Results 1 to 6 of 6

Thread: DeskCNC controller output current?

  1. #1
    Registered kolokithas's Avatar
    Join Date
    Jun 2006
    Location
    Greece
    Posts
    57
    Downloads
    0
    Uploads
    0

    Question DeskCNC controller output current?

    Hi all!

    Did any one know how much current at 5v can supply the controller of DeskCNC via its outputs?I would like to know beacause i d like to drive a relay.SSR relays after the apply of control voltage stay on even when the control voltage have been removed?

    "Two questions one aim!!!"

    Thanks


  2. #2
    Registered kolokithas's Avatar
    Join Date
    Jun 2006
    Location
    Greece
    Posts
    57
    Downloads
    0
    Uploads
    0

    Found it!

    I found that the controller can output 25mA at 5 volts!!!And because this supply comes out from the IC of the controller,be gentle!!! Ex. you can't connect directly a motor to the flood output


  3. #3
    Registered
    Join Date
    Feb 2005
    Location
    South Africa
    Posts
    77
    Downloads
    0
    Uploads
    0
    Each pin can supply 20mA at 5V, you really ought to buffer the output with a transistor or a darlington driver (ULN2003) and be sure to put the flyback diode. Alternatively buy a breakout board that has all of this done for you.

    Greg


  4. #4
    Gold Member
    Join Date
    Nov 2005
    Location
    USA
    Posts
    440
    Downloads
    0
    Uploads
    0
    Desk CNC has all this done for you. You must use a DC to AC electronic relay, you can control the spindle , coolant , lights etc.

    Adobe (old as dirt)


  • #5
    Registered
    Join Date
    Feb 2005
    Location
    South Africa
    Posts
    77
    Downloads
    0
    Uploads
    0
    Hi,
    DeskCNC offers this functionality but the interfaces are not there, ie the analogue spindle is PWM not 0-10V etc. Use a breakout board like this one: http://www.cncdirect.co.za/htm/cnc.html to see what I mean.

    Greg


  • #6
    Registered kolokithas's Avatar
    Join Date
    Jun 2006
    Location
    Greece
    Posts
    57
    Downloads
    0
    Uploads
    0
    Thanks for the "traffic" in my post.Because now im on the middle of the construction of my CNC Mill i dont have much time to surf the net...so at a later time i will post more issues for conversation.Belli,thanks for the link i already checked it,and i think the breakout board will fit my needs(even though i already fabricated my own PCB)i will probably change it to breakout board because i have some interference with the coolant pump(even with the opto isolator that i made) the controller picks up "noise" and stops.
    Future will show!!!

    "Many questions,one aim"

    See you!!


  • Posting Permissions


     


    About CNCzone.com

      We are the largest and most active discussion forum from DIY CNC Machines to the Cad/Cam software to run them. The site is 100% free to join and use, so join today!

    Follow us on

    Facebook Dribbble RSS Feed


    Search Engine Friendly URLs by vBSEO ©2011, Crawlability, Inc.