Hi guys,

I have been researching a controller upgrade for my mill (Novakon Pulsar) for a pretty long while, and I have a question regarding servos and controllers. It seems that there are several different controller options out there that handle servos differently - some still send step/dir information to the servo drivers which close the loop internally, some can send analog outputs to drives and receive the encoder input in the controller, and some are in between. I apologize that this question is a bit vague, but when selecting a controller for servos, is there a performance increase for closing the loop in the controller vs the drive? And does a controller that sends step/dir vs analog basically negate the advantages of using servos? My goal is to choose a controller that will get the best performance out of the servos.

Thanks for your advice!

Micah