Rob wrote: > > When I run my PC in windows and pull the plug, the UPS does not shutdown > after it's been on battery for more than 5 minutes nor does it > shutdown after power is restored, so I do not think there is a problem > with the UPS physically (bad UPS, battery, etc). > > However, I did notice that in windows, the default setting for the UPS > software was to shutdown 5 minutes after power had been removed. It's > possible that the UPS defaults to shut down after 5 minutes unless the > software configures it differently. That wouldn't explain why it is > shutting down after power has been restores though. I'm not even sure > the UPS is even making it that long in Linux but I admit I didn't time > it exactly. It could be exactly 5 minutes. > > It seems more likely that a condition may exist similar to what Peter > suggested, which is there is a signal the managing software should send > the UPS once power has been restored and/or to configure the settings.
Interesting. > One more difference to note that SHOULDN'T make a difference, but of > course could. The only NUT driver that works with this UPS is the > cpsups driver over a serial connection. The testing I did in windows > was done via a USB connection. The manual/website says that the serial > connection is for legacy machines and not all functionality is > supported, but I would hardly guess they meant the functionality I am > seeing. :) It is possible, however, that the USB and Serial protocols > are different or act differently. I'll try rebooting into windows when > I get the time and run a test with the serial connection. You could also try the other way around. There is a USB driver in NUT (the newhidups driver) that supports Cyberpower. You should use the latest NUT version from SVN because we made some changes to this driver recently. -- Peter > While I do > that, how would I snoop on the serial line to capture the traffic > between my PC and the UPS? > > Rob > > Michelle Dupuis wrote: > > If the Windows comment is accurate (i.e. does not happen under windows) then > > disregard this comment. Otherwise... > > > > We've seen a UPS with a new set of batteries, reporting full charge. Then > > when under load (upon power failure) the unit shuts off. The root cause was > > one of the 4 batteries in the unit was defective. Although it showed full > > voltage, it collapsed under load causing the UPS to turn off immediately. > > Replacing the battery solved the problem. > > > > MD > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Doug > > Reynolds > > Sent: Friday, September 15, 2006 5:27 PM > > To: Peter Selinger > > Cc: [email protected] > > Subject: Re: [Nut-upsuser] Shutdown after 5 minutes? > > > > Peter Selinger wrote: > >> After what's been said here, and the data that Rob sent, it seems that > >> the UPSs are faulty; I cannot think of any reason why they should yank > >> the power after 5 minutes, without any warning sign, and with brand > >> new batteries. Even stranger that it still does this when the power is > >> interrupted only briefly. It does not appear to be a driver problem, > >> as the situation still occurs even when no computer is attached at > >> all. > >> > >> On the other hand, did someone say that it does *not* do this under > >> Windows? That seems bizarre. Perhaps there is some proactive (and > >> doubtlessly top-secret) command by which the driver must tell the UPS > >> not to shut down? > >> > >> I would advise to stay away from this brand of UPS. > > thanks for the warning.. :) > > > > I've been needing to snoop on the com port when the windows program is > > running. It _doesn't_ appear to do it when it is being monitored with > > windows. _______________________________________________ Nut-upsuser mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/nut-upsuser
