01376 333333

RTA - A-NDC 06.V - Open-Frame, Stepping Motor Drive

Stepping motor drive open-frame A-NDC 06.V ( ADVANCED )
( 24 - 85 VDC 1.9 - 6.0 Amp ) with screw-type connectors


  • New series of bipolar microstep stepping motor drives, specifically developed for applications sensitive to acoustic noise and vibration.
  • Significant evolution of the NDC series, preserving backward mechanical, electrical and applicative compatibility.
  • Target: advanced applications requiring high precision, smoothness of movement and low acoustic noise.


  • Full digital microstepping drive.
  • Adaptive microstepping up to 12.800 step/rev (1/64).
  • Intelligent management of the current profile that achieves good results in terms of smoothness of movement, low noise and vibration control.
  • A highly sophisticated control system, preserving anyhow the traditional ease of use of R.T.A. drives.

Technical Specifications

  • Version: open frame drive in 101 x 94 x 25 mm, equipped with screw-type connectors.
  • Range of operating voltages: 24-85 VDC.
  • Range of current: 1.9-6 Amps. Setting up to eight possible values by means of a dip-switch.
  • Microstepping: 400, 800, 1.600, 3.200, 6.400 and 12.800 steps/revolution. Setting by means of a dip- switch.
  • Management of the current profile setting by means of a dip-switch.
  • Automatic current reduction at motor standstill.
  • Protections:
    - Protection against under-voltage and over-voltage
    - Protection against a short-circuit at motor outputs.
    - Overtemperature protection with thermal sensor.
  • Electronic damping facility for further acoustic noise and mechanic vibrations reduction.* Adaptive microstepping.
  • Optoinsulated inputs to ensure best EM noise immunity.
  • Warranty: 24 months.



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RTA - A-NDC 06