Delta SI 5000 Operation And Installation Manual

41
ThesolarinvertermustbeearthedviatheACconnector’sPEconductor.Todothis,connectthePE
conductortothedesignatedterminal.Ifyouwishtointegratemorethanoneinverterintotheinstal-
lation,pleaseproceedasillustratedinthedrawingsintheappendix.
Pleasenotethecablelengthandthecablecross-section,duetotheriskofundesirabletemperature
riseandpowerlosses.
Pleasenotethecablelengthandthecablecross-section,duetotheriskofundesirabletemperature
riseandpowerlosses.
6.7 ConnectionofPVmodules
Beforethephotovoltaicsystemisconnected,thepolarityofthePVvoltageattheTycoconnectors
mustbecheckedtoensurethatitiscorrect.Theconnectorsarecolourcodedred(+)andblue(-).
TheconnectionofthePVmoduleisimplementedusingaTycoSolarlokconnector,wheretheminus
poleislocatedontheconnectorupperrowandthepositivepoleontheconnectorlowerrow.
Theconnectorsarecodedtopreventyoufromaccidentallypluggingthemintothewrongterminal.
Pleaseensurethefollowingatalltimes:
•thatthereisneveranyriskofanyonecomingintocontactwiththesolarinverterconnection
 terminals,duetotheriskofdangerousvoltagesacrossthem.
•thatundernocircumstancesthePVmodulesaredisconnectedfromthesolarinverterunder
load.Ifadisconnectionshouldbenecessary,rstswitchthenetworkoffsothatthesolarinver-
tercannotabsorbanyfurtherpower.Next,opentheupstreamDCdisconnectswitch.
ThesolarinverterisequippedwiththeconnectorconnectionsystemfromthecompanyTyco.The
maximuminputvoltageofthesolarinverteris540V.Themaximumcurrentloadofeachindividual
Tycoconnectoris25A.Thisisparticularlyimportantforthemaximumcurrentof36.6A.Theinput
currentmayhavetobedistributedacrossseveralTycoinputconnectors.
ThesolarinverterhasaninsulationandgroundingmonitoringontheDCside.Theoptionscanbe
conguredintheSetupmenu“6.S->SolarISO/GND”(seepage51,section7.3.7).
Theinsulationmonitoringhastwomodes:
•ISO-ON-Error(thesolarinverterisdisconnectedfromthemainsintheeventofaninsulation
 fault)
•ISO-ON-Warning(thesolarinverterindicatesthefaultbutisnotdisconnectedfromthemains).
Thesolarinvertersarefactory-settoISO-ON-Warningmodeondelivery.
Thegroundingmonitoringhastwomodes:
•PV+grounding(groundingmonitoringofthepositivepoleofthePVgenerator)
•PV-grounding(groundingmonitoringofthenegativepoleofthePVgenerator).
Inthesemodesthesolarinverterremainsinfeed-inoperationandwillnotbedisconnectedfrom
themainsincaseofafault.Theerrormessage“PV+groundingfault”or“PV-groundingfault”will
appearonthedisplay.
IfyouneedtoconnectthepositiveornegativepoleofthePVsystemtomeetrequirementsset
outbythemodulemanufacturer,youcandothis.Earthcontinuitymustbeimplementedcloseto
theinverter.WesuggestusingDeltasgroundingkit“GroundingSetASolar”(EOE99000115).The
groundingconnectionismonitoredandshouldbeconguredintheSetupmenu(seeabove).

Delta SI 5000 Specifications

General

Brand	Delta
Model	SI 5000
Category	Inverter
Language	English