CN204652269U - Motor for subsequent use automatically switches and runs circuit - Google Patents
Motor for subsequent use automatically switches and runs circuit Download PDFInfo
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- CN204652269U CN204652269U CN201520413479.1U CN201520413479U CN204652269U CN 204652269 U CN204652269 U CN 204652269U CN 201520413479 U CN201520413479 U CN 201520413479U CN 204652269 U CN204652269 U CN 204652269U
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Abstract
The utility model relates to a kind of motor automatic switchover for subsequent use and runs circuit, its technical scheme is: comprise main circuit and control circuit, main circuit comprises conventional main circuit and main circuit for subsequent use, conventional main circuit comprises frequency converter, mair motor, three phase mains connects frequency converter by the first air circuit, and frequency converter connects mair motor; Main circuit for subsequent use comprises soft initiator, motor for subsequent use, three phase mains connects soft initiator by the second air circuit, soft initiator connects motor for subsequent use, described control circuit comprises switching on/off circuit, manual control circuit and automatic control circuit, three phase mains is by the 3rd insurance serial connection control circuit, and switching on/off circuit and manual control circuit and automatic control circuit compose in parallel control circuit; The beneficial effects of the utility model are: operating maintenance is convenient, and energy waste is few, modification stability, improves quality and the qualification rate of product, improves operating efficiency, extend the useful life of equipment, reduce production cost.
Description
Technical field
The utility model relates to a kind of frequency converter running protection device, the circuit that the motor for subsequent use that particularly can automatically switch during a kind of frequency converter drive mair motor fault runs.
Background technology
The pump of present most processing enterprise is all within 24 hours, do not stop transport to turn, in product processing, the running effect of pump determines quality and the yield of product, the control of pump output variable size regulates by dcs (DCS), realizes automation completely.Present regulative mode: (1) dcs (DCS) is according to the requirement of converted products technique output from dynamic simulated signal feeding frequency converter, and frequency converter carries out automated power (rotating speed) according to the size of analog signal and exports the running of drive pump.Play intact automatic control.(2) dcs (DCS) carries out backflow adjustment to the pump that full range operates, and this regulative mode, to energy waste large (namely pump output variable majority refluxes), regulates unstable, reduces quality and the qualification rate of product.This control mode only just can use when the first pump fault.Because the price of frequency converter is high, most enterprise adopts and is driven by frequency converter the pump one of parallel running, and another is directly driven by contactor or soft initiator.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of motor for subsequent use to automatically switch and runs circuit.
The technical solution of the utility model is: comprise main circuit and control circuit, main circuit comprises conventional main circuit and main circuit for subsequent use, conventional main circuit comprises frequency converter, mair motor M1, three phase mains connects frequency converter by the first air circuit QF1, frequency converter connects mair motor M1, described conventional main circuit is connected the coil of the 3rd contactor KM3 and the first isolation switch QS1, the normally opened contact KA1-1 of auxiliary relay KA1 in parallel on frequency converter; Main circuit for subsequent use comprises soft initiator, motor M2 for subsequent use, three phase mains connects soft initiator by the second air circuit QF2, soft initiator connects motor M2 for subsequent use, main circuit for subsequent use is connected the coil of the 4th contactor KM4 and the second isolation switch QS2, the coil of soft initiator the first contactor KM1 in parallel, the coil of conventional 5th contactor KM5 in parallel between main circuit and main circuit for subsequent use;
Described control circuit comprises switching on/off circuit, manual control circuit and automatic control circuit, and three phase mains is connected in series control circuit by the 3rd insurance FU3, and switching on/off circuit and manual control circuit and automatic control circuit compose in parallel control circuit;
Switching on/off circuit; Connect respectively normally-closed contact KT1-1, the first stop button SB1 of very first time relay K T1, the first start button SB2, the first contactor KM1 of first insurance FU1 forms switching on/off circuit, the normally opened contact KM1-2 of the first contactor KM1 in parallel on the first described start button SB2;
Manual control circuit: hand switch is very first time relay K T1, the 5th contactor KM5, the second time relay KT2, the 3rd auxiliary relay KA3, manual indicator light HB in parallel respectively, 5th contactor KM5 connects the normally opened contact KT2-1 of the second time relay KT2 in the normally opened contact KM1-2 manual control circuit in parallel of normally opened contact KT1-4, the normally-closed contact KM3-1 of the 3rd contactor KM3 of very first time relay K T1, the normally-closed contact KM4-1 of the 4th contactor KM4, the first contactor KM1 and the normally opened contact KM3-1 of the 3rd contactor KM3;
Automatic control circuit: automatic switch the 3rd contactor KM3, the 4th contactor KM4 and automatic pilot lamp HR in parallel, normally-closed contact the 5th contactor KM5-1 of series connection the 5th contactor KM5 and the normally-closed contact KT1-3 of very first time relay K T1 on the 3rd contactor KM3;
Soft initiator switching on/off circuit in parallel on described soft initiator, soft initiator switching on/off circuit: normally-closed contact KT1-2, the second stop button SB3, the second start button SB4, the second auxiliary relay KA2, the first contactor KM1 of the second insurance FU2 series connection very first time relay K T1, the normally opened contact KA2-2 of the second auxiliary relay KA2 in parallel between the second described stop button SB3, the second start button SB4.
