ups 20 kva - MGE GALAXY 3500

[ALTALEB_apc]

Hello

Dears kindly i need a help as i just got an alarm shows that

(( An input voltage or frequency problem prevents  switching  to bypass mode ))

and on the screen i saw this message

(( Bypass Not Available , input out of range ))

so kindly assist me to solve this problem ...

[BillP · Accepted solution]

Please review this APC knowledge base article -> http://www.apc.com/support/index?page=content&country=ITB〈=en&locale=en_US&id=FA173909 

It means you had an input voltage or frequency go outside of a specified range so if the UPS had to go to bypass while the alarm was active, it would not be able to.