Fronius Primo 5.0-1 - Class 3 Service Codes

93
EN
Class 3 service
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.
108 Stand-alone operation de-
tected
1. Stand-alone operation de-
tected
1. Automatic correction
2. Serious fault in public grid 2. Automatic correction
3. Poor contact: wall bracket <-
-> filter PC board
3. Check fixing screws in the
DATCOM area
4. Grid impedance is outside
permissible range
4. Contact energy supplier
5. Poor AC connection 5. Check AC connection
6. Ripple control signals 6. Report to Fronius Technical
Support specialists
7. Measurement fault on filter
PC board
7. Replace filter PC board
Code Description Behaviour Remedy
Code Description Behaviour Remedy
301 Current peaks detected in
grid
1. Voltage drop in the public
grid
1. Automatic correction
2. Grid impedance is outside
the permissible values
2. Contact energy supplier
3. Poor contact: wall bracket <-
-> inverter
3. Check fixing screws in the
DATCOM area
4. Measurement fault on filter
PC board
4. Replace filter PC board
5. Incorrect power limit on de-
vice
5. Replace power stage set
302 Current peaks detected in
PV generator
1. Poor contact: wall bracket <-
-> inverter
1. Check fixing screws in the
DATCOM area
2. Voltage drop in the public
grid
2. Automatic correction
3. Measurement fault on power
stage set
3. Replace AC PC board. Oth-
erwise, replace DC PC board
303 Heat sink temperature too
high
1. Ventilation opening blocked 1. Clean openings
2. Ambient temperature too
high
2. Change installation site
3. Internal or external fan not
connected
3. Connect fan cable
4. Faulty internal or external
fan
4. Replace the fan
5. Poor contact: power stage
set <--> heat sink
5. Check phase change paste
6. Measurement fault on power
stage set
6. Replace AC PC board
7. Faulty fan output on Recer-
bo
7. Replace Recerbo