The utility model does not change the control mode of original motor, pump is commonly used when manual work, pump for subsequent use works separately or keeps in repair and is independent of each other, when conventional pump breaks down, conversion controls to start pump for subsequent use running automatically, can keep in repair conventional pump, can also keep in repair the electrical equipment of pump for subsequent use simultaneously; Have that operating maintenance is convenient, energy waste is few, the advantage of modification stability, improve quality and the qualification rate of product, improve operating efficiency, extend the useful life of equipment, reduce production cost.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model comprises main circuit and control circuit, main circuit comprises conventional main circuit and main circuit for subsequent use, conventional main circuit comprises frequency converter 1, mair motor M1, three phase mains connects frequency converter 1 by the first air circuit QF1, frequency converter 1 connects mair motor M1, described conventional main circuit is connected the coil of the 3rd contactor KM3 and the first isolation switch QS1, the normally opened contact KA1-1 of auxiliary relay KA1 in parallel on frequency converter 1; Main circuit for subsequent use comprises soft initiator 2, motor M2 for subsequent use, three phase mains connects soft initiator 2 by the second air circuit QF2, soft initiator 2 connects motor M2 for subsequent use, main circuit for subsequent use is connected the coil of the 4th contactor KM4 and the second isolation switch QS2, the coil of soft initiator 2 first contactor KM1 in parallel, the coil of conventional 5th contactor KM5 in parallel between main circuit and main circuit for subsequent use;
Control circuit comprises switching on/off circuit, manual control circuit and automatic control circuit, and three phase mains is connected in series control circuit by the 3rd insurance FU3, and switching on/off circuit and manual control circuit and automatic control circuit compose in parallel control circuit;
Switching on/off circuit; Connect respectively normally-closed contact KT1-1, the first stop button SB1 of very first time relay K T1, the first start button SB2, the first contactor KM1 of first insurance FU1 forms switching on/off circuit, the normally opened contact KM1-2 of the first contactor KM1 in parallel on the first described start button SB2;
Manual control circuit: hand switch 3 is very first time relay K T1, the 5th contactor KM5, the second time relay KT2, the 3rd auxiliary relay KA3, manual indicator light HB in parallel respectively, 5th contactor KM5 connects the normally opened contact KT2-1 of the second time relay KT2 in the normally opened contact KM1-2 manual control circuit in parallel of normally opened contact KT1-4, the normally-closed contact KM3-1 of the 3rd contactor KM3 of very first time relay K T1, the normally-closed contact KM4-1 of the 4th contactor KM4, the first contactor KM1 and the normally opened contact KM3-1 of the 3rd contactor KM3;
Automatic control circuit: automatic switch 4 the 3rd contactor KM3, the 4th contactor KM4 and automatic pilot lamp HR in parallel, normally-closed contact the 5th contactor KM5-1 of series connection the 5th contactor KM5 and the normally-closed contact KT1-3 of very first time relay K T1 on the 3rd contactor KM3;
Soft initiator switching on/off circuit in parallel on soft initiator 2, soft initiator switching on/off circuit: normally-closed contact KT1-2, the second stop button SB3, the second start button SB4, the second auxiliary relay KA2, the first contactor KM1 of the second insurance FU2 series connection very first time relay K T1, the normally opened contact KA2-2 of the second auxiliary relay KA2 in parallel between the second described stop button SB3, the second start button SB4.
