Page 2 of 2 FirstFirst 12
  1. #11
    adding more detail to post 7 for any one wanting to use a BOB with opto-isolated outputs and stepper drivers with opto-isolated inputs

    the problem with the BOB supplied as part of the kit is ue use of the slow PC817 opto-isolators used for the outputs

    I would expect the DM860A stepper drivers would have a PC817 on the enable input and a high speed isolator like a HCPL2531 for the step and direction inputs
    as used on this Tormach driver input

    Click image for larger version. 

Name:	10 pin connections 3.jpg 
Views:	4 
Size:	195.7 KB 
ID:	25010

    the diagram is from

    if I used a breakout with opto-isolated outputs then I would look for a BOB like this -

    or this

    they are just two of example found

    Last edited by john swift; 1 Week Ago at 12:23 PM.

Page 2 of 2 FirstFirst 12

Similar Threads

  1. Sieg X3 size conversion kits - what is available?
    By men8ifr in forum Milling Machines, Builds & Conversions
    Replies: 0
    Last Post: 4 Weeks Ago, 05:06 PM
  2. eBay: Bridgeport J Series Turret Mill
    By steve400 in forum Items On eBay UK
    Replies: 0
    Last Post: 24-04-2017, 04:11 PM
  3. Bridgeport series 1 MDI / CNC tooling
    By drumsticksplinter in forum Milling Machines, Builds & Conversions
    Replies: 7
    Last Post: 08-03-2013, 04:47 PM
  4. Complete conversion kits?
    By leitzscope in forum General Discussion
    Replies: 3
    Last Post: 01-05-2010, 07:57 PM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts