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IndustryArena Forum > CNC Electronics > Servo Motors / Drives > Step/direction to analogue converter
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  1. #1
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    Step/direction to analogue converter

    Having been put right on the UHU servo controller, I need a cheap-ish means of converting step/dir pulses to +/-10 to control some analogue AC servo drives.

    Any suggestions?

    Thanks David

  2. #2
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    Aug 2015
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    103

    Re: Step/direction to analogue converter

    Search for
    YAPSC:10V


  3. #3
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    942

    Re: Step/direction to analogue converter

    Step2Linear

    ViperServo
    Manufacturer of CNC routers and Viper Servo Drives
    www.LarkenCNC.com and www.Viperservo.com

  4. #4
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    Re: Step/direction to analogue converter

    Thanks for the suggestions. The YAPSC seems like a good solution.

  5. #5
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    Re: Step/direction to analogue converter

    The viper2linear looks cool. But..

    if you have a 3 axis machine - you are going to spend about $270.

    With linuxcnc and mesa hardware - you get true closed loop 6 axis analog control plus 48 i/o and expandable. $280 (comes in ethernet, pci or pcie)

    sam

  6. #6
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    Re: Step/direction to analogue converter

    Quote Originally Posted by samco View Post
    The viper2linear looks cool. But..

    if you have a 3 axis machine - you are going to spend about $270.

    With linuxcnc and mesa hardware - you get true closed loop 6 axis analog control plus 48 i/o and expandable. $280 (comes in ethernet, pci or pcie)

    sam
    Thanks Sam. Yes, the Viper is not economical for the problem I'm trying to solve - it would be better to buy used step/dir drivers. I'm seriously considering the LCNC/Mesa route, but compared to Mach3, LCNC seems like learning Mandarin compared to learning Spanish! One advantage of LCNC is that the Mesa boards are easily available in Europe.

    It looks like the YAPSC project has extinguished itself, with no boards currently being made - shame.

  7. #7
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    942

    Re: Step/direction to analogue converter

    Triplet
    No problem. if you think $89 per axis on a CNC machine s "not economical " to save your servodrive ..omg

    ( btw..I make about $40 profit on one on those.. not counting the couple hours of work to build and test it and the 1000's of hours to develop it and write the code, and tuning program. )

    good luck finding a solution, ( but please don't order one from me. )

    Larry K
    Manufacturer of CNC routers and Viper Servo Drives
    www.LarkenCNC.com and www.Viperservo.com

  8. #8
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    Re: Step/direction to analogue converter

    Wow

  9. #9
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    Re: Step/direction to analogue converter

    Hi Larry

    I understand the difficulty of making a living at a bench too well! If I was trying to run servos that were integral to the machine I'd very much agree $89 per axis is nothing. However, my situation is that I've acquired some servo drives very cheaply without realising they are analogue, so it's only worth bothering with them if I can do it on the cheap - by the time your converters end get posted to the UK and then get clobbered for taxes etc I can get replacement drives for not much more and sell off the analogue ones.

    Best regards

    David


    Quote Originally Posted by Larken View Post
    Triplet
    No problem. if you think $89 per axis on a CNC machine s "not economical " to save your servodrive ..omg

    ( btw..I make about $40 profit on one on those.. not counting the couple hours of work to build and test it and the 1000's of hours to develop it and write the code, and tuning program. )

    good luck finding a solution, ( but please don't order one from me. )

    Larry K

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