SMA Sunny Boy Series - Operating Mode: Charging the Battery; Operating Mode: Switching Status Grid Relay

Multifunction Relay SMA Solar Technology AG
16 ZusFunktNG-TB-en-25 Technical Description
3.3.6 Operating Mode: Charging the Battery
In this operating mode, the multifunction relay switches once a set minimum power is exceeded.
Upon falling below the set power, the relay switches off. It can then only be switched again after a
set minimum time.
Parameter Setting via RS485
Parameter Setting via Bluetooth
3.3.7 Operating Mode: Switching Status Grid Relay
In this operating mode, the multifunction relay switches simultaneously with the grid relay of the
inverter. You do not need to set any parameters other than the operating mode.
Name Description Range Default value
Mlt.BatCha.Pwr Limiting value for switching the
relay in operating mode 'Charge
battery'
100 W to
nominal power
1,500 W
Mlt.BatCha.Tmm Minimum time between switching
the relay off and back on
1min to
1,440 min
30 min
Name Description Range Default value
Minimum On power for MFR
battery bank
Limiting value for switching the
relay in operating mode 'Charge
battery'
100 W to
nominal
power
1,500 W
Minimum time before
reconnection of MFR battery
bank
Minimum time between switching
the relay off and back on
1min to
1,440 min
30 min