CN103529712A - Double-loop sequence control circuit - Google Patents
Double-loop sequence control circuit Download PDFInfo
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- CN103529712A CN103529712A CN201210226112.XA CN201210226112A CN103529712A CN 103529712 A CN103529712 A CN 103529712A CN 201210226112 A CN201210226112 A CN 201210226112A CN 103529712 A CN103529712 A CN 103529712A
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Abstract
A double-loop sequence control circuit comprises a master control box and a sub control box which is controlled by the master control box for starting and stopping. The sub control box is composed of a first motion box, at least one secondary motion box and a final motion box. A mater control loop of the master control box is provided with a switch, a starting button and a stopping button. The master control loop is connected with the starting circuit of the first motion box, the starting circuit of the secondary motion box and the starting circuit of the final motion box. Each starting circuit comprises a starting relay which is connected with the master control loop. The starting relay is serially connected with a normally open contact and an intermediate relay I of the starting relay. The normally open contact of the intermediate relay is arranged in an executing circuit. The executing circuit is composed of executing relays which are serially connected with the normally open contact of the intermediate relay I. The normally open contacts of the executing contacts are arranged in a time delay circuit. The time delay circuit comprises time relays which are serially connected with the normally open contact of the executing relays. The normally open contacts of the time relays are arranged in the starting circuit of a next-stage sub control box.
Description
Technical field
The present invention relates to a kind of control circuit that can control a plurality of controlled points.
Background technology
For the sequential control of a plurality of controlled points, as the sequential control of many conveying belt, way is in the past with a multi-core controlled cable, and each minute switch board and master control cabinet are coupled together.Also have kind of a way be with advanced digital electronic device as PLC, computers etc., could realize the shut-down operation of sequence starting backward.For existing control method, the core number of control cables increases with the increase of controlled point, do like this shield between line many and complicated, inconvenient maintenance, cost is also high.
Summary of the invention
The object of this invention is to provide a kind of needs to use this simple Devices of line between traditional relay and 4-5 bar screen, just can realize the control circuit of sequence starting backward shut-down operation.
For achieving the above object, the present invention is by the following technical solutions:
A sequencing circuit, it comprises Main Control Tank and the sub-control box of being controlled start and stop by Main Control Tank, described sub-control box is comprised of the moving case of head, at least one moving case and a moving case in end; Switch, start button and stop button are set in the main control loop of driving headstock; Described main control loop connects the start-up circuit of first moving case, the moving case of inferior moving case and end; Each start-up circuit includes the starting relay being connected with main control loop, and starting relay and starting relay normally opened contact, auxiliary reclay I are connected in series, and auxiliary reclay I normally opened contact is arranged in executive circuit; Described executive circuit consists of the execution relay being connected in series with auxiliary reclay I normally opened contact; Carry out relay normally open contact and be arranged in time delay circuit, described time delay circuit comprises the time relay being connected in series with execution relay normally open contact, and time relay normally opened contact is arranged in the start-up circuit of next stage sub-control box; Wherein, n is natural number, and n is corresponding one by one with the sequence number of sub-control box.
In each sub-control box, be also provided with hand push button, hand push button is connected in series with manual relay, and manually relay normally closed contact is arranged in the start-up circuit of each sub-control box; In described start-up circuit, be also arranged in parallel manual actuation of button and manual stop button, and manual actuation of button and the manual stop button manual relay normally closed contact of connecting respectively.
Order stop button is set in described Main Control Tank; When order stop button is pressed, the work of order slew relay, order slew relay normally opened contact connects the auxiliary reclay II of the moving case in end, auxiliary reclay II normally opened contact and delayed relay are connected in series, delayed relay normally closed contact is connected in the start-up circuit of sub-control box at the corresponding levels, and delayed relay normally opened contact connects the auxiliary reclay II of upper level sub-control box.
