. .

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. 02-09-2019 #15
    cropwell's Avatar
    Lives in Nottingham, United Kingdom.
    cropwell
    Last Activity: 28-05-2023 Has been a member for 9-10 years. Has a total post count of 1,646. Received thanks 170 times, giving thanks to others 30 times.
    Have a look at this thread

    http://www.mycncuk.com/threads/10262...oes-nt-it-work


    You can regard the LJ12A3-4-Z/BX as a normally open relay, where the output is switched to GND when activated. The fact that you supply 12-36V to the electronics of the induction sensor is a red herring. The unswitched output virtually floats and usually pull-up resistors in the BOB strap it to 5v. Meter your BOB input and you should find 5v. If you don't, then you have either buggered the BOB with mis-wiring or the BOB needs a 5v external pull-up resistor. I'll just clarify that last phrase - a resistor to pull the BOB input to 5v, I use a 10K if necessary.
    Last edited by cropwell; 02-09-2019 at 10:38 PM.
    Reply With Quote Reply With Quote

  2. The Following User Says Thank You to cropwell For This Useful Post:

« 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. G540, homing switches and mach3
    By marbles in forum Artsoft Mach (3 & 4)
    Replies: 11
    Last Post: 02-06-2018, 02:55 PM
  2. Problem with homing
    By Andyman in forum Gantry/Router Machines & Building
    Replies: 4
    Last Post: 22-03-2016, 07:56 PM
  3. Homing switches & 'methods of working' (Mach3)
    By HankMcSpank in forum Artsoft Mach (3 & 4)
    Replies: 15
    Last Post: 19-10-2012, 12:54 AM
  4. Homing Switches
    By m_c in forum General Electronics
    Replies: 3
    Last Post: 04-11-2010, 11:21 PM
  5. A simple query about homing switches & milling practise
    By HankMcSpank in forum General Discussion
    Replies: 5
    Last Post: 13-06-2009, 11:56 PM

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