Here is a total newbie question.
I am getting totally confused with the jargon surrounding motors.
1)The RC servo community seems to refer to servos as devices that can maintain a particular angle, but not capable of continuous rotation.
But i believe servos such as http://www.beckhoff.com/english.asp?drive_technology/default.htm
, are capable of continuous rotation. So what is a servo??
2)If i want to maintain very precise rpm control(make rpm change as i wish for example like a sine wave), would i use a servo or a DC motor?
3)If i want to maintain a precise angle and change the angle as i desire, would i use a servo?
4)What is the difference between a motor drive and a motor controller?
5)Can i convert a DC/AC motor to a servo using feedback control with pwm signals generated by the Arduino and a suitable motor controller and encoder.
3)Can i control the above Beckhoff servo using an Arduino? Do i need to buy the Drive from them?
Sorry for all the basic questions, but i can't seem to find an answer anywhere. The sales-reps just confuse me with more terminology.