Numfuelactuators - 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
Params & Display>
Autom/Manual/Off (U)
RatioControl
OperatRampMod (S)
Params & Display>
RatioControl>
OperatRampStage (S)
Times
TimeNoFlame (S)
NumFuelActuators (O)
ShutdownBehav (S)
Params & Display>
RatioControl
ProgramStop (S)
Pos. Tolerance (O)
SCC Inc.
Default Range
Three options exist:
1) Automatic - Enables the burner allowing it to respond to setpoints and switch on / switch
Automatic off points.
Automatic Burner off 2) Burner off - Manually turn the burner off.
3) Manual - Enables the load of the burner to be set with SetLoad . When in manual,
Manual
setpoints and switching points are ignored. If terminal X5-03.1 (burner switch) is enabled, it
must be energized for the LMV5 to start regardless of parameter setting.
Controls the speed at which the actuators / VSD will ramp during phase 60-62 (fuel valves
30s 30-120s open). Higher numbers are slower ramps. Set for slowest actuator.
(SQM45 - 10s, SQM48.4 - 30s, SQM9 - 30s, SQM48.6 - 60s)
10s 10-60s Controls the speed at which the LMV5 will ramp in multistage operation.
Controls the speed at which the actuators / VSD will ramp when the fuel valves are closed.
10s 10-120s Higher numbers are slower ramps. Set for slowest actuator.
(SQM45 - 10s, SQM48.4 - 30s, SQM9 - 30s, SQM48.6 - 60s)
Setting is avalable so that a single fuel actuator could be used for a gas and oil valve on a
2 1-2
common shaft. Also useful if firing 2 gaseous fuels with the same firing rate control valve.
HomePos
Controls the position of the actuators / VSD when a lockout occurs. Set to the safest option
HomePos PostpurgeP
for the burner.
Unchanged
For gas or oil firing, this parameter will stop the sequence in the selected phase. Useful for
commissioning and service work.
See
deact The LMV5 can be held in the following phases: 24 Prepurge, 32 Prepurge FGR, 36 Ignition
Description
Position, 44 Interval 1 (pilot stabilize), 52 Interval 2 (main flame stabilize), 72 Postpurge
Position, 76 Postpurge FGR. Stop can also be deactivated.
Sets the allowable tolerance on actuator positions and VSD speed. A setting of 0.3°/0.5%
0.3-1.2°/ means that all actuators must be within +/-0.3° of their required positions, and the VSD must
0.3°/0.5%
0.5-1.2% be within +/-0.5% of its required speed. Can be increased from the default values to
eliminate nuisance lockouts from a fluttering damper.
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Section 3