Dräger Flame 2100 Notice D'utilisation page 21

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7.2.2
Dräger Flame 2370
The following table describes the function of each terminal for all the
wiring options.
Terminal
Option 1
Option 2 Option 3 Option 4 Option 5
no.
(default)
1
+24 VDC +24 VDC +24 VDC +24 VDC +24 VDC
2
0 VDC
0 VDC
3
Analog
Analog
output
output
4
Fault
Fault
1)
Relay C
Relay C
5
Fault Re-
Fault Re-
lay N.C.
lay N.C.
6
Alarm Re-
Alarm Re-
2)
lay N.O.
lay N.O.
7
Alarm Re-
Alarm Re-
lay C
lay C
8
0-20 mA
Alarm Re-
In
lay N.C.
9
0-20 mA
0-20 mA
4)
4)
Out
Out
10
RS-485+
RS-485+
5)
(1)
(1)
11
RS-485-
RS-485-
(1)
(1)
12
RS-485
RS-485
GND
GND
0 VDC
0 VDC
0 VDC
Analog
Analog
Analog
output
output
output
Fault
Fault
Fault
Relay C
Relay C
Relay C
Fault Re-
Fault Re-
Fault Re-
lay N.O.
lay N.C.
lay N.O.
Alarm Re-
Alarm Re-
Alarm Re-
2)
2)
2)
lay N.O.
lay N.O.
lay N.O.
Alarm Re-
Alarm Re-
Alarm Re-
lay C
lay C
lay C
Alarm Re-
Auxili-
Auxili-
3)
3)
lay N.C.
ary
N.O.
ary
0-20 mA
Auxiliary
Auxiliary
4)
Out
C
C
RS-485+
RS-485+
RS-485+
(1)
(1)
(1)
RS-485-
RS-485-
RS-485-
(1)
(1)
(1)
RS-485
RS-485
RS-485
GND
GND
GND
1)
C = Common (dry contact); N.C. = Normally Closed; N.O. = Normally Open,
GND = Ground; SPST = Single Pole Single Throw
2)
In options 1, 4, and 5, the alarm relay is N.O. (terminals 6 and 7).
In options 2 and 3, the alarm relay is N.O. (terminals 6 and 7) or N.C. (ter-
minals 7 and 8).
3)
The auxiliary output is a N.O. (SPST) relay. The auxiliary relay may act in
parallel with the alarm relay to activate another external device or it may
provide a warning signal, depending on the function configuration.
4)
Available with the HART protocol
0-20 mA is 'sink' in option 1 and 'source' in option 2 and 3. The maximum
permitted load is 600 Ω.
In wiring option 1, link terminals 1 and 8 to change the mA output to 'source'.
5)
For MODBUS protocol, (1) indicating the flame detector address
2)
N.O.
en
Technical data
21

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