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« on: April 01, 2014, 02:57:10 AM »
If your servo drives can accept Step/Dir signals then you can use Mach via the PoKeys to drive them.
The PoKeys however, if still the case, is only capable of a max pulserate of 25KHz. What that means is, for example, with a 1024ppr (4096 as Mach sees it) encoder then the max rpm of that motor would be 366 rpm, so if connected directly to a ballscrew of 5mm pitch the max velocity would be 1831mm/min (72 IPM).
As mentioned earlier many servo drives can utelise electronic gearing and thus it might be possible for you to get more velocity, this however reduces the resolution of the axes, as an example if you had 1:5 gearing your steps per unit would be 164 instead of 819 for the previous example.
Hood