Sungrow SG4.0RT - Page 131

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121

step 5 Lift the fan bracket upwards, press down the protrusion on the fan power plug connector and

pull it outwards, and remove the fan bracket.

step 6 Unscrew the screws on the dust covers and remove the dust covers.

User Manual 9 Troubleshooting and Maintenance

Main Page

About this Manual4
Table of Contents7
Safety Instructions11
Unpacking and Inspection12
Installation Safety12
Electrical Connection Safety13
Operation Safety14
Maintenance Safety15
Disposal Safety16
Product Description17
System Introduction17
Product Introduction19
Symbols on Product21
LED Indicator22
Circuit Diagram22
Function Description23
Unpacking and Storage28
Unpacking and Inspection28
Inverter Storage28
Mechanical Mounting30
Safety During Mounting30
Location Requirements31
Environment Requirements31
Carrier Requirements31
Angle Requirements32
Clearance Requirements32
Installation Tools33
Moving the Inverter35
Installing the Inverter35
Installing Optimizer(Optional)37
Electrical Connection39
Safety Instructions39
Terminal Description41
Electrical Connection Overview42
External Protective Grounding Connection44
External Protective Grounding Requirements45
Connection Procedure45
AC Cable Connection47
AC Side Requirements47
Assembling the AC Connector (< 15 Kw)48
Installing the AC Connector (< 15 Kw)50
Assembling the AC Connector (≥ 15 Kw)51
Installing the AC Connector (≥ 15 Kw)53
DC Cable Connection55
PV Input Configuration57
Assembling PV Connectors58
Installing the PV Connectors59
Winet-S/Winet-S2 Connection63
Ethernet Communication64
WLAN Communication66
Wifi Connection (for Brazil)67
Meter Connection68
Assembling the COM Connector68
Installing the COM Connector70
RS485 Connection71
RS485 Communication System71
Assembling the COM Connector72
Installing the COM Connector75
DO Connection76
DRM Connection76
DI Connection77
NS Protection Connection80
Commissioning84
Inspection before Commissioning84
Powering on the System84
App Preparation85
Plant Creation85
Optimizer Physical Layout (Optional)93
Isolarcloud App94
Brief Introduction94
Installing App94
Account Registration95
Login96
Requirements96
Login Procedure96
Initial Settings98
Function Overview99
Home100
Run Information101
Records101
More104
System Parameters105
Operation Parameters105
Power Regulation Parameters107
Communication Parameters113
Firmware Update113
Auto-Test114
Spi(For Italy CEI0-21 Grid Code Only)116
System Decommissioning117
Disconnecting Inverter117
Dismantling the Inverter117
Disposal of Inverter118
Troubleshooting and Maintenance119
Troubleshooting119
Maintenance128
Maintenance Notices128
Quick Shutdown129
Routine Maintenance130
Fan Maintenance130
Appendix133
Technical Data133
Quality Assurance152
Contact Information153

Sungrow SG4.0RT - Page 131

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