Siemens LMV51.140C1 - Loadmaskhighlim

LMV Series
Technical Instructions
LV5-1000
Menu Path Parameter Default Range Description
51.1 52.2 52.4
LEGEND - Password Access: (U)=User, (S)=Service, (O)=OEM, Shaded = Commonly Used, ** = Must Set, X = Has Function, / = Partial Function
LMV
LoadMaskLowLimit (S) 0%
0-LoadMask
HighLim
x x x
LoadMaskHighLim (S) 0%
LoadMask
LowLimit -
100%
x x x
AuxActuator (O) deact
deactivated
damper act
VSD active
AUX3
VSD+Aux3
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.
/
GasActuator (O) activated
activated
deactivated
x x x
OilActuator (O) activated
activated
deactivated
x
x x
StartPoint Op (S) 1 1-15
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.
x x x
Params & Display>
RatioControl>
Gas/Oil Settings>
Load mask out
VSD (S)
AuxActuator 1 (O)
AuxActuator 2 (O)
AuxActuator 3 (O)
These settings allow a masking of a particular load range. T
his 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.
AirActuator (O)
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.
Params & Display>
Ratio Control>
Gas/Oil Settings
air influen
air influen
deact
deact
air influen
activated
deactivated
air influen
x
x x
x x
x x
x x
x
x
SCC Inc. Page 20 Section 3
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