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

SMA Solar Technology AG Troubleshooting
Why does the error F117 (AC voltage too high) also occur when the Sunny Island
is started?
• A permanent short-circuit exists in the stand-alone grid system. Check the AC output connections
of the stand-alone grid system (see section 6.3 ”AC Connection” (page 36)).
• The loads connected to the stand-alone grid system are too heavy. The power/electrical energy
of the Sunny Island is not sufficient to supply the loads. Switch off some of the loads and restart
the Sunny Island.
What do I do when a battery cell can no longer be used?
• Remove the unusable cell from your battery bank. Start the Sunny Island and change the battery
voltage in the QCG under "New Battery".
What can I do when the QCG does not run?
• Switch off the Sunny Island (see section 9.3 ”Switching Off” (page 64)) and restart it
(see section 9.1 ”Switching On” (page 62)).
What can I do when "MMC operation failed" appears on the display?
• You wanted to perform an action using the SD card, but it failed (see section 10.9 ”Display of
Warnings and Failures” (page 82)). Check the card (on your PC/laptop) and use a new
SD card, if necessary.
Why does my Sunny Island stay on even though I switched the DC circuit breaker
to Off?
• Your Sunny Island may be powered by the AC side. Switch off all AC consumers and disconnect
them from the Sunny Island (see section 9.4 ”Disconnecting the Device from Voltage Sources”
(page 64)).
Why is my battery discharging even though the generator is running?
• The power produced by the generator does not reach the Sunny Island. Check the voltage and
frequency values. The fuses on the generator may have been tripped.
• The consumer power exceeds the generator power "234.03 GnCurNom".
– Check error messages Find the cause.
Why is the deactivation defined by the SOC in case of a full or equalization
charge and generator start in the second time zone?
• The equalization charge has a higher priority than silent time.
Why is the SOC not at 100 %, even after completion of a full charge?
• Set a longer absorption period.
How is it possible to ensure that the maximum battery charging current is
correctly calculated after a reinstallation of the battery current sensor?
• Recalibrate the battery current sensor using the "225.04 BatCurAutoCal" parameter with the
setting "Start".
Technical Description SI5048-TB-TEN110340 211