Liebert 30-130kVA Operation And Maintenance Manual page 83

Table 7 Alarms, functions, and corrective actions (continued)
Actual
Alarm/fault
Name
Displayed Description
On Front of Alarm/
Panel Fault
Trap Fuse
Trap Fuse Fail
Fail
On Battery On Battery
Battery Battery
Overcharge Overchg
Bypass
Byp Freq
Frequency
Error
Error
Bypass
Byp ovld
OverLoad
Shutdown
Shutdown
Byp Phase Bypass Phase
Rot Error Rotation Error
IDC Peak IDC Peak
Fault
Or Latch Dial Freeze
Alarm Mask Mask Mask
Fault NO YES
Alarm NO NO
Fault YES YES
Fault NO NO
Fault YES YES
Fault NO NO
Fault YES YES
Event Log
Mask Meaning and Corrective Action(s)
On units equipped with an input filter,
Control Logic has determined that one or
more of the filter fuses is open. The logic
NO YES will open the Input filter contactor. The UPS
will continue to run, without input filtering.
Contact Liebert Global Service to check
and repair the input filter.
Reports an On Battery state as long as the
battery CB is closed, Input Undervoltage
NO YES
alarm exists, and the status bit ON UPS is
set.
Battery charge current is 50% above the
Battery Charge Current Limit for longer than
5 seconds. The load will be transferred to
Bypass. If Bypass is not available the UPS
NO YES will attempt to run from the battery. If both
battery and bypass are not available, a full
system shutdown will be initiated. This fault
will inhibit start-up. Contact Liebert Global
Services immediately
The bypass frequency is outside the ± 5%
of the system rating. If the load is on
bypass the static switch will be shut down
and power will be lost to the load. If the load
is on UPS, transfer to bypass will be
NO YES inhibited, until this fault clears or is
corrected. This fault will inhibit startup. If
fault persists check the bypass source for
the cause of the frequency irregularity.
Contact Liebert Global services if you have
questions.
With the load on Static Bypass the system
has determined that at least one phase of
the Bypass has exceeded the KVA, KW, or
RMS current vs. Time overload spec. The
Static Bypass switch will be turned of and
NO YES the system will be shut down. Power to the
load will be turned off. Remove the excess
load from the UPS and attempt to re-start. If
the load is below the rating of the UPS and
it will not re-start, contact Liebert Global
Services.
The power conductors on the bypass line
are not wired to the UPS in the required
sequence. This alarm should appear only
during initial start-up or after a repair to the
NO YES
source power system. Disconnect power
from the bypass line and correct the wiring.
Liebert Global Services must be present
during initial start-up of your UPS System.
The system has detected a failed IGBT.
The unit will transfer to Bypass if available.
NO YES
Contact Liebert Global Services
immediately.
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Operation