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25
F-Guard UV-IR-HD User Manual
76-M-6010-02-02
Output Signals
The detector has the following output signals:
Current output (0–20mA) with HART ® 7
Relays (Fault, Auxiliary and Alarm)
Modbus RS-485
Tri-color status LED
T
ABLE
4:
O
UTPUT
S
IGNALS
State
St
at
e
Output
0 – 20mA
Fault Relay
(NC)
Alarm Relay
(NO)
Aux Relay
(NO)
LED
Startup
1mA
Open
Open
Open
Flashing
Yellow
Fault
1mA
Open
Open
Open
Flashing
Yellow
BIT fault
2mA
Open
Open
Open
Yellow
Dirty Window Warning
3mA (
1
)
Closed
Open
Closed (
2
)
Green
Normal
4mA
Closed
Open
Open
Green
IR Radiation detected
8mA
Closed
Open
Closed (
3
)
Green
UV Radiation detected
12mA
Closed
Open
Closed (
4
)
Green
Pre Alarm
16mA (
5
)
Closed
Open
Closed (
6
) Flashing red
Fire Alarm
20mA
Closed
Closed
Closed
Red
Notes:
1 – 3mA when “Enable dirty window warning 0-20mA” enabled. 4mA when “Enable dirty window warning 0-20mA” disabled.
2– Closed when “Aux Relay” set to “Dirty Window Warning”.
3– Closed when “Aux Relay” set to “IR Detected”.
4– Closed when “Aux Relay” set to “UV Detected”.
5 – 16mA when “Enable Pre-Alarm 0-20mA” enabled. 4mA when “Enable Pre-Alarm 0-20mA” disabled.
6– Closed when “Aux Relay” set to “pre-alarm”.