RE: [CAD_CAM_EDM_DRO] Re: Stepper motors only turning one directi on

So it sounds like what is happening is your direction pin signal is not
changing. It should be either +5(4, if that's what you get) for clockwise,
and 0V for counterclockwise; or the exact opposite. If it never changes,
then the motors will never reverse.

Check to make sure that you have the correct pin selected in Mach2, and then
measure the pin for the change in voltage when you change direction. First
measure at the PC, and then work your way through to the Centent driver.

In order to work correctly, your direction pin needs to go from (nominal) 0V
to +5V to change direction.

Andy Wander
Verrex Corporation


-----Original Message-----
From: coldfusionracingproducts [mailto:gokarts164@...]
Sent: Monday, June 07, 2004 1:45 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Stepper motors only turning one
direction

When I connect the direction wire to the driver, the motor spins in
a clockwise motion. When I disconnect the direction wire, the motor
spins counterclockwise. I'm still getting 0-4v signals from the
parallel port and they match mach2.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "coldfusionracingproducts"
<gokarts164@h...> wrote:

> Here is my setup:
>
> Centent Cn0143 Microstepping drives (older geckos)
> 680oz Camtronics Steppers
> 24v power supply
> PC with Mach2
>
> My motors are only turning in one direction. The distance traveled
> is perfect though. When I jog 1 inch left then 1 inch right, it
> makes it 2 inches right...
>
> I measured the signals coming out of the Parallel Port and I am
> getting changes in the direction voltage.
>
> Any advice?

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