[Nut-upsuser] Enhanced driver troubleshooting

[gene heskett]

On 4/24/23 13:12, Greg Troxel wrote:
> gene heskett <gheskett at shentel.net> writes:
> 
>> Jim, would an upgrade to the install on my rpi4b running a medium
>> sized 80+ yo lathe give me better control over a:
>> device.mfr: CPS
>> device.model: CP625HGa
>> device.type: ups
>> driver.name: usbhid-ups
>> driver.parameter.offdelay: 120
>> where that offdelay seems hard coded. The 625WA rating could run that
>> pi for t least an hour, but it chops it off in 2 minutes.
>> currently running 2.7.4 on raspios buster.
> 
> I think nut only works with lathes made after 1969 :-)
> 
> But seriously, a lot has been fixed/added since 2.7.4.
> 
> As I understand it, offdelay is about the time delta from telling the
> ups to shut down until it kills power, so the OS can sync disks.  I have
> a 90s UPS with a 10s delay and nut does not try to shut down until I get
> a lowbattery indication, so I get 30 minutes of runtime with graceful
> stop, vs maybe 40-something without nut to empty/hard-off.
> 
> Is your UPS shutting down without nut telling it to?

Yes. At 2 minutes it cuts everything off. It hasn't trashed a u-sd yet, 
but it is a possibility.

I went w/o a standby for a couple months last fall after the computer in 
a 20kw generac went out, found the phone at generac was no longer being 
answered so I changed the label on the pad to Kohler. Starts right up 
now. So outages here are 8 second events again.


Cheers, Gene Heskett.
-- 
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