SMA POWER BALANCER - Manual (Page 17)

SMA America, LLC Configuration
Installation Guide SBUS-PowBal-IUS102810 17
5.1.4 Fault Guard
This operating mode enables the implementation of three-phase grid voltage monitoring that
also reacts to device failures.
– If one of the 3 inverters indicates a grid voltage fault and stops feeding in, the other two
inverters also disconnect from the grid immediately.
– If one of the 3 inverters indicates a device fault and stops feeding in, the other two inverters
also disconnect from the grid with a delay of 5 minutes.