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This card lets you control a motor with a controller requiring a +/-10vdc control signal from a PWM signal and direction or an analog and direction signal. This card also has two relays that can be used to control the direction (CW / CCW) and enable the drive (On / Off).



  • Inputs a PWM signal or inputs analog of 0-10VDC signal.
  • Uses only two pins, one for PWM and one for direction. It is the presence of absence of
    the valid PWM signal what would start/stop the spindle.
  • Has two relays that can be used to control the direction and enable and disable the
  • Jumper to select mode of operation, US or International mode. On US mode, one relay
    would be used to start CW and the second one to start CCW. On International mode Relay
    1 will start/stop, and Relay 2 will determine the direction of rotation.
  • Optoisolated input signal PWM.
  • Has a Built-in DC-DC converter that generates an isolated power required to drive the analog output..
  • All TTL +5VDC Signals
  • Pluggable Screw-On connections for all terminals. You only have to screw-on the wires
    to make all your connections.
  • Flexible design. It works with cnc4pc’s products, directly through your parallel port, or
    through many other parallel port control products.
  • Din rail mountable


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   Frequently Asked Questions and Answers

  • Adam - 2 years ago
    Whats is the resolution of the analog to digital converters of this board? Will I loose some fidelity coming from the acorn analog output?

    There is not ADC/DCA. When working with the analog coming from the ACORN, we just invert the same analog for the +/-10vdc. Note the board can also generate the analog from a PWM signal.
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