[Nut-upsuser] Low Battery event not occurring

Kamran Khan kamran at pssclabs.com
Fri May 13 22:45:52 UTC 2016

I here is some information I could have provided previously.  Here is what I am seeing:


Broadcast message from nut at localhost.localdomain (Fri May 13 22:31:35 2016):

UPS myups at localhost on battery
upsc myups at localhost
battery.charge: 3
battery.charge.low: 10
battery.charge.warning: 30
battery.runtime: 93
battery.temperature: 32.9
battery.type: PbAC
battery.voltage: 46.4
battery.voltage.nominal: 48.0
device.mfr: Tripp Lite
device.model: TRIPP LITE SMART2200RM2UN
device.serial: nunyabiznis
device.type: ups
driver.name: usbhid-ups
driver.parameter.pollfreq: 30
driver.parameter.pollinterval: 2
driver.parameter.port: auto
driver.version: 2.6.5
driver.version.data: TrippLite HID 0.8
driver.version.internal: 0.37
input.frequency: 0.0
input.transfer.high: 0.0
input.transfer.low: 0.0
input.transfer.reason: input voltage out of range
input.voltage: 0.0
input.voltage.nominal: 120
output.current: 2.00
output.frequency: 60.0
output.frequency.nominal: 60
output.voltage: 0.0
output.voltage.nominal: 120
ups.beeper.status: muted
ups.delay.shutdown: 20
ups.delay.start: 30
ups.load: 17
ups.mfr: Tripp Lite
ups.model: TRIPP LITE SMART2200RM2UN
ups.power: 0.0
ups.power.nominal: 2200
ups.productid: 3015
ups.serial: 2608CY0SM882500034
ups.status: OB DISCHRG
ups.timer.reboot: -1
ups.timer.shutdown: -1
ups.timer.start: -1
ups.vendorid: 09ae
ups.watchdog.status: 0

[root at localhost Downloads]# upsc myups at localhost ups.status

[root at localhost Downloads]#
Broadcast message from nut at localhost.localdomain (Fri May 13 22:34:35 2016):

UPS myups at localhost on line power

upsc myups at localhost ups.status

It won't provide a "LB" status.

Thanks again for the help.

Kamran Khan
HPC Software / Technical Engineer
From: Nut-upsuser <nut-upsuser-bounces+kamran=pssclabs.com at lists.alioth.debian.org> on behalf of Kamran Khan <kamran at pssclabs.com>
Sent: Friday, May 13, 2016 3:30:00 PM
To: nut-upsuser at lists.alioth.debian.org
Subject: [Nut-upsuser] Low Battery event not occurring

Hi Everyone,

New to the list.  Thanks in advance for any assistance you are able to provide.

I have a TrippLite SMART2200RM2UN UPS.  I have installed and configured NUT as instructed on the website, and am able to monitor the status of the UPS without much problem.  The only problem I am seeing is that I cannot get the machine to actually send a Low Battery ( LB ) signal.

When I run "upsc myups at localhost", the "battery.charge.low" is "10".  My current "battery.charge" is "6".  However, when I type "upsc myups at localhost ups.status", it only shows OB and DISCHRG, not LB.

If I understand the NUT process correctly, it looks for this LB status in order to create the POWERDOWNFLAG.  "In upsmon.conf, add a POWERDOWNFLAG directive with a filename. upsmon will create this file when the UPS needs to be powered off during a power failure when low battery is reached."

Please let me know if you need me to provide any further information.  Again, any help is greatly appreciated.


Kamran Khan
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