[Nut-upsuser] Shutdown after 5 minutes?

[Doug Reynolds]

Peter Selinger wrote:
> Rob wrote:
>   
>> When I run my PC in windows and pull the plug, the UPS does not shutdown 
>>   after it's been on battery for more than 5 minutes nor does it 
>> shutdown after power is restored, so I do not think there is a problem 
>> with the UPS physically (bad UPS, battery, etc).
>>
>> However, I did notice that in windows, the default setting for the UPS 
>> software was to shutdown 5 minutes after power had been removed.  It's 
>> possible that the UPS defaults to shut down after 5 minutes unless the 
>> software configures it differently.  That wouldn't explain why it is 
>> shutting down after power has been restores though.  I'm not even sure 
>> the UPS is even making it that long in Linux but I admit I didn't time 
>> it exactly.  It could be exactly 5 minutes.
>>
>> It seems more likely that a condition may exist similar to what Peter 
>> suggested, which is there is a signal the managing software should send 
>> the UPS once power has been restored and/or to configure the settings.
>>     
>
> Interesting.
>  
>   
>> One more difference to note that SHOULDN'T make a difference, but of 
>> course could.  The only NUT driver that works with this UPS is the 
>> cpsups driver over a serial connection.  The testing I did in windows 
>> was done via a USB connection.  The manual/website says that the serial 
>> connection is for legacy machines and not all functionality is 
>> supported, but I would hardly guess they meant the functionality I am 
>> seeing. :)  It is possible, however, that the USB and Serial protocols 
>> are different or act differently.  I'll try rebooting into windows when 
>> I get the time and run a test with the serial connection. 
>>     
>
> You could also try the other way around. There is a USB driver in NUT
> (the newhidups driver) that supports Cyberpower. You should use the
> latest NUT version from SVN because we made some changes to this
> driver recently. -- Peter
>   
That driver is for a different model.  On the 1200 models we have, the 
newhidups driver tells me that the USB connection is a USB-Serial 
bridge..  Didn't look very hopeful for me..