Rockwell Automation 1771-OP Protected AC (120V) Output Module Installation Instructions - Manual (Page 9)

Protected AC Output Module 9
Publication 1771-IN077A-EN-P - October 2002
The module has 4 status indicators (Figure 3) that show the state of
each output. These indicators light when their corresponding outputs
are energized.
The module also has an indicator that displays a blown–fuse
condition at the respective output regardless of the state of the
output. This indicator is driven by your field device power supply.
The module also has a triac failure indicator. If this light comes on,
return the module to the factory for repair.
Indicator Color Explanation Condition
TRIAC FAIL Red Illuminates when one of the triacs
has failed shorted and causes the
output fuse to open.
Normally off
FUSE BLOWN Red Illuminates when an output fuse has
opened.
Normally off
OUTPUT (4 total; one
per output)
Red Showon/off state of outputs. When
the output is on, the associated
indicator is on.
On or off, as determined
by the state of the
output.
Figure 3
Status Indicators
Fuse Blown - lights when any fuse in the module blows.
Output 0
Output 1
Output 2
Output 3
Each indicator lights when its output is ON.
11886-I
Not used
Not used
Not used
Triac Failure
Interpreting the Status
Indicators