10.6
Frequently Asked Questions (FAQs)
10.6.1 Questions Regarding the Sunny Island
Why is the Sunny Island not switching off even though I have opened the load-break switch of
the BatFuse?
The Sunny Island may still be supplied from the AC side.
• Switch off all AC sources and disconnect them from the Sunny Island.
Why is the Sunny Island not switching to energy-saving mode?
Another function might have a higher priority than energy saving mode, e.g., equalization charge or full charge.
After automatic disconnection in battery protection mode, the Sunny Island can no longer be
started?
• Charge the battery only when the Sunny Island cannot be switched on (see Section 10.7 "Charging the Battery
After Automatic Shutdown in Off-Grid Systems (Emergency Charge Mode)", page 89).
– Switch off all loads.
– If there is a generator in the system, start the generator manually. When doing so, observe the warm-up time
of the generator. Five minutes without charge current can result in disconnection of the Sunny Island inverter.
– If sufficient power is available from the generator or the AC sources in the stand-alone grid, e.g., sufficient
solar irradiation for PV inverters, switch the Sunny Island on. AC sources in the stand-alone grid can start
feeding in electric current only once the Sunny Island has been started and is in operation.
10.6.2 Questions Regarding the Sunny Remote Control
The display of the Sunny Remote Control is dark and nothing is displayed – why?
The Sunny Island might not be switched on.
• Ensure that the fuse in the BatFuse is not defective and switch on the Sunny Island(see Section 4.1, page 20) .
The Sunny Remote Control might not be connected to the Sunny Island.
• Ensure that the Sunny Remote Control is connected to the Sunny Island.
The RJ45 data cable may be damaged.
• Replace the RJ45 data cable between the Sunny Remote Control and the Sunny Island.
Why can parameters not be changed?
It is possible that the parameter is displayed only in expert mode.
• Switch to expert mode on the Sunny Remote Control (see Section 5.4.1, page 32).
It might be possible to change the parameter only in standby mode or in the QCG.
• Observe the messages in the display (see Section 5.4.6, page 34).
The parameter may be hidden as it is not required in the configuration set for the system.
• Ensure that the configuration does not deactivate any functions which are required.
10 Troubleshooting
SMA Solar Technology AG
Operating Manual
SI30M-44M-60H-80H-BE-en-33
86
Summary of Contents for SUNNY ISLAND 3.0M
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