Fronius String Control 250/30 DCD DF - Manual (Page 84)

82
Status diagnostics and troubleshooting
Safety
Status diagnos-
tics and trouble-
shooting
WARNING! An electric shock can be fatal. Danger from DC voltage in PV mod-
ules.
-
Make sure that both the input side and output side of the device are de-ener-
gised before attaching any connections.
- All connections must be made by qualified electricians.
- Note the safety rules in these operating instructions.
90x
Service codes from the Fronius String Control 250/30 DCD DF logged by the Datalogger
or sent according to the settings
x ... indicates the measuring channel
Cause: Excessive deviation from the set value on a measuring channel
x = 1 ... measuring channel 1
x = 2 ... measuring channel 2
x = 3 ... measuring channel 3
x = 4 ... measuring channel 4
x = 5 ... measuring channel 5
Remedy: Check the string fuses, check the solar module strings and
check the settings in the Fronius Solar.access software
No data is logged during the day
Cause: The Fronius Solar Net is open (the 'Connection' LED on the Da-
talogger lights up red)
Remedy: - Switch the jumper to restore the power supply manually
- Check leads, connections and power supply:
look for the fault from among the first Fronius String Control
250/30 DCD DF in OUT direction where the LED ‘X’ (1)
lights up red or there is no power supply
(1)