Connecting stepper motor to the module 9512

Hello,
I must do project in LabVIEW.
I use the compactRIO with module 9512 (Stepper Drive Interface Module with Encoder Feedback). I built a small program of this tutorial http://www.ni.com/white-paper/9666/en#toc10. Now I need connect stepper motor to the module and I would like to run my VI.
I want to connect small stepper motor (which once was in the 3.5-inch floppy drive - this is bipolar motor with four pins) with module 9512. I don't know which pins DSUB or MDR I must link with my inputs stepper motor. "In Getting started with NI 951x.pdf" written: "Connect the Step and Direction outputs to the stepper drive." and "Connect the Drive Enable output to the stepper drive."
Which outputs I should connect with my stepper motor?
Thank you in advance.

That is correct, these elements or their equivalent. It is necessary to convert the control signals from the 9512 into motor drive signals.
The P7000 getting started gives an overview of all this:
http://digital.ni.com/manuals.nsf/websearch/A236090A30FBDD6C86257A3E00499610
Edwin!

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Running two stepper motors at the same time from one port

Hello,
I have to run two motors at the same time - one used to move a linear ball screw and one to turn a grip. I am doing tension and torsion testing on small wires, but tension and torsion have to be done at the same time. I also have to build in the ability for each motor to take multiple steps, ie. have a motor take x number steps at y velocity and then move x number of steps at z velocity. Both motors need to be able to do this. However, I am having problems getting the motors to run at the same time and to take all the steps. The motors are connected to two RMS Technologies R356 controllers. Both of the controllers are then connected to one RS485 to USB converter card, and that card is connected to one of the USB ports in the computer. Currently, I pass an array of commands to two for loops each containing VISA read and writes. I've attached the vi to look at. All of the timing stuff in the code is because a new command cannot be sent to the controller before the motor is done executing the previous command. If commands are sent right after one another, the controller will only execute the first command and then return with an error.
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Solved!
Go to Solution.
Attachments:
Motor Controller (Sub VI 3).vi ‏41 KB

I'm not too clear on exactly what you are trying to accomplish or some of the details.
Are there equal number of torsion and tension steps?
Is there a pairing between a torsion and tension? For example, you want to tension and torsion simultaneously, but those two together make a complete step?
Do you want to wait until both the torsion and tension have completed before moving on to the next torsion/tension pair?
Is there any time delay you want to hold at before moving on to the next step.
When working with state machines, it is important not only to define the states, but also the logical stepping from one state to the next, or alternatives based on conditions. It could be flowchard, but sometimes people call them state charts.
Right now your latest posting has goes to "Write to Motor" event though and will wait there forever because there is nothing in the queue to write out through the VISA port.
Let's assume your first state would happen to be Enqueue Tension (in order to get something in the queue), you will actually queue up all your tension commands at once with the For loop. Then i will be 1 less than the size of the array it always will be because for an array size n, i will go from 0 to n-1 on each iteration. So your false case will run and you will go to "Write to Motor". Write to Motor will run and dequeue the first command then go to Waiting for Response. Waiting for response will iterate through the while loop until 66 or 67 comes back. I assume only 66 will come back for tension since you have yet to write a torsion command. Once that comes back, it will go to Enqueue Tension again and insert a whole other series of commands. Then go back to write Motor and will take out the 2nd queue element from the first set of commands your wrote. It will stay in a Tension mode and the Queue will grow endlessly putting in a whole new series for each element that you dequeue.
A state machine is the way to go, but I can't really sketch one out for you because I'm not sure exactly how your applications is supposed to work. If a tension and torsion command are paired together, perhaps you should just queue them together and write them out at once. But the key thing is to sketch out on paper your application and flowchart exactly how the program should progress from step to step.
PS: One other thing, make sure you wire the queue reference wire through all states.

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Hi guys,
I am starting a project in which I need to rotate a small object (about the size of a calculator), on a stage, in increments of ~2-5 degrees a number of times.
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[will work for kudos]

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Hi,
I am developing a control system for the speed control of a gas turbine. So for that i need to change my present manual movement of the fuel valve to one by a stepper motor. The valve is very sensitive, so i need a high resolution stepper motor (100,00 steps per revolution). I have a NI CRIO and have a digital I/O module fit on the chasis. With the existing setup, i would like to know what is the best stepper motor i can get in the market with least modifications to my current setup. If such a thing is not available, then what is the next best choice. Can anyone please help me out on this.
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Hi Umesh,
could you please provide some more information? First I feel a bit uncertain by the resolution that you are looking for? Do you mean 10,000 steps per revolution or 100,000 (with a missing zero at the end)?
If it's 10,000 steps/rev, you could use a standard stepper motor (200 steps/rev) with x50 microstepping. If it's 100,000 you definitely will need a gear box. In general I would also recommend a gear box if you need 10,000 steps/rev, as x50 microstepping is already a quite high value, resulting in reduced accuracy (steps are not evenly distributed anymore).
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Could you please provide information about the required velocity and acceleration values?
What about the inertia of your valve? Any idea about motor sizing?
Which cRIO digital I/O module are you using?
Are you using NI-SoftMotion?
Have you thought about using cRIO drive interface modules (makes programming much faster and easier)?
Have you already decided which power drive to use?
Kind regards
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National Instruments

