Liebert 30-130kVA Operation And Maintenance Manual page 85

Table 7 Alarms, functions, and corrective actions (continued)
Actual
Alarm/fault
Name
Displayed Description
On Front of Alarm/
Panel Fault
Inverter
Inv I limit xfer Current Limit
Transfer
Battery
Batt ovtemp
Overtemp CB
cb trip
Trip
Batt gnd CB Batt gnd fault
trip CB trip
Byp pwr Bypass Power
supply fail Supply Fail
EPO EPO
shutdown Shutdown
Fault
Or Latch Dial Freeze
Alarm Mask Mask Mask
Fault NO YES
Fault YES YES
Fault NO YES
Fault NO YES
Fault NO YES
Event Log
Mask Meaning and Corrective Action(s)
The instantaneous inverter current of any
one phase has exceeded its Pulse by Pulse
current limit value. An "Inverter Current
Limit" alarm was already issued and pulse
parallel operation was initiated. At the end
of pulse parallel the load current has not be
reduced below 150% The load will transfer
NO YES to Static Bypass. If the fault or over load
clears the unit will retransfer to UPS. Check
the total load compared to the UPS rating,
reduce load where necessary. If the UPS
does not retransfer when the load is below
100% of the rated load or if the unit shuts
down, contact Liebert Global Services
Immediately.
With the battery breaker closed and the
Battery Overtemp...Breaker Trip" option
enabled, the internal battery temperature
has exceeded its Maximum set point value.
The battery UV trip will be activate and the
battery will be disconnected from the UPS.
Battery Back up is no longer available.
NO YES
Check the battery to determine the possible
cause of the overload and remove if
possible. Once the battery has cooled
below the set point temperature, the battery
may be brought on line again. If the
problem recurs contact Liebert Global
Services.
With BGF option installed, BGF breaker trip
enabled, and batt breaker closed, Comms
DPS sees its BGF input asserted by the
NO YES SWGR. It will issue a batt breaker UV trip
and motor op disable. To correct, repair and
restart batt via the MM. Contact Liebert
Global Services for assistance.
With Bypass source available, the UPS has
determined that the bypass power supply
has failed. The SBS will be turned off and
NO YES the contactors opened. SBS will not be
available. This fault will inhibit transfers and
start-up. Contact Liebert Global Services
immediately.
The Emergency Power Off switch has been
pressed, which caused the UPS system to
shut down and remove all power from the
NO YES critical load. Determine the cause of the
emergency condition and correct it if
possible. Contact Liebert Global Services if
you require assistance.
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Operation