Transducer is basic of parameter debug

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Transducer function parameter is very much, have commonly tens of even 100 parameter choose for the user. In applying actually, not necessary undertake install and be debugginged to each parameter, majority should be used only leave factory set is worth can. But because some parameter are mixed use a circumstance actually to have very in the relation, provide some mutual still correlation, because this wants,debug according to undertaking set is mixed actually. Because the name of parameter of function of each type transducer is abhorrent also, go to the lavatory to narrate, with Fuji transducer basic parameter name is called exemple. Because basic parameter is each type transducer,have almost can accomplish completely comprehend by analogy. One: Add slowdown time to quicken time frequency of dark output from 0 rise to place of the biggest frequency to need time, slowdown time is to point to drop to need time to 0 from the biggest frequency. Rise with frequency set signal normally / drop will increase slowdown time certainly. The ascendant rate that must limit frequency set when electromotor is quickened stops in case overvoltage. Accelerate time set requirement: Will quicken electric current limitation is changing father's younger brother implement over- voltaic capacity is the following, had not made flow and cause transducer tripping operation; Point of slowdown time set is: Prevent flowing circuit voltage too big, do not make second birth passes to press stall and make transducer tripping operation. Add slowdown time to be able to come out according to laden computation, but debugging middling to adopt by load and experience first set is longer increase slowdown time, through rising / observation of power cut motive has had not had electric current, overvoltage to call the police; Will add decelerate set time to shorten gradually next, call the police with happening in movement for the principle, duplicate an operation a few times, can decide truly optimal increase slowdown time. 2: Torsion promotion calls torsion compensation again, it is the torsion when the low speed that because place of resistor of electromotor stator winding is caused,is compensation is reduced, and the method that increases F/V of low frequency limits. Set is automatic when, the voltage when can making quicken promotes automatically start torsion in order to compensate, make electromotor quickens success. When if use a hand to move,be being compensated, according to load performance, start character ladenly especially, pass an experiment to be able to single out better curve. Turn to changing torsion is laden, if the choice is undeserved the output voltage when meeting occurrence low speed is exorbitant, and the phenomenon of wasteful electric energy, the electric current when returning meeting occurrence electromotor to take load to start even is big, and the phenomenon that does not go on rotate speed. 3: The electron heats up overload to protect this function to be setting of face of protective electromotor overheat, it is the temperature rise that the CPU inside transducer is worth according to locomotive electric current and frequency computation gives electromotor, undertake overheat is protected thereby. This function is applied to only " lug one " circumstance, and be in " lug is much " when, answer to add the relay that hold heat on renown stage electromotor. Electronic heat protects set to be worth (% ) =[electromotor is rated electric current (A) / transducer is rated output electric current (A) ] *100% ; 4: Frequency demarcate falls on transducer output frequency namely be restricted amplitude. Frequency limitation is be operated by accident to prevent or outside receive source of frequency set signal to give trouble, and exorbitant or those who cause output frequency is too low, damage in case the function of a kind of protection of equipment. Actual condition set is pressed in application can. This function still can make speed limit use, be like some leather belt conveyer, because carry stock not quite much, it is those who reduce machinery and leather belt to wear away, can introduce transducer drive, it is set of frequency of transducer upper limit some frequency value, can make leather belt conveyer moves in to secure so, on inferior working rate. 5: Slant place frequency some calls deviation frequency or frequency deviation set again. Its utility is when frequency by exterior imitate signal (voltage or electric current) when having set, can adjust the on any account that frequency outputs when lowest of frequency set signal with this function. Some transducer are when frequency set signal 0% when, deviation is worth but action is inside 0~FMAX limits, some transducer (like 3 cultivate) still can be opposite slant buy polarity has set. If be in,be when frequency set signal 0% when, transducer outputs frequency to not be 0%HZ, and for XHZ, will slant right now place frequency set can make for negative XHZ transducer outputs frequency to be 0HZ. 6: This function uses gain of frequency set signal only the ability when frequency of set of exterior imitate signal is effective. It is to use make up for the voltage inside voltage of exterior set signal and transducer (+ 10V) abhorrent problem: The choice of voltage of imitate set signal goes to the lavatory in the meantime, when set, when imitate input signal is the biggest when (like 10V, 5V, or 20MA) , beg a frequency percentage that can output F/V graph to have set for parameter with this can: When be 0~~5V like exterior set signal, if be gain signal set 200% can. 7: Torsion limitation can be divided for drive torsion limitation and torsion of apply the brake restrict 2 kinds. It is according to transducer output voltage and electric current are worth, classics CPU undertakes torsion is calculated, the concussion load when its can move to increasing decelerate and constant speed restores character to have marked improvement. Torsion restricts a function to be able to come true to be controlled automatically with decelerate quickly. When adding slowdown time to be less than laden inertia time suppose, also can make sure electromotor is mixed automatically quickly according to torsion set value decelerate. Drive torsion function offerred powerful starting torsion, when stable state runs, torsion function turns control electromotor poor, and turn electromotor torsion limitation in electromotor poor, and electromotor torsion limitation is inside value of the biggest set, when laden torsion increases suddenly, quickening time even when set is too short, also won't cause transducer tripping operation. Quickening time when set is too short, electromotor torsion also won't exceed value of the biggest set. Pairs drive torsion is big start advantageous, it is 80~~~100% in order to install relatively appropriate. Numerical value of set of torsion of apply the brake is less, power of its apply the brake is greater, suit to sum the situation of decelerate urgently, if numerical value of set of torsion of apply the brake has set plenary meeting,had appeared to press call the police phenomenon. It is like set of torsion of apply the brake 0% , can make be added advocate the gross of second birth plod of capacitor is adjacent at 0, make electromotor is when decelerate thereby, do not use resistor of apply the brake also can decelerate comes stop turn and won't tripping operation. But go up in some load, it is like set of torsion of apply the brake 0% when, brief idling phenomenon can appear when decelerate, cause transducer to start repeatedly, electric current fluctuates substantially, serious when can make transducer tripping operation, with respect to bring to sb's attention. 8: Add decelerate mode to choose to make add decelerate curve option again, general transducer is wired sex, nonlinear plant with S3 curve, choose linear curve mostly normally: Nonlinear the curve is applied to change torsion is laden, wait like fan; S curve applies to constant torsion load, its add decelerate change is relatively slow. Set Shi Kegen occupies laden torsion character, choose corresponding curve, but also have exception, when the author is debugging a boiler to bring the transducer of fan, will add decelerate curve first the choice is nonlinear curve, transducer of one starting movement with respect to tripping operation, adjust a change to make multi-parameter invalid fruit, hind after instead S curve normal. Investigate its reason is: Fan is brought to as a result of flue flue gas flows and turn by oneself before starting, and invert and become negative to load, chose S curve so, the frequency when making just started rises rate is slower, avoided the happening of transducer tripping operation thereby, this is the method that uses in the light of the transducer institute that did not start d.c.braking function. 9: Control of vector of torsion vector control is to be based on theoretic think: Asynchronous electromotor and dc motive have identical torsion to produce mechanism. Vector controls means to change is the field current that decomposes stator electric current the regulation and torsion ammeter, undertake controlling respectively, at the same time the stator electric current after will both synthesis outputs electromotor. Because this goes up from the principle attainable as same as dc motive control function. Use torsion vector to control a function, electromotor can output the biggest torsion below all sorts of moving conditions, especially electromotor runs region in low speed. Present transducer is used almost control without feedback vector, can mix according to load current size as a result of transducer phasic undertake torsion is compensated, make electromotor has very strong mechanical character, to majority the circumstance already can satisfy a requirement, the exterior setting rate that does not need transducer returns feed way. The set of this one function, can be in according to actual condition mix effectively one chooses in disabling can. The function that concerns to it is to turn poor compensation control, its action is the speed error that be fluctuated by load for compensation and causes, can add correspondence at load current turn poor frequency. This one function basically is used at deciding position control. 10: Energy-saving control fan, water pump is belonged to reduce torsion load, namely the fall as rotate speed, of laden torsion and rotate speed square is reduced into scale, and the transducer design that has energy-saving control function has special V/F pattern, this kind of mode is ameliorable the efficiency of electromotor and transducer, its can reduce transducer automatically to output voltage according to load current, achieve energy-saving goal thereby, can be according to particular case setting it is effectively effective or invalid. CNC Milling CNC Machining