On Tue, 16 Sep 2008 10:36:51 -0500, Karl Townsend wrote:

I'm trying to reduce noise on my water bin dump water pump...

I installed a VFD this morning. Had to remove it immediately because the
pump motor got a new high pitch squeal. Anybody know why a VFD would do
that? More importantly, how could you stop it?

Karl

So, aside from the noise did it work better? In other words, are you
half way there?

--
Tim Wescott
Control systems and communications consulting
http://www.wescottdesign.com

Need to learn how to apply control theory in your embedded system?
"Applied Control Theory for Embedded Systems" by Tim Wescott
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