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My dell 1220 projcetor doesn't shift to UPS power when current goes off. It starts showing lamp indication. My UPS backup is ok even then this is happening.

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Look closely at your UPS or consult the manual. A lot of UPSs have 2 types of outlets. One type supplies power in the event of a power failure, the other offers surge protection only. Either you have it plugged into a surge only outlet or the projector is trying to draw more power than your UPS is capable of supplying.

Posted on Apr 18, 2017

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Hi, I am Indra,, I have a LG Studioworks 563A monitor,, always time is ok,, but evening time is some disturb me,, this monitor evening time voltage capability fault with UPS,, when i start my computer, UPS...


Not sure I fully understand the question but I'll give it a shot. If you mean that your UPS backup shows a fault.. more then likely the problem is with your UPS backup and not your monitor.. (unless your monitor is shorting out or has to much feedback to the power)
A few things that can cause this is a BAD UPS battery or a underrated UPS backup for devices. Based on the information you gave this monitor is a OLD CRT type monitor which uses quite a bit of power. I would first try the UPS backup with other devices to see if the same problem happens just like a computer or any other electrical device with out the LG connected. If the same problem occurs replace the battery and/or UPS backup, if it doesn't ... then you might have to just replace the monitor as it might be shorting out. With out proper test equipment a definite answer might be hard to come by.

Nov 05, 2013 | Computers & Internet

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My inverted goes to battery mode even when mains supply is ok.then it will come back to normal mode again and run of mains.what is the solution


If this happens repeatedly and doesn't stop for 10-30 minutes... then you have a bad inverter. Price of repair compared to just buying a new one are about the same.

Remember, it's not just sags in current that activate the UPS, it's also spikes... and if you're getting many of those in a short time frame then the UPS is doing it's job.

If you need UPS, Surge, or Power Related help contact Daniel @ Power & Systems Innovations 800.260.2259 or go
to our website: http://psihq.com/

Aug 27, 2013 | Compaq 204015-001 - UPS T700 - UPS - 700...

2 Answers

GE LP33 UPS inverter failed to start


Dear Yared,

Did you try to give the UPS some time to recharge the batteries?
Seems like the batteries have reached their cut-off voltage and are not supplying enough voltage to the inverter.

Normally the dc boos circuit of the UPS will supply voltage to the DC BUS so maybe the problem can be found in the dc boost circuit or BUS if recharging the batteries is not helping.

Let me know.

Best Regards,


Ron

Jan 22, 2013 | MGE Computers & Internet

2 Answers

Ups starts beeping


Is there any indicator lights ON showing the fault condition?
This could indicate that the battery has a low charge. Even if you switch off the mains supply and it switches over to the battery, the UPS may shut down after a short time as the battery power (charge) runs out.
If the battery is more than 3 years old then it may be due for replacement.

May 10, 2010 | Powercom BNT-1000AP (dspcmbnt1000ap) UPS...

1 Answer

The unit is 2 1/2 years old and all of a sudden started indicating overcurrent even when no loads were connected. Tried changing batteries to no avail.


yes that is a problem of battery you have to replace the battery because it is totally outdated opan the screws of ups and write down the voltage and current written on the battery current capacity is in AH (ampere/hour )

Feb 21, 2010 | APC Back-UPS XS900 (BX900) UPS System

3 Answers

My ups is switching off itself immediately the mains goes off.the battery is okay with 13v.


Batteries in the UPS typically last 3 to 5 years and it depends upon several factors. including the number of times the unit must go on battery power and enviromental conditions. There are usually several batteries in the UPS and while the battery voltage may show 13 volts, this may only a float voltage and a true indication of the battery voltage needs the batteries to be tested under a load. there maybe one battery that is faulty and causing the whole battery system to fail.
These lower powered and cheaper KVA type UPS are switch over types (when the mains fail, the UPS switches over to the inverter in milli-seconds to supply mains power). It is a possibility the inverter circuit is faulty and when the mains power fails the inverter does not switch over.

The true UPS type are usually the higher KVA units (over 1500 KVA units) that converts mains power continuously via the inverter circuit. The mains power charges the batteries and the inverter drawing power from continuously from the batteries (therefore there is no switch over time lag from the mains to the battery.

Sep 25, 2009 | MGE Pulsar Ellipse 800 (89363) UPS System

1 Answer

APC 650 Pro not working properly.


My question is how long is the battery inside your UPS? 5years ? coz sometimes you cannot just base on the voltage you measure on the batteries. dont forget about the current that is being supplied by the batteries maybe the battery current is too weak to handle your load. but if you are really sure that your battery is good. try to check the inverter circuit of your UPS. or send it to UPS service center if you dont know how to check electronics component.

Jul 02, 2009 | APC Smart-UPS 1400VA UPS System

1 Answer

Dead appearing ups/inverter


keep on your main switch. off all the lights fan and other electrical items, let that inverter get charge first

Jun 18, 2009 | APC Back-UPS CS 500VA UPS System

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