Fronius IG Plus 5.0-1 User Manual

11
The solar inverter Fronius IG Plus is the highly complex link between solar
modules and the grid.
General infor-
mation
The Fronius IG Plus Unit in the PV System
The Fronius IG Plus unit transforms the direct current generated by the
solar modules into alternating current. This alternating current is fed into
your home system or into the public grid and synchronized with the volta-
ge that is used there.
Important The Fronius IG Plus has been designed exclusively for use
in grid connected photovoltaic systems. It cannot generate electric power
independent from the grid.
Converting DC
into AC cur-
rent
The Fronius IG Plus is fully automatic. Starting at sunrise, as soon as the
solar modules generate enough power, the automatic control unit starts
monitoring voltage and frequency. As soon as there is a sufficient level of
irradiance, your solar inverter starts feeding energy to the grid.
The control system of the Fronius IG Plus unit ensures that the maximum
possible power output is drawn from the solar modules at all times.
This function is called MPPT (Maximum Power Point Tracking).
Fully automa-
tic operation
management
Tasks The main tasks of the Fronius IG Plus include:
- Converting DC into AC current
- Fully automatic operation management
- Display function and data communication
PV array
Fronius IG Plus
Main AC
Load
Center
Energy-
meter

Fronius IG Plus 5.0-1 Specifications

General

Nominal AC Power	5000 W
AC Nominal Voltage	230 V
Frequency	50 / 60 Hz
Max Apparent AC Power	5000 VA
Max Output Current	21.7 A
THD	< 3 %
Inverter Design	Transformerless
AC Connection	Screw terminals