SolarEdge UL1741-SA Installation Manual page 26

Single phase inverter with hdwave technology with setapp configuration

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In SolarEdge systems, due to the introduction of power optimizers between the PV

modules and the inverter, the short circuit current I

hold different meanings from those in traditional systems.

For more information about the SolarEdge system's string voltage and

current, refer to the V

available on the SolarEdge website at:

https://www.solaredge.com/sites/default/files/isc_and_voc_in_solaredge_

sytems_technical_note.pdf

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 Safety Switch.

For troubleshooting power optimizer operation problems, refer to Power Optimizer

Troubleshooting on page 65.

Single Phase Inverter with HD-Wave Technology Installation MAN-01-00541-1.4

and I

in SolarEdge Systems Technical Note ,

Chapter 2: Installing the Power Optimizers

and the open circuit voltage V

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Troubleshooting