28
2.7.1
Verifying the Detector Wiring
The detector has five output wiring options within the EExde integral terminal section of
the enclosure. There are 12 terminals labeled 1-12.
Table 17 describes the function of each terminal for all the wiring options.
Table 17: Model 40/40I Wiring Options
Wire
Terminal
No.
Option 1
Default
Option 2
Option 3
Option 4
Option 5
1
+24 VDC
+24 VDC
+24 VDC
+24 VDC
+24 VDC
2
0 VDC
0 VDC
0 VDC
0 VDC
0 VDC
3
Manual BIT Manual BIT Manual BIT Manual BIT Manual BIT
4
5
Fault Relay
N.C.
Fault Relay
N.C.
Fault Relay
N.O.
Fault Relay
N.C.
Fault Relay
N.O.
6
Alarm
Relay
N.O.
Alarm
Relay N.O.
Alarm
Relay
N.O.
Alarm
Relay
N.O.
Alarm
Relay N.O.
7
Alarm
Relay C
Alarm
Relay C
Alarm
Relay C
Alarm
Relay C
Alarm
Relay C
8
0-20mA
In
Alarm
Relay N.C.
Alarm
Relay
N.C.
Auxiliary
N.O.
Auxiliary
N.O.
9
0-20mA
Out
0-20mA
Out
0-20mA
Out
Auxiliary
C
Auxiliary C
10
RS-485+
(1)
RS-485+
(1)
RS-485+
(1)
RS-485+
(1)
RS-485+
(1)
11
RS-485-
(1)
RS-485-
(1)
RS-485-
(1)
RS-485-
(1)
RS-485-
(1)
12
RS-485
GND
RS-485
GND
RS-485
GND
RS-485
GND
RS-485
GND
Notes
:
•
RS-485 is used for communication network as specified in
Appendix
C
(Terminals 10, 11, 12).
•
Alarm relay:
•
N.O. energized contact in wiring options 1, 4, 5.
•
N.O. and N.C. energized in options 2 and 3.
•
0-20mA is ‘Sink’ in option 1 and ‘Source’ in option 2 and 3.
•
0-20mA includes HART protocol.
•
In Wiring Option 1, link Terminals 1 and 8 to change the mA output to ‘Source’.
•
The Fault output is N.C. energized SPST relay. The contacts are closed when the
Detector is in its normal operational condition in options 1, 2 and 4, and available as
N.O. energized in options 3 and 5.
•
The Auxiliary output is N.O. energized (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.
Содержание SharpEye NP40IGB
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