2 Overview ......................................................................................................................................... 4

2.1 Introduction .................................................................................................................................................................. 4

2.2 Appearance ................................................................................................................................................................... 5

2.3 Label Description .......................................................................................................................................................... 9

2.4 Working Principle ....................................................................................................................................................... 11

3 Inverter Storage ........................................................................................................................... 14

4 Installation.................................................................................................................................... 15

4.1 Checking Before Installation ...................................................................................................................................... 15

4.2 Materials ..................................................................................................................................................................... 16

4.3 Determining the Installation Position ......................................................................................................................... 18

4.4 Installing the Mounting Bracket ................................................................................................................................. 22

4.5 Installing the SUN2000 .............................................................................................................................................. 26

5 Electrical Connections ................................................................................................................ 31

5.1 Precautions .................................................................................................................................................................. 31

5.2 Crimping the OT Terminal .......................................................................................................................................... 31

5.3 Connecting a ground cable ......................................................................................................................................... 33

5.4 Opening the Maintenance Compartment Door ........................................................................................................... 34

5.5 Connecting AC Output Power Cables ......................................................................................................................... 36

5.6 Connecting DC input power cables ............................................................................................................................ 41

5.7 Connecting the Communications Cable ...................................................................................................................... 48

5.7.1 Communication Mode Description .......................................................................................................................... 48

5.7.2 Connecting the RS485 Communications Cable ....................................................................................................... 49

5.8 Closing the Maintenance Compartment Door ............................................................................................................ 56

6 System Commissioning ............................................................................................................. 58

6.1 Checking Before Power-On ........................................................................................................................................ 58

6.2 DC Input Detection ..................................................................................................................................................... 58

6.3 Powering On the SUN2000 ........................................................................................................................................ 60

6.4 Powering Off the SUN2000 ........................................................................................................................................ 65

Issue 06 (2020-01-03)

Contents