Adopt the present invention of technique scheme, the method for operation of controlling for the remote linear order of placement of multiple devices, adopts two-circuit method, only, by line between traditional relay and a small amount of screen, just can carry out the shut-down operation of sequence starting backward.Control system comprises Main Control Tank and sub-control box.Each sub-control box has manual function, can to single device, carry out start stop operation at the scene, is also provided with on-the-spot emergency braking device, in order in case of emergency to stop the relevant device of faulty equipment and faulty equipment upstream.Control cables between each control box is common 5 cores or 4 core cables, and the quantity of cable core number and sub-control box is disproportionate.The time relay that electric elements in each control box are traditional relay and coordinate with it.Sub-control box is controlled power supply and is supplied with by main control box, while needing scene to operate single device, the selector switch of this sub-control box is forwarded to manual position, can carry out the start stop operation of single device.When (online) moved automatically, the selector switch on every sub-control box is all forwarded to automated location, can carry out at Main Control Tank the order start stop operation of all devices.This system can be divided into two kinds according to purposes difference:
A. two-circuit four line sequencing circuits, for the sequential control of a plurality of controlled points, do not need digital electron device, and between screen, line only needs 4 core cables, can complete sequence starting process, can not carry out backward and stop, field control screen has hand from switch, can carry out manual operation.Under auto state, single device cancel closedown, on upstream device, without impact, upstream all devices is shut down.
B two-circuit five line sequencing circuits, for the sequential control of a plurality of controlled points, do not need digital electron device, and between screen, line only needs 5 core cables, can complete sequence starting process, also can carry out backward and stop, field control screen has hand from switch, can carry out manual operation.Under auto state, single device cancel closedown, on upstream device, without impact, upstream all devices is shut down.
In a word, the inventive method is simple, reliable, easy to maintenance, and cost is low.
Accompanying drawing explanation
Fig. 1 is two-circuit four line sequencing circuit figure in the present invention.
Fig. 2 is two-circuit five line sequencing circuit figure in the present invention.
Embodiment
A kind of two-circuit sequencing circuit, it comprises Main Control Tank 1 and the sub-control box of being controlled start and stop by Main Control Tank, sub-control box is comprised of the moving case 2 of head, at least one moving case 3 and a moving case 4 in end, and first moving case is five-star sub-control box, the moving case 4 in end is first degree sub-control box, when breakdown action, from the moving case of head, to end, moving case moves successively.
Switch QF, start button TA and stop button TB are set in the main control loop of driving headstock 1, and wherein switch QF is arranged between the L line and N line of three-phase electricity; Start button TA and stop button TB are separately positioned on L line.Above-mentioned main control loop connects the start-up circuit of first moving case 2, the moving case 4 of inferior moving case 3 and end.Each start-up circuit includes the starting relay KA1n being connected with main control loop, and starting relay KA1n and starting relay normally opened contact KA1n-1, auxiliary reclay I KA3n are connected in series.Above-mentioned auxiliary reclay I normally opened contact KA3n-1 is arranged in executive circuit, executive circuit consists of the execution relay K Mn being connected in series with auxiliary reclay I normally opened contact KA3n-1, carry out relay normally closed contact KMn-2 and be connected in start-up circuit, carry out relay normally open contact KMn-1 and be arranged in time delay circuit.Above-mentioned time delay circuit comprises the time relay KT1n being connected in series with execution relay normally open contact KMn-1, time relay normally opened contact KT1n-1 is arranged in the start-up circuit of next stage sub-control box, like this, the execution relay that just can realize first moving case 2 first moves, the then action of inferior moving case 3, the control model of the moving case 4 last actions in end.In the present invention, n is natural number, and n is corresponding one by one with the sequence number of sub-control box, that is: n=1 in first moving case; N=2 in inferior moving case, 3 ... n-1; In the moving case in end, be n.
