PXI 7332, UMI 7772, P70530 Drive LabView example

I am using the following equipment in a single axis motion control setup.
PXI 7332, UMI 7772, P70530 Drive, NEMA 34 stepper motor, wiithout an endcoder.
I am able to operate the motor sucessfully using the Motion Assistant. I have used the generate code option but having trouble turing that into a simple VI.
Essentially I would like to create a simple VI to control the motor, and send it number of steps and direction information,
Any suggestions for a sample VI that is out there?
Thanks
Kevin

Hi Kevin,
You might try taking a look at some of the example vi's from LabVIEW's Example Finder. Go to Help » Find Examples... When that window pops ups, double-click Toolkits & Modules in the folder list, then double-click NI Motion Assistant. I'm guessing the "Straight Line Move.vi" or "Blended Move.vi" would be most helpful to you, but you could read the descriptions of each example listed for a little bit more information about what the examples are doing.

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NI UMI-7772 and third party Stepper Drives

Dear all
Now we want to control a stepper motor with voltage ratings up to 110 V and 0.5 A at 110 V
we have the 2 Axis PCI-7342 motion controller and the NI UMI-7772 Terminal block for third party motor drives
please advice , what is the suitable third-party stepper drive that can fullfill the above ratings and compatible with the UMI-7772 ??
i have found only one link for a company called ParkerMotion (check this link : http://www.parkermotion.com/literature/pdf/aries.pdf ) but I'm not sure if it is compatible with the UMI-7772 or not
waiting your replies and thanks in advance
Eng. Mohammed Ashraf
Certified LabVIEW Associated Developer
InnoVision Systems Founder, RF Test Development Engineer
www.ivsystems-eg.com

Almost any standard stepper or servo drive would be compatable with a UMI. The Parker Aries you have a link to is a servo drive, not a stepper drive. You motor ratings are unusual for a stepper motor. What is the brand and model? I have had good luck with Applied Motion stepper products. www.applied-motion.com

Problem Connecting Third Party Driver to UMI-7772

Hi All,
I am having a few problems in connecting my third-party servo-driver (Higen FDA-5020) to UMI-7772, PXI-7350 and PXI-8106. My problem is stated below:
1. During trial (i.e. before my programing), is the switches of Fault, Enable and Limit LED on UMI-7772 needs to be Active High or Active Low?
2. When I try to communicate from MAX by enabling the Axis 1, the "Disable" LED on axis 1 light up RED. Is this means that Axis 1 is "Enable" as red mean "NOT" and red disable mean "NOT-DISABLE"?
3. When I try to interact with my driver via MAX (the interactive option in MAX), the "Motion Function Execution Status" stated "Successful (No Error)" but the servo-motor is standing still. During the execution, Axis Status are showing red light on "Both limit switches are active" and "Home switch is active". Is there any effect on the interaction I am trying to do?
4. How can I control the Digital I/O in MAX? Or I can only control it through LV? and How can I control via LV? Will LV sense the Digital I/O itself?
Detail of my motor and driver:
Motor: LF 20
Driver: FDA-5020
Attachments are the connection pin for driver and UMI and servo motor and driver manual.
Thanks for your answer.
Attachments:
Machine Connection Allocation.pdf ‏374 KB
fda5000.pdf ‏1954 KB

Found the problem: it seems that the wire diagrams was wrong. After checking the resistance between the wires I founded that the 2 sets of wires per phase were Blue-White-Green and Red-Black-Orange, with White and Black being center tap, thanks to this NI page
http://digital.ni.com/public.nsf/websearch/0AEE7B9AD4B3E04186256ACE005D833B?opendocument&Submitted&&...
Now motor works properly!
Mark

Connection between panasonic motor driver & UMI 7772

Hi,
    I'm freshman in LV area and making a testing facility for the moment which has a servo motor need to be contorled by Labview. but it is a real prolem for me that how to make connection between UMI & Motor driver, the devices now I have as follow:
   Panasonic servo motor
    Panasonic servo motor driver A4 series MCDDT3520
    NI PCI-7342 2 AXIS Stepper/Servo Motion Controller
    UMI-7772
    did anybody got experience about Panasonic motor driver and UMI 777x series connection? pls. give me some suggestions, appreciate for that in advance.

