SMA Solar Technology AG
10 Troubleshooting
Operating Manual
SI80H-BE-BEN120810
59
After automatic disconnection in battery protection mode, the off-grid inverter
can no longer be started?
• Switch all loads off.
• If there is a generator, start the generator manually at the generator. Observe the warm-up
time of the generator. Five minutes without charge current can result in disconnection of the
off-grid inverter.
• If enough 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 off-grid inverter on. AC sources in
the stand-alone grid cannot feed in electric current until the off-grid inverter has been started
and is in operation.
How can I switch between winter and summer operation e.g. for alpine chalets?
• Save two different parameter sets for winter and summer operation on the SD card and load
them in the appropriate season (see Section 6.2 "Saving and Loading
Parameters", page 41).
10.5.2 Questions on the Sunny Remote Control
Why is the display of the Sunny Remote Control dark and why is nothing
displayed?
The off-grid inverter might not be switched on.
• Switch on the off-grid inverter (see Section 5.1).
✖ The off-grid inverter does not switch on?
• If you are a skilled person, ensure that the fuse in the BatFuse is not defective.
The Sunny Remote Control might not be connected to the off-grid inverter.
• If you are a skilled person, ensure that the Sunny Remote Control is connected to the off-grid
inverter.
The RJ45 data cable might be damaged.
• If you are a skilled person, replace the RJ45 data cable between the Sunny Remote Control
and the off-grid inverter.
Why is it not possible to change the parameters?
The parameter might only be shown in expert mode.
• Switch to expert mode (see Section 4.4.2).
The parameter might only be changeable in standby mode or in the QCG.
• Note the messages in the display (see Section 4.4.6 "Setting the Parameters", page 35).
The parameter might be hidden as it is not required in the configuration set for the off-grid
system.
• Check that the configuration does not deactivate any functions which are required.
