My UPS Powerware 9120 6kva. At inverter section. what is the component type for Q213,Q214,Q215 and Q216, i means type and it part number. Can U forward to me the Service Manual for that UPS. TQ

Hi guys, this series of UPS is modular type, that particular problem code were board problem you cannot fix that on your own.

Here is the 9120 documentation page but Eaton generally does not publish circuit diagrams for smaller UPSs like this. Some people may be technical enough to take a UPS apart but most aren't and it can be very dangerous. I suggest you contact the Eaton hardware support forum.

Here is the 9395 documentation page: http://powerquality.eaton.com/Products-services/legacy/9305-info.asp You can also leverage the hardware support forum: http://tools.mgeops.com/form/support/index_hard.php

Try contacting Eaton. They bought Powerware about 6 years ago and the personnel are trained on older Powerware systems. If you have the part number and serial number from the rating label on the UPS, that would be helpful.

Toll Free: 1 800 356 5737
E-mail: [email protected]

I don't know the exact cross reference number for you but Eaton tech support should be able to help you. Eaton bought Powerware 6 years ago but retained their service support personnel.
Toll Free: 1 800 843 9433
International: +1 919 871 1800
E-mail: [email protected]

open the ups and check whether the battery faulty or not if faulty replace it, if ok then check mosfet or IGBT used in inverter section if faulty replace it problem wil be solved

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. There maybe one battery in a set of batteries that is faulty and causes the whole battery system to fail and indicate a battery fault.

These lower powered and cheaper KVA type UPS are switch over types, when the mains supply fail, the UPS switches over to the inverter in milli-seconds which then supplies mains power but the power waveform is a pseudo sine wave (ie not a true sinewave. A faulty inverter circuit won’t deliver power when the mains supply fails.

The true UPS types are usually the higher KVA units (over 1500 VA) that supplies uninterrupted 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 therefore there is no switch over time lag from the mains to the battery.

If the load is dropped then there is a serious fault with the ups, even if the inverter fails, it should go to bypass and not drop the load.

Sound like a control fault, I suggest you need a ups tech.

This equipment has many dangerous parts inside. Batteries are always live and very dangerous. The boards are stuffed the surface mount components.

You need an approved service agent, who should be able to help

your problem could be related to a dispay board or possible CSB board.

sounds like inverter is unhappy(causing the input fuse to blow. maybe, just maybe, this Powerware 9120 has given up the ghost? The inverter can short for a variety of reasons. Try to take out the battery completely, and run it as just a power conditioner. If that works, then you have an unhappy inverter in there.