interruptedz

thanks pal, i also thought about it that way at first because im a "theory" guy, i know the term servo control means something about feedback and master slave thing.but the industry blurred it so much to make me confuse sometimes Well, newly graduated engineers here in philippines usually overwhelmed with math and theory but lacks applications.so here goes this site for us to learn.but if you have questions regarding control engineering and the maths, im glad to answer. just dont ask about screws and bolts check this site, it controls both "servo motor" and ac induction motor http://www.ssddrives.com/usa/Products/AC890/AC890.php credits to the poster from another site

thats not quite accurate sir, as far as i know, servomotor usually has permanent magnet (i have never encounter a servomotor without permanent magnet)and ac motor doesnt have any.dc motor has magnet(if i remember it right) but usually servomotor works in ac provided by an amplifier.thats why usually to check wheter a servomotor is good or not is to short two power leads(this is not powered) and rotate the motor(by hand) if it has resistance(i.e. stiff to rotate) then the servomotor is said to be ok.you cant do that in induction(ac squirell cage) motor. the ac squirell cage motor we talking about here is the one you usually start with softstarters or wye-delta starters or inverters.

im a lil confused about the difference between servo motor and ac squirell cage induction motor. they both have encoders.and i i saw applications in positioning that both uses servo and ac motor in a same application. whats the difference in the theoretical sense and application wise.

i've been programming the german way since out of college.and tried other japanese plcs.all i can say is german style of programming is easy to debug and organize.and some parts of the code are reusable to other projects.you just have to make it global.it uses subroutine,just like in c++. The only thing i hate abt them is expensive.