[Nut-upsuser] Ellipse 750 USBS auto shutdown and NUT.

[Arnaud Quette]

Bonjour Frédéric,

sorry for the lag in answered, but I'm still a bit busy...

first, can you send me an "upsc" output.
second, have you configured nut using the MGE PSP, or made any exotic
configuration?

there is no reason for the UPS to launch the shutoff (UPS poweroff)
command without request, so either there is a shutdown timer, or maybe
a firmware bug.

2006/9/28, Frédéric POTTER <frederic at potter.fr>:
>
>
> Thanks jimmy for the hints, but I'm afraid the description of the problem I
> have was not clear.
>
>
> The problem I have is NOT a software configuration issue of NUT.
> The problem I have is that the UPS, when reaching battey.charge.low SHUTS
> DOWN ITSELF IMMEDIATELY, without sending anything to NUT over the serial
> port. Whatever would be my NUT configuration, it has no time to run, since
> the computer is shut down immediately.
>
> The UPS behaves exactely AS IF IT WAS NOT SUPPERVISED.
>
> My guess is that there is some logic within the USBS 750 that makes him
> decide, upon reaching the low battery state, to negociate with a software
> that suppervises him (over the USB or serial port) OR, if not suppervised by
> software, to shut down itself immediately to protect its battery.
>
> My guess is that this behavior is not properly working, and they may be two
> reasons
>     * OR the Ellipse has a firmware issue that makes him believe it is not
> suppervised when suppervised through the SERIAL port (and not the USB)
>     * OR NUT is not properly sending some commands to set some parameters to
> the UPS to make it enter the proper mode.
>
> Any hints from MGE people here ?
>
> thanks
>
> fred
>
>
> -----Message d'origine-----
> De : nut-upsuser-bounces at lists.alioth.debian.org
> [mailto:nut-upsuser-bounces at lists.alioth.debian.org] De la
> part de Frédéric POTTER
> Envoyé : mercredi 27 septembre 2006 08:28
> À : nut-upsuser at lists.alioth.debian.org
> Objet : [Nut-upsuser] Ellipse 750 USBS auto shutdown and NUT.
>
>
>
> Hello,
>
> I've installed & configured NUT 2.0.4 connected over a serial port to an MGE
> USBS 750.
>
> When the UPS enters the 'critical' state (ie, battery load below the defined
> battery.charge.low AND power input off), the UPS just shutdown itself
> instead of notifying NUT.
> When I say the UPS just shutdown, I mean it autonomously shut down itself
> within one second after reaching the low battery state (which is defaulted
> to 30%). When the power is restored, the UPS restarts properly.
>
> I was not able to find internal parameters within the UPS that would allow
> me to cancel this behavior (and have the usual behavior of the UPS sending
> an alarm to NUT and waiting to be shutdown by the "halt" script upsdrvctl
> shutdown command).
>
> My guess is that the UPS "knows" if it is connected to an host or not.
> Maybee in case of using the serial port this does not work ? (and the UPS
> thinks it is not suppervised ?) Maybee shall NUT send it some command at
> some point to notify this ?
>
> Any help appreciated.
>
> thanks
>
> fred

Arnaud Quette
-- 
Linux / Unix Expert - MGE UPS SYSTEMS - R&D Dpt
Network UPS Tools (NUT) Project Leader - http://www.networkupstools.org/
Debian Developer - http://people.debian.org/~aquette/
OpenSource Developer - http://arnaud.quette.free.fr/