Sma SUNNY BOY User Manual download pdf (Page 36)

Measurement Channels and Messages SMA Solar Technology AG

36 SB_SMC-BEN092840 User Manual

Imax Overcurrent on the AC side. This fault code is displayed if the current in

the AC grid is greater than specified.

Corrective measures

• Please contact your installer to have the plant configuration and the

grid conditions checked.

Imax DC Overcurrent on the DC input side of the Sunny Boy Multi-String. A current

exceeding the maximum permissible value has been detected at the input

of the inverter.

Corrective measures

• Please contact your installer to have the plant configuration

checked.

K1-Close

K1-Open

K2-Open

Fault during relay test.

Corrective measures

• Please contact your installer or the SMA Solar Technology

Serviceline when this problem occurs several times in succession.

Kom DC-BFS Internal communication fault.

Corrective measures

• Please contact your installer or the SMA Solar Technology

Serviceline if this problem recurs.

L<->N L and N are swapped on the AC connection.

Corrective measures

• Please contact your installer to have the plant checked over.

L-Netz

L-WR

N-Netz

N-WR

A grid relay is faulty. The inverter checks the relays connecting it to the

grid before feeding power into the grid. If the grid relays do not function

properly, the inverter does not connect to the grid for safety reasons.

Corrective measures

• If this fault message is displayed repeatedly, it means that inverter

operation is permanently disabled. If the inverter is equipped with

a communication interface, the installer can try to rectify the fault

with the help of a communication product.

• Should this be unsuccessful, please contact the SMA Solar

Technology Serviceline.

Message Description and corrective measure

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Sma SUNNY BOY User Manual Page 36