16
Troubleshooting
General
The LED status indicator lights up and flashes to indicate errors.
Troubleshoo-
ting
The LED status indicator lights up red
Cause:
A Fronius Power Control Box is already in the Fronius
Solar Net.
Remedy:
Check Fronius Solar Net, remove Fronius Power
Control Box
Cause:
An error has occurred in the Fronius Solar Net (e.g.
an interruption).
Remedy:
Check Fronius Solar Net, rectify cause of interruption;
check whether terminating plugs are connected to
free Fronius Solar Net connections on the DATCOM
components
The LED status indicator flashes quickly (approx. twice every
second)
Cause:
Contact fault, only in 4-relay mode
(e.g. break in cable(s) from ripple control signal recei-
ver to Fronius Power Control Box or cable(s) not
plugged in)
Remedy:
Check cables and connections
Cause:
The ripple control signal receiver is faulty, only in 3-
relay and 4-relay mode
(e.g. no relay is actuated or more than one relay is
actuated).
Remedy:
Check cables and connections
Check relay functions on the ripple control signal
receiver
Set the operating mode adjusting dial to „Test mode“
0; if the LED is still flashing, an EEPROM error has
occurred
Cause:
EEPROM error
Remedy:
Contact After-Sales Service
Important!
If the ripple control signal receiver is faulty, 100 % of the maxi-
mum possible output power of the photovoltaic system is fed into the grid.
The LED status indicator flashes slowly (approx. every 2 seconds)
The power supply company has issued a power limitation.
(no error)
A power limi-
tation is en
effect
Summary of Contents for Power Control Box
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