Status Diagnosis And Troubleshooting; Displaying Status Codes; Total Failure Of The Display; Class 1 Status Codes - Fronius Symo Serie Instructions De Service

Status Diagnosis and Troubleshooting

Displaying Sta- Your inverter is equipped with a self diagnostic system that automatically identifies a large
tus Codes number of possible operation issues by itself and displays them on the screen. This en-
ables you to know immediately if there are any malfunctions in the inverter, the photovoltaic
system or any installation or operating errors.
Whenever the self diagnostic system has identified a particular issue, the respective status
code is shown on the screen.
IMPORTANT! Status codes may sometimes appear briefly as a result of the control re-
sponse from the inverter. If it subsequently continues to operate normally, there has not
been a system error.
Total Failure of If the display remains dark for a long time after sunrise:
the Display -
Class 1 Status Status codes in class 1 are typically temporary. Their cause lies in the grid.
Codes
Example: the grid frequency is too high and the inverter is not permitted to feed energy into
the grid because this would not comply with a standard. No device fault has occurred.
The inverter will first respond by disconnecting from the grid. Then, the grid will be checked
for the duration of the observation period stipulated. If, after the end of this period, no fur-
ther defect is identified, your inverter resumes operating and feeding energy into the grid.
The GPIS soft start function is activated depending on the country setup:
according to national guidelines, the output of the inverter increases continuously after a
shutdown due to an AC error.
Code Description
102 AC voltage too high
103 AC voltage too low
105 AC frequency too high
106 AC frequency too low
107 No AC grid detected
108 Stand alone operation detect-
ed
112 RCMU error
50
Check the AC voltage at the inverter's connections:
the AC voltage must be 208/220/240/440/480 V (+10%/-12%) depending on the grid.
Behavior
Grid conditions are being test-
ed and as soon as they are
again within the permissible
range, the inverter will resume
feeding power into the grid.
Remedy
Check grid connections.
If this status code keeps recur-
ring, contact your system in-
staller.