N1 are connected with the normally closed contact of relay by resistance R 5,3 pin are by potentiometer RP2, resistance R 8 ground connection, 8 pin are connected with 1 pin of optocoupler N2 by resistance R 3,8 pin also connect the 12V power supply, 1 pin is connected with 2 pin of optocoupler N2,3 pin of optocoupler N2 connect the PLC controller, 4 pin of optocoupler N2 connect the 24V power supply, 3 pin of described comparer N4 are by capacitor C 2 ground connection, 3 pin are connected with potentiometer RP1, the two ends of potentiometer RP1 are ground connection and 12V power supply respectively, 8 pin of comparer N4 are by resistance R 4, light emitting diode HL1 is connected with 1 pin of optocoupler N3,8 pin also are connected with the 12V power supply, 8 pin are connected by resistance R 9 with 7 pin, 7 pin of described comparer N4 are connected with the anode of diode V1, the negative electrode of diode V1 respectively with an end of resistance R 6, one end of capacitor C 4 is connected with the control end of controllable silicon V2, an other end of described resistance R 6 is connected then with the other end of capacitor C 4 and is connected with the negative electrode of controllable silicon V2, the plus earth of controllable silicon V2, and the anode of described controllable silicon V2 is connected with 2 pin of optocoupler N3,1 pin of described comparer N4 and 4 pin ground connection, 7 pin are connected with 4 pin with 1 pin by capacitor C 3, and described comparer N4 model is LM311, and 2 pin of N4 are connected with the normally closed contact of relay by resistance R 7,4 pin of optocoupler N3 connect the 24V power supply, and 3 pin of optocoupler N3 connect the PLC controller.
After the switching device fault-signal feeds back by fiber-optic signal in the assembly, the actuating of relay, the normally closed contact of relay correspondence will disconnect, its corresponding resistance R 2 will effectively seal in carries out dividing potential drop in the circuit, make A point current potential change, thereby realize the corresponding relation of switching device number of faults and A point current potential.
By regulator potentiometer RP2, AD converter N1, the model of N1 is AD654, and the A point voltage value of correspondence is converted to pulse signal, transmits the PLC control device, with the display module number of faults.
By potentiometer RP1 reference value is set, comparer N4, the model of N4 is the LM311 rotary movement, optocoupler N3 is passed to the PLC control device with fault-signal, thereby carries out system protection.
For improving the conversion accuracy of circuit, divider resistance should be selected the higher resistance of accuracy class, and is stable to guarantee analog-to-digital linear scaling.
This kind testing circuit has solved the various problem of detection components quantity effectively, reduces external control circuit interface quantity to a great extent, the optimization system response time, and can reduce the input point quantity of control device, optimize circuit.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is made and to be further described;
Fig. 1 is the utility model theory diagram
Fig. 2 is the utility model circuit diagram
In Fig. 1,1, high-voltage power supply, 2, switching device, 3, signal processing circuit, 4, the PLC controller.
Claims (3)
1. testing circuit that is used for the multi-way switch fault-signal, comprise high-voltage power supply (1), it is characterized in that: described high-voltage power supply (1) is connected with load by switching device (2), described switch module (2) is formed for the switch of series connection, and described each switch all is connected with the PLC controller with high-voltage power supply (1) by signal processing circuit (3).
2. a kind of testing circuit for the multi-way switch fault-signal according to claim 1, it is characterized in that: described switching device (2) comprises the switch composition of a plurality of series connection, each tandem tap is composed in parallel by a plurality of switching tubes, and described switch feedback signal directly feeds back to signal processing circuit by switching device by light signal.
3. a kind of testing circuit for the multi-way switch fault-signal according to claim 2, it is characterized in that: described signal processing circuit comprises relay, AD converter N1, comparer N4, optocoupler N2 and optocoupler N3, the normally closed contact of described relay is connected with the 12V power supply by resistance R 1, the other end is by a plurality of resistance R 2 back ground connection of serial connection, 6 pin of described AD converter N1 are connected with 7 pin by capacitor C 1,4 pin of AD converter N1 are connected with the normally closed contact of relay by resistance R 5,3 pin are by potentiometer RP2, resistance R 8 ground connection, 8 pin are connected with 1 pin of optocoupler N2 by resistance R 3,8 pin also connect the 12V power supply, 7 pin are connected with 2 pin of optocoupler N2,3 pin of optocoupler N2 connect the PLC controller, 4 pin of optocoupler N2 connect the 24V power supply, 3 pin of described comparer N4 are by capacitor C 2 ground connection, 3 pin are connected with potentiometer RP1, the two ends of potentiometer RP1 are ground connection and 12V power supply respectively, 8 pin of comparer N4 are by resistance R 4, light emitting diode HL1 is connected with 1 pin of optocoupler N3,8 pin also are connected with the 12V power supply, 8 pin are connected by resistance R 9 with 7 pin, 7 pin of described comparer N4 are connected with the anode of diode V1, the negative electrode of diode V1 respectively with an end of resistance R 6, one end of capacitor C 4 is connected with the control end of controllable silicon V2, an other end of described resistance R 6 is connected then with the other end of capacitor C 4 and is connected with the negative electrode of controllable silicon V2, the plus earth of controllable silicon V2, the anode of described controllable silicon V2 is connected with 2 pin of optocoupler N3,1 pin of described comparer N4 and 4 pin ground connection, 7 pin are connected with 4 pin with 1 pin by capacitor C 3,2 pin of described comparer N4 are connected with the normally closed contact of relay by resistance R 7,4 pin of optocoupler N3 connect the 24V power supply, and 3 pin of optocoupler N3 connect the PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650613 CN203164373U (en) | 2012-11-30 | 2012-11-30 | Detection circuit applied to multiway switch fault signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650613 CN203164373U (en) | 2012-11-30 | 2012-11-30 | Detection circuit applied to multiway switch fault signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203164373U true CN203164373U (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220650613 Expired - Lifetime CN203164373U (en) | 2012-11-30 | 2012-11-30 | Detection circuit applied to multiway switch fault signal |
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| Country | Link |
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| CN (1) | CN203164373U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501711A (en) * | 2016-10-20 | 2017-03-15 | 法乐第(北京)网络科技有限公司 | Abort situation detection method, device, accumulator cell assembly and motor vehicles |
| CN107179496A (en) * | 2016-03-10 | 2017-09-19 | 施耐德电气工业公司 | Method and apparatus for the state of detection switch |
| CN108765866A (en) * | 2018-03-09 | 2018-11-06 | 沈阳新松智能驱动股份有限公司 | A kind of servo-driver multiple alarm information synthesis method |
-
2012
- 2012-11-30 CN CN 201220650613 patent/CN203164373U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179496A (en) * | 2016-03-10 | 2017-09-19 | 施耐德电气工业公司 | Method and apparatus for the state of detection switch |
| CN106501711A (en) * | 2016-10-20 | 2017-03-15 | 法乐第(北京)网络科技有限公司 | Abort situation detection method, device, accumulator cell assembly and motor vehicles |
| CN108765866A (en) * | 2018-03-09 | 2018-11-06 | 沈阳新松智能驱动股份有限公司 | A kind of servo-driver multiple alarm information synthesis method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GLORYMV ELECTRONICS CO., LTD. Free format text: FORMER NAME: WUHU GLORYMV ELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 241009 Anhui city of Wuhu Province Economic and Technological Development Zone Jiuhua Road West Patentee after: GLORYMV ELECTRONICS Co.,Ltd. Address before: 241009 Anhui city of Wuhu Province Economic and Technological Development Zone Jiuhua Road West Patentee before: WUHU GLORYMV ELECTRONICS Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |