Pete Stollberger, Author at Industrial Knowledge Zone

Bearing Current Protection for AC Motors with VFDs

All bearings are subject to wear and damage, and the bearings inside of your AC induction motor are no exception. But are you aware of the fact that there is a potential electrical cause for bearing damage in a motor? There is – when motors are driven by VFDs (Variable Frequency Drives). Fortunately, appropriate motor […]

VFDs and Short Circuit Current Ratings (SCCR)

Although short circuit current ratings (SCCRs) for variable frequency drives (VFDs) are widely discussed, many people are still unclear about what these ratings mean and why they are important. SCCRs concern safety issues dealing with prospective short circuit current (PSCC) at the point where a VFD is connected to an electrical power feed. SCCR refers […]

Understanding Servo System Performance

Servo performance directly affects the quality of the products a machine produces and the time it takes to produce them. By paying attention to accuracy, response and stability, Machine Designers can adequately evaluate and select the proper products for their applications.

UL508A Safety Standards for Motor Combination Starters

Named for their construction and combined functions, motor combination starters are the most common type of packaged motor controller. As you start looking for a control panel for your industrial needs, be sure to choose the products and services of a UL508A-certified company.

Managing Outdated PLCs in Your Plant

Just like your home computer or other household electronics, industrial automation and control equipment can also become obsolete. This progression is normal and is a fact of life regardless of the parts manufacturer. Critical components such as micro-processors and memory chips go out of production, leaving producers little alternative but to reengineer their systems.