Installation and operating manual
(PVI-3.8/4.6-I-OUTD Rev.: 1.5)
4
COMMISSIONING AND SWITCHING OFF THE INVERTER
WARNING: do not place any items of any sort on top of AURORA during
operation.
WARNING: do not touch the heart sink when the inverter is operating as
some parts may be extremely hot.
4.1
Start-up procedure
To start the inverter and interact with the display using the keypad, a minimum voltage
of 130Vdc is necessary on at least one of the DC INPUTS.
WARNING: The AURORA inverters are designed to be supplied by
sources of limited current (solar panels). It is thus recommended not to use
sources that may supply sudden peaks of current capable of damaging the
circuitry (for example, batteries).
Should the DC source (panel) be unavailable, it is possible to force the start-up of the
display for brief periods by supplying it from the grid (see paragraph 4.2).
Depending on the DC input voltage present, the inverter will behaves as follows:
a) When the inverter is switched off, it starts up as soon as an input voltage
value of 130V is reached.
b) The inverter displays the message "Awaiting Sun" until the input voltage
exceeds the set Vin start value (see paragraph 5.5.6.8).
c) When the Vin start value is exceeded, the inverter displays the message "Vac
absent" if the grid is not connected, whereas if the grid is present the inverter
connects to it.
d) The inverter will stay connected to the grid if the input voltage is between
70% of the set Vin start value and 520 Vdc. If the input voltage is outside this
range, the inverter disconnects from the grid.
Page 41 of 95