[Nut-upsuser] Will MGE-UPS Ellipse USBS auto shutdown?

[Peter Selinger]

Ben,

Not all UPS hardward and not all drivers support ondelay/offdelay.  In
any case, you should let your system shutdown script kill the UPS, at
the very end, after all the disks have been mounted read-only, and
just before the system is normally halted. This will turn off your
computer safely. -- Peter

Jonathan Dion wrote:
> 
> Sorry, it seems I readed a little to quickly the first mail.
> 
> As Daniel told, the ups should shutoff after the computer, so there is
> no way to use another mechanism (or not simple way).
> 
> A were a little off subject in my precedent mail, but perhaps not as
> much as I first thought ^_^
> 
> As you set the ondelay and the offdelay to the same value, when the
> count reach 0 the UPS will receive the order to shutdown AND to power
> on. Don't know what will happen. Perhaps the second order come just
> after the first and "erase" it.
> 
> Try to put ondelay twice greater than offdelay
> 
> On 8/13/06, Jonathan Dion <dion.jonathan at gmail.com> wrote:
> > Hi
> >
> > On 8/12/06, Daniel O'Connor <doconnor at gsoft.com.au> wrote:
> > > On Saturday 12 August 2006 21:21, Ben wrote:
> > > > I guessed this meant that if I removed power, the system would
> > > > shutdown when the battery hit 30% (which it did) and the UPS would
> > > > power down 300 seconds after it reached 30% - (which it didn't, it
> > > > just stayed on and kept beeping every 10 secs).
> > > >
> > > > I thought setting 'offdelay' would get me out of having to use
> > > > 'upsdrvctl shutdown' - but it doesn't seem to be working. Is there any
> > > > other way to avoid using this command?
> > >
> > > No.. How do you expect the UPS to know when to turn off if the computer
> > > doesn't tell it? The delay stuff is there to give the system time to finish
> > > shutting down after it has told the UPS to power off. (As well as ensuring it
> > > does power cycle the load if the AC comes back before the UPS is off)
> > >
> > > --
> >
> > It don't work this way. Correct me if I am wrong, but I think I
> > remember it work this way :
> >
> > ondelay and off delay are sort of timers. When you set them, they
> > _both_ start decrementing. So the ups will shutdown itself after
> > offdelay second, and when the power is restored, the UPS will go up
> > after (ondelay - offdelay) second. So be sure to set ondealy greater
> > than offdelay !
> >
> > In your case, to do what you want, you'll have to set ondelay two time
> > greater than offdelay.
> >
> > What I don't know is if the UPS start counting ondealy again just
> > after power restoration or after it reach the low battery value. You
> > can test it easilly. In the first case, be sure to set a ondelay value
> > sufficient enough to let the UPS the time to charge.
> >
> > Cheer,
> >
> > Jonathan
> >
> 
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