CN105548878A - Running state monitoring module of single-way motor - Google Patents
Running state monitoring module of single-way motor Download PDFInfo
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- CN105548878A CN105548878A CN201510859515.1A CN201510859515A CN105548878A CN 105548878 A CN105548878 A CN 105548878A CN 201510859515 A CN201510859515 A CN 201510859515A CN 105548878 A CN105548878 A CN 105548878A
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Abstract
The present invention relates to a running state monitoring module of a single-way motor. The running state monitoring module of the single-way motor comprises a power supply conversion module, a signal acquisition module and a signal conditioning module. The power supply conversion module is configured to convert a wide voltage input separation stabilized voltage supply to a power supply required by a differential voltage comparator through a LDO voltage stabilizer; the signal acquisition module is configured to fasten a hose clamp photoelectric encoder at a motor shaft or a shaft coupling, the hollow and entity edge part of the encoder is arranged in the groove of a groove-type optocoupler; and the signal conditioning module is configured to convert frequency signals of 0 to 1KHz to direct current voltage signals of 0 to 10V, convert voltage signals of 0 to 10V to current signals of 4 to 20mA for outputting, externally provide an on-off output, and indirectly indicate the ratio of the current speed and a rated speed on a LED. The installation is easy and the cost performance is high, and the running state monitoring module of single-way motor is convenient for performing seamless integration with systems such as an industry PLC, a DCS and the like, and has a good application and promotion value.
Description
Technical field
The present invention relates to the solution of the single channel machine operating condition monitoring that a kind of function can be reduced, cost performance is high, particularly relate to a kind of single channel machine operating condition monitoring modular, belong to electrical engineering field.
Background technology
Nowadays, along with the raising day by day of living standard, people are more and more extensive to the use of motor, and more and more relying on, in real life, to maintenance and the monitoring of motor using state, is vital.Foundry Works's electric-driving installation is applied as master with stepper motor, load motor and three phase alternating current motor, for non-frequency or servo applications, the conventional methods detecting the real-world operation state of motor own or parameter is proximity switch, rotary transformer, photoelectric encoder.During proximity switch detects with pulse output form, whether and running speed low-speed running, but helpless to the state-detection within a turn, then can increase proximity switch number and mechanical erection difficulty to segmentation; Rotary transformer detects motor speed mainly with 0 ~ 10V voltage output form, incremental optical-electricity encoder with pulse output form, absolute optical encoder detects motor rotations by correspondence, hybrid grating encoder is in conjunction with increment type and absolute optical encoder function, rotary transformer and the high and mechanical erection difficulty of photoelectric encoder price large, the especially narrow place of installing space.To sum up, the rare display rotating speed corresponding data directly perceived of all conventional sense ways, is unfavorable for that scene is patrolled and examined and troubleshooting.
For this reason, how providing a kind of single channel machine operating condition monitoring modular more intuitively, is the object that the present invention studies.
Summary of the invention
For overcoming the deficiencies in the prior art part, the invention provides a kind of utilization larynx band photoelectric code disk and fluted body optocoupler, solving the difficult problem that conventional sense mechanism is difficult to install; Use signal condition technology, the multi-signal way of output such as pulse, voltage, electric current of reflection motor speed be provided, be convenient to DCS or PLC system integrated; Utilize conventional syllogic LED D.C. voltmeter, display rotating speed corresponding data directly perceived, is more of value to scene and patrols and examines and troubleshooting.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of single channel machine operating condition monitoring modular, comprises power transfer module, signal acquisition module and Signal-regulated kinase;
Described power transfer module inputs isolation stabilized voltage supply by LDO voltage stabilizer by the power supply of Power convert needed for differential-voltage comparator by wide pressure; Described wide pressure input isolation stabilized voltage supply adopts ZY2424WRBCS-3W power supply to carry out DC24V voltage stabilizing and exports conversion, and described LDO voltage stabilizer adopts three terminal regulator LM7812 by the DC12V power supply of DC24V Power convert needed for differential-voltage comparator;
Described signal acquisition module larynx band photoelectric code disk is anchored on motor shaft or shaft coupling is tied, code-disc hollow out and solid edge edge be placed in fluted body optocoupler groove between, by arranging code-disc hollow out number, motor pulse output frequencies under rated speed is made to be less than or equal to 1KHz; Described optocoupler adopts fluted body optocoupler EE-SX97; Described pulsed frequency is proportional to motor speed;
Described signal adjusting module comprises following four steps when carrying out signal condition:
1. adopt integrated form frequency/voltage converter that 0 ~ 1KHz frequency signal is converted to direct current 0 ~ 10V voltage signal;
Described integrated form frequency/voltage converter adopts LM2917, and built-in stabilivolt, to improve the stability of power supply, contains comparer, charge pump, high gain operational amplifier in chip;
Vo=Vcc*F*C8*R4*K；
Fmax=Icap/(C8*Vcc)；
Wherein: Vo is changing voltage, Vcc is output voltage, F is frequency, C8 is electric capacity, R4 is resistance, K is amplifier coefficient, Icap is current value, K gets representative value is that 1, Icap gets representative value 200uA; According to fluted body optocoupler response frequency parameter, Fmax goes bail for and keeps value 1KHz; Changing voltage Vo gets 0 ~ 10V, then corresponding C8 gets 8.3nF, and R4 gets 50K.
