Hello Guest it is August 18, 2019, 08:23:59 PM

Author Topic: Problem Testing motors off machine.  (Read 3594 times)

0 Members and 1 Guest are viewing this topic.

Problem Testing motors off machine.
« on: March 24, 2009, 07:40:20 PM »
I am running Mach3 with a Xylotex 3-axis, 425 oz.in. motor system on the bench, no load.
I can use the arrow keys or mouse over the direction buttons on the screen and the motors turn.
If I repeatedly jog  the motors activating the same direction button the Y and z axis motors will intermittantly revers direction.
I can't find a pattern on when and how often the motors will reverse direction while pushing the same direction button.
Does anyone have any ideas. It would be much apreciated.
Thanks.
Rick

Offline Hood

*
  •  25,849 25,849
  • Carnoustie, Scotland
    • View Profile
Re: Problem Testing motors off machine.
« Reply #1 on: March 24, 2009, 08:09:55 PM »
Bad connection, noise or problem on the driver board.
Hood
Re: Problem Testing motors off machine.
« Reply #2 on: March 24, 2009, 10:09:17 PM »
Thanks. I will look into the connections and ask Xylotex about testing the board.
Rick

Offline Tweakie.CNC

*
  • *
  •  7,882 7,882
  • Super Kitty
    • View Profile
    • Tweakie.CNC
Re: Problem Testing motors off machine.
« Reply #3 on: March 27, 2009, 04:29:54 AM »
Hi Rick

A similar problem was posted recently and the outcome was that the motor connections were incorrect.

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.

Offline budman68

*
  • *
  •  2,360 2,360
    • View Profile
Re: Problem Testing motors off machine.
« Reply #4 on: March 27, 2009, 05:01:02 AM »
I also had this happen recently with my 4th axis setup. When I had the cable from the motor directly wired to the drive via screw terminals, it worked flawlessly. When I set up a 6 pin DIN connector, I somehow got my wiring sloppy enough to have just enough solder touching 2 contacts (or a bad plug as I could not see any contact of solder anywhere) and this made the motor turn opposite directions when it should have only been going in one.

I cut the plug off and wired it straight to the drive again, and tada !, success again. Now to do a cleaner job soldering next time - ;D

Dave
----------------------------------------------------------------------
Just because I'm a Global Moderator, don't assume that I know anything !

Dave->    ;)
Re: Problem Testing motors off machine.
« Reply #5 on: March 27, 2009, 06:28:45 AM »
Thanks to all. I did cut off the connectors (that I made) to the "Y" axis motor and remade this wire and everything works fine now.
Either I will find a better connector or eventually once I am confident with the set up I will solder the cables to the wires.
Thanks.
Rick

Offline Tweakie.CNC

*
  • *
  •  7,882 7,882
  • Super Kitty
    • View Profile
    • Tweakie.CNC
Re: Problem Testing motors off machine.
« Reply #6 on: March 27, 2009, 08:04:32 AM »
Glad you got it sorted Rick. (don't take any soldering lessons from Dave  :D )

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.