Synology NAS DS1513+ automatic shutdown/turn on test connected to APC BR900GI UPS

The following video is the result of a test between the Synology NAS DS1513+ connected to a APC BR900GI UPS. Both devices brand new, the Synology was configured through DSM 4.3 - Control Panel - Hardware the following way:

General: - Power Recovery: Restart Automatically after a power failure.
UPS: Enable UPS Support (checked). Time before DiskStation enters safe mode (10 seconds). Shutdown UPS When system enters Safe Mode (checked).
Logically this 10 second configuration is for the sake of the test :)

As you can see for some reason the beginning works without any problem, when I re plug the UPS everything seems to start working again, but for some reason the NAS abruptly shuts down itself again without ever touching the power cable from the outlet.

UPDATE: I think I found why this error was happening. Maybe the self test of the UPS every time it starts up again was producing this to the Synology NAS. I tested a shutdown programmed after 10 minutes of power loss (instead of 10 seconds as I initially tested) and everything worked as expected. I will continue with my testing, anyways if anybody wants to share their point of view of the situation would be great! Thanks!

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Closed Caption:

ok so this is a test of the Scientology
es 1513 class here connected to APC UPS
deal during the shutdown test
so what I'm gonna do is I'm going to
black the main power from the UPS what
should happen is that the UPS will send
the signal that that doesn't have any
more power and I configured to
Scientology nasty shut down after 10
seconds so let's take the power out from
the UPS should start whining about it
exactly and let's see what's the
behavior of both devices it takes like a
minute for the technology and ass to
shut down after the 10 seconds
configured without outlet by power so
let's see what happens and it should
shut down the UPS to so let's see how it
behaves the two lights of the hard
drives are still on you can see the
shutdown process shoot should have
started already to see what happens
status light went off in the sino genus
yeah
I won't edit this video so it it's a
real-time test this no is showing its
working battery
it's taking awhile longer than a minute
i think let's see
ok
so the Scientology NASA's totally shut
down and the same for the UPS the FES
panel is out too so let's connect about
the power to see what happens
let's see now the power is on the UPS is
on the synology not start linking with
the the power button
let's see how it starts booting let's
see the UPS already detected that it has
power so it shouldn't bother anymore
let's see the same LG in there so much
it takes for it to put up again
I have a being minus T directly to the
mass configured now to check response
times still the hostages and reachable
so see how long it takes
its focus now on the same knowledge eNOS
ok happening now
the UPS just click I don't know why it
intern battery mode again for some
reason I didn't touch the power cable i
have pink but the UPS is again in about
three mode that I don't think it's
supposed to happen
see what happens
strange behavior tank
UPS is assuming again it's in
disconnected so this should work
I didn't touch the power cable again for
some reason is in battery mode can see
the lights land and the power is
blinking on the technology honest made a
beep and seems to be on till UPS is
complaining Asik didn't have any power
for some reason now everything is shut
down and now everything is on again so
clearly the nasty shut down properly
some of the second time for some reason
it turned on again and it shut it down
again afterwards so I don't know why
that happened would be interesting to
know the UPS is back again without doing
anything it has the sign that is
connected so this should work
I don't know why it into battery mode
and the nast
it's booting up i think the thing is
unreachable still
it's really strange
the thing is killing reachable
I think the dr should come up now pretty
soon I had been already so the network
is up
nothing else is happening with the mass
yet
see
the drives can seem to be up yet the web
interface is not up yet either
heart rates are still not on
I can hear them spinning yet so there
they are the same energy seems to be
online back again let's try to enter the
web interface
yeah i'm able to login but after my
login i can see a message saying that
the system be viewable the system bullet
for up from an improper shutdown so if i
go to the logs i see the system evidence
showing what happened but for some
reason
sure so this is what happened to make it
feat same screen this is what happened
exactly so that was connected to the UPS
UPS device connected to NASA Center in
the battery mode and moving down down to
up UPS connected to NASA's reached low
battery is a defined 10 seconds then not
experienced an improper shutdown then
UPS device connected to NASA's entered
by remote again and not experienced an
improper shutdown so this is two tests
in the end is a result of two tests the
previous one before starting with the
video and then the following that i just
described