. .

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. 11-12-2011 #10
    Jonathan's Avatar
    Lives in Leicester (Home) or Nottingham University (2nd Home), United Kingdom.
    Jonathan
    Last Activity: 05-04-2020 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 3,571. Received thanks 325 times, giving thanks to others 8 times. Referred 1 members to the community.
    Quote Originally Posted by Gary View Post
    If the voltage going to the direction is only 2.99V, it is unlikely a problemn with the driver but the signal is too low for the opto to change.
    3V is borderline, more susceptible to interference, (driver manual says minimum 7mA, 2.99V gets about 4-5mA) yes, but as the same signal works with the other drivers it's less likely to be that. Still it's worth just applying 5V and 0V to the direction pin from a power supply, or directly from the USB +5V to check.
    Last edited by Jonathan; 11-12-2011 at 03:15 PM.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. tree problems!
    By kingcreaky in forum Woodwork Discussion
    Replies: 8
    Last Post: 02-06-2014, 12:35 PM
  2. Mach3 PC problems, help please....
    By Davek0974 in forum Plasma Table Machines
    Replies: 13
    Last Post: 30-01-2014, 07:05 PM
  3. F-Engrave problems
    By cropwell in forum CAD & CAM Software
    Replies: 29
    Last Post: 29-06-2013, 03:48 PM
  4. problems since update
    By motoxy in forum General Discussion
    Replies: 6
    Last Post: 02-11-2012, 06:14 PM
  5. NEW MEMBER: MDF Problems
    By MrWiz73 in forum New Member Introductions
    Replies: 4
    Last Post: 31-12-2011, 12:39 AM

Bookmarks

Posting Permissions

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

Forum Rules