CN203660932U - Motor positive and negative rotation control device - Google Patents
Motor positive and negative rotation control device Download PDFInfo
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- CN203660932U CN203660932U CN201420008260.9U CN201420008260U CN203660932U CN 203660932 U CN203660932 U CN 203660932U CN 201420008260 U CN201420008260 U CN 201420008260U CN 203660932 U CN203660932 U CN 203660932U
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- motor
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Abstract
The utility model discloses a motor positive and negative rotation control device comprising a switching power supply, a microprocessor, an operation panel provided with positive rotation, negative rotation and stop buttons, and a relay control circuit which controls the change of working states of a motor according to commands of the microprocessor. A silicon controlled rectifier control circuit used for controlling the time of switch-on connection with an alternating current power supply of a relay contact is arranged between the microprocessor and the relay control circuit. An input end of the silicon controlled rectifier control circuit is connected with the three-phase alternating current power supply. The switching power supply is connected with the microprocessor, the silicon controlled rectifier control circuit and the relay control circuit. The motor positive and negative rotation control device can eliminate the arc light generated at the moment of closing of the relay contact while achieving the positive and negative rotation control, thereby providing reliable assurance for safe operation of a motor and equipment driven by the motor.
Description
Technical field
The utility model relates to a kind of Electrical Control Technology field, specifically a kind of control device for electric machine operation state is changed.
Background technology
Along with the arrival of electronic age, the raising of people's living standard, the demand of the high-grade fabrics such as Silk, synthetic fiber spinning, imitative fiber crops, imitation leather significantly rises, and the demand rapid growth of fine fabric, makes people constantly propose new requirement to weaving technology efficiency.In order to guarantee that loom produces various high-quality products at a high speed, efficiently, reduce labour intensity, raise labour productivity, except possessing advanced Machine Design and accurate machining technique, complete loom control system is also one of them importance.The feature of loom control technology is to utilize microelectric technique to realize automatically to control, and loom is generally that the mode combining by hardware and software is controlled the operating state of loom.In loom control procedure, the rotating control of motor is a key link, is mainly to utilize PLC controller to carry out control contactor at present to the control of motor positive and inverse, further controls rotating and the brake of main motor.In the process of utilizing contactor control motor positive and inverse to change, because three-phase power line is directly connected on often opening of contactor or normally-closed contact, therefore in the time that contactor moves, heavy current can produce arc light in the moment of the closing of contact, not only shorten the useful life of relay, the more important thing is easy initiation fire accident.In addition, in contactor when action,, the interference certain to power generation, has reduced the reliability of PLC controller.
Utility model content
The utility model technical issues that need to address are to provide a kind of for controlling the control device of motor positive and inverse, can realize on the basis of rotating and brake control, eliminate the generation of contacts of contactor arc light of closed moment, for the safe operation of motor and institute's driving arrangement provides Reliable guarantee.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
Motor positive and inverse control device, comprise Switching Power Supply, microprocessor, be provided with forward reversion and the operation board of stop button and the control relay circuit that carries out operating state conversion according to microprocessor instruction control motor, between described microprocessor and control relay circuit, be also provided with for the control relay contacting silicon controlled control circuit of AC power time, the input of silicon controlled control circuit connects three-phase alternating-current supply; Described Switching Power Supply is connected with microprocessor, silicon controlled control circuit and control relay circuit respectively.
Improvement of the present utility model is: between described microprocessor and silicon controlled control circuit, be provided with zero passage control optically coupled circuit.
Improvement of the present utility model is: between described microprocessor and zero passage control optically coupled circuit, be provided with power amplification circuit.
Improvement of the present utility model is: between described operation board and the input of microprocessor, be provided with photoelectric isolating circuit.
Improvement of the present utility model is: the output of described microprocessor is also connected with signal indicating circuit.
