On 03/13/2016 11:45 PM, Danny Miller wrote: > There should be a "P" and "N" terminal. THAT is the connection for the > external braking resistor on your Huanyang. > > BTW, another point- I have seen (but not worked with) a "DC brake" > feature on both my X200 and your Huanyang. > > I believe that's because regen braking becomes much less effective at > low RPM. It injects a DC current on the winding which causes > considerable additional drag on the core at low RPM. But, like I say, I > haven't tried it out. There are warnings about overheating the > spindle's poles if the current is specified too high or for too long. > > Right, both of my VFDs switch to DC braking at about 10% frequency setting, and that switchover point is an adjustable parameter.
Jon ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
