CN109787191A - A kind of detection of asynchronous motor supplied with variable frequency and protection system and method - Google Patents
A kind of detection of asynchronous motor supplied with variable frequency and protection system and method Download PDFInfo
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Abstract
The present invention provides a kind of detections of asynchronous motor supplied with variable frequency and protection system and method.Wherein, which includes: master controller, power supply, frequency converter, analog signal detection module, storage and clock circuit module, communication circuit module, breakdown judge module, human-computer interaction module；Analog signal detection module acquires the parameter of asynchronous machine, and acquired parameter is output to breakdown judge module, and breakdown judge module is analyzed and determined whether meet according to acquired parameter and parameter preset；When determining failure, fault parameter information is recorded in memory by human-computer interaction module for master controller, and issues prompt messages or control motor stopping.The present invention improves the precision and reliability of detection by real-time getparms and accuracy, and accurate judgement can be made in failure, to effectively be protected and be avoided the generation of safety accident to equipment according to different nature of trouble.
Description
Technical field
The present invention relates to motor technology more particularly to a kind of detection of asynchronous motor supplied with variable frequency and protection system and method.
Background technique
With the quick development of power electronic technique and automatic control technology, frequency control motor technology is constantly mature,
The every field such as industrial and agricultural production, national defense construction and people's daily life have been widely used in, significant economic effect is brought
Benefit and social benefit.But while special industry carries out production activity, running environment is severe and is chronically at high consumption operation
State, failure caused by the asymmetrical voltage failure and symmetric fault of annual motor is increasing, when motor breaks down, gently
It then may cause economic loss heaviness, life security heavy then that staff may be jeopardized.
Traditional variable-frequency motor detection is single, protection precision is lower, actuation time error is big, cannot achieve electrical fault
Comprehensive detection and effective integration lead to fault detection judgement inaccuracy.Therefore, asynchronous motor supplied with variable frequency is must be able at runtime to electricity
Machine is measured in real time, and can be alarmed or be shut down in the event of a failure, to ensure the safe and reliable operation of motor.
Summary of the invention
It is existing at least to solve the embodiment of the invention provides a kind of detection of asynchronous motor supplied with variable frequency and protection system and method
Technology detects asynchronous motor supplied with variable frequency and protects the technical problem that system detection is single, precision is not high.
According to an aspect of an embodiment of the present invention, a kind of detection of asynchronous motor supplied with variable frequency and protection system are provided, comprising:
Power supply, frequency converter, motor, master controller, analog signal detection module, breakdown judge module, storage and clock circuit module are led to
Believe module, human-computer interaction module.
Further, the output end of the master controller and analog signal detection module, breakdown judge module, communication module
Connection, the main controller module are connect with storage with clock circuit module and human-computer interaction module port；The master controller
It communicates for the sampling of the various signals to asynchronous machine, conversion, data processing, data storage, alarm indication and with frequency converter
Etc. cores control task.
Further, the receiving end of the analog signal detection module connects with the output end of the asynchronous machine, is used for
Detection obtains the parameter, and acquired parameter is sent to master controller and breakdown judge module.
Further, the receiving end of the breakdown judge module is connect with the output end of the analog signal detection module,
The ginseng is indicated for analyzing and determining whether obtained parameter and the parameter preset of the asynchronous machine meet, and in judging result
When the several and parameter preset is not met, the asynchronous machine failure is determined.
Further, the storage is connect with clock circuit module with the master controller, and storage circuit is used to store event
The record and the parameter of motor for hindering information are saved, clock circuit be used to record in real time the time that a certain failure occurs and
Motor operating time etc. provides the reference of science for the periodic maintenance of equipment.
Further, the receiving end of the communication module is connect with the output end of the frequency converter, and converter parameter is led to
It crosses the communication module and is transferred to master controller, realize master controller to frequency converter and control, including parameter is carried out to frequency converter
Setting, frequency, which sets, start and stop etc., to be operated.
