> On Sep 10, 2015, at 10:36 AM, Peter C. Wallace <[email protected]> wrote: > Looks like you spindle simply cannot keep accurate speed control at the very > low speed you are turning (50 RPM?) I suspect if you really need accurate 50 > RPM speeds a VFD is not going to do it without a large gear reduction
Yes, the second plot I sent was at 100 rpm but still the case that the VFD is not ideal for low speed. I talked to Automation Direct when I was trying to get the spindle speed down low and they suggested that if I really want low speed control I need to go with a Vector Drive VFD. So perhaps this is as good as I am going to get at these speeds… Thanks, -Tom ------------------------------------------------------------------------------ Monitor Your Dynamic Infrastructure at Any Scale With Datadog! Get real-time metrics from all of your servers, apps and tools in one place. SourceForge users - Click here to start your Free Trial of Datadog now! http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