The two-circuit four line sequential control circuits of take are example, and the moving case of a head is set, two moving casees, a moving case in end, as shown in Figure 1, after equipment installation end inspection is errorless, during interlock, the interior switch QF of the Main Control Tank that closes, the power light in Main Control Tank is bright, and operating loop L3 and L2 obtain electric; Press start button TA, loop L1 and L2 work, make the starting relay KA1n in start-up circuit in each sub-control box obtain electric adhesive.In the moving case 2 of head, auxiliary reclay I KA31 obtains electric adhesive self-insurance, and the KA3n loop of other sub-control box is obstructed, can not adhesive.Now, auxiliary reclay I normally opened contact KA31-1 is closed, connects and carries out relay K M1, carries out relay K M1 action, first moving startup.Carry out after relay K M1 action simultaneously, connect the time relay KT11 in first moving case, after the time of one section of setting, time relay normally opened contact KT11-1 action, connects the auxiliary reclay I KA32 loop in time moving case 2, and the auxiliary reclay I KA32 in inferior moving case obtains electric adhesive, auxiliary reclay I normally opened contact KA32-1 is closed, connect and carry out relay K M2, carry out relay K M2, at the corresponding levels moving startup.Carry out after relay K M2 action simultaneously, turn-on time relay K T12, after the time of one section of setting, time relay normally opened contact KT12-1 is closed, connects next stage sub-control box.By that analogy, after the action of the upper level time relay, will connect the KA3 loop of next stage, until the moving case in end.After the moving case release in end, the time relay KT1n of the moving case in end will connect a pilot lamp of Main Control Tank, and order of representation has started.At this moment can unclamp start button TA, start loop L1 power-off, the starting relay KA1n in each sub-control box discharges, four line control circuits can not sequentially stop, so while needing arrestment, press stop button TB, operating loop L3 power-off, all devices stops simultaneously.
In real work, need at the scene single device to carry out start stop operation, the present invention is provided with hand-operating device.In each sub-control box, be provided with hand push button M/An, hand push button M/An and manual relay K A2n are connected in series, and manually relay normally closed contact KA2n-1, KA2n-2 are arranged in the start-up circuit of each sub-control box.Manual actuation of button BM1n and manual stop button BM2n in start-up circuit, have also been arranged in parallel, and manual actuation of button BM1n connects with manual relay normally closed contact KA2n-4, and manually stop button BM2n and another manual relay normally closed contact KA2n-3 are connected in series.When needs carry out start stop operation to single device at the scene, the switch QF closing in Main Control Tank, the selection button M/An that need to carry out on the sub-control box of single device start and stop is forwarded to manual position, at this moment manually relay K A2n action, manually relay normally closed contact KA2n-1, KA2n-2 all disconnect, thereby the starting relay KA1n in start-up circuit is disconnected; And manually relay normally closed contact KA2n-3, KA2n-4 connect BM1n and BM2n loop, make this sub-control box possess manual start and stop condition, at this moment, press manual actuation of button BM1n, auxiliary reclay I KA3n obtains electric, connect and carry out relay K Mn, manually booted, while stopping, having pressed stop button BM2n, auxiliary reclay I KA3n loop disconnects, and KMn stops.
Above-mentioned technical scheme can only realize sequence starting, and can not realization sequentially stop.For realization better sequentially stops, the present invention is at the interior order stop button BS that arranges of Main Control Tank 1; When order stop button BS presses, order slew relay KS work, order slew relay normally opened contact KS-3 connects the auxiliary reclay II KA4n of the moving case 4 in end, auxiliary reclay II normally opened contact KA4n-1 and delayed relay KT2n are connected in series, delayed relay normally closed contact KT2n-1 is connected in the start-up circuit of sub-control box at the corresponding levels, and delayed relay normally opened contact KT2n-2 connects the auxiliary reclay II of upper level sub-control box.Specifically, be illustrated in figure 2 two-circuit five line sequencing circuits, it arranges the moving case 2 of 1, one head of a Main Control Tank, moving case 3 and a moving case 4 in end.It should be noted that, here first first moving case 2 starts, but finally stops; The moving case 4 in end finally starts, but first stops.Concrete course of action is as follows: after equipment installation end inspection is errorless, and during interlock, switch QF in the Main Control Tank that closes, power light in Main Control Tank is bright, operating loop L3 and L2 obtain electric, press start button TA, and the starting relay KA1n starting in loop L1 and each sub-control box of L2 obtains electric adhesive.Now, the auxiliary reclay I KA31 in first moving case obtains electric adhesive self-insurance, and the auxiliary reclay I KA3n loop of other sub-control box is obstructed, can not adhesive.In first moving case, auxiliary reclay I normally opened contact KA31-1 is closed, connects and carries out relay K M1, carries out relay K M1 action, first moving startup.Carry out after relay K M1 action simultaneously, connect