Using the ENABLE output of the UMI-7774

I have a motion control system using the NI-7354 4-Axis controller, and the UMI-7774 interface. I am trying to use the ENABLE line for each axis to manually enable and reset the drive for each axis. I am using NI-Motion calls in Visual Basic to do so. I have setup the outputs using the following function call for each axis:
miStatus = flex_config_inhibit_output(b7354MotionCtrlBoardID, AxisNum, DISABLED, NON_INVERTING, NIMC_OPEN_COLLECTOR)
and I toggle the ENABLE lines using the following command:
miStatus = flex_set_inhibit_output_momo(b7354MotionCtrlBoardID, iMustOnMask, iMustOffMask)
I can successfully toggle the DISABLED LED on the UMI-7774 for each channel, but I am unable to see an output difference at pin 6 to control the drive enable line.
Viso has 24Volts connected
Ciso has 24V return connected
The ENABLED dip switches are set to ACTIVE HIGH for each axis
I've tried using Inverting and non-inverting polarity and setting the dip switches to ACTIVE LOW and I am unable to see any difference at pin 6 when I toggle the ENABLED line on and off.
any suggestions?

Hi GregH,
The best way to solve this problem is to first find out, whether the card is faulty or the umi is faulty. The method is as follows.
Take a blank PCB and connect 68 connectors to it. Get a 68 pin connector crimped to a 68 core cable at one end that fits into the PC. The other end of the cable has loose wires. Now assign ferul numbers to each cable from 1 to 68 and connect each of these to the connectors in the PCB. Now check the voltage levels at which ever pins you want. If you see a voltage, then you can replace your UMI and if you dont, then you can replace your card. I've tried this when my ADC on the motion controller was not working and found that the card was faulty. Be careful before trying it. I tried this under the guidance of a motion control expert. If you are not sure then you can send it to NI for checking or contact a field engineer in your location.
Regards,
Giridhar Rajan
Automation Engineer, Design
Cruiser Controls
Mumbai, India

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Umi 7774

Hi,
I have a question:
I have to wire umi 7774 and PXI 7350 , when I wire V and Viso and motion I/O cable to UMI , all axes are disabled , and FAULT , DISABLED leds are ON.
Is it normal??
I have already configured the PXI 7350.

Hi,
I'm using the UMI-7774 but the system does not work properly. My doubts are:
* My encoder does not have Channel A- (inv), channel B-(inv) and index- (inv). So I make a circuit to invert the channels A, B and Index with a CI-7404, converting the single-ended output to differential. Does it really works or only differential encoders are avaiable with UMI-7774?
* I connected the hall sensors A,B and C of the brushless motor at the feedback connector like show the Figure 3.12 of the UMI-7774 user manual. But my third-party drive also need to connect the hall sensors (a fault happend if it does not done). What should I do? Do i have to connect hall sensors at feedback connector and also third-party drive?
* What does Active low and active high means? When I have to change the LIMIT LED, FAULT and ENABLE to active high?
Thanks,
Renato Fernandes

UMI-7774 / PCI 7340 Disable Indicator Error

I'm using the UMI-7774 and PCI 7340. All components are connected properly stated internally with MAX, but all AXIS are disabled apon power up. I can't clear the disable AXIS 1-4. The Inhibit All and Interlock are not illuminated. I have trited to Initilalize the controller with "Clear Power Up Status.flx" and "Initialize Controller.flx". Yet every try and repower I cannot un disable all 4 AXIS.
Does anyone can help this issue, I have hit a wall??

Hey ConTeck,
Thanks for contacting NI. I've looked into your problem and just wanted to confirm that you are calling the PU Reset.flx the same way that I am. I rebooted my card so that it is in Power Up Reset state and then ran the attached screenshot and received no errors and the move went ok.
Are you able to initialize the board in MAX even? If you are unable to clear the PU Reset status at all, then there may be something else going on, but if you can clear it in MAX and then your program works fine, then this screenshot that I'm attaching to this post should work out for you. Let me know how it goes.
Take Care,
Evan D.
IMAQ/Vision R&D
National Instruments
Attachments:
PU Reset VI Screenshot.JPG ‏36 KB

UMI-7774 Axis1 Inhibit input/output (and Fault +/-) to corresponding Servo Drive signals

