Step 2, Connecting A Module To A Power Optimizer; Step 3, Connecting Power Optimizers In Strings - SolarEdge Power Optimizer Installation Manual

Step 2, Connecting a Module to a Power Optimizer

Connect the Plus (+) output connector of the module to the Plus (+) input connector of the power
optimizer. Connect the Minus (-) output connector of the module to the Minus (-) input connector of the
power optimizer.
WARNING!
Verify that you have identified the inputs correctly. The power optimizer input cables are the short
ones. Do not connect modules to power optimizer outputs.

Step 3, Connecting Power Optimizers in Strings

►
To connect a string of modules:
1
Connect the Minus (-) output connector of the string's first power optimizer to the Plus (+) output
connector of the string's second power optimizer.
2
Connect the rest of the power optimizers in the string in the same way.
3
While the modules are exposed to sunlight, verify correct polarity by measuring the string polarity
with a voltmeter.
+ -
14
+ +
Output
-
Figure 6: Power optimizer connectors
+ -
Figure 7: Power optimizers connected in series
SolarEdge Power Optimizers Installation Guide – MAN-01-00112-1.2
Chapter 3: Power Optimizer Installation
+
I Input
-
C Connect to module