Sunsynk hybrid 8kW inverter, using the Sunsynk Connect App on Android phone: Referring to Equipment/Settings/Grid Settings. I wanted to change the Reconnect time to 600 (5 minutes) but would not save the change as a whole lot of settings are currently set as "0", ie. Normal Ramp Rate, Reconnect Ramp rate, Low frequency, High frequency, Low voltage, and whole lot of others as well. Off course I can simply change the Reconnect time on the Inverter (which I will do now - the other settings does not appear on the Inverter). It will be good if someone in the know can post the recommended numbers for the Grid Settings (South Africa), not knowing what the impact of not setting the numbers or having set numbers outside the range.