Industrial Automation, PLC, VFD, and Troubleshooting
One of the most common problems in industrial automation is this:
The sensor detects the target, but the PLC input does not turn ON.
Sometimes the sensor LED is ON.Sometimes the sensor …
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In industrial automation, the PLC does not physically “see” the machine, conveyor, door, bottle, box, valve, or actuator. The PLC depends on sensors to know what is happening in the …
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