HP UPS on buck

We have a HP UPS R1500 G3. It keeps beeping alerts - UPS on buck.

I tried to reduce servers to make it less load, but it is still beeping all the time.  

Any idea? thanks
tonitoni99Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

andreasSystem AdminCommented:
Maybe the battery went bad. Try to access the UPS with its monitoring and management tool too see details of its status.
Mal OsborneAlpha GeekCommented:
This means that the incoming voltage is significantly higher than the set output voltage.  No big problem, however battery life may be shortened and things will run warmer and use more power. Reducing the load will not help, in fact it may make matters slightly worse.

It is worth checking the set voltage.  Here in Australia, HP UPS ship set to 230V, however our normal line voltage is 240. Other regions are set to 110, but the supply is 117.

You can also check with the supplied software, and get a graph of line voltage.  If it is out of the local power companies published specs, get in contact with them and ask for proper power.
Mal OsborneAlpha GeekCommented:
User guide is below. What are the two DIP switches set to (on Page 13)?  What is your local supply voltage?

http://h10032.www1.hp.com/ctg/Manual/c02867104.pdf

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Hardware

From novice to tech pro — start learning today.