Powerware 9120 UPS System - Answered Questions & Fixed issues

it depends on which model 9120 700VA-6000VA. Also depends when is giving this message, in which stage of power on. give more details.

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.

The charger board has failure. Model already obsolete. Propose to buy a new unit

hi see some of these answers it may help http://www.fixya.com/support/t24235663-powerware_9120

Battery breaker open or blown DC Fuse

why don't you check the DC bank capacitors, you may need to replace them

Remove all load. Turn off UPS. Start UPS. If fail remains, check the fuses and battery.

Remove all load. Shutdown UPS. Restart UPS. If short remaining, then UPS is broken...

there is a 100uf/63v capacitor near the IRF630 fet. You need to replace this in order to fix this error. Along there is also a 2200uf/16v capacitor. It is a good idea to change the both at the same time.

Which error code?

You will have very little benefit from a schedule. All UPS are structured similarly. A rectifier, an inverter. A battery charger, a bypass ...

Difficult to answer with so little information. But the batteries are first suspected ...

Open cell in the battery. The batteries need to be replaced, or at least the most bad battery!

Replace the fan ...

Check the connections on the batteries. One or more may be loose or corroded. Also check the fuse for the batteries. It may have blown.

Be more specific. Exactly what do you see?

Hi Anonymous, I want to help you with your question, but I need more information from you. Are the batteries new? If you did recently replace the batteries in the cartridge, did you check the connections and make sure contact as being made? Let me know! Daniel • [email protected] • Power & Systems Innovations • 800.260.2259 • www.psihq.com

A weak or dead battery pack its the main reason of a unresponsive/good health UPS, but never forget to test the electric cord, the fuse and the protective relay.first, this sounds too simple, but thats a common fault. Battery pack must have at least 5 volts with half amp of current to power up the UPS internal relays, giving electric power to the main switch. To rise the 12/24 DC volts to 115/120 AC volts, the UPS uses some electronic components (semiconductors) called MOSFETS , and sometimes, blown (browned) MOSFETS on the electric board are the most desastrous cause of a unresponsive (completely dead) or faulty UPS. (I remember that some time ago I see a TRIPP LITE SMART 1500LCD UPS with twelve blown MOSFETS, when happened, that kind of fault must be saw like a little volcano!). If you know how to take all the safety electric measures, and how to use a portable voltmeter, you can test the voltage/amperage on the battery pack, the electric cord and the replaceable fuse (if has any). Basic and intermediate electronic knowledge is necessary to test MOSFETS and other electronic components on the circuit board.

lose conection between batteries,or battries leack problems

If your batteries are ok a DC BUS fault and low o/p voltage means one of the componants inside is defective. An end user can not effect repair. You need to have it looked at.