Installation and Operation Manual Page 42 of 104
(PVI-3.8/4.6-I-OUTD-US Rev.: 1.1)
3.3.6.2 Parallel Connection of the Aurora DC inputs (default set-up)
WARNING: Before performing any operation on the Switch Box power
input or on the Inverter, ALWAYS perform the disconnection procedure as
explained in section 3.3.1 or 3.3.2 of this manual.
WARNING: When the current from the photovoltaic array exceeds 14 Adc
(PVI-4.6-I-OUTD), 12.5 Adc (PVI-3.8-I-OTD), when the array power
exceeds the limit for the single channel (see table in 8.1 paragraph) OR
when there is a consistent unbalance of the power between two arrays, it is
necessary to parallel the 2 inputs.
WARNING: When the inverter is configured with parallel input the current
to the 2 input terminals in the Switch Box shall be equally distributed in such
a way to limit to 14 Adc (PVI-4.6-I-OUTD), 12.5 Adc (PVI-3.8-I-OTD).
To parallel the 2 inputs, 2 AWG10 cables should be used to connect the terminal block
–IN1 and –IN2, and +IN1 and +IN2 as shown in Fig. 16 (1 black and 1 red cable)
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