Legend To The Sequence Diagrams - Siemens LMV5 Series Basic Documentation

Legend to the sequence diagrams

Depending on the parameter, VP takes place:
between Ph62 and Ph70 or/and
between Ph30 and Ph32
Signal ON Signal OFF
0 – 3 s
0 – 30 s
0 – 3 s
1) Parameter: With / without PM
2) Parameter: Short / long preignition time for oil only
Short / long oil pump – ON – time
3) Delayed shutdown within TSA1 + TSA2
4) Parameter: Output as startup signal / PM relief valve
5) Parameter: Normal / direct startup
Normal startup → sequential phase = 10
Direct startup → sequential phase = 79
6) Sequential phase = 24
7) Only with valve proving during startup
8) Parameter: With / without alarm on prevention of startup
9) Parameter: With continuous purging
10) Fan controlled as before
Running time when LOCK OUT = T_FanLockout
11) Parameter: With / without extraneous light test in STANDBY
12) With valve proving during startup in the event of a deviation
Startup phase 10
13) Parameter: Normal / continuous purging
Normal purging: Checking for off in 10, Stop to
Ph-max time → 01
Continuous purging: Checking for on in 10 and
12, Stop up to Ph-max time → 01
"OilPressureMin", „akt_from_ts" → no check
14) Parameter:
before
TSA1 (LO, HO) or TSA2 (LOgp, HOgp)
„GasPressureMin", „deakt_xOGP" → PSmin can
15) Parameter:
be deactivated for oil programs with gas pilot
„OilPumpCoupling", „direct_coupl" → SVoil has
16) Parameter:
to be connected to output „Oil pump / magnetic
clutch". Output is active when fan is on and for
further 15 s after fan is switched off
17) Parameter: „Start / PSvalve", „PS_Reli_Inv"
→ Output PS valve will be logically inverted
18) Parameter: „Alarm act / deact", „deactivated"
→ The alarm output can temporarily be
deactivated (only for the current error)
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Next phase
00, Rep = 0
01
12, Rep > 0
Parameter direct start
Checking with controller on
Deviation → 10
No Rep. decrement
10
70
Without VP70 with VP80
62
Stop, up to Ph – max. time → 01
Stop, up to Ph – max. time → 10
00, Rep = 0
01
12, Rep > 0
00, Rep = 0
01
12, Rep > 0
00, Rep = 0
01
12, Rep > 0
79
Param.
10
Input: don´t care
Output: OFF
Output: ON
(when R = ON)
Basic Documentation LMV51...
4 Burner control
Assignment of times:
t0 Postpurge lockout position
t01 MaxT_SafetyPhase
t10 MinTimeHomeRun
t21 MinT_StartupRel
t22 FanRunupTime
t30 PrepurgePt1
t34 PrepurgePt3
t36 MinOnT_OilPump
t38 PreignitionT_Gas / Oil
t42 PreignitionT_Off
t44 Interval1 Gas / Oil
t52 Interval2 Gas / Oil
t62 MaxTimeLowFire
t70 AfterburnTime
t74 PostpurgeT1 Gas / Oil (tn1)
t78 PostpurgeT3 Gas / Oil (tn3)
t80 VP_EvacTime
t81 VP_TimeAtmPress
t82 VP_FillTime
t83 VP_TimeGasPress
tmx1 MaxDampRunTime
tmx2 MaxT_StartupRel
tmx3 MaxT_CircHOil
TSA1 SafetyTime1
TSA2 SafetyTime2
tv PrepurgeTime_Gas / Oil
Permissible positioning range
In Standby: actuator can travel within the permissible
positioning range, but is always driven to the home
position. Must be in the home position before changing
the phase
0° Position as supplied (0°)
90° Actuator fully open (90°)
FGR Flue Gas Recirculation
CPI Closed Position Indicator
AD Air damper
PS-VP Pressure Switch-Valve Proving
FCC Fan Contactor Contact
LF Low-fire position
APS Air Pressure Switch
PS Pressure switch
PoP Post-Purge position
HP Home position
SR Safety Relay
SLT Safety Limit Thermostat
TL Temperature Limiter
HF Pre-Purge position / pre-purge
IGN Ignition position
Repetition counter:
k) Heavy oil
l) Restricted startup behavior
n) Restricted safety chain
CC1P7550en
01.10.2003