Technical Data Sheet 2.50-35.021-01-en Rev
FSM21 Front Switch Module
For connection to the FBM38 fieldbus module.
D e v i ce De s c ri p ti on
A
In
.
stallation
Electrical installation and device connection in the switchboard may only be carried out
by qualified technicians. The power must be disconnected from the switchboard.
1
Ausgangskontakte K1..K4: max. 230 V AC/24 V DC, 6 (3) A
17
18
19
20
4
5
6
7
8
9
10
17
18
19
20
Zentrale
DDC3000-System
FSM21
3
4
5
6
Fe
ld
bu
s
+
Fe
ld
bu
s
-
+
12
V
D
C
0 V
D
C
Netz-
gerät
12 V DC +
-
+
12
V
D
C
0 V
D
C
Da
ta
Clk
+12 V DC
0 V DC
FBM38
QBSchnittstelle
Be
tr
ie
b
s
-
sp
a
n
n
u
ng
QBSchnittstelle
Feldbus (CAN)
Feldbus (CAN)
Backbone
2
3
21
22
24
K2
31
32
34
K3
2
1
Vordere
Hintere
Anschluss-
klemmen
Hintere
Anschluss-
klemmen
Vordere
Anschluss-
klemmen
0V
51
IN
52
IN
53
IN
54
IN
55
IN
56
IN
57
IN
58
IN
59
IN
60
IN
0V
paarig
verdrillt
paarig
verdrillt
11
12
14
K1
7
8
9
10
FBM38
SBM21/41
0 V
D
C
L-
Te
s
t
SS
M
SS
M
-Q
7
8
9
10
Anschluss alternativ
1)
2)
meldung
(nicht DDC3010/3035/3100)
Relais K1
(Stufe 1.1)
1) Taster: LED-Test
2) Taster: Quittierung
der Sammelstör-
(Adressein-
stellung >16)
Backbone-Anschluss
an max. 63 FBM38
und max. 16 SBM21/41
37/37
33/32
34/33
35/34
L
N
Gerät/Aggregat 1
41
42
44
K4
Die binären Eingänge
55/IN..58/IN können
als Schließer oder
Öffner angeschlossen
werden.
Umschaltung am
FBM38.
Relais K2
(Stufe 1.2)
Relais K3
(Stufe 2.1)
Relais K4
(Stufe 2.2)
Gerät/Aggregat 2
-
51/IN..54/IN zusätzliche
Betriebsmeldungen
nur bei Betriebsart Fern
Störmeldungen 1..4
1
2
3
4
Ensure that this process complies with VDE guidelines and local wiring regulations.
Danger
The FSM21 front switch module is connected to the QB interface of the FBM38 fieldbus module.
The 4-wire QBS connection line can have a maximum length of 200 m.
Wiring diagram
Displayed in
wiring diagram:
Switch levels with reciprocal
hardware locking (e.g. for
fan control (OR function)).
When the switch levels are
switched together, then the
K2 and K4 inputs must be
connected directly to “L”
(e.g. for electric air heaters
(AND function)).
Bridges K1-K2 and K3-K4
are omitted.
The software setting of the
AND/OR function is made
on the FBM38.
Connection of the DC 12 V operating voltage is only made on connection terminals 1 and 2 of the
FBM38.
Note
Continue to observe the connection instructions in the device description of the FBM38 fieldbus module
(Technical Data Sheet 2.50-30.038-01-en).
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