Question about APC Smart-UPS 1000VA UPS System

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There is a blackout,the computer remains on but no display

There is a power failure,the ups supports the computer system, but there is no display at all on the screen.The L.E.D that shows machine is receiving power is on,the power supply is running but the screen is blank.

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  • khiel Mar 06, 2009

    what if the computer have power but the monitor have no display???.. what is the problem?? can you help me sir??... thax you

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  • 192 Answers

You might not have it in a ups power back up plug.

Posted on Jan 08, 2009

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Invertomatic victron imv ups


Malfunction of input circuit: voltage delivered is too low. The batteries may
be faulty or depleted. Wait for a few hours, leave the UPS switched on

If absence of input power (utility failure, maintenance work) is expected to last longer than a few hours, switch
off the UPS to save battery power. If the UPS input power is absent for several days and the UPS remains on
under no-load conditions, the batteries can be discharged very deeply, resulting in a short battery life time

Apr 22, 2014 | UPS Battery Backup Systems

1 Answer

How many desktops support on 1kV ups


Depends on the size of the computer power supply, and CPU, Memory, Video Card, and so on. I'm guessing 1,000VA would be around 650-700watts, well unless someone revoked Ohms law anyway.

If you simply want to shut down, and save data, perhaps two might remain powered up for ten minutes, One 20 minutes. Also what else is being supplied via the UPS? You will need to keep your monitor(s) on, Suffice to say "Not very long".

Feb 15, 2013 | Liebert 1 KVA UPS MODEL RT1000-60...

1 Answer

I have a powerware 9120 (6kva) and about 1 week i replaced all 20 batteries after the UPS failed. but its displaying battery disconnected when i try to power it. i cant seem to figure the problem. i tried...


Did your UPS display "Battery disconnected" or did it display "Battery Failure"? If it was "Battery Failure", for some reason the Powerware 9120 will take almost 18 hours after plugging in to power after battery replacement to correct the Battery Failure indication. Charger has to charge up the batteries, followed by an automatic battery test by the UPS. If the indication was "Battery Disconnected", you will need to check the internal fuses to see if they are blown. If the UPS keeps blowing fuses, it will require a board repair.

Jun 12, 2011 | Powerware 9120 UPS System

1 Answer

Only one side of the outlets work...


From the User Manual:

“OVERLOAD/CHECK BATTERY” LED: this red LED lights continuously after a self-test to
indicate the capacity of the battery-supported outlets has been exceeded. To clear the overload, unplug some of your equipment from the battery-supported outlets; then use the ON/OFF/TEST button to run a Self-Test. If the UPS continues to detect an overload, remove more equipment and repeat the self test until successful.

CAUTION! Any overload that is not corrected by the user immediately following a self-test may cause the UPS to shut down and cease supplying output power in the event of a blackout or brownout.

The LED flashes to indicate the battery needs to be recharged or replaced. If the LED flashes (and a continuous alarm sounds) during a prolonged blackout or brownout, the UPS’s batteries are nearly out of power; you should save files and shut down your equipment immediately.

If the LED flashes following a UPS self-test (after the UPS is turned ON), it may indicate that the battery needs to be replaced. Allow the UPS to recharge continuously for 12 hours; then use the ON/OFF/TEST button to run a Self Test.

If the LED continues to flash, contact Tripp Lite for service. Should your UPS require battery replacement, visit Tripp Lite on the web at www.tripplite.com/support/battery/index.cfm to locate the specific replacement battery for your UPS.

Hope this helps!

Jul 25, 2010 | Tripp Lite Internet Office INTERNET550U...

1 Answer

Hello! I'm from Riyadh Saudi Arabia. I've left on my Tripp Lite UPS 1000 just last night. When I came in my office in the morning, my desktop computer including my computer server was OFF. I supprised that...


Unplug the computer. Then run the UPS self-test and the unit will display whether it finds an overload fault, whether the battery needs to be charged or replaced.
Here are the instructions (copied from the User Manual):
Turn UPS on: Press and hold the ON/OFF button for one second.

Run a Self-Test: Press and hold the MUTE/TEST button for two seconds (until alarm beeps several times).

The test will last 10 seconds. All LCD Display icons will be illuminated and the alarm will sound.

If the fault icon remains lit, the battery-supplied outlets are overloaded. Unplug powered devices until you remove the overload.

If the "Replace" icon remains lit and alarm continues to sound, the UPS batteries need to be recharged or replaced. Allow UPS to charge for 24 hours and repeat self-test.

Jul 01, 2010 | Tripp Lite (OMNIVSINT1000) UPS System

2 Answers

BackUPS cannot support during brownout.. is it a battery issue?


Hi there,

Yes it is a battery issue and you may have to contact either the vendor or manufacturer.

Warm regards,

Anirban Mazumdar

Nov 05, 2009 | APC Back-UPS CS 500VA UPS System

1 Answer

Insufficient Runtime Available on Agent


If the UPS display is indicating runtime at 6 mins, and software is saying insufficient, seems like a communications issue. I'd try downloading the latest communication software for the UPS and reseating the communications cable at both ends, making sure no bent pins, etc. could be causing a comm glitch.

Jun 25, 2009 | APC Smart-UPS 1500VA Shipboard...

1 Answer

Advanced power options settings UPS for blackout buster?software


I have to answer this question with just plain old common sense. Get a new one! This is crazy. If you get a new one, you will have a better, more upto date and something you can handle with todays OS and obviously new batteries. That is too old to mess with. I fixed a powerware once and the plastic was falling apart and the PC board was held together with a rubber band. Not worth it.

Jun 03, 2009 | PK Nextgrid BlackoutBuster B6U2 UPS System

1 Answer

Doesn't start and shows "Failure..." on display


Hi, a couple of things you can do but may I first suggest you bring it back to the Technical Support people who replaced the battery and voice your issue. The new battery might have to be replaced (don't be surprised) and you may have certain warranty claims that may be void if you try opening the UPS yourself. If for some reason you want to do it yourself, then you have to open the UPS and check the circuitry including the new battery. You need to be familiar with the use of a multitester (VOM), working with HOT circuits and general electronics. You have to start with any fuses, circuit breakers, relay, SCRs, transistors, etc. If you are not that comfortable doing so, guess were back to the first paragraph. Hope this be of some help. Good luck

Apr 25, 2007 | Powerware 9120 UPS System

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