Technical FAQs 4

What is the PV string access type?

The PV string access type can be identified only when the inverters restore to the non-power limiting state and the current of all connected PV strings reaches Startup current. After setting parameters, you can view the string access status on the Running Info screen.

How to enable PV string access detection?

PV string access detection is set to Disable by default. After the inverter connects to the power grid properly, set this parameter to Enable. When the current of all connected PV strings reaches the preset value, the PV string access detection function is enabled. Startup current = I sc (S tc) x 0.6 (rounded up).

What is a string inverter?

String inverters are commonly used in residential and smaller commercial installations. Wide bandgap semiconductors like Silicon carbide (SiC) and Gallium nitride (GaN) allow to operate converters at higher switching frequencies which allows use of smaller magnetic components and in turn drive power density of these systems up.

What happens if the PV access type is not identified?

If the PV access type is not identified, the PV status will be displayed as Not connected. The PV string access type can be identified only when the inverters restore to the non-power limiting state and the current of all connected PV strings reaches Startup current.

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