Further, the human-computer interaction module is connect with the master controller, is worked for real-time display variable-frequency motor
Parameter, and the adjustment of every on-site parameters, at the same when motor is abnormal can accurately be shown after implementing protection it is detailed
Alarm failure information, and keyboard inquiry historical failure information etc. can be passed through.
Further, electric current is whole when the parameter includes: the symmetric faults such as overload, stall, the short circuit of the asynchronous machine
The setting of definite value, the setting of zero sequence and negative-sequence current setting valve, the setting of the excessively high protection value of motor temperature are different when unbalanced fault
Walk voltage, the asynchronous machine electric current of motor.
Further, the parameter of the asynchronous machine is acquired, and is output to the event of asynchronous machine according to the parameter preset
Hinder judgment module, by analyzing and determining whether the parameter of output meets with the parameter preset；If output parameter with it is described pre-
When setting parameter is not met, after determining the asynchronous machine failure, fault parameter information is recorded in memory, and issue alarm
Prompt information or the control asynchronous machine are shut down.
According to another aspect of an embodiment of the present invention, a kind of detection of asynchronous motor supplied with variable frequency and guard method, packet are additionally provided
It includes:
Step 1: after asynchronous motor supplied with variable frequency detection starts with guard method, each functional module initialization, three phase mains are first carried out in advance
Stable three-phase alternating-current supply is provided to motor through frequency converter, and provides positive and negative 12V or positive 5V voltage to master controller, is made each
A functional module works normally.
Step 2: different asynchronous machines can be arranged by keyboard circuit and liquid crystal display and check various parameters,
When if necessary to carry out parameter adjustment, three are thened follow the steps；If you do not need to carrying out parameter adjustment, four are thened follow the steps.
Step 3: when motor needs to carry out parameter adjustment, setting various parameters by keyboard circuit and liquid crystal display,
The setting of current setting when including symmetric faults such as overload, stall, short circuits, zero sequence and negative-sequence current adjusting when unbalanced fault
The setting of value；The setting etc. of the excessively high protection value of motor temperature executes step 4 after parameter adjustment.
Step 4: using the normal operating conditions parameter of analog signal detection module acquisition motor, the parameter includes: different
Walk voltage, asynchronous machine electric current and the motor stator winding temperature of motor；Signal sampling will test asynchronous with processing circuit
The signals such as voltage, asynchronous machine electric current and the motor stator winding temperature of motor are controlled by conditioning circuit output voltage signal
0~2.5V is sent into master controller and carries out A/D acquisition, converts the electric signal that master controller can be handled for these analog signals.
Step 5: the parameter preset that breakdown judge module receives detection data and asynchronous machine analyzed and determined whether
Meet, with judge asynchronous machine work whether failure.
Step 6: breakdown judge module carries out breakdown judge according to the parameter preset of collected parameter and asynchronous machine；
If the parameter preset of collected non-synchronous motor parameter and asynchronous machine meets, seven are thened follow the steps；If it is determined that asynchronous electricity
Machine failure sends fault-signal to master controller progress troubleshooting and issues prompt messages or control described asynchronous
Motor stopping.
Step 7: the normal parameter received or fault-signal are transferred to storage circuit and clock circuit by master controller,
By fault message, normal operating parameters, system parameter, Protection parameters, and time occurred etc. carries out record preservation, to set
Standby periodic maintenance provides reference.
Step 8: storage circuit sends master controller by communication module for the parameter of preservation, and master controller is through communicating
Module realizes frequency converter and controls, including carries out parameter setting, frequency to frequency converter and set, start and stop etc. to operate.
Step 9: master controller sends control instruction to keyboard circuit and liquid crystal display circuit, keyboard by communication module
Circuit and liquid crystal display circuit are settable and check various parameters and query history fault message, enter protection shape in parameter
Liquid crystal display circuit shows corresponding electrical parameter values or fault message by logic state that key is inquired when state, and equipped with
Fault data power down protection storage circuit, if necessary to carry out parameter adjustment then return step two.
