As a result ofFrequency conversionImplement the many sided requirement that can get used to manufacturing technology, control application to go up in industrial automation especially, technology of communication frequency control has risen for mainstream of industrial automation pilot. The function that communicates timing system can have been mixed compare of photograph of dc timing system, can exceed dc system even. The total number that it uses controls fashion, make information processing ability increases substantially. At the same time it blends in practical experience and skill software function ceaselessly in, the complex control that uses imitate to control means to cannot come true already became a possibility today, makeTransducerdependability, workability, can safeguard sexual function to be able to enrich. Because transducer has timing property range of good, timing is wide with moving efficiency tall, use operation is convenient, and appropriate wait for a series of advantages at be the same as other equipment interface, application is so wider and wider.
It is with Danfoss transducer below exemple make one introduction: When transducer occurrence breakdown, protect functional movement, transducer instantly tripping operation, electric machinery arrives by moving condition stop, call the police brighten of diode of demonstrative red glow, clew of liquid crystal indication part calls the police information code or breakdown content. Can analyse the breakdown limits that judges transducer at this moment according to information code, if be soft breakdown, can undertake transducer cutting off the power restoration. If return irreclaimable normal, can use a hand to move only or automatic initialization, express according to parameter after initialization is normal input data set afresh. Such, transducer can be in breakdown returns to normal below lighter circumstance use. If classics above holds the transducer after making still abnormal, be about to check the place that transducer damages according to breakdown phenomenon, change yuan of parts of an apparatus or circuit board. The clew order that transducer must press when breakdown is searched undertakes. For example: Origin: WWw.tede.cn
(1) breakdown code 36, clew is given priority toPower sourceBreakdown, criterion module of three-phase commutate bridge is likely puncture short circuit or open a way.
(2) breakdown code 14, breakdown of clew ground connection, winding of electric machinery of examination of watch of usable million Europe, examineCableWhether does insulation damage.
(3) breakdown code 37, clew inverter breakdown, criterionIGBTModule is likely puncture short circuit. IGBT module short circuit, advocate loop fuse also fusing. When photograph of IGBT module some door pole damages when, transducer can have appeared to shed protective phenomenon, answer IGBT module to undertake checking at this moment.
When transducer moves, if appear often to current limliting calls the police or shed protection too, it is normal to should check laden part and transducer IGBT module, it is normal to be like, criterion this breakdown is transducer advocate board attaint of sensor of electric current of formula of compensation of Huo Er magnetism. Sensor of electric current of formula of compensation of suddenly Er magnetism is one kind measures the electric current of periodic quantity of sine and blame sine to be worth, the weaveform of electric current of can real report, provide a control and protective signal to transducer. This cell that uses on transducer is the product of series of LA of Swiss LEM company for the most part, sensor of electric current of formula of compensation of magnetism of suddenly Er of its LA series can be divided for 3 end derivative foot and 5 end derivative foot two kinds. Transducer size is distinct, advocate board go up norms of sensor of electric current of formula of compensation of magnetism of LA series suddenly Er is not identical also.
Production moves make clear, the caustic gas experience that sticks glue fiber to produce the spot to contain vulcanization hydrogen gives transducer circuit boardElectron yuan parts of an apparatusBring quite great harm, we are pressing fresh wind to improve ambient conditions through giving electric control room to send, use Le TaiElectronic lineRoad board uses spray gum, to transducer circuit board surface makes preservative coating processing, lowered the fault rate of transducer effectively, improved service life.
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??ElectronYuan parts of an apparatus feels to electrostatic dispute Chang Min, after like report of quiet and secluded discharge is destroyed, will cause an electron yuan soft puncture of parts of an apparatus, soft puncture can bring about circuit board to cannot work normally. Changing so must notice when circuit board, must ensure to ring of hand of good ground connection is worn before the job, take wrist direct ground contact, ensure human body is in 0 potential, with preventing human body electrostatic right circuit board causes damage. If do not have annulus of ground connection hand, changing usable hand feels transducer metal case when circuit board, make of human body electrostatic through transducer crust dropt (its metal crust guides electrostatic) . To ensure transducer circuitry board the safety of spare parts, during keep, should put in have antistatic deposit in the bag of material.
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