CPS SCH275KTL-DO/US-800, User Manual, Page: 2 / 79

Table of Contents
2 / 79
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 ............................... 7
2 Product Introduction ........................................................... 10
Inverter for Grid-tied PV Systems.................................................... 10
Product Appearance and Dimensions ............................................. 10
Product Features............................................................................. 11
Product Protection Functions .......................................................... 11
Smart Inverter Functions and Default Activation ............................. 12
Anti-islanding Detection .................................................................. 12
Surge Suppression.......................................................................... 12
3 Mechanical Installation ....................................................... 13
Unpacking for Inspection ................................................................. 13
Installation Precautions ................................................................... 14
Installation Requirements ................................................................ 15
3.3.1 Environment Requirements .................................................... 15
3.3.2 Installation Modes ................................................................... 15
3.3.3 Space Requirements .............................................................. 15
Installation Procedures .................................................................... 16
3.4.1 Install the Inverter ................................................................... 16
3.4.2 Install the WIFI Module ........................................................... 19
4 Electrical Connection .......................................................... 20
Schematic Diagram and Circuit Design ........................................... 20
Cable Specifications........................................................................ 20
Tools Required and Torque Values .................................................. 21
Connect Interfaces and Connection Points ..................................... 21
4.4.1 Connection Interfaces ............................................................. 21
4.4.2 Internal Connection Points ...................................................... 22
Electrical Cable Connection ............................................................ 23
4.5.1 Grounding ............................................................................... 23
4.5.2 AC Wiring ............................................................................... 24
4.5.3 DC Wiring ............................................................................... 26
Communication Cable Connection .................................................. 29
4.6.1 Communication Board ............................................................ 29
4.6.2 Communication Cable Connection ......................................... 30
5 Commissioning .................................................................... 32