MGE UPS Systems S 3000 RT 3U User Manual

34008236EN/AA

 - Page 13

3. Operation

3.1 Start-up and normal operation

  

3.2 Operation on battery power

  

Press 

button 

(24) for approximately 1 second.

◗

  The buzzer beeps once and all the LEDs go ON simultaneously.

◗

  If AC input power is available, button (24) and LED (25) are ON. The load 

is supplied by the AC-power source. Conditions permitting, the UPS runs 
a battery test, indicated by LEDs (21) and the buzzer.

◗

  If AC input power is not available, button (24) and LEDs (25) and (26) are 

ON. The load is supplied by the UPS on battery power.

    

If LED (27) is ON, a fault has occurred (see the 

"

Troubleshooting

"

 

section).

     

 

◗

  The connected devices continue to be supplied by the UPS when AC 

input power is no longer available. The necessary energy is provided by 
the battery.

◗

  Button (24) and LEDs (25) and (26) are ON.

◗

  The audio alarm beeps every ten seconds.

  

 

   

 

◗

  Button (24) and LEDs (25) and (26) are ON.

◗

  The audio alarm beeps every three seconds.

The remaining battery power is low. 
Shut down all applications on the connected equipment because 
automatic UPS shutdown is imminent.

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