LEDs on the front panel
The LEDs on the lid display the operating state the Sunny
Boy is in. For details please refer to the Sunny Boy 1100E
Technical Description. Description of the symbols used in the
following section:
LED off
LED off
LED off
LED on
LED on
LED
LED on
1 s
1 s
LED off
LED off
not relevant
LED on
not relevant
1 s
1 s
LED off
LED off
LED on
not relevant
not relevant
LED aus
1 s 1 s 1 s
not relevant
not relevant
LED aus
1 s
1 s
All LEDs off
Standby (night):
The input voltage is below 70 V and not yet sufficient for
normal operation.
All LEDs on
Initialization:
The input voltage is not yet sufficient for normal opera-
tion.
Green LED flashes three times per second
Stop:
The Sunny Boy is changing its operating condition or is in
a manually initiated condition.
Red LED flashes constantly
Isolation failure:
Earth fault of the PV-panels or failure of surge voltage pro-
tection (thermally monitored varistors).
Green LED flashes once per second
Waiting, checking grid:
Starting conditions are being checked.
Green LED flashes constantly
Operation:
Feeding grid, MPP or constant voltage mode.
Green LED is off once a second
Derating:
The Sunny Boy has detected an internal overtemperature
due to temporary overload and is derating the output po-
wer in order to avoid internal damage.