Siemens LMV51.140C1 - Page 189

LMVSeriesTechnicalInstructions 
DocumentNo.LV5‐1000
SCCInc. Page17 Section6
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b. MaketheburnerdrivetoPoint2immediatelyafterlightoff.Thiscanbedonebysetting
parameterStartPointOpto2usingthefollowingmenupath:

Params&Display>RatioControl>GasSettings>StartPointOp=2

18. Iftheburnerneedsairtemperaturecompensationafterlightoff(mostultra‐lowNOxmesh
burners),activateairtemperaturecompensation.Multiplemode
softemperature
compensationareavailable;themostoftenusedmodeis“IgnPtWithTC”.Thismodewillenable
temperaturecompensation afterlightoffandatPoint2beforetheO
2
trimengages.
Temperaturecompensatedlightoffcanbeactivatedusingthefollowingmenupath:

Params&Display>O2Contr/Alarm>GasSettings>Startmode>Startmode

NOTE:Airtemperaturecompensationrequiresanairtempera turesensorwiredtothe
LMV52.440.
See“O
2
TrimConfiguration(Parameterization)BeforeCommissioning”abovefor
moreinformation.

19. TheO
2
trimcannowbeactivatedinoneoftwomodes.Mode“conAutoDeac”allowstheO
2

trimtoworkaslongasthemeasured%O
2
doesnotexceedtherichlimit(O
2
Alarm)orthelean
limit(O
2
MaxValue).Ifeitheroftheselimitsisexceeded,theO
2
trimwilldeactivateandthe
burnerwillrunonthenormalRatioControlCurves.Mode“O2Control”alsoallowstheO
2
trim
towork,exceptthatifthelimitsareexceededalockoutwilloccur.Mode“conAutoDeac”is
typicallyused.TosettheO
2
controloperatingmode,usethefollowingmenupath:

Params&Display>O2Contr/Alarm>GasSettings>OptgMode

20. TheO
2
trimisnowcommissionedandactivated.Someadditionaltuningmayberequired
dependingontheapplication.See"PostCommissioningTuning"laterinthissectionformore
information.
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