Siemens FS20 - Page 234

Mou
nting and installation of the compact control panels
Remote EVAC
-
NL and EVAC
-
NL mimic display driver
5
234 | 354
Building Technologies
008851_s_en_
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Fire Safety
2016
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01
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27
Example of using the diagram
Two remote EVAC-NL indicators, one with 20 zones, the other with 30 zones, are
supplied by the periphery board of the same ↑ station.
Figure 128: Wiring example for calculating the cable resistance
Number of zones via the same supply cable: 50 (20 from panel 1 and 30 from
panel 2)
According to the diagram, this results in the following values for the EVAC-NL
mimic display driver:
● Maximum cable resistance R' is 10 Ω (curve 1)
● Maximum current is 0.85 A (curve 4)
In the same way, this would result in the following for a remote EVAC-NL indicator:
● Maximum cable resistance R' is 22 Ω (curve 2)
● Maximum current is 0.4 A (curve 3)
X1
X4
X2
X3
X5
FTI2002-N1
FTO2007-N1
Operating unit
'Master'
X400
X402
3 x 34 pin
34 pin
X1
FT2003-N1
Synoptic panel
Connector
board
mimic display driver
X1
X4
X2
X3
X5
FTI2002-N1
FTO2007-N1
Operating unit
'Slave'
X400
3 x 34 pin
34 pin
X1
FT2003-N1
Synoptic panel
Connector
board
mimic display driver
X402
X1
X4
X2
X3
X5
FTI2002-N1
FTO2007-N1
Operating unit
'Slave'
X400
3 x 34 pin
34 pin
X1
FT2003-N1
Synoptic panel
Connector
board
mimic display driver
Remote (mimic) EVAC, 30 zones
20 pin
20 pin
X402
X1
X4
X2 X3 X5
FTI2002-N1
FTO2
0
0
7
-
N
1
Operat
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n
g
u
n
i
t
'Ma
s
t
e
r
'
X
4
0
0
X
4
0
2
3 x 34 pin
34 pin
X1
FT2003-N1
Synoptic
p
a
n
e
l
Connector board
mimic display driver
X1
X
4
X
2
X
3
X
5
F
T
I
2
0
0
2
-
N
1
F
T
O
2
0
0
7
-
N
1
O
p
e
r
a
t
i
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g
u
n
i
t
'
S
l
a
v
e
'
X
4
0
0
3
x
3
4
p
i
n
3
4
p
i
n
X
1
FT2003-N1
S
y
n
o
p
t
i
c
p
a
n
e
l
Connector board
m
i
m
i
c
d
i
s
p
l
a
y
d
r
i
v
e
r
Remote (mimic) EVAC, 20 zones
20 pin
X
4
0
2
RS485 (FCA2002-A1)
Usys (Peripherieboard 2-/4-Loop)