SMT1000I Auto Power Off and On

[DoorStop]

Very expensive door stop.

Cant get it to turn off automatically after 3 minutes of no ac input power and turn on again after ac power returns.

Ran setup via software but still doesnt turn off.

I can use and have to use powerchute to program as the front panel is very limited what it can do and is pretty much useless, time to turn off comes up as 36543 or some such number and can only count down so I'm supposed to hold the down button all day to get to 180 seconds? WT@

The computer its connected to can not run powerchute, the ups needs to turn off after 180 seconds and turn on again unattended and without commands or connection to pc.