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. 5 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.
An IPC error is displayed during a firmware update?
The display of an IPC error during a firmware update is normal (IPC - Internal Process Communication). The processors cannot communicate with each other during the firmware update.
How can the Modbus interface be tested on Sunny Island?
Test the function of the Modbus interface with a Modbus program. Query simple registers (e.g. serial number). Tip: Record the settings in the Modbus program and the queried registers (e.g. with screenshots). The Service requires this information in order to be able to help you in a targeted matter.