V
6.2.1 AC side requirements ........................................................................................... 28
6.2.2 Grid Connection ..................................................................................................... 31
6.3
PV Array Connection .......................................................................................... 35
6.3.1 PV Input Configuration ........................................................................................ 35
6.3.2 PV Input Connection ............................................................................................. 37
6.4
Grounding the Inverter ..................................................................................... 38
6.4.1 Grounding System Overview............................................................................. 38
6.4.2 Second Protective Earth Terminal .................................................................... 38
6.5
Communication Connection .......................................................................... 39
6.5.1 Communication Overview.................................................................................. 39
6.5.2 RS485 Communication System ......................................................................... 40
6.5.3 RS485 Communication Connection ................................................................ 43
7
Commissioning ...................................................................... 46
7.1
Inspection before Commissioning ............................................................... 46
7.2
Commissioning Procedure .............................................................................. 46
8
Disconnecting, Dismantling and Disposing the Inverter .... 50
8.1
Disconnecting the Inverter ............................................................................. 50
8.2
Dismantling the Inverter .................................................................................. 50
8.3
Disposal of the Inverter .................................................................................... 51
9
Troubleshooting and Maintenance ...................................... 52
9.1
Troubleshooting .................................................................................................. 52
9.1.1 Troubleshooting of LED Indicator .................................................................... 52
9.1.2 Troubleshooting of Faults in LCD Screen ...................................................... 52
9.2
Maintenance ......................................................................................................... 56
9.2.1 Routine Maintenance ........................................................................................... 56
9.2.2 Maintenance Instruction ..................................................................................... 57
9.3
Contact Sungrow Service ................................................................................. 58
10
Operation of LCD Display ...................................................... 60
10.1
Description of Button Function ..................................................................... 60
10.2
Menu Tree .............................................................................................................. 61
10.3
Main Screen .......................................................................................................... 62
10.4
Contrast Adjustment ......................................................................................... 63
