User Manual

DIR 1000587R0002 (L3821)
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3.2 Commissioning
3.2.1 Connections
Fortheconnectionsprovidedbyuser,therecommendationscontainedinthisdocumentmustbestrictlycompliedwith.Thiswillenable
ustomeetallinternationalreferencestandardsandensureperfectrelayoperationevenundersevereenvironmentalandelectromagnetic
conditions.Payspecialattentiontotypesofcables,connectionstoearthandrecommendedmaximumdistances.
3.2.1.1 Current sensor connection for external neutral conductor
Whenthecurrentsensorfortheexternalneutralconductorhastobeconnectedtoathree-polecircuitbreaker,remembertosetI
n
N
accordingly.Duringthisprocedure,thecircuitbreakermustbeopenandpreferablyisolated.
3.2.2 CS and TC connection check
If the LSIG-MM was installed by user, it is important, before closing the CB, to check the last line on the display when the relay
is turned on for the rst time via a battery power-supply unit. No CS and/or TC disconnected messages must appear; if they
do, do not close the circuit-breaker immediately and connect correctly.
3.2.3 Test
Beforecommissioning,atestcanbeconductedbymeansofthespecic“Autotest”functionwhichcan
beactivatedontheLSIG-MM.Apositiveresultisshownonthedisplay.
ThenatestcanbeconductedonthewholeTCchain,againusingaspecicfunction(Triptest).Apositive
resultisshownbycircuit-breakeropening.TorunaTripTest,pressthe“iTest”buttonandthe“Enter”
buttonsimultaneously.
Checkopenorclosedstateofcircuit-breakeronthesame“CBstatus”screen,bycheckingwhetherCB
isclosedandoff.
3.2.4 Initial settings
IftheLSIG-MMissuppliedinstalledinthecircuit-breaker,ABwillsetallvariablesreferringtothecircuit-breakerorspecicapplicationcorrectly
(e.g.typeofcircuitbreaker,RatingPlugsize,mainsfrequency...).
Iftheunitissuppliedseparately,userwillsetallnecessaryparameterscorrectly.
NotethatABdeneseachpossiblesettingaccordingtothecontentoftheparagraphofdefaultparameters(seepar.3.3.4).
Apart from this, it is absolutely indispensable for user to change the password and carefully dene each parameter that can
be changed, before commissioning the LSIG-MM.
3.2.5 Password management
Specifyapassword?[0***]
Toenter“EDIT”modeitisnecessarytoenterafour-gurenumericalpassword.Thevaluesofthepasswordthatcanbesetrangefrom0000to
9999.Forthedefaultpasswordseepar.3.3.4.
Selectthevalueoftherstgure(‘0’to‘9’)bymeansofthe↑ and↓ keysandpress ↵ toconrmthegureandthenproceedtoenterthenextone.
Afterenteringthefourthgure,checkthepasswordyouhaveentered.Ifthepasswordiscorrect,“READ”stateshiftsto“EDIT”state.
Ifthepasswordiswrong,themessage
Wrong password
appearsandremainsuntiltheESCkeyispressed(oruntilanintervalof5secondshaselapsed).
ItisalsopossibletodiscontinuepasswordentryprocedurebypressingtheESC key.
Disabling the Password.
Bysettingthevalueofthepasswordto[0000](onthe“UnitConguration”menu)passwordpromptisdisabled;therefore“READ”canalways
shiftto“EDIT”.
Toenteranewpassword,select“NewPassword”from“Settings/System”menu.
3.2.6 Replacing an electronic release
3.2.6.1 Installation
TocompletetheprocedureforinstallingLSIG-MM,takethefollowingsteps:
 1. Withthecircuitbreakeropenandpreferablyisolated,installtheprotectionunitonthecircuitbreaker
 2. PowertheunitONLYfromthebatteryunit
 3. Iftherearenoothererrors,thedisplaywillshowa
Congurationmessage(congurationerror)andtheyellowledglowspermanently
(warning)
 4. Entertheunit’s“Settings”menu
 5. Select“Circuit breaker”
 6. Select“Unit installation”
 7. Inputthepassword
 8. Select“Install”andpress “ENTER”
 9. Whentheredledashesonandoffand Installationmessage(installationerror)isdisplayed,removethebatteryunit
 10. Powertherelayfromanyothersource
Checkthattherearenocongurationerrors.
1/6
CB open
Auto Test
Trip Test (disabled)
CB status
Test