Power One AURORA PVI-OUTD-US Series Installation And Operator's Manual page 14

Installation and Operator's Manual
(PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1)
WARNING: To avoid equipment damage, the string voltage must not exceed 600 Vdc
for any reason.
NOTE: A minimum input voltage of 200 Vdc is required for the Aurora
inverter to start the grid connection sequence. Once connected, the inverter
will transfer the maximum available power for any DC input voltage value
within a 90 Vdc to 580 Vdc range to the grid.
The total current of an array must also be within the capability limits of the inverter.
For PVI-4.2 model, the limit is set at 16 Adc maximum for each input, while for PVI-
3.0/3.6 models the limit is set at 10 Adc maximum for each input. The AURORA is
capable of handling 2 separate arrays.
If the output of photovoltaic system exceeds the capacity of a single inverter,
additional Aurora inverters can be added to the system; each inverter will be connected
to an adequate section of the photovoltaic field on the DC side and to the grid on the
AC side.
Each Aurora inverter will work independent of the others and will push the maximum
power available from its own section of the photovoltaic panels to the grid. There are
several factors and considerations to be taken into account when designing
photovoltaic systems, such as the type of panels, available space, location, long-term
target output, etc. The system configurator available on Power-One's web site at
www.power-one.com may help in sizing a photovoltaic system.
Fig. 3 - Simplified Diagram of a Photovoltaic System
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