Questions Regarding the Sunny Island

Why is the Sunny Island not switching off even though I have opened the load-break switch of the battery fuse?

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 ( > Charging the Lead-Acid Battery After Automatic Shutdown (Emergency Charge Mode)).

  • 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.