3
Solar Module Ground at Positive Pole: Connecting combined Solar Module Strings
using a DC String Input Combiner.................................................................................... 55
General ........................................................................................................................ 55
Additional Required Components ................................................................................ 55
Solar Module Ground at Positive Pole ......................................................................... 55
Solar Module Ground at Positive Pole: Connecting combined Solar Module
Strings using a DC String Input Combiner ................................................................... 56
Safety........................................................................................................................... 56
Attaching Power Stage Sets and Closing the Fronius IG Plus ......................................... 59
Preparation .................................................................................................................. 59
Opening the Fronius IG Plus for Service/Maintenance................................................ 59
Attaching Power Stage Sets And Closing the Fronius IG Plus..................................... 59
Start up Operation............................................................................................................ 60
Factory pre-set configuration ....................................................................................... 60
Requirements for Starting up Operation ...................................................................... 60
Start up Operation........................................................................................................ 60
Selecting the public grid............................................................................................... 61
Startup Phase at Startup Operation ............................................................................. 63
Inserting Option Cards ..................................................................................................... 65
Suitable Option Cards.................................................................................................. 65
Safety........................................................................................................................... 65
Opening the Fronius IG Plus ....................................................................................... 65
Inserting Option Cards ................................................................................................. 66
Connecting Option Cards, Laying Data Communication Wires ................................... 66
Solar Net and Data Interface ....................................................................................... 68
Closing the Fronius IG Plus ......................................................................................... 68
Example....................................................................................................................... 69
Operation 71
Product description Fronius IG Plus................................................................................. 73
Keys and Symbols ....................................................................................................... 73
Display .........................................................................................................................73
Test Procedure............................................................................................................. 75
Startup phase............................................................................................................... 75
Operating Status LED .................................................................................................. 77
Operating scheme - the Display....................................................................................... 79
Activating ..................................................................................................................... 79
Display Illumination ...................................................................................................... 79
Accessing Menus......................................................................................................... 79
Selecting a display mode ............................................................................................. 80
Scrolling Between Display functions ............................................................................ 80
Overview of Display Values ......................................................................................... 81
Display Modes ................................................................................................................. 82
Display Modes ............................................................................................................. 82
Overview ...................................................................................................................... 82
Within display mode ‘Now’ displayed data ....................................................................... 83
Selecting display mode ‘Now’ ...................................................................................... 83
Within display mode ‘Now’ displayed data................................................................... 83
Options ........................................................................................................................ 85