Hi,
I have servo drive (yaskawa sigma fsp) that i configured to work in Position command mode,
And i want to connect it to UMI-7774 with PCI-7344 also configured in MAX to work in P-Command mode.
The Servo drive has these signals:
/S-ON   (Servo ON input)
ALM+   (Servo alarm output)
ALM     (Servo alarm output)
The UMI-7774 on its Control Connector of Axis1 has these signals:
Enable
Fault+
Fault-
i read the umi7774 manual and also the servo drive manual, and didnt understand all the things because
the umi7774 manual named the signals Inhibit-input, inhibit-output
but there is no signals in this name on the UMI-7774/Axis1/Control Connector.
So, i think the wiring i need to make is :
[Servo Drive] /S-ON   < to >  [UMI-7774/Axis1/Control Connector] Enable
[Servo Drive] ALM+   < to > [UMI-7774/Axis1/Control Connector] Fault+
[Servo Drive] ALM      < to > [UMI-7774/Axis1/Control Connector] Fault-
is [UMI-7774/Axis1/Control Connector] Enable is same as Inhibit-Output ?
what about the inhibit-input, is the ALM+ from the drive is acting this role ?
And, because the servo drive and the pci7344 configured to P-Command (Position command) mode,
The control signals is connected in this way :
[Servo Drive] PULS      < to > [UMI-7774/Axis1/Control Connector] Step (CW)
[Servo Drive] /PULS     < to > [UMI-7774/Axis1/Control Connector] Digital Ground
[Servo Drive] SIGN       < to > [UMI-7774/Axis1/Control Connector] Dir (CCW)
[Servo Drive] /SIGN      < to > [UMI-7774/Axis1/Control Connector] Digital Ground
And for the feedback connector :
[Servo Drive] PAO      < to > [UMI-7774/Axis1/Control Connector] Encoder Phase A
[Servo Drive] /PAO      < to > [UMI-7774/Axis1/Control Connector] Encoder Phase A-
[Servo Drive] PBO      < to > [UMI-7774/Axis1/Control Connector] Encoder Phase B
[Servo Drive] /PBO      < to > [UMI-7774/Axis1/Control Connector] Encoder Phase B-
[Servo Drive] PCO      < to > [UMI-7774/Axis1/Control Connector] Encoder Index
[Servo Drive] /PCO      < to > [UMI-7774/Axis1/Control Connector] Encoder Index-
i read the ni-motion manual,pci-7344 and umi7774 manual and also the articles about configuring the Position Command mode
including the MAX setting.
i finally start to understand the setting after i read the PCI7390 which is position-comannd controller.
i just need to know if what i write here is correct.
(The servo drive manual is here:
  http://www.yaskawa.com/site/products.nsf/products/Servo%20Amplifiers~fspsigma.html?openDocument&seq=... )
Last thing, the "How to connect the 73xx inhibit and command signal outputs to third party drives" article
(http://zone.ni.com/devzone/cda/tut/p/id/3442 )
shows that we need resistors etc.. to connect the signals between the servo drive and umi-7774,
can i directly connect the signals using Pigtail cables the National instruments provide?
Thanks
Moti

Dear Vince,
this is the description from the servo drive manual about the following signals:
[Servo Drive] PULS (Reference pulse input)
[Servo Drive] SIGN   (Reference pulse input)
[Servo Drive] PAO   (PG divided output A-phase) same for PBO,PCO
i understand the following connection that i write here (for control and feedback)
from the PCI 7390 users manual (Table B-7 on Page B-15 : CN1 cable pin assignments)
the table shows the signals from the MCA-7790Y which is accessory
for connecting the pci7390 to Yaskawa Sigma 2 drive (which is the same as Yaskawa Sigma FSP drive).
So, is that the correct connections for using the umi7774 and this servo drive in position command mode ? :
[Servo Drive] PULS      < to > [UMI-7774/Axis1/Control Connector] Step (CW)
[Servo Drive] /PULS     < to > [UMI-7774/Axis1/Control Connector] Digital Ground
[Servo Drive] SIGN       < to > [UMI-7774/Axis1/Control Connector] Dir (CCW)
[Servo Drive] /SIGN      < to > [UMI-7774/Axis1/Control Connector] Digital Ground
And for the feedback connector :
[Servo Drive] PAO      < to > [UMI-7774/Axis1/Control Connector] Encoder Phase A
[Servo Drive] /PAO      < to > [UMI-7774/Axis1/Control Connector] Encoder Phase A-
[Servo Drive] PBO      < to > [UMI-7774/Axis1/Control Connector] Encoder Phase B
[Servo Drive] /PBO      < to > [UMI-7774/Axis1/Control Connector] Encoder Phase B-
[Servo Drive] PCO      < to > [UMI-7774/Axis1/Control Connector] Encoder Index
[Servo Drive] /PCO      < to > [UMI-7774/Axis1/Control Connector] Encoder Index-
thanks for your reply , i appreciate your help
since i'm alone in this, unfortunately i cant get help on this issue from anyone.
Please verify that what i write here is correct.
Regards,
Moti

Motion control: PXI 7350 controller and UMI 7774 to interface with third-party driver UDK5114NW2

Dear community,
This is about Motion control in Labview: I try to control a step motor by using a PXI 7350 controller and UMI 7774 to interface with third-party driver UDK5114NW2. The problem is 5 Disable LEDS on UMI 7774 board always lit even when I check "enable" on "Motion I/O setting" in configuration of PXI 7350 motion controller. Furthermore, when I start to control step motor, it is not working and I found disable LED on UMI board still lit. I don't know how to solve this problem. Can someone help me to figure out? Thank you in advance!
Hau Nguyen.

