CN207703949U - A kind of multi-purpose frequency conversion automatic system tester - Google Patents

A kind of multi-purpose frequency conversion automatic system tester Download PDF

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Publication number
CN207703949U
CN207703949U CN201720713913.7U CN201720713913U CN207703949U CN 207703949 U CN207703949 U CN 207703949U CN 201720713913 U CN201720713913 U CN 201720713913U CN 207703949 U CN207703949 U CN 207703949U
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CN
China
Prior art keywords
frequency conversion
current
conversion automatic
automatic system
signal generator
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Expired - Fee Related
Application number
CN201720713913.7U
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Chinese (zh)
Inventor
王东良
宁志海
郑义清
钟庆华
王芳
刘志强
宋国清
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王东良
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Priority to CN201720713913.7U priority Critical patent/CN207703949U/en
Application granted granted Critical
Publication of CN207703949U publication Critical patent/CN207703949U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of multi-purpose frequency conversion automatic system testers, belong to electronic field.The multi-purpose frequency conversion automatic system tester includes current measurement module and signal generator module;Current measurement module is used in the given value of current terminal series-shunt with frequency converter, measures the DC current of given value of current terminal;Signal generator module is connected with the input circuit of PID regulator measured value.The utility model solves the problems, such as that test frequency conversion automatic control system running parameter is less efficient, improves measurement and debugs the efficiency of frequency conversion automatic control system running parameter.Measurement and debugging of the utility model for the running parameter of frequency conversion automatic control system.

