32
•
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.
-- -- E
En
nd
d
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.
•
Applicable to outdoor installation.
A converter such as Data Logger is needed to convert signal between inverter
and PC.
User Manual