Owing to having adopted technique scheme, the technological progress that the utility model is obtained is:
The utility model has not only been realized effective control of motor positive and inverse and brake, can also reduce the consume of device, improves reliability and the fail safe of control device.Utilize the relay in silicon controlled control circuit control relay control circuit after normally opened contact closure, to connect again AC power, power supply disconnects relay contact again after first disconnecting, effectively avoid relay contact closure, disconnected moment generation arc light, extend the useful life of relay group, and improved the fail safe of device operation.Adopt zero passage control optically coupled circuit between microprocessor and silicon controlled control circuit and three-phase alternating-current supply, to isolate and forward and reversion instruction are interlocked to control, can make on the one hand strong power part and weak current part separate, avoid forceful electric power to connect the impact of moment on light current control section, reduce to disturb, improve the reliability of device, guaranteed on the other hand the accuracy of motor action message.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the circuit diagram of zero passage control optically coupled circuit described in the utility model and silicon controlled control circuit;
Fig. 3 is the circuit diagram of control relay circuit described in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
A kind of motor positive and inverse control device, its structured flowchart as shown in Figure 1, comprises three-phase alternating-current supply, Switching Power Supply, operation board, photoelectric isolating circuit, microprocessor, power amplification circuit, zero passage control optically coupled circuit, silicon controlled control circuit, control relay circuit and signal indicating circuit.Wherein, the input of Switching Power Supply connects any two phase lines of three-phase alternating-current supply, the output of Switching Power Supply is connected with photoelectric isolating circuit, microprocessor, power amplification circuit, zero passage control optically coupled circuit, silicon controlled control circuit and control relay circuit respectively, is used to it that operating voltage is provided.In the present embodiment, the DC voltage value of Switching Power Supply output is 12V and 5V.
On operation board, be provided with forward button, invert button, stop button, single shuttle button and driving button, for sending corresponding instruction.
Each button on the input attended operation dish of photoelectric isolating circuit, for the switching value signal of operation board input is changed and is isolated, the output of photoelectric isolation module connects the input of microprocessor, for the forward, reversion and the stop sign that provide operation board to send to microprocessor.
Microprocessor, for according to the electric machine operation state signal of photoelectric isolating circuit output, processes, and triggers zero passage control optically coupled circuit, silicon controlled control circuit, control relay circuit and moved the conversion of electric machine operation state.In the present embodiment, microprocessor adopts ATMEGA48.
Power amplification circuit, carries out power amplification for the instruction that microprocessor is sent and further drives the action of zero passage control optically coupled circuit.In the present embodiment, power amplification circuit adopts two ULN2003AN, output ULINE and VWLINE control signal.
Zero passage control optically coupled circuit, for ULINE and the VWLINE control signal exported according to power amplification circuit are changed and isolated, to control the triggering state of silicon controlled control circuit.In the present embodiment, as shown in Figure 2, zero passage control optically coupled circuit comprises three MOC3081 chips, i.e. IC1 ~ IC3 to the circuit diagram of zero passage control optically coupled circuit.Wherein: 1 pin of IC1 is connected with the 12V output of Switching Power Supply, 2 pin of IC1 and the ULINE control signal output that is connected power amplification circuit after 3 pin short circuits through resistance R 1; 6 pin of IC1 connect the input of silicon controlled control circuit through resistance R 2,4 pin of IC1 directly connect the input of silicon controlled control circuit.1 pin of IC2 is connected with the 12V output of Switching Power Supply, 2 pin of IC2 and 1 pin that is connected IC3 after 3 pin short circuits; 6 pin of IC2 connect the input of silicon controlled control circuit through resistance R 3,4 pin of IC2 directly connect the input of silicon controlled control circuit.2 pin of IC3 and the VWLINE control signal output that is connected power amplification circuit after 3 pin short circuits through resistance R 11; 6 pin of IC3 connect the input of silicon controlled control circuit through resistance R 4,4 pin of IC3 directly connect the input of silicon controlled control circuit.
Silicon controlled control circuit is for the time of control relay contacting AC power, the input of silicon controlled control circuit connects the output of three-phase alternating-current supply and zero passage control optically coupled circuit, three-phase electricity signal UM, VM ' and the WM ' of silicon controlled control circuit output three-phase alternating-current supply, wherein the UM signal of telecommunication directly connects a wherein phase connection terminal of motor, and VM ' and the WM ' signal of telecommunication are exported to respectively control relay circuit.
In the present embodiment, the circuit diagram of silicon controlled control circuit as shown in Figure 2, comprises the first loop, second servo loop and the tertiary circuit that are set up in parallel.Wherein the first loop comprises bidirectional triode thyristor Q2, the input of bidirectional triode thyristor Q2 connects the output of the three-phase alternating-current supply RLINE signal of telecommunication and zero passage control optically coupled circuit resistance R 2, the output of bidirectional triode thyristor Q2 is directly exported the UM signal of telecommunication to motor, the trigger end of bidirectional triode thyristor Q2 connects 4 pin of zero passage control optically coupled circuit IC1, by the output signal of zero passage control optically coupled circuit, the ON time of bidirectional triode thyristor Q2 is controlled.The two ends of bidirectional triode thyristor Q2 are connected in parallel and are connected in series by resistance R 8 and capacitor C 1 filter branch forming.
