5 Planning the installation
Installation and Operation Manual for RPI M6A M8A M10A inverters V1.0 2016-02-03
28
5.8.2 Use with solar modules that do not need to
be grounded
When you use PV modules that do not need to be grounded, you
can connect the DC inputs separately or in parallel.
“Separate DC inputs” means each DC input is connected to a
separate MPP tracker. “Parallel DC inputs” means both DC inputs
are connected to one MPP tracker. With parallel DC inputs you
cannot realize asymmetrical power inputs.
PV array can be connected to the inverter directly or via an exter-
nal DC distribution box.
1 - L
2 - N
5 - PE
+
–
PV array
AC wiring
Separate or
parallel DC inputs
DC wiring
Fig. 5.14: System design with oating DC inputs
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