The following page has all the latest panasonic servo motor/driver info. It may help.
http://www.clrwtr.com/Panasonic-Servos-Motors.htm

Where can I get LabView examples for PXI-6551 or 6552? Thanks

We are thinking of buying a 655x and wanted to see sample code to get an idea of its capabilities.
Does anyone know where I could find LabView examples?
Any other information related to the PXI-655x would be appreciated too!
Thanks,
-KP

Hi KP,
Thanks for your interest in the NI 655X. These products use a brand new driver, NI-HSDIO, which is based on DAQmx. We are still working on a more bandwidth-efficient web installer for the driver, but for now I have placed it on our temporary ftp site. You can find it at ftp://ftp.ni.com/incoming/HSDIO.zip
This driver contains a full set of example programs for both LabVIEW and CVI, and the help files are a great way to learn about the physical capability of the board.
Do you have any other questions about these products?

How do I connect UMI 7772 with ECMD 275 amplifier (from EC Motion)

Hi,
I have connected the UMI 7772 to the ECMD 275 amplifier from EC Motion to operate a stepper motor, but it`s not working. I connected the analog output signal from the control connector of the UMI 7772 to the Puls+ of the ECMD 275 and according to this the analog output ground to the Puls-. Furthermore I connected the Step (CW) of the UMI to the Direction+ of the ECMD and Dir (CCW) to Dir-, Fault + of the UMI to Ready+ of the ECMD and Fault- to Ready-.
Does anybody know if I can connect the ECMD to an analog output signal? Or does anybody have an idea what the mistake is?
Thanks to everybody!
Steffi

> At Axis Status there are the following LEDs red: Limit Switch is active and Home Switch is active. Does that matter???
Yes, it DOES matter. If the motion controller thinks that one of the limit switch is active, it does not perform any motion towards that (sometimes imaginary) limit switch. If it thinks that BOTH limit switches are active, consequently it does NOT perform ANY motion.
> Can we change that?
Yes. You can set the polarity of the limit switches to the opposite value, or disable them completely (if you do not plan to use any limit switches, in a rotary motion system, for example, this usually is not necessary).
In general, as mentioned above, NONE of the limit switch indicators should light up if you did not connect any switches. Obviously LabView has an initialization setting for the limit switches which is different from that in MAX.
You don't have to care about the HOME switch indicator too much. You can change the polarity or disable it, too, if you do not use any reference position in your motion system. (It is strictly recommended to use a reference position and a sensor on that position for practical use in case the system gets out of sync - there is no way the motion controller can check actual position of your system if there is no feedback via a HOME switch or a - rotary or linear - encoder.)

Viso missing on UMI 7772

Hi
I intend to wire my UMI 7772 to supply power to the forward, reverse and home sensors.
However, I have been measuring the voltage and there is nothing present. Both green lights come on for Viso and V on the UMI.
I read the following discussion:
http://forums.ni.com/t5/Motion-Control-and-Motor-Drives/Do-I-need-to-enable-something-in-MAX-to-turn...
It says there is a fuse blown and it should be returned to NI. This doesn't make any sense as I can control the Digital outputs on the Digital I/O Dsub, so surely it can't be a blown fuse or it wouldn't be possible to set these?
Does anyone know if there is a way to control the VIso output, either via s/w or and simple h/w fix?
Thanks,
Sean

