March 2002
To provide users with powerful motor speed control in a compact, space-saving design, complete automation leader Rockwell Automation announces the Allen-Bradley PowerFlex 4 ac drive, a new, user-friendly member of the PowerFlex family of drives. Available in power ratings from 0,2 to 3,7 kW (0,25 to 5 hp) and in voltage classes of 115, 230 and 480 V, the PowerFlex 4 is designed to meet global OEM and end-user demands for flexibility, space savings, and ease of use, providing a cost-effective speed control option for applications such as machine tools, fans, pumps, conveyors and material handling systems.
Jeff Sandison - Rockwell Automation
Regular Features
VSD News
Forum
Clipboard
Product News
HellermannTyton Mindbender
Drives, Motor Control, Protection and Switchgear
A sneak preview of tomorrow's drive technology
R Eisenbrown (Rockwell Automation) ,
Simplyfying drives makes your life easier
Flow Measurement and Control
Development of a three-beam ultrasonic flowmeter
Ultrasonic flowmeters set the standards in the chemical and petrochemical industries
Hazardous Areas
Ac variable speed drive selection
J van Niekerk (Alstom) ,
Drive selection is often a complex process
Lighting of potentially explosive areas
C Nunns (Nordland) ,
Never compensate on safety when choosing adequate lighting
Temperature Measurement and Control
Some factors to consider when selecting frequency counters and calibrators
K Preston (Spescom MeasureGraph) ,
Calibration extends to frequency clocks
