1、電氣維修方法經(jīng)驗談一自動化、企業(yè)信息化一中國工控網(wǎng)一技術(shù)中心 -工控論壇-中國工業(yè)控制自動化領域權(quán)威咨（experience of electrical maintenance methods 一一 automation, enterprise information 一 china industrial control network 一 technologycenter - industrialexperience of electrical maintenance methods - automation, enterprise information - china industria

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6、 treatmenthome forumpaper abstractdata center online tutorialscheme application overseasmaintenanceautomationprofessional bookstraining seminar prize essayexperience of electrical maintenance methodsauthor: wymym, 2007-8-8 23:05:00 published in: electrician forum, a total of 28 people reply, 764 cli

7、cks to add friends to view podcast, send messageshello everyone,do you have a good method of maintenance in peacetime, can you communicate with each other?german electrical drawings are designed very carefully, often a device needs a thick blueprint the drawings including plc, man-machine interface,

8、 governor (chain) control system, alarm system, safety circuit, electrical control cabinet wiring system, component location diagram, wiring diagram, cable location model etc in normal maintenance, often when the equipment failure, to go to the scene with what tools, including thick electrical drawi

9、ngsand, when you have a problem, you have to go over the drawingsso, is there a better way? for example, the complex mapping method is simple: coming flow chart of the whole drawing control logic is simplified into a few pages, lie in the direction of clear thinking, everything in good order and wel

10、l arranged at work, busy but not chaotic, purpose and pertinence, and can greatly improve the speed of solving problems you can speak freely, use the network platform, talk about the method of drawing, key points you generally take what means to quickly digest and absorb a thick electrical drawings,

11、 and in the equipment problems, in the first time will be able to solve the problem thank you for your participation!the following is the ，zelectrical maintenanee method experience7' reply:a total of 28 people responded to pagination: 1a little water: reference to friends send messages 2007-8-9

12、16:11:00german electrical drawings are well designedthere are index related pages on each electrical componentyjig: send a message 2007-8-9 16:40:00 for friendsno matter how complicated the equipment is, it should be understood in advance,the fault point is mostly the control loop is not normal, thi

13、s is the key to the drawing the safety lock circuit is german circuit design commonly used way to protect personal and equipment safety, can be described as a lot of brains however, these are often the fault of multiple factors, processing is very troublesome the only logical thinking to make clear

14、the control function out of the picture with a drawing part by entering the plc alarm can be displayed, if does not show up, can only rely on their usual conscientiously sum up, making the utility drawingsstar inflammation: reference to friends send messages 2007-8-10 22:18:00well, i just haven，t se

15、en the germans and thingsgrassroots maintenance workers: reference to friends send messages 2007-8-10 22:28:00the key is to take an electrical schematic diagram, or copy the electrical schematics, bookbinding in the electric cabinet wiring diagram ah, location diagram can not, along the line touch,

16、can not touch moreover, the domestic integrators in the field construction will mark the wrong line number or terminal number, along the line than looking for drawings to find insuraneewymym: send a message 2007-8-10 23:01:00 for friendsthank you very much for your participationin fact, i do not adv

17、ocate along the line touches the maintenance method of single loop control system is complex, or can, but often this ordeal, electric cabinet got out of order, once some line contact is not good, along the line one, line out, the original fault is not fixed, and increases the fault point new, waste

18、a lot of timethe correct way, even if you follow the line to touch, do not believe that the drawings are completely correct, you can organize their own correct and effective drawings ah. the best way is to control the process, through the understanding, finishing his drawing, and the original design

19、 drawings have no gap, find the gap is their progress, so that you can better understand the control principle drawing, memory is more profoundwymym: send a message 2007-8-10 23:13:00 for friendssome lines with a tie bar is very strong, really not open without the use of special tools such as diagon

20、al pliers, so instead of passive work, not as proactive, usually more familiar with the site, take the time to engage in the maintenance of finishing drawings, there is no shortcut, yang thousand days, one day, as far as possible in the shortest this is the time to recover, maintenance personnel sho

21、uld be achieved through the effortsthe only safe haven is cited as a friend sent a message: 2007-8-11 10:25:00theory of multiple accumulated points, theory guiding practice and practice verifying theoryyjig: send a message 2007-8-11 10:51:00 for friendsjust when entering, listen to others say, impor

22、t equipment is complex, not good repair when i really come into contact with the imported equipment, only to find, then no matter, circuit of imported equipment has a fairly standardized, orderly, clear, as long as you can understand a foreign language, all functions are clear in the drawings especi

23、ally the equipment, such as the "crown" forklift, once the fault according to the fault code prompt, manual control, troubleshooting, very easily without reservation, even how to use multimeter, scr how measurements in the specification will be clearly.however, a small japanese equipment,

24、is not so generous, in his description, only tell you how to judge if the fuse fuse is not bad, there is no play, let you and contact the manufacturer.halo: send a message 2007-8-11 21:58:00 for friendswe are like this, a blueprint is a system once, but the problem is only a small place, just a few

25、will be enough,eprom: send a message 2007-8-11 22:27:00 for friendsno matter how complex the original equipment is, if you know the process, you can cut it off and use your own control line to repeat it. as long as time is actingquote: mosquito dance fists buddy send message 2007-8-12 10:21:00experi

26、ence, plus the usual in all parts of the equipment as well as the basic knowledge, drawing master, is one of the most basic maintenance electrician should master the electrical maintenance work is to find fault, find out the problems quickly, also soon!bogut: reference for friends send message 2007-

27、8-12 21:48:00in fact, the best experience is familiar with the equipment, our company is germany ninety percent more than 100 sets of equipment, the equipment is ripe, you see over what are strong when nothing more than to go to the scene, understand the control mode, each part of the function of th

28、e equipmentdie veterans: citing friends sent messages 2007-8-12 22:34:00on weekdays xianlaiwushi look at many related books and drawings the maintenanee of equipment in base equipment maintenance experience, the former multi operator to understand the situation, like a doctor, look smel1. ask cutacc

29、ording to the key parts are indispensable, condition search, maintenance electrician work is actually to find fault, find out problems quickly too soon!dawn fish: add friends to send messages 2007-8-13 21:02:00i had maintenance of continuous casting machine (germany demag manufacturing company), the

30、 german speaking electrical drawings, design layout is very reasonable, clear, tight structure, strong coupling, contact symbol drawing clearswitches, buttons, contactors, relays used for contact points are clearly marked, inform in the drawings and location.1, first of all, you should understand th

31、e process of equipment maintenance, to learn to use operating equipment (easy to deal with the accident later, can correctly determine the fault point, reduce processing time)2, combined with the equipment process, to see the electrical drawings.3, the electrical drawings will be decomposed into two

32、 parts, the main circuit, control loop1) the main circuit is divided into protection circuit - signal feedback acquisition circuit contactor contactor closing and loop.2) the control circuit is divided into protection circuit manual or point action loop local operation or side operation loop loop au

33、tomatic control or linkage control loop (true to the strong electricity drawing).4 、 weak current diagram1) circuit components - power part - to the part logic part - signal feedback part - protection part - power amplifier drive part 5, plc drawingsanalysis of drawings with ladder diagramwymym: sen

34、d a message 2007-8-16 23:11:00 for friendsit，s a good thing to say. in the work of a lot of summary, each time maintenance, should be promptly recorded in the notebook, and then be arranged systematically summarized, especially for some electrical parameters to the original records for reference whe

35、n failure occurs when, by comparison, it is easy to find the point of failure; for days after they encounter similar problems to inspire, avoid take some detours in fact, judging faults is often more trouble than maintenance and takes time through the phenomenon, starting from the process operation,

36、 electrical operation, in accordance with the principle of easy, difficult, ideas active,the source of many failures is caused by abnormal power supply. remember in the maintenance of such a thing because the power is switched off, the equipment stops again the boot equipment does not boot up, every

37、 time you start to dc power supply device, siemens inverter always alarm f009, usually encountered many times, power off 2 minutes or so to fix this, not that fast melting dc power supply device in check, no problem! so toss for more than half an hour, there is no effect, check the input of three fa

38、st melting, the result of the problem is in this! ! the two melt has been blown out, so we can，t just handle it with experience the same fault phenomenon, the problem is often not the same, as long as combined with the actual situation,first easy and difficult, after the power load, good job summary

39、, do a good job in electrical maintenance work is not difficultmy qq:854853386, sincerely welcome everyone to add me, and to discuss with you about equipment maintenance issues, thank you!instrument industry: reference for friends send message 2007-8-17 12:48:00the line maintenance method does not a

40、dvocate, our unit has belgium, germany, switzerland, canada, japan and other countries of the equipment the equipment structure foreigners very strict and standard line terminal markings on the length of the line is clear, almost exactly, find the measurement of the position in the drawings is reall

41、y connected to the control cabinet for the same location on the map, the premise is to the familiar.often take a large maintenance novice drawings to the scene over and over a long time to find the corresponding fault point drawings (foreigners drawings are big and thick each component has a detaile

42、d description of the picture), is usually not cramming. although in the end also can be repaired but themaintenanee quality and speed will be greatly reduced.wymym: send a message 2007-8-18 21:10:00 for friendsin fact, the electrical drawings of imported equipment are often designed to be strictly p

43、rohibited, the direction of the line number, positioning is very accurate, but in the maintenance process, often due to a fault, the drawings turn over and turn out, very inconvenient at this time, you should tidy up a system function diagram, can be simple, can also be detailed. for example, the po

44、wer supply system, from the beginning to the end, to go through many pages of drawings, bring some interference to the maintenance of ideas; should sum up the whole power supply system, so clear, often can not use the general fault electrical drawings, thick, with only the power system function diag

45、ram sort can fix, other control loop can also be to do thisthere is another way. they usually do some anti accident exercises, such as a proximity switch fault of equipment and what will be the impact of what action will fail, once such a fault, (although not met), but usually have this preview, thi

46、nking, processing up often handy in particular, a higher degree of automation, the action frequency of large equipment is particularly important well, often handy.normally when the equipment is normal, it seems that we have nothing to do with maintenance, can really encounter electrical failure is o

47、ften very confused, i do not know where to start on the one hand, it relies on the accumulation of usual experience; on the other hand, it relies on the down-to-earth basic skills besides, there is no shortcut to go.wu xin: send a message 2007-8-18 21:37:00 for friendsi think the first is of course

48、familiar with the draw in gs, but actually you have to have a slightly enriched 1 control cabinet layout, there are some better 2 for the output control of important plc, you have to know what it is in control of the output unit address number is how many. 3 output points if you have plc many,it is

49、recommended that the program be used to display the switch sensor on the spot as the indicator light4 for the similar control circuit, such as the star delta start, there is a map band on ithe rocks: reference for friends send message 2007-8-26 16:44:00learnchenli: send a message 2007-8-31 9:41:00 for friendsinvaluable advice! learn!romantic city: quotes and friends send messages 2007-8-31 10:40:00learn!a total of 28 people responded to pagination: 1reply to this topic: put it