the time relay KT11 in first moving case, after the time of one section of setting, time relay KT11 action, time relay normally opened contact KT11-1 time closing, connect the auxiliary reclay I KA3n loop in time moving case, auxiliary reclay I KA32 in inferior moving case obtains electric adhesive, and auxiliary reclay I normally opened contact KA32-1 is closed, connects and carries out relay K M2, carry out relay K M2 action, at the corresponding levels moving startup.Carry out after relay K M2 action simultaneously, turn-on time relay K T12, after the time of one section of setting, time relay normally opened contact KT12-1 time closing, connects next stage sub-control box KA3 loop.By that analogy, after the action of the upper level time relay, will connect the KA3 loop of next stage, until the moving case in end.After the moving case release in end, the time relay KT14 of the moving case in end will connect a pilot lamp of Main Control Tank, and order of representation has started.At this moment can unclamp start button TA, start loop L1 power-off, the starting relay KA1n in each sub-control box discharges.Five line control circuits can sequentially stop, so while needing order arrestment, press order stop button BS, connect the relay K A in Main Control Tank, relay normally open contact KA-1 connection order slew relay KS, order slew relay KS connects and passes through the normally opened contact self-insurance of oneself.Simultaneously, it is the auxiliary reclay II KA44 loop in the moving case 4 in end that order slew relay normally opened contact KS-3 connects the first sub-control box that stops, auxiliary reclay II normally opened contact KA44-1 connects the first timing relay KT24 in case that stops, after the time of one section of setting, timing relay normally closed contact KT24-1 time delay disconnects KA34 loop, and auxiliary reclay I KA34 dead electricity discharges, and auxiliary reclay I normally opened contact KA34-1 disconnects, carry out relay K M4 dead electricity and discharge, the moving case in end has quit work.Simultaneously, timing relay KT24 is after the time of this section of setting, time closing normally opened contact KT24-2 connects the KA42 loop in time moving case, process time is stopped the timing relay KT22 in case, complete the action that stops of time moving case, by that analogy, after the stand-by time actuating of relay of next stage, will connect the KA4n loop of upper level, until case is stopped at end.
Here it is to be noted time relay KT in Main Control Tank, its time setting value will equal or be slightly larger than the summation of all sub-control box stand-by times, after all devices all stops, the setting-up time of this time relay also arrives, so the time delay break contact of time relay KT disconnects operating loop L3, all relay electric-loss discharge.While not needing order to stop, pressing stop button BA2, stop loop L3 power-off, all devices stops simultaneously.When needs carry out start stop operation to single device at the scene, the switch QF closing in Main Control Tank, the selection button M/An that need to carry out on the sub-control box of single device start and stop is forwarded to manual position, at this moment manually relay K A2n action, normally closed (moving opening) contact disconnects, starting relay KA1n loop is disconnected, and manually the normally opened contact of relay K A2n is connected and is manually booted BM1n and BM2n loop simultaneously, makes this sub-control box possess manual start and stop condition.At this moment, press manual actuation of button BM1, auxiliary reclay I KA3n obtains electric, connects KMn, has manually booted, and while stopping, pressing stop button BM2n, and auxiliary reclay I KA3n loop disconnects, and KMn stops.
Emergent stopping; during on-line execute, when any device fails wherein, disconnect the emergency stop switch EMn of this equipment; the all devices of this equipment Ji Gai equipment subordinate (near Main Control Tank side) is just all shut down, and this equipment higher level (away from Main Control Tank side) all devices can normal operation.
Claims (3)
1. a two-circuit sequencing circuit, it comprises Main Control Tank (1) and the sub-control box of being controlled start and stop by Main Control Tank, described sub-control box moves case (4) by the moving case (2) of head, at least one moving case (3) and an end and forms; It is characterized in that: switch (QF), start button (TA) and stop button (TB) are set in the main control loop of driving headstock (1); Described main control loop connects the start-up circuit of first moving case (2), the moving case (4) of inferior moving case (3) and end; Each start-up circuit includes the starting relay (KA1n) being connected with main control loop, starting relay (KA1n) is connected in series with starting relay normally opened contact (KA1n-1), auxiliary reclay I (KA3n), and auxiliary reclay I normally opened contact (KA3n-1) is arranged in executive circuit; Described executive circuit consists of the execution relay (KMn) being connected in series with auxiliary reclay I normally opened contact (KA3n-1); Carrying out relay normally open contact (KMn-1) is arranged in time delay circuit, described time delay circuit comprises the time relay (KT1n) being connected in series with execution relay normally open contact (KMn-1), and time relay normally opened contact (KT1n-1) is arranged in the start-up circuit of next stage sub-control box; Wherein, n is natural number, and n is corresponding one by one with the sequence number of sub-control box.
