User’s manual
19
UPS EVO TM
13. TROUBLESHOOTING
Following are described some functioning anomalies and relating solutions:
UPS doesn’t lights on without giving any information
•
Check if main switch on the rear is in ON position.
UPS continues to function in BATTERY mode also if AC input line is
present at the input
•
Make sure that is present AC input line at the input of the UPS and that AC input line
voltage amplitude is inside specified ranges.
•
Before making following operations turn off the UPS, positioning main switch
on the rear side on OFF, and removing AC input line at UPS input.
•
Check all input line cables.
•
Check connections to IN/OUT terminal blocks.
OVERLOAD indication on the UPS
•
Check UPS powered devices and if UPS is really overloaded.
•
Report power request in specified range disconnecting devices that generates overload.
UPS POWERED DEVICES DOESN’T LIGHTS ON
•
Before making following operations turn off the UPS, positioning main switch
on the rear side on OFF, and removing mains voltage at UPS in.
•
Check connections with in/out terminal blocks.
•
Check for every single connection cable state.
Overload thermic protection or inverter fault
The anomaly condition is highlighted by:
•
FAULT
led lighting on and continuos acoustic alarm signal
Make the following operations:
•
Deactivate the INVERTER the
OFF
button.
•
Disconnect all loads at the UPS output.
•
Reactivate the INVERTER pressing the
ON
button.
•
Check that UPS EVO TM is functioning regularly in LINE mode and the
FAULT
led off
(alarm disappeared).
•
In event of alarm disappeared reconnect by degrees the output load, locating and
removing the ones generated alarm condition.
The UPS autonomy is less then specified
•
Recharge batteries for at leas 10 hours and then check again their autonomy.
