Riello 100 kVA Manual page 38

PROBLEM
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
A13, A14, A15
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F19, F20
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
A26, A27
THE DISPLAY SHOWS
THE CODE S07
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F06, F07, F08
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L01, L10, L38, L39, L40,
L41
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
A22, A23, A24, F23, L23,
L24, L25
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L26, L27, L28
POSSIBLE CAUSE
OPENING OF THE
PROTECTION DEVICE
UPSTREAM FROM THE
BYPASS LINE (ONLY IN THE
CASE OF CONNECTION WITH
SEPARATE BYPASS)
BYPASS ISOLATING SWITCH
OPEN
BATTERY CHARGER
MALFUNCTIONING
BATTERY FUSES BLOWN OR
FUSE HOLDER ISOLATING
SWITCHES OPEN
THE BATTERIES ARE FLAT;
THE UPS IS WAITING FROM
THE BATTERY VOLTAGE TO
EXCEED THE SET
THRESHOLD
INPUT STATIC SWITCH
SHORT CIRCUIT
MALFUNCTIONING:
 OF THE
TEMPERATURE
SENSOR OR THE UPS
COOLING SYSTEM
 MAIN AUXILIARY
POWER SUPPLY
 STATIC BYPASS
SWITCH
THE LOAD APPLIED TO THE
UPS IS TOO HIGH
OUTPUT SHORT CIRCUIT
SOLUTION
Reset the upstream protection device. CAUTION:
check that check that no overload or short circuit is
present at the UPS output
Close the isolating switch located behind the door.
Open the battery rack switch/fuse and activate the
maintenance bypass (SWMB), switch off the UPS
completely. Switch the UPS back on and, if the problem
persists, contact the nearest assistance centre.
Replace the fuses or close the battery rack switch/fuse.
CAUTION: if necessary, it is advisable to replace the
fuses with others of the same type (see External
protection devices paragraph).
Wait until the batteries have recharged or force power-
on in manually from the "SYSTEM ON" menu.
Activate the maintenance bypass (SWMB), switch off
the UPS, open SWIN and contact the nearest
assistance centre. (Caution: once SWIN is open, it is no
longer possible to close it again before an assistance
intervention).
Activate the maintenance bypass (SWMB), switch the
UPS off and back on again. Exclude the maintenance
bypass. If the problem persists, call the nearest
assistance centre.
Reduce the load to within the threshold of 100% (or
user threshold in the cases of codes A22, A23, A24)
Switch off the UPS.
Disconnect all the utilities relative to the phase affected
by the short circuit. Check that state of the upstream
protection device.
Switch the UPS back on.
Reconnect the utilities one at a time in order to identify
the fault.