CN202196370U - Explosion-proof intrinsic safe combination switch logic control circuit for mining - Google Patents
Explosion-proof intrinsic safe combination switch logic control circuit for mining Download PDFInfo
- Publication number
- CN202196370U CN202196370U CN2011202203623U CN201120220362U CN202196370U CN 202196370 U CN202196370 U CN 202196370U CN 2011202203623 U CN2011202203623 U CN 2011202203623U CN 201120220362 U CN201120220362 U CN 201120220362U CN 202196370 U CN202196370 U CN 202196370U
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- China
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- control
- explosion
- control circuit
- switch logic
- control units
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- Expired - Fee Related
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Abstract
The utility model provides an explosion-proof intrinsic safe combination switch logic control circuit for mining, which is characterized by comprising at least two observing and control units. The at least two observing and control units are connected with a multi-combination control unit with at least two built-in control units simultaneously, and the number of the control units inside the multi-combination control unit equals to that of the observing and control units. Each control unit is connected with different observing and control protection units through an independent communication interface or an optical fiber interface, and an industrial control screen is connected with the multi-combination control unit. All return circuits connected with the multi-combination control unit are parallel, and therefore a logic mode can be set and combined optionally. The explosion-proof intrinsic safe combination switch logic control circuit has the advantages of being simple in electric structure and failure dealing method, simple in wiring, small in volume, and flexible in use.
Description
Technical field
The utility model relates to a kind of logic control circuit that is applicable to mine flameproof and intrinsic safety type combined switch under the coal mine.
Background technology
The fixed installation of the many employings of combined switch major loop under the coal mine, logic control then adopts a slice PLC to control.When this caused wherein any loop to be broken down, the fault eliminating cycle was long.Owing to adopt a slice PLC control; The operation circuit complex connection that causes device interior; Arbitrarily circuit loose contact or get loose and promptly cause equipment set normally not move; Be unfavorable for the application of multi-loop combined switch, and the mode of operation in each loop configured when dispatching from the factory, be unfavorable for on-the-spot flexible Application.
Summary of the invention
It is simple that the purpose of the utility model is to provide a kind of circuit to connect, and the loop Shi Buhui that breaks down influences the logic control circuit in other loops arbitrarily.
In order to achieve the above object; The technical scheme of the utility model has provided a kind of mining intrinsic safety type waterproof numeric keypad; It is characterized in that: comprise at least two monitoring and protection unit; At least two monitoring and protection unit connect many group control units of built-in at least two control modules simultaneously; Control module number in many group control units is identical with measurement and control unit, and each control module all pass through one independently communication interface or optical fiber interface are continuous with different monitoring and protection unit, and industry control is shielded and linked to each other with many group control units
Further, said communication interface is the RS485 communication interface.
All loops that many group control units of the utility model connect are for parallel, so logical schema can be set arbitrarily, make up.The utility model has the advantages that electrical structure and fault method of disposal are simple, wiring is succinct, and volume is little, uses flexibly.
Description of drawings
A kind of mine explosion-suppression essential safe type combined switch logic control circuit synoptic diagram that Fig. 1 provides for the utility model.
Embodiment
Embodiment
As shown in Figure 1; A kind of mining intrinsic safety type waterproof numeric keypad that provides for the utility model; Comprise 12 monitoring and protection unit 1; 12 monitoring and protection unit 1 connect many group control units 2 of built-in 12 control modules simultaneously, each control module all pass through one independently RS485 communication interface or optical fiber interface link to each other with different monitoring and protection unit 1, industry control screen 3 links to each other with many group control units 2.
Monitoring and protection unit 1 has overload, overcurrent, the phase failure, three-phase imbalance, under-voltage, earth leakage search/lockout defencive function; And can carry out communication through RS485 or optical fiber interface with many group control units 2, upload current state parameter, malfunction and receive the control command that issues.Many group control units 2 have 12 tunnel PORT COMs independently; And be solidified with current logic control mode; Logic working through RS485 or 12 the built-in monitoring and protection of module unit 1 of optical fiber interface control is sent to industry control screen 3 to the current state parameter, malfunction and the current logic control mode that read from the built-in monitoring and protection of module unit 1 through the RS232 communication interface.Industry control screen 3 can show the logic working pattern of combined switch; Current state parameter, the malfunction of each built-in monitoring and protection unit 1; And can carry out parameter tuning and mode initialization through parameter tuning and mode initialization interface, and logical RS232 communication interface is issued to many group control units 2.
Claims (2)
1. mine explosion-suppression essential safe type combined switch logic control circuit; It is characterized in that: comprise at least two monitoring and protection unit (1); At least two monitoring and protection unit (1) connect many group control units (2) of built-in at least two control modules simultaneously; Control module number in many group control units (2) is identical with measurement and control unit (1); And each control module all pass through one independently communication interface or optical fiber interface link to each other with different monitoring and protection unit (1), industry control screen (3) links to each other with many group control units (2).
2. a kind of mine explosion-suppression essential safe type combined switch logic control circuit as claimed in claim 1, it is characterized in that: said communication interface is the RS485 communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202203623U CN202196370U (en) | 2011-06-27 | 2011-06-27 | Explosion-proof intrinsic safe combination switch logic control circuit for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202203623U CN202196370U (en) | 2011-06-27 | 2011-06-27 | Explosion-proof intrinsic safe combination switch logic control circuit for mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196370U true CN202196370U (en) | 2012-04-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202203623U Expired - Fee Related CN202196370U (en) | 2011-06-27 | 2011-06-27 | Explosion-proof intrinsic safe combination switch logic control circuit for mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202196370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778870A (en) * | 2012-06-29 | 2012-11-14 | 深圳市英威腾电气股份有限公司 | Method and system for realizing security protection function on electric-drive device |
-
2011
- 2011-06-27 CN CN2011202203623U patent/CN202196370U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778870A (en) * | 2012-06-29 | 2012-11-14 | 深圳市英威腾电气股份有限公司 | Method and system for realizing security protection function on electric-drive device |
| CN102778870B (en) * | 2012-06-29 | 2015-01-14 | 深圳市英威腾电气股份有限公司 | Method and system for realizing security protection function on electric-drive device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20200627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |