
Connecting Multiple Units
975-0540-01-01 Revision B 2–15
This guide is for use by qualified personnel only.
Connecting Multiple Units
In a multiple-unit installation, each charge controller must be connected to a
separate PV array. See Figure 2-10. For other multiple-unit installation
considerations, see “Network Installation” on page 2–17.
PV ARRAY AND CHARGE CONTROLLER DAMAGE
Make sure that each charge controller is correctly connected to its own PV
array(s) and that no wires are interconnected between charge controllers.
Failure to follow these instructions can result in equipment damage.
Figure 2-10 Multiple unit DC wiring
++
––
Grounding not shown.
+
+
–
–
Incorrect wiring—
systems are
interconnected
Correct wiring—no
interconnection
between systems
PV Array #1 PV Array #2 PV Array #1 PV Array #2
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