Asynchronous motor supplied with variable frequency detection of the invention and protection system and method, for carrying out asynchronous machine detection and protection.
Existing detection exists with protection technique detects single and detection accuracy limitation, and compared to this, the present invention is used
The hybrid detection and protection system that integrated device and instrument and equipment combine, may be implemented the real-time detection of asynchronous machine, in real time
The working condition of detection asynchronous machine whether break down, can find that the failure of asynchronous machine makes accurate judgement as early as possible
And it is protected.The present invention improves the precision and reliability of detection by real-time getparms and accuracy, and can be
Accurate judgement is made when failure, effectively avoids impacting equipment and the generation of safety accident.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright examples and descriptions thereof are used to explain the present invention, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is asynchronous motor supplied with variable frequency detection according to an embodiment of the present invention and protection system schematic；
Fig. 2 is the flow chart of asynchronous motor supplied with variable frequency detection and protection systems approach according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction with the drawings and specific embodiments
Embodiments of the present invention are described in further detail.
Embodiment 1.
In conjunction with Fig. 1, a kind of detection of asynchronous motor supplied with variable frequency and protection system include: three phase mains 90, frequency converter 80, motor
60, master controller 30, analog signal detection module 50, breakdown judge module 40, storage and clock circuit module 20, communication module
70, human-computer interaction module 10.
Three phase mains 90 is provided to stable three-phase alternating-current supply to motor 60 through frequency converter 80, and to master controller 30
Positive and negative 12V or positive 5V voltage are provided, and work normally each functional module.
Master controller 30 is connect with the output end of analog signal detection module 50, breakdown judge module 40, communication module 70,
Master controller 30 is connect with storage with clock circuit module 20 and human-computer interaction module 10；Master controller 30 is used for asynchronous machine
The samplings of various signals, conversion, data processing, data storage, alarm indication and the cores control task such as communicate with frequency converter.
The output port of the internal storage of master controller 30 is connect with storage with clock circuit module 20, for storing event
The parameter of the record and motor that hinder information is saved；The inside CCP module of master controller 30 is connected with communication module 70
It connects, produces and exports width and period adjustable impulse wave；8 modes of A/D converter built in master controller 30 input
Channel is connected with analog signal detection module 50, uses this eight pins as motor side three-phase current, motor stator winding temperature
The input channel of degree, signal, converts the electric signal that master controller can be handled for these analog signals；Master controller 30 it is interior
The peripheral interface of the various functions in portion is connect with human-computer interaction module 10, for warning output, key-press input, liquid crystal display etc.；
The internal status register interface of master controller 30 is connect with breakdown judge module 40, for analyzing and determining parameter and asynchronous machine
Parameter preset whether meet, with determine asynchronous machine whether failure.
80 output end of frequency converter is connect with motor 60, obtains bus direct current by cloth control rectifier by three phase mains 90,
Three-phase inverting circuit is loaded into after bulky capacitor filters, output PWM waveform carrys out driving motor.
Analog signal detection module 50 includes: current detection module, voltage detection module, temperature detecting module etc..Simulation
Signal detection module 50 is connected with the output end of asynchronous machine 60, acquires the electric current of asynchronous machine, the electricity of asynchronous machine in real time
The parameters such as pressure, the temperature of asynchronous machine stator winding, and acquisition parameter is sent into main controller module 30 and is handled, by this
A little analog signals are converted into the electric signal that main controller module 30 can be handled.
The electric current for detecting asynchronous machine utilizes current detection module, and Hall current is sensed by current signal sample circuit
Device punching is connected on the input terminal of motor three-phase, and real electrical machinery three-phase current is converted into proportional 0 by Hall current sensor
~5V voltage signal, voltage signal have the voltage follower circuit of high input impedance through voltage, after enhancing driving capability, then through low
Enter the A/D conversion port of master controller 30 after pass filter.
