SMA SUNNY BOY 3000-US Installation Manual page 71

SMA America, LLC
Name Description
Vac-Max* Additional monitoring of
the AC voltage
The value is used to
calculate the upper limit of
the permissible AC
voltage.
The standard value is
optimal for plants
˂ 30 kW. The standard
value of 10% results in a
trip value of 110%, as the
list of trip limits shows
(see Section 12.6).
Vac-Min-Fast* Additional monitoring of
the AC voltage
The value is used to
calculate the lower limit of
the permissible AC
voltage. The standard
value is optimal for plants
<30 kW. The standard
value of 50% results in a
trip value of 50%, as the
list of trip limits shows.
Vac-Max-Fast* Additional monitoring of
the AC voltage
The value is used to
calculate the upper limit of
the permissible AC
voltage. The standard
value is optimal for plants
<30 kW. The standard
value of 20% results in a
trip value of 120%, as the
list of trip limits shows.
Vac-Min-Recnet The value is used to
calculate the lower limit
that is required for
reconnecting to the power
distribution grid after a
grid failure.
Installation Manual
Value/range Explanation
0% to 20%
0% to 50%
0% to 20%
0% to 50%
SB30-40-US-IA-en-33
10 Troubleshooting
Default
value
10%
50%
20%
11.7%
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