CN204442209U - A kind of motor starting or stopping control circuit - Google Patents
A kind of motor starting or stopping control circuit Download PDFInfo
- Publication number
- CN204442209U CN204442209U CN201520202846.3U CN201520202846U CN204442209U CN 204442209 U CN204442209 U CN 204442209U CN 201520202846 U CN201520202846 U CN 201520202846U CN 204442209 U CN204442209 U CN 204442209U
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- Prior art keywords
- relay
- normally opened
- opened contact
- normally
- parallel
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- Expired - Fee Related
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- Control Of Ac Motors In General (AREA)
Abstract
The utility model relates to a kind of motor starting or stopping control circuit, this motor starting or stopping control circuit two ends are connected between the AC power LN that voltage is 110V, by scram button, relay K A2 normally-closed contact, relay K A1 normally opened contact, vacuum contactor KM coils connected in series together, relay K A2 normally-closed contact is for controlling internal fault, and relay K A1 normally opened contact is for controlling electric motor starting; Again by parallel with relay K A1 normally opened contact for vacuum contactor KM normally opened contact, relay K A3 coil is in parallel with vacuum contactor coil KM; Red light is parallel to AC power LN two ends after connecting with the normally opened contact of relay K A3 again; Green light is parallel to AC power LN two ends after connecting with the normally-closed contact of relay K A3 again; Chip NI9606 internal relay exports the loop with relay K A1 coil, 12V DC power supply control relay KA1 in series normally opened contact.The utility model can realize the circuit conversion after to the soft start of motor, and the functions such as error protection, operation instruction, utilize relay control circuit safe and reliable, cost is low.
Description
Technical field
The utility model relates to and control soft starter for motor and halt circuit, what be specifically related to is a kind of motor starting or stopping control circuit.
Background technology
Traditional asynchronous machine Starting mode has: the startup of stator loop series reactor, the startup of autotransformer reduced-voltage starting, Y-△ mapping mode, extend-triangle startup, magnet controlled reduced-voltage starting etc.The shortcomings such as starting device volume is large, fault is many, parameter cannot adjust, detent torque is not enough be the problem that always also exists of above-mentioned Starting mode and, the Starting mode had in above-mentioned Starting mode belongs to has level to start, there is secondary pulse current problems during switching at different levels, also there is the hidden danger of torque shock ends simultaneously.The development of power electronic technology and microprocessor technology is perfect, performance improves constantly, and makes the soft-starting device for motor based on power electronic technology and microprocessor technology become reality.As shown in Figure 1, soft starter for motor main circuit: three-phase alternating current is connected to motor 1 by isolating switch 3, bidirectional thyristor 2, each bidirectional thyristor 2 parallel connection vacuum contactor KM normally opened contact.Realize soft start by driver, after soft start, change to vacuum contactor loop.The main circuit of soft start adopts three-phase anti-parallel thyristor as voltage regulator, is accessed between power supply and motor stator.When using soft initiator starter motor, the output voltage of bidirectional thyristor increases gradually, and motor accelerates gradually, until the full conducting of thyristor, machine operation, in the mechanical property of rated voltage, realizes smoothly starting, reduces starting current, avoids starting overcurrent tripping.When motor reaches rated speed, start-up course terminates.In Practical Project, usually need the soft start being realized motor by software and external switch, motor is anxious stops control button, fault stopping etc.And must be isolation between control circuit and main circuit.This just needs a kind of control relay circuit to realize the on off control of motor.
Summary of the invention
The purpose of this utility model is to provide a kind of motor starting or stopping control circuit, and this motor starting or stopping control circuit is for realizing circuit conversion, error protection after to the soft start of motor.
The utility model solves the technical scheme that its technical problem adopts: this motor starting or stopping control circuit two ends are connected between the AC power LN that voltage is 110V, by scram button, relay K A2 normally-closed contact, relay K A1 normally opened contact, vacuum contactor KM coils connected in series together, relay K A2 normally-closed contact is for controlling internal fault, and relay K A1 normally opened contact is for controlling electric motor starting; Again by parallel with relay K A1 normally opened contact for vacuum contactor KM normally opened contact, relay K A3 coil is in parallel with vacuum contactor coil KM; Red light is parallel to AC power LN two ends after connecting with the normally opened contact of relay K A3 again; Green light is parallel to AC power LN two ends after connecting with the normally-closed contact of relay K A3 again; Chip NI9606 internal relay exports the loop with relay K A1 coil, 12V DC power supply control relay KA1 in series normally opened contact.
The utility model has following beneficial effect:
1, the utility model can realize the circuit conversion after to the soft start of motor, and the functions such as error protection, operation instruction, utilize relay control circuit safe and reliable, cost is low.
2, the utility model is compared with traditional control circuit, more simple easy to understand and realization.
3, this circuit highly versatile, can be applied in the on off control of multiple motor.
Accompanying drawing explanation
Fig. 1 is soft starter for motor main circuit diagram in prior art;
Fig. 2 is circuit diagram of the present utility model.
1 motor, 2 bidirectional thyristors, 3 isolating switches, 4 scram buttons, 5 red lights, 6 green lights.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 2, this motor starting or stopping control circuit two ends are connected between the AC power LN that voltage is 110V, control circuit uses low pressure 110V to exchange and drives, by scram button 4, relay K A2 normally-closed contact, relay K A1 normally opened contact, vacuum contactor KM coils connected in series together, relay K A2 normally-closed contact is for controlling internal fault, and relay K A1 normally opened contact is for controlling electric motor starting; Again by parallel with relay K A1 normally opened contact for vacuum contactor KM normally opened contact, relay K A3 coil is in parallel with vacuum contactor coil KM; Red light 5 is parallel to AC power LN two ends after connecting with the normally opened contact of relay K A3 again; Green light 6 is parallel to AC power LN two ends after connecting with the normally-closed contact of relay K A3 again; Chip NI9606 internal relay exports the loop with relay K A1 coil, 12V DC power supply control relay KA1 in series normally opened contact.
During work, main circuit isolating switch first as shown in Figure 1 closes, and driver provides soft-start signal, and the angle of flow of bidirectional thyristor is increased gradually, and voltage increases gradually, realizes soft start.Need after soft start terminates to forward loop to vacuum contactor KM by thyristor.Then, utility model works, as Fig. 2, " 1 " signal is exported to by the internal relay of chip NI9606, relay K A1 normally opened contact closes, because scram button 4 and relay K A2 normally-closed contact are all in normally off, so vacuum contactor KM coil electricity, vacuum contactor KM normally opened contact are closed realize self-locking.After this " 1 " blackout, vacuum contactor KM coil keeps "on" position.Again due to relay K A3 coil and vacuum contactor KM coils from parallel connection of coils, relay K A3 coil is also energized, and the normally opened contact of relay K A3, the normally-closed contact of relay K A3 change the conversion and control realizing traffic lights mutually.When system malfunctions control chip NI9606 inside provides stopping signal or scram button 4 is pressed, circuit disconnects vacuum contactor KM coil losing electricity, and vacuum contactor KM normally opened contact disconnects, and motor stopping, achieves the various defencive functions to motor.
Claims (1)
1. a motor starting or stopping control circuit, it is characterized in that: this motor starting or stopping control circuit two ends are connected between the AC power LN that voltage is 110V, by scram button (4), relay K A2 normally-closed contact, relay K A1 normally opened contact, vacuum contactor KM coils connected in series together, relay K A2 normally-closed contact is for controlling internal fault, and relay K A1 normally opened contact is for controlling electric motor starting; Again by parallel with relay K A1 normally opened contact for vacuum contactor KM normally opened contact, relay K A3 coil is in parallel with vacuum contactor coil KM; Red light (5) is parallel to AC power LN two ends after connecting with the normally opened contact of relay K A3 again; Green light (6) is parallel to AC power LN two ends after connecting with the normally-closed contact of relay K A3 again; Chip NI9606 internal relay exports the loop with relay K A1 coil, 12V DC power supply control relay KA1 in series normally opened contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520202846.3U CN204442209U (en) | 2015-04-07 | 2015-04-07 | A kind of motor starting or stopping control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520202846.3U CN204442209U (en) | 2015-04-07 | 2015-04-07 | A kind of motor starting or stopping control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204442209U true CN204442209U (en) | 2015-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520202846.3U Expired - Fee Related CN204442209U (en) | 2015-04-07 | 2015-04-07 | A kind of motor starting or stopping control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204442209U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109274312A (en) * | 2018-10-18 | 2019-01-25 | 鞍钢集团工程技术有限公司 | A kind of sealing-tape machine control circuit with starting indication bell interlocking by machine |
| CN112152516A (en) * | 2020-09-06 | 2020-12-29 | 安徽昊源化工集团有限公司 | Control system of parallel relay |
| CN112491303A (en) * | 2019-09-11 | 2021-03-12 | 九江精密测试技术研究所 | Brushless torque motor braking device |
-
2015
- 2015-04-07 CN CN201520202846.3U patent/CN204442209U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109274312A (en) * | 2018-10-18 | 2019-01-25 | 鞍钢集团工程技术有限公司 | A kind of sealing-tape machine control circuit with starting indication bell interlocking by machine |
| CN109274312B (en) * | 2018-10-18 | 2023-12-01 | 鞍钢集团工程技术有限公司 | Belt conveyor control circuit with machine side starting indicating bell interlocking |
| CN112491303A (en) * | 2019-09-11 | 2021-03-12 | 九江精密测试技术研究所 | Brushless torque motor braking device |
| CN112152516A (en) * | 2020-09-06 | 2020-12-29 | 安徽昊源化工集团有限公司 | Control system of parallel relay |
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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: 20150701 Termination date: 20160407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |