CN204101913U - Intelligent servo controller - Google Patents
Intelligent servo controller Download PDFInfo
- Publication number
- CN204101913U CN204101913U CN201420429590.5U CN201420429590U CN204101913U CN 204101913 U CN204101913 U CN 204101913U CN 201420429590 U CN201420429590 U CN 201420429590U CN 204101913 U CN204101913 U CN 204101913U
- Authority
- CN
- China
- Prior art keywords
- output terminal
- microprocessor
- input end
- loop
- resistance
- 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.)
- Active
Links
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to driving electric actuator field, be specifically related to a kind of intelligent servo controller, comprise main signal input circuit, valve position feedback position signalling input circuit, valve position feedback signal output loop, control machines drive motor rotating loop, key-press input arranges loop, code-disc optimum configurations loop, run and malfunction indicator lamp loop and microprocessor, main signal input circuit is connected with the input end of microprocessor with the output terminal of valve position feedback position signalling input circuit, key-press input arranges loop and is connected with the input end of microprocessor with the output terminal in code-disc optimum configurations loop, the output terminal of microprocessor and the input end of valve position feedback signal output loop, the input end in control machines drive motor rotating loop is connected with the input end in operation and malfunction indicator lamp loop.The utility model both by the exact position operating in the on-the-spot pass of regulating valve family of power and influence valve opening arbitrarily of button, can arrange arbitrarily dead band size again.
Description
Technical field
The utility model relates to driving electric actuator field, is specifically related to a kind of intelligent servo controller.
Background technology
The design and development of servo controller, there are a lot of type and style, but it is current existing domestic servo controller, many with common analog control mode, the valve valve opening of valve is closed position and is still adjusted by potentiometer, so occur that valve closes not dead situation when debugging at the scene, often; But even if having the servo controller drive motor positive and negative rotation circuit of part intelligence, adopt the mode of mechanical contact, valve will adapt to continuous adjustment, rotating action just more frequently, when particularly valve output torque is larger, due to inertia, valve positioning precision just not high, dead band is bigger than normal, it is more difficult to safeguard; Segment controller is also had to only have reaction pattern, do not have positive interaction pattern optional; Even dead band adjustment also inconvenient, easily produce self-excitation, respectively have deficiency in a word; The electric actuator of certain import brand, its core component servo controller, even be all costliness that imported with original packaging and price are also suitable, be domestic 8 ~ 10 times, even higher.
Utility model content
For above-mentioned technical matters, the utility model provides a kind of intelligent servo controller, both by the exact position operating in the on-the-spot pass of regulating valve family of power and influence valve opening arbitrarily of button, can arrange arbitrarily dead band size again; The control model of positive and negative effect can also be selected arbitrarily, and valve positioning precision.
The utility model provides a kind of intelligent servo controller, comprise main signal input circuit, valve position feedback position signalling input circuit, valve position feedback signal output loop, control machines drive motor rotating loop, key-press input arranges loop, code-disc optimum configurations loop, run and malfunction indicator lamp loop and microprocessor, main signal input circuit is connected with the input end of microprocessor with the output terminal of valve position feedback position signalling input circuit, key-press input arranges loop and is connected with the input end of microprocessor with the output terminal in code-disc optimum configurations loop, the output terminal of microprocessor and the input end of valve position feedback signal output loop, the input end in control machines drive motor rotating loop is connected with the input end in operation and malfunction indicator lamp loop.
What described microprocessor U6 adopted is ATmega16 chip.
Described main signal input circuit comprises 2 wave filters, the operational amplifier U7 be made up of voltage amplifier U7-1 and voltage follower U7-2, by resistance R4, electric capacity C13 is connected with the output terminal of host computer or regulator with the input end of the first wave filter that resistance R5 forms, the output terminal of the first wave filter is connected with the input end of voltage amplifier U7-1, the output terminal of voltage amplifier U7-1 is connected with the input end of voltage follower U7-2, the output terminal of voltage follower U7-2 is connected with the second filter input end be made up of resistance R9 and electric capacity C14, second wave filter is connected with the input end Pa0 of microprocessor.
Described valve position feedback position signalling input circuit comprises RV change-over circuit, voltage amplifier U8 and the wave filter be made up of resistance R19 and electric capacity C17, RV change-over circuit comprises the Wheatstone bridge be made up of resistance R11-R14 and plastic potentiometer, plastic potentiometer is arranged between resistance R11 and R12, the output terminal of Wheatstone bridge is arranged at R13 respectively, between R14 and on the slider of plastic potentiometer, the input end of RV change-over circuit is the input end of valve position feedback position signalling input circuit, the output terminal of RV change-over circuit is connected with the input end of voltage amplifier U8, the output terminal of voltage amplifier U8 is connected with wave filter, the output terminal of wave filter is connected with the input end Pa1 of microprocessor.
Described valve position feedback signal output loop comprises photoelectric isolating circuit U11 and VI change-over circuit, the output terminal Pd5 of microprocessor is connected with the input end of photoelectric isolating circuit U11, the output terminal of photoelectric isolating circuit is connected with waveform shaping circuit U12, the output terminal of waveform shaping circuit U12 is connected with the pi type filter input end be made up of electric capacity C19, resistance R25, electric capacity C20, the output terminal of pi type filter is connected with the input end of VI change-over circuit, and the output terminal of VI change-over circuit is the output terminal of valve position feedback signal output loop.
Described control machines drive motor rotating loop comprises valve and drives control circuit and valve pass control circuit, valve leaves control circuit and comprises device for power switching Q2, valve closes control circuit and comprises device for power switching Q3, the valve opening of microprocessor and shutdown signal output terminal Pb0, Pb1 respectively with two device for power switching Q2, the base stage of Q3 is connected, device for power switching Q2, the grounded emitter of Q3, the collector of device for power switching Q2 is connected with the input end of scr triggering device U14, the collector of device for power switching Q3 is connected with the input end of scr triggering device U15, the output terminal of scr triggering device U14 is connected with controllable silicon Q4 input end, the output terminal of controllable silicon Q4 is connected with electric motor starting valve ON switch with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R34, the output terminal of controllable silicon Q4 is connected with center line with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R35, the output terminal of scr triggering device U15 is connected with the input end of controllable silicon Q5, the output terminal of controllable silicon Q5 is connected with electric motor starting valve OFF switch with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R39, and the output terminal of controllable silicon Q5 is connected with center line with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R40, controllable silicon Q4,5 is connected with AC220V output terminal.
Described code-disc optimum configurations loop comprises SA code-disc, SB code-disc and SC sensitivity adjustment code-disc, SA code-disc is connected with port Pb2, Pb3 of microprocessor, SB code-disc is connected with microprocessor port Pd6, Pd7, and SC sensitivity adjustment code-disc is connected with microprocessor port Pb4-7.
Described key-press input arranges loop and comprises button KS, button KO, button KC, and the output terminal of button KS, button KO, button KC is connected with microprocessor port Pc1, Pc6, Pc7 respectively.
The utility model also comprises storage unit U9, and described storage unit adopts 24C02 chip, and the port Pd3-4 of microprocessor is connected with the SCL pin of storage unit and SDA pin.
The utility model also comprises JTAG, and described JTAG is connected with microprocessor.
The RST port of described microprocessor is connected with the Vcc port of microprocessor through diode D9, the RST port of microprocessor is connected with the anode of diode D9, the Vcc port of microprocessor is connected with the negative electrode of diode D9, diode D9 two ends are parallel with resistance R10, the Vcc port of microprocessor is through electric capacity C16 ground connection, and the RST port of processor is through electric capacity C15 ground connection.
