Wiring Options - Dräger Flame 2000 Instrucciones De Uso

7.2

Wiring options

For more information on relay connection and wiring options, please
refer to the Technical Manual.
7.2.1 Dräger Flame 2000/2500/2700
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 Manual Manual
BIT BIT
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)
0 VDC 0 VDC 0 VDC
Manual Manual Manual
BIT BIT BIT
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)
Terminal Option 1
no. (default)
11 RS-485-
(1)
12 RS-485
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.
Technical data
Option 2 Option 3 Option 4 Option 5
RS-485- RS-485- RS-485-
(1) (1) (1)
RS-485 RS-485 RS-485
GND GND GND
en
RS-485-
(1)
RS-485
GND
21