GB
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:
LEDs on the front panel
Green LED flashes three times per second
Stop:
The Sunny Boy is changing its operating condition or is in
a manually initiated condition.
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.
Red LED flashes constantly
Isolation failure:
Earth fault of the PV-panels or failure of surge voltage pro-
tection (thermally monitored varistors).
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.
All LEDs off
Standby (night):
The input voltage is below 70 V and not yet sufficient for
normal operation.
LED off
LED off
LED off
LED on
LED
LED on
LED on
All LEDs on
Initialization:
The input voltage is not yet sufficient for normal opera-
tion.
1 s
1 s
1 s
LED off
LED off
LED on
not relevant
not relevant
1 s
1 s
1 s
LED off
LED off
LED aus
not relevant
not relevant
LED on
LED aus
not relevant
not relevant
1 s 1 s 1 s
