Category: Automation

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

PLC Can Be Pinged but TIA Portal Cannot Connect

TIA Portal Cannot Find the PLC: Causes and Step-by-Step Fixes

Siemens BF or Bus Fault LED Is Flashing: Causes and Step-by-Step Fixes

Siemens Red ERROR or SF LED Is On: Causes and Step-by-Step Fixes

Siemens CPU Suddenly Goes Into STOP Mode: Causes and Troubleshooting

Siemens PLC Will Not Go Into RUN Mode: Causes and Fixes

Three-Phase Motor Hums but Will Not Start

Contactor Buzzing or Chattering: Causes and Fixes

VFD Overcurrent Fault: Causes and Step-by-Step Fixes

Why Does a Motor Overload Trip After a Few Minutes?