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Industrial Automation, PLC, VFD, and Troubleshooting

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9. Control Circuit vs Power Circuit (9 of 41)


July 2, 2026 JoeGuardian 0

One of the most important concepts an automation technician must understand is the difference between the control circuit and the power circuit.

Many industrial machines use both.

The control circuit makes the …

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29. Motor Troubleshooting in Real Plants (29 of 41)


July 2, 2026 JoeGuardian 0

When a motor fails in a real plant, the problem is rarely just “the motor is bad”.

Most of the time the issue is somewhere in this chain:

PLC Logic → Wiring …

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Recent Post

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Categories

  • Analog Signals
  • Automation Technician Roadmap (1 of 41)
  • Cybersecurity
  • HMI \ SCADA Fundamentals
  • Industrial Electricity
  • Industrial Instrumentation
  • Industrial Motor Control (1 of 22)
  • Industrial Pneumatics
  • Industrial Robotics
  • Industrial Safety
  • Industrial Sensors (1 of 15)
  • Industrial Troubleshooting (1 of 13)
  • Intrinsic Safety
  • Ladder Logic
  • Motion Control
  • PLC Basics
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  • PLC Troubleshooting
  • Variable Frequency Drives (1 of 19)