Interval1Gas - 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
PrepurgePt1Gas (S)
Params & Display> PrepurgePt1Oil (S)
BurnerControl>
Times>
PrepurgePt3Gas (S)
TimesStartup1
PrepurgePt3Oil (S)
PreIgnitionTGas (S)
Params & Display>
PreIgnitionTOil (S)
BurnerControl>
Times>
TimesStartup1
MinOnTmeOilPump (S)
SafetyTme1Gas (O)
SafetyTme1Oil (O)
Interval1Gas (S)
Params & Display>
Interval1Oil (S)
BurnerControl>
Times>
SafetyTme2Gas (O)
TimesStartup2
SafetyTme2Oil (O)
MaxSafetyTGas (O)
MaxSafetyTOil (O)
Interval2Gas (S)
Interval2Oil (S)
SCC Inc.
Default Range
Sets the time the LMV5 stays in phase 30 on startups after a normal shutdown. Setting has
no effect on startups after a safety shutdown. If an Aux3 actuator is used, phase 30 is the
0.2s 0.2s-63min
time when the air actuator / VSD are at purge position and the Aux3 actuator is at home
position.
Sets the minimum time the LMV5 stays in phase 34 on startups after a normal shutdown.
Time will be longer if PrepurgeTmeGas(Oil) is set larger than PrepurgePt1Gas(Oil) +
0.2s 0.2s-63min PrepurgePt3Gas(Oil) . Setting has no effect on startups after a safety shutdown. If an Aux3
actuator is used, phase 34 is the time when the air actuator / VSD are at purge position and
the Aux3 actuator is also at purge position.
This defines the time the ignition transformer (OUTPUT X4-02.3) alone is energized before
2s 0.2- 63s
the pilot valve (OUTPUT X9-01.2) or main valves (for direct spark fuel trains) become
2s 0.2- 44s
energized. Sets the length of phase 38.
When LO w Gasp (Light Oil with Gas pilot) is selected, this is the minimum time the oil pump
5s 0.2-63s can run (OUTPUT X6-02.3) before the LMV5 attempts to light the pilot, (OUTPUT X9-01.2).
Time starts in phase 22, and will hold in phase 36 until this parameter times out.
When a fuel train with a pilot is used, this setting defines the overlap of the spark (OUTPUT
1-MaxSafety
5s
X4-02.3) and the pilot valve (OUTPUT X9-01.2). After this time expires, spark is de-energized
TGas
but the PV remains open if a flame is present. If a flame is not sensed, a lockout occurs. If
1-MaxSafety
directly spark igniting the main fuel, this defines the overlap of the spark and the main fuel
5s
TOil valves. This time is also known as TSA1. Sets the length of phases 40-42.
When a fuel train is selected that has a pilot, this setting defines the pilot stabilizing period.
2s
This time begins after SafetyTme1Gas(Oil ) expires. During this period, only the pilot valve is
0.2-63s
open. The spark is de-energized. If directly spark igniting the main fuel, this defines the main
2s
stabilizing period. Sets the length of phase 44.
1-MaxSafety When a fuel train with a pilot is used, this defines the overlap of the pilot (OUTPUT X9-01.2)
5s
and the main fuel valves. After this time expires the pilot is de-energized if continuous pilot
TGas
is not selected. Shorter times are more safe. No effect for fuel trains having direct spark
1-MaxSafety
5s
TOil ignition of main fuel. This time is also known as TSA2. Sets the length of phase 50.
10s 1-10s
Sets the maximum allowable time for SafetyTme1Gas(Oil) and SafetyTme2Gas(Oil) above.
15s 1-15s
Defines the main flame stabilizing period at ignition position before modulation. This time
2s
begins after SafetyTme2Gas(Oil) expires. During this period, only the main fuel valves are
0.2-630s
open. The pilot valve is de-energized unless continuous pilot is selected. No effect for fuel
2s
trains having direct spark ignition of main fuel. Sets the length of phase 52.
Page 8
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Description
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Technical Instructions
LV5-1000
LMV
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Section 3