59
SALICRU
Also, alarm message screens may appear blinking and replacing any
other screen (even if is a in different menu or submenu) currently
displayed.
By pressing
(ENT)
, blinking alarm message is acknowledged and
previous screen is displayed again.
ALARMS
RECTIFIER
OVERLOAD
screen 4.0
screen 4.1
(
)
(
)
(
)
(
)
•••
See table 6, for alarms list
Fig. 48.
Screen 4.0 «Alarms» and its submenus.
•
Screen 4.1:
This alarm indicates that the rectifier is over-
loaded. The rectifier overload appears when the input current
of any phase is higher than the following ratio:
Iin-ovl = 0,326 x Pnom / Vin_p-n
Where:
Iin-ovl is Overload Input Current (A).
Pnom, is the nominal power rate of the equipment (VA).
Vin _ p-n, is the input voltage phase to neutral (V).
•
Screen 4.2
: This alarm indicates that the inverter is over-
loaded. The inverter overload appears when the output current
of any phase is higher than the following ratio:
Iout-ovl = Pnom / (Vout_nom_p-n * 3)
Where:
Iout-ovl, is the Overload Output Current ( A).
Pnom, is the nominal power rate of the equipment (VA).
Vout _ nom _ p-n, is the nominal output voltage phase to
neutral (V).
or when the total output active power is higher than the fol-
lowing formula:
Pact_out-ovl = Pnom x 0,8
Where:
Pact _ out-ovl, is the overload output active power (W).
Pnom is the nominal power rate of the equipment (VA).
•
Screen 4.3
: This alarm is displayed when the equipment is
both under main failure condition and battery level lower than
11.5V/bat.
•
Screen 4.4
: This alarm is displayed when the inverter output
voltage in any phase (phase to neutral) is out of the range +/-6
%.
•
Screen 4.5
: This alarm is displayed when there is an offset
voltage higher than 5V, in any phase of the inverter output
voltage (phase to neutral).
•
Screen 4.6
: When the maintenance bypass switch is ON the
UPS inverter will not be available.
•
Screen 4.7
: This alarm can be activated for two reasons:
a) Mains failure: when phase to neutral voltage in any input phase
is out of range (+15%/–20% by default) or when input fre-
quency is out of range (±5 Hz by default).
b) PFC-rectifier is on limiting power mode, so, the additional en-
ergy that the Inverter needs (it means the load connected
at the output of the equipment), is supplied by the batteries
(battery discharging current is displayed).
•
Screen 4.8
: When the inverter or PFC temperature probes
measure temperatures over the set values.
•
Screen 4.9
: This message is displayed when the battery switch
is OFF and the DC bus is charged to the battery voltage level, to
inform the user that battery switch can be to turned ON.
•
Screen 4.10
: This screen indicates that the bypass input
voltage or the bypass input frequency are out of range. These
ranges can be set but by default the bypass voltage range is
+12 %/–15 % and the bypass frequency range is ±5 Hz.
•
Screen 4.11
: The UPS is on bypass for any reason. It must be
restarted by LCD panel keypad.
•
Screen 4.12
: This is an alarm for parallel systems. It is dis-
played when any UPS of the parallel system is blocked because
its maintenance bypass switch is turned ON.
•
Screen 4.13
: This alarm indicates that the CAN BUS #1 fails.
This communication channel is not available currently.
•
Screen 4.14
: This alarm indicates that the CAN BUS #2 fails.
This channel is used for data communication among the UPSs
in a parallel system.
•
Screen 4.15
: This alarm is displayed when the estimated battery
life time has been exhausted. The revision and replacement of
some batteries will be necessary, which has to be done by the
S.T.S.
(Service and Technical Support) department.
•
Screen 4.16
: The temperature of battery cabinet (in case of
separate battery cabinet) or battery location (in case of bat-
teries are located inside the UPS) is higher than 40º C.
•
Screen 4.17
: If battery test (automatic or manual) is finished
unsuccessfully, this alarm will be displayed.
•
Screen 4.18
: Two possible reasons:
During the unit start up, a message is displayed indicating
that the battery switch can be turned ON. After some pe-
riod of time without turning ON, this alarm is displayed.
When the unit is running under normal conditions, and the
battery switch is switched OFF.
•
Screen 4.19
: When the mains is connected during the start up,
a wrong phase rotation is detected, so the start up procedure
is inhibited.
•
Screen 4.20
: When the bypass is connected during the start
up and a wrong phase rotation is detected, so the start up
procedure is inhibited.
•
Screen 4.20A
: Error in the memory of the equipment setting.
