Installation Guide

Problem
Possible cause and
troubleshooting
Stringvoltageishigherthannumberofoptimizers
WARNING!
Ifthemeasuredvoltageistoohigh,theinstallation
maynothaveasafelowvoltage.PROCEEDWITH
CARE!Adeviationof±1%perstringisreasonable.
Si la tension mesuree est trop haute, la tension basse
de securite pourrait manquer dans l’installation.
REDOUBLEZ DE PRECAUTION. Une deviation de
±1% par string est raisonnable.
Extrapoweroptimizer(s)connectedinthe
string(notapplicabletosmartmodules).
Checkifanextrapoweroptimizerisconnected
inthestring.Ifnot–proceedtonextsolution.
Amoduleisconnecteddirectlytothestring,
withoutapoweroptimizer(notapplicableto
smartmodules).
Verifythatonlypoweroptimizersare
connectedinthestringandthatnomodule
outputsareconnectedwithoutapower
optimizer.Iftheproblempersists,proceedto
thenextstep.
Poweroptimizer(s)malfunction.

o
Disconnectthewiresconnectingthepower
optimizersinthestring.

o
Measuretheoutputvoltageofeachpower
optimizertolocatethepoweroptimizerthat
doesnotoutput1Vsafetyvoltage.Ifa
malfunctioningpoweroptimizerislocated,
checkitsconnections,polarity,module,
andvoltage.

o
ContactSolarEdgeSupport.Donot
continuebeforefindingtheproblemand
replacingthemalfunctioningpower
optimizer.Ifamalfunctioncannotbe
bypassedorresolved,skipthe
malfunctioningpoweroptimizer,thus
connectingashorterstring.
Appendix A: Errors and Troubleshooting
Single Phase Inverter with HD-Wave Technology Installation MAN-01-00306-1.1
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