Disabling Battery Charging by PV System in Battery-Backup Operation Mode

In battery-backup operation mode, the battery can be recharged with single-phase PV inverters. However, strong load and irradiation fluctuations can result in interruptions of 2 to 5 seconds in battery-backup operation mode. If this event occurs very frequently, you can disable recharging by the PV system during battery-backup operation mode. By disabling the recharging process, the inverter constantly increases the frequency to 54.5 Hz in battery-backup operation mode. This means that the inverter is permanently disconnected from the battery-backup grid. To disable recharging during battery-backup operation, proceed as follows.

The basic procedure for changing operating parameters is explained in another section Changing Operating Parameters).


  1. Select the parameter Deactivate battery charging in backup mode and set the parameter to On.