Independent or parallel input channels configuration
All versions of the inverter are equipped with two input channels (therefore
with double maximum power point tracker MPPT) independent of each
other, which can however be connected in parallel using a single MPPT.
Strings of photovoltaic modules having the same type and number of
panels in series must be connected to each single channel; they must
also have the same installation conditions (in terms of orientation to the
SOUTH and inclination from the horizontal plane).
When connecting the two input channels in parallel, the aforesaid re-
quirements must be observed with the benet of being able to use the full
power that can be supplied by the inverter on a single channel.
Whereas the double MPPT structure allows the management of two pho-
tovoltaic generators that are independent of each other (one for each
input channel) and can differ from each other in installation conditions,
type and number of photovoltaic modules connected in series. A neces-
sary condition so that the two MPPTs can be used in independent mode
is for the photovoltaic generator connected to each of the inputs to have
a power lower than the power limit of the single input channel and a
maximum current lower than the current limit of the single input channel.
All the input parameters that must be observed for correct operation of the inverter are shown
in the “technical data” table.
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