TROUBLESHOOTING GUIDE
Irregular operation of the UPS is very often not an indication of a fault but is simply caused by simple problems or distractions.
We therefore recommend you consult the table here below, which provides some information that will help you to solve the most
common problems.
WARNING:
the table below frequently recommends the use of the maintenance BYPASS. We remind you that
before restoring the UPS to operation, you must make sure that it is on and
not in STAND-BY
.
If the UPS is in this latter mode, turn on the UPS by accessing the “SYSTEM ON” menu and wait for the power-on
sequence to be completed before removing the maintenance BYPASS.
For further details
read the procedures described in the
maintenance BYPASS (SWMB
) paragraph.
NOTE: For a detailed explanation of the codes listed in the table, see the “STATUS/ALARM CODES” paragraph.
PROBLEM
POSSIBLE CAUSE
SOLUTION
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)
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 (if present)
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.
INTERVENTION OF
UPSTREAM PROTECTION
DEVICE
Restore the protection.
WARNING: check that there is no overload or short
circuit on the UPS output.
NO POWER REACHES
THE LOAD
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.
MALFUNCTION OF THE UPS
AND AUTOMATIC BYPASS
OUT OF USE
Insert the maintenance bypass (SWMB) and contact
the nearest service centre.
THE UPS OPERATES
OFF THE BATTERIES
EVEN THOUGH MAINS
POWER IS PRESENT
INTERVENTION OF THE
UPSTREAM PROTECTION
DEVICE
Restore the protection.
WARNING: check that there is no overload or short
circuit on the UPS output.
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.