I must be a complete dumbass whose google-fu expired yesterday ...
Have Powerchute network shutdown installed on servers attached to the UPS, communication with the UPS is established, shutdown time set currently for 3 minutes on battery.
Where I'm getting lost is in the UPS shutdown/outlet group configuration. If there's a document describing the proper setup for this, I haven't found it. I know I have to set the power on to automatic in server IDRAC, where I'm getting lost is what the appropriate values are for UPS turn-off, outlet group settings, etc.
Where we are, if it's off for 3 minutes, it's gonna be hours ... but I just can't find anything that talks about the proper settings for the UPS itself to put the rest of the puzzle together. Obviously I need the outlets to turn off so the server will power back on when AC comes back, but...