Delta RPI M30A_120 Operation And Installation Manual page 23

AC Wiring
1
Isolated
transformer
Utility
3Ph,
400Vac
1A
Grounding fuse
To
Inverter
3Ph,
400Vac
Figure 4-4 : Plus grounding of M30A
Do not enable the PID function
and set the insulation with "Plus
Grounded" or "Minus Grounded".
DC Wiring
2
Separated
connection only
3 Communication
Wiring
with fuse
_120
23
Wiring
DC1+
DC2+
DC1-
bus bar kit *2
DC2-