The voltage for detecting asynchronous machine utilizes voltage detection module, carries out voltage detecting by Hall-type voltage sensor,
Using Dual channel detection mode, the state of real-time monitoring sensor, and it is sent into master controller 30 and carries out A/D acquisition reading voltage biography
The collected voltage signal of sensor institute carries out numerical value conversion and is transferred to display circuit, and in backstage real-time recorded data.
The temperature for detecting asynchronous machine stator winding utilizes temperature detecting module, passes through temperature sensor measurement asynchronous machine
Temperature, the resistance signal under different temperatures is converted into voltage by analog circuit by the temperature signal that temperature sensor is incuded
Signal is sent into temperature signal sampling and processing circuit using the temperature signal that amplifying circuit will test.
The signal that signal sampling and processing circuit will test is controlled by conditioning circuit output voltage signal 0~2.
5V is sent into master controller 30 and carries out A/D acquisition, and amplitude is no more than the operating voltage of master controller 30, to avoid master control is caused
The controlled silicon effect of device 30 processed causes the overheat of master controller 30 even to be burnt, and adds one in the output end of signal conditioning circuit
The RC filter of constant of fixing time filters out instantaneous interference signal.
40 receiving end of breakdown judge module is connect with 50 output end of analog signal detection module, for obtained by analyzing and determining
Parameter and the parameter preset of asynchronous machine whether meet, with determine asynchronous machine work whether failure；It will if breaking down
Fault-signal sends master controller 30 to, makes corresponding control and indication signal according to breakdown judge rule, while by work
State parameter real-time storage.
Breakdown judge module 40 is according to the voltage of asynchronous machine, the electric current of asynchronous machine, asynchronous machine stator winding temperature
Parameter preset etc. collected parameter and asynchronous machine is analyzed and determined, if there is overload, stall, equal imbalance of breaking
Then failure is made decision according to stator winding temperature, when the failure and temperature occurs being more than limiting temperature, determine asynchronous
Electrical fault, and send fault-signal to master controller 30.
Breakdown judge module 40 is if it is determined that there are the failures such as short circuit, anti-phase, phase fault, single-phase earthing, two phase ground
When, determine asynchronous machine failure, and send fault-signal to master controller 30.
If breakdown judge module 40 judgement be not above-mentioned failure, and occur stator winding temperature be more than setting limit when,
It determines asynchronous machine failure, and sends fault-signal to master controller 30.
If the determination of breakdown judge module 40 is broken down, fault-signal is exported to master controller 30, master controller
30 send out corresponding control and indication signal to peripheral circuit according to breakdown judge rule, realize the stopping or system of asynchronous machine
It is dynamic, sound and light alarm signal is issued, fault code is sent out, asynchronous machine is made to be effectively protected；And it is set by the defeated people's circuit of key
Set the running parameter, Protection parameters, communications setting parameter etc. of asynchronous machine.
Storage is connect with clock circuit module 20 with master controller 30, comprising: storage circuit, real time clock circuit.
Storage circuit is connect with the master controller 30, using bi-directional transfer of data bus, for storing fault message, being
System parameter, Protection parameters etc. are saved, and to reduce the line of circuit board, improve system reliability；Real time clock circuit and master
Controller 30 connects, and for recording the time and motor operating time that a certain failure occurs, provides ginseng for the periodic maintenance of equipment
It examines.
The receiving end of communication module 70 is connect with the output end of frequency converter 80, the output end and master controller of communication module 70
30 port is connected；Master controller 30 is transferred to by communication module 70 for 80 parameter of frequency converter, keeps master controller 30 right
Frequency converter 80 realizes control, including carries out parameter setting, frequency to frequency converter 80 and set, start and stop etc. to operate.
Human-computer interaction module 10 includes: keyboard circuit, liquid crystal display circuit, failure alarm circuit.Human-computer interaction module 10
It is connect with master controller 30, is used for real-time display asynchronous machine running parameter, and the adjustment of every on-site parameters, while motor
Detailed fault message can be accurately shown after implementing protection when being abnormal and is alarmed, and keyboard inquiry history can also be passed through
Fault message etc..
