Aros Flexus FM, User Manual

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TROUBLESHOOTING GUIDE
The irregular operation of the UPS is very often not due to a malfunction, but to simple problems, inconveniences or
distractions.
Users are advised to consult the following table which provides useful information on how to solve some of the most
common problems.
WARNING:
the table below often refers to the use of the maintenance BYPASS. Remember to make sure that
the UPS is powered up and
not in STAND BY mode
before restoring the correct operation.
If it is in Stand By mode, switch the UPS on, entering the SYSTEM ON menu and wait until the start up
sequence has finished before removing the maintenance BYPASS.
For further details,
read the sequence described in the section describing the maintenance BYPASS
(SWMB) very carefully.
NOTE: For the exact meaning of the codes mentioned in the table, please read the “ALARM CODES” section.
PROBLEM POSSIBLE CAUSE SOLUTION
CONNECTION TO THE INPUT
TERMINAL MISSING
Connect the mains to the terminals following the
indications in the paragraph on Installation.
NEUTRAL CONNECTION
MISSING
The UPS cannot operate without the neutral
connection. WARNING: The absence of this connection
could damage the UPS and the load.
Connect the mains to the terminals following the
indications in the paragraph on Installation.
1/0 SWITCH LOCATED
BEHIND THE DOOR IN 0
POSITION
Set the switch to 1
THE SWIN SWITCH LOCATED
BEHIND THE DOOR IS OPEN
Close the switch
MAINS POWER FAILURE
(BLACKOUT)
Check that mains power is restored and if necessary,
switch on the batteries to power the load.
THE UPS CONNECTED
TO THE MAINS, DOES
NOT SWITCH TO STAND
BY MODE
(THE RED
BLOCK/STAND-BY LED
DOES NOT FLASH, NO
BEEP SOUNDS AND THE
DISPLAY DOES NOT
LIGHT UP)
INTERVENTION OF
UPSTREAM PROTECTION
DEVICE
Restore the protection.
WARNING: check that there is no overload or short
circuit on the UPS output.
CONNECTION TO THE
OUTPUT TERMINALS
MISSING
Connect the load to the terminals
THE SWOUT SWITCH
LOCATED BEHIND THE DOOR
IS OPEN
Close the switch
THE UPS IS IN STAND-BY
MODE
Run the start-up sequence
STAND-BY OFF MODE HAS
BEEN SELECTED
Change the operating mode: STAND-BY OFF
(emergency) mode is used to power the loads only
during blackouts.
NO POWER REACHES
THE LOAD
MALFUNCTION OF THE UPS
AND AUTOMATIC BYPASS
OUT OF USE
Insert the maintenance bypass (SWMB) and contact
the nearest service centre.
INTERVENTION OF THE
UPSTREAM PROTECTION
DEVICE
Restore the protection.
WARNING: check that there is no overload or short
circuit on the UPS output.
THE UPS OPERATES
OFF THE BATTERIES
EVEN THOUGH MAINS
POWER IS PRESENT
THE INPUT VOLTAGE IS
OUTSIDE THE ACCEPTED
OPERATING VALUES FOR
MAINS POWER
Problem caused by mains power. Wait until the input
voltage falls within the tolerance values. The UPS will
automatically switch over to mains power.