CN204497714U - Sequential firing loop - Google Patents
Sequential firing loop Download PDFInfo
- Publication number
- CN204497714U CN204497714U CN201520226354.8U CN201520226354U CN204497714U CN 204497714 U CN204497714 U CN 204497714U CN 201520226354 U CN201520226354 U CN 201520226354U CN 204497714 U CN204497714 U CN 204497714U
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- CN
- China
- Prior art keywords
- relay
- loop
- normally opened
- opened contact
- controlled cell
- 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.)
- Withdrawn - After Issue
Links
- 238000010304 firing Methods 0.000 title claims abstract description 20
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Abstract
A kind of sequential firing loop, for automation field.Power supply circuit, sequential firing loop, controlled cell loop are serially connected, and the starting switch PB in sequential firing loop is made up of normally opened contact and normally-closed contact; The load in the main power source of power supply circuit and relay R 1 normally opened contact one, relay R 1 normally opened contact two, controlled cell loop is serially connected.The utility model forms simple sequential firing loop by starting switch, emergency stop switch and relay etc., is serially connected in the middle of power supply circuit and controlled cell loop and uses.Under normal circumstances, starting switch directly controls controlled cell loop.Recover after main power source dead electricity; or when resetting again after emergent stopping; controlled cell loop can not be started automatically; controlled cell loop normal starting just must can be made according to certain operating sequence; the power-off protection function realizing controlled cell can be easy to, also can not affect the normal function of starting switch simultaneously.
Description
Technical field
The utility model relates to automatic control technology field, specifically a kind of hardware-in-the-loop that must start in order, and when recovering again after external power source power-off, can not cause the self-running protective loop of equipment.
Background technology
The starting switch of existing band maintenance, under powering-off state, can not cutoff circuit, when power supply recovers again, in check loop also can obtain electric, causes equipment self-starting, without power-off protection function.
Summary of the invention
For overcoming the deficiencies in the prior art, goal of the invention of the present utility model is to provide a kind of sequential firing loop, can realize the sequential firing in loop, and after external power source power-off recovers again, can not cause equipment self-starting.
For achieving the above object, power supply circuit of the present utility model, sequential firing loop, controlled cell loop are serially connected; The starting switch PB in described sequential firing loop is made up of normally opened contact and normally-closed contact; Relay R 1 is made up of relay R 1 coil and relay R 1 normally opened contact one, relay R 1 normally opened contact two; Relay R 2 is made up of relay R 2 coil, relay R 2 normally opened contact one, relay R 2 normally opened contact two; The load in the main power source of power supply circuit and relay R 1 normally opened contact one, relay R 1 normally opened contact two, controlled cell loop is serially connected; Starting switch PB normally opened contact, relay R 2 normally opened contact one, relay R 1 coils connected in series, starting switch PB normally opened contact is connected with the two ends of main power source respectively with the other end of relay R 1 coil; Starting switch PB normally-closed contact, emergency stop switch EMG normally-closed contact, relay R 2 coils connected in series, relay R 2 normally opened contact two is also connected in the two ends of starting switch PB normally-closed contact, and starting switch PB normally-closed contact is connected with the two ends of main power source respectively with the other end of relay R 2 coil; At main power source normal power supply and emergency stop switch EMG reset time, press starting switch PB, controlled cell loop obtains electric, close start switch P B, the power-off of controlled cell loop; When restoring electricity after main power source dead electricity, or when resetting again after emergency stop switch EMG action, controlled cell loop can not thereupon electric, starting switch PB action again, could start controlled cell loop.
The utility model compared with prior art; simple electric loop is formed by starting switch, emergency stop switch and relay etc.; recover after main power source dead electricity; or when resetting again after emergent stopping; controlled cell loop can not be started automatically; just must can make controlled cell loop normal starting according to certain operating sequence, the power-off protection function realizing controlled cell can be easy to, also can not affect the normal function of starting switch simultaneously.
Accompanying drawing explanation
Fig. 1 is electrical structure diagram of the present utility model.
Fig. 2 is the schematic diagram of the utility model sequential firing.
Embodiment
As shown in Figure 1 and Figure 2, the utility model is made up of power supply circuit 1, sequential firing loop 2, controlled cell loop 3, power supply circuit 1 is the part providing electric energy to controlled cell loop 3 and sequential firing loop 2, controlled cell loop 3 is the electric energy receiving sequential firing loop 2 output, make the part that controlled cell starts, power supply circuit 1, sequential firing loop 2, controlled cell loop 3 are serially connected.
The starting switch PB in sequential firing loop 2 is made up of normally opened contact 6 and normally-closed contact 9; Relay R 1 is made up of with relay R 1 normally opened contact 1, relay R 1 normally opened contact 2 14 relay R 1 coil 8; Relay R 2 is made up of relay R 2 coil 12, relay R 2 normally opened contact 1, relay R 2 normally opened contact 2 10; The main power source 4 of power supply circuit 1 is serially connected with the load 5 in relay R 1 normally opened contact 1, relay R 1 normally opened contact 2 14, controlled cell loop 3; Starting switch PB normally opened contact 6, relay R 2 normally opened contact 1, relay R 1 coil 8 are connected, and starting switch PB normally opened contact 6 is connected with the two ends of main power source 4 respectively with the other end of relay R 1 coil 8; Starting switch PB normally-closed contact 9, emergency stop switch EMG normally-closed contact 11, relay R 2 coil 12 are connected, relay R 2 normally opened contact 2 10 is also connected in the two ends of starting switch PB normally-closed contact 9, and starting switch PB normally-closed contact 9 is connected with the two ends of main power source 4 respectively with the other end of relay R 2 coil 12.
Power supply circuit 1 is for DC power supply 4 below, and controlled cell loop 3, for bulb 5, illustrates each function of the present utility model.
1. normal starting function: main power source 4 normal power supply, emergency stop switch EMG is in the state of reset, and emergency stop switch EMG normally-closed contact 11 closes; Starting switch PB is in closed condition, and its normally opened contact 6 disconnects, and normally-closed contact 9 closes; Now relay R 2 obtains electric, and relay R 2 normally opened contact 1, relay R 2 normally opened contact 2 10 close, and after pressing starting switch PB, its normally opened contact 6 closes, and normally-closed contact 9 disconnects; Relay R 1 coil 8 obtains electric, and relay R 1 normally opened contact 1, relay R 1 normally opened contact 2 14 close, and controlled cell loop 3 obtains electric, and bulb (load 5) is lighted.
2. normal switch holding function: after having started, bulb (load 5) is lighted.When starting switch PB closes, its normally opened contact 6 disconnects, and normally-closed contact 9 closes, then relay R 1 coil 8 power-off, and relay R 1 normally opened contact 1, relay R 1 normally opened contact 2 14 disconnect, controlled cell loop 3 power-off, and bulb (load 5) extinguishes; If press starting switch PB, normally opened contact 6 closes, and normally-closed contact 9 disconnects, and relay R 1 coil 8 obtains electric, and relay R 1 normally opened contact 1, relay R 1 normally opened contact 2 14 close, and controlled cell loop 3 obtains electric, and bulb (load 5) is lighted.In this case, the state that controlled cell loop 3 works is controlled by starting switch PB.
3. power-off protection function: after having started, bulb (load 5) is lighted.When main power source 4 dead electricity (abnormal generation), then relay R 1 coil 8 and the power-off simultaneously of relay R 2 coil 12, relay R 1 normally opened contact 1, relay R 1 normally opened contact 2 14 disconnect, relay R 2 normally opened contact 1, relay R 2 normally opened contact 2 10 disconnect, controlled cell loop 3 power-off, bulb (load 5) extinguishes.If main power source 4 recovers, because starting switch PB is in on-state, its normally opened contact 6 closes, normally-closed contact 9 disconnects, and emergency stop switch EMG is in the state of reset, and emergency stop switch normally-closed contact 11 closes, relay R 2 coil 12 can not obtain electric, relay R 2 normally opened contact 1, relay R 2 normally opened contact 2 10 disconnect, then relay R 1 coil 8 also can not obtain electric, and relay R 1 normally opened contact 1, relay R 1 normally opened contact 2 14 disconnect.Like this, even if starting switch PB is in on-state at present, controlled cell loop 3 also can not obtain electric because of the recovery of main power source 4, bulb (load 5) extinguishes.
