Hello all, First time posting on the fourms. I am quite new to LabVIEW and working with stepper motors and I was wondering if I can get some suggestions from you guys. I have a P70530-SDN Stepper Drive and I would like to use that along with a custom LabVIEW program to control a single linear stage. The stepper motor I am using is a CTM22NLF31NAA00, CTM SERIES AMP Stepper with a 48V power supply. All I want to do for now is to move a carriage on the stage back and forth using the keyboard on a computer. I have been reading up on several documents about getting started with the P70530 Drives and the docs all seem to mention using a UMI and motion controllers as shown below: (from http://www.ni.com/pdf/manuals/372324d.pdf) I have heard somewhere that I would not need any further hardware if I utilize the P70530 driver, however I cannot confirm that. Would I also need to purchase additonal hardware to properly use my stepper motor? Also, from some of my early research into how to control a stepper motor using labview, I have seen some users interface with the motor using a VISA configuration, 73xx VIs or DAQmx. I am quite new to all of this and from what I can understand, I could use the NI-DAQmx if I have the the controller connected to a data acquisition board? Also considering I do not have a 73xx series controller, what would be a recommended method of using LabVIEW to interface with my motor? Are there any further documentation or threads I should read that might be releated to these issues? I apologize if my explanation of my problem is confusing. This is based off of my understanding of how everything works and I am not fully acquatinted with all aspects of LabVIEW or stepper motor control. Please do not hesitate to ask me futher questions regarding my project if you require more information. Thanks.

Hi Toby, To control a motor, generally you need a drive and a controller. You can think of the drive as the muscle and the controller as the brain. The drive physically moves the motor but the controller sends the signal to the drive and tell it how to move the motor. Take a look at the motion system selection guide and this page. They are nice overview of motion systems. So what you have now is the muscle, and need a controller to tell the drive how to move. As you stated, all the documentation involves a controller from NI. Using DAQmx to controll stepper motion is a posibility. However, since you are new to LabVIEW, it might not be a good idea since it requires to learn another set of API. It is also not the best practice for industrial applications. This community example is on using DAQmx to control stepper motors. Using the serial port is a bit tricky. There are two version of the P70530 drive. One is the P70530-SDN (this one NI sells) and the other one is the P70530-PN (sold by Kollmorgen). My understand is that for the SDN version, the serial port is only used for configuration. For the PN version, you can use the serial port for modbus communication to controll the drive. Seems like someone was able to do it in the past. To confirm this, I think it is a good idae to contact Kollmorgen. If you can control the SDN version with modbus, Kollmorgen probably has some documentation on the commands you can send as well.

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Home Community Discussion Forums Most Active Hardware Boards Motion Control and Motor Drives Topic

Motion Control and Motor Drives

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P70530-SDN Stepper Drive stepper motor control and labview

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Re: P70530-SDN Stepper Drive stepper motor control and labview

ewang52

NI Employee (retired)

‎05-17-2017 05:48 PM

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First things first, let's use integers instead of doubles to feed into the arduino nodes.

In your configuration, do you have your axis set to relative or absolute position? With relative position, you would keep the same position after each move without resetting.

Eric

Applications Engineer

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