The operation principle of foregoing circuit is as follows:
1, manual operation
When 1-1 is manual, first isolation switch QS1, second isolation switch QS2 is in closing position, the coil of the 3rd contactor KM3, the coil electricity of the 4th contactor KM4, manual indicator light HB realizes interlocking design by contactor KM5 normally closed auxiliary contact KM5-1, the time delay of very first time relay K T1 disconnect normally closed point electric work, manual work indicator light HB lights, 3rd contactor KM3, the 4th contactor KM4 major loop closing of contact, in manual secondary line, be connected in series contactor KM5-1 normally closed auxiliary contact form interlocking, object be contactor KM5 work or adhesion time contactor KM3, KM4, indicator light HB must not work by electricity, two motor main circuits are connected, prepare startup work to complete,
When 1-2 is manual, start conventional mair motor M1, press the first start button SB2, the coil of the first auxiliary relay KA1 is by the first insurance FU1, the normally-closed contact KT1-1 of very first time relay is instantaneous to be disconnected electric work makes the first auxiliary relay KA1 normally opened contact KA1-2 close, form locking circuit, first auxiliary relay KA1 works, the normally opened contact KA1-1 of the first auxiliary relay closes simultaneously, frequency converter startup work completes, and presses SB1 auxiliary relay KA1 dead electricity and stop during parking;
When 1-3 is manual, start motor M2 for subsequent use, press the second start button SB4, the coil of the second auxiliary relay KA2 is by insurance FU2, very first time relay normally closed some KT1-2 is instantaneous to be disconnected electric work makes the second auxiliary relay KA2 normally opened contact KA2-2 close, and form locking circuit, the second auxiliary relay KA2 works, the normally opened contact KA2-1 of the second auxiliary relay KA2 closes simultaneously, and soft initiator startup work completes; Press the second stop button SB3 second auxiliary relay KA2 dead electricity during parking to stop, start parking mode constant.
2, automatic operation
2-1 change over switch is switched to automated location, first the coil of the 3rd contactor KM3 and the coil power of the 4th contactor KM4 is cut off, the coil of the 3rd contactor KM3, the coil losing electricity of the 4th contactor KM4 makes this 3rd contactor KM3, the 4th contactor KM4 normally-closed contact disjunction, cut off manual indicator light HB, manual indicator light HB indicator light extinguishes simultaneously.
2-2 change over switch is switched to automated location, simultaneously electric work: (1) very first time relay coil KT1, (2) second time relay coil KT2, (3) the 3rd auxiliary relay coil KA3, (4) automatic pilot lamp HR, very first time relay K T1 obtains electric work instantaneous disconnection normally-closed contact KT1-1, the secondary circuit of KT1-2 insantaneous break mair motor M1 and motor for subsequent use makes two motors shut down, while very first time relay K T1 works, timing closing normally opened contact KT1-4 is closed connects by the 3rd contactor KM3 normally-closed contact KM3-1, the interlocking line of the normally-closed contact KM4-1 composition of the 4th contactor KM4 connects the coil of the 5th contactor KM5, 5th contactor KM5 normally opened contact closes connects the major loop of frequency converter to motor for subsequent use, the very first time relay K T1 time delay simultaneously worked disconnects normally-closed contact KT1-3 and disconnects, 5th contactor KM5 works and disconnects, the normally-closed contact of the 5th contactor KM5 remains closed, realize double-deck interlocking, guarantee the 3rd contactor KM3, 4th contactor KM4 must not work by electricity, prepare to start machine operation for subsequent use to complete,
2-3 the 3rd auxiliary relay KA3 coil is electricly instantaneous, closed normally opened contact KA3-1;
2-4 automatic pilot lamp HR obtains electric lighting;
2-5 second time relay KT2 coil obtains electric work (time relay KT2 delay working time must be greater than time relay KT1) timing closing KT2-1, be switched to the power supply of the first auxiliary relay KA1 coil, first auxiliary relay KA1 obtains electric work, closed first auxiliary relay normally opened contact KA1-1 simultaneously, frequency converter startup work completes, motor entry into service for subsequent use.
