SMA Sunny Boy 2500 Instrucciones De Instalacion Cortas página 9

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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 2500
Technical Description. Description of the symbols used in the
following section:
LED off
LED blinks once per second
LED blinks fast (ca. three times per second)
LED is constantly on
not relevant
Standby (night): The input voltage is below
approx. 85 V and not yet sufficient for nor-
mal operation.
Initialization: The input voltage is not yet
sufficient for normal operation.
Stop: The Sunny Boy is changing its opera-
ting condition or is in a manually initiated
condition.
Failure:
internal or external failure, exact descrip-
tion depending on blink code
Blink codes for failures
Grid failure: The Sunny Boy displays a grid failure if the
grid frequency, grid voltage or the change of the grid fre-
quency are out of the tolerable range.
Input voltage too high:
The Sunny Boy displays this blinking code if the PV input
voltage is above 600 V. Disconnect the grid and then the
PV-panels from the Sunny Boy immediately to prevent da-
mage!
B e t r i
S W R
2 5 0 0
e b
Ph ot
ov ol
ta ik-
O p e
Ph ot
ov ol
St rin
ta ic
gw ec
str in
hs elr
r a t i o
g in ve
ich ter
rte r
n
E r d s
c h l u s
E a r t h
s
F a u l
t
S t ö r u
n g
F a i l u
r e
Waiting, checking grid:
Starting conditions are being checked.
Operation: feeding grid, MPP or constant
voltage mode
Isolation failure: earth fault of the PV-panels
or failure of surge voltage protection (ther-
mally monitored varistors)
Grid impedance too high:
The Sunny Boy has detected a failure based on non-per-
missible grid impedance values measured by the MSD.
Device failure:
The Sunny Boy is in a condition that makes it impossible to
return to normal operation. It has to be checked by a qua-
lified technician.
Be tri
eb
O pe
ra tio
n
Er ds
ch lu ss
Ea rth
Fa ul
t
St ör un
g
Fa ilu
re

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