On Wed, 28 Sep 2005 03:14:00 GMT, the renowned xray
wrote:
On Tue, 27 Sep 2005 17:34:14 -0400, Spehro Pefhany
wrote:
On Tue, 27 Sep 2005 21:12:25 GMT, the renowned xray
wrote:
On Wed, 28 Sep 2005 08:33:56 +1200, Terry Given
wrote:
we then ripped it apart, and found the DC bus cap was about the same
size as my little finger. what the ?! buried deep in the manual was a
requirement to replace it every *year*
Makes one wonder WTF they were thinking (or not thinking.)
VFDs, like industrial temperature controls, are an insanely cutthroat
business.
Best regards,
Spehro Pefhany
Scary -- being a cost-consious buyer who is about to shop for one.
Always planned to buy one, but started this thread because I wanted to
know what is in them.
If I get one, should I immediately crack it open and see if it should be
repopulated with better parts?
;-) I guess that's one approach. Or get a heavier duty one to begin
with. Watch the derating factors for single-phase power input and
temperature.
Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers:
http://www.speff.com