120
302
Over-current (DC)
Behavior Short interruption of power feeding into the grid,
caused by overcurrent
Fronius IG Plus returns to startup phase
Remedy automatically
Should the status code persist, you should contact
your electrical contractor
303
Over-temperature AC side
Behavior Short interruption of power feeding into the grid
caused by overtemperature
Remedy after a two minutes cooling phase your Fronius IG
Plus unit restarts
Should the status code persist, you should contact
your electrical contractor
304
Over-temperature DC-side
Behavior Short interruption of power feeding into the grid
caused by overtemperature
Remedy after a two minutes cooling phase your Fronius IG
Plus unit restarts
Should the status code persist, you should contact
your electrical contractor
305
No power transfer to grid possible
Behavior Continual interruption of grid feed operation
Remedy Should the status code persist, you should contact
your electrical contractor
‘POWERLOW’ (306)
Intermediate circuit voltage has dropped below permissible threshold
value for feed in.
this error is shown on the Fronius IG Plus in plain text
Behavior Short interruption of power feeding into the grid
Fronius IG Plus resumes starting up phase
Remedy automatically
Should the status code persist, you should contact
your electrical contractor
Class 3 Status
Codes
(continued)