Hello,

 

I’m running version 6.12.10 and have a cyberpower CP1500PFCRM2U UPS. I use the baked in apcupsd client and have my unraid server set to shutdown at 30 percent battery life or 15 minutes of runtime, and then my UPS to shutdown after that. 
 

This worked flawlessly at some point in the past (unsure what version), but now during two recent outages the server successfully shut down, but the UPS did not. 
 

During the first outage the UPS LCD screen it said “59 minutes to shutdown” and at the same time it said “5 minutes of runtime remaining”. During the second outage I was actually watching the UPS as the unraid shutdown command was sent, and immediately the LCD changed to “60 minutes to shutdown” despite only a few minutes of runtime remaining on the UPS.

 

Does anyone have any idea what is going on here? I haven’t changed the firmware or anything on the UPS, and it used to work in the past. 
 

Thanks

Sounds ok to me.

If the UPS shuts down the attached devices like UNRAID, less power is consumed of course. So the "remaining" power lasts longer, much longer. And the UPS itself only shuts down when these remains are depleted too. Expected to happen in an hour.

 

But I do not understand why this is a problem?

 

Or, doesn't the UPS turn on the devices again if the power comes back during this waiting period (aka no restart of UNRAID) ? (That would be normal too, for safety reasons it stays off and just fills up the batteries again waiting for somebody to press the key)

 

18 hours ago, MAM59 said:

Sounds ok to me.

If the UPS shuts down the attached devices like UNRAID, less power is consumed of course. So the "remaining" power lasts longer, much longer. And the UPS itself only shuts down when these remains are depleted too. Expected to happen in an hour.

 

But I do not understand why this is a problem?

 

Or, doesn't the UPS turn on the devices again if the power comes back during this waiting period (aka no restart of UNRAID) ? (That would be normal too, for safety reasons it stays off and just fills up the batteries again waiting for somebody to press the key)

 

So my unraid server consumes a small fraction of the power used by other devices on the UPS, maybe 10 percent, so I don’t think 60 minutes to shutdown is from power savings. My UPS displayed “3 minutes of runtime” remaining while simultaneously showing 60 minutes until shutdown. The 3 minutes seems more likely accurate given the power draw and capacity of my UPS. It’s almost as if the shutdown command being sent to the UPS has an hour delay for some reason. 
 

The reason why I want my UPS to shut down is to 1) prevent draining the battery and shortening its lifespan and 2) prevent some other devices (router, switches, NVR) from constantly turning back on and off again in the event of many power loss events in a short period of time, as is common during storms in my region.