7-EN
The maximum number of units (string inverters or/and 55kW conversion modules) that can be
connected to a RS485 port of the PVI-AEC-EVO is 62.In order to connect a number of units greater
than62 itis necessaryto use thesecondRS485/2port respectingthe same wiringdiagramusedfor
themainRS485/1port.
When connecting multiple units (string inverter or/and 55kW conversion modules) it is necessary
towiretheRS485communicationlineaccordingtothedaisy-chaindiagram(enter-exit).
Thelastinverterofthe daisy-chainmustbe'terminated'byactivatingtheterminationresistanceof
the120 communicationline throughswitchingthe dip-switch locatedonthe motherboard inthe
stringinverters,andinsideeachframeworkofthecentralinverters.
Ω
In case of mixed systems, the presence of both string inverters and central inverters on the same
RS485lineispermitted.Towirethislinefollowallthedirectionsabove.
For further details on the wiring of the RS485 line and/or the activation of the termination
resistances,refertotheusermanualofstringinvertersandtotheusermanualofcentralinverters.
All inverters (except for models PVI-5000/6000) have a clamp that allows giving continuity to the
cablescreenoftheRS485line.
For single-phase inverters this clamp is indicated by the words LNK, for three-phase inverters it is
indicatedbySCLDandforcentralinvertersbyX23.