Installing The Pv Connector - Sungrow SG2K-S User Manual

5 Electrical Connection
3. Lead the cable through cable gland, and insert into the insulator until it
snaps into place. Then tighten the cable gland (torque 2.5 Nm to 3 Nm).
Crimp Contact
Cable Gland
4. Make sure that the cable polarity of each PV string is correct before
connecting it to the inverter.
The inverter will not function properly if any PV polarity reversed.
If the PV connectors are not assembled into place, it may cause an arc
or overheat. The loss caused by this issue will void the warranty.

5.4.3 Installing the PV Connector

Connect the inverter to PV strings according to the following procedure.
1. Rotate the DC switch to "OFF".
2. Check the connection cable of the PV string for the correct polarity and
that the open-circuit voltage does not exceed the inverter input limit of
600 V, even under the lowest operating temperature. Refer to the module
specification supplied by the module manufacturer for detailed
information.
36
Positive Insulator
Negative Insulator
Crimp Contact
Cable Gland
OFF
ON
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