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Operation
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Batt Gnd
Fault
Battery ground
fault alarm
Alarm NO YES NO YES
With the Batt Gnd Fault option installed and
the batt breaker closed, the DSP sees its
BGF input asserted by the SWGR. No
action required.
Aux Ovtemp
Warning
Aux Overtemp
Warning
Alarm YES YES NO YES
With the Auxiliary temp sensor installed, it
is reading 85% or more of the specified
Maximum Aux temperature set point value.
Batt Ovtemp
Warning
Battery
Overtemp
Warning
Alarm NO YES NO YES
With the battery breaker closed the battery
has exceeded the “Battery Temperature
Alarm Threshold” set point value.
Heatsink
Ovtemp
Heatsink
Overtemp
Warning
Alarm NO YES NO YES
Sensors on the power semiconductor
heatsinks detect temperatures above the
steady state limits for these components.
The control logic sets off the alarm but does
not shut down the UPS module if the
condition lasts less than 10 minutes. Check
the air intake, air exhaust, and filters.
Reduce the load or transfer it to bypass.
Contact Liebert Global Services if the alarm
persists.
Inlet Air
Ovtemp
Inlet Air
Overtemp
Warning
Alarm NO YES NO YES
The intake air to the UPS module exceeds
the specified maximum temperature. This
condition only causes an alarm, but should
be corrected immediately to prevent
equipment overheating. Check to make
sure nothing is blocking the inlet air and that
the air filter is clean.
Ups Ambient
OvTemp
UPS Ambient
OvTemp
Alarm NO YES NO YES
The Outlet air temperature has exceeded
85% of its “Maximum outlet air temperature”
limit.
Pwr pole Fan
1 Fail
Power pole
Fan 1 Fail
Alarm NO YES NO YES
A fault in the designated Fan motor has
occurred. This condition only causes an
alarm, but if not promptly corrected it could
cause an equipment over-temperature
condition that would shut down the UPS
Module. Check the Fans for proper
operation. Contact Liebert Global Services
if you require assistance or to replace a fan.
Pwr pole Fan
2 Fail
Power pole
Fan 2 Fail
Alarm NO YES NO YES
A fault in the designated Fan motor has
occurred. This condition only causes an
alarm, but if not promptly corrected it could
cause an equipment over-temperature
condition that would shut down the UPS
Module. Check the Fans for proper
operation. Contact Liebert Global Services
to replace a fan.
Pwr pole Fan
3 Fail
Power pole
Fan 3 Fail
Alarm NO YES NO YES
A fault in the designated Fan motor has
occurred. This condition only causes an
alarm, but if not promptly corrected it could
cause an equipment over-temperature
condition that would shut down the UPS
Module. Check the Fans for proper
operation. Contact Liebert Global Services
to replace a fan.
Table 7 Alarms, functions, and corrective actions (continued)
Actual
Alarm/fault
Name
Displayed
On Front
Panel
Description
of Alarm/
Fault
Fault
Or
Alarm
Latch
Mask
Dial
Mask
Freeze
Mask
Event Log
Mask Meaning and Corrective Action(s)