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4.4.2 Hoisting Transport...............................................................................28

4.5 Installing Mounting-bracket............................................................................29

4.5.1 PV Bracket-Mounted Installation ..........................................................30

4.5.2 Wall-Mounted Installation.....................................................................31

4.6 Installing the Inverter.....................................................................................32

5 Electrical Connection .....................................................................................34

5.1 Safety Instructions ........................................................................................34

5.2 Terminal Description .....................................................................................36

5.3 Electrical Connection Overview .....................................................................37

5.4 Crimp OT/DT terminal...................................................................................39

5.5 External Protective Grounding Connection .....................................................40

5.5.1 External Protective Grounding Requirements ........................................41

5.5.2 Connection Procedure.........................................................................41

5.6 AC Cable Connection ...................................................................................41

5.6.1 AC Side Requirements ........................................................................41

5.6.2 Requirements for OT/DT Terminal ........................................................43

5.6.3 Connection Procedure.........................................................................44

5.7 DC Cable Connection ...................................................................................46

5.7.1 PV Input Configuration ........................................................................48

5.7.2 Assembling PV Connectors .................................................................49

5.7.3 Installing PV Connector .......................................................................51

5.8 Communication Junction Box ........................................................................52

5.9 Communication Wiring Board ........................................................................53

5.10 RS485 Connection......................................................................................53

5.10.1 Interface Description .........................................................................53

5.10.2 RS485 Communication System..........................................................54

5.10.3 Connection Procedure(Terminal Block) ...............................................56

5.10.4 Connection Procedure (RJ45 Ethernet Port)........................................57

5.11 Dry Contact Connection ..............................................................................59

5.11.1 Dry Contact Function .........................................................................59

5.11.2 Wiring Procedure...............................................................................62

5.12 DRM Connection（For Countries “AU” and “NZ”）........................................62

5.12.1 DRM Function...................................................................................62

5.12.2 Connection Procedure.......................................................................63

5.13 Communication Module Connection (optional) ..............................................65

6 Commissioning ...............................................................................................66

Sungrow SG30CX User Manual

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