Power One AURORA PVI-OUTD-US Series Installation And Operator's Manual page 58

Installation and Operator's Manual
(PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1)
NOTE: Inverter status is indicated by the corresponding LED turning to a
steady on condition or flashing, and by a display message that provides a
description of the existing operation or fault condition (see the following
sections).
G 1) Nighttime mode
Aurora disconnected during nighttime; this occurs when input power is
Y
too low to feed the inverter.
R
G 2) Aurora initialization and grid check
Initialization is in progress: input power sufficient to feed the inverter;
Y
Aurora is verifying start-up conditions (for instance: input voltage value,
R
insulation resistance value, etc.) and a grid check routine is launched.
G 3) Aurora is feeding the grid
After completing a set of electronics and safety auto-test routines, the
Y
inverter starts the grid connection process.
R
As mentioned above, during this stage Aurora automatically tracks and
analyzes the maximum power point (MPPT) of the photovoltaic field.
G 4) Ground insulation fault
Aurora indicates that insulation resistance was found to be too low.
Y
This may be due to an insulation fault in the connection between the
R
photovoltaic field inputs and the ground.
What to do after an insulation defect has been found:
When the red LED turns on, try to reset the fault indication by pressing
the multi-function ESC key at the side of the display. If the Aurora
reconnects to the grid, the fault was due to a transient event (such as
condensation and moisture getting into the panels). If this trouble
occurs frequently, have the system inspected by a specialized
technician.
If Aurora does not reconnect to the grid, open both the AC and DC
disconnect switches to place the Aurora into a safe condition and
contact an authorized service center to have the system repaired.
WARNING: Shock hazard! Do not attempt to correct this fault
yourself. The instructions below have to be followed very carefully. In
case you are not experienced or skilled enough to work safely on the
system, contact a specialized technician.
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