Sungrow SG320HX - Page 8

VI
4.4.2 Hoisting Transport...............................................................................24
4.5 Installing the mounting-bracket ......................................................................26
4.5.1 Bracket-Mounted Installation................................................................27
4.5.2 Wall-Mounted Installation.....................................................................29
4.5.3 Pole-Mounting ....................................................................................32
4.6 Installing the Inverter.....................................................................................35
5 Electrical Connection .....................................................................................36
5.1 Safety Instructions ........................................................................................36
5.2 Terminal Description .....................................................................................37
5.3 Electrical Connection Overview .....................................................................38
5.4 Crimp OT / DT terminal .................................................................................42
5.5 External Protective Grounding Connection .....................................................43
5.5.1 External Protective Grounding Requirements ........................................43
5.5.2 Connection Procedure.........................................................................43
5.6 AC Cable Connection ...................................................................................44
5.6.1 AC Side Requirements ........................................................................44
5.6.2 Requirements for OT/DT Terminal ........................................................47
5.6.3 Connection Procedure of One Wire per Phase with Multi-core
Cable ............................................................................................48
5.6.4 Connection Procedure of Two Wires per Phase with Multi-core
Cable ............................................................................................52
5.7 DC Cable Connection ...................................................................................57
5.7.1 PV Input Configuration ........................................................................58
5.7.2 Assembling the PV Connectors ............................................................59
5.7.3 Installing the PV Connector..................................................................61
5.8 Wiring of Tracking System Power Cable (Optional) .........................................62
5.9 RS485 Connection(COM1)............................................................................64
5.9.1 Interface Description ...........................................................................64
5.9.2 RS485 Communication System............................................................64
5.9.3 Connection Procedure.........................................................................65
5.10 Dry Contact Connection(COM2) ..................................................................68
5.10.1 Interface Description .........................................................................68
5.10.2 Dry Contact Function .........................................................................69
5.10.3 Connection Procedure .......................................................................70
5.11 PLC Communication Connection .................................................................73
6 Commissioning ...............................................................................................75