SharpEye 20/20MPI, Руководство пользователя и по обслуживанию

Страница: 27 / 64

TM 20/20MPI, Rev (5) April 2017
Output Signals 27
In each state, the detector activates different outputs, as specified in
Table 7.
Table 7: Detector State with Output Signals
Detector State Color
LED Flashing
LED Alarm
Relay
1
Fault
Relay
1
0–20mA
Output
2
Normal Green 1Hz Off On 4mA
Warning Red 2Hz Off On 16mA
Alarm
3
Red Constant On On 20mA
Latch
4
Red Constant On On 20mA
BIT Fault
5
Yellow 4Hz Off Off 2mA
Warning at BIT
Fault Red 2Hz Off Off 16mA
Alarm at BIT Fault Red Constant On Off 20mA
Fault Yellow 4Hz Off Off 0mA
Notes :
1
Alarm and fault relay refer to Model 20/20MPI-R.
2
0–20mA output refers to Model 20/20MPI-M.
3
The alarm outputs are activated as long as the alarm conditions are
present.
4
The alarm state can be latched (optional) according to a programmable
function.
5
The detector is in its BIT Fault state until it has passed a successful BIT
and stops approximately 3 seconds after the fire is no longer detected.
4.2.1 Optional Latching
The detector has an optional latched alarm output capability, which operates
according to the programmable function. If selected, upon detection of a
fire, the detection signal is latched until manually reset by disconnecting the
power supply. Latching affects the alarm relay, 0–20mA output, and the
alarm LED.
4.2.2 Built-In-Test
When the programmable function alarm BIT at Yes is successful, the 0–
20mA output provides 20mA for 3sec.
www.acornfiresecurity.com
www.acornfiresecurity.com