Fronius IG Plus A 3.0-1 UNI User Manual

5
EN-US
Contents
Safety rules ................................................................................................................................................ 9
Protection of Persons and Equipment ....................................................................................................... 13
Safety.................................................................................................................................................... 13
Protection of Persons and Equipment .................................................................................................. 13
Galvanic isolation.................................................................................................................................. 13
Monitoring the Grid ............................................................................................................................... 13
Information on "Field Adjustable Trip Points" and "Advanced Grid Features" ..................................... 13
FCC compliance ................................................................................................................................... 14
Ground fault detector / interrupter......................................................................................................... 14
Arc detection / interruption .................................................................................................................... 14
Standards and regulations .................................................................................................................... 14
Declaration of conformity ...................................................................................................................... 14
Warning notice on the wall bracket ....................................................................................................... 15
Warning notices affixed to the device ................................................................................................... 15
The inverter in the PV system.................................................................................................................... 16
General ................................................................................................................................................. 16
Tasks .................................................................................................................................................... 16
Converting DC to AC Current ............................................................................................................... 16
Fully automatic operation management................................................................................................ 16
Display function and data communication ............................................................................................ 17
Data Communications Components ..................................................................................................... 17
Forced Ventilation ................................................................................................................................. 17
Power derating...................................................................................................................................... 17
Installing and connecting inverter .............................................................................................................. 18
Safety.................................................................................................................................................... 18
Inverter Construction............................................................................................................................. 18
Connection diagram.............................................................................................................................. 19
Overview ............................................................................................................................................... 19
Connection options .................................................................................................................................... 20
Connection options ............................................................................................................................... 20
‘Fronius Arc Blocker‘ plug-in card ......................................................................................................... 21
Knockouts .................................................................................................................................................. 22
General ................................................................................................................................................. 22
Knockouts for wire inputs...................................................................................................................... 22
Choosing the Location ............................................................................................................................... 24
Choosing the location in general........................................................................................................... 24
Choosing a Location for Inside Installation ........................................................................................... 25
Choosing a location for outdoor installation .......................................................................................... 25
Installing the inverter.................................................................................................................................. 26
General ................................................................................................................................................ 26
Assembling the wall bracket ................................................................................................................. 26
Recommended screws for wall bracket assembly ................................................................................ 26
Attaching the wall bracket - mounting height ........................................................................................ 26
Attaching the wall bracket to a concrete or brick wall ........................................................................... 27
Attaching the wall bracket to a wooden wall ......................................................................................... 27
Installing a wall bracket on an individual column outdoors ................................................................... 28
Attaching the wall bracket to a metal carrier ......................................................................................... 29
Lifting the inverter ................................................................................................................................. 30
Inverter installation................................................................................................................................ 30
Installation of several inverters ............................................................................................................. 32
Connecting the inverter to the public grid (AC) .......................................................................................... 33
Overview of available grids ................................................................................................................... 33
Monitoring the Grid ............................................................................................................................... 35
Systems with more than one inverter.................................................................................................... 35
AC-side terminals and grounding terminals .......................................................................................... 36
Cross section of AC wires..................................................................................................................... 37
480 V Delta: 277 WYE Neutral conductor sizing .................................................................................. 37
Safety.................................................................................................................................................... 37
Connecting the Inverter to the public grid (AC)..................................................................................... 38
Connecting grounding electrode wire ................................................................................................... 39

Fronius IG Plus A 3.0-1 UNI Specifications

General

AC nominal output	3000 W
Max. apparent AC power	3000 VA
Max. output current	13 A
AC grid frequency	50 / 60 Hz
THD	<3%
Max. DC voltage	500 V
Number of MPP trackers	1
AC voltage range	183 V - 264 V
DC input voltage range	150 - 450 V
Cooling	Convection