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By John Mitchell, CP Automation Common symptoms of high harmonics levels include motor vibration, voltage notching, electromagnetic interference and overheating, all of which are harmful for equipment and result in heat loss and increased maintenance and energy costs.

Pipeline and inline control loops have no back mixing and hence no process time constant in the response of the outlet to changes in the inlet.

Operating mean targets can be shifted after variability has been reduced or stabilized to increase cost savings and production. This article explains how.

Optimized for commercial fan and pump applications, PowerFlex 400 AC drives feature built-in network connectivity for integration into building automation systems, as well as flexible packaging options for easy installation and startup.

This paper suggests several mechanical, electrical, and software ideas that will enable conveyor designers to optimize conveyor reliability and "maintainability" without the need for large investments in equipment and design time. It introduces the concept of internally powered conveyor belt drives and offers generally applicable belt drive design software.

M-Flex enclosed drive motor controllers are available in Type 1 general purpose or Type 12/12K drip- and dust-proof environmental enclosures in integrated or barriered designs. The controller includes a Telemecanique Altivar 61 or Altivar 71 AC drive for process applications where high functionality of features is required.

An enhanced PID controller simplifies tuning and improves loop stability and reliability for loops dominated by discontinuous measurement updates.

The ISA Honors and Awards Gala will be held at ISA EXPO at the Hyatt Regency Houston, Houston, Texas, on October 1, 2007.

“I’m humbled, honored and excited to lead the Dart team,” said Burch.

NEMA ICS 7 provides practical information concerning ratings, construction, test, performance, and manufacture of industrial control equipment—adjustable speed drives.

Readback control of valve position compensates for a host of unknowns in connection with valve response but a positioner, like a controller, must be tuned.

Where possible, use a diaphragm actuator sized to meet at least 150% of the maximum thrust or torque requirement.

What programs are available from ISA in July 2015?

The friction drive conveyor is an alternative to overhead and inverted power & free conveyors and can be used to move anything from car bodies to small appliances.

Injection presses, materials handling equipment, stamping presses, other metal forming machines and more can utilize Green Hydraulic Power.

Model 2999 is suitable for stand-alone AC gearmotor applications that require variable speed, controlled acceleration and reversing.

When relaxing poolside, odds are that the equipment keeping the water flowing and filtered safely is not top of mind. Behind the scenes, there are likely some fascinating control systems keeping things afloat.

This certification recognizes the Allen-Bradley PowerFlex 755T-series and PowerFlex 6000T drives for adherence to the cybersecurity standards outlined in the IEC 62443-4-2 guidelines.