The utility model discloses a kind of intelligent servo controller, belong to the intelligent Servocontrol device driving electric actuator.Conditioning signal DC4 ~ 20mA that the utility model reception host computer or regulator send, carries out high-precision rotating control to the motor of valve, accurate positioning valve position; And valve position signal is fed back to controller, valve position signal is converted to DC4 ~ 20mA simultaneously and give computing machine or valve seat opening table.The utility model both by the exact position operating in the on-the-spot pass of regulating valve family of power and influence valve opening arbitrarily of button, can arrange arbitrarily dead band size again; The control model of positive and negative effect can also be selected arbitrarily, and valve positioning precision.The utility model adopt epoxy encapsulation, have volume little, without safeguard, anti-interference, reliable and stable, quite convenient by button operation field adjustable valve.The utility model can apply to, in fields such as oil, chemical industry, iron and steel, light industry, tap water, be mainly used on electric actuator, electrically operated valve.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram
Fig. 2 is the utility model circuit connection diagram
Wherein, 1-main signal input circuit, 2-valve position feedback position signalling input circuit, 3-valve position feedback signal output loop, 4-control machines drive motor rotating loop, 5-key-press input arranges loop, 6-code-disc optimum configurations loop, 7-runs and malfunction indicator lamp loop, 8-microprocessor.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the utility model is described in further detail:
A kind of intelligent servo controller, comprise main signal input circuit 1, valve position feedback position signalling input circuit 2, valve position feedback signal output loop 3, control machines drive motor rotating loop 4, key-press input arranges loop 5, code-disc optimum configurations loop 6, run and malfunction indicator lamp loop 7 and microprocessor 8, main signal input circuit is connected with the input end of microprocessor with the output terminal of valve position feedback position signalling input circuit, key-press input arranges loop and is connected with the input end of microprocessor with the output terminal in code-disc optimum configurations loop, the output terminal of microprocessor and the input end of valve position feedback signal output loop, the input end in control machines drive motor rotating loop is connected with the input end in operation and malfunction indicator lamp loop.
What microprocessor U6 adopted is ATmega16 chip, and it carries 10,8 tunnel A/D change-over circuit.
The operational amplifier U7 that main signal input circuit comprises 2 wave filters, is made up of voltage amplifier U7-1 and voltage follower U7-2, the input end of the first wave filter be made up of resistance R4, electric capacity C13 and resistance R5 is connected with the output terminal of host computer or regulator, and the output terminal of the first wave filter is connected with the input end of voltage amplifier U7-1.7 pin of operational amplifier are connected with the second wave filter, 7 pin of operational amplifier U7 are connected with 6 pin, be connected with the input end of voltage follower 5 pin of i.e. operational amplifier U7 and 6 pin of the output terminal of voltage amplifier are connected, 1 pin of operational amplifier U7 is connected with 2 pin through resistance R8,2 pin are through resistance R7 ground connection, and 3 pin are connected with the first wave filter through resistance R6.The output terminal of voltage follower U7-2 is connected with the second filter input end be made up of resistance R9 and electric capacity C14, and the second wave filter is connected with the input end Pa0 of microprocessor.Conditioning signal DC4 ~ 20mA that host computer or regulator send, by the RC filtering dividing potential drop again of R4, C13, R5, then by the amplification of voltage amplifier U7-1 and the voltage follow of voltage follower U7-2, finally by the RC filtering of R9, C14, become reliable and stable d. c. voltage signal, directly send into the Pa0 port of microprocessor U6.
The wave filter that valve position feedback position signalling input circuit comprises RV change-over circuit, voltage amplifier U8 and is made up of resistance R19 and electric capacity C17, RV change-over circuit comprises the Wheatstone bridge be made up of resistance R11-R14 and plastic potentiometer, plastic potentiometer is arranged between resistance R11 and R12, the output terminal of Wheatstone bridge is arranged between R13, R14 and on the slider of plastic potentiometer respectively, and the 5V power end of Wheatstone bridge is arranged between resistance R11 and resistance R13.The input end of RV change-over circuit is the input end of valve position feedback position signalling input circuit, the output terminal of RV change-over circuit is connected with the input end of voltage amplifier U8, the output terminal of voltage amplifier U8 is connected with wave filter, and the output terminal of wave filter is connected with the input end Pa1 of microprocessor.3 pin of voltage amplifier U8 are connected between resistance R13 and resistance R14,2 pin are through resistance R15 ground connection, 1 pin is connected with 6 pin through resistance R17 through resistance R16 is connected with 2 pin while, 6 pin are connected with 7 pin through resistance R18,5 pin are connected with the slider of plastic potentiometer, and 7 pin are connected with the Pa1 port of microprocessor through resistance R19.The Pa1 port of microprocessor is through electric capacity C17 ground connection.Valve position position signalling have employed the popular plastic potentiometer having high resolving power and anti-wear performance at present, and its Standard resistance range is 0 ~ 1k Ω, becomes Wheatstone bridge with 4 resistors match, does R/V conversion.The voltage signal that Wheatstone bridge exports by the amplification of voltage amplifier U8, carries out RC filtering finally by R19, C17, becomes reliable and stable d. c. voltage signal again, directly sends into the Pa1 mouth of microprocessor.
Valve position feedback signal output loop comprises photoelectric isolating circuit U11 and VI change-over circuit, and photoelectric isolating circuit U11 is connected with the input of 5V power supply.The output terminal Pd5 of microprocessor is connected with the input end of photoelectric isolating circuit U11 through resistance R20.An output terminal of photoelectric isolating circuit U11 is connected with 24V positive source with stabilivolt D12 through resistance R21.Another output terminal of photoelectric isolating circuit U11 is connected with milliammeter through resistance R22, and connect through stabilivolt D10, D12 and 24V positive source, stabilivolt D10 is in parallel with electric capacity C18.Stabilivolt D10 is connected with the output terminal of photoelectric isolating circuit U11 through resistance R23.The output terminal of photoelectric isolating circuit is connected with waveform shaping circuit U12, the output terminal of waveform shaping circuit U12 is connected with the pi type filter input end be made up of electric capacity C19, resistance R25, electric capacity C20 through resistance R24, the output terminal of pi type filter is connected with the anode of the operational amplifier U13 of VI change-over circuit, the operational amplifier U13 of VI change-over circuit is connected with the base stage of triode Q1 through resistance R26, the negative terminal of operational amplifier U13 is connected with triode Q1 emitter through resistance R27, and the concentrated pole of triode Q1 connects the negative pole of 24V power supply through milliammeter.The emitter of triode Q1 is connected with 24V positive source with stabilivolt D12 through resistance R28.The output terminal of VI change-over circuit is the output terminal of valve position feedback signal output loop.Valve position feedback output signal is by microprocessor U6 output frequency signal.Square wave is become by waveform shaping circuit U12 shaping again after the Phototube Coupling of photoelectric isolating circuit U11.Again by becoming direct current after the pi type filter filtering of C19, R25, C20, more directly carrying out V/I conversion by VI change-over circuit, exporting the valve position feedback signal DC4 ~ 20mA of isolation.
Control machines drive motor rotating loop comprises valve and drives control circuit and valve pass control circuit, and valve leaves control circuit and comprises device for power switching Q2, and valve closes control circuit and comprises device for power switching Q3, and above-mentioned two device for power switching Q2, Q3 are IGBT.The valve opening of microprocessor is connected with the base stage of two device for power switching Q2, Q3 respectively with shutdown signal output terminal Pb0, Pb1, the grounded emitter of device for power switching Q2, Q3.The collector of device for power switching Q2 is connected with the input end of scr triggering device U14, and the emitter of device for power switching Q2 is connected with base stage through resistance R41.The collector of device for power switching Q3 is connected with the input end of scr triggering device U15, and the emitter of device for power switching Q3 is connected with base stage through resistance R42.The output terminal of scr triggering device U14 is connected with controllable silicon Q4 input end, the output terminal of controllable silicon Q4 is connected with electric motor starting valve ON switch with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R34, and the output terminal of controllable silicon Q4 is connected with center line with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R35; The output terminal of scr triggering device U15 is connected with the input end of controllable silicon Q5, the output terminal of controllable silicon Q5 is connected with electric motor starting valve OFF switch with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R39, and the output terminal of controllable silicon Q5 is connected with center line with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R40; Controllable silicon Q4, Q5 and AC220V output terminal connect.Drive the valve of valve to open and control to be the port Pb0 output switching signal by microprocessor U6.When the port Pb0 of microprocessor U6 exports high level time, device for power switching Q2 conducting, makes the MOC3063 chip conducting of scr triggering device U14, makes controllable silicon Q4 be in conducting state, and valve leaves control signal and drives electrically operated valve to rotate forward valve opening.Same reason, valve closes and controls to be the port Pb1 output switching signal by microprocessor U6, when the port PB1 of microprocessor U6 exports high level time, device for power switching Q3 conducting, make the MOC3063 chip conducting of scr triggering device U15, now controllable silicon Q5 is then in conducting state, and valve closes control signal and drives electrically operated valve reversion to close valve.