Maintenance: can disjunction first air circuit QF1 during manual mode, the 3rd insurance FU3 can to frequency converter, the 3rd contactor KM3, mair motor and automatically, all of hand switch machine secondary circuit electrically carry out maintenance maintenance; Can disjunction second air circuit QF2 during manual mode, the second insurance FU2 can to soft initiator, the first contactor KM1, the 4th contactor KM4, and motor for subsequent use and all of secondary circuit electrically carry out maintenance maintenance; Maintenance maintenance can be carried out to conventional pump by manual separation first isolation switch QS1 during auto state, be separated the second air circuit QS2, the second insurance FU2 can to the major loop of spare motor electrically and secondary circuit carry out maintenance maintenance.
Claims (2)
1. a motor automatic switchover for subsequent use runs circuit, it is characterized in that: comprise main circuit and control circuit, main circuit comprises conventional main circuit and main circuit for subsequent use, conventional main circuit comprises frequency converter, mair motor M1, three phase mains connects frequency converter by the first air circuit QF1, frequency converter connects mair motor M1, the coil of the 3rd contactor KM3 that described conventional main circuit is connected and the first isolation switch QS1, the normally opened contact KA1-1 of auxiliary relay KA1 in parallel on frequency converter; Main circuit for subsequent use comprises soft initiator, motor M2 for subsequent use, three phase mains connects soft initiator by the second air circuit QF2, soft initiator connects motor M2 for subsequent use, main circuit for subsequent use is connected the coil of the 4th contactor KM4 and the second isolation switch QS2, the coil of soft initiator the first contactor KM1 in parallel, the coil of conventional 5th contactor KM5 in parallel between main circuit and main circuit for subsequent use;
Described control circuit comprises switching on/off circuit, manual control circuit and automatic control circuit, and three phase mains is connected in series control circuit by the 3rd insurance FU3, and switching on/off circuit and manual control circuit and automatic control circuit compose in parallel control circuit;
Switching on/off circuit; Connect respectively normally-closed contact KT1-1, the first stop button SB1 of very first time relay K T1, the first start button SB2, the first contactor KM1 of first insurance FU1 forms switching on/off circuit, the normally opened contact KM1-2 of the first contactor KM1 in parallel on the first described start button SB2;
Manual control circuit: hand switch is very first time relay K T1, the 5th contactor KM5, the second time relay KT2, the 3rd auxiliary relay KA3, manual indicator light HB in parallel respectively, 5th contactor KM5 connects the normally opened contact KT2-1 of the second time relay KT2 in the normally opened contact KM1-2 manual control circuit in parallel of normally opened contact KT1-4, the normally-closed contact KM3-1 of the 3rd contactor KM3 of very first time relay K T1, the normally-closed contact KM4-1 of the 4th contactor KM4, the first contactor KM1 and the normally opened contact KM3-1 of the 3rd contactor KM3;
Automatic control circuit: automatic switch the 3rd contactor KM3, the 4th contactor KM4 and automatic pilot lamp HR in parallel, normally-closed contact the 5th contactor KM5-1 of series connection the 5th contactor KM5 and the normally-closed contact KT1-3 of very first time relay K T1 on the 3rd contactor KM3.
