Transducer of 1336IMPACT of automation of Luoke Wei Er is in the application in Lian Zhu machine of 4# board base

Overview board base connects casting machine technology and photograph of machine of traditional Lian Zhu to compare, pull high with its fast, the advantage of expensive work rate, high quality, be in in last few years home be able to rapidder development. Base of our country board uses even casting machine only then at 20 centuries 90 time, in board base the machine that connect casting controls a domain to pass old practice summary to give a lot of successful experience. Working procedure of the line before board base of Lai steel 4# connects casting machine is production of H profiled bar, the crop of product of profiled bar of H of working procedure of the line after the crop of its product and quality concern directly and quality. 4# board base connects the crystallizer vibration of casting machine and electromotor of drive of the machine that pull correct to use system of communication frequency control. Vibration of crystallizer of machine of Lian Zhu of combinative 4# board base and the craft of the machine that pull correct are characteristic, choose the high-powered, 1336IMPACT transducer that exceeds low noise. 2.

1336IMPACT transducer character connects vibration of casting machine crystallizer device and the main body equipment that the machine that pull correct is the machine that connect casting, demand of transmission control level is high, the manufacturing operation that also is machine of immediate impact Lian Zhu is led and produce character to measure. Perfect increasingly as what exchange frequency conversion technology, device of vibration of crystallizer of the machine that connect casting and technology of frequency conversion of application of the machine that pull correct already were a kind of inevitable trend. Because 1336IMPACT transducer has tall property, exceed the character such as low noise, the already affirmed distinctive capacity that has the magnetic field that dominates electromotor independently apart and torsion, make 1336IMPACT transducer is in 0 fast when still can produce full torsion. Photograph comparing has its and general transducer characteristic: ① uses FORCE technology, FORCE technology pays close attention to control result centrally (namely torsion control, magnetic flux control) , carry parameter to undertake controlling to electromotor input, in order to get this result. Motive of ② resembling dc is same, can control the torsion of AC motor and magnetic flux independently. ③ can control torsion directly inside safe timing scope, include to exceed the hour of rated job rotate speed. ④ need not count complex electromotor maths model, can control the torsion of electromotor and magnetic flux accurately. Because pound the starting torsion with laden or big need to wait for what apply and cause to take off,⑤ decreased smash state. In order to improve speed and torsion performance. ⑥ obtains patent voltaic adjuster, can realize the real control of torsion. The driver with handy ⑦ can assure to be started quickly, use the parameter apace on electromotor nameplate to make calm speed and torsion ring oneself. The magnetic field that ⑧ does not have coder is directional control. ⑨ uses SCANport agreement, offer unified port for process designing equipment. Controller of fine tuning of process of the buy inside ⑩ . 1336IMPACT transducer is to simplify to install and be operated design. But the character that it still has more complex transducer. Fast electromotor makes calm move, let handlers input simple electromotor parameter step by step through menu. And the others place needs parameter to be able to be inputted automatically. Do not need to input complex electromotor data information so. But the simulator of configuration, the number measures the control way with all sorts of communication module, let an user have multiple choice. Used the 1336IMPACT transducer of FORCE technology, provided certain requirement very tall pull the exact electromotor rate that uses applied place to need and torsion control, and normally these applied majority use dc governor aptly only, FORCE technology is the magnetic field that A-B wins patent directional control method, the already affirmed distinctive capacity that has the magnetic field that dominates electromotor independently apart and torsion, make 1336IMPACT transducer is in 0 fast when still can produce full torsion. FORCE technology, use systematic design to procrastinate custom-builtly originally, can come true inside the box that uses easily alone, compactly, simply in now. 1336IMPACT transducer uses FORCE technology magnetic field technology of directional control patent, the flux that can control AC motor independently and torsion electric current will realize accurate torsion and power control, FORCE technology used patent model, broadband voltaic adjuster technology, add from applicable controller, can have depart and control to the flux of electromotor and torsion, the vector that this is FORCE technology and other controls essential distinction of the technology. Can acquire the outstanding control property of the speed of AC motor and torsion. FORCE technology is to make AC motor is obtained truly " similar dc timing " the world of function's most advanced frequency conversion technology. Of FORCE technology without encode feedback controls a technology, make scope of AC motor timing rises 120: 1. Speed / the improvement of torsion function, make transducer application range wider. Have the big torsion that start, consequently can applicable it is by dc motive pilot uses an occasion normally. 3.