2. adopt non-isolated series of signals conditioning module 0 ~ 10V voltage signal to be converted to 4 ~ 20mA current signal to export;
Described non-isolated series of signals conditioning module adopts ZCM4566S, carries out output gain adjustment by adjustable resistance R7;
3. using described step 1. in 0 ~ 10V magnitude of voltage as the positive terminal of differential-voltage comparator, regulate adjustable resistance R6, dividing potential drop can obtain electric machine rotation whether judgement threshold value SP0_REF, end of oppisite phase as comparer inputs, result driving LED pilot lamp relatively, and externally provide output switch parameter;
Described differential-voltage comparator adopts LM111JG;
4. utilize syllogic numerical monitor D.C. voltmeter, LED indicates the ratio of present speed and rated speed indirectly.
Further, wide pressure input range DC18 ~ 36V, conversion efficiency 89%, working temperature-40 ~ 85 DEG C, maximum load 125mA, has that output can control, short-circuit protection function, and sustainable short circuit, self-recoverage, meet module application
Further, described each hollow out is tall and big in 2.1mm, is wider than 1mm, is thickly greater than 0.2mm, and hollow out interval is greater than 1mm.
Further, described integrated form frequency/voltage converter adopts LM2917, and built-in stabilivolt, to improve the stability of power supply, contains comparer, charge pump, high gain operational amplifier in chip.
Further, described non-isolated series of signals conditioning module adopts ZCM4566S, carries out output gain adjustment by adjustable resistance R7.
The invention has the beneficial effects as follows: simple installation, cost performance are high, and Seamless integration-can be carried out with the system such as industrial PLC, DCS easily, there is good application and popularization value.
Accompanying drawing explanation
Fig. 1 is system construction drawing of the present invention;
Fig. 2 is power transfer module circuit diagram of the present invention;
Fig. 3 (a) is larynx band photoelectric code disk structural drawing of the present invention;
Fig. 3 (b) combines schematic diagram for larynx band photoelectric code disk of the present invention and fluted body optocoupler;
Fig. 4 is optocoupler pulse signal acquisition circuit analysis chart of the present invention;
Fig. 5 is that light signal is converted to voltage signal circuit analysis chart;
Fig. 6 position voltage signal is converted to current signal circuit analysis figure;
Fig. 7 is multilevel iudge output circuit analysis chart;
Fig. 8 is syllogic LED electrical machine rotating speed indirect number percent indicating circuit analysis chart.
Embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with specific embodiment, the present invention is described in further detail.
Below in conjunction with accompanying drawing 1-8, the present invention is further analyzed.
As shown in Figure 1, a kind of single channel machine operating condition monitoring modular, comprises power transfer module, signal acquisition module and Signal-regulated kinase three part;
As Fig. 2, power transfer module: adopt ZY2424WRBCS-3W power module to carry out DC24V voltage stabilizing and export conversion, wide pressure input range DC18 ~ 36V, conversion efficiency 89%, working temperature-40 ~ 85 DEG C, maximum load 125mA, has the functions such as output can control, short-circuit protection, sustainable short circuit, self-recoverage, meet module application; Adopt three terminal regulator LM7812 by the DC12V power supply of DC24V Power convert needed for differential-voltage comparator.
