Category: Automation

Industrial automation, control circuits, sensors, relays, contactors, motor control.

Why Does a PLC Repeat the Same Scan Thousands of Times?

Why Do Industrial Automation Systems Usually Use 24V DC?

PLC Scan Cycle Explained: Inputs, Logic, Outputs, and Why It Matters

Safety Relay Not Resetting: Causes, Wiring Checks, and Troubleshooting Steps

4–20mA Signal Explained: Wiring, Testing, and Fault Diagnosis

0–10V Signal Troubleshooting: How to Test Analog Voltage Signals

PLC Keeps Losing Communication With HMI: Ethernet and IP Address Checks

Machine Starts Then Stops Immediately: PLC, Safety Circuit, and Sensor Checks

Control Panel Overheating: Causes, Symptoms, and How to Prevent Failures

Encoder Not Counting in PLC: Wiring, Signal, and Parameter Checks