Stageload - Siemens LMV5 Series Technical Instructions

LMV Series
LEGEND - Password Access: (U)=User, (S)=Service, (O)=OEM, Shaded = Commonly Used, ** = Must Set, X = Has Function, / = Partial Function
Menu Path Parameter
SD_Stage3Off (U)
Params & Display>
LoadController> ThreshStage2On (U)
ControllerParam
ThreshStage3On (U)
TL_ThreshOff (S)
Params & Display>
LoadController>
TempLimiter
TL_SD_On (S)
ColdStartOn (S)
ThresholdOn (S)
Params & Display>
StageLoad (S)
LoadController>
ColdStart
StageSetp_Mod (S)
StageSetp_Stage (S)
SCC Inc.
Default Range
Determines what temp. / press. a staged oil burner will disengage stage 3. Set at a positive %
6% 0-50% so that the boiler will turn off stage 3 oil at a set % above the current setpoint. Percentage
based on current setpoint.
This value is the integral of a control deviation multiplied by time. This serves to not call on
300 0-1000 stage 2 unless the pressure / temperature deviates from the desired setpoint for a length of
time and/or by a large margin.
This value is the integral of a control deviation multiplied by time. This serves to not call on
600 0-1000 stage 3 unless the pressure / temperature deviates from the desired setpoint for a length of
time and/or by a large margin.
Temperature limiter function. If a temperature sensor is used (connected to INPUT X60), this
parameter controls at what temperature the burner goes into alarm and shuts down due to
203 F 32-3632 F an over-temperature situation.
The LMV5 locks out. The LMV5 can only be reset when the temperature goes below
TL_SD_On . Not applicable for steam boilers.
Creates a negative deadband for the temperature limiter function. If the temperature
reaches the threshold off value (TL_ThreshOff ), the burner will shut off with an alarm. This
-5% -50-0%
setting controls what temperature under the threshold off value the burner can be restarted.
Not applicable to steam boilers.
activated Activates or deactivates cold start thermal shock protection (low fire hold), based on temp.
deact
deactivated or press. for a steam boiler, and temp. for a hot water boiler.
This is the temp. / press. below which cold start will engage. Above this temp. /press. the
20% 0-100%
cold start will not engage. The value is a percentage of the current setpoint.
This sets the % load of the "load step" for a stepping cold start. If the burner is to be held at
15% 0-100%
low fire (low fire hold) until the ThresholdOff value is reached, set at 0%.
For modulating burners, this is how much the temp. / press. must increase before the next
5% 1-100% load step is triggered. This is a percentage of the current setpoint. Can be set to 100% if a
burner is to be stepped by time only.
For staged burners, this is how much the temp. / press. must increase before the next burner
5% 1-100% stage is released. This is a percentage of the current setpoint. Can be set to 100% if a burner
is to be stepped by time only.
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Technical Instructions
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Section 3