SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
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Troubleshooting SMA Solar Technology AG<br />
20.9 Troubleshooting<br />
Answers are provided below for faults that may occur in practice:<br />
Why does the <strong>Sun</strong>ny Island not connect to the running generator?<br />
• Is the fuse on the generator ok?<br />
• Has the power which is allowed to be fed back into the generator during the permissible time<br />
been exceeded ("233.14 GnRvTm" parameter)? If yes, "!" is displayed. Generator connection<br />
is blocked for the set time. Set the "540.02 GnAck" parameter to Ackn.<br />
• If the generator control relay (GnReq) is open has the generator been started manually<br />
("234.07 GnStrMod" parameter)? Change the setting to autostart, if required.<br />
• Is a GenMan used in the system?<br />
– Check the return signal (DigIn)<br />
– The generator can only be started manually using GenMan.<br />
Why is the display of the <strong>Sun</strong>ny Island dark and why is nothing shown on the<br />
display?<br />
• Is the DC circuit breaker on the <strong>Sun</strong>ny Island set to "On"? In this case, the device has switched<br />
off to protect the batteries from deep discharge (see also section 13.3 ”State of Charge / SOC<br />
and SOH” (page 98)). To restart the <strong>Sun</strong>ny Island, see section 9.5 ”Reactivating the Device<br />
Following Automatic Shutdown” (page 64).<br />
• The external battery fuse may have been tripped.<br />
Why is it not possible to change the parameters?<br />
• Has the installer password been entered correctly? Check whether you are actually in "Installer<br />
Level" (see section 10.5 ”Entering the Installer Password” (page 76)). If necessary, repeat the<br />
calculation and entry of the password.<br />
• You are in the "100-Meters" (measuring data) menu or the "300-Diagnose" (diagnosis) menu.<br />
You can only read the data values shown here.<br />
• Some parameters can only be changed in standby mode or in the QCG (see for example the<br />
parameter "234.07 GnStrMod" in section 19.2 ”Adjustable Parameters” (page 158)).<br />
Stop the <strong>Sun</strong>ny Island as described in section 9.2 ”Stopping the <strong>Sun</strong>ny Island (Standby)”<br />
(page 63). Note that this causes a dropout in the stand-alone grid system and the loads are no<br />
longer supplied.<br />
Why does the <strong>Sun</strong>ny Island connect to the running generator only for a short<br />
time?<br />
• The limits for the maximum permissible AC voltage or the minimum permissible frequency of the<br />
generator are too strict (parameter in the menu "233# Generator Control"). Change voltage<br />
and/or frequency limiting values while observing the technical data for your generator.<br />
210 SI<strong>5048</strong>-TB-TEN110340 <strong>Technical</strong> <strong>Description</strong>