Loadmaskhighlim - Siemens LMV5 Series Technical Instructions
Linkageless burner management system
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- Basic documentation (278 pages) ,
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- Manual (39 pages)
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LMV Series
LEGEND - Password Access: (U)=User, (S)=Service, (O)=OEM, Shaded = Commonly Used, ** = Must Set, X = Has Function, / = Partial Function
Menu Path
Parameter
LoadMaskLowLimit (S)
Params & Display>
RatioControl>
Gas/Oil Settings>
LoadMaskHighLim (S)
Load mask out
AuxActuator (O)
AirActuator (O)
AuxActuator 1 (O)
AuxActuator 2 (O)
Params & Display>
Ratio Control>
Gas/Oil Settings
AuxActuator 3 (O)
GasActuator (O)
OilActuator (O)
StartPoint Op (S)
SCC Inc.
Default
Range
0-LoadMask
0%
HighLim
LoadMask
0%
LowLimit -
100%
deactivated
damper act
deact
VSD active
AUX3
VSD+Aux3
air influen
air influen
activated
deact
deactivated
air influen
deact
VSD (S)
air influen
activated
activated
deactivated
activated
activated
deactivated
1
1-15
These settings allow a masking of a particular load range. This is useful for combustion
resonances that occur at a particular load (firing rate). For example: if LoadMaskLowLim is
set to 32% and LoadMaskHighLim is set to 42%, the LMV5 will modulate from 32% to 42%
without stopping.
Sets the mode of the auxiliary actuator on an LMV51.
deactivated - an auxiliary actutor is not being used.
damper act - an auxiliary actuator is being used.
VSD active - only used on an LMV51.3.
AUX3 - only used on an LMV51.3.
VSD+Aux3 - only used on an LMV51.3.
Actuators or VSD can be activated, deactivated, or set to air Influenced seperately for each
fuel, thus each fuel can have a different setting. The air influenced setting is used to
designate which actuators (VSD) will be trimmed if O2 trim is used. The air influenced option
is only available on LMV52 for actuators other than the fuel actuator(s). Parameter
GasActuator or OilActuator will appear based upon which fuel is selected at the time of
parameter setting. If an actuator is set to air influenced or activated and is not connected to
the LMV5 and addressed, a lockout will occur.
This parameter controls what curve point the LMV5 drives to after main flame ignition.
Setting does not affect burner turndown. Typically this is set to low fire (point 1). Some
burner designs require a point higher than point 1 after lightoff. Highest possible point is 15
or the highest point that is set.
Page 20
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