Industrial Automation, PLC, VFD, and Troubleshooting
One of the most confusing topics for many automation technicians is sinking and sourcing.
You may hear people say:
PNP sensorNPN sensorSourcing inputSinking inputCurrent sourcingCurrent sinking
At first, it sounds complicated. But the …
Read MoreIn industrial automation, a PLC panel can have a perfect program and still behave incorrectly if the electrical installation has noise or grounding problems.
Electrical noise can cause problems such as:
Random …
Read MorePLC troubleshooting is not about guessing which part is bad.
A good Automation Technician follows a method.
When a machine does not run, the problem could be in many places:
Field device
Sensor wiring
24 …
PLC input problems are very common in industrial automation.
A machine may stop, refuse to start, stay stuck in a sequence, or show an HMI alarm because the PLC is not …
Read MorePLC 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 MoreHow to Test Voltage, Continuity, and Control Circuits with Purpose
A multimeter is one of the most important tools for an automation or maintenance technician. It helps prove whether voltage is …
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