Second servo loop comprises bidirectional triode thyristor Q3, the input of bidirectional triode thyristor Q3 connects the output of the three-phase alternating-current supply SLINE signal of telecommunication and zero passage control optically coupled circuit resistance R 3, the output of bidirectional triode thyristor Q3 is through the fuse FUSE2 output VM ' signal of telecommunication, and the VM ' signal of telecommunication connects the input of control relay circuit; The trigger end of bidirectional triode thyristor Q3 connects 4 pin of zero passage control optically coupled circuit IC2, by the output signal of zero passage control optically coupled circuit, the ON time of bidirectional triode thyristor Q3 is controlled.The two ends of bidirectional triode thyristor Q3 are connected in parallel and are connected in series by resistance R 9 and capacitor C 2 filter branch forming.
Tertiary circuit comprises bidirectional triode thyristor Q4, the input of bidirectional triode thyristor Q4 connects the output of the three-phase alternating-current supply TLINE signal of telecommunication and zero passage control optically coupled circuit resistance R 4, the output of bidirectional triode thyristor Q4 is through the fuse FUSE1 output WM ' signal of telecommunication, and the WM ' signal of telecommunication connects the input of control relay circuit; The trigger end of bidirectional triode thyristor Q4 connects 4 pin of zero passage control optically coupled circuit IC3, by the output signal of zero passage control optically coupled circuit, the ON time of bidirectional triode thyristor Q4 is controlled.The two ends of bidirectional triode thyristor Q4 are connected in parallel and are connected in series by resistance R 10 and capacitor C 3 filter branch forming.
Control relay circuit is for carrying out conversion and control according to microprocessor instruction to the operating state of motor, and the circuit diagram of the present embodiment repeat circuit control circuit as shown in Figure 3.
Control relay circuit comprises three relay R EY1, REY2 and REY3, and wherein REY1 relay is motor forward control relay, and REY2 relay is motor reversal control relay, and REY3 relay is motor braking control relay.
The 12V output of one end (being REY3-11 pin) connecting valve power supply of REY3 relay coil, the other end (being REY3-10 pin) of REY3 relay coil connects the ABS signal output part of microprocessor; In the time that microprocessor sends halt instruction, the REY3 actuating of relay.The 12V output of one end (being REY3-2 pin) connecting valve power supply of REY3 relay normally-closed contact, the other end (being REY3-8 pin) of REY3 relay normally-closed contact is connected with one end (being REY1-2 pin) of REY1 relay normally-closed contact and one end (being REY2-2 pin) of REY2 relay normally-closed contact respectively; The other end (being REY1-8 pin) of REY1 relay normally-closed contact connects coil one end (being REY2-11 pin) of REY2 relay, the coil other end (being REY2-10 pin) of REY2 relay connects the reversion RE signal output part of microprocessor, for receiving reversion control command; The other end (being REY2-8 pin) of REY2 relay normally-closed contact connects coil one end (being REY1-11 pin) of REY1 relay, the coil other end (being REY1-10 pin) of REY1 relay connects the FW signal output part of microprocessor, for receiving forward control command.
When REY3 relay receives after the parking ABS signal of microprocessor, the REY3 actuating of relay, normally-closed contact is opened, the coil-end of REY1 relay and REY2 relay cannot obtain electric, even if therefore microprocessor sends control command to it, REY1 relay and REY2 relay also can not move, and can not export the WM signal of telecommunication and the VM signal of telecommunication.In the time that microprocessor does not send parking ABS signal, the coil-end of REY1 relay and REY2 relay all has 12V voltage, now moves according to the control command of microprocessor.Realize the interlocking between REY3 relay and REY1 relay, REY2 relay.
In the time that REY1 relay receives forward FW signal, the REY1 actuating of relay, the normally-closed contact of REY1 relay is opened, and the coil-end dead electricity of REY2 relay guarantees that REY2 relay can not start.In like manner, in the time that REY2 relay receives reversion RE signal, the REY2 actuating of relay, the normally-closed contact of REY2 relay is opened, and the coil-end dead electricity of REY1 relay guarantees that REY1 relay can not start.Thereby realize the interlocking between REY1 relay and REY2 relay.
One end (being REY2-9 pin) of REY2 relay normally open contact connects the VM ' electrical signal of silicon controlled control circuit, the other end (being REY2-6 pin) of REY2 relay normally open contact is directly connected with the reversion binding post of motor, for export the VM signal of telecommunication to motor in the time of the REY2 actuating of relay, motor is reversed.
