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VPI SDS speed issue

I am having trouble with a consistent speed on my Aries 2 two pulley setup. I find I have to at times set the frequency to almost 66 to get it spot on. At other times it may be at 63. I read somewhere about the voltage preset may need adjusting. How is that done or is there something else I should be looking to adjust? The motor stas at 115, shifts to about 84after warm And then maysettle down to about 72 Hz. Any help?
drpat
wntrmute2's avatar
wntrmute2
188 posts
 
While I was sorting things out with my set-up I used grease that was too heavy, To trouble shoot, you can eliminate the step-down voltage drop quite easily. Try that and see if the speed remains constant. Then you can try the different drop down steps until the speed becomes unstable. For instance 72 volts is too low for 45 RPM but it works fine at 84V. Basically, I agree with Marc51 above on reading his post more closely.
mallen123
110 posts
 
How does one change the voltage on an sds?
Mine seems permanently set at 72 and only adjustable options are for frequency and changing speed from 33 to 45 rpm.
rodman99999
6,156 posts
 
MR M- Go here: ( http://vpiindustries.com/manuals.htm ) Right under the SDS Manual listing; you will see, "Calibration Mode for SDS." Either open or save that file, for the info you seek.
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