the motor needs more current and voltage than your labview card
has on its output. so you need an driver (and, as i recommend a
controler) (if you have time, you can build it yourself, if not,
buy one) in addition to your step-motor. I use the ST L298N and ST L297
if you have a controler, it has normaly inputs for step, direction,
half/fullstep, reset, enable.
you can use digital output lines to control these controler inputs.
i just had the same problem...it wasnt that easy for me as it looked... 😉
first idea is to run the step motor with oldschool hardware wires and
switches instead of labview ...
"sparafucile17" schrieb im Newsbeitrag
news:506500000008000000419E0000-1042324653000@exchange.ni.com...
> My setup: Labview 7.0 with PCI-7342 controller
card and NEMA size 23
> stepper motor.
>
> The dilema: I am new to both Labview and stepper motors and I need
> some basic flow instructions. All I want to do is to have a start and
> stop button on the panel. Start turns the motor CW and stop will halt
> it.
>
> I have a test panel using the following block sequence:
> Enable Axes
> Configure Step mode and polarity
> Load Counts/Steps per revolution
> Start Motion
> Stop Motion
>
> Is this the right sequence of labview functions? I tried this code
> and nothing happens (of course). Can anyone just give me a quick
> description as to what Labview code blocks I need to start and stop a
> stepper motor?
>
> Thanks,
> Jeff