Selecting DC Input Terminals
Number
of
Inputs
SUN2000 (Recommended
Connection Method)
1
Connects to (2b+, 2b–)
2
Connects to (1b+, 1b-)and
(2b+, 2b-)
3
Connects to (1b+, 1b-), (2a+, 2a-),
and (2b+, 2b-)
4
Connects to (1a+, 1a-), (1b+, 1b-),
(2a+, 2a-), and (2b+, 2b-)
9
Four DC Inputs Connection
Two DC Inputs Connection
The DC input terminals are selected as
follows.
If there are two PV strings, connect them to the two MPPTs respectively.
If there are more than two PV strings, it is recommended that PV strings with the same
number of PV modules connect to the same MPPT. If PV strings with different numbers of PV
modules connect to the same MPPT, energy yield loss will occur.
1a+ 1b+
1a-
1b-
2a+
2b+
2a-
2b-
Connecting DC Input Power Cables
