Re: Camtronics and Sanyo-Denki Review

At 07:05 AM 11/9/2000 -0600, you wrote:

>I have the controller assembled and running, the problem I am having is the
>motors seem to jump around a bit or sound like they are
>moving but really are not..

As others have suggested, you might just need some load on the motors
(especially ones that big). It's also possible you're hitting them with
too fast of a step rate. Especially with big motors you have to start slow
and ramp up. The "fast jog" mode in your software may or may not have
ramping. You also may not have the ramping values correctly set. If you
feed a stepper too fast of pulse stream, it SOUNDS like it's running but it
just sits there. Try slowing the maximum speeds in your software way down
(to just a few inches/min and/or a few hundred steps/second).

It's also possible you have one of your motor windings connected backwards
or not connected at all. That would also cause noise and no
movement. Different motors have different wiring configurations so be sure
you know how yours are wired.

If all of the above fail to produce any motor movement, there might be a
problem with your controller or setup. I'm not familiar with the 5 amp
boards, but make sure you have any jumpers set properly.

Mike