Keyboard circuit is connect with master controller 30, for being arranged and checking various parameters, including overload, stall, short circuit etc.
The setting of current setting when symmetric fault, the setting of zero sequence and negative-sequence current setting valve, motor temperature mistake when unbalanced fault
The setting etc. of high protection value；5 keys are arranged in keyboard circuit, take free-standing keystroke pattern to save I/O mouthfuls of master controller.
Liquid crystal display circuit is connect with master controller 30, and liquid crystal display circuit uses liquid crystal display, for showing current electricity
Electromechanical stream, electric moter voltage, motor stator winding temperature, motor continuous operating time parameter etc.；When parameter enters guard mode
Liquid crystal display circuit can show corresponding electrical parameter values or fault message by the logic state that key is inquired, and equipped with event
Hinder data cut-off protection storage circuit, records fault data parameter, in system cut-off with easy-to-look-up electrical fault reason.
Failure alarm circuit is connect with master controller 30, if master controller 30 detection back signal parameter do not meet it is pre-
Setting parameter, system determination are broken down, then 30 port of master controller will issue high level signal, and driving loudspeaker is alarmed, together
When the warning mark that issues on a liquid crystal display and save fault message to storage circuit.
Embodiment 2.
As shown in Fig. 2, a kind of detection of asynchronous motor supplied with variable frequency described in above-described embodiment and protection systems approach, including it is following
Step:
Step 1: after asynchronous motor supplied with variable frequency detection starts with protection systems approach, each functional module initialization is first carried out in advance, is passed through
Three phase mains provides stable three-phase alternating-current supply to motor through frequency converter, and provides positive and negative 12V or positive 5V to master controller
Voltage, and work normally each functional module.
Step 2: different asynchronous machines can be arranged by keyboard circuit and liquid crystal display and check various parameters,
When if necessary to carry out parameter adjustment, three are thened follow the steps；If you do not need to carrying out parameter adjustment, four are thened follow the steps.
Step 3: when motor needs to carry out parameter adjustment, being arranged various parameters by keyboard circuit and liquid crystal display,
The setting of current setting when including symmetric faults such as overload, stall, short circuits, zero sequence and negative-sequence current adjusting when unbalanced fault
The setting of value, the setting etc. of the excessively high protection value of motor temperature execute step 4 after parameter adjustment.
Step 4: using the normal operating conditions parameter of analog signal detection module acquisition motor, parameter includes: asynchronous electricity
Voltage, asynchronous machine electric current and the motor stator winding temperature of machine；The asynchronous machine that signal sampling and processing circuit will test
The signals such as voltage, asynchronous machine electric current and motor stator winding temperature control 0 by conditioning circuit output voltage signal~
2.5V is sent into master controller and carries out A/D acquisition, converts the electric signal that master controller can be handled for these analog signals.
Step 5: the parameter preset that breakdown judge module receives detection data and asynchronous machine analyzed and determined whether
Meet, with judge asynchronous machine work whether failure.
Step 6: breakdown judge module carries out breakdown judge according to the parameter preset of collected parameter and asynchronous machine；
If the parameter preset of collected non-synchronous motor parameter and asynchronous machine meets, seven are thened follow the steps；If it is determined that asynchronous electricity
Machine failure sends fault-signal to master controller progress troubleshooting and issues prompt messages or control described asynchronous
Motor stopping.
Step 7: the normal parameter received and fault-signal are transferred to storage circuit and clock circuit by master controller,
By fault message, normal operating parameters, system parameter, Protection parameters, and time occurred etc. carries out record preservation, to set
Standby periodic maintenance provides reference.
Step 8: storage circuit sends master controller by communication module for the parameter of preservation, and master controller is through communicating
Module realizes frequency converter and controls, including carries out parameter setting, frequency to frequency converter and set, start and stop etc. to operate.
