Siemens LMV50 series

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Building Technologies Basic Documentation LMV5... CC1P7550en
17 Block diagram of contact links 22.05.2018
17 Block diagram of contact links
Firing on oil (V1)
Extern
a
l
t
r
a
f
o
Mains
s
i
d
e
t
r
a
f
o
SV
Fan
V 1
PV
V 2
2 x 115 V
al = r1
Pressure switch - VP / or CPI
Fan contactor contact
or / FGR-PS
Pressure switch min.
Pressure switch max.
Pressure switch min./
release of startup
Release of startup
Pressure switch max.
external
Magnetic clutc
h
/
o
i
l
p
u
m
p
Reset
Air pressure switch (A
P
S
)
P
l
a
n
t
O N/O FF
Ph AC 230 V
Inputs
Fla
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e
s
i
g
n
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C
A
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p
p
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y
F
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e
a
r
t
h
PELV*
V 3
V 2
V 1
SV or preheater startup with heavy oil
L
o
w
v
o
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t
a
g
e
s
i
d
e
t
r
a
f
o
P
E
Air damper
Gas damper
Oil pressure controller
Mixing device
Display and
operation
A
Z
L
P
C
PELV*
P
h
F
l
a
m
e
d
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e
c
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r
Q
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I
,
Q
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B
X
1
0
-
0
2
I
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n
i
z
a
t
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o
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X
1
0
-
0
3
Figure 110: Block diagram of contact links for LMV5