Sungrow SG125HV-30, User Manual

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VI
6.1 Terminal Description ................................................................ 32
6.1.1 Appearance ............................................................................. 32
6.1.2 Dimensions of Terminal ........................................................... 34
6.2 AC Side Cable Connection ...................................................... 35
6.2.1 AC side requirements .............................................................. 35
6.2.2 Grid Connection ...................................................................... 38
6.2.3 Requirements for OT/DT Terminal (AC) ................................... 39
6.2.4 Connecting the Inverter to Grid ............................................... 40
6.3 Connecting Inverter to PV Arrays ............................................ 42
6.3.1 PV Input Configuration ............................................................ 43
6.3.2 Requirements for OT/DT Terminal (DC) .................................. 43
6.3.3 PV Input Connection ............................................................... 44
6.4 Additional Grounding Connection ............................................ 47
6.4.1 Grounding System Overview ................................................... 47
6.4.2 Additional Grounding Terminal ................................................. 48
6.5 RS485 Communication Connection ........................................ 49
6.5.1 Communication Overview ........................................................ 49
6.5.2 RS485 Communication System ............................................... 51
6.5.3 RS485 Communication Connection ......................................... 52
6.6 Configurable Dry Contact ........................................................ 53
7 Commissioning ................................................................ 56
7.1 Inspection before Commissioning ........................................... 56
7.2 Commissioning Procedure ...................................................... 56
8 Disconnecting, Dismantling and Disposing the
Inverter .................................................................................... 58
8.1 Disconnecting the Inverter ....................................................... 58
8.2 Dismantling the Inverter .......................................................... 58
8.3 Disposal of the Inverter ........................................................... 59
9 Troubleshooting and Maintenance ................................. 60
9.1 Troubleshooting ....................................................................... 60
9.2 Maintenance ............................................................................ 69
9.2.1 Routine Maintenance .............................................................. 69