As Fig. 3, Fig. 4, signal acquisition module: larynx band photoelectric code disk is anchored on motor shaft or shaft coupling is tied, code-disc hollow out and solid edge edge are placed between optocoupler EE-SX97 groove, by arranging code-disc hollow out number (hollow out size and interval must not be less than Fig. 3 illustrated dimension), motor pulse output frequencies under rated speed is made to be less than or equal to 1KHz (pulsed frequency is proportional to motor speed); As: Rated motor rotating speed 3600rpm (conversion is 60rps), then larynx band photoelectric code disk hollow out number is taken as 16 (1000/60=16.7), and corresponding output pulse frequency is 960Hz.
As viewed in figures 5-8, Signal-regulated kinase comprises the following steps:
1. 0 ~ 10V voltage exports: adopt LM2917 integrated form frequency/voltage converter, built-in stabilivolt is to improve the stability of power supply.Contain comparer, charge pump, high gain operational amplifier in chip, 0 ~ 1KHz frequency signal is converted to direct current 0 ~ 10V voltage signal, according to formula (1) and formula (2), related peripheral capacitance resistance ware optimum configurations is as Fig. 5.
Vo=Vcc*F*C8*R4*K；(1)
Fmax=Icap/(C8*Vcc)；(2)
Wherein: Vo is changing voltage, Vcc is output voltage, F is frequency, C8 is electric capacity, R4 is resistance, K is amplifier coefficient, Icap is current value; It is that 1, Icap gets representative value 200uA that K gets representative value;
According to fluted body optocoupler response frequency parameter (more than 1kHz (mean value 3kHz)), Fmax goes bail for and keeps value 1KHz;
Changing voltage Vo gets 0 ~ 10V, then corresponding C8 gets 8.3nF, and R4 gets 50K.
2. 4 ~ 20mA electric current exports: adopt non-isolated series of signals conditioning module ZCM4566S, 0 ~ 10V voltage signal is converted to 4 ~ 20mA current signal and exports, carry out output gain adjustment, as Fig. 6 by adjustable resistance R7.
3. motor rotation whether output switch parameter: 1. signal condition is saved nursed one's health 0 ~ 10V magnitude of voltage, as the positive terminal of differential-voltage comparator LM111JG; Adjustment adjustable resistance R6, dividing potential drop can obtain electric machine rotation whether judgement threshold value SP0_REF, and the end of oppisite phase as comparer inputs, the result driving LED pilot lamp compared, and externally provides output switch parameter; As Fig. 7.
4. the indirect number percent LED of motor speed indicates: comprehensive cost performance factor, utilizes syllogic numerical monitor D.C. voltmeter, indirectly the ratio (gauge outfit data * 10 is number percent) of instruction present speed and rated speed, as Fig. 8.
In sum, monitoring modular project organization of the present invention is terse, the multi-signal way of outputs such as pulse, voltage, electric current, LED instruction are provided, each funtion part can be reduced according to system integration demand, the single channel machine operating condition monitoring solution utilizing larynx band photoelectric code disk and fluted body optocoupler to provide a kind of simple installation, cost performance high, and Seamless integration-can be carried out with the system such as industrial PLC, DCS easily, there is good application and popularization value.
Be described in detail the technical scheme that the application provides above, apply embodiment herein and set forth the principle of the application and embodiment, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.