Step 9: master controller sends control instruction to keyboard circuit and liquid crystal display circuit, keyboard by communication module
Circuit and liquid crystal display circuit are settable and check various parameters and query history fault message, enter protection shape in parameter
Liquid crystal display circuit shows corresponding electrical parameter values or fault message by logic state that key is inquired when state, and equipped with
Fault data power down protection storage circuit, if necessary to carry out parameter adjustment then return step two.
The embodiments of the present invention do not represent the advantages or disadvantages of the embodiments only for description.
In embodiment provided herein, disclosed technology contents be can be realized in other ways.Wherein,
System embodiment described above is only schematical, such as each functional module, can be a kind of logic function,
Or it is integrated into a system；In addition, described mutual communication connection can be through individual interface or module
Between connection, or electrically, or other form.
Each functional module can be to be physically separated or may not be and be physically separated, it can collection
It in Cheng Yi unit place module, or may be distributed in multiple modules, select portion therein according to the actual needs
Point or whole module achieve the purpose of the solution of this embodiment.
The above is only embodiments of the present invention, it is noted that the those of ordinary skill in this skill wood field is come
It says, without departing from the scope of the appended claims, some changes and improvement can also be made, for model of the invention
Enclose, be to the disclosure done of the present invention it is illustrative and not restrictive, the scope of the present invention is limited by the appended claims
It is fixed.
Claims (4)
1. a kind of asynchronous motor supplied with variable frequency detection and protection system characterized by comprising
Asynchronous motor supplied with variable frequency detection and protection system include master controller, power supply, frequency converter, analog signal detection module,
Breakdown judge module, storage and clock circuit module, communication module, communication module；
The output end company of master controller, the master controller and analog signal detection module, breakdown judge module, communication module
It connects, the main controller module is connect with storage with clock circuit module and human-computer interaction module port；The master controller is used
It communicates in the sampling of the various signals to asynchronous machine, conversion, data processing, data storage, alarm indication and with frequency converter
Core control task；
The receiving end of analog signal detection module, the analog signal detection module is connected with the output end of the asynchronous machine
It connects, obtains the parameter for detecting, and acquired parameter is sent to master controller and breakdown judge module；
Breakdown judge module, the receiving end of the breakdown judge module are connected with the output end of the analog signal detection module
It connects, indicates institute for analyzing and determining whether obtained parameter and the parameter preset of the asynchronous machine meet, and in judging result
It states parameter and when the parameter preset is not met, determines the asynchronous machine failure；
Storage and clock circuit module, the storage are connect with clock circuit module with the master controller, and storage circuit is used to
The parameter of the record and motor that store fault message is saved, and clock circuit is used to record what a certain failure occurred in real time
Time and motor operating time etc. provide the reference of science for the periodic maintenance of equipment；
Communication module, the receiving end of the communication module are connected with the output end of the frequency converter, converter parameter are passed through
The communication module is transferred to master controller, realizes master controller to frequency converter and controls, including carries out parameter to frequency converter and set
It sets, the operation such as frequency sets, starts and stops；
Human-computer interaction module, the human-computer interaction module are connect with the master controller, are worked for real-time display variable-frequency motor
Parameter, and the adjustment of every on-site parameters, at the same when motor is abnormal can accurately be shown after implementing protection it is detailed
Alarm failure information, and keyboard inquiry historical failure information etc. can be passed through.
2. system according to claim 1, which is characterized in that the parameter includes:
The setting of current setting when the symmetric faults such as overload, stall, the short circuit of the asynchronous machine, zero sequence when unbalanced fault
With the setting of negative-sequence current setting valve, the setting of the excessively high protection value of motor temperature, voltage, the asynchronous machine electric current of asynchronous machine.
