John Morris wrote, On 9/21/2013 11:28 AM:
Hi list,
UPS is a Smart-UPS 3000 RM (SU3000RM3U, ups.firmware 92.11.D,
ups.mfr.date 12/14/99) with brand-new batteries. NUT is 2.6.5 running
on SL6 (RHEL6 clone) from EPEL packages. 'upsc' output pasted at bottom.
I'm not very familiar with UPSs in general or this model in particular,
and it's doing things I don't expect. I have done my homework, and read
UPS user manual, googled much, read most NUT manuals, read up to
'queequeg', asked on APC forums, etc.
The most distressing problem is the UPS stays OB after removing and
reapplying utility power. When power is removed, the UPS goes OB and
upsmon detects the power failure no problem, reporting
's0-ups0@localhost is on battery'. But when power is restored, there is
no clicking of contactors, no switch back to OL, and no detection by
upsmon that power is restored. The UPS can be manually put back OL with
'upscmd load.on'. I would expect the UPS go back OL automatically,
though; am I wrong about this? (APC forums folk are thus-far silent on
this question.)
Pull the batteries and unplug the UPS and press the buttons to fully
discharge the UPS. Disconnect the serial/computer interface connection.
Re-connect the batteries, plug into utility. Do not re-connect the
computer interface. Now that we have rebooted the UPS, see that it works
like it should.
There are other things I also think odd:
- The on-line LED flashes continually; other LEDs look normal; I think I
read the on-line LED flashes during a self-test initiated through the
'on/test' button.
- The 'on/test' button does not initiate a self-test, or otherwise
change the pattern of front-panel LEDs.
Normally you would press and hold until it beeps, then it will do a
manual self-test. That's if it was already turned on. Otherwise a quick
press should turn it on and do a self-test. The on-line LED does flash
during the self-test.
- While on utility power, the 'off' button acts as a momentary switch,
and the loads are powered down only as long as the button is being
pressed; also, 'upscmd -u admin -p $passwd s0-ups0 load.off' (twice, 5
secs apart) does not shut down the loads. While on battery power,
'upscmd [...] load.off' works as expected.
I think a quick press is all that's needed for it to turn off.
In your upsc output, I see 0 load. When the issues where happening, was
there a load present?
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