Crystallizer vibration and the control system that the machine that pull correct controls systematic board base to join casting machine are formed by PLC of series of PLC-5 of 4 AB company (board base is even casting machine 3 stream, every casting flows to implement manufacturing process automation by a PLC-5, public facilities is controlled by a PLC-5) , introduce DH-485 data link, its have following functions: ① is supportable the mutual join of 32 equipment; Function of much lead plane; Your card (TOKEN) transfer visit control: Uninterrupted the function that can increase or deletes link node: The biggest length of link is link of data of DH-485 of ② of 　 of 　 of 4000 feet of 　 with " chrysanthemum catenary " every PLC join goes to formal general each link lotus root close implement, repass link lotus root closes implement with process designing the station is contacted, control system link joins following plan institute show pattern. 3.

1 crystallizer vibration controls the crystallizer vibration that the system forms by transducer to communicate timing system, have two kinds of mode of operation, it is in work station begin moves an operation, 2 be by PLC full automatic operation.

On the work station of control room implementation hand is moved, automatic choice, the oscillatory frequency that oscillatory device can realize on work station when the hand is moved (electromotor speed) the hand is moved give, what electromotor can control on box is control to rise beside the aircraft that operates platform stop. This kind of means is the overhaul, setting when debugging equipment, and the machine that connect casting is produced normally is to choose automatic way, stop and right now oscillatory electromotor rises automatic as what help correct aircraft stop, the oscillatory frequency of crystallizer is according to pulling correct machine rate linear changes, its line sexual relationship has the craft that connect casting to give. 3.

The control system of the 2 machine that pull correct pulls correct machine to control a system to basically loading those who help correct aircraft to send bring ingot, start, pull speed of base, inactive to adjust, pull correct one, of 2 roller press next mixing to raise a function, its operate authority to be on the work station of control room, choice hand moves the point that can achieve the machine that pull correct only to move an operation, the machine that pull correct with be beforehand on transducer the speed of set is worth up or downward slow fast move. And when automata, PLC basis the craft parameter of set, implementation helps correct aircraft sending rated rotate speed reachs quickly quickly when bringing ingot move, the set-point of PLC comes from in basis of transducer of the whole process that play base, those who achieve rate is self-adjusting, give parameter value in order to assure what rate moves in craft to its play base to go up, what produce even casting the course with this implementation is full automatic control. 4.

The set that imposes decelerate parameter pulls correct machine and crystallizer vibration is to unite kind of requirement to be started quickly, if the value of Tqg cannot satisfy the requirement of the speed that start greatly too, increase MD with respect to need, this asks to increase the size of electromotor namely, the capacity of transducer also also should increase accordingly, if slowdown time shortens, should be in transducer is exterior component of configuration regenerative braking, make systematic performance/price ratio drops. Of reason system the important parameter that increasing slowdown time is a system. 4.

The acceleration of the 1 set transducer that quickens time time is the frequency that points to a system from the 0 time that rise to 50Hz place need, it is electromotor namely from 0 fast the time that rises to rated rotate speed, electromotor from 0 fast the time Tqg that lifts place of working rate Ng needs presses type calculates: Tqg=GD2ng/375 (MD-Mj) in 　 type: MD, the acceleration of electromotor pitching moment, the value is taken to be when computation (1.

2 ～ 1.

3) Me, what Me is electromotor is rated turn be apart from Mj of; 　 　 , laden static block turns be apart from; Go to Tqg convert from 0 fast the Tqg/ng of × of Tqe=ned of 　 of time Tqe 　 that rises Neq of rated rotate speed the flexible starting time of 　 transducer should set must compare calculative Tqe some longer, if set must compare Tqe weak point, because of,often meet inside pass electricity and stop to move. 4.

Time of slowdown of set of 2 slowdown time also is to show the frequency of electromotor changes to arrive from 50Hz 0 fast time, namely dynamoelectric come by rated rotate speed the time of 0 rotate speed, electromotor falls from Ng of working rotate speed to 0 fast time can have consideration leaving type: Tzg=GD2ng/375 (MZ+Mj) in 　 type: MZ, the moment of force of apply the brake of electromotor, take when computation (0.

2 ～ 0.

3) Me; Go to Tzg convert to fall from Ned of rated rotate speed the set of time of soft apply the brake to 　 transducer of Tzg/ng of × of Tze=ned of 　 of 　 of Tze of 0 fast time should compare Tze some longer, otherwise overvoltage of easy occurrence d.c.braking and tripping operation. 5.

The interference rejection of transducer uses PWM inversion circuit as a result of transducer, make output is contained taller tall second harmonic, extremely easy interference controls circuit to work, easy happening electromotor is creeping, the speed that play base is flabby, affect the product quality of casting base directly. 5.

Source of interference of 1 main electromagnetism and interference of generation of system of way frequency control must have 3 requirements: Disturb source, interference to get interference equipment passageway, easily. Cent of ① interference source is mixed for interior exterior. Interior basically is the decision such as device principle and product quality. Exterior and main decide by use condition and environmental element, if loop of dc of working power source suffers switch operation and weather to affect the surge tension that wait and causes, strong electric field or strong magnetic field and electromagnetic wave radiate. ② interference passageway has conduct coupling, communal impedance coupling and electromagnetism coupling 3 kinds. Exterior and main the electromagnetism coupling that passes distributinging capacitance passes interior; Interior all has 3 kinds. Of the sensing element that ③ introduces as a result of equipment choose and structural composition endless and reasonable, cause ability of itself interference rejection to differ, try to restrain to interference, reduce its scope, reduce its force, this is try to improve from external environment. The structure to electronic equipment and in-house the improvement that the layout of yuan of parts of an apparatus has optimizing the design is from electronic equipment interior antagonism disturbs function. (1) electromagnetism of source of main electromagnetism interference is annoyed, call electromagnetism interference (EMI) , it is with exterior noise and useless signal the electromagnetism that causes in receive is annoyed, the conduction with the road and travel with the form of field. The rectification bridge of transducer is nonlinear to electrified wire netting laden, harmonic of generation of electron, electric to the other of same electrified wire netting equipment disturbs the harmonic that it produces. Additionally the inverter of transducer uses PWM technology mostly, should work at switch mode and when making high speed switch, produce noise of many coupling sex. Because this transducer is opposite,source of one electromagnetism interference is for the electron of the other inside the system, electric equipment. On the other hand, the harmonic in electrified wire netting disturbs the power supply source that basically carries transducer to disturb transducer. Be like,many harmonic source exists in electrified wire netting all sorts of rectification equipment, hand in voltage of dc exchange equipment, electron to adjust equipment, nonlinear load and lighting equipment. These bear make the voltage in electrified wire netting, electric current produces undee distortion, generate the interference of the harm to equipment of the other in electrified wire netting thereby. The Rebujia after the power supply source of transducer is come from the interference of the alternating current net that is polluted is handled, noise of electrified wire netting can disturb transducer through circuit of power source of electrified wire netting. The interference of power supply source basically has ① to be pressed too to transducer, owe pressure, instantaneous drops report; ② surge, decline; Pulse of ③ aiguille voltage; ④ radio frequency is disturbed. Next, in all the regular job that the model disturbs the control line that passes transducer to also can disturb transducer. (2) the way transducer that electromagnetism disturbs can produce the harmonic with greater power, because power is greater, stronger to sex of interference of systematic other equipment, it is consistent that its jam way and track of general electromagnetism interference, main component is conducted, coupling of electromagnetism radiate, induction. Specific for: ? Qian of male of У of Qi of violet discuss calamity imprints? of  of Europe of stitch the sole to the upper of  of  of Fu of uncut jade of ⒌ Jin  is opposite next the noise of electromotor generation electromagnetism of direct drive, make bad news of electric machinery iron and cupreous cost raise; and conducted interference arrives power source, give; of systematic other equipment final transducer through matching sth resembling a net of electrified wire netting to conduct produce inductive coupling to the other circuitry of photograph adjacent, the induction gives interference voltage or electric current. Same, the interference signal inside the system disturbs the regular job of transducer through same way. 5.

The 2 measure that fight electromagnetism interference occupy the fundamental of electromagnetism sex, form electromagnetism to disturb (EMI) must have 3 element: ?  of low field N is happy south instrument of Xi of Pa of fan of gull of stitch the sole to the upper of predestined relationship of fourth ⒍ of hold tight of huge rock of fan of gull of stitch the sole to the upper of ⒌ of the plinth other fan of gull of stitch the sole to the upper fan of dirty of  of cloth of  of school of pigheaded F of fan of dirty of  of press and smooth of leg of lotus root of fan of dirty of  of Mei Bu of take along sth to sb of Buddhist templeput on the brakes of  of dirty fan ox washing with watercolors is climbed! . ? ) the segregation that keeps apart alleged interference, it is to point to keep apart interference source and the share that get interference easily from circuit come, make they do not produce electric connection. In system of frequency control transmission, it is power source and amplifier circuit normally between lest,segregation transformer is used on power supply cord conducted interference, power source keeps apart transformer applicable noise to keep apart transformer. Increase the space between circuit getting trouble, parts of an apparatus or device and interference source, it is the measure of a kind of effective that reduces interference, because disturb the square with the distance to become inverse ratio, the distance increases one times interference to be reduced fourfold, accordingly, of parts of an apparatus of consideration of careful and perfect ground or equipment decorate reach wiring, increase interference source and the space between circuit getting trouble as far as possible, the transmission that reduces interference greatly, reduce systematic fault rate. When installing wiring actually, should be opposite by its of the sensitivity of interference or the size classify that press its itself power undertake handling, the order that arrange is: Signal of low n imitate, average number signal, communicate control equipment, dc uses power plant, communication power plant. Decorate according to such order make its are separated each other, maintain certain distance, but ask sometimes between equipment, certain distance maintains between all sorts of wiring of device, below the circumstance that in installation the circumstance is asked by limitation, equipment volume is minor, this kind of requirement often gets very hard satisfaction. Accordingly, still need to consider other measure. ① makes all line are isolated from well, make its impossible leakage of electricity, such, because contact the interference that introduce,prevent; ② keeps apart the line of different sort laid (in chamfer of not same cable, or separate with clapboard) , we can differ according to signal the type presses his the ability that fights noise interference to be divided into a few etc. ③ imitate measures signal (modular person, feel, especially the modular person signal of low n is like thermocouple signal, thermal resistance signal) it is very poor to the interference rejection ability of high frequency pulse signal. Suggest with screen double skeining thread joins, and these line must take up electrical wiring is in charge of alone or cable chamfer, cannot be in charge of in same cable with other signal (or groove) in take a line. The switch signal of ④ low n (dry and hard of a few condition nods signal) , data communication circuitry (RS232, EIA485) , plant than going up to the interference rejection ability of the pulse signal of low frequency signal is ambitious, but the proposal had better use screen double skeining thread (use double skeining thread at least) join. This kind of signal also should take a line alone, cannot be together with dynamical line and big laden line parallel takes a line. ⑤ tall n (or big electric current) the input output that switch measures, CATV, line, and other relay inputs output signal, the interference rejection ability of this kind of signal strong at above two kinds, but these signal can disturb other signal, because this suggests to join with double skeining thread, also walk along cable canal or cable chamfer alone. Move AC220V of line of force, 380V, and line of the breaker that understands ability greatly, switch, the cable choice of these lines basically is not to depend on interference rejection ability, decide by voltaic load and compression grade however. Above explains, same the likelihood puts kind of signal in canal of a cable or chamfer, if close sort signal must take a line in same cable chamfer, must separate them with metallic clapboard. Still having a kind of segregation is be the same as signal source transducer to be kept apart in electric and aspirant travel, such, can big earth is reduced in all the harm that modular interference controls a system to cause to frequency conversion. Use segregation amplifier to keep apart the input terminal of signal and transducer part completely (segregation transformer is used in some systems, or the means segregation such as relay, to switch the quantity can use photoelectricity parts of an apparatus, or relay undertakes keeping apart) . (2) yuan of parts of an apparatus or some of some circuit in screen electron equipment are medium electric current sheds outdated, the space will build magnetic field all round its; In the meantime, the charge that place of circuit some part stores, it is all round its build magnetic field; Of electric energy and magnetic field change quickly each other will form electromagnetism interference, this kind of electric field and magnetic field, will tell to equipment itself belong to inside unripe interference, reduced the allowance fighting faze of equipment. Serious when can make equipment often malfunctions. When undertaking soldering like electric welder again, when investment of high frequency heating furnace moves, and of the large facility that use phone rise suddenly stop wait to will generate interference to automation unit, interference is born outside these belonging to. Inside the dimensional range that sets in some for the electric field that will produce or magnetic field limitation, or to make equipment or yuan the effect that parts of an apparatus does not suffer exterior electromagnetism field, often adopt segregation screen measure, its method is to will concern circuit, yuan parts of an apparatus, or low resistance material waits in copper, aluminium or equipment is installed is magnetic material inside the screen thing that makes, do not make electric field and magnetic field penetrable these screen content. Screen uses metallic conductor namely, by the component of screen, combine, line, line wraps inclose. This kind of method restrains the effect to noise of capacitance sex coupling very good. The commonnest is to use signal of simulation of link of screen double skeining thread. The electric screen that above says, but fall in a lot of circumstances, signal is disturbed besides noise getting report beyond, basically still be handed in by force change the influence of magnetic field, be like a power station, smeltery is heavy-duty the machinery plant, so, we besides should consider electric screen beyond, consider magnetism screen even, consider can good with the permeability such as iron, nickel conductor to have screen namely. Using double skeining thread to replace two parallel lead is the efficient way that controls magnetic field interference. The principle is the magnetic flux that the meeting in every small ring that wring button changes through handing in, and these metabolic magnetic flux can be in the conductor all round generation electromotive force, it connects inductive law to decide by electromagnetism, photograph adjacent winds the electromotive force way that produces on same conductor in button annulus contrary, mutual and quits, this removes better inhibition to electromagnetism interference. Screen interference source is the most effective method that restrains interference. Normally transducer itself uses iron carapace screen, do not let its electromagnetism disturb leak; to output a line to had better use steel tube screen, when controlling transducer with exterior signal especially, requirement line as far as possible short (it is 20m less than commonly) , and line uses double core screen, reach control line with the input of main circuit and output line (AC220V) complete depart, can put within same tubing or line chamfer anything but, all round the electron is sensitive equipment line also asks screen. To make screen effective, screen is overspread must reliable ground connection. (3) when the demand of filter wave interference rejection capacity when the system is higher, to reduce the interference to power source, in power source input end can add filter of outfit power source. Input the harmonic electric current of side to restrain transducer, improve power element, outfit communication reactor can be added in transducer input end, the distortion level that chooses what can inspect power source transformer and transducer capacity to match circumstance and electrified wire netting to allow and calm, use usually had better. Export electricity to improve transducer, reduce electric machinery noise, outfit communication reactor can be added in transducer output end. The action that sets filter in systematic circuitry is to restrain interference signal to arrive through conducted interference of power supply cord from transducer power source from electromotor. To reduce electromagnetism noise and loss, in transducer output side can install output filter; to be opposite to decrease electrical interference, side can be inputted to install input filter in transducer. If there is sensitive electron facility in circuit, lest,filter of power source noise can be installed on power supply cord conducted interference. (4) the action of ground connection ground connection generalizes always rise to have two kinds only: Guardian and device are not damaged kill; Restrain interference; Restrain interference ground connection to call the job ground connection again in some books, and former make protect ground connection again. ① protects ground connection. Protecting ground connection is in controlling frequency conversion the system at ordinary times not electrified metal part (machine ark crust, work station crust) with nice electric link is formed between the ground, in order to protect equipment and person security. The power supply that the reason is system of frequency conversion control is strong report power supply, normally the housing below the circumstance is not electrified, happen when breakdown (like breakdown of lead plane power source or other breakdown) when the short circuit of electric metal component such as the line of power supply look that creates power source and crust, these metallic components or crust formed electrical body, if do not have very good ground connection, there is very tall voltage between this electrical body and ground so, if the person does not take care to touch these electrical body, can form access through person so, generation is dangerous. Accordingly, must join the intercrop of metallic crust and ground very well, make housing and ground equipotential. In addition, protective ground connection still can prevent electrostatic accumulation. All equipment of system of frequency conversion control all have land of a protection, this protection is commonly when machine ark and treatment of other equipment design already interiorly has been received, the protective land that ground interiorly already protected this to take a line with power source in some systems (the intermediate head of 3 core outlet) be together repeatedly, some does not allow to will protect the ground to be linked together with this line, the user must read the ground contact that manufacturer provides carefully to install a manual, no matter which are planted means, CG must an equipment (control station, operator station) on the CG of all peripheral or system is together repeatedly, the CG that stands each with wider insulation copper lead next is together repeatedly, be linked together with system of earth ground connection from finally. Returning those who a bit is worth to remind is, all peripheral of transducer must supply the power supply on electrical wiring from, and do not allow from other loop power supply, may burn out otherwise interface even equipment, long term to must be being used connective circumstance, or provide power supply with wider lead, or adopt communication to keep apart measure. ② job ground connection. Working ground connection is to make frequency conversion controls system and the appearance that are linked together to it to all can move to assure the ground contact that measure and control precision and establishs reliably. Its cent is a machine logically, signal loop ground connection, screen ground connection, there still is this installing in petrifaction and system of other explosion proof ground connection. The ground contact that wiring of system of control of all frequency conversion involves uses means of a bit ground connection, on this, also have a lot of controversy. Some manufacturer systems offer a few ground: Logically, screen ground (call imitate the ground again) , signal ground, protection ground parts respective ground connection, and major system points out all sorts of ground to part in machine cabinet him interior ground connection, collect at a bit, use thicker conductor next (copper) collect each place sign to rise, receive body of ground connection of a common to go up. A few does here have to need to notice: Itself of system of frequency conversion control is comprised by much stage equipment, besides control station, still include a lot of peripheral, and peripheral is more than also, this involved much stage equipment, the problem of a variety of ground connection. In addition, the power supply of general transducer is each station (control stands, operation station) with special a route is independent power supply, namely between each other not mutual power supply. Imitate ground (AG) , imitate ground (call screen the ground again) it is a the demand in all ground connection is top kind. Almost all systems put forward AG a bit ground connection, and ground connection resistor is less than one ohm. In transducer is designed and be being made, found a place for in machine cabinet interior AG converge platoon or other establishment. The user receives screen line AG converge platoon to go up respectively when wiring, in machine ark bottom, use the cupreous plait of insulation to connect to a bit, the cupreous plait that nods the converge of each machine ark reoccupy insulation next or copper connect ground connection to nod with radiation shape. Most transducer asks, not only AG of each machine ark is right ＜ of terrestrial electricity block 1 ohm, and the resistor between each machine ark also wants 1 ohm of ＜ . Signal ground, the processing of signal ground: In principle does not allow to change each send implement be in spot termination ground with the sensor of other, and should lose its end to handle a bit ground connection in transducer terminal. But in some circumstances, the spot is carried must ground connection, at this moment, the input terminal that must note former signal (on double end) the ground wire that must not control a system with frequency conversion absolutely has any electric link, and when system of frequency conversion control is processing this kind of signal, significant segregation measure must be adopted in front. Measure of above interference rejection can ask to come according to systematic interference rejection logical choice is used. If control unit is contained to wait like personal computer in the system, still must take interference rejection step on software. CNC Milling CNC Machining