Wiring Function
44
SharpEye
TM
IR3 Flame Detector User Guide
6.5
Detector Installation
In order to comply with intrinsically safe requirements when the detector is
used in hazardous areas, barriers must be incorporated. There will also be
restrictions on cable types and lengths, depending on the type of barriers
used.
1
Choose the wiring configuration according to
on page 53.
2
Connect the wire to the required PIN on the connector or choose the
required color on the cable, according to your wiring.
3
Connect the grounding wire to general screw outside the detector
(Figure 2 and Figure 3). The detector must be well grounded to earth
ground for proper operation.
6.6
Wiring Function
Refer to Figure 10 and Figure 11.
The following describes the function of each electrical wire of the detector:
•
Power Supply
•
PIN No. 1 or red wire - used for input power
•
PIN No. 2 or black wire - used for return
•
Manual Bit Activation
•
PIN No. 11 or yellow wire - used for the Manual BIT activation.
•
The manual BIT is initiated by a momentary connection of the 11
(yellow wire) to the power supply return line.
•
Fault Relay
The fault output is a N.C. SPST contact relay:
•
PIN No. 5 or brown wire
•
PIN No. 6 or light blue wire
The contact is normally energized closed when the detector is in its
normal operational condition.
•
Alarm Relay
The alarm output is a N.O. SPST contact relay.
•
PIN No. 7 or orange wire
•
PIN No. 8 or violet wire
•
4
–
20mA Output
•
This output is used for analog, 4
–
20mA current output:
•
PIN No. 11 or pink wire is used as output (+)
•
PIN No. 12 or blue wire is used as input (-)
