05-02-2010 04:26 PM
Earlier you said you had a controller and driver for the stepper. Now you are saying you don't?
Have you tried any simple searches of the forum. A quick one of "PWM 6008' turned up this.
05-03-2010 02:22 AM
Hi,
contoller is the usb NI 6009....... i have a driver also ....... can u pls tell me what mistake i have done.......
05-03-2010 07:35 AM
So if I now understand correctly, you are saying that the driver is for the NI USB-6009 DAQmx device. Is that what you are saying?
Have you looked at the Knowledgebase link that Dennis provided? There is an example of code provided in that link.
Are you able to generate any type of signal using your USB-6009?
Can you post what you have implemented so far?
05-03-2010 10:40 AM
Hi,
i'll tell what exactly i'm doing now.......
1) I have a USB DAQ 6009 for generating the pulses for step motor......that step motor has a driver called DFR 1415A and the step motor is from vexta.......
These r the components i have right now...... can u tell me how to proceed with the next step......
05-03-2010 11:36 AM - edited 05-03-2010 11:44 AM
Sorry to ask more questions...
Does the driver (DFR 1415A) look like this?(the one in front of the motor)?
05-03-2010 11:50 AM
I tried to locate the specs on the driver to find out details such as amplitude, period (frquency), pulse widths (high/low) / duty cycle. I could not find anything on their website.
The only messages I got were the following:
No Results Found on "DFR 1415A*"
Your search - DFR 1415A - did not match any documents.
Suggestions:
Do you have those specs?
05-03-2010 12:18 PM
Hi,
yes it is the sameone we are using it ....... i'll attach the datasheet of the motor ans driver..... pls tell how to configure everything
05-03-2010 02:02 PM
I'll try to have a look at the data sheets tonight.
Maybe Dennis will beat me to it. He's the expert in motor controls using DAQs..
05-03-2010 02:19 PM
Photocoupler input, Input resistance 220, Input current 20mA maximum
Signal voltage Photocoupler ON: +4 to +5V, Photocoupler OFF: 0 to +0.5V
Step command pulse signal (CW step command signal at 2-pulse input mode)
Pulse width: 1μs minimum, Pulse rise/fall: 2μs maximum
Motor moves when the photocoupler state changes from ON to OFF.
Rotation direction signal, Photocoupler ON: CW, Photocoupler OFF: CCW
(CCW step command signal at 2-pulse input mode, Pulse width: 1μs minimum, Pulse rise/fall: 2μs maximum
Motor moves when the photocoupler state changes from ON to OFF.)
You will need to use the DAQ device to create a series of pusles from 0 to +5V amplitude with a minimum pulse width of 1 μs.
You connect the appropriate output of the DAQ device to the Pulse Signal Input Terminal (PLS) on the driver.
You need to provide a 24Vdc source (1.7A) to the Power Supply Terminals.
You need to do the other connections and configuration as explained in the data sheet.
You could use the Measurement and Automation Explorer to verify that the series of pulses look like what you wish to send to the driver.
You can look at the examples on how to generate pulses using the DAQmx devices. Look in the Help Menu, and select Find Examples and do a search onthe keyword "DAQmx" and have a look at the Stimulus Signal Generation example.
05-04-2010 02:04 AM
Hi,
can u give me some more information about the previous reply