Mitsubishi Electric PV-PNS04ATL-IT Operation Manual page 106

PV-IB_IT＿英表示-3.3 08.3.6 10:14 ページ105
(5) Block diagram
The block diagram for the PV inverter is shown below.
From grid
Main relay
Grid relay
DC/AC
PV module
string
Model
PV-PNS03ATL-IT
PV-PNS04ATL2-IT
PV-PNS04ATL-IT
PV-PNS06ATL-IT
PV module PV module
string string
Number of PV module string
105
PV Inverter
Controller 2
Frequency monitoring,
Earth fault detect
Controller 1
Grid voltage, Frequency monitoring,
DC effluence detect,
Earth fault detect
2
3
Power switch
Stop Run
Display