I would like to solicit some feedback re: the
battery.runtime.lowconfiguration settings through NUT. I was able to set
the value using the 'upsrw' command but when I did a 'upsc' the
configuration seems incorrect. Please see below for details. Thank you
OS name and version:
Description: Debian GNU/Linux 12 (bookworm)
Release: 12
Codename: bookworm
exact NUT version:
Version: 2.8.0-7
NUT installation method:
apt install nut
exact device name and related information:
https://www.cyberpowersystems.com/product/ups/battery-backup/cst150uc/
device.model: CST150UC
driver.version: 2.8.0
driver.version.data: CyberPower HID 0.6
driver.version.internal: 0.47
driver.version.usb: libusb-1.0.26 (API: 0x1000109)
ups.vendorid: 0764
supported UPS variables (default values PRIOR to configuration change
attempt)
upsrw CST150UC
[battery.charge.low]
Remaining battery level when UPS switches to LB (percent)
Type: STRING
Maximum length: 10
Value: 10
[battery.runtime.low]
Remaining battery runtime when UPS switches to LB (seconds)
Type: STRING
Maximum length: 10
Value: 300
[ups.delay.shutdown]
Interval to wait after shutdown with delay command (seconds)
Type: STRING
Maximum length: 10
Value: 20
[ups.delay.start]
Interval to wait before (re)starting the load (seconds)
Type: STRING
Maximum length: 10
Value: 30
set UPS variables (system will shutdown when 60 minutes of runtime is left)
upsrw -s battery.runtime.low=3600 -w CST150UC@localhost
SUCCESS
upsc CST150UC@localhost
battery.charge: 100
battery.charge.low: 10
battery.charge.warning: 20
battery.mfr.date: CPS
battery.runtime: 5125
battery.runtime.low: 16
battery.type: PbAcid
battery.voltage: 25.8
battery.voltage.nominal: 24
device.mfr: CPS
device.model: CST150UC
device.serial:
device.type: ups
driver.name: usbhid-ups
driver.parameter.offdelay: 60
driver.parameter.pollfreq: 30
driver.parameter.pollinterval: 2
driver.parameter.port: auto
driver.parameter.synchronous: auto
driver.version: 2.8.0
driver.version.data: CyberPower HID 0.6
driver.version.internal: 0.47
driver.version.usb: libusb-1.0.26 (API: 0x1000109)
input.voltage: 122.0
input.voltage.nominal: 120
output.voltage: 122.0
ups.beeper.status: disabled
ups.delay.shutdown: 60
ups.delay.start: -1
ups.load: 10
ups.mfr: CPS
ups.model: CST150UC
ups.productid: 0601
ups.realpower.nominal: 900
ups.serial:
ups.status: OL
ups.test.result: No test initiated
ups.timer.shutdown: -60
ups.timer.start: -60
ups.vendorid: 0764
The value changed to battery.runtime.low: 16, instead of 3600. I don't
understand why, because executing the command resulted in SUCCESS.
In comparison executing (never powers on the load, even when main power
returns)
upsrw -s ups.delay.start=-1 -w CST150UC@localhost
resulted in the correct value being set.
I hope someone will be able to provide some guidance. : )
Thank you
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