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?
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. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/>
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.nut-2.7.4 on the pi looks like it must have been from a gzip, so its not precious. So how about the rest of a git clone commandline for the latest? My pi can build it and keep it up to date then as it has a complete build system on it, builds its own pre-emt-realtime kernels AND linuxcnc.> > 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? > .Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/>