Sungrow SG1250UD, Installation Manual

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7.8 DC Side Cable Connection ....................................................................... 29
7.8.1 Cable Check ...................................................................................... 29
7.8.2 Cable Connection Area ..................................................................... 30
7.8.3 DC Side Cable Connection ............................................................... 31
7.9 AC Side Cable Connection ........................................................................ 32
7.9.1 Safety Precautions ............................................................................ 32
7.9.2 Cable Routing ................................................................................... 32
7.9.3 Cable Connection.............................................................................. 33
7.10 Grounding Connection ..................................................................... 35
7.10.1 Description of Grounding Terminal .................................................. 36
7.10.2 Grounding of the Shielding Layer of Communication Cable ........... 36
7.11 Communication Cable Connection .................................................. 36
7.11.1 Introduction ..................................................................................... 36
7.11.2 RS485 Communication Solution ..................................................... 36
7.11.3 Ethernet Communication Solution .................................................. 39
7.12 Supply Modes .................................................................................. 40
7.12.1 Introduction ..................................................................................... 40
7.12.2 Internal Power Supply ..................................................................... 41
7.12.3 External Power Supply (Optional) ................................................... 41
7.13 Closing the Cable Entrance ............................................................. 41
7.14 Installation Checklist ........................................................................ 42
8 Commissioning ....................................................................... 43
8.1 Commissioning Requirements .................................................................. 43
8.2 Check Before Commissioning ................................................................... 43
8.2.1 Cable Connection Check .................................................................. 43
8.2.2 Inverter Check ................................................................................... 43
8.2.3 PV Array Check ................................................................................. 44
8.2.4 Grid Voltage Check ........................................................................... 44
8.3 Preparation for Starting ............................................................................. 45
8.4 Starting ...................................................................................................... 45
8.5 LCD Parameter Setting ............................................................................. 45
8.6 Commissioning Completion ....................................................................... 46
9 Appendix ................................................................................. 47
9.1 Technical Parameters ................................................................................ 47
9.1.1 Electrical Parameters ........................................................................ 47
9.1.2 Mechanical Parameters .................................................................... 47
9.1.3 System Parameters........................................................................... 47