Fronius Galvo 3.0-1 - Status Codes: Class 1 and Class 3; Class 1 Status Codes; Class 3 Status Codes

44
Class 3 status
codes
Class 3 includes status codes that may occur while feeding energy into the grid, but gen-
erally do not cause the process to be interrupted for any length of time.
The inverter disconnects automatically from the grid, the grid is then monitored as specified
and the inverter attempts to resume feeding energy into the grid.
Class 4 status
codes
Some of the class 4 status codes necessitate intervention by a Fronius-trained service en-
gineer.
Code Description Behaviour Remedy
301 Overcurrent (AC)
Short-term interruption while
feeding energy into the grid
due to overcurrent in the invert-
er
The inverter resumes with its
startup routine.
Fault is rectified automatically;
if this status code is displayed
all the time: notify a Fronius-
trained service engineer.
302 Overcurrent (DC)
303
Power stage set overtempera-
ture
Short-term interruption while
feeding energy into the grid
due to overtemperature
The inverter resumes with its
startup routine.
Purge openings for cooling air
and heat sink if necessary;
fault is rectified automatically;
if this status code keeps recur-
ring, contact your system engi-
neer
304 Internal temperature too high
306
LOW PV OUTPUT
Intermediate circuit voltage
too low for feeding energy into
the grid
Short-term interruption while
feeding energy into the grid
The inverter resumes with its
startup routine.
Fault is rectified automatically;
if this status code occurs when
there is sufficient insolation,
contact your system engineer
307
LOW PV VOLTAGE
DC input voltage too low for
feeding energy into the grid
IMPORTANT! Due to the low level of insolation early in the morning and in the evening, the status codes 306
(LOW PV OUTPUT) and 307 (LOW PV VOLTAGE) are displayed routinely at these times of day. These status
codes do not indicate any kind of fault.
308 Intermediate circuit overvolt-
age
Short-term interruption while
feeding energy into the grid
The inverter resumes with its
startup routine.
Fault is rectified automatically;
if this status code is displayed
all the time: notify a Fronius-
trained service engineer.
309 DC input voltage too high
Code Description Behaviour Remedy
401
No communication with power
stage set possible
The inverter will automatically
attempt to connect again and,
if possible, will resume feeding
energy into the grid
If the status code is displayed
all the time: notify a Fronius-
trained service engineer
406
Power stage set temperature
sensor faulty
407
Internal temperature sensor
faulty
408
DC feeding into the grid detect-
ed