03-27-2015 03:34 PM
Hi, I am new to LabView and I need to control a linear positioning system using Labview. I have 2 stepper motors with 1.9 amps from Superior Elevtric Inc, 2 MD125 microstepdrives from Oregon Microsystems Inc and a USB DIO96H/50 USB computer interface from Measurement Computing. I would like to know how to start with the coding for the control of the system using Labview. It would also be helpful if I can get some examples and reference realted to this.
Thanks,
Bharath
03-30-2015 02:54 PM
Hi Bharath,
Could you provide additional information on your application? What are you trying to do with your stepper motors? Following is some very general information on stepper motors and LabVIEW:
The following link describes different types of motors, including stepper motors, and has several links to related information
Motor Fundamentals:
http://www.ni.com/white-paper/3656/en/
The following link has general information on motion control:
Fundamentals of Motion Control
http://www.ni.com/white-paper/3367/en/
The following link describes a specific setup for a stepper motor control in LabVIEW:
Drive Stepper Using Digital output with Pulse sequence
These should provide enough general information to get started.
Thanks
03-31-2015 03:51 PM
Hi Andrew,
With the stepper motor I and labview code, I need to control the linear XY positioning system. I am using Measurement Computing USB - DIO96H/50 for data acquasition.
Thanks,
Bharath J S
04-01-2015 06:11 PM
Could you provide some more detailed information about the linear positioning system you are using?
04-02-2015 03:43 PM
I just need to run the stepper motors to operate the linear positioning system.
I have PCIe 6321 card and SCB 68 connector block. SO will the PCIe 6321 work as a 2 axis motion controller ?
04-02-2015 04:38 PM
The positioning system is jusn an XY table
04-03-2015 12:01 PM
The stepper motors should just need a PWM signal which you can source from your digital I/O lines, so your PCIe 6321 should work. The Fundamentals of Motor Control document I sent you should have most of the information you need to get going. There is a link on that page to "Controlling an X-Y stage with a joystick which should be helpful to your application, you will just need to replace the joystick with your intended mode of control.
04-03-2015 12:07 PM
I am not intended to move it with joystick. I have MD125 driver from Oregon Microsystems Inc for the step and direction control and can I connect it directly to scc - 68 connector block ?
Thanks,
Bharath J S
04-06-2015 08:29 PM - edited 04-06-2015 08:29 PM
The drive should interface directly with the SCB-68. However, the drive can operate up to 80V. The SCB-68 is rated for 42 Vpk/60 VDC, so make sure you don't connect anything to it greater than that.
04-07-2015 06:25 PM
Andrew,
Now I have changed my setup. I have connected my stepper motor directly to the usb via serial connection. Can I get an example VI to run the motor ?
Thanks,
Bharath J S