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Five-phase drives perform 500k steps/rev

01 September, 2002

Five-phase drives perform 500k steps/rev

A Japanese company has developed a five-phase stepper drive capable of 500,000 steps per revolution. This is twice the resolution of rival systems, it claims.

Mycom`s NanoDrives are aimed at high-resolution applications in areas such as robotics, metal machining, and packaging, especially where overheating could be a problem.

The drives incorporate a "torque chip" designed to maintain maximum holding and running torque. The chips also regulate motor temperatures, boosting their performance and extending their lives.

According to Mycom, most other five-phase motors can reach a temperature of 100C after operating for just 30 minutes. The company claims that its system allows motors to run for 190 minutes without going above 69C. If the motor does become too hot, it stops automatically.

The NanoDrive system is available in either 110-120V AC or 24V DC versions, and includes five-phase stepper motors with current ratings from 1.4-2.8A, in Nema frame sizes 17-34.

More information on the NanoDrives is available on the Web site of Mycom`s US subsidiary, Nyden Corporation.

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