Install Manual

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manner.
WARNING!
If using a dual-input power optimizer and some inputs are not used, seal the unused input
connectors with the supplied pair of seals.
AVERTISSEMENT!
Si un optimiseur à double entrées est utilisé et que certaines entrées ne sont pas connectées,
fermez ces entrées avec la paire de couvercles fournie.
Figure 9: Power optimizers connected in series
3.
Ifyouintendtomonitortheinstallation,usingthemonitoringplatform,recordthephysicallocation
ofeachpoweroptimizer,asdescribedinCreatingLogicalandPhysicalLayoutusingInstallation
Informationonpage42.
Step 4: Verifying Proper Power Optimiser
Connection
Whenamoduleisconnectedtoapoweroptimizer,thepoweroptimizeroutputsasafevoltageof1V
(±0.1V).Therefore,thetotalstringvoltageshouldequal1Vtimesthenumberofpoweroptimizers
connectedinseriesinthestring.Forexample,if10poweroptimizersareconnectedinastring,then10V
shouldbeproduced.
MakesurethePVmodulesareexposedtosunlightduringthisprocess.Thepoweroptimizerwillonlyturn
ONifthePVmoduleprovidesatleast2W.
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.
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57.
-Single Phase Inverter with HD-Wave Technology Installation MAN-01-00541-1.0
20
Step 4: Verifying Proper Power Optimiser Connection