18
Table 9: Output Signals ve rsus Detector State
Detector
State
LED
Indicator
LED
Mode
Alarm
Relay
Auxiliary
Relay
Fault
Relay
mA
output
Normal
Green
1Hz
Off
Off
On
5 mA
Warning
Red
2Hz
Off
On
(4)
On
10 mA
Alarm
(1)
Red
Constant
On
On
On
15 mA
Off
On
15 mA
Latch
(2)
Red
Constant
On
On
(4)
On
15 mA
BIT Fault
(3)
Yellow
4Hz
Off
Off
Off
2 mA
Warning at
BIT Fault
Red
2Hz
Off
On
(4)
Off
10 mA
Alarm at BIT
Fault
Red
Constant
On
On
Off
15 mA
Fault
Yellow
4Hz
Off
Off
Off
0 mA
Notes:
1
The alarm outputs are activated while alarm conditions exist and will stop
approximately 5 seconds after the fire is no longer detected.
2
The Alarm state can be optionally latched via programmed function. (Default is non-
latching).
3
The detector will remain in BIT Fault state until it has passed a successful BIT.
4
The Auxiliary Relay can be activated at the Warning level or Alarm level, depending
on programmed function.
5
The outputs depend on the wiring options.
1.5.6.1
Optional Latching
Alarms are set as non-latching by default. However, the detector includes a latched alarm
output capability, which operates according to the programmed function.
If selected, upon detection of a fire, the detection signal is latched until a manual reset is
performed (disconnecting the power supply or performing a manual BIT (see Manual BIT
on page 20).
Latching affects the Alarm Relay, 0-20mA output, the Alarm LED (the Auxiliary Relay
will be latched only when the programmable function
Auxiliary Relay
is set to
YES
.
Notes:
•
The Auxiliary Relay is available only in Model 40/40I – 4XXXX and 5XXXX
•
The 0-20mA is available only in Model 40/40I – 1XXXX, 2XXXX, 3XXXX
1.5.7
Auxiliary Relay as End-of-Line Resistor
The Auxiliary Relay can be used as End-of-Line (EOL) resistance in Model 40/40I-
4XXXX, and 5XXXX only. In this case, the Auxiliary Relay is active as long as the
detector is not in Fault state.
Содержание SharpEye NP40IGB
Страница 1: ...Ref NP40IGB REV A Nov 2009 USER GUIDE...
Страница 35: ...36 Appendices...
Страница 49: ...50...
Страница 50: ...51...