The alternately change that the utility model exports by controlling microprocessor port Pb0 and Pb1, reaches the valve positioning precision of raising, reduces the effect of inertia.
First, by receiver regulator signal DC4 ~ 20mA, when signal intensity value exceedes the dead band value of setting, servo controller starts Pb0 and exports high level, starts to rotate forward valve opening.Because the time of valve event is the time lagging behind signal response all the time, so when valve event position is soon close to precalculated position time, unexpected Pb0 stops, output low level, and motor stops rotating forward.Because the motor that affects by inertia can be rotated further and stop slowly.While Pb0 stops suddenly, start PB1 immediately export high level, make motor reversal, then stop suddenly again the output of Pb1 at once.What start reversion is exactly just in time in a flash that motor rotates forward an electrical brake after dead electricity, can add after speed motor rotates forward dead electricity and stop fast.Same reason, time valve is closed in valve reversion, servo controller starts PB1 and exports high level, start reversion and close valve, so when valve event position is soon close to precalculated position time, it is unexpected that PB1 stop, output low level, motor stops reversion, because of the impact by inertia, motor can be rotated further, while PB1 stops suddenly, start PB0 immediately and export high level, motor is rotated forward, then stop PB0 suddenly again at once, start and rotate forward in a flash, it is exactly just in time an electrical brake after motor reversal dead electricity, stop fast after accelerating motor reversal dead electricity.Generally the fast part close to precalculated position scheduled volume in advance, reverse starting stops suddenly again crying the electrical brake time interval.Select unified scheduled volume in advance, select suitable electrical brake 2 time interval, energy quick shutdown, and valve is accurately positioned at a certain position.While motor action, be attended by the change of pilot lamp.
Code-disc optimum configurations loop comprises SA code-disc, SB code-disc and SC sensitivity adjustment code-disc, SA code-disc is connected with port Pb2, Pb3 of microprocessor, SB code-disc is connected with microprocessor port Pd6, Pd7, and SC sensitivity adjustment code-disc is connected with microprocessor port Pb4-7.SA code-disc, SB code-disc are all connected with 5V power supply through resistance with each way switch of SC sensitivity adjustment code-disc.
SA code-disc selects the Positive-Negative Action state in code-disc optimum configurations loop, is wherein positive interaction pattern as SA=1; When SA=2 is, state is being set; It is reaction pattern as SA=3.When input conditioning signal DC electric current is 4 ~ 20mA, code-disc optimum configurations loop is positive interaction pattern, and when input conditioning signal DC electric current is 4mA, valve is at closed positions; When input conditioning signal DC electric current is 20mA, valve is at fully open position; When input conditioning signal DC electric current changes increase from 4mA to 20mA, valve closes valve from valve to be opened, continuous valve opening.Contrary to code-disc optimum configurations loop is reaction pattern, when input conditioning signal DC electric current is 4mA, valve is in standard-sized sheet position; When input conditioning signal DC electric current is 20mA, valve is in complete shut-down position; When inputting conditioning signal DC electric current and changing from 4 ~ 20mA, valve constantly closes valve.SB code-disc selects the position of fault valve, and as SB=1, fault valve is in fully open position; As SB=2, fault valve keeps original position; As SB=3, fault valve is in closed positions.The scope that arranges 1 ~ 10 of SC sensitivity adjustment code-disc, corresponding dead band is 0.5 ~ 5.0%, each scale dead band changes 0.5%.
