Sungrow SG3425UD - User Manual

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SG3425UD/

SG3600UDOutdoor InverterSystem

ManualSG3425UD_3600UD-SEN-

Ver14-202208M-H-002150

System Manual

Outdoor Inverter

SG3425UD/SG3600UD

SG3425UD_3600UD-SEN-Ver14-202208

Main Page

Table of Contents3
About this Manual9
Validity9
Content9
Target Group9
Symbols Explanation10
How to Use this Manual11
Terminology11
Safety Instructions12
Intended Usage12
Important Safety Instructions12
General Safety Rules13
Manual Storage13
PV Arrays Hazards14
Ground Fault Protection14
Live Line Measurement14
Measuring Instrument14
Volt-Free Operations15
ESD Protection15
LCD Parameter Setting15
Sand and Moisture Protection15
Symbols on the Device Body15
Safety Warning Signs16
Daily Operation and Maintenance16
Disposal of Waste16
Manual Description17
Product Description18
Overall Design of the Inverter18
Inverter Views18
Mechanical Parameter19
Ventilation Design20
Interior Design of the Inverter20
Internal Components20
Internal Devices of the Inverter21
Operations on the DC and AC Side22
Delivery25
Scope of Delivery25
Identifying the Inverter26
Checking for Transport Damages26
Storage of the Inverter26
Mechanical Installation28
Transport28
Hoisting the Inverter30
Safety Precautions30
Hoisting31
Fastening of Connectors33
Foundation33
Selection of Installation Site33
Foundation Requirements33
Recommended Foundation Construction Plan34
Other Precautions35
Removing the Sealing Tapes36
Clearance Requirement36
Electrical Installation37
Safety Instructions37
Generals Rules37
Preparation before Electrical Connections39
Installation Tools39
Opening the Inverter Door40
Opening the Cable Entries41
Checking the Cables42
During Connection42
Circuit Diagram and Cable Connection42
Circuit Diagram42
Cable Specifications43
DC Connection43
Checking before Connection43
DC Cable Connection43
AC Connection47
Safety Notices47
AC Connection Area on the Side47
AC Connection Area at the Bottom48
Communication Connection51
Ground Connection51
Finishing Electrical Connection52
Closing the Inverter Door54
Commissioning55
Safety Instructions55
Requirements of Commissioning55
Checking before Commissioning56
Checking the Cable Connection56
Checking the Inverter Switches56
Checking PV Array56
Checking Grid Voltage57
Preparation before Starting57
LCD Parameter Setting58
Completing Commissioning58
Starting/Stopping59
Starting59
Inspection before Starting59
Start Steps59
Stopping60
Normal Stop60
Stop in Case of Fault60
LCD Menu Operation62
LCD Touchscreen62
Default Screen62
Initialization62
Default Screen Introduction62
Backlight and Screensaver63
Overview of LCD Menu and Icon63
Overview of Submenu and Icon63
Layout of the Submenus64
Entering Password65
Language Setting66
Conventional Way66
Shortcut66
Setting Date and Time66
Checking Running Information67
Checking History Information67
Checking History Event67
Checking History Data68
Checking History Fault68
Checking History Alarm68
Checking Present Fault Information68
Starting/Stopping69
Loading Default69
Checking Firmware Version70
Parameters of LCD70
Communication Parameters70
Running Parameters71
Protection Parameter71
Main Functions72
Operation Mode72
Mode Change72
Operation Mode Description72
Active Power Limitation74
Introduction to Active Power Limitation74
How to Realize Power Limitation74
Reactive Power Adjustment74
Low Voltage Ride through (LVRT)75
High Voltage Ride through (HVRT)76
Mppt77
Intelligent Temperature-Control Technology77
Insulation Monitoring Function78
Introduction78
Simple Troubleshooting78
Protection Function78
DC Over-Voltage Protection78
AC Over/Under-Voltage Protection78
Frequency Anomaly Protection79
Islanding Protection79
Overload Protection79
Ground Protection79
Module Over-Temperature Protection79
Internal Over-Temperature Protection79
Troubleshooting80
Safety Instructions80
Checking Fault80
Fault and Troubleshooting on the Inverter81
Other Fault and Troubleshooting92
Routine Maintenance93
Overview93
Safety Instructions93
Maintenance94
Overview94
Introduction94
Maintenance Interval94
Cleaning the Inverter98
Introduction98
Cleaning Interval99
Cleaning the Internal Dust99
Cleaning the Foundation99
Checking and Cleaning the Air Inlets/Outlets99
Cleaning the Surface of the Inverter100
Checking the Lock and Hinge100
Checking the Sealing Strip100
Painting Make-Up Measures100
Replacing the Electrical Components104
Safety Instructions104
Replacing DC Fuses104
Appendix106
System Parameters106
Tightening Torques107
Exclusion of Liability108
Contact Information108

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Sungrow SG3425UD Specifications

General

Brand	Sungrow
Model	SG3425UD
Category	Inverter
Language	English

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Sungrow SG3425UD - User Manual

Table of Contents

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