3 grid support, Grid support, Vctlmax – SMA SC 500HE-20 User Manual
Page 97: Vctlmaxtm, Vctlhlim, Vctlhlimtm, Vctlllim, Vctlllimtm, Vctllllim, Vctllllimtm
SMA Solar Technology AG
12 Parameters
Operating Manual
SCxxxHE-20-BE-BEN111210
97
12.1.3 Grid Support
HzCtlllLim
Threshold value for
underfrequency
level 2
country-specific
country-
specific
HzCtlllLimTm
Tripping time for
underfrequency
level 2
0 ms …
1 000 000 ms
100 ms
HzCtlMin
Threshold value for
underfrequency
level 3
country-specific
country-
specific
HzCtlMinTm
Tripping time for
underfrequency
level 3
0 ms …
1 000 000 ms
100 ms
*
These parameters can only be changed if the installer password is entered.
Name
Description
Value/Range
Explanation
Default
value
FRTEna
*
*
These parameters are only visible after the installer password has been entered.
Enable dynamic grid
support
Off
Deactivated
On
On
Activated
FRTArGraNom
Scaling of the k-factor
for LVRT
1 … 10
country-
specific
Enable island grid
detection
Off
Deactivated
country-
specific
On
Activated
TrfVolExlHi
**
**
These parameters can only be changed after the installer password has been entered.
Line-to-line voltage on
the overvoltage side
of the external
transformer
1 V… 70 000 V
20 000 V
TrfVolExlLo
Line-to-line voltage on
the undervoltage side
of the external
transformer
1 V … 40 000 V SC 500HE-20
270 V
SC 630HE-20
315 V
SC 720HE-20
324 V
SC 760HE-20
342 V
SC 800HE-20
360 V
Name
Description
Range
Explanation
Default
value