screen has been reviewed, press the Enter key. The percent
load with redundancy status screen appears.
% Load With Redundancy Status Screen
Fig 7-7 Percent Load With Redundancy Status Screen
% Load Allowing For Redundancy - displays the percent of
the non-redundant Power Array capacity that is required by
the load. The non-redundant Power Array capacity is de-
fined by the number of user defined non-redundant power
modules installed multiplied by 4kVA, and it is limited by
the kVA rating of the frame. See table 7-1. After the load
with redundancy status screen has been reviewed, press the
Enter key. The frequency status screen appears.
Note: The redundancy level for this measurement is user de-
fined and will be assigned in step 6 of this procedure. Either
zero, one, or two of the power modules will be designated as
redundant. The remaining power modules are then defined
as non-redundant.
Table 7-1 Non-Redundant Power Array Capacities
Frequency Status Screen
Fig 7-8 Frequency Status Screen
Frequencies - displays the input frequency that is being re-
ceived from the utility power source and the output frequency
being delivered to the load equipment. After the frequency
status screen has been reviewed, press the Enter key. The bat-
tery status screen appears.
Battery Status Screen
Fig 7-9 Battery Status Screen
Battery Status Screen - displays battery voltage, the percent-
age of available battery capacity, number of battery modules
that are installed, number of battery modules that are bad,
and the predicted run time. Use this screen to check the sta-
tus of the battery modules. After the battery status screen
has been reviewed, press the Enter key. The power status
screen appears.
Note: If a battery module is diagnosed as bad, see Chapter 8.
Power Status Screen
Fig 7-10 Sample Power Status Screen
Power Status Screen - the reported Power Array capacity is
dependent upon the number of power modules installed and
the size of the frame. Use table 7-2 to confirm that the
PowerView is reporting the correct information.
Table 7-2 Symmetra
TM
Power Module/Frame Capacities
The power status screen also displays the actual level of fault
tolerance, the number of power modules installed in the
frame, and the number of bad power modules.
Fault Tolerance: The actual fault tolerance indicates the num-
ber of functioning power modules in the Power Array, minus
the number required to power the load. (i.e., If a load is 6kVA,
two modules are required. If five power modules are installed,
the fault tolerance will read N+3.) After this screen has been
reviewed, press the Enter key. The alarm threshold status
screen appears.
Chapter 7 - Configuring & Operating the Symmetra
TM
7-3
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