Installation manual

46
OperatingthePVinverter
At any time, while you are viewing one of the 4 grid setting windows, you are able to switch off the
power disconnection device by simultaneously pressing the up and down buttons and holding for
more than 5 seconds.
See the tables below for the LVD/MVD allowed parameter ranges according to the regulations:
When the selected grid is LVD, the following adjustable vaules are allowed:
Parameter Nameindisplay Adjustablevalues
Rise-in-voltage protection U> Umax 110 ... 115%
As dened in VDE AR N 4105, only the rise-in-voltage protection Umax shall be designed as
10-minute running mean value protection which prevents the upper voltage limit specied in DIN
EN 50160 from being exceeded (monitoring over the power).
When the selected grid is MVD, the following adjustable values are allowed:
Parameter Nameindisplay Adjustablevalues Recommendedby
MVD
Rise-in-voltage protection U>> Crit. Umax 1.00 ... 1.30 U
n
1.20 U
ns
Under-voltage protection U< Umin 0.10 ... 1.00 U
n
0.80 U
ns
Under-voltage protection U<< Crit. Umin 0.10 ... 1.00 U
n
0.45 U
ns
Rise-in-frequency protection f> Fmax 50.0 ... 52.0 Hz 51.5 Hz
Under-frequency protection f> Fmin 47.5 ... 50 Hz 47.5
Delay time for U< tUmin 1.5 ... 2.4 s 1.5 ... 2.4 s
6.1.2 SPIdevice
The SPI is a system interface protection device for use in Italy. There is no internal SPI required
for this inverter but an external SPI device may be requested. Care must be taken so disconnec-
tion settings on the inverter are set so they do not interfer with external SPI device disconnection
settings. The password “5555” entered in the Install Settings page when Italy is selected as the
Country, enables disconnection parameters to be adjusted directly within the grid settings menu.