SMA SC 500HE-20 User Manual
Page 4
Table of Contents
SMA Solar Technology AG
4
SCxxxHE-20-BE-BEN111210
Operating Manual
Grid Management Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Active Islanding Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Serial Number and Device Type . . . . . . . . . . . . . . . . . . . . . . . 30
Symbols on the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . 30
Setting Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
SC-COM Communication . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Displaying Spot Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Changing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Setting Up the Sunny Central String-Monitor Controller . . . . . . 35
Setting the Parameters for String Current Monitoring in the PV Plant . . . . . . 35
Optional Settings for PV Plant Monitoring . . . . . . . . . . . . . . . . 37
Changing the Communication Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Changing the Monitoring Period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Assigning PV Strings to Various Measuring Channels. . . . . . . . . . . . . . . . . . 38
Assigning PV strings to Different Groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Reading the Measured Values . . . . . . . . . . . . . . . . . . . . . . . . . 39
Reading the Measured Values of the Groups. . . . . . . . . . . . . . . . . . . . . . . . 39
Reading the Measured Values for the Individual Measuring Channels . . . . 39
Setting the Remote Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Disconnecting "Fully Hermetic Protection" for
the Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Setpoint for Active Power and Reactive Power. . . . . . . . 41
Active Power Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Frequency-Independent Active Power Limitation Procedure . . . . . . . . . . . . . 41