DN Staff

July 10, 2001

1 Min Read
Commutating encoder

Tuesday, December 26, 2000

With six channels, the RCM1 rotary optical encoder eliminates Hall-Effect sensors inside of motors. The 2.1-inch diameter encoder simplifies assembly and eliminates Hall sensor alignment, increasing reliability and reducing costs, according to Edward Burk, technical sales manager.

Combining the three-phase brushless commutation pulses, the two data channels (in Quadrature), and the reference (once per revolution) index pulse, the encoder achieves up to a 2,000-line resolution, and commutates 4-, 6-, 8-, or 12-pole motors. A built-in servo groove provides (+/-) 20 degrees mechanical rotation for aligning the encoder commutation tracks with the motor rotor poles; and a patented slide-lock mechanism that aligns, centers, and gaps the encoder makes installation easy, says Burk. Another benefit: more power in the same space. Burk explains, "without the Hall board, you can increase the stack length without increasing the overall size of the motor."

For more information visit www.renco.com.

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