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Controlling Sorensen/Ametek XG 60-25 1500 W DC supply system using LabVIEW

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Hi,

I am using USB to control DC supply system (Sorensen/Ametek XG 60-25 1500 W). I am trying to get discrete (sampled) sine wave in the DC output of supply system. I have attached the program I have built. I have built it for 23.5*2=45 samples per cycle and it is working as I configured, but the problem is it takes almost 4.5 seconds to change one value of output voltage to another value of output voltage in the output of DC supply system. And so for to complete one cycle it takes 4.5*45=202.5 seconds. This is terribly longer that what I want to have. I also asked DC supply system company to know the response time of DC supply system, and they said it is like 0.3 seconds, but my program takes almost 4.5 seconds. So I think that this has to do with the program I built using LabVIEW. Can you people go through my program and find what is wrong with it? If you can provide another program with the same purpose that also would be really helpful. 

Thanks! Appreciated!


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