PRELIMINARY
93
PROBLEM
POSSIBLE CAUSE
SOLUTION
THE DISPLAY SHOWS
C01
JUMPER MISSING ON THE
R.E.P.O. CONNECTOR (J13,
POINT 5 - “VIEW OF UPS
CONNECTIONS”) OR IS NOT
INSERTED CORRECTLY
Mount the jumper or check that it is inserted correctly.
SWMB MAINTENANCE
BYPASS SWITCH IS CLOSED
Open the SWMB switch located behind the door.
THE DISPLAY SHOWS
C02
JUMPER MISSING ON THE
TERMINALS FOR THE
REMOTE MAINTENANCE
BYPASS (J10, POINT 2 - “VIEW
OF UPS CONNECTIONS”)
Insert the jumper
ENVIRONMENTAL
TEMPERATURE < 0°C
Heat the environment, wait until the temperature of the
heat sink rises above 0°C and then switch on the UPS
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
A30, A32, A33, A34
AND THE UPS DOES
NOT START UP
MALFUNCTION OF THE
TEMPERATURE SENSOR ON
THE HEAT SINK
Activate the maintenance bypass (SWMB), switch the
UPS off and then on again and exclude the
maintenance bypass. If the problem persists, call the
nearest service centre.
MALFUNCTION AT THE UPS
INPUT STAGE
Activate the maintenance bypass (SWMB), switch the
UPS off and then on again and exclude the
maintenance bypass. If the problem persists, call the
nearest service centre.
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F09, F10
PHASE 1 HAS A MUCH
LOWER VOLTAGE THAN THE
OTHER TWO PHASES.
Open the SWIN, start up the UPS using the batteries,
wait until the sequence ends and then close SWIN
INSERTION OF FAULTY
LOADS
Disconnect the load. Insert the maintenance bypass
(SWMB), switch the UPS off and then on again.
Exclude the maintenance bypass. If the problem still
persists, call the nearest service centre.
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F11, F14, F17, L06, L07,
L08, L09, L14, L17, L20
MALFUNCTION AT THE UPS
INPUT OR OUTPUT STAGE
Activate the maintenance bypass (SWMB), switch the
UPS off and then on again and exclude the
maintenance bypass. If the problem persists, call the
nearest service centre.
NO CONNECTION ON ONE OR
MORE PHASES
Check the connections to the terminals
SHORT CIRCUIT BAR
MISSING FOR INPUT SINGLE
PHASE CONNECTION
Insert the bar following the instructions given in the
paragraph on single-phase connections.
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F03, F04, F05, A08, A09,
A10
THE INTERNAL PROTECTION
FUSES ON THE PHASES OR
THE INPUT RELAY HAVE
BLOWN
Call the nearest service centre.
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F42, F43, F44, L42, L43,
L44
THE INTERNAL PROTECTION
FUSES ON THE BATTERIES
HAVE BLOWN
Call the nearest service centre.
PRELIMINARY
94
PROBLEM
POSSIBLE CAUSE
SOLUTION
OPEN THE PROTECTION
UPSTREAM OF THE BYPASS
(ONLY FOR SEPARATE
BYPASS)
Restore the upstream protection
WARNING: check that there is no overload or short
circuit on the UPS output.
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
A13
BYPASS SWITCH SWBYP
OPEN (ONLY FOR SEPARATE
BYPASS)
Close the switch located behind the door.
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F19, F20
MALFUNCTION OF THE
BATTERY CHARGER
Open the battery fuse holders (SWBATT) and insert the
maintenance bypass (SWMB), shut down the UPS
using the 1/0 button located behind the door. Switch the
UPS back on again and if the problem persists, contact
the nearest service centre.
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
A26, A27
BATTERY FUSES
INTERRUPTED OR FUSE
HOLDER SWITCHES OPEN
Replace the fuses of close the SWBATT switches.
WARNING: whenever necessary, it is advisable to
replace fuses with others of the same type (see the
section “UPS internal protections)
THE DISPLAY SHOWS
THE CODE S06
THE BATTERIES ARE
DISCHARGED. THE UPS
WAITS UNTIL THE BATTERY
VOLTAGE RISES ABOVE THE
ESTABLISHED THRESHOLD
VALUE
Wait for the batteries to recharge or manually force start
up from the “START UP” menu.
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F06, F07, F08
INPUT RELAY BLOCKED
Activate the maintenance bypass (SWMB), switch off
the UPS, open SWIN and contact the nearest service
centre.
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L01, L10, L38, L39, L40,
L41
MALFUNCTIONING OF THE:
§
TEMPERATURE
SENSOR OR THE UPS
COOLING SYSTEM
§
MAIN AUXILIARY
POWER SUPPLY
§
STATIC BYPASS
SWITCH
Activate the maintenance bypass (SWMB), switch the
UPS off and then on again and exclude the
maintenance bypass. If the problem persists, call the
nearest service centre.
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
A22, F23, L23
THE LOAD CONNECTED TO
THE UPS IS TOO HIGH
Reduce the load until it falls within the 100% threshold
(or load threshold if code A22 is displayed)
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L26
OUTPUT SHORT CIRCUIT
Switch the UPS off.
Disconnect all the loads relating to the phases affected
by the short circuit.
Restart the UPS.
Re-connect the loads one at a time in order to identify
the fault.