Sunny Boy 1800U
Installation and Operator’s Manual
SB2500U-11:NE
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32
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SMA Regelsysteme GmbH
Blinking code 2: Grid Failure
3 s 1 s 1 s
5 s
3 x
Operation
Earth Fault
Failure
3 s 1 s 1 s
5 s
3 x
The yellow failure indication LED is on for 5 seconds, is out for 3 seconds and then blinks
twice. The code is sent three times.
If the failure persists the indication blinking code is repeated.
The Sunny Boy is indicating a failure which has one of the following reasons:
•
Low grid voltage ( < V
AC min
see table 9.2)
•
High grid voltage ( > V
AC max
see table 9.2)
•
Low grid frequency (< f
AC min
see table 9.2)
•
High grid frequency ( > f
AC max
see table 9.2)
•
Drastic grid frequency change
Check the utility (check the function of other electric consumers) and check the fuse of
the mains connector to the Sunny Boy.
NOTE:
Have the grid connection to the Sunny Boy checked by a qualified
electrician. Check the correct connection and the fuse in the Sunny Boy.
WARNING: Do not forget to disconnect the Sunny Boy from the grid.
Before opening the device read chapter 4.4.
