About the common breakdown analysis of SIEMENS transducer and processing

50 time end begins 20 centuries, electric drive domain undertook a main technique changes, the control of speed of AC motor implementation that will be used at constant speed drive only so, create complex, value in order to replace the costly, dc electromotor that safeguards inconvenience. Come nearly more than 10 years, reach contemporary control to enrage transmission domain to alternating current theoretically as technology of electric power electron, microelectronics technology permeate, transducer applies already extensively at the speed control of AC motor. Its mainest characteristic is to have efficient drive function and good control character. It is OK to apply on the fluid machinery such as fan, water pump, compressor managing and many electric energy; is in the industrial domain such as spin, chemical fibber, plastic, chemistry, the automata property that uses transducer can raise product quality and quantitative; to be in mechanical industry, applying transducer is to transform the important step; of unifinication of Electromechanical of traditional industry, implementation to be in factory automation technology, communication servo is replacing dc servo. The system of transmission of high speed of especially big power that covers with tiles to number from the servo of hundreds tile, arrive to be answered high accuracy, quickly from the drive of little scope timing of general requirement, large-scale timing drive, coordinate movement to much chance from stand-alone drive, can use communication timing device. Can say almost, the place that has electromotor has the use of transducer. 1 Xi Menzi is general-purpose the characteristic of transducer: Xi Menzi transducer enters Chinese market later, but its growth rate is the rapiddest. Main component is Xi Menzi transducer general-purpose, project and special model 3 kinds. Xi Menzi is general-purpose the reason that transducer grows quickly basically has the following sides: (1) rolls out new product ceaselessly, satisfy the specific requirement of different user. The newer cycle with Xi Menzi general product does not exceed 5 years. Its product can satisfy the special requirement of different user. (The communication function with powerful 2) and software of comprehensive form a complete set, it is the one big characteristic of product of Xi Menzi automation. This is made in our country papermaking, chemical industry, steely, machinery in waiting for a lot of industry to control the flying development process that advances in the round to automation from technical reformation, advantage of You Xianji competition. (The transducer of MM4 new generation that 3) rolls out nearly two years has the good framework of MasterDrive of Xi Menzi project transducer not only, still have higher performance/price ratio, although the price is having more powerful than congener product function not high however. Use BiCo function to be able to think more complex function undertakes process designing, it can be being inputted (of the number, simulative, of serial communication etc) with output (the electric current of transducer, frequency, imitate output, node output waits relay a moment) between establish Boer algebra type and mathematical relation. (Another when transducer of 4)MM4 new generation is different from other transducer marked characteristic is: What he offers to the user is a wide-open process designing platform, those who make the user can need utmost according to his is reasonable use limited natural resources to come true to control character complexly as far as possible. Functional piece can replace a few its freedom PLC realizes a few simple process designing operate. (5) because the price is low, transducer chose the former parts of an apparatus or appliance that a few bottoms carry act against one's will when make, perhaps say the rich amount that considers when choosing former parts of an apparatus is too small. For instance: Compression, be able to bear or endure lukewarm, concussion of proof voltage, electric current. Accordingly, the problem appears in the practice that uses in our country opposite more, this is the place that makes us feel special pity. Analysis of phenomenon of 2 common breakdown reachs a processing technique: Generally speaking, take the transducer that has trouble to when you, rectification bridge and IGBT module should be looked up to be burned with avometer check above all before electrify again, the trace of caustic is burned apparently on circuit board. Specific means is: With avometer (had better be to use imitate to express) resistor 1K archives, the dc that black list club receives transducer is carried (- ) extremely, the three-phase input end that measures transducer respectively with red watch club and three-phase output the resistor of end, its block value should be between 5K-10K, three-phase block value wants same, the block worth that exports end is carried than the input slightly a few smaller, and did not fill discharge phenomenon. Next, the dc that receives red watch baton transducer conversely is carried (+ ) extremely, black list club measures transducer three-phase to input the resistor of end and three-phase output end respectively, its block value should be between 5K-10K, three-phase block value wants same, the block worth that exports end is carried than the input slightly a few smaller, and did not fill discharge phenomenon. Otherwise, explain module damages. At that time cannot blind electrify, prohibit especially below the case that rectification bridge damages or is the apparent mark that burn caustic on circuit board especially electrify, lest cause bigger loss. If above measures a result to show module is no problem basically, can observe with electrify. (The face plate after 1) electrify shows [F231] or [F002](MM3 transducer) , this kind of breakdown has two to plant commonly likelihood. Common is as a result of power source drive board has a problem, because give priority to,also having little share is accuse board cause, can change first advocate accuse board try, otherwise the problem is affirmative in power source drive board part. (The face plate after 2) electrify is not had show (MM4 transducer) , the indicator light below face plate [green light is not bright, huang Deng shows] quickly, commutate of specification of this kind of phenomenon and job of switch power source are basic and regular, the problem gives the some way in switch power source abnormal (rectification diode puncture or open a way, can measure the diode of a few commutate of switch power source with avometer, discover a problem very easily. Changed a relevant rectification diode question to be solved. This kind of problem is the compression on the low side of diode commonly, pulsatile concussion creates power source. (3) shows sometimes [F0022, f0001, a0501] is errant (MM4) , knock housing or move face plate and advocate board from time to time can be normal, attribute the problem that receives plug-in unit commonly, check looks up each place to receive plug-in unit. Because the block on circuit board allows element quality,also