[Nut-upsuser] How to change shutdown notification threshold on Fortron UPS Champs (blazer_usb)?

[Pavel Hofman]

Hi,

I am trying to configure the shutdown threshold for Fortron UPS Champs.

upsc reports:

Init SSL without certificate database
battery.charge: 100
battery.voltage: 55.20
battery.voltage.high: 52.00
battery.voltage.low: 41.60
battery.voltage.nominal: 48.0
device.mfr:
device.model: WPHVT2K0
device.type: ups
driver.name: blazer_usb
driver.parameter.pollinterval: 2
driver.parameter.port: /dev/hidraw2
driver.parameter.synchronous: no
driver.version: 2.7.4
driver.version.internal: 0.12
input.current.nominal: 8.0
input.frequency: 50.0
input.frequency.nominal: 50
input.voltage: 234.5
input.voltage.fault: 234.5
input.voltage.nominal: 230
output.voltage: 229.7
ups.beeper.status: enabled
ups.delay.shutdown: 30
ups.delay.start: 180
ups.firmware: 01060.07
ups.load: 46
ups.mfr:
ups.model: WPHVT2K0
ups.productid: 5161
ups.status: OL
ups.temperature: 26.3
ups.type: online
ups.vendorid: 0665


Please note there is no battery.charge.low, the battery.charge is 
provided by the blazer_usb driver 
https://networkupstools.org/docs/man/blazer_usb.html#_notes_for_the_previous_user_of_megatec_drivers

I tried to configure override.battery.charge.low for the device in 
ups.conf (after ignorelb), nothing reported in upsc.

I do not need any times, just being able to set  charge level or voltage 
level at which NUTS will issue the shutdown command to my servers 
connected to the UPS a communicating with the nuts-server (their 
shutdown takes a while). I could not find any info how to do that apart 
of 
https://github.com/networkupstools/nut/issues/561#issuecomment-398791357 
which did not work for me (no battery.charge.low info appeared in upcs 
after this setting and reloading all nuts-related daemons (server, 
client, monitor), nothing found in the logs.

Thank you very much for any help or hints.

Best regards,

Pavel.