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Hello:
I'm trying to setup a motion control system and I'm facing some trouble. The final goal is to be able to control a couple of stepper motors.We already have a PXI System with a PXI-7354 motion controller, and a UMI-7774 connector block. What we don't have yet is the stepper drives and motors. It's likely that because of torque requirements we may need a gearbox. Here I disclose some of my doubts:
We are considering the P70360 or the P70530 drives, but I would like to know if it is possible to connect thrid party drives to the motion controllers? What requirements this drives should comply?
Similar as the first one, Is it possible to connect third party stepper motors to the NI stepper drives? What requirements this motors should comply?
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Robst - CLD
Using LabVIEW since version 7.0

Hello Robst,
Either the P70360 or the P70530 will be good drives depending on your wattage requirement. A loose rule regarding wattage is not to exceed 80% of capacity. If you think you'll exceed that, buy bigger.
Regarding third party drives, though many are compatible we cannot guarantee compatiblitty of all drives nor are we able to support them. That being said you may want to take a look at these KBs which describe some issues to be mindful of when looking at third party drives.
How Do I get the 73xx Controller and UMI-7764 to Drive a Third Party Stepper Motor?
How to Connect NI 73xx Digital Outputs to Third Party Equipment
How to connect the 73xx inhibit and command signal outputs to third party drives.
Some points to glean from the above links are what kind of current gets sinked and sourced by the drives to insure compatibility. Regarding stepper motors, again we will only be able to guarantee compatiblity and provide support for stepper motors provided by NI. That said, the majority of stepper motors I've seen are compatible with our equipment assuming the drive it's connected to is compatible. Below are some articles that may help you make a decision on what type of stepper motor you choose.
Selecting the Proper Size Stepper Motor
NI Stepper Motion System Selection Guide
How Can I Determine My Stepper Motor Wiring Without the Stepper Motor Pinout?
As for gearboxes, you will just need to make sure that the gearbox you select fits properly with the motor you are using. Often the gearboxes are standardized to NEMA sizes that correspond with the stepper motors. Kollmorgen, who manufactures the motors that we sell, also makes gearboxes. Their gearboxes would be a good place to start.
Regards,
Daniel H.
Customer Education Product Support Engineer
National Instruments
Certified LabVIEW Developer

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Attachments:
4LeadBipolarSteppingDriver-linengineering--4218m-54p-04.pdf ‏652 KB
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Hi jhprks,
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http://decibel.ni.com/content/docs/DOC-6385
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http://zone.ni.com/devzone/cda/epd/p/id/3611
High Performance Stepper/Servo control:
http://sine.ni.com/nips/cds/view/p/lang/en/nid/10026
Stepper Motor Theory of Operation:
http://zone.ni.com/devzone/cda/ph/p/id/248
Stepper motor Drives:
http://sine.ni.com/nips/cds/view/p/lang/en/nid/3308
Adam
Academic Product Manager
National Intruments

Is there a NI controller board that can control a 5-phase stepper motor?

I'm developing an application using Borland C++ Builder 6 under Windows 2000. I need to control a 5-phase motor from within my application. I have some old Keithley Metrabyte MSTEP-5 ISA boards that would work with the motor, but Borland doesn't allow direct port access to the boards to give them instructions. So, the second question would be: Would the aforementioned NI board be programmable using Borland C++ Builder 6?

Alright for the Universal Motion Interface (UMI-7764).
Firstly, the equipment I am focused on a is friction machine test and I would like to know if the static friction compensation (NI 7340 Series) is an important factor (probably for this kind of test)?
Then, the D550 or 650X0/X1 (Berger Lahr) are the steering cards for the 5-phase stepper motor (same manufacturer).
Here are the specifications:
- Operating voltage: 70...130 VDC
- Power input: max. 8A
- Adjustable achievement: max. 1000 W
- Rated current: 2...5 A/Phase
- Dynamic current increase by Boost I_Boost=100...190% In
max. 6A/Phase
- Engine line: Length <100m, cross section of a line >= 075 mm2
R_Lmax < 2 Ohm)
- Signal voltage for D 650.00/D 650.50: 20V...30V
D 650.01/D 650.51: 2,5V...5,25V
- Input currents: typ. 10 mA
- Signal frequency (pulse entrance): max. 100 kHz
- Relay contact exit change-over switch): 36 VDC / 30VAC,0,2 A
- Operating temperature: 0...55°C
- Storage temperature: 0...70°C
- Dampness class: "F" DIN 40400
- Mechanical dimensions:
- Weight: 1,3 kg
Moreover, I have an incremental linear encoder attached (Heidenhain LIDA 201) connected to adaptor EXE 6190B
for measuring the displacement of the stepper motor. The adaptor EXE 602, 605, 610 outputs a voltage between 1.4 and 4 volts, 1.4 and 4 volts, 0.4 and 1.7 volts, a frequency range from 0 to 50 Hz, and an operating voltage 5 volts +/-5% / 120 mA.

To drive Unipolar Stepper Motors using MID drive

Hello friends I have purchased a RS components MID drive and I want to control a unipolar stepper motor using the same. The stepper motor is having 6 wires. I have used the same drive to run a bipolar stepper motor but I need to know as to how I can wire a unipolar motor to the same.I would like to know the connections and the disadvantages if any in driving a unipolar stepper motor using the MID drive.

You can drive unipolar motors with the 7602/7604, but you wire them as if they were bi-polar. The user manual (which can be downloaded from the NI web site for free) shows the way to wire the 4-phase motor as a two phase motor on page 26. The basic idea is that you either ignore the center tap - wire Phase A to Phase A, and Phase A' to Phase A', or ignore one of the phases by attaching Phase A to Phase A, and Phase A' to the center tap.
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How to run a stepper motor for an amount of time determined by a feedback?

Hi,
I'm using labview 8.6 and I'm trying to use a ORIEL sterppermike with a 20025 controller.
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C:\Program Files\National Instruments\LabVIEW 8.6\examples\DAQmx\Counter\generate pulse.llb
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SRL Matteo2.vi ‏121 KB

Hi, I'm not sure whether this is the right place for asking this question or not and if not, then please guide me to the right place for asking such question. Thanks.
I have a stepper motor with the Vector Network Analyzer Anritsu MS4623B. I got it up and running with the LabWindows/CVI. I need to sync the motion of the stepper motor with my data acquisition. Basically, I have to acquire the data in a way that in the start the motor will come back to home position wherever it was and then I want to move it to the specific position to do the measurements (For Example, I want to measure the 40 GHz channel between 1m to 3m movement of a stepper motor on a linear positioning system (ball-screw)). I've interfaced the VNA with the PC using LabWindows/CVI and I've controlled the clockwise and anti-clockwise movements of the stepper motor using LabWindows/CVI but I'm unable to sync the system in a way that whenever I run the code, the motor will run back to the home position and then move to a specific measurement start position and move till the end position and in between do the increment and stop and acquire the data. Is there any one to help me please? It's really urgent please and I'm doing this thing first time so please guide me in a proper way. I shall really apprecaite that and will be highly obliged with you. Thanks for your time and concern.
Thanks and Regards.
Attachments:
VNA & Motor Control User Interface.jpg ‏199 KB
VNA & Motor Control User Interface.jpg ‏199 KB
VNA & Motor Control User Interface.jpg ‏199 KB

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Any help would be greatly appreciated.
Regards
Billy
Attachments:
24.02.14.vi ‏146 KB

Hi Bilbo,
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http://digital.ni.com/public.nsf/allkb/5CD79190713D2B558625765F007FCC99
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I hope that helps.
Thanks and Regards,
Supreeth.K
Applications Engineer
NIUK

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Hi all,
How can I make a software with LabWibdows 5.5 and PCI-DIO-96 to command stepper motor (360step/360°, with 4 rotation/s) ?, the second part driver and a choice of the motor is not up to me.
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Hi, I'm not sure whether this is the right place for asking this question or not and if not, then please guide me to the right place for asking such question. Thanks.
I have a stepper motor with the Vector Network Analyzer Anritsu MS4623B. I got it up and running with the LabWindows/CVI. I need to sync the motion of the stepper motor with my data acquisition. Basically, I have to acquire the data in a way that in the start the motor will come back to home position wherever it was on the ball-screw linear positioning system and then I want to move it to the specific position to do the measurements (For Example, I want to measure the 40 GHz channel between 1m to 3m movement of a stepper motor on a linear positioning system (ball-screw)). I've interfaced the VNA with the PC using LabWindows/CVI and I've controlled the clockwise and anti-clockwise movements of the stepper motor using LabWindows/CVI but I'm unable to sync the system in a way that whenever I run the code, the motor will run back to the home position and then move to a specific measurement start position and move till the end position and in between do the increment and stop and acquire the data. Is there any one to help me please? It's really urgent please and I'm doing this thing first time so please guide me in a proper way. I shall really apprecaite that and will be highly obliged with you. Thanks for your time and concern.
Thanks and Regards.

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Which stepper motor is it? Is it the SST42D?
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Hi everybody,
I want to drive a stepper motor via the parallel port. The problem is to
create a constant frequency on a digital line of the port. I tried to do
so with a While-Loop with a certain delay, but the frequency varys due
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Attachments:
Martin.Eis.vcf ‏1 KB

How about a simple NE555 timer circuit to externally create the constant
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NE555 circuit? You could probably go to Radio Shack and pick up the
components for less than $10.
Jim
Martin Eis wrote in message
news:[email protected]..
> Hi everybody,
>
> I want to drive a stepper motor via the parallel port. The problem is to
> create a constant frequency on a digital line of the port. I tried to do
> so with a While-Loop with a certain delay, but the frequency varys due
> to occurrences like mouse-movement (due to the call-ups of interrupts I
> think).
>
> Any Ideas?
>
> Regards
> Martin
>

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Remember, code does exactly what you tell it.

Connecting stepper motor to the module 9512

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