Hem's sake, JST. This is about a specific servo motor.
If you won't recognize that Jraef knows whereof he speaks, wyncha look up the characteristics of the particular beast in question - AND the Yaskawa Servopack drive for it - before you add any more ignorance or irrelevance to the pile.
Bill
What's with that?
We were talking about "in general' PM motor capability..... I commented that it's becoming more common, and his comment was "not in low cost drives".....
My last comment was that there are more PM motors, and I expect drives will soon follow with more having PM capability... I think that because likely people won't want as many non-PM capable drives as PM motors invade common usages. That really depends on how the magnet issues shake out....
As for a SPECIFIC servo motor, and a SPECIFIC drive matched to it, that's a different matter, and if you want to get out of the servo motor all it can do, you want the drive that goes with it..... that was designed as a system with it.... And, if you have that drive, you want that motor, ditto.... In some cases you may HAVE TO have it.
As for programming..... it's true..... the drive company that I am associated with (we have an agreement with the US distributors) has essentially identical drives which are specific for applications due to PROGRAMMING..... yes, there may be some differences in sensors within the drive, of course, but not a lot, actually. The PM capable drives are virtually the same as the non-PM capable other than programming.
As for the servo, it is a PM machine, and therefore can be operated as a PM machine if the drive can handle the voltage range and current, and is PM capable. It won't do all it's tricks, but it will spin and be controllable, in most cases. There are some motors that are so specialized that they just are not much use outside their application, and without their specific drive.
That is a long way from suggesting that "any" drive can be just willy-nilly substituted for the designed-as-a-system drive matched to the servo for the application.....
You may have noticed that I wasn't very positive even on using a servo in place of a regular motor..... That subject has probably been thrashed sufficiently in this thread.