[Nut-upsuser] Eaton 3S550

Kris Jordan nut.kj at sagebrushnetworks.com
Thu Oct 11 06:00:07 UTC 2012

Windows 7 Pro x64
Eaton 3S550 (brand new, battery mfg 8/15/2012)
NUT 2.6.5-3

ups.status: OL CHRG

CHRG was present even though it has been plugged in a few days turned on 
and battery.charge was 100%.

Log includes me running upsc and removing power long enough to see that 
battery.charge will decrease.

This UPS doesn't have controlled outlets despite what the upsc output says.


I've come across an undocumented feature on this UPS. Holding down the 
power button when the UPS is off seems to put it into some kind of 
config mode. If it's a sensitivity adjustment, NUT is not reporting it.

It says it does a self-test when turned on, but it doesn't appear to be 
going on-battery. I'm used to APC UPS's where holding down the button 
does a self-test, so that's why I stumbled onto that.

Now I don't know what I might have changed. Tomorrow I'll go see what 
Eaton software I should DL and try that, unless someone enlightens me 
before I get to that.


I had to reinstall to get a proper usb_device.inf. Is there an easier 
way to regenerate that file when dealing with multiple UPS types on a 
test system?


I noticed that NUT doesn't provide a way to update the battery date on 
UPS's which I've been able to previously with other software. I assume 
the bad battery warning is unaffected by this parameter?

-------------- next part --------------
A non-text attachment was scrubbed...
Name: Eaton 3S550.7z
Type: application/octet-stream
Size: 14075 bytes
Desc: not available
URL: <http://lists.alioth.debian.org/pipermail/nut-upsuser/attachments/20121010/81b03fb0/attachment-0001.obj>

More information about the Nut-upsuser mailing list