discovering individual machine is problem or solder undesirable be caused by. ([shows after 4) electrify-----] (MM4) , it is commonly advocate accuse board problem. One is changed below most circumstance advocate accuse board the problem was solved, because periphery controls circuit to strong report interference is caused,be commonly advocate accuse board certain component (be like post piece capacitance, resistor) attaint place comes, my analysis and advocate accuse board medicinal powder heat is bad to also have particular concern. But also specific issue goes out it is on power source board. For example: ? She wicks transducer of M440-200kW of ∕ of anxiety of bursa of Mei of  of  of で of  of cut down of Щ of the silent that multiply  , because laden inertia is bigger, start turn be apart from big, the frequency when equipment is started can rise to 5Hz left and right sides to also go up not to go again only, and call the police [F0001] . The client asks field service, I consider to think at that time: Regarding transducer as itself do not have a problem, the problem is client parameter the setting is undeserved, control fashion with vector, the parameter of electric machinery of again correct set / the model can solve a problem. Crossed client incoming telegram two days to tell me transducer is already bad again, breakdown seems electrify to show [now-----] . Classics spot checks an analysis, because give priority to,this kind of breakdown is accuse board give a problem to cause, because the user is in the process of installation,did not follow EMC standard strictly, strong weak report is bad without apart wiring, ground connection and did not use screen line, cause advocate accuse board I/O mouth by burn down. Later, I applied for to maintain a service, the engineer of SFAE goes spot maintenance, changed together advocate accuse board the problem was solved. (It is normal to show after 5) electrify, move to had shown namely stream. [Although F0001](MM4)[F002](MM3) carries for nothing same also, general this kind of phenomenon explains IGBT module damages or drive board has a problem, need to change IGBT module and the ability after microscope drive part again electrify, because the problem of drive board creates IGBT module,may damage again otherwise! The occurrence of this kind of problem, because,be commonly transducer for many times overload or wave motion of power source voltage are bigger (especially on the low side) make transducer pulsatile electric current is too big advocate accuse board CPU has not enough time to mirror and adopt safeguard place to cause. Still have a few special trouble (not common but have a few common senses, can draw inferences about other cases from one instance, the hope achieves the effect) of cast a brick to attract jade-offer a few commonplace remarks by way of introduction so that others may come up with valuable opinions, for example: (6) has a transducer (MM3-30KW) , in the process that using often " without reason " stop machine. Switching on the mobile phone again may be normal, the machine is taken after coming here, begin me to also did not discover the problem is in. Through longer observation, after discovering electrify advocate contactor is sucked close abnormal- - can drop report sometimes, frisk. Investigate breakdown matter, because switch power source comes out,as a result discovery is of contactor line bag all the way the leakage of electricity of filter wave capacitance of power source causes voltage on the low side, at this moment if on the high side of voltage of power supply source returns a problem not quite, if on the low side of power supply voltage can cause contactor,suck close to cause without reason to stop out of order machine. (7) still has a transducer (MM4-22KW) , it is normal that electrify shows, appear to moving signal [P----] or [-----] , through careful observation, the rotate speed that discovers fan is a little abnormal, unplug fan can show again [F0030] , call the police sometimes in the process of maintenance randommer, still had appeared [F0021F0001A0501] . Gave moving signal to receive fan again next first in me go up not to appear [P----] , but, when receiving a fan, the rotate speed of fan is normal, output three-phase is normal also, the rotate speed that the 2nd fan receives the fan when going up again is apparently abnormal. Then I analyse a problem to be on power source board. The result is switch power source come out all the way leakage of electricity of capacitance of wave of power supply filter causes, changed a same capacitance question to be solved. (8) the MM440 transducer that there is a 75kW in some steel ironworks, it is normal to move in the begining after installation is fine, the electric machinery after half many hour stops turn, but the locomotive signal of transducer was not lost,still be in however maintain, face plate shows [A0922] calls the police information (transducer does not have load) , measure transducer three-phase to output end without voltage. Change transducer hand stop, it is normal to move to reply again again. Normal when the output electric current that face plate shows is 40A-60A. Crossed same breakdown phenomenon more than 20 minutes to appear, at this moment the output electric current that face plate shows has 0 only.

6A left and right sides. Classics analysis judgement is the voltaic detecting element on drive board gave an issue, change the problem after drive board is solved. Sum up above, the scale that big former parts of an apparatus gives an issue like IGBT power module is not much, no less than is in what what Xi Menzi says in the characteristic of general transducer before me front, the problem of simple former parts of an apparatus because of a few low end and the breakdown scale that assemble a problem to cause are more, if have blueprint and part, these problems are solved not hard and cost is not high, it is not easy still to solve these problems otherwise. The simplest way changes whole line namely board! 3 last words: The design level of Xi Menzi transducer is the same as each brand transducer to be compared, the function is powerful, be spotless! The quality that the convenient sex that if can consider from the design again,maintains in the future improves a spare parts on production select material is most ideal. The compression of unit of commutate of Xi Menzi transducer is 1200V. If can use the rectification unit of compression 1600V, I think to be able to increase stability greatly and lower fault rate. The measure that defends interference remains to strengthen, because disturb a problem,Xi Menzi's transducer is met sometimes and advocate accuse board or I/O port was burned. In the process that shoulders technical support and maintenance in me, I feel only continuous study abounds his business technical ability, academic guidance is carried out, practice goes further rise for theory, draw inferences about other cases from one instance sums up experience ceaselessly, ability makes his each respect knowledge is strengthened ceaselessly, the pace that catchs up with the times science and technology of rapid development progresses. CNC Milling