I also remembered the "top speed" in the servo spec sheet is listed @ 3200rpm @ at a voltage constant of 90VDC. I have a 105VDC power supply.
That is an additional 16% voltage, which i have been told by a few industry professionals is a common practice to do.
If voltage and speed are a perfect linear relationship then that would mean i would have an extra 512RPM, giving me 3712rpm max.
What would my new servo max speed be if limited by my driver? I tried to do the math but it gives me a funky number in return.
I dont know what servos you actually have but the 80's vintage DC servos that were common on milling machines usually had voltage ratings of 160v but more often than not the power supply was around the 100v and then with the losses in the drives the actual voltage the motors got was 90v or so. Your motors should have a max voltage and current rating and I would not go over that.
One thing however is the problem you have at the moment is the drives limit on its step/dir input, so going faster would require you to reduce the resolution, this may or may not be a problem for you but something to think about.
Larry says-
"I don't recommend a 1X setting as the drive error is usually a few counts. 4X gives the same resolution as the Line count.
since 1000 line, and with quadrature they are 4000 counts per revolution,"
So even with 4x setting on, i am still getting 4000 counts per revolution or only 1000?
You are only getting resolution based on the 1000, Mach will put out 1 step and the drive will treat that as 4.
I personally am not a fan of electronic gearing and was why I was overjoyed when I got the Beta SS as it allowed me to get full potential from my drives. I have 2000 line encoders so thats 8000 per rev but as my drives can handle 2.5MHz input that is not a prblem, I am not even using a fifth of that.
Hood