What is the function of "Arc Check" in my Smart G2 iniverter settings?

It is used to detect the arcing of the DC side and cuts the circuit in time to protect the user and the electrical system. The arc module of the series inverter meets the requirements of IEC 63027.
The user can do settings about arc detection here, there are five items: Arc Enable, Arc Clear, Arc Self Check, Arc Version and Arc Threshold.
Select Enable in Arc Enable, the inverter will report Arc Fault when faults are detected. When it is disabled, there won't be any reports even when faults occured.
When Yes in Arc Clear is selected, the inverter will clear the arc fault immediately and restart the system. This kind of manual clear can be valid for three times a day. When it is disabled by default, the inverter will automatically clear the arc fault in five minutes and five times at most in a day.
Select Enable in Arc Self Check, the inverter will self-check whether the arc detection function is working normally and return to Disable after the checking process is completed.