GENERAL DESCRIPTION NDC is the name of a sries of ministep bipolar chopper drives, suitable for driving medium-low power two-phase stepping motors, with four, six or eight terminais. They are offered in two versions: - NDC 04/06: open frame drives in 101 x 94 x 25 mm format. - NDC 94/96: drives housed in a metallic box, 110 x 108 x 34 mm format. NDC sries drives are equipped with separated connectors for logic signais and power connections. They are designed for easy mounting inside a m驩tal electrical cabinet. The ministep opration, connected with a further electronic rsonance damping facility, ensures excellent operating smoothness and low acoustic noise. Optoinsulated and differential input and output signais ease interfacing with the most commonly used control Systems and ensure high noise immunity. m

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