2. motor automatic switchover for subsequent use according to claim 1 runs circuit, it is characterized in that: soft initiator switching on/off circuit in parallel on described soft initiator, soft initiator switching on/off circuit: normally-closed contact KT1-2, the second stop button SB3, the second start button SB4, the second auxiliary relay KA2, the first contactor KM1 of the second insurance FU2 series connection very first time relay K T1, the normally opened contact KA2-2 of the second auxiliary relay KA2 in parallel between the second described stop button SB3, the second start button SB4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520413479.1U CN204652269U (en) | 2015-06-16 | 2015-06-16 | Motor for subsequent use automatically switches and runs circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520413479.1U CN204652269U (en) | 2015-06-16 | 2015-06-16 | Motor for subsequent use automatically switches and runs circuit |
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| Publication Number | Publication Date |
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| CN204652269U true CN204652269U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520413479.1U Active CN204652269U (en) | 2015-06-16 | 2015-06-16 | Motor for subsequent use automatically switches and runs circuit |
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Cited By (8)
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| CN106430012A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Multi-lifting-point basket control circuit |
| CN107332478A (en) * | 2016-04-29 | 2017-11-07 | 上海弘凯遮阳材料有限公司 | A kind of controller |
| CN107861465A (en) * | 2017-12-21 | 2018-03-30 | 中国建筑第七工程局有限公司 | A kind of full-automatic photoelectric control switch case for service rack |
| CN108471163A (en) * | 2018-05-31 | 2018-08-31 | 广西玉柴机器股份有限公司 | A kind of alternate power autocast control device |
| CN109947041A (en) * | 2019-03-15 | 2019-06-28 | 广东萨米特陶瓷有限公司 | Roller way kiln transmission control part divides intelligent standby system |
| CN112217422A (en) * | 2020-11-20 | 2021-01-12 | 中船华南船舶机械有限公司 | Control method of multi-motor electric control system |
| CN112332710A (en) * | 2020-10-29 | 2021-02-05 | 中石化四机石油机械有限公司 | Variable frequency motor linkage control circuit of sand conveying device |
| CN112725939A (en) * | 2020-12-31 | 2021-04-30 | 荣成碳纤维科技有限公司 | Double-frequency-conversion system of spinning solution delivery pump and control method |
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2015
- 2015-06-16 CN CN201520413479.1U patent/CN204652269U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107332478B (en) * | 2016-04-29 | 2020-08-11 | 上海弘凯遮阳材料有限公司 | Controller |
| CN107332478A (en) * | 2016-04-29 | 2017-11-07 | 上海弘凯遮阳材料有限公司 | A kind of controller |
| CN106430012A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Multi-lifting-point basket control circuit |
| CN106430012B (en) * | 2016-08-24 | 2019-09-10 | 无锡科通工程机械制造有限公司 | A kind of more suspension centre hanging basket control circuits |
| CN107861465A (en) * | 2017-12-21 | 2018-03-30 | 中国建筑第七工程局有限公司 | A kind of full-automatic photoelectric control switch case for service rack |
| CN107861465B (en) * | 2017-12-21 | 2024-05-14 | 中国建筑第七工程局有限公司 | Full-automatic photoelectric control switch box for car washing table |
| CN108471163A (en) * | 2018-05-31 | 2018-08-31 | 广西玉柴机器股份有限公司 | A kind of alternate power autocast control device |
| CN108471163B (en) * | 2018-05-31 | 2023-10-27 | 广西玉柴机器股份有限公司 | Automatic switching control device for standby power supply |
| CN109947041B (en) * | 2019-03-15 | 2020-08-28 | 广东萨米特陶瓷有限公司 | Intelligent standby system of transmission control part of roller kiln |
| CN109947041A (en) * | 2019-03-15 | 2019-06-28 | 广东萨米特陶瓷有限公司 | Roller way kiln transmission control part divides intelligent standby system |
| CN112332710A (en) * | 2020-10-29 | 2021-02-05 | 中石化四机石油机械有限公司 | Variable frequency motor linkage control circuit of sand conveying device |
| CN112332710B (en) * | 2020-10-29 | 2022-08-30 | 中国石油化工股份有限公司 | Variable frequency motor linkage control circuit of sand conveying device |
| CN112217422A (en) * | 2020-11-20 | 2021-01-12 | 中船华南船舶机械有限公司 | Control method of multi-motor electric control system |
| CN112217422B (en) * | 2020-11-20 | 2022-05-17 | 中船华南船舶机械有限公司 | Control method of multi-motor electric control system |
| CN112725939A (en) * | 2020-12-31 | 2021-04-30 | 荣成碳纤维科技有限公司 | Double-frequency-conversion system of spinning solution delivery pump and control method |
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