Powerware UPS
Powerware UPS
(OP)
I have a Powerware Personal 1000 UPS that I want to fix. I know it's old, but this will be good training. I bought new batteries for it. It's blowing the 30 amp fuses inside on the 30 volt DC side. I have not been able to find any manuals or schematics, been looking for weeks. If I could find the patent, it may have what I need, but I think the patent number is hidden in the barcode. Can anyone help me with this? ESOXmaniac, are you out there?





RE: Powerware UPS
Otherwise you should replace it. You don't want something like a UPS that sits under/in your furniture 24/7 waiting to burn down your facility. Newer ones have many, many, new safety improvements.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Powerware UPS
RE: Powerware UPS
Caps are the first thing to fail in most electronics. They often have a paste in them. Over time the required moisture slowly escapes until the cap's value changes too much, or the caps open, or fail catastrophically.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Powerware UPS
By the way, if your Powerware UPS says "Invensys" on it and you can't get support from them, it was purchased by Eaton Copr a few years ago, they might have info.
RE: Powerware UPS
Been looking for shorts; the 30v side acts like a cap where the batteries hookup (vom reads 10ohm one way, jumps to 20 then70 the other way), but amps peg my 50amp meter and the jumper wire starts smoking when I hookup the batteries. I really would like to find the schematic or a manual, but can't even find the patent#. Any way to read the barcode?
RE: Powerware UPS
Dan - Owner

http://www.Hi-TecDesigns.com
RE: Powerware UPS
RE: Powerware UPS
http://
Click "View Images" to see the actual printed patent
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RE: Powerware UPS
RE: Powerware UPS
I would suggest checking the power mosfets, that are usually heatsinked.
Then the driver circuits for these mosfets.
Then the driver circuits for these drivers.
The consider the time you have spent getting nowhere, and then follow itsmoked's advice and get a new one.
Regards, Ray.
RE: Powerware UPS
You can get support for powerware products at this link.
RE: Powerware UPS
RE: Powerware UPS
For example replacing the caps with new ones with some different esr (say a better one since it is an old unit) may create greater power-on surges that may in the long term damage the other parts at the primary side.
This is just to say that the design parameters are tight on these products, and controlling them is part of the know-how of these companies so they will not volunteer the information.
RE: Powerware UPS
Ford doesn't take any responsibility when I change the brakes on my truck.
RE: Powerware UPS
Dan - Owner

http://www.Hi-TecDesigns.com
RE: Powerware UPS
You can find a bit about the architecture by examining the part numbers on the controller chips. I doubt that they will use custom-made chips. Finding these data sheets may provide some good data on the subject. Except for the microcontroller that communicates with the computer.
RE: Powerware UPS
Thanks, also, Felixc, your answers are very helpful, just what I need. I've just been hoping to get lucky and find an inside track to info that is undoubtedly reserved for Powerware techs.
RE: Powerware UPS
RE: Powerware UPS
Dan - Owner

http://www.Hi-TecDesigns.com
RE: Powerware UPS
Bill
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