2. two-circuit according to claim 1 sequencing circuit, it is characterized in that: in each sub-control box, be also provided with hand push button (M/An), hand push button (M/An) is connected in series with manual relay (KA2n), and manually relay normally closed contact (KA2n-2) is arranged in the start-up circuit of each sub-control box; Manual actuation of button (BM1n) and manual stop button (BM2n) in described start-up circuit, have also been arranged in parallel, and manual actuation of button (BM1n) and manually stop button (BM2n) the manual relay normally closed contact (KA2n-3, KA2n-4) of connecting respectively.
3. two-circuit according to claim 2 sequencing circuit, is characterized in that: order stop button (BS) is set in described Main Control Tank (1); When order stop button (BS) is pressed, order slew relay (KS) work, order slew relay normally opened contact (KS-3) connects the auxiliary reclay II (KA4n) of the moving case (4) in end, auxiliary reclay II normally opened contact (KA4n-1) is connected in series with delayed relay (KT2n), delayed relay normally closed contact (KT2n-1) is connected in the start-up circuit of sub-control box at the corresponding levels, and delayed relay normally opened contact (KT2n-2) connects the auxiliary reclay II of upper level sub-control box.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210226112.XA CN103529712B (en) | 2012-07-03 | 2012-07-03 | Double loop sequencing circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210226112.XA CN103529712B (en) | 2012-07-03 | 2012-07-03 | Double loop sequencing circuit |
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| CN103529712A true CN103529712A (en) | 2014-01-22 |
| CN103529712B CN103529712B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210226112.XA Active CN103529712B (en) | 2012-07-03 | 2012-07-03 | Double loop sequencing circuit |
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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 |
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| US4228483A (en) * | 1977-03-14 | 1980-10-14 | La Telemechanique Electrique | Sequential control electrical chain comprising assembled coupling connector modules |
| CN1105760A (en) * | 1994-01-06 | 1995-07-26 | 上海机械高等专科学校 | Non-programming sequence controller |
| CN2266809Y (en) * | 1996-03-27 | 1997-11-05 | 徐志强 | Power combined socket with sequence control multiplex output |
| CN101763125A (en) * | 2009-10-15 | 2010-06-30 | 中建八局第二建设有限公司 | Electric heating cable running control method |
| CN202023975U (en) * | 2011-03-28 | 2011-11-02 | 焦作市迈科冶金机械有限公司 | Double-layer cinder valve control system |
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2012
- 2012-07-03 CN CN201210226112.XA patent/CN103529712B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4228483A (en) * | 1977-03-14 | 1980-10-14 | La Telemechanique Electrique | Sequential control electrical chain comprising assembled coupling connector modules |
| CN1105760A (en) * | 1994-01-06 | 1995-07-26 | 上海机械高等专科学校 | Non-programming sequence controller |
| CN2266809Y (en) * | 1996-03-27 | 1997-11-05 | 徐志强 | Power combined socket with sequence control multiplex output |
| CN101763125A (en) * | 2009-10-15 | 2010-06-30 | 中建八局第二建设有限公司 | Electric heating cable running control method |
| CN202023975U (en) * | 2011-03-28 | 2011-11-02 | 焦作市迈科冶金机械有限公司 | Double-layer cinder valve control system |
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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| CN103529712B (en) | 2016-05-11 |
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Effective date of registration: 20181123 Address after: No. 147, the Yellow River Road, Sanmenxia, Henan, Henan Patentee after: SINOHYDRO Bureau 11 Co., Ltd. Address before: 45 000 1 West Household, Unit 1, 28th Floor, Jinhua Garden District, Zhengzhou High-tech Zone, Henan Province Patentee before: Han Xinhua |
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