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Back-UPS Pro 550 - X9SCM-F - automatic reboot failure after power restore

APC UPS for Home and Office Forum

Schneider Electric support forum for our APC offers including Home Office UPS, Surge Protectors, UTS, software and services and associated products designed to share knowledge, installation, and configuration.

Solved
rhagu_apc
Crewman
Crewman
0 Likes
1
133

Back-UPS Pro 550 - X9SCM-F - automatic reboot failure after power restore

This was originally posted on APC forums on 12/8/2012


Hi,

I am running a small server on a Supermicro X9SCM-F mainboard, which allows automatic reboot after power failure. This works if the power supply is directly connected to the grid. When I put my APC Back-UPS Pro 550 between the server and the grid and remove any connection to the power main, my server will shut down properly after a certain threshold is met. Although I reestablish the APC - main grid connection and wait for the UPS to be fully loaded, the server will not automatically reboot. What am I missing?

With kind regards,

Markus


Accepted Solutions
rhagu_apc
Crewman
Crewman
0 Likes
0
132

Re: Back-UPS Pro 550 - X9SCM-F - automatic reboot failure after power restore

This was originally posted on APC forums on 12/8/2012


The next test I did:
I removed the power main cable and allowed the UPS to deplete completely, when I heard the beeping noises of total discharge I reconnected the UPS and my server would start automatically. This is an unwelcome behaviour due to two things:

1st:
A power failure may only last half an hour and therefore the UPS may not be completely depleted until the grid is back on, so no autostart mechanism on the server will be triggered.

2nd:
Rebooting the server right after the UPS is reconnected to the grid with empty batteries may lead to data loss if there is another power failure and the battery is not charged sufficiently to shut the server down properly.

Is there a way to "program" my UPS? I would like to allow power flow only when the batteries are sufficiently charged and to stop it entirely, as long as no power grid connection is established, the battery charge is beneath a specific threshold and the power draw of my server is beneath ~5 Watt (which is standby).

With kind regards,
Markus

See Answer In Context

1 Reply 1
rhagu_apc
Crewman
Crewman
0 Likes
0
133

Re: Back-UPS Pro 550 - X9SCM-F - automatic reboot failure after power restore

This was originally posted on APC forums on 12/8/2012


The next test I did:
I removed the power main cable and allowed the UPS to deplete completely, when I heard the beeping noises of total discharge I reconnected the UPS and my server would start automatically. This is an unwelcome behaviour due to two things:

1st:
A power failure may only last half an hour and therefore the UPS may not be completely depleted until the grid is back on, so no autostart mechanism on the server will be triggered.

2nd:
Rebooting the server right after the UPS is reconnected to the grid with empty batteries may lead to data loss if there is another power failure and the battery is not charged sufficiently to shut the server down properly.

Is there a way to "program" my UPS? I would like to allow power flow only when the batteries are sufficiently charged and to stop it entirely, as long as no power grid connection is established, the battery charge is beneath a specific threshold and the power draw of my server is beneath ~5 Watt (which is standby).

With kind regards,
Markus