IGM Vega FD 329-3-1, User Manual

Page: 19 / 30

MRBP.425241.001 UM version 1.1 01.05.2022 FD 329/330-3-
1 «Vega»
19
AN OTHER MALFUNCTIONS!
3.OPEN THE DETECTORS IN A HAZARDOUS AREA WITH POWER ON
Detector’s housing must be grounded.
Output signal and LED indicators description
FD 329/330-3-
1 «VEGA» generates the following output signals:
- analogue signal with the following meanings:
a)
1.9…2.1 mA – «Failure»;
b)
3.9…4.1 mA – «Standard»;
c)
17.9…18.1 mA – «Fire»;
d) 4.1 mA
– «Testing».
- digital signal via standard communication channel RS-485 with MODBUS protocol;
- actuating of the
«dry» contacts of two relays «Fire» and «Failure». Relays are
designed for switching current 1 A at a voltage of 30 VDC.
FD 329/330-3-
1 «VEGA» is equipped with LED indicators, displaying the current
operation mode of the detector.
Table 1 lists output signals, states of the relay contacts and indicator LEDs for FD
329/330-3-
1 «VEGA» different states.
Table 1
№
FD 329/330-3-1
«VEGA» state
«Fire» relay
contacts state
«Failure» relay
contacts state
Output
signal, mA
LED indicators state
NC NO
1 No supply
voltage
Closed Open Open 0 Off
2 Dirty optics or
failure
Closed Open Open 2 Cycles: every 30 s
flashing with
different frequency:
first: 4 times
within 0.25 s
with a period 0.5 s
second: 3 times
within 0.5 s
with a period 1s
3 Standard Closed Open Closed 4 Cycles: every 30 s
flash 3 times
alternately
within 0.5 s
with a period 1 s
4 Fire Open Closed Closed 18 Continuous glow of
the both LEDs during
the
«Fire» signal
5 IR-channel Closed Open Closed 4 Continuous glow of
the IR LED during the
IR channel threshold
exceeding
6 UV-channel Closed Open Closed 4 Continuous glow of
the UV LED during
the UV channel
threshold exceeding
7 Checking mode
(with a
magnetic key
on)
Closed Open Open 2 Yellow
– when putting
on a magnet, red
–
when illuminated with
a test lamp
It is possible to fix the output signal "Fire" after the end of the alarm cause .