Rockwell Automation T3418F ICS Regent Monitored Digital Input Modules, Field Powered (Type F) - Manual (Page 6)

Monitored Digital Input Modules, Type F (T3411F, T3418F)
6
Industrial Control Services
Front Panel Indicators
Figure 2 shows the physical features of the type F, monitored
digital input modules. The front panel of each module
contains fault/active and power indicators for the module as
well as input status indicators for each channel.
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 turns on
and the green indicator turns 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 contact and line status for each
point.
A yellow contact status indicator is turned on when the
contact is closed or the line has shorted.
A red line status indicator is turned on when the field wiring
is open circuit or short circuit. If line monitoring is not
desired, this LED can be disabled (see Disable Fault LED,
page 21 for more details).