Question about IBM Tripp Lite Internet Office 500 (09N3854) UPS System

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IBM OP500 Uninterruptable Power Supply

Help! My UPS has been sitting there hidden away for years. I recently found that it no longer worked - didn't seem to hold a charge. I thought the best bet was a worn-out battery so I replaced it. It still dosen't seem to be working. When I unplug it trying to test the battery back-up, everything dies. Currently, there is a yellow light blinking which has a picture of a battery with a slash through it. The first thing I would like to do is find the operating instructions and make sure I'm operating it correctly. They should be no more than a page or two. Thanks

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Http:// that is the link to the manual you need. It sounds like your UPS is not turned on correctly. You must press and hold the on switch. Make sure the AC sign wave is lit solid not blinking, the battery should not be lit as well. If the battery is yellow, that means you are running on battery, if it is red that means the battery is low.

Posted on Jan 25, 2007

  • bambus011 Oct 20, 2010

    Hi DURock,
    I don't think that you are talking about the same product. The on/off switch goes left and right and can not be pressed.




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Posted on Jan 02, 2017


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Another possible solution may be to use a UPS on the controller. This stands for uninterruptable power supply. However long prolonged power failures may drain the UPS battery but it would work for short power interruptions (time depends on the standby power drain of your door controller and the VA rating of the UPS) and brown outs to the power lines. These are used on computers normally so a search on the internet for UPS or take a visit to a computer shop and they would source or carry a UPS device.

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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 environmental conditions. There are usually several batteries in the UPS and while the battery voltage may show 13 volts, this may only be a float charge/voltage and a true indication of the battery voltage and condition requires the batteries to be tested under a load. If one battery is faulty in a set of batteries it will causes the whole battery system to fail and indicate a battery fault. A faulty charging circuit will not charge the batteries and will also cause a fault condition.

Lower powered and cheaper type UPS are switch over types, when the mains supply fails, the UPS switches over to the battery and inverter in milli-seconds which then supplies mains power to the computer and peripherals. A faulty inverter circuit and or flat batteries won’t deliver standby power when the mains supply fails.

NOTE the power waveform from these UPS is a pseudo sine wave (i.e. not a true sine wave).

The true UPS types are usually the higher KVA units (over 1500 VA) that supply continuous mains power. The mains power is connected to a charger which charges the batteries and the inverter draws power from these batteries and converts it to true sine wave mains power to the computer equipment, therefore there is no switch over time lag when the mains supply fails.

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1 Answer

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Did it just start, or has it happened before, if so, how often?
I've found that I have to reboot my Belkin router, usually daily!
What I've found was my wireless headphones were interferring with the wireless channels on my Belkin. I ended up unplugging my wireless headphones while on the internet, then plugging them back when I wanted to use them.
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1 Answer

My ups battery backup time is too short even i replace the battery

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Have you tried pressing and holding the off\on switch to make sure it toggles to "normal" rather than "charge"?

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