Nut upsuser - Jul 2005 - Computer doesn't shutdown, only broadcasts a message to say low battery

Hi,

I have a Liebert Powersure Personal XT 700 and have followed the 
installation instructions from here 
http://www.networkupstools.org/doc/2.0.0/INSTALL.html. I'm pretty sure 
I've got the ups.conf, upsd.conf and ups.users correct. I have setup 
upsmon.conf as suggested in the installtion guide with the exception of 
FINALDELAY which I set to 0 when I found things weren't working correctly.

I have seen the hardware list and know my ups isn't listed so I'm not 
expecting great things.

What happens is when I yank the plug the UPS starts beeping correctly,
/usr/local/ups/bin/upsc myupsname@localhost ups.status gives OL. When 
the battery starts running out I get a message broadcast on all active 
terminals saying battery is low but the system doesn't shutdown. 
Wondering if I had `shutdown` and its associated files wrong I changed 
the SHUTDOWNCMD from `/sbin/shutdown -h +0` to `touch 
/tmp/should.be.shutting.down`, however this file isn't created after the 
broadcast message saying the battery is low. `/usr/local/ups/bin/upsc 
myupsname@localhost ups.status` gives "OL LB", when the battery is
low.

Is there a vital option I have not set, when firing up upsdrvctl, upsd 
and upsmon no errors are given.

thanks for any help,

Phil

Oh, by the way I'm running Slackware 10.1 with the 2.6.10 kernel from 
/testing. Though I think I'm almost there, perhaps its something to do 
with it thinking its got power when its not.

Hi,
> I have a Liebert Powersure Personal XT 700 and have followed the
> installation instructions from here
> ...
> I have seen the hardware list and know my ups isn't listed so I'm
not
> expecting great things.
>
> ...
> broadcast message saying the battery is low. `/usr/local/ups/bin/upsc
> myupsname@localhost ups.status` gives "OL LB", when the battery
is low.
this problem comes from the fact that your unit isn't
well supported.

To launch a shutdown, upsmon need to be instructed
first with an "OB" flag, and then an "OB LB".
Otherwise, if you have "OL LB", you might have rebooted,
and the system don't need to be shutdown as the power
is present... So we clearly can't shutdown upon "OL LB"...

So the only solution for you is to look at the driver you've used
(BTW, which one did you use?), and to adapt it to better handle
your UPS... As a temporary solution, you might have a look at
upssched to handle your situation, and shutdown upon "OL LB",
calling "upsmon -c fsd"

Arnaud
---
Linux / Unix Expert - MGE UPS SYSTEMS - R&D Dpt
OpenSource Developer - http://arnaud.quette.free.fr/
Debian Developer - http://people.debian.org/~aquette/
... and much more ...

Hi,

I have been looking through the documentation of my UPS, it seems that
the serial port has two modes of operation. One seems to be "smart"ish
mode and the other dumb mode.

The PIN configuration for the Serial Port is:

PIN	MODE	ASSIGNEMENT DESCRIPTION
1	1	Low Battery (Open collector)
2	3	TxD
3	3	RxD
4	1	Remote Shutdown (5-12V); on battery
5	Both	Common
6	1	Remote Shutdown (Short to PIN5); any mode operation
7	1	Low Battery (Open Emitter)
8	1	AC Fail (Open emitter)
9	1	AC Fail (Open collector)

The pins for mode 2 are used by the software that came with the UPS, and 
there is no documentation to say what signal means what from them.

I have studied the source for the Liebert driver and it seems that for 
the particular model the driver was designed for the UPS connects RX and 
TX on Line failure, so if I were to change the pins that the data is 
read from and written to from RX and TX, whatever pins they are to pins 
8 and 9 then driver should then correctly identify when the UPS has lost 
mains power?

I know a little C, though I haven't done serial programming at all but I 
am willing to learn and abviously I am not familiar with the nut code, I 
only downloaded and compiled the software yesterday! Could someone give 
me a few pointers on how to implement these changes. In liebert.c I 
can't find anywhere that sets what ports to read and write from.

Cheers

Phil