Manual 26166V1 MicroNet Simplex & MicroNet Plus
Woodward 126
Analog Outputs
If an analog output is not functioning properly, verify the following:
1. Check that the cable is shielded and the shield is properly grounded per the Shields and Grounding
section in Chapter 15, Installation (System Level Installation).
2. Check the load resistance to ensure that it is not greater than 600 ohms.
3. Check to ensure that the load wiring is isolated.
4. Check the wiring for a loose connection on the FTM terminal blocks and disconnected or
misconnected cables.
5. Disconnect the field wiring and connect a resistor across the output. If the output is correct across the
resistor, there is a problem with the field wiring.
6. Check the software configuration to ensure that the output is configured properly.
7. If the readings are incorrect on several channels of the module, corresponding to both cables, replace
the module.
8. If replacing the module does not fix the problem, replace the FTM. The FTM contains only traces and
a few discrete components, so failure is extremely unlikely. See instructions for replacing the FTM in
Chapter 15, Installation (System Level Installation).
Recommendation:
The module should be returned to Woodward every 6 years for health
check and technical updates. This health check shall increase in
frequency when the module is more than 20 years old.
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