Procedure

The following steps must be taken to set up a multiple-inverter connection with KOSTAL inverters:

• Install all KOSTAL inverters in the house grid (see circuit diagram at the beginning)
• Install KOSTAL Smart Energy Meter at the grid connection point (see circuit diagram at the beginning)
• Connect all devices to the KOSTAL Smart Energy Meter and the Internet via LAN
• If a hybrid/battery inverter with connected battery is being used, also connect this to the KOSTAL Smart Energy Meter via the RS485 interface
• If a PIKO MP plus is being used (only for multiple-inverter connection without battery), also connect this to the KOSTAL Smart Energy Meter via the RS485 interface
• When using a hybrid/battery inverter with connected battery, enable storage of excess AC energy from local generation
• Activate Modbus protocol in PIKO IQ, PLENTICORE
• Configure the settling time in the KOSTAL inverters (see guide)
• Set up all KOSTAL inverters in the KOSTAL Smart Energy Meter
• Set power limitation/feed-in capacity limitation for the grid connection point in the KOSTAL Smart Energy Meter.
  Note: If there is a PIKO CI in the group of devices, it is not controlled by the KOSTAL Smart Energy Meter. The power limitation should be configured in the PIKO CI for all inverters. The KOSTAL Smart Energy Meter then simply serves as a monitoring connection.
• Assign all KOSTAL inverters and the KOSTAL Smart Energy Meter to a PV system in the KOSTAL Solar Portal