Key-press input arranges loop and comprises button KS, button KO, button KC, and the output terminal of button KS, button KO, button KC is connected with microprocessor port Pc1, Pc6, Pc7 respectively, and above-mentioned three keyswitches are all connected with 5V supply voltage by resistance.Design of Servo Controller three is pressed strong: setting key KS, valve opening key KO, close valve key KC.Arranging under state, SA must being set to 2, after having demarcated, then SA is established go back to origin-location.By ShiShimonoseki valve key KC, actuator closes and runs, and unclamps and just stops; Close valve key KC and setting key KS to press simultaneously, namely again demarcate closed positions.Close not dead situation if there is valve, just again can demarcate closed positions.Press valve opening key KO, actuator open shop.Unclamp and just stop; Valve opening key KO and setting key KS presses simultaneously, again can demarcate fully open position.Valve position feedback exports DC4 ~ 20mA, is also by button operation, is calibrated by controller software.Output signal 4mA at zero point can be demarcated by button operation, in output channel serial connection DC ammeter, when output signal is punctual, valve opening key KO or pass valve key KC can be operated the numerical value that reometer shows is changed, until be that standard 4.00mA is accurate.Same method can demarcate Full-span output 20mA.
The utility model also comprises storage unit U9, and described storage unit adopts 24C02 chip, and described storage unit is connected with 5V supply voltage, and the port Pd3-4 of microprocessor is connected with the SCL pin of storage unit and SDA pin.
The utility model also comprises JTAG, and described JTAG is connected with microprocessor.The concrete electrical brake time interval, be surplus mutually according to the size in electric actuator 90 degree of actuation times and product dead band after comprehensively determine again.Microprocessor, by connecting JTAG by Pc2 ~ Pc5 port, adopts JTAG mouth pattern, conveniently can determine the suitable time interval by online software debugging, software modification parameter.
The RST port of microprocessor is connected with the Vcc port of microprocessor through diode D9, the RST port of microprocessor is connected with the anode of diode D9, the Vcc port of microprocessor is connected with the negative electrode of diode D9, diode D9 two ends are parallel with resistance R10, the Vcc port of microprocessor is through electric capacity C16 ground connection, the RST port of microprocessor is through electric capacity C15 ground connection, and the Vcc port of microprocessor is connected with 5V power supply.
Conditioning signal DC4 ~ 20mA that the utility model utilizes main signal input circuit reception host computer or regulator to send, after microprocessor carries out computational analysis to conditioning signal, valve position feedback input signal, key-press input signal and code-disc signalization, export control signal, high-precision rotating control is carried out to the motor of valve, accurate positioning valve position, and valve position signal is fed back to controller, valve position signal is converted to direct current signal DC4 ~ 20mA simultaneously and give computing machine or valve seat opening table.The utility model adopts software calibration, without potentiometer design thus before formal calibration, must simply judge the correctness of hardware when hardware appearance exception time, to there will be the phenomenon that cannot calibrate; So devise several monitoring point in whole circuit, judge that whether hardware circuit is normal, the particularly inspection of Switching Power Supply.In order to improve antijamming capability, this product design software filtering, makes the applicability that product is more stable, reliable, improve product.In order to reach accurate location, except calculating the time interval of electrical brake, preferably installing true valve additional when online software debugging, test of comparing, then revising the electrical brake time interval.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.The content be not described in detail in this instructions belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. an intelligent servo controller, it is characterized in that comprising main signal input circuit, valve position feedback position signalling input circuit, valve position feedback signal output loop, control machines drive motor rotating loop, key-press input arranges loop, code-disc optimum configurations loop, run and malfunction indicator lamp loop and microprocessor, main signal input circuit is connected with the input end of microprocessor with the output terminal of valve position feedback position signalling input circuit, key-press input arranges loop and is connected with the input end of microprocessor with the output terminal in code-disc optimum configurations loop, the output terminal of microprocessor and the input end of valve position feedback signal output loop, the input end in control machines drive motor rotating loop is connected with the input end in operation and malfunction indicator lamp loop.
2. intelligent servo controller according to claim 1, what it is characterized in that microprocessor adopts is ATmega16 chip.
3. intelligent servo controller according to claim 2, it is characterized in that main signal input circuit comprises 2 wave filters, the operational amplifier U7 be made up of voltage amplifier and voltage follower, by resistance R4, electric capacity C13 is connected with the output terminal of host computer or regulator with the input end of the first wave filter that resistance R5 forms, the output terminal of the first wave filter is connected with the input end of voltage amplifier U7-1, the output terminal of voltage amplifier is connected with the input end of voltage follower, the output terminal of voltage follower is connected with the second filter input end be made up of resistance R9 and electric capacity C14, second wave filter is connected with the input end Pa0 of microprocessor.
