APC AP9608 - Manual (Page 20)

16
UPS STATUS AND DIAGNOSTICS
(Symmetra Power Array, Continued)
Item Description
Load Assuming No
Redundancy
Connected load as a percentage of the capacity of the
good battery modules, assuming all good modules
are available for power.
Allowing For
n+[1] Redundancy
Connected load as a percentage of the capacity of the
good battery modules, assuming one [two, no] good
module is reserved for redundancy. The value of
redundancy (n+0, n+1, n+2) is taken from the Alarm
if Under setting (see below).
(Battery Power)
Capacity
Battery power available, in kilovolt-amps.
(Load)Alarm
if Over
Load alarm threshold, in kilovolt-amps. If the load is
at or above this setting, an alarm sounds. Changeable
in the UPS Characteristics menu.
Installed
Number of power modules/batteries installed in the
Symmetra Power Array.
Bad Number of power modules/batteries that have failed.
Fault Tolerance
Redundancy of the Symmetra Power Array, given the
present load and battery capacity. A Fault Tolerance
of n+2, for example, means that two modules could
fail and there would be enough power for the load in
the event of utility lin e power outage.
(Fault Tolerance)
Alarm if Under
Low redundancy alarm. If the Fault Tolerance goes
below this setting, an alarm sounds. Changeable in
the UPS Characteristics menu.
Voltage Total voltage of the batteries, in volts DC.
(Battery Charge)
Capacity
Battery charge as a percentage of capacity.
Runtime
Estimated runtime on-battery with the present load,
based on the latest Run Time Calibr ation (Sec. 4.3).
(Runtime)
Alarm if Under
Runtime alarm threshold, in minutes. If the Runtime
reading falls below this setting, an alarm sounds.
Changeable in the UPS Characteristics menu.