3. system according to claim 1 characterized by comprising
The parameter of the asynchronous machine is acquired, and is output to the breakdown judge module of asynchronous machine according to the parameter preset, is led to
It crosses and analyzes and determines whether the parameter of output meets with the parameter preset；If the parameter of output is not met with the parameter preset
When, after determining the asynchronous machine failure, fault parameter information is recorded in memory, and issue prompt messages or
The asynchronous machine is controlled to shut down.
4. a kind of asynchronous motor supplied with variable frequency detection and guard method characterized by comprising
Step 1: after asynchronous motor supplied with variable frequency detection starts with guard method, each functional module initialization, three-phase alternating current are first carried out in advance
Power supply provides stable three-phase alternating-current supply to motor through frequency converter, and provides positive and negative 12V or positive 5V voltage to master controller,
Work normally each functional module；
Step 2: different asynchronous machines can be arranged by keyboard circuit and liquid crystal display and check various parameters, if
When needing to carry out parameter adjustment, three are thened follow the steps；If you do not need to carrying out parameter adjustment, four are thened follow the steps；
Step 3: when motor needs to carry out parameter adjustment, various parameters are set by keyboard circuit and liquid crystal display, including
The setting of current setting when the symmetric faults such as overload, stall, short circuit, zero sequence and negative-sequence current setting valve when unbalanced fault
Setting；The setting etc. of the excessively high protection value of motor temperature executes step 4 after parameter adjustment；
Step 4: using the normal operating conditions parameter of analog signal detection module acquisition motor, the parameter includes: asynchronous electricity
Voltage, asynchronous machine electric current and the motor stator winding temperature of machine；The asynchronous machine that signal sampling and processing circuit will test
The signals such as voltage, asynchronous machine electric current and motor stator winding temperature control 0 by conditioning circuit output voltage signal~
2.5V is sent into master controller and carries out A/D acquisition, converts the electric signal that master controller can be handled for these analog signals；
Step 5: breakdown judge module receives detection data and the parameter preset of asynchronous machine is analyzed and determined whether accord with
Close, with judge asynchronous machine work whether failure；
Step 6: breakdown judge module carries out breakdown judge according to the parameter preset of collected parameter and asynchronous machine；If
The parameter preset of collected non-synchronous motor parameter and asynchronous machine meets, and thens follow the steps seven；If it is determined that asynchronous machine event
Barrier sends fault-signal to master controller progress troubleshooting and issues prompt messages or the control asynchronous machine
It shuts down；
Step 7: the normal parameter received or fault-signal are transferred to storage circuit and clock circuit by master controller, by event
Barrier information, normal operating parameters, system parameter, Protection parameters, and the time occurred etc. carry out record preservation, are equipment
Periodic maintenance provides reference；
Step 8: storage circuit sends master controller by communication module for the parameter of preservation, and master controller is through communication module
Frequency converter is realized and is controlled, including carries out parameter setting, frequency to frequency converter and set, start and stop etc. to operate；
Step 9: master controller sends control instruction to keyboard circuit and liquid crystal display circuit, keyboard circuit by communication module
It is settable and check various parameters and query history fault message with liquid crystal display circuit, when parameter enters guard mode
Liquid crystal display circuit shows corresponding electrical parameter values or fault message by the logic state that key is inquired, and is equipped with faulty
Data cut-off protection storage circuit, if necessary to carry out parameter adjustment then return step two.
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| CN116930758A (en) * | 2023-09-14 | 2023-10-24 | 山东星科智能科技股份有限公司 | Asynchronous motor comprehensive performance test system and test method |
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| CN114625041A (en) * | 2022-02-21 | 2022-06-14 | 杭州加速科技有限公司 | ATE equipment fault storage detection method and equipment |
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| CN117110751A (en) * | 2023-08-25 | 2023-11-24 | 上海莘汭驱动技术有限公司 | Servo motor driver adjustment and measurement system and method |
| CN116930758A (en) * | 2023-09-14 | 2023-10-24 | 山东星科智能科技股份有限公司 | Asynchronous motor comprehensive performance test system and test method |
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Application publication date: 20190521 |