Rockwell Automation T7444 ICS Regent+Plus AC Digital Output Module 110VAC User Manual

Page 4

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AC Digital Output Module (T7444)


4

Industrial Control Services

Active and Fault Status Indicators

These green and red LEDs indicate the overall health of the
module. During normal operation, the green ACTIVE
indicator flashes at the controller’s scan rate. If a module
fault is detected the red FAULT indicator turns on and the
green ACTIVE indicator turns off.

Shutdown Indicator

Upon loss of communications with the controller, output
modules enter either a shutdown or hold fault mode. If the I/O
assembly is set to shutdown, the red SHUTDOWN

indicator

will turn on when communications with the controller are lost.
If the I/O assembly is set to hold, the SHUTDOWN indicator
will always be off (see page 7, Fault Mode Jumper).

When the module is installed in the I/O chassis or when logic
power (from the I/O power supply modules) is first applied to

the module, it will be in the shutdown mode until the first
output scan, regardless of the fault mode jumper settings.
Also, removing two I/O transceiver modules, two I/O power
supply modules, or two power legs will cause the module to be
in the shutdown mode.

Output Status Indicators

The output status indicators are yellow LEDs located on the
logic side of the output. There are 16 output status indicators
— one for each output. These indicators are lit when the
output TRIAC is energized to turn on the load.

Blown Fuse Indicators

The red BLOWN FUSE indicators turn on when the adjacent
front panel fuse opens. A blown fuse will also cause the
module’s FAULT indicator to turn on.

Note:

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