Primo Operating Instructions

22
Connecting just one string to a Multi MPP Tracker in-
verter
If only one string is used for connection to
the inverter, connection DC+1 (pin 2) and
DC+2 (pin 1) must be bridged.
The cable cross-section of the DC connec-
ting line and bridging wire must be the sa-
me. Bridging the DC terminal is not
necessary because it is bridged internally.
Set MPP TRACKER 2 to "OFF" when star-
ting for the first time (also possible in the ba-
sic menu subsequently).
If the Multi MPP Tracker inverter is opera-
ted in Single MPP Tracker mode, the cur-
rents of the connected DC lines are
distributed evenly across both inputs.
Multi MPP Track-
er Inverter – Fro-
nius Primo 10.0–
15.0
Multi MPP Tracker inverters have 2 independent DC inputs (MPP Tracker). These inputs
can be connected to a number of different modules.
MPP Tracker 1 has 4 DC+ terminals.
MPP Tracker 2 has 2 DC+ terminals.
There are a total of 6 DC- terminals.
Connecting 2-6 strings in Multi MPP Tracker mode:
Connecting two solar module fields to a Multi MPP
Tracker inverter
Connect the strings separately to the two
MPP Tracker inputs (DC+1/DC+2). The
DC- terminals can be used as desired, sin-
ce they are connected internally.
Set MPP TRACKER 2 to "ON" when star-
ting for the first time (also possible in the ba-
sic menu subsequently).
PV 1
1
DC+1
DC-1
DC+2
DC-
1
1234
22
D1
D1
=
*
DC+1
max. 36 A to
a single
DC terminal
WHEN ONLY ONE STRING IS USED
*
DC-1
PV 1PV 1
PV 2
DC+1
DC-2
DC+2
MPP1: each Terminal
I
max
= 15 A
1
DC
DC
+1
+1
DC
DC
+2
+2
DC
DC
-1
-1
DC
DC
-2
-2
2
123412
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