Fronius Power Control Card User Manual
Page 51
49
EN
The status indicator LED flashes rapidly (approx. twice every second)
Cause:
Contact faults, only in 4-relay mode (e.g. there is a break in the cable between
the ripple control signal receiver and the Fronius Power Control Card, or it has
not been connected)
Remedy:
Check cable and connections
Cause:
The ripple control signal receiver is faulty, only in 3 and 4-relay mode (e.g. no
relay has picked up or more than one relay has picked up).
Remedy:
Check cable and connections
Check relay functions on the ripple control signal receiver
Set the operating mode adjusting dial to 0 "Test mode";
if the LED is still flashing, an EEPROM error has occurred
Cause:
No ripple control signal receiver is connected in 4-relay mode.
Remedy:
Select "Operation without ripple control signal receiver" mode
Cause:
Internal error
Remedy:
Contact After-Sales Service
Cause:
Invalid relay state in CEI 0-21-compliant operation
(more than one relay has picked up or an invalid relay has picked up)
Remedy:
Check relays
NOTE! If the ripple control signal receiver is faulty, 100% of the maximum possi-
ble output power of the photovoltaic system is fed into the grid.