Complete Troubleshooting Guide for Siemens SINAMICS and AB PowerFlex Drives In industrial automation systems, variable frequency drives (VFDs) are widely used to control motor speed, torque, acceleration and deceleration. However, one of the most common problems encountered by maintenance engineers is: “The motor starts normally, but it rotates in the opposite direction.” When this happens, […]
Tag Archives: VFD
Electric motors are the heart of modern industrial automation. They are widely used in conveyors, pumps, compressors, fans, CNC machines, packaging equipment, and countless manufacturing systems. One question that frequently arises among engineers, technicians, and maintenance personnel is: Why is the motor starting current so high, and why does it gradually decrease once the motor […]
Introduction Variable frequency drives (VFDs) are widely used in industrial automation systems for motor speed control, energy saving, and process optimization. However, during long-term operation, overload faults are among the most common issues encountered in industrial environments. Overload alarms may lead to unexpected shutdowns, production interruptions, motor overheating, and even equipment damage if not handled […]