SMA SUNNY STRING-MONITOR Technical Description page 4

Table of Contents
5.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 21
5.3 Closing and Opening the Sunny String-Monitor. . . . . . . . . . . . 23
5.4 Connecting the PV strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.4.1 Connect the PV Strings to the Spring Clamp Terminals . . . . . . . . . . . . . . . . . 24
5.4.2 Connect the PV Strings to the SUNCLIX DC Plug Connectors. . . . . . . . . . . . 24
5.4.3 Connect the PV Strings to the Tyco, MC3 and MC4 Plugs. . . . . . . . . . . . . . 26
5.5 Connecting the DC Main Cable . . . . . . . . . . . . . . . . . . . . . . . . 26
5.6 Connecting to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.7 Connecting the Data Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.7.1 Data Cable Properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.7.2 Connect the Data Cable Shield Contact. . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.7.3 Connecting the Data Cable in the Sunny String-Monitor . . . . . . . . . . . . . . . 28
5.7.4 Connecting the Data Cable in the Sunny Central . . . . . . . . . . . . . . . . . . . . . 30
5.7.5 Terminating the Data Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.8 Connecting the Remote Tripping for the DC Circuit Breaker. . . 32
5.8.1 Dimensioning the Connection Cable for the Operating Current Release . . . 32
5.8.2 Dimension the Connection Cable for the Undervoltage Release . . . . . . . . . 34
5.8.3 Connect Shunt Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.8.4 Connecting the Feedback Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.9 Install Anti-Theft Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.10 Identification of the Piggy-Back for Data Processing. . . . . . . . . 36
6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.1 Commissioning the Sunny String-Monitor . . . . . . . . . . . . . . . . . 37
6.2 Switching On the Sunny String-Monitor . . . . . . . . . . . . . . . . . . 38
6.3 Disconnecting the Sunny String-Monitor . . . . . . . . . . . . . . . . . . 39
6.4 Reconnect the DC Circuit Breaker after Tripping . . . . . . . . . . . 40
7 Configure Sunny String-Monitor . . . . . . . . . . . . . . . . . . . . 41
7.1 Configure the Sunny String-Monitor via Sunny Central Control 41
4 SSM-TEN103132
SMA Solar Technology AG
Technical Description