Description

A kind of multi-purpose frequency conversion automatic system tester
Technical field
The utility model is related to electronic field, more particularly to a kind of multi-purpose frequency conversion automatic system tester.
Background technology
Frequency conversion automatic system includes PID controller, DC power supplier, pressure transmitter (or other sensors) and frequency conversion Device.
If frequency conversion automatic system breaks down in the process of work, the measuring instrument pair using frequency conversion automatic system is needed The running parameter of frequency conversion automatic system measures, and then automatic to frequency conversion according to the running parameter of frequency conversion system by staff System carries out fault diagnosis.In the related technology, the measuring instrument of frequency conversion system is multimeter, in use multimeter to frequency conversion system It when running parameter measures, needs to adjust multimeter to DC current measurement pattern, measures pressure transmitter (or other biographies Sensor) arrive controller electric current;Then the DC current on Mersure Controler to inverter current terminal again;Staff's root again According to frequency conversion system running parameter to frequency conversion system carry out fault diagnosis when, staff can according to pressure transmitter (or its Its sensor) to the electric current of controller, judge whether input circuit breaks down;According on controller to inverter current terminal DC current, judge whether frequency converter breaks down.
Due in the related technology, when being measured to the running parameter of frequency conversion automatic system using multimeter, needing work Make personnel gradually to adjust multimeter to DC current measurement pattern, DC voltage measurement pattern, and the 4-20 that sensor provides Milliampere unadjustable, therefore, the step of measuring frequency conversion automatic system running parameter, is cumbersome, and multimeter gear is more, converts shelves Error easy to operate when position measures the less efficient of frequency conversion system running parameter, and existing signal generator cannot also give Direct current signal measures the DC current in interlock circuit simultaneously.
Utility model content
In order to solve the problems, such as to measure the less efficient of frequency conversion automatic system running parameter, the utility model provides one kind Multi-purpose frequency conversion automatic system tester.The technical solution is as follows:
A kind of tester of multi-purpose frequency conversion system, the frequency conversion automatic system includes current measurement module and signal generator Module, current measurement module are used in the given value of current terminal series-shunt with frequency converter, measure the direct current of given value of current terminal Stream;Signal generator module is connected with the input circuit of PID regulator measured value.
The current measurement module is used for when connecting with the input circuit, is measured arbitrary straight in the input circuit Galvanic electricity stream;
The signal generator module is used for when being connect with the input circuit, is adjusted and is given in the input circuit DC current.
The current measurement module is made of auxiliary circuit and liquid crystal ammeter, and the range of DC ammeter is 50 milliamperes;
The signal generator module is made of auxiliary circuit and liquid crystal ammeter and 4-20 milliamperes of generators.
In conclusion the utility model provides a kind of multi-purpose frequency conversion automatic system tester, signal generator module with The input circuit of PID regulator measured value connects, and adjusts the DC current in PID input circuits;Current module and frequency converter Current terminal connects, the given DC current of Measurement for Inverter speed governing, the problem of not necessarily considering whether total ground, so, it can be with Directly use running parameter of the multi-purpose frequency conversion automatic system tester that the utility model embodiment provides to frequency conversion automatic system It measures and debugs, simplify the step of measuring frequency conversion automatic system running parameter, improve disposition frequency conversion automatic system Efficiency.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described.
Fig. 1 is a kind of structural schematic diagram for multi-purpose frequency conversion automatic system tester that the utility model embodiment provides;
Fig. 2 is a kind of operation principle signal for multi-purpose frequency conversion automatic system tester that the utility model embodiment provides Figure;
Fig. 3 is a kind of wiring schematic diagram for multi-purpose frequency conversion automatic system tester that the utility model embodiment provides.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type embodiment is described in further detail.
As shown in Figure 1, the utility model embodiment provides a kind of multi-purpose frequency conversion automatic system tester.The frequency conversion system Tester include:Watchcase 01, current measurement part 02 and signal generator part 03, current measurement part 02 and signal occur Device part 03 is located inside watchcase 01, and current measurement part 02 includes:Three and half liquid crystal DC ammeters 021, quick aviation are inserted First 023 and power switch 022 and auxiliary circuit part;Signal generator part 03 includes signal generator and three liquid crystal watches 031, power switch 032, quick aviation plug 033, potentiometer 036 and voltage and current output selector switch 037.
DC ammeter 021 is used to, when inverter current terminal input circuit is connected using quick aviation plug 023, survey Measure frequency converter current terminal speed governing DC current;Three liquid crystal watches 031 are used to detect given inverter current terminal or PID is defeated The 4-20ma current signals entered, potentiometer 034 are connected for adjusting size of current, quick aviation plug 033 for interlock circuit. There are two jacks for setting at the top of watchcase, which is current measurement jack and 4-20ma (2-10v) jack.
The multi-purpose frequency conversion automatic system tester further includes four p-wires, four wire clamps, two test plugs, the test Line includes:One end of two testing current lines, each p-wire connects two wire clamps, and the other end connects a test plug;Electricity Respectively connection one two (at prime negative black) wire clamp, the other end connect jack 023, electric current letter for one end of current test line 024 and 025 Respectively connection two (at prime negative black) wire clamps, the other end connect jack 033 for one end of number line 034 and 035.
In conclusion in the multi-purpose frequency conversion automatic system tester provided due to the utility model embodiment, the electric current Measurement module is used for when connecting with the input circuit, measures the DC current in the input circuit;The signal occurs Device is used for when being connect with the input circuit, and the DC current given in the input circuit is adjusted.So can be direct The multi-purpose frequency conversion automatic system tester provided using the utility model embodiment carries out the running parameter of frequency conversion automatic system It measures, simplifies the step of measuring frequency conversion automatic system running parameter, improve the effect for measuring frequency conversion automatic system running parameter Rate.
As shown in Fig. 2, a kind of work original of the multi-purpose frequency conversion automatic system tester provided for the utility model embodiment Manage schematic diagram.
Mainly be made of two large divisions, current measurement module and signal generator module, current measurement module be used for When the given value of current terminal series-shunt of frequency converter, the DC current of given value of current terminal is measured;Signal generator is used to adjust with PID The input circuit of device measured value is connected or is connect with inverter current input terminal.It should be noted that signal generator part 03 includes signal generating circuit and three liquid crystal watches 031, power switch 032, quick aviation plug 033, potentiometer 036 and electric current Voltage signal selecting switch 037.
Optionally, 500 Ohmic resistances, which are inscribed, in signal generator part 03 can export 2-10 volt DC voltages,
Specifically, DC ammeter 021 and 031 is liquid crystal ammeter in the utility model embodiment, so this practicality is new Ammeter 021 and 031 in type embodiment can use under the environment (such as night) of dark, i.e. the utility model The tester for the frequency conversion system that embodiment provides can use in the environment of dark, and the range of DC ammeter 021 is 50 milliamperes;The range of DC ammeter 031 is 50 milliamperes.
Jack there are two being also set up on watchcase 01, respectively:Current measurement jack and 4-20ma (2-10v) output plughole.
The multi-purpose frequency conversion automatic system tester further includes four p-wires, four wire clamps, two test plugs, multiple P-wire includes:One end of two pairs of testing current lines, each pair of p-wire connects two wire clamps, and the other end connects a test and inserts Head.
Testing current line 024 connects a wire clamp (black negative and red just) with 025 one end, and the other end connects a jack 023;Respectively connection one (red just black negative) wire clamp, the other end connect aviation jack 033 for one end of current signal line 034 and 035.
As shown in figure 3, when frequency conversion robot control system(RCS) cisco unity malfunction, the utility model embodiment can be used to provide Multi-purpose frequency conversion automatic system tester tests the running parameter of the system, and then carries out failure to the system by staff and examine It is disconnected.Can the positive and negative wire clamp of this tester signal generator be connected to PID controller measured values respectively first and input 35 and 36 ends Sub (by taking Fuji PXR9 as an example), former connecting line is removed;The wire clamp of current measurement module seals in inverter current and gives circuit, also It is to say that 32 terminal lines need to be disconnected, positive wire clamp, which is connected to frequency converter, to be carried out line (former 32# lines) cathode wire clamp and be connected to 32# terminals.
Exemplary, in constant pressure water supply automatic control system, frequency converter not raising speed is provided using the utility model embodiment When multi-purpose frequency conversion automatic system tester is tested, if the frequency converter that current measurement is tested is inputted to constant current as 4 millis Peace, Regulate signal generator potential device clockwise, current measurement value do not change, it can be determined that and PID controller is damaged, if there is Variation may be pressure transmitter damage.
In conclusion due in the tester of the frequency conversion automatic system of the utility model embodiment offer, current measurement mould Block is used in the given value of current terminal series-shunt with frequency converter, measures the DC current of given value of current terminal;Signal generator mould Block is connected with the input circuit of PID regulator measured value..So directly the utility model embodiment can be used to provide The tester of frequency conversion automatic system is measured and is debugged to the running parameter of frequency conversion system, simplifies test frequency conversion system work The step of parameter, improves the efficiency of disposition frequency conversion automatic system work.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (2)

