Rockwell Automation T3419 ICS Regent Fire Detector Input - Manual (Page 7)

Fire Detector Input Modules (T3419)
P D - 6 0 3 2 M a r - 0 6
7
Active/Fault Status Indicator
This green and red LED pair indicates the overall health of
the module and its field circuits. During normal operation the
green ACTIVE indicator flashes at the controller's scan rate.
If a module fault occurs the red FAULT indicator switches on
and the green indicator switches off.
Power Status Indicator
The POWER GOOD LED indicates the presence of field
voltage at the module’s field power input terminals and the
overall health of the module’s field power regulator circuits.
Input Status Indicators
Input status indicators show Fault and Alarm status for each
point.
A red ALARM status indicator turns on when the fire detector
input is in the tripped alarm state. The indicator is also on if
the input signal is shorted.
A yellow FAULT indicator turns on when the input circuit is
open or short circuit.
Application
Simplex Configuration
Fire detector input modules provide a suitable interface to
safety-critical input signals.
Fire detector input modules provide a suitable interface to
safety-critical input signals. The circuits in the input modules
are automatically tested and annunciated, providing a fail-
safe interface to digital inputs.
Fault Tolerant Connection
For critical inputs, redundant input modules are used with
redundant input sensors in a fault tolerant configuration. In
this configuration each input module is connected to one of
two redundant sensors in the field. With this configuration, if
a fault occurs on one module or sensor, it can be removed and