Dear Community,
I said wrong, 4 disable LEDS on UMI 7774 Board instead of 5 as my previous post. Why nobody help me to solve this problem. I can not turn off disable LEDs on UMI 7774 Board so I can not start the strp motor. Please help me!
Hau Nguyen.

Umi 7774 required for ni drives?

i am designing a motion control system using 3 stepper motors (ni Nema 23) and correspondingly 3 ni P70360 drives. Is a umi 7774 required to connect these to the 4 axes pci motion controller card? (i'm confused as its description on the ni site says that it is required for 3rd party drives BUT in the discussions i've read a lot of people have used umi 7774 with ni drives )
Solved!
Go to Solution.

Hello aks,
Yes, you will need to purchase and use our Universal Motion Interface (UMI) 7774 board in order to connect the three drives/motors to the motion controller card.
It may have been confusing because we do explicitly say that it is required for 3rd party drives, but not necessarily required for our drives. Having said that, the vast majority of customers use the UMI board because it eliminates the need for custom cables, and makes it far easier to connect to more than one axis.
Here are some links that may provide more detail and could prove to be helpful.
[1] NI Stepper Motion System Selection Guide
[2] Cabling for a Motion System with a Danaher Drive Explained
Huntington W
National Instruments
Applications Engineer
***Don't forget to give Kudos and Accepted as Solution where it is deserved***

Connecting UMI-7774 to KEB Motor Drive

Hi,
* i post this message in the Motion Control and Motor Drives board but i cant see any activity on that board, i'll apriciate any help from you here *
I'm having problems to connect my Servo motor: KEB, With Combivert F5 Motor Drive.
I have the manual and all the pin assigment for this motor drive but i cant run my servo from MAX.
I'm using : LabView 8 + Max 8
NI Motion and Motion Assistant 1.3
I attach one pdf file with 2 pages, the pin assigment of my KEB Motor Drive (Model: Combivert F5)
This URL for the Model from KEB Website : http://www.keb.de/common/catalogues/C_vert_F5/0000000-91F5-07-03.pdf
the other page in my attached file is the umi 7774 AXIS 1 pin assigment.
I will appriciate any help if someone can help me and describe to me how i should
connect my umi 7774 FeedBack & Control pins to the pins of my KEB-CombivertF5 Motor Drive.
Thanks in advance.
Mor
Attachments:
Umi7774_3rdPartyMotorDrive2.pdf ‏228 KB

Mor,
I have replied to your posting in the Motion forum, which can be found through the link below...
http://forums.ni.com/ni/board/message?board.id=240&message.id=3325
Lorne Hengst
Application Engineer
National Instruments

Connecting UMI-7774 to KEB Motor Drive. file attached

Hi,
I'm having problems to connect my Servo motor: KEB, With Combivert F5 Motor Drive.
I have the manual and all the pin assigment for this motor drive but i cant run my servo from MAX.
I'm using : LabView 8 + Max 8
NI Motion and Motion Assistant 1.3
I attach one pdf file with 2 pages, the pin assigment of my KEB Motor Drive (Model: Combivert F5)
This URL for the Model from KEB Website : http://www.keb.de/common/catalogues/C_vert_F5/0000000-91F5-07-03.pdf
the other page in my attached file is the umi 7774 AXIS 1 pin assigment.
I will appriciate any help if someone can help me and describe to me how i should
connect my umi 7774 FeedBack & Control pins to the pins of my KEB-CombivertF5 Motor Drive.
Thanks in advanced.
Mor
Attachments:
Umi7774_3rdPartyMotorDrive.pdf ‏228 KB

Mor,
Ok. I had to download the manual for your device, but I think I can help you out.
1. Do you have the 9 pin D-Sub connector that provides the Auxilary Incremental Encoder, or do you have the 15 pin D-Sub connector for the sinusoidal commutation, or do you have both? I would recommend the Auxilary Incremental Encoder if possible. I need to know which one you have in order to help you completely setup your system.
2. You need to connect pin 3 of the drive to pin 1 of the Axis 1 Control connector on the UMI.
3. You need to connect pin 4 of the drive to pin 9 of the Axis 1 Control connector on the UMI.
4. You need to connect pin 4 of the drive to pin 8 of the drive.
5. You will need to change the settings on the drive so that it know you are in Torque mode instead of velocity mode (CP.10).
6. Depending on what you are going to use for feedback (Auxilary Incremental Encoder/Sinusoidal Commutation) you will need to hook the proper D-Sub connecter to the UMI, the instructions on how to do this can be