4. intelligent servo controller according to claim 2, it is characterized in that valve position feedback position signalling input circuit comprises RV change-over circuit, voltage amplifier U8 and the wave filter be made up of resistance R19 and electric capacity C17, RV change-over circuit comprises the Wheatstone bridge be made up of resistance R11-R14 and plastic potentiometer, plastic potentiometer is arranged between resistance R11 and R12, the output terminal of Wheatstone bridge is arranged at R13 respectively, between R14 and on the slider of plastic potentiometer, the input end of RV change-over circuit is the input end of valve position feedback position signalling input circuit, the output terminal of RV change-over circuit is connected with the input end of voltage amplifier U8, the output terminal of voltage amplifier U8 is connected with wave filter, the output terminal of wave filter is connected with the input end Pa1 of microprocessor.
5. intelligent servo controller according to claim 2, it is characterized in that valve position feedback signal output loop comprises photoelectric isolating circuit U11 and VI change-over circuit, the output terminal Pd5 of microprocessor is connected with the input end of photoelectric isolating circuit U11, the output terminal of photoelectric isolating circuit is connected with waveform shaping circuit U12, the output terminal of waveform shaping circuit U12 with by electric capacity C19, resistance R25, the pi type filter input end that electric capacity C20 forms connects, the output terminal of pi type filter is connected with the input end of VI change-over circuit, the output terminal of VI change-over circuit is the output terminal of valve position feedback signal output loop.
6. intelligent servo controller according to claim 2, it is characterized in that control machines drive motor rotating loop comprises device for power switching Q2 and device for power switching Q3, the valve opening of microprocessor and shutdown signal output terminal Pb0, Pb1 respectively with two device for power switching Q2, the base stage of Q3 is connected, device for power switching Q2, the grounded emitter of Q3, the collector of device for power switching Q2 is connected with the input end of scr triggering device U14, the collector of device for power switching Q3 is connected with the input end of scr triggering device U15, the output terminal of scr triggering device U14 is connected with controllable silicon Q4 input end, the output terminal of controllable silicon Q4 is connected with electric motor starting valve ON switch with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R34, the output terminal of controllable silicon Q4 is connected with center line with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R35, the output terminal of scr triggering device U15 is connected with the input end of controllable silicon Q5, the output terminal of controllable silicon Q5 is connected with electric motor starting valve OFF switch with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R39, and the output terminal of controllable silicon Q5 is connected with center line with the resistance-capacitance absorption protection circuit that electric capacity forms via resistance R40, controllable silicon Q4,5 is connected with AC220V output terminal.
7. intelligent servo controller according to claim 2, it is characterized in that code-disc optimum configurations loop comprises SA code-disc, SB code-disc and SC sensitivity adjustment code-disc, SA code-disc is connected with port Pb2, Pb3 of microprocessor, SB code-disc is connected with microprocessor port Pd6, Pd7, and SC sensitivity adjustment code-disc is connected with microprocessor port Pb4-7.
8. intelligent servo controller according to claim 2, it is characterized in that key-press input arranges loop and comprises button KS, button KO, button KC, the output terminal of button KS, button KO, button KC is connected with microprocessor port Pc1, Pc6, Pc7 respectively.
9. intelligent servo controller according to claim 2, characterized by further comprising storage unit U9 and JTAG, described storage unit adopts 24C02 chip, and the port Pd3-4 of microprocessor is connected with the SCL pin of storage unit and SDA pin, and described JTAG is connected with microprocessor.
