The application of state offer transducer on metallic engraving tool

1 transducer chooses a note: 1) when electric machinery of high speed of transducer drive engraving tool, because the reactance of high speed electric machinery is small, gao Cixie wave increases bring about value of output electric current to increase. Because this is used at the type selecting of the engraving tool transducer of high speed electric machinery, its capacity should be more than the type selecting of common electric machinery a bit. 2) if transducer is as further as distance of high speed electric machinery, should notice to adopt measure to restrain long cable the influence of right coupling capacitance, avoid engraving tool transducer to exert oneself insufficient, below such circumstances, capacity of engraving tool transducer should magnify first gear perhaps is in the output of engraving tool transducer carries installation to output reactor. 3) to a few special application situations, be like high temperature, gao Hai unplugs, meet those who cause engraving tool transducer fall right now look, capacity of engraving tool transducer wants enlarge to be blocked. 4) the installation environment that affirms engraving tool transducer: Temperature of A, job, interior of engraving tool transducer is the electronic component of high-power, be worked extremely easily the influence of temperature; In controlling box, transducer should be installed commonly in casing upside, abide by the installation requirement in product manual strictly, do not allow a calorific component absolutely or easy the bottom installation that calorific component relies on transducer closely. Temperature of B, environment. Temperature is too high and when temperature change is bigger, easy occurrence knot shows transducer interior phenomenon, its insulation property can be reduced greatly, cause short circuit accident possibly even. When necessary, desiccative and heater must add in box. C, caustic gas. If use environment is caustic aeriform chroma is big, the down-lead that can corrode yuan of parts of an apparatus not only, printed circuit board wait, and the ageing that still can quicken plastic parts of an apparatus, reduce insulation property. D, vibration and concussion. Ark of engraving tool control gets when mechanical vibration and concussion, can cause electric contact undesirable. 3.

Design of 2 transducer circuit reachs wiring note: 1) .

The distance of transducer and high speed electric machinery as far as possible short, in order to reduce the right electric capacity of cable, reduce the emission source of interference. 2) .

Control and dynamical cable choose screen cable to perhaps use screen of the canal that wear a line entirely to electric machinery from transducer. 3) .

Electric machinery cable should take a line at other cable independently, its are the smallest the distance is 500mm. Avoid parallel of electric machinery cable and other cable Sunday run to take a line at the same time, reduce transducer to output the electromagnetism interference that voltage changes quickly and generates. If control cable and across of power source cable, answer to make they press across of 90 degrees of horn as far as possible. The imitate quantity line that concerns with engraving tool transducer and advocate loop line takes a line apart, although be in control ark,also want such. 4) circuit devises a note: Will decide to whether need to add reactor according to the capacity size of engraving tool transducer, the action of reactor is the Gao Cixie wave that prevents transducer generation the input loop that carries power supply returns electrified wire netting to affect other equipment getting report thereby; Arrive when engraving tool transducer when the distance of electric machinery is further, should install output filter; The hand that controls loop to have labour frequency frequency conversion uses switch, so that be when frequency conversion occurrence breakdown can the hand moves the frequency that cut worker worker to move, because output end to cannot increase tension, so labour frequency and frequency conversion want lock having each other. 5) .

The ground connection of transducer, transducer is correct ground connection is to increase systematic stability, restrain the important step of noise ability. The Yue Xiaoyue of ground connection resistor of the earthing terminal of transducer is good, of ground connection lead sectional do not be less than 4mm, length does not exceed 5m. The ground connection of transducer should nod departure with the ground connection of power plant, cannot in all. The screen layer one aspect of the matter of line receives the ground connection of engraving tool transducer to carry, float of other one aspect of the matter is empty. Electric gas phase is connected between engraving tool transducer and control ark. Be based on above principle, after circumstance of thorough understanding client equipment, we chose the transducer that price of a tall sex compares for the client, its parameter is as follows: 4. Apply 4.

1, the functional requirement of engraving tool 1) control fashion: Multistage VF curve; 2) control commands a source: Terminal control; 3) frequency source is given for imitate quantity (controller outputs 0 ～ 10VDC) ; 4) quicken and slowdown time basis set of client oneself demand; 5) transducer prepares signal output; 6) restoration of fault signal output, breakdown; 4.

2, the performance demand of engraving tool 1) wave motion of the speed inside total rate limits is small. 2) low speed moment of force is large, can assure cutting of low rotate speed. 3) the time that increases decelerate as far as possible short. 4.

3, parameter setting defines V/F curve oneself (according to the spot actual condition set) the spot debugs remarks: 1) reduce intermediate frequency to reach appropriately increase intermediate voltage to all can increase moment of force, flow easily too otherwise call the police (intermediate frequency cost is fixed, adjust intermediate voltage 05-07 appropriately, observation transducer runs electricity) ; 2) easy OC-A/OC-C sheds transducer too call the police, reach electric machinery to give out heat easily: Slant because of installing intermediate voltage for V/F curve formerly big, reduce 05-07=40~45 appropriately; 3) moment of force of transducer low speed is insufficient: The reason installs the least tension for V/F curve or the voltage intermediate slants small, promote V/F intermediate voltage 05-07=55~60 appropriately; If low speed moment of force still is not worth, can install V/F 05-09=5~7 of the least tension; 4) transducer can look to run electricity actually through inspect of transducer face plate when equipment is debugged, judge equipment movement condition with this (if transducer running frequency fluctuates,bigger express parameter of transducer V/F curve to install wiring of main shaft of undeserved, report undesirable or insulation of itself of electric main shaft is bad) . 5. This system already was in the last word at present client place is used, client feedback is very good, major parameter is acquiesce in application, simplified to debug a process greatly. State offer transducer is in this model the time that the application on engraving tool reduced development of client system program to debug greatly. CNC Milling