Sungrow SG30CX User Manual page 48

5 Electrical Connection
step 2 Check the cable connection of the PV string for polarity correctness and ensure that the
open circuit voltage in any case does not exceed the inverter input limit of 1,100V.
step 3 Connect the PV connectors to corresponding terminals until there is an audible click.
Check the positive and negative polarity of the PV strings, and connect the
•
PV connectors to corresponding terminals only after ensuring polarity
correctness.
Arc or contactor over-temperature may occur if the PV connectors are not
•
firmly connected in place, and SUNGROW shall not be held liable for any
damage caused due to this operation.
step 4 Follow the foregoing steps to connect PV connectors of other PV strings.
step 5 Seal any unused PV terminal with a terminal cap.
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User Manual