Specifications
FV-40 Series Flame Detector
087-0056 REV F
52
A.3 Outputs
Electrical
Interface
There are five output-wiring options. These options must
be defined at the factory per the customer order and
cannot be changed at the customer facility.
See
General Instructions for Electrical Wiring
for the
wiring/terminal diagram for each option.
Unless otherwise specified, the default is Option 1. The
wiring arrangement is identified on the detector by the
part number (see Model and Types).
Option 1
: Power, RS-485, 0-20mA (Sink), Fault I
Relay (N.C), Alarm Relay, (N.O) (see Figure 7).
Option 2
: Power, RS-485, 0-20mA (Source) and
HART protocol, Analog Output, Fault Relay (N.O),
Alarm Relay, (N.O), (N.C).
Option 3
: Power, RS-485, 0-20mA (Source) and
HART protocol, Analog Output, Fault Relay (N.O),
Alarm Relay (N.O, N.C).
Option 4
: Power, RS-485, Analog Output, Fault Relay
(N.C), Auxiliary Relay (N.O), Alarm Relay, (N.O).
Option 5
: Power, RS-485, Analog Output, Fault Relay
(N.O), Auxiliary Relay (N.O), Alarm Relay, (N.O).
Electrical
Outputs
Dry Contact Relays
Table 25: Contact Ratings
Relay
Name
Type
Normal
Position
Maximum
Ratings
Alarm SPDT
N.O.,
N.C.
2A at 30 VDC
Auxiliary
SPST
N.O.
2A at 30 VDC
Fault
(see Notes
1 and 2)
SPST
N.C. or
N.O
2A at 30 VDC
Notes:
1.
The Fault relay (in wiring options 1, 2, 4) is
normally energized closed during normal operation
of the detector. The relay is de-energized open if a
fault condition or low voltage situation occurs.
2.
In wiring options 3, 5 the relay is normally
energized open during normal operation of the
detector. The relay is de-energized close contact if
a fault condition or low voltage situation occurs.