4. sequential firing function: after having started, bulb (load 5) is lighted.When emergency stop switch EMG is pressed (abnormal generation), emergency stop switch EMG normally-closed contact 11 disconnects, then relay R 2 coil 12 power-off, relay R 2 normally opened contact 1, relay R 2 normally opened contact 2 10 disconnect, thus make the power-off of relay R 1 coil 8, relay R 1 normally opened contact 1, relay R 1 normally opened contact 2 14 disconnect, controlled cell loop 3 also power-off, and bulb (load 5) extinguishes.If now reset emergency stop switch EMG, emergency stop switch EMG normally-closed contact 11 closes, because starting switch PB is in on-state, its normally opened contact 6 closes, normally-closed contact 9 disconnects, the power-off of relay R 2 coil 12, and relay R 2 normally opened contact 1, relay R 2 normally opened contact 2 10 disconnect, so relay R 1 coil 8 also can not obtain electric, relay R 1 normally opened contact 1, relay R 1 normally opened contact 2 14 disconnect.Like this, even if starting switch PB is in logical state at present, controlled cell loop 3 also can not obtain electric because of the reset of emergency stop switch EMG, bulb (load 5) extinguishes.
Below 3., 4. two kinds of situations, if need normal starting, just controlled cell loop 3 just can must be made to connect by 1. fixing sequence of movement, with reach occur abnormal after, the not self-running object in protection controlled cell loop 3.
Claims (1)
1. a sequential firing loop, is characterized in that: power supply circuit (1), sequential firing loop (2), controlled cell loop (3) are serially connected; The starting switch PB of described sequential firing loop (2) is made up of normally opened contact (6) and normally-closed contact (9); Relay R 1 is made up of relay R 1 coil (8) and relay R 1 normally opened contact one (13), relay R 1 normally opened contact two (14); Relay R 2 is made up of relay R 2 coil (12), relay R 2 normally opened contact one (7), relay R 2 normally opened contact two (10); The main power source (4) of power supply circuit (1) is serially connected with the load (5) of relay R 1 normally opened contact one (13), relay R 1 normally opened contact two (14), controlled cell loop (3); Starting switch PB normally opened contact (6), relay R 2 normally opened contact one (7), relay R 1 coil (8) are connected, and starting switch PB normally opened contact (6) is connected with the two ends of main power source (4) respectively with the other end of relay R 1 coil (8); Starting switch PB normally-closed contact (9), emergency stop switch EMG normally-closed contact (11), relay R 2 coil (12) are connected, relay R 2 normally opened contact two (10) is also connected in the two ends of starting switch PB normally-closed contact (9), and starting switch PB normally-closed contact (9) is connected with the two ends of main power source (4) respectively with the other end of relay R 2 coil (12); At main power source (4) normal power supply and emergency stop switch EMG reset time, press starting switch PB, controlled cell loop (3) electric, close start switch P B, controlled cell loop (3) power-off; When restoring electricity after main power source (4) dead electricity, or when resetting again after emergency stop switch EMG action, controlled cell loop (3) can not thereupon electric, starting switch PB action again, could start controlled cell loop (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520226354.8U CN204497714U (en) | 2015-04-15 | 2015-04-15 | Sequential firing loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520226354.8U CN204497714U (en) | 2015-04-15 | 2015-04-15 | Sequential firing loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204497714U true CN204497714U (en) | 2015-07-22 |
Family
ID=53577002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520226354.8U Withdrawn - After Issue CN204497714U (en) | 2015-04-15 | 2015-04-15 | Sequential firing loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204497714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990814A (en) * | 2015-04-15 | 2016-10-05 | 中日龙(襄阳)机电技术开发有限公司 | Sequential start loop |
-
2015
- 2015-04-15 CN CN201520226354.8U patent/CN204497714U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990814A (en) * | 2015-04-15 | 2016-10-05 | 中日龙(襄阳)机电技术开发有限公司 | Sequential start loop |
| CN105990814B (en) * | 2015-04-15 | 2018-05-01 | 中日龙(襄阳)机电技术开发有限公司 | Sequential firing circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20180501 |