Delta RPI M50A

Figure 4-6 Plus or minus grounding wiring of M30A_121
Communication
Wiring
1
3
PV Array
AC Wiring
Must be Parallel
Connection
Do not enable the PID function and set
the insulation with “Plus Grounded” or
“Minus Grounded”.
DC Distribution box
(Plus-GND or Minus-GND)
Z
Z
or
Isolated
transformer
Utility
To
Inverter
3Ph,
400Vac
3Ph,
400Vac
Must install a
transformer
2
DC Wiring
22
Wiring