10. intelligent servo controller according to claim 2, it is characterized in that the RST port of microprocessor is connected with the Vcc port of microprocessor through diode D9, the RST port of microprocessor is connected with the anode of diode D9, the Vcc port of microprocessor is connected with the negative electrode of diode D9, diode D9 two ends are parallel with resistance R10, the Vcc port of microprocessor is through electric capacity C16 ground connection, and the RST port of processor is through electric capacity C15 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429590.5U CN204101913U (en) | 2014-07-31 | 2014-07-31 | Intelligent servo controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429590.5U CN204101913U (en) | 2014-07-31 | 2014-07-31 | Intelligent servo controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204101913U true CN204101913U (en) | 2015-01-14 |
Family
ID=52270326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420429590.5U Active CN204101913U (en) | 2014-07-31 | 2014-07-31 | Intelligent servo controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204101913U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929785A (en) * | 2016-06-22 | 2016-09-07 | 武金玉 | Actuator |
| CN106527266A (en) * | 2016-11-24 | 2017-03-22 | 河钢股份有限公司承德分公司 | Servo amplifier control system and control method |
| CN109739205A (en) * | 2019-03-04 | 2019-05-10 | 华能山东发电有限公司烟台发电厂 | Electric Actuator intelligent locking control method based on DCS system |
| CN113541689A (en) * | 2020-04-17 | 2021-10-22 | 国控精仪（北京）科技有限公司 | Automatic calibration circuit and calibration method for analog acquisition potentiometer-free device |
-
2014
- 2014-07-31 CN CN201420429590.5U patent/CN204101913U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929785A (en) * | 2016-06-22 | 2016-09-07 | 武金玉 | Actuator |
| CN105929785B (en) * | 2016-06-22 | 2019-01-25 | 武金玉 | Actuator |
| CN106527266A (en) * | 2016-11-24 | 2017-03-22 | 河钢股份有限公司承德分公司 | Servo amplifier control system and control method |
| CN109739205A (en) * | 2019-03-04 | 2019-05-10 | 华能山东发电有限公司烟台发电厂 | Electric Actuator intelligent locking control method based on DCS system |
| CN113541689A (en) * | 2020-04-17 | 2021-10-22 | 国控精仪（北京）科技有限公司 | Automatic calibration circuit and calibration method for analog acquisition potentiometer-free device |
| CN113541689B (en) * | 2020-04-17 | 2023-07-25 | 国控精仪（北京）科技有限公司 | Automatic calibration circuit and calibration method for analog acquisition potentiometer-free |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204101913U (en) | Intelligent servo controller | |
| CN105353726B (en) | A kind of electronics pressing machine nonshared control unit and control method | |
| CN103149386B (en) | Electronic load module of power supply aging test and power supply aging test system | |
| CN202083402U (en) | Non-contact type real-time position detecting device for electric actuator | |
| CN104950690B (en) | A kind of inertial-stabilized platform controlling system semi-physical simulation method | |
| CN102156263A (en) | Excitation system simulation test device for synchronous generator | |
| CN204883407U (en) | Servo pressure control system | |
| CN106452231A (en) | Brush DC motor driver and control method thereof | |
| CN203224779U (en) | Electric locomotive driver controller testing stand | |
| CN108120731A (en) | A kind of automatic irradiation control system of reactor neutron activation | |
| CN206135675U (en) | Digital steering engine | |
| CN201689319U (en) | Field PLC debugging instrument | |
| CN102707656B (en) | Intelligent controller for shot blasting machine | |
| CN109759898B (en) | Electric spindle fault test diagnosis system for engraving and milling machine and diagnosis method thereof | |
| CN108089521A (en) | A kind of hydraulic machinery test stand electric control system based on WinCC and PLC | |
| CN104730274A (en) | Programmed multifunctional rotation speed signal conversion device | |
| CN204101929U (en) | With the intelligent servo controller of liquid crystal Chinese display | |
| CN110244159A (en) | A kind of Multifunctional potentiometer Performance Test System | |
| CN106527399B (en) | SCM Based automobile electric control system fault injection system | |
| CN201860288U (en) | Non-speed sensor speed-adjusting device of DC motor | |
| Yajun et al. | A design of elevator positioning control system model | |
| CN202093353U (en) | Float glass cold side rate tracking and adaptive control device | |
| CN204868876U (en) | A controlling means for intelligent machine hand | |
| CN204758024U (en) | Dish dress rotational speed consumption tester based on singlechip | |
| CN204025832U (en) | The intelligent two-flow of CAN bus gathers valve positioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |