[Nut-upsuser] false low battery alarm

[Vieri]

Hi,

I have two types of UPS devices and one of them (APC) gave me a false "low battery" alert. I can't reproduce the problem... Also, there was nothing apparently wrong with the UPS at the time of the false alert. All I could do was grab the driver values within a minute after the "low battery" notification.

These are the values:

battery.runtime.low : 120
 
battery.voltage : 55.65
 
battery.voltage.nominal : 048
 
device.mfr : APC
 
device.model : SMART-UPS 5000 RM DL4
 
device.serial : CS0603110575
 
device.type : ups
 
driver.name : apcsmart
 
driver.parameter.pollinterval : 2
 
driver.parameter.port : /dev/UPS-1
 
driver.version : 2.6.3
 
driver.version.internal : 3.0
 
input.frequency : 50.00
 
input.quality : FF
 
input.sensitivity : H
 
input.transfer.high : 253
 
input.transfer.low : 196
 
input.transfer.reason : simulated power failure or UPS test 

input.voltage : 224.9
 
input.voltage.maximum : 224.9
 
input.voltage.minimum : 223.6
 
output.voltage : 224.9
 
output.voltage.nominal : 230
 
ups.delay.shutdown : 020
 
ups.delay.start : 000
 
ups.firmware : 112.1DL4.I
 
ups.id : UPS_IDEN
 
ups.load : 069.6
 
ups.mfr : APC
 
ups.mfr.date : 01/10/06
 
ups.model : SMART-UPS 5000 RM DL4
 
ups.serial : CS0603110575
 
ups.status : OL
 
ups.temperature : 027.4
 
ups.test.interval : 1209600
 
ups.test.result : NO 

The NUT version installed is 2.6.3 and I'm using a serial-to-USB hub (1 usb port and 4 serial ports). The brand is ATEN,

My upssched.conf contains:
AT LOWBATT INF-APC at 127.0.0.1 EXECUTE lowbatt-now-apc
and my upssched custom script notified me of the LOWBATT event.

My ups.conf contains:

[INF-APC]
        driver = apcsmart
        port = /dev/UPS-1
        desc = "UPS Monitor - ATEN port 2 - APC UPS"

If I were to update to nut 2.6.5 (I can't do it for now) would I solve this issue (ie. is it a known issue?)?

Thanks,

Vieri