1. a kind of multi-purpose frequency conversion automatic system tester, which is characterized in that the frequency conversion automatic system tester includes that electric current is surveyed Module and signal generator module are measured, current measurement module is used in the given value of current terminal series-shunt with frequency converter, measures electricity Stream gives the DC current of terminal;Signal generator module is connected with the input circuit of PID regulator measured value;
The current measurement module is used for when connecting with the input circuit, measures the DC current in the input circuit;
The signal generator module is used for when being connect with the input circuit, is adjusted straight in the given input circuit Galvanic electricity stream.
2. a kind of multi-purpose frequency conversion automatic system tester according to claim 1, which is characterized in that
The current measurement module is made of auxiliary circuit and liquid crystal ammeter, and the range of DC ammeter is 50 milliamperes;
The signal generator module is made of 4-20 milliamperes of generators and auxiliary circuit.
CN201720713913.7U 2017-06-19 2017-06-19 A kind of multi-purpose frequency conversion automatic system tester Expired - Fee Related CN207703949U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720713913.7U CN207703949U (en) 2017-06-19 2017-06-19 A kind of multi-purpose frequency conversion automatic system tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720713913.7U CN207703949U (en) 2017-06-19 2017-06-19 A kind of multi-purpose frequency conversion automatic system tester

Publications (1)

Publication Number Publication Date
CN207703949U true CN207703949U (en) 2018-08-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720713913.7U Expired - Fee Related CN207703949U (en) 2017-06-19 2017-06-19 A kind of multi-purpose frequency conversion automatic system tester

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110133337A (en) * 2019-05-16 2019-08-16 中国一冶集团有限公司 A kind of signal imitation device and adjustment method for instrument debugging

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110133337A (en) * 2019-05-16 2019-08-16 中国一冶集团有限公司 A kind of signal imitation device and adjustment method for instrument debugging

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180807

Termination date: 20190619

CF01 Termination of patent right due to non-payment of annual fee