Installation Guide

In SolarEdge systems, due to the introduction of poweroptimizers between the PV
modules and the inverter, the short circuit current I
SC
and the open circuit voltage V
OC
hold different meanings from those in traditional systems.
For more information about the SolarEdge system’s string voltage and
current, refer to the V
OC
and I
SC
in SolarEdge Systems Technical Note ,
available on the SolarEdge website at:
https://www.solaredge.com/sites/default/files/isc_and_voc_in_solaredge_sytems_
technical_note.pdf .
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To verify proper power optimizer connection:
Measure the voltage of each string individually before connecting it to the other strings
or to the inverter. Verify correct polarity by measuring the string polarity with a
voltmeter. Use a voltmeter with at least 0.1V measurement accuracy.
NOTE
Since the inverter is not yet operating, you may measure the string voltage and
verify correct polarity on the DC wires inside the StorEdge Connection Unit.
For troubleshooting power optimizer operation problems, refer to Power Optimizer
Troubleshooting on page 124.
StorEdge Solution with Backup MAN-01-00262-1.5
30 Step 4: Verifying Proper Power Optimizer Connection