Liebert 30-130kVA Operation And Maintenance Manual page 90

Table 7 Alarms, functions, and corrective actions (continued)
Actual
Alarm/fault
Name
Displayed Description
On Front of Alarm/
Panel Fault
SBS Ovld SBS Overload
Phase A Phase A
SBS Ovld SBS Overload
Phase B Phase B
SBS Ovld SBS Overload
Phase C Phase C
Inverter I Inverter
Limit Current Limit
Output OF/UF Output OF/UF
Inverter
Inv Ovld
Overload
Phase A
Phase A
Inverter
Inv Ovld
Overload
Phase B
Phase B
Fault
Or Latch Dial Freeze
Alarm Mask Mask Mask
Alarm NO NO
Alarm NO NO
Alarm NO NO
Alarm NO NO
Alarm NO YES
Alarm NO YES
Alarm NO YES
Event Log
Mask Meaning and Corrective Action(s)
With the load on Static Bypass, the phase A
output kVA or kW or RMS current has
exceeded 115% of the nominal per-phase
kVA or kW or RMS current rating. The UPS
NO YES
will show time remaining until a shutdown
will occur, per the Overload vs. time curve.
The alarm will clear when the overload falls
to below 110% of the rating.
With the load on Static Bypass, the phase B
output kVA or kW or RMS current has
exceeded 115% of the nominal per-phase
kVA or kW or RMS current rating. The UPS
NO YES
will show time remaining until a shutdown
will occur, per the Overload vs. time curve.
The alarm will clear when the overload falls
to below 110% of the rating.
With the load on Static Bypass, the phase C
output kVA or kW or RMS current has
exceeded 115% of the nominal per-phase
kVA or kW or RMS current rating. The UPS
NO YES
will show time remaining until a shutdown
will occur, per the Overload vs. time curve.
The alarm will clear when the overload falls
to below 110% of the rating.
The instantaneous inverter current of any
one phase has exceeded its pulse-by-pulse
NO YES current limit value. The UPS will shutdown
when the Current Overload vs. time curve is
exceeded.
Output frequency differs from the nominal
(60Hz) by more than 0.5Hz. No transfer or
NO YES
shutdown occurs. Contact Liebert Global
Services at once.
With the load on UPS, Phase x output KVA
or KW or RMS current has exceeded 105%
of the nominal per phase rating. The UPS
will begin sending the time remaining until a
NO YES
transfer or shutdown will occur, per the
Overload vs. Time Curve. The alarm
condition will clear when the overload
returns to below the nominal rating.
With the load on UPS, Phase A output kVA
or kW or RMS current has exceeded 105%
of the nominal per phase rating. The UPS
will begin sending the time remaining until a
NO YES
transfer or shutdown will occur, per the
Overload vs. Time Curve. The alarm
condition will clear when the overload
returns to below the nominal rating.
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Operation