Fronius IG Plus 35 - General Information

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Table of Contents
General Information 7
Operator and Equipment Protection .................................................................................. 9
Safety............................................................................................................................. 9
Operator and Equipment Protection .............................................................................. 9
Galvanic Isolation .......................................................................................................... 9
Monitoring the mains network ........................................................................................ 9
The Fronius IG Plus in the Photovoltaic System .............................................................. 10
General ........................................................................................................................ 10
Tasks............................................................................................................................ 10
Converting DC to AC current ....................................................................................... 10
Fully Automatic Operational Management ................................................................... 10
Display Function and Data Communication ................................................................. 10
System Upgrades ......................................................................................................... 11
Inverter Cooling using Forced-air Ventilation ................................................................ 11
Power Derating ............................................................................................................. 11
Installation and Startup 13
Fronius IG Plus Installation and Connection .................................................................... 15
Fronius IG Plus Setup.................................................................................................. 15
Overview ...................................................................................................................... 15
Fronius IG Plus Connection Options ................................................................................ 16
Fronius IG Plus Connection Options ........................................................................... 16
Target Punch-outs on the Fronius IG Plus ....................................................................... 18
General ........................................................................................................................ 18
Target Punch-outs for Cable Inputs ............................................................................. 18
Location Selection............................................................................................................ 20
General Location Selection.......................................................................................... 20
Location Selection for Inside Installation ..................................................................... 21
Location Selection for Outside Installation................................................................... 21
Fronius IG Plus Installation .............................................................................................. 22
Attaching Wall Bracket................................................................................................. 22
Fronius IG Plus Installation .......................................................................................... 23
Connecting the Fronius IG Plus to the Public Grid (AC) .................................................. 24
Monitoring the Mains Network ..................................................................................... 24
Installations with Several Inverters .............................................................................. 24
AC-side Terminals........................................................................................................ 24
Connecting Aluminum Cables ...................................................................................... 25
Cross Section of AC Cable .......................................................................................... 25
Safety........................................................................................................................... 25
Connecting the Fronius IG Plus to the Public Grid (AC) .............................................. 26
Fuse Recommendation for the AC-side ....................................................................... 26