Overview of ripple control receiver connection via CEI control signals for Italy
For Italy, the ripple control receiver is connected as follows.
1 | Terminal X403 |
2 | Control line from ripple control receiver to inverter with sealing ring and union nut |
3 | Ripple control receiver Italy |
INFO

For Italy (standard CEI0-21), there must be no voltage applied to terminal X403 (VDD).
Connection to an external voltage source and a changeover switch to GND is mandatory here.