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PROBLEM
POSSIBLE CAUSE
SOLUTION
THE ALARM LIST
SHOWS THE CODE S30
THE BATTERIES ARE
DISCHARGED; THE UPS
WAITS FOR THE BATTERY
VOLTAGE EXCEEDING THE
SET THRESHOLD
Wait for the batteries to recharge or force power on
from the “Command panel”
THE ALARM LIST
SHOWS C01
THE JUMPER IS MISSING
FROM THE R.E.P.O.
CONNECTOR (REFER TO
R.E.P.O - “COMMUNICATIONS”
CHAPTER) OR THE
CONNECTOR IS NOT
INSERTED CORRECTLY
Assemble the jumper or check that it is inserted
correctly.
THE ALARM LIST
SHOWS C05
MAINTENANCE BYPASS
ISOLATOR (SWMB) CLOSED
Verify if manual bypass switch (SWMB) is actually
closed and why. If manual bypass is open contact your
local service centre.
ALARM LIST SHOWS
A01, A50
INCORRECT DATA
CONFIGURATION
Check the settings
THE ALARM LIST
SHOWS NOTHING,
PROVIDES
INCORRECT
INFORMATION OR
SHOWS A02
THE DISPLAY HAS POWER
SUPPLY PROBLEMS
Close the Manual Bypass switch (SWMB) keeping
closed the INPUT and OUTPUT switches.
Open input switch (SWIN and SWBYP if present) and
wait until the UPS completely turns OFF.
Close the SWIN and SWBYP switches again and verify
regular display operation. Switch off the maintenance
bypass. If the fault persists, contact the nearest
technical support centre.
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES: A08, A09, A10
ONE OR MORE PHASES ARE
NOT CONNECTED
Check the input terminal connections
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES: A13, A14, A15
PROTECTIVE DEVICE
UPSTREAM FROM THE
BYPASS LINE OPEN (ONLY IF
BYPASS IS SEPARATE)
Reset the protective device upstream.
WARNING:
check that there is no overload or short
circuit at the output of the UPS
BYPASS SWITCH OPEN
(SWBYP ONLY IF BYPASS IS
SEPARATE FROM MAINS)
Close the bypass switch (SWBYP) if present
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES: A26, A27
WRONG BATTERY
CONNECTIONS OR BATTERY
FUSES BLOWN
Verify battery connections and, if the connections are
correct, replace the fuses or close the fuse holders
(SWBATT).
WARNING: if necessary, we recommend to replace
fuses only with others of the same type. (for further
information refer to the Installation manual).
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES:
A30, A32, A33 AND
THE UPS DOES NOT
START
AMBIENT TEMPERATURE
< 0°C
Heat-up the environment, wait for the heat sink
temperature to rise above 0°C and then start up the
UPS
FAULT IN TEMPERATURE
MEASURE SYSTEM
Activate the maintenance bypass (SWMB), turn the
UPS off and on again and switch off the maintenance
bypass. If the problem persists, call your local service
centre
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES: A39, A40
THE BATTERIES FAILED THE
PERIODIC EFFICIENCY TEST
The batteries of the UPS should be replaced as they
are no longer able to maintain the charge for a sufficient
time to ensure the required autonomy.
WARNING: The batteries are to be replaced by
qualified staff.
