Rs485 Communication System - Sungrow SG5KTL-MT User Manual

5 Electrical Connection
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.
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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5.6 RS485 Communication System

As for one inverter, an RS485 cable can guarantee the communication connection.
Prepare communication cable before communication connection.
RS485 communication cables should be:
Shielded cables or Shielded Ethernet cables.
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Applicable to outdoor installation.
•
A converter such as Data Logger is needed to convert signal between inverter
and PC.
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User Manual