31 Jan
2002
31 Jan
'02
10:12 p.m.
----- Original Message -----
From: "Gunther Schadow" <gunther(a)aurora.regenstrief.org>
To: <classiccmp(a)classiccmp.org>
Sent: Thursday, January 31, 2002 08:39 PM
Subject: Anything special about converting VAX 11/780 to single phase?
Hi,
just to be sure, I would simply put all three phases on the
same single phase. Are there any problems with that? The
VAX 6000 is much pickier, but the VAX 11 and everything
having the simple power distribution box should be fine,
right?
Probably not. I don't have a VAX 11/780 handy to check, but that would only
work if the beast was strictly 120 volt with three circuits used internally,
and the feeders up until the circuits were split apart would be overloaded,
carrying three times their designed current.
How many pins are on the plug? Not counting the ground (usually the round
one in the center) there should be three or four. If four, it might be like
the VAX 6k-- with careful examination you may be able to tie two legs
together safely. If there are only three pins, it's strictly three phase--
time to look into a phase converter!
HTH
thanks,
-Gunther
Bob
--
Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org
Medical Information Scientist Regenstrief Institute for Health Care
Adjunct Assistant Professor Indiana University School of Medicine
tel:1(317)630-7960 http://aurora.regenstrief.org