Motors, Drives

Motors, Drives April 1, 1998

Measuring and controlling instrument orders slip slightly in 4Q97

Despite ongoing and better-than-expected U.S. economic growth and manufacturing shipments, U.S. Commerce Department data showed that new orders in the aggregated Measuring and Controlling Instruments (SIC 382) industry group dropped slightly at the end of 1997.New orders in 4Q97 for SIC 382 firms rose by 7.

By Daryl Delano, Cahners Economics
Motors, Drives March 1, 1998

New Range of Brushless AC Servos

Andover, Hants, U.K.— The Unimotor range includes three phase, six or eight pole, permanently excited synchronous motors, exhibiting a sinusoidal back-EMF characteristic. Designed to supply high torque with either low- or high-rotor inertia and minimal cogging torque. Thermal performance is improved by the unique finned motor housing, manufactured in high-strength alloy casting to radiat...

By Staff
Motors, Drives March 1, 1998

Servo Amplifier

Westwood, Mass. Model 5424AC servo amplifiers internal power supply eliminates the need for a separate isolated dc power supply. Optoisolation between power and signal circuits ensures electrical safety. Users can switch the amplifier between velocity-mode and torque-mode with an external toggle switch or command from a programmable controller.

By Staff
Motors, Drives March 1, 1998

Intelligent Positioning Control

Lyman, S.C. —IPOS is an expansion card for the company's Movitrac 31C frequency inverter. The card gives the inverter the ability to control point-to-point motor positioning without use of a high-level controller, such as a PLC or motion controller. Using a built-in PLC-type logic, the Movitrac 31C offers capabilities such as timers, math functions, and timer and activation of outputs, a...

By Staff
Motors, Drives March 1, 1998

Step Motor and Drive

Torrance, Calif. —UFK Nanostep motor and drive package incorporates the latest 5-phase microstepping technology. Six 5-phase hybrid step motor models have been developed and matched to the UFK drive. Motors range from the UFK543AA which develops 18 oz-in constant torque over a speed range of 6 to 480 rpm to the UFK569AA, which generates 220 oz-in.

By Staff
Motors, Drives March 1, 1998

DC Angular Position Transducer

Ellington, Conn.— Model 605 DC Angular Displacement Transducer offers accuracy up to 0.038 and eight measurement ranges for sensing angular position up to 3008 of rotation. With a 3 kHz frequency response and infinite resolution, these transducers from Trans-Tek are suited for use as servo feedback sensors or in applications requiring dependable absolute position sensing.

By Staff
Motors, Drives March 1, 1998

20-in. Workstation

Duluth, Ga. The 20-in. Venus ATX Workstation features CPU options designed to handle big databases and graphics. A newly designed panel/rackmount chassis is said to simplify maintenance and modifications. The Venus ATX provides seven accessory card slots and a total of six drive bays. Three internal hard-drive bays house storage for large applications and process data.

By Staff
Motors, Drives March 1, 1998

Direct Drive Linear Motors

Môtiers, Switzerland ETEL has developed linear motors to replace classical mo-tion control solutions such as motor-driven connecting rods, racks, or ball screws. For strokes up to 50 mm, the company provides a moving coil system which is fully integrated with slide and built-in position sensors.

By Staff
Motors, Drives February 1, 1998

Brushless AC Servo Motors

Andover, Hants, U.K. —Unimotor line of brushless ac servo motors consists of three-phase, six- or eight-pole, permanently excited synchronous motors exhibiting a sinusoidal back-EMF characteristic. They've been designed to provide high torque with either low- or high-rotor inertia and minimal cogging torque.

By Staff
Motors, Drives February 1, 1998

12-in. Motor/Drive Combinations

New Ulm, Minn.—MaxPlus 12-in. brushless servo motor delivers up to 90 hp or up to 300 lb-ft of continuous torque for high-production, high-torque applications. It is intended for very large machinery applications where the size and weight of conventional motors have made automation prohibitive.

By Staff