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Step 4 Check for correct polarity.
The inverter will not function properly if any PV polarity is reversed.
-- -- EEnndd
5.6.3 Installing the PV Connectors
Step 1 Rotate all the DC switches to "OFF" position.
Skip performing step1 when the actual device is not equipped with DC
switches.
Step 2 Check the cable connection of the PV string for correct polarity and ensure that the
open circuit voltage in any case does not exceed the inverter input limit of 1,000V.
Step 3 Connect the PV connectors to corresponding terminals until there is an audible click.
User Manual 5 Electrical Connection
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