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).

Procedure:

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