Siemens LMV50 Series Manual page 23

Block diagram (cont'd)
Power signal for
air pressure switch (LP)
Power signal for
controller contro
Power signal for
start release oil
Power signal for
heavy oi - direct start
Power signal for
oil pressure switch-min
Power signal for
oil pressure switch-max
Power signal for
start release gas
Power signal for
pressure switch
Neutral conductor
Power signal
transformer
AC power signal G0
AC power signal G
Building Technologies
T1
AGG5.2
1
PRI
LINE
Cable AGM23...
QRA7...
Figure 5: Block diagram –inputs / outputs
Basic Documentation LMV5...
2 General
P
INT
OIL
L1'
ON/OFF
START
HO-START
P
max
P
START
P
max
P
LT
P
black
brown
blue
QRB
QRA
Fuel valve V1 (GAS)
Fuel valve V2 (GAS)
Fuel valve PV (GAS)
Fuel valve SV (GAS)
OIL+GAS
Air pressure switch (LP)
Fuel selection GAS
Fuel selection OIL
Fan condactor contact (GSK) or ARF-DW
Lockout / manual locking
Controller (ON/OFF)
Controller closed / stage 3
Controller open / stage 2
Start release oil (START)
Heavy oil - direct start
Oil pressure switch-min
Oil pressure switch-max
Start release for gas (START) or
CPI (oil and/or gas)
Gas pressure switch-min
Gas pressure switch-max
Gas pressure switch - valve proving /
valve proving or valve closure contact (CPI)
Flame alternative 1
QRI (IR detector) signal voltage
QRI ( IR detector) supply voltage
Protective earth (PE)
Neutral conductor (N)
Power signal (L)
QRB signal voltage
Ionization probe (ION)
Flame alternative 2
Power signal (L)
Neutral conductor (N)
Fan
Ionization
Flame alternative 3
QRA7 signal voltage
QRA7 supply voltage
Protective earth (PE)
Neutral conductor (N)
Power signal (L)
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