One end (being REY1-7 pin) of REY1 relay normally open contact connects the WM ' electrical signal of silicon controlled control circuit, the other end (being REY1-4 pin) of REY1 relay normally open contact is directly connected with the forward binding post of motor, for export the WM signal of telecommunication to motor in the time of the REY1 actuating of relay, make motor carry out forward.
Operation principle of the present utility model is as described below:
After three-phase alternating-current supply RLINE, SLINE, TLINE access silicon controlled control circuit, wherein the RLINE signal of telecommunication is directly exported UM forceful electric power signal by the first loop of silicon controlled control circuit to motor.
When after the forward pushbutton enable on operation board, positive rotaring signal is transferred to microprocessor after photoelectric isolating circuit is changed and isolated, the treated output forward of microprocessor control signal, forward control signal is exported VWLINE signal and FW signal after power discharge circuit carries out power amplification, wherein FW signal is transferred to REY1 relay, REY1 relay coil obtains electric, REY1 relay normally open contact closure; Now VWLINE signal is exported forward control command through zero passage control optically coupled circuit to the bidirectional triode thyristor Q4 of silicon controlled control circuit, the conducting of forward control command control silicon controlled control circuit, send into the WM ' signal of telecommunication to closed REY1 relay normally open contact, WM ' the signal of telecommunication is directly sent into motor terminals, starter motor forward through closed REY1 relay normally open contact output WM forceful electric power signal.
After the invert button on operation board starts, reverse signal is transferred to microprocessor after photoelectric isolating circuit is changed and isolated, the treated output reverse control signal of microprocessor, reverse control signal is exported VWLINE signal and RE signal after power discharge circuit carries out power amplification, wherein RE signal is transferred to REY2 relay, REY2 relay coil obtains electric, REY2 relay normally open contact closure; Now VWLINE signal is exported reversion control command through zero passage control optically coupled circuit to the bidirectional triode thyristor Q3 of silicon controlled control circuit, the conducting of reversion control command control silicon controlled control circuit, send into the VM ' signal of telecommunication to closed REY2 relay normally open contact, VM ' the signal of telecommunication is directly sent into motor terminals, starter motor reversion through closed REY2 relay normally open contact output VM forceful electric power signal.
After the stop button on operation board starts, signal is transferred to microprocessor after photoelectric isolating circuit is changed and isolated, the treated output brake control signal of microprocessor, brake control signal is outputting parking ABS signal after power discharge circuit carries out power amplification, the coil-end of parking ABS signal access REY3 relay, REY3 relay coil is obtained electric, REY3 relay normally-closed contact is opened, REY1 relay and the equal dead electricity of REY2 relay coil, cannot export WM or the VM signal of telecommunication to motor, REY3 relay normally open contact is opened the dynamic braking assembly of connecting loom simultaneously, complete motor brake.
Claims (5)
1. motor positive and inverse control device, comprise Switching Power Supply, microprocessor, be provided with forward reversion and the operation board of stop button and the control relay circuit that carries out operating state conversion according to microprocessor instruction control motor, it is characterized in that: between described microprocessor and control relay circuit, be also provided with for the control relay contacting silicon controlled control circuit of AC power time, the input of silicon controlled control circuit connects three-phase alternating-current supply; Described Switching Power Supply is connected with microprocessor, silicon controlled control circuit and control relay circuit respectively.
2. motor positive and inverse control device according to claim 1, is characterized in that: between described microprocessor and silicon controlled control circuit, be provided with zero passage control optically coupled circuit.
3. motor positive and inverse control device according to claim 2, is characterized in that: between described microprocessor and zero passage control optically coupled circuit, be provided with power amplification circuit.
4. motor positive and inverse control device according to claim 1, is characterized in that: between described operation board and the input of microprocessor, be provided with photoelectric isolating circuit.
5. motor positive and inverse control device according to claim 1, is characterized in that: the output of described microprocessor is also connected with signal indicating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008260.9U CN203660932U (en) | 2014-01-07 | 2014-01-07 | Motor positive and negative rotation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008260.9U CN203660932U (en) | 2014-01-07 | 2014-01-07 | Motor positive and negative rotation control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203660932U true CN203660932U (en) | 2014-06-18 |
Family
ID=50927280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420008260.9U Expired - Fee Related CN203660932U (en) | 2014-01-07 | 2014-01-07 | Motor positive and negative rotation control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203660932U (en) |
-
2014
- 2014-01-07 CN CN201420008260.9U patent/CN203660932U/en not_active Expired - Fee Related
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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: 20140618 Termination date: 20200107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |