Messages
SMA
Technologie AG
62
SB40TL_50TL-IEN081211
Installation Guide
11
< Installation fault >
Second phase connected to N.
•
Correct the connection as
described in section 6.2
„Connection to the Public Grid
(AC)” (Page 28).
33
< Unstable operation >
The supply at the DC input of the Sunny Boy
is not sufficient for stable operation.
•
Wait for greater radiation.
•
If this occurs again at medium
radiation, check the PV system
design or correct connection of the
PV generator.
34
< DC overvoltage >
The DC input voltage at the Sunny Boy is
too high.
•
Disconnect the Sunny Boy from
the PV generator immediately
as described in section 8.1
„Opening the Sunny Boy”
(Page 49)! Otherwise, the
Sunny Boy could be irreparably
damaged!
•
Check the DC voltage of the strings
to ensure that they comply with the
maximum input voltage of the
Sunny Boy before connecting the
Sunny Boy to the PV generator
again.
35
< Ground fault >
The Sunny Boy has detected a ground fault
in the PV generator.
•
Check the strings for ground faults,
as described in section 12.1
„Ground Fault Monitoring” (Page
67).
•
Have the PV generator installation
engineer fix the ground fault before
you can reconnect the string in
question.
No
Cause
Remedy
Summary of Contents for SUNNY BOY 4000TL
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