SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.

SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd. SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.

20.01.2013 Views

Additional Functions SMA Solar Technology AG 12.2 Sleep Mode Using the "250.10 SleepEna" parameter set to "Enable" allows the sleep mode to be activated in single-phase grids, which the master uses to switch off the slaves when the power value allows this. Sleep Mode The "Sleep Mode" works exclusively in stand-alone grid operation! The values for connection and disconnection of the Sunny Island are already set at the factory (optimized in terms of efficiency). 12.3 Time-Controlled Operation The Sunny Island can be operated in a time-controlled manner using a timer function (like a clock timer), supplying power at a planned point in time. To do this, this function must be activated by using the "510.02 InvTmOpEna" parameter. Using the "510.03 InvTmOpStrDt" parameter, you can specify the starting date, and using the "510.04 InvTmStrTm", you specify the starting time. With the parameter "510.05 InvTmOpRnDur", you set the running time and with the parameter "510.06 InvTmOpCyc", you determine whether this function will be carried out once, every day or weekly, at or from the specified start time (date and time). 94 SI5048-TB-TEN110340 Technical Description

SMA Solar Technology AG Additional Functions 12.4 Overload and Short-Circuit Behavior The Sunny Island can be temporarily operated under overload conditions. It can also supply shortcircuit currents. In case of overload, the Sunny Island supplies an output of 6 500 W for 30 minutes and can supply 7 200 W for 5 minutes. The device can even supply 8 400 W of output power for one minute. In the event of a short circuit, the Sunny Island provides a maximum current of 100 A (for 100 ms). This is sufficient to trip commercial 16 A B-type circuit breakers. 12.5 Device Faults and Autostart If a critical fault occurs, the Sunny Island automatically shuts down and displays the reason on the display. If the autostart function is activated ("250.01 AutoStr" parameter), the Sunny Island can confirm the failure automatically and restart on its own. If the failure persists, the Sunny Island cannot be started. Automatic start meter If the autostart meter has counted down to 0, the Sunny Island waits for 10 minutes before attempting to restart automatically. Displaying messages Messages can be displayed at any time while the device is in operation and they have priority over the "Home Screen" display. 12.6 Automatic Frequency Control (AFC) Clocks that depend on the stability of the grid frequency for their accuracy become increasingly inaccurate when there are constant frequency deviations. Frequency fluctuations, i.e., deviations from the nominal frequency occur, for example, in stand-alone grid systems that operate with a diesel generator. The "Automatic Frequency Control (AFC)" function of the Sunny Island allows the use of grid-coupled clocks in these types of stand-alone grid systems. This function is activated using the "250.11 AfraEna" parameter. The time deviation is compensated on average. Quartz-controlled clock in the Sunny Island The internal clock in the Sunny Island is quartz-controlled and thus operates correctly (within the tolerance limits). The adjustment refers to externally connected clocks that depend on the grid frequency. Technical Description SI5048-TB-TEN110340 95

Additional Functions SMA Solar Technology AG<br />

12.2 Sleep Mode<br />

Using the "250.10 SleepEna" parameter set to "Enable" allows the sleep mode to be activated in<br />

single-phase grids, which the master uses to switch off the slaves when the power value allows this.<br />

Sleep Mode<br />

The "Sleep Mode" works exclusively in stand-alone grid operation! The values for<br />

connection and disconnection of the <strong>Sun</strong>ny Island are already set at the factory<br />

(optimized in terms of efficiency).<br />

12.3 Time-Controlled Operation<br />

The <strong>Sun</strong>ny Island can be operated in a time-controlled manner using a timer function (like a clock<br />

timer), supplying power at a planned point in time.<br />

To do this, this function must be activated by using the "510.02 InvTmOpEna" parameter. Using the<br />

"510.03 InvTmOpStrDt" parameter, you can specify the starting date, and using the<br />

"510.04 InvTmStrTm", you specify the starting time. With the parameter "510.05 InvTmOpRnDur",<br />

you set the running time and with the parameter "510.06 InvTmOpCyc", you determine whether this<br />

function will be carried out once, every day or weekly, at or from the specified start time (date and<br />

time).<br />

94 SI<strong>5048</strong>-TB-TEN110340 <strong>Technical</strong> <strong>Description</strong>

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