Industrial Automation, PLC, VFD, and Troubleshooting
PLC output problems are very common in industrial automation.
A machine may have the correct input signals, the logic may look true online, but the real device still does not operate.
Examples:
The …
Read MoreIntroduction
Directional control valves are among the most important components in an industrial pneumatic system.
The compressed-air supply provides energy, but the directional valve determines where that air goes.
By changing the airflow …
Read MoreWhy the PLC Says “ON” but the Field Device Does Not Energize
One of the most common troubleshooting problems in PLC-controlled panels is this:
The PLC output LED is ON,but the field …
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