External Input Channel Fault

What does Flashing red (Input Module) mean?

An external condition has caused a fault on an input channel. This can manifest as an input signal that is overrange or underrange, a disconnected input wire (Open Wire), or an issue with the SA bus power. This indicates an issue with the input signal source, wiring, or auxiliary power for the input channel.

• The input signal is outside the configured overrange or underrange limits.
• A wire is disconnected from the input channel (Open Wire condition).
• SA bus power, if used, is not available or is incorrect.

Click steps to track your progress.

1. 1

   Measure the input signal to determine if its value is outside the configured range limits.

2. 2

   Modify the input signal source or adjust the signal range settings in the Logix Designer application project to bring the signal within limits.

3. 3

   Check the wiring at the input channel for integrity and proper connection.

4. 4

   Check the SA connector (on 5069-AEN2TR adapter or 5069-FPD module) for the presence of 24VDC power; if absent, troubleshoot the SA power connection.