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4.5 Installing the Inverter .................................................................................. 20

4.6 Connecting the Communication Module (Optional) ..................................... 21

5 Electrical Connection ............................................................................... 22

5.1 Safety Instructions...................................................................................... 22

5.2 Terminal Description................................................................................... 22

5.3 Additional Grounding Connection ............................................................... 23

5.3.1 Additional Grounding Requirements.................................................. 24

5.3.2 Connection Procedure ...................................................................... 24

5.4 AC Cable Connection ................................................................................. 25

5.4.1 AC Side Requirements...................................................................... 25

5.4.2 Assembling the AC Connector .......................................................... 26

5.4.3 Installing the AC Connector............................................................... 28

5.5 DC Cable Connection ................................................................................. 29

5.5.1 PV Input Configuration ...................................................................... 30

5.5.2 DC Side Requirements...................................................................... 31

5.5.3 Assembling the PV Connector........................................................... 31

5.5.4 Installing the PV Connector ............................................................... 32

5.6 RS485 Communication System.................................................................. 34

5.7 GPRS Communication System (Optional) ................................................... 36

5.8 Ethernet Communication System (Optional) ............................................... 36

5.9 Smart Energy Meter Connection (Optional)................................................. 37

5.9.1 On the Smart Energy Meter Side....................................................... 37

5.9.2 On the Inverter Side .......................................................................... 37

6 Commissioning ........................................................................................... 39

6.1 Inspection before Commissioning............................................................... 39

6.2 Commissioning Procedure ......................................................................... 39

7 iSolarCloud App .......................................................................................... 40

7.1 Brief Introduction........................................................................................ 40

7.2 Download and Install .................................................................................. 40

7.3 Login.......................................................................................................... 41

7.3.1 Requirements ................................................................................... 41

7.3.2 Login Steps ...................................................................................... 41

7.4 Function Overview ..................................................................................... 42

7.5 Home......................................................................................................... 43

7.6 Chart.......................................................................................................... 44

7.7 More .......................................................................................................... 45

Sungrow SG20KTL-M User Manual

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