Use With Solar Modules That Do Not Need To Be Grounded - Delta RPI M50A_120 Installation And Operation Manual

For currents and voltages see
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 con-
nected to a separate MPP tracker. "Parallel DC
inputs" means both DC inputs are connected to one
MPP tracker. With parallel DC inputs you cannot real-
ize asymmetrical power inputs.
PV arrays can be connected to the inverter directly or externally parallel connection at DC distribution box.
AC wiring
3P3W 3P4W
1 - L1 1 - L1
2 - L2 2 - L2
3 - L3 3 - L3
4 - N - PE
5 - PE
OFF ON
DISCONN.
AC/DC
Installation and Operation Manual for RPI M50A
"13. Technical data", p.
DC wiring
– +
DC 1
AC OUTPUT
Fig. 5.15: System design with fl oating DC inputs
5 Planning the installation
105.
PV array
– + – + – +
DC 2
DC INPUT
Separate or
parallel DC inputs
COMM.
27