Fronius Symo 3.0-3-S Serviceanleitung Seite 85

Code Description
108 Islanding detected
112 RCMU Error
Service class 2
Code Description
240 AFCI tripping
241 - 242 AFCI tripping
245 AFCI selftest fail
247 AFCI currentsensor fail
Service class 3
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.
Code Description
301 Current peak on the mains
supply detected
Behaviour
1. Islanding detected
2. Severe disturbances in pub-
lic mains
3. Bad contact: wall bracket <-
> filter board
4. Grid Impedance out of per-
mitted values
5. Bad AC connection
6. Ripple control signals
7. Measuring error on the filter
board
1. Old filter board software
(<4.6)
2. Permanent grounding error
Behaviour
No error, AFCI tripped. Error
visible for 4 Seconds then 241
Arc occurred, to resume opera-
tion press enter twice (first 242
then operation is resumed)
1. Selftest routine failed due to
detection failure
1. Data from primary and sec-
ondary current sensor don't
correspond
Behaviour
1. Voltage drop on the public
mains
2. Grid Impedance out of per-
mitted values
3. Bad contact: wall bracket <-
> inverter
4. Measuring error on the filter
board
5. Wrong power limit on device
Remedy
1. Automatic correction
2. Automatic correction
3. Check AC wall bracket
screws
4. Contact utility
5. Check AC connection
6. Report to TSI specialist
7. Change filter board
1. Software update
2. Check AC / DC connections
Remedy
Automatic correction
Check PV generator
1. Restart inverter or do a soft-
ware update
2. Change filter board
1. Restart inverter or do a soft-
ware update
2. Change filter board
Remedy
1. Automatic correction
2. Contact utility
3. Check AC wall bracket
screws
4. Change filter board
5. Change AC board
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