Claims (5)
1. a single channel machine operating condition monitoring modular, is characterized in that: comprise power transfer module, signal acquisition module and Signal-regulated kinase; Described power transfer module inputs isolation stabilized voltage supply by LDO voltage stabilizer by the power supply of Power convert needed for differential-voltage comparator by wide pressure; Described wide pressure input isolation stabilized voltage supply adopts ZY2424WRBCS-3W power supply to carry out DC24V voltage stabilizing and exports conversion, and described LDO voltage stabilizer adopts three terminal regulator LM7812 by the DC12V power supply of DC24V Power convert needed for differential-voltage comparator;
Described signal acquisition module larynx band photoelectric code disk is anchored on motor shaft or shaft coupling is tied, code-disc hollow out and solid edge edge be placed in fluted body optocoupler groove between, by arranging code-disc hollow out number, motor pulse output frequencies under rated speed is made to be less than or equal to 1KHz; Described optocoupler adopts fluted body optocoupler EE-SX97; Described pulsed frequency is proportional to motor speed;
Described signal adjusting module comprises following three steps when carrying out signal condition:
Adopt integrated form frequency/voltage converter that 0 ~ 1KHz frequency signal is converted to direct current 0 ~ 10V voltage signal;
Described integrated form frequency/voltage converter adopts LM2917, and built-in stabilivolt, to improve the stability of power supply, contains comparer, charge pump, high gain operational amplifier in chip;
Vo=Vcc*F*C8*R4*K；
Fmax=Icap/(C8*Vcc)；
Wherein: Vo is changing voltage, Vcc is output voltage, F is frequency, C8 is electric capacity, R4 is resistance, K is amplifier coefficient, Icap is current value, K gets representative value is that 1, Icap gets representative value 200uA; According to fluted body optocoupler response frequency parameter, Fmax goes bail for and keeps value 1KHz; Changing voltage Vo gets 0 ~ 10V, then corresponding C8 gets 8.3nF, and R4 gets 50K;
Adopt non-isolated series of signals conditioning module 0 ~ 10V voltage signal to be converted to 4 ~ 20mA current signal to export;
Described non-isolated series of signals conditioning module adopts ZCM4566S, carries out output gain adjustment by adjustable resistance R7;
Using described step 1. in 0 ~ 10V magnitude of voltage as the positive terminal of differential-voltage comparator, regulate adjustable resistance R6, dividing potential drop can obtain electric machine rotation whether judgement threshold value SP0_REF, and the end of oppisite phase as comparer inputs, result driving LED pilot lamp relatively, and externally provide output switch parameter;
Described differential-voltage comparator adopts LM111JG;
Utilize syllogic numerical monitor D.C. voltmeter, LED indicates the ratio of present speed and rated speed indirectly.
2. a kind of single channel machine operating condition monitoring modular according to claim 1, is characterized in that: wide pressure input range DC18 ~ 36V, conversion efficiency 89%, working temperature-40 ~ 85 DEG C, maximum load 125mA.
3. a kind of single channel machine operating condition monitoring modular according to claim 1, it is characterized in that: described hollow out, each hollow out is tall and big in 2.1mm, is wider than 1mm, is thickly greater than 0.2mm, and hollow out interval is greater than 1mm.
4. a kind of single channel machine operating condition monitoring modular according to claim 1, it is characterized in that: described integrated form frequency/voltage converter adopts LM2917, built-in stabilivolt, to improve the stability of power supply, comprises comparer, charge pump, high gain operational amplifier in described LM2917.
5. a kind of single channel machine operating condition monitoring modular according to claim 1, it is characterized in that: signal adjusting module step 2. in, described non-isolated series of signals conditioning module adopts ZCM4566S, carries out output gain adjustment by adjustable resistance R7.
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| CN201510859515.1A CN105548878A (en) | 2015-12-01 | 2015-12-01 | Running state monitoring module of single-way motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113050908A (en) * | 2021-03-15 | 2021-06-29 | 华电漯河发电有限公司 | Integration technology of centralized control room LED screen broadcasting system and DCS system |
| CN114859071A (en) * | 2022-06-14 | 2022-08-05 | 北京斯年智驾科技有限公司 | Wheel speed acquisition module, device and method |
| CN115032934A (en) * | 2022-08-12 | 2022-09-09 | 中国船舶重工集团公司第七0七研究所 | Control system and implementation method of roof support reverse leveling mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050908A (en) * | 2021-03-15 | 2021-06-29 | 华电漯河发电有限公司 | Integration technology of centralized control room LED screen broadcasting system and DCS system |
| CN114859071A (en) * | 2022-06-14 | 2022-08-05 | 北京斯年智驾科技有限公司 | Wheel speed acquisition module, device and method |
| CN115032934A (en) * | 2022-08-12 | 2022-09-09 | 中国船舶重工集团公司第七0七研究所 | Control system and implementation method of roof support reverse leveling mechanism |
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Application publication date: 20160504 |