Liebert 300 series Installation, Operaton & Maintenance Manual page 57

Alarm
Input voltage sensor failed
x-phase
Output under-voltage
Output overvoltage
Output overcurrent
System output overloaded
Load transferred to bypass due
System output overloaded
UPS SYSTEM (continued)
voltage phase has two sensors. One of these sensors
Each input
has failed. Contact Liebert Customer Service and Support.
A fault has been detected in the inverter. caused by a UPS
failure. The load has been automatically transferred to the
Static Bypass Line. Power to the load is not being conditioned by
the UPS. Contact Liebert
UPS output voltage is below a specified minimum. The load has
been automatically transferred to the Static Bypass Line. Power
to the load is not being conditioned by the UPS. An automatic
retransfer will be attempted when the output voltage is within
tolerance. Contact Liebert
condition uersists.
UPS output voltage is above a specified maximum. The load has
been automatically transferred to the Static Bypass Line. Power
to the load is not being conditioned by the UPS. An automatic
retransfer will be attempted when the output voltage is within
tolerance. Contact Liebert
condition persists.
An output overcurrent surge has been detected. The load has
been automatically transferred to the Static Bypass Line. An
automatic retransfer will be attempted when the output current
returns to nominal. Contact Liebert Customer Seruice and
Support if this condition persists.
An overload condition is present. If the load is on the UPS
Bypass Line if the overload exceeds the UPS Module capacity.
Determine cause of the overload and reduce the load.
The load has been automatically transferred to the Static
Bypass Line because of an overload condition. Determine cause
of the overload and reduce the load.
The overload condition is still present and must be reduced or it
will soon exceed the capacity of the Static Bypass Line, resulting
in loss of all power to the critical load. Power to the load is not
being conditioned by the UPS. Determine cause of the ovdmzd
and reduce the load.
and Maintenance Manual (8195)
Meaning and
Customer Service and Support.
Customer Service and Support if this
Customer Service and Support