Mariss,
Thank you for your fast and very educational reply. I appreciate the knowledge.
One question....On the Top Ten DC Servo Disadvantages you wrote, Requires "tuning" to stabilize feedback loop. Is this done in the drive or is this done in the encoder? and the safety circuits, are these in the drive or is this something I would have to buy seperately. Like your drives, are these items in your drives?
Okay, there was more than one question
Thanks Again,
Allen James