stepper motor control with usb-6008

[ivandragoer]

Do you have any front panel coding to control the speed and direction of the stepper? Thanks.

[Tom_W_[DE]]

Hi iangu-

I'm not exactly sure what you're asking for here- can you please clarify exactly what kind of example you're looking for?  What type of signals does your stepper require, which device do you want to use to generate them, etc?

Thanks-

[ivandragoer]

Hi Tom,

Thanks a lot for replying.

I am going to use Labview to control the motion(direction & speed) of an actuator (hayton 1400series 14 captive, www.hsi-inc.com), The driver takes TTL signals from an I/O card (ni USB daq) which is connected to the computer).  I'd like to create the front control panel to conveniently manipulate the direction and speed of the actuator, e.g. to pre-designed some motion pattern.

I appreciate your attention.

Thanks

Ian

[RM2]

All you would need to do fir direction is provide a + or - dc voltage. This could be done on one AO channel. Use a simple boolean switch to change the voltage. The steps would come frome a counter but you would need to be able to do a frequency sweep up then down to produce an acceleration profile. sped could be determined by a knob or slider control that sets the output frequency (steady state). You could even have another knob to control the accel ramps. And remember these signals must be fed into a motor drive since the NI cards will not be able to provide the necessary current capability.

[RM2]

I took a look at that website and did not find anything in a 14 frame 1400 series actuator. Which drive are you using? I am not familiar with their products.

[ivandragoer]

Thanks for your help!

for the actuator: http://www.hsimotors.com/hybrid/size14-hybrid-linear-actuator_captive.htm

for the driver: http://www.hsimotors.com/drives/Chopper-drives.htm

I am not too sure if the usb 6008 can do the job or not, if possible please advise.

thanks a lot!

Ian

[Steve]

An alternative is serial port control using a baord that accepts high
level (GOTO, etc) commands and calculates appropiate acceleration and
includes output driver for moving the motor. Several like this are
available for about $100.

http://www.stepperboard.com/

http://www.weedtech.com/