Motors and Drives
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...
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.
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...
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.
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.
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.
直接驱动线性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.
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.
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.
U.S. Production Gains Despite Automotive Decline
与增加eases in most major market and industry groups, U.S. industrial production grew 0.5% in December, according to the Federal Reserve Board's recent "Industrial Production and Capacity Utilization" report. However, the report added that the overall gain was held back by a 2.