Sungrow SG125HX, User Manual

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VI
5 Electrical Connection
............................................................................... 23
5.1 Safety Instructions...................................................................................... 23
5.2 Terminal Description................................................................................... 23
5.3 Electrical Connection Overview .................................................................. 24
5.4 Crimp OT/DT terminal................................................................................. 28
5.5 Additional Grounding Connection ............................................................... 29
5.5.1 Additional Grounding Requirements.................................................. 29
5.5.2 Connection Procedure ...................................................................... 29
5.6 AC Cable Connection ................................................................................. 30
5.6.1 AC Side Requirements ...................................................................... 30
5.6.2 Requirements for OT/DT Terminal ..................................................... 32
5.6.3 Connection Procedure ...................................................................... 32
5.7 DC Cable Connection ................................................................................. 37
5.7.1 PV Input Configuration ...................................................................... 37
5.7.2 Assembling the PV Connectors ......................................................... 38
5.7.3 Installing the PV Connector ............................................................... 39
5.8 Communication Junction Box ..................................................................... 41
5.9 Communication Wiring Board..................................................................... 42
5.10 RS485 Connection ................................................................................... 42
5.10.1 Interface Description ...................................................................... 42
5.10.2 RS485 Communication System ...................................................... 43
5.10.3 Connection Procedure(Terminal Block) ........................................... 45
5.10.4 Connection Procedure (RJ45 Ethernet Port).................................... 46
5.11 PLC Communication Connection .............................................................. 48
5.12 Dry Contact Connection ........................................................................... 48
5.12.1 Dry Contact Function ...................................................................... 48
5.12.2 Wiring Procedure............................................................................ 50
5.13 Communication Module Connection (optional) ......................................... 50
6 Commissioning
........................................................................................... 52
6.1 Inspection before Commissioning............................................................... 52
6.2 Commissioning Procedure ......................................................................... 52
7 iSolarCloud App
.......................................................................................... 53
7.1 Brief Introduction........................................................................................ 53
7.2 Installing the App........................................................................................ 53
7.3 Function Overview ..................................................................................... 54
7.4 Login.......................................................................................................... 54