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step 4 Check for polarity correctness.
If the PV polarity is reversed, the inverter will be in a fault or alarm state and will
not operate normally.
- - End
5.6.3 Installing the PV Connectors
step 1 Rotate the DC switch to "OFF" position.
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 600 V.
step 3 Connect the PV connectors to corresponding terminals until there is an audible click.
step 4 Seal the unused PV terminals with the terminal caps.
User Manual 5 Electrical Connection
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