Table of Contents
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Table of Contents
0 Preface .......................................................................................... 4
1 IMPORTANT SAFETY INSTRUCTIONS ....................................... 5
Warnings and Symbols in this Document ............................................................ 5
Markings on the Product ..................................................................................... 6
Safety Instructions of Operating the PV Inverter ................................................. 8
2 Product Introduction .................................................................. 11
Inverter for Grid-tied PV Systems ..................................................................... 11
Product Appearance and Dimensions ............................................................... 11
Product Features .............................................................................................. 12
Schematic Diagram and Circuit Design ............................................................ 14
Product Protection Functions ............................................................................ 15
Smart Inverter Functions and Default Activation ............................................... 15
Anti-islanding Detection .................................................................................... 15
DC Ground Fault Protection .............................................................................. 16
Surge Suppression ........................................................................................... 16
3 Mechanical Installation .............................................................. 17
Unpacking for Inspection .................................................................................. 17
Pre-Installation Checklist .................................................................................. 18
Installation Requirements ................................................................................. 21
3.1.1 Installation Methods ......................................................................... 21
3.1.2 Installation Environment................................................................... 21
3.1.3 Space Requirements ....................................................................... 22
Installation Procedures ..................................................................................... 23
3.1.4 Install the Inverter ............................................................................ 23
4 Electrical Connection ................................................................ 26
Cable Specifications ......................................................................................... 26
Tools Required and Torque Values ................................................................... 26
Connect Interfaces and Connection Points ....................................................... 27
4.1.1 Connection Interfaces ...................................................................... 27
4.1.2 Internal Connection Points ............................................................... 28
Electrical Cable Connection .............................................................................. 29
4.1.3 Grounding ........................................................................................ 30
4.1.4 AC Wiring ......................................................................................... 32
4.1.5 DC Wiring ........................................................................................ 34
Communication Cable Connection .................................................................... 38
4.1.6 Communication Board ..................................................................... 38
4.1.7 Communication Connection ............................................................. 39
Install the LINKIT Module .................................................................................. 42
Cable Connection Notices for Joints and Seals ................................................ 43