Class 3 Status Codes; Class 4 Status Codes - Fronius Galvo 1.5-1 Operating Instructions Manual

Class 3 status Class 3 includes status codes that may occur while feeding energy into the grid, but gen-
codes 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.
Code Description
301 Overcurrent (AC)
302 Overcurrent (DC)
Power stage set overtempera-
303
ture
304 Internal temperature too high
LOW PV OUTPUT
Intermediate circuit voltage
306
too low for feeding energy into
the grid
LOW PV VOLTAGE
307 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
309 DC input voltage too high
Class 4 status Some of the class 4 status codes necessitate intervention by a Fronius-trained service en-
codes gineer.
Code Description
No communication with power
401
stage set possible
Power stage set temperature
406
sensor faulty
Internal temperature sensor
407
faulty
DC feeding into the grid detect-
408
ed
44
Behaviour
Short-term interruption while
feeding energy into the grid
due to overcurrent in the invert-
er
The inverter resumes with its
startup routine.
Short-term interruption while
feeding energy into the grid
due to overtemperature
The inverter resumes with its
startup routine.
Short-term interruption while
feeding energy into the grid
The inverter resumes with its
startup routine.
Short-term interruption while
feeding energy into the grid
The inverter resumes with its
startup routine.
Behaviour
The inverter will automatically
attempt to connect again and,
if possible, will resume feeding
energy into the grid
Remedy
Fault is rectified automatically;
if this status code is displayed
all the time: notify a Fronius-
trained service engineer.
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
Fault is rectified automatically;
if this status code occurs when
there is sufficient insolation,
contact your system engineer
Fault is rectified automatically;
if this status code is displayed
all the time: notify a Fronius-
trained service engineer.
Remedy
If the status code is displayed
all the time: notify a Fronius-
trained service engineer