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APC PowerChute disable UPS turn off

Posted on 2009-07-13
Medium Priority
Last Modified: 2013-12-11
Is there a way to configure PowerChute not to turn off the UPS after OS shutdown? I have things connected to the UPS that I'd like keep running until the batteries are dead.

APC PowerChute Business Edition Basic v7.0.5
Question by:jsuttor
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LVL 70

Expert Comment

ID: 24849936
No, but you MAY be able to accomplish what you want by simply uninstalling PowerChute.    If this is a supported model UPS (Most APC units are), the UPS service in XP or Vista will recognize the presence of the UPS and will automatically take whatever actions you have set for "running on battery" ==> which can include shutting down the PC.      

The UPS isn't shutting down by itself -- PowerChute sends a command that causes that to happen after a specified interval (usually 2 minutes) ... and then shuts down the PC.      I'm reasonably sure (but do not know for certain) that the UPS service will not send a shutdown command to the UPS.

So just uninstall PowerChute,  change your power management settings to shut down on low-battery level, and change the low-battery threshold to a high number (50%, 60% or so).

To test it ... just unplug the UPS and wait for the PC to shut down -- I suspect the UPS will remain powered up aftewards with no problem.
LVL 70

Expert Comment

ID: 24850003
... actually, as I think about it, you MAY be able to do what you want with PowerChute.

I no longer have any systems running Powerchute, so I can't check this -- but as I recall there's a setting for "shutdown time" in Powerchute.     This is basically "how long does it take your system to shut down" ==> and is the delay that PowerChute uses for shutting down the UPS.    It sends a shutdown command to the UPS based on this delay ... and then shuts down the PC.

I'm not sure what the maximum time you can set for that value is -- but take a look at it.    If you can make it LONG (e.g. 60 minutes), then that may effectively do what you want.    I'm just not sure how long a delay it will let you set ==> there MAY even be a "don't shut the UPS down" option in that setting.

Author Comment

ID: 24851137
I can't find any setting that will prevent it from shutting down, you can't change the shutdown time past the estimated battery runtime or it whines every 60 seconds, "Insufficient runtime". The reason I want to stay with powerchute is that I run the CMD file which shuts down multiple computers..
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LVL 70

Expert Comment

ID: 24851277
In that case there's nothing you can do to alter the behavior.     I'd simply use a 2nd inexpensive UPS unit to power those non-computer items that you want to retain power ==> you'll likely get much longer runtimes anyway, since there won't be any PC loads on the UPS.

Author Comment

ID: 24852289
Well here is what APC told me:

When you log into the software, if you double click on the UPS in the console, it will bring up the information for the UPS. Then click on "Shutdown" and then "Shutdown Type" and choose "Shutdown" instead of "Shutdown and Off"

However in the help the description for the settings doesn't mention the UPS, only computers:

Use the radio buttons to choose to Shut Down (the default), Shut Down and Off, or Hibernate. Both the Shut Down options shut down your operating system. Shut Down and Off also turns off your computer. The computer does not turn on again automatically when the UPS resumes the supply of power.

I guess it's time for trial an error.
LVL 70

Accepted Solution

garycase earned 1000 total points
ID: 24852539
I would think "Shut Down" would do exactly what you want, based on their description.

As for the computer coming back on -- boot to the BIOS and check the power options available.   Many systems allow you to set what the PC does when power is applied -- the default is usually "Stay Off";  but other common options are "Last State" (i.e. if power was lost without a soft shutdown it will turn back on -- this is NOT what you want); and "Turn On" (this is what you want).       If you set the PC to always turn on when power is applied; then when the UPS resumes power the PC will boot up.      This is how I have my systems set, and it works perfectly.

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