Fronius IG-TL 3.0, Operating Instructions Manual

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Startup Phase and Grid Feed-in Mode
Startup phase The inverter automatically carries out the following tests and checks after it is turned on:
a) Self-test of essential inverter components - the inverter goes through a virtual checklist
b) Synchronization with the grid
c) Startup test
Before the inverter starts feeding energy into the grid, the conditions of the grid are
tested in accordance with local regulations.
The startup test can take anything from just a few seconds to several minutes depend-
ing on national regulations.
During the startup phase
-
The operating status LED lights up orange,
- ‘wait ...’ appears on the display and the component currently being tested is displayed,
e.g.:
The operation of
feeding energy
into the grid - After the tests are completed, the inverter starts feeding energy into the grid.
- Once connected to the grid, the inverter checks the relay function without power: with-
in 1 second, several relay switching operations can be heard.
- The display shows the present power feeding into the grid, e.g.:
- The Operating Status LED lights up green, and the inverter starts operating.