Sungrow SG2K-S, Руководство пользователя

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5 Electrical Connection User Manual
32
4. Check for polarity correctness.
The inverter will not function properly if any PV polarity is reversed.
5.6.3 Installing the PV Connector
Connect the inverter to PV strings according to the following procedure.
1. Rotate the DC switch to “OFF” position.
ON
OFF
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.
480.0
.
0
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 in place, and SUNGROW shall not be held liable for any
damage caused.