SMA Solar Technology AG
84
SB50US-80US-IUS094030
Installation Guide
The following parameters appear in parameter list but cannot be modified:
T-Start
s
5 ... 1600
10
Installer
The time the inverter waits to connect
to the grid after Vpv-Start is
exceeded.
This value defaults to 5 minutes after
a utility fault.
T-Start-Fan
°C
0 ... 100
70
Installer
Fan turn-on temperature at minimum
rotating speed.
T-Stop
s
1 ... 1800
2
Installer
The time that the Sunny Boy waits to
disconnect from the grid when Pac
falls below minimum necessary Vpv.
T-Stop-Fan
°C
0 ... 100
55
Installer
Fan turn-off temperature
V-Const Setval
V
SB 5000US -
SB 7000US:
250 ... 600
SB 8000US:
300 ... 600
600
Installer
PV Setpoint voltage for constant
voltage operation. These
parameters only are important in
case the parameter “Operating
Mode“ is set to “V-const“.
Vac-Min*
%
0 ... 50
12
Installer
Values are used to calculate the
lower limit of allowable AC voltage.
Default value is optimal for
installations < 30 kW. The default
12 results in a trip value of 88 % as
listed under trip limits.
Vac-Max*
%
0 ... 20
10
Installer
Values are used to calculate the
upper limit of allowable AC voltage.
Default value is optimal for installa-
tions < 30 kW. The default 10
results in a trip value of 110 % as
listed under trip limits.
Vac-Min-Fast*
%
0 ... 50
50
Installer
Values are used to calculate the
lower limit of allowable AC voltage
for fast disconnection. Default value
is optimal for installations < 30 kW.
The default 50 results in a trip value
of 50 % as listed under trip limits.
Vac-Max-Fast*
%
0 ... 20
20
Installer
Values are used to calculate the
upper limit of allowable AC volt-
age for fast disconnection. Default
value is optimal for installations
< 30 kW. The default 20 results in
a trip value of 120 % as listed
under trip limits.
Vac-Min-Recnet
%
0 ... 50
11.7
Installer
Values are used to calculate the
lower and upper limits to reconnect
to the grid after a grid frailure.
Vac-Max-Recnet
%
0 ... 20
5.83
Installer
Vpv-Start
V
SB 5000US -
SB 7000US:
250 ... 600
SB 8000US:
300 ... 600
SB 5000US -
SB 7000US:
300
SB 8000US:
365
Installer
Minimum DC voltage for the Sunny
Boy to connect to the grid.
Name
Unit
Range
Default
Password
Level
Description