Hi SeanJ,
I've attached a trouble shooting Knowledge Base that you may find helpful. It will give you some steps that may help debug the system.
http://digital.ni.com/public.nsf/allkb/92DC8DFC11B7DBCB862577BB006A9CF0
Unfortunately I cannot find a SW or HW fix for the issue as you suggested that there might be. Probably the best option is to open a service request by following the provided link below. Then you can contact your local NI branch for repair options and a detailed debug process can begin.
http://www.ni.com/support/
Richard S
Applications Engineer
Certified LabVIEW Associate Developer
National Instruments UK&Ireland

LabVIEW example problem

i have install labview 7.1 development software with driver , on windows xp
i am not able to open example . it shows following errors "CAN NOT FIND LabVIEW SERVICE PORT FROM SERVICE LOCATER YOU WILL BOT BE ABLE TO BROWS DIRECTRY STRUCTRY" while when i make any programme it works
please help to solve this problem
thanks
R.R.YADAV
[email protected]

Hi,
LabVIEW Example Finder uses NI Service Locator in the background. Try to restart the Service Locator and see if that helps. More information on this can be found at the following link.
http://digital.ni.com/public.nsf/websearch/8C00F1144B2CD73E86256DEF00698AC3?OpenDocument
Also, make sure that there is no antivirus or firewall application running in the background when you try to open the example.
Regards,
Ankita A.

Kollmorgen Motors with PCI-7342 and UMI-7772

Hi,
I am trying to connect a pair of third-party servo-motors (Kollmorgen AKM11B-ANCNC-00) and drives (Kollmorgen AKD P00306-NBAN-0000) using a National Instrument motion controller NI PCI-7342 and motion interface NI UMI-7772.
Ever since the setup has been connected to a new computer, the motors aren't moving even though they are connected. The motors are detected by the GUI for the motors (Kollmorgen Workbench) but the program shows that the hardware is not enabled.
It has also been noticed that the LED indicating 'Interlock' shows red, and so do the LEDs indicating the 'Disabled' for both the axes on the UMI.
The 'Axis Configuration' for both axes on the NI MAX program indicate 'Enabled'.
Since only the PCI board has been switched from the old computer (where the setup was working well) to the new one, most cable connections have been left untouched.
Any help/suggestions on why the motors aren't working is welcome.
Thanks in advance,
Subhabrata

Could you explain a little more on what you mean by 'current settings on limit switches' ? Anyway in accordance to the link you attached to the previous reply, we changed the settings on the NI MAX program to correspond that on the switch (on the UMI) and now we don't get the error (70119). Thanks for that.
But we still cannot get the motors to work. The 'interlock' light is still on. We took out the 'control' and 'feedback' ports that go into the UMI for the two axes and probed the voltage between pin 6 and pin 9 on the control port. One link (from the Knowledgebase) had suggested that we would get a voltage around 24V, but we did not. It was the same for both the axes. Does that suggest anything ? Should we look into replacing the cables connecting the UMI and the motion controller (even though the they were working fine before we moved set-up) ? Or could it even have something to do with the motion controller itself ?
Thanks in advance,
Subhabrata

UMI 7772 voltage limit?

Hi,
does anybody know if the UMI 7772 releases voltage under 5V?
I tried to run a stepper motor wit the UMI 7772 (with MAX). There is no error at MAX, Axis is moving, no LEDs are red, but the motor isn't moving?! So my only idea is that the voltage released from the UMI Axis is beneath 5V (because the motor needs 5V at least). I connected the motor to the step signal and digital ground of the control connector of the UMI Axis. Are there other possibilities? Can I set the voltage release to 5V anywhere?
Thanks a lot.
Steffi Kono

