Installation and Operation Manual Page 40 of 104
(PVI-3.8/4.6-I-OUTD-US Rev.: 1.1)
If the parameters are within the operating range defined in the specification, close and
secure the inverter and the Switch Box covers and follow the instructions in section 4,
“START-UP”.
3.3.5.2 Installation of -US-xx models
WARNING: For -US-xx models, before performing any operation on the
Inverter power input, ALWAYS perform the disconnection procedure as
explained in section 3.3.2 of this manual.
Step 1: Disconnect from the AC Grid by turning off the"AC Bipolar Switch" – Part
"D" in Fig. 10.
Step 2: Remove the Inverter cover as described in section 3.3.3 and connect the DC
cable to the terminal block on the PCB. Be sure respecting marking (+In1, -In1, +In2, -
In2) and carefully check the correct polarity of the DC cable.
Step 3: Connect the AC cable by following the instructions in section 3.3.7. Refer to
Table CN-01 "AC Grid Connection"
Step 4 (optional): Connect the signal cable. Screw the cable to the appropriate
connector counterpart present in the mounting kit and connect it inside the inverter.
Step 5: Remove the cover from the photovoltaic panel or wait for the sun to irradiate
the panel
3.3.6 Possible Aurora DC Input Configuration
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.
The Aurora inverter can be configured with an independent MPPT for each DC input
channel or with the 2 input DC channels connected in parallel with one MPPT. If the
inverter is configured with 2 independent MPPTs, the max current for each channel
shall not exceed 14 Adc for PVI-4.6-I-OUTD, 12.5 Adc for PVI-3.8-I-OUTD and the
power input for the single channel shall not exceed 3 kW.
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