Sma SUNNY BOY Manual de usuario descargar pdf (Pagina 18)

Operating Modes SMA Solar Technology AG

18 SB_SMC-BEN092840 User Manual

3.4.4 The yellow LED blinks twice

Grid fault

The yellow fault LED lights up for 5 seconds when the fault occurs, and then starts emitting the

following blink code. 3 seconds off and then 2 brief consecutive blinks. This code is emitted 3 times

in succession. If this fault is still present, the fault signal starts over again.

With this fault signal the inverter indicates a grid fault which can have the following causes:

• Grid undervoltage (voltage drop protection)

• Grid overvoltage (voltage rise protection)

• Grid underfrequency (frequency decrease protection)

• Grid overfrequency (frequency increase protection)

• Grid frequency change ("dFac")

• Voltage increase protection activated

• Faulty grid connections, e.g. N and L swapped or PE not connected

(SMC 9000TL(RP) / 10000TL(RP) / 11000TL(RP): Display message <Check L-N-PE>)

• In systems which consist of 3 or more Sunny Mini Centrals, the Power Balancer has detected a

fault.

Correction of error by installer

Contact your installer to have the following points checked:

• Check whether there is a general power failure (check function of other energy

consumers).

• Check the fuse of the inverter power supply.

• Check whether the circuit breaker is switched on.

• Check the inverter's grid connection.

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Sma SUNNY BOY Manual de usuario Pagina 18