I just checked the manual briefly, and it is stated that also in the 5V input version optocouplers are used.
Optocouplers usually need several milli-amps to drive the input LED. Some work with 3mA, some need 5mA, virtually all will work with 10mA input current.
The TTL output of the UMI/NI board will be current limited by the 3.3kOhm pull-up resistor. With the load of an optocoupler, the output voltage will break down to the forward voltage of the input LED which probably is around 1.0V at the given current limit.
To drive optocouplers, it is better to use the outputs of the NI boards/UMI in "sink mode". Connect a +5V source to the (+) terminal of the driver input in question, and connect the (-) terminal to the output of the NI board. The power supply must have common GND (DGND) with the NI board. In sink mode, the outputs can drive up to 24mA which is more than sufficient for all optocoupler inputs.
Note that the logic level of the outputs is reversed. You should set them to "active low" mode. I.e., if you write a 0 into a given output, the output transistor will switch on. In source mode, the voltage across the output resistor would break down, thus yielding a TTL low level. In sink mode, current will flow from the +5V source through the optocoupler and activate it. This is not very important for the STEP output, but for the DIR output this is VERY important - direction of movement will be reversed if you use sink mode instead of source (TTL output) mode.

I would like to detect all the keyboard key is okay, but not every key can be detected by using LabVIEW example, keyboard keycode

I would like to detect all the keyboard key is okay, but not every key can be detected by LabVIEW example ( we can use 『basic input demo.vi』to detect normal key』.
I want to detect some 『hot key』 for example some keys exist in the upper part like 『search key』、『e-mail key』、『volumn control key』...etc. They are very often to be watched in some new keyboards, but we still don't know how to detect if their functions are okay.
Can we detect signals of these 『hot key』 in LabVIEW? We can apply these hot key's functions in XP, so we should detect their signal, I think, but I can't do it.
I serach some information about this question, and somebody said we can detect hot key's signal by grabing 『keybode』 these hot key feedback. But I don't know how to do these. I can't use VC. So anyone can give me a LabVIEW VI to grab keycode? Or any other solution we can detect all the key on the keyboard, including hot keys?
Thanks!
Regards,

Maybe that is the limitation of Acquire Input Data.vi.The vi can't identify the Unformal key.
You can try to use Event structure and set to listen "key down" event.
There are two terminals VKey, ScanCode will sent out the information when you press key.
There are two pictures in attached file, 2.jpg will show you the detail.
Good luck.
Attachments:
SpecialKey.zip ‏17 KB

UMI-7772 position power connector part number

We lost an UMI-7772/7774 4-position power connector (power input connector for V, C, Viso and Ciso). Anybody knows what is its part number and manufacturer?
Ben64

fblerg wrote:
Hi Ben,
The power connector is a Mini-Combicon 4 position connector. The part number is 761785-01. You will have to call the Service Line to get pricing and availability. You can get these from Digikey, which might be a better option for these.
http://www.digikey.com/product-search/en/connectors-interconnects/terminal-blocks-headers-plugs-and-sockets/1442750/page/2
http://www.digikey.com/catalog/en/partgroup/combicon-fk-mcp-series/2933
Hi Frank, thanks for the answer. The 761785-01 link is not working (probably only available to NI employees) and a search for 761785-01 on the NI website returns nothing found.
Ben

OO question in LabVIEW example

Hello,
I am trying to learn OO and I have a question in the LabVIEW examples. See the attached image
What is the protected VI's? It looks like a collection of VIs with a type def. Isn't this a class? Why isn't it a class? What is going on?
Thanks

No image attached. Which example are you looking at?
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In the NI-5640R Instrument Driver API Examples for the Modulation Toolkit what is the mode of operation of the DAC/DUC(AD9857)

In the NI-5640R Instrument Driver API Examples for the Modulation Toolkit what is the mode of operation of the DAC/DUC(AD9857)

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Message Edited by Vinny ICS on 05-25-2009 05:04 AM

Converting instek psw labview examples from v8.2 to v7.1

The labview examples v8.2 of the instek psw series in needed in a 7.1 version. All I need is to control the constant current and constant voltage. I can supply the examples and visa.vi's or they can be obtained at instekamerica.com under downloads/software/power supplies/psw series. I need this because other legacy hardware must run on v7.1 labview. Here are the attached zip files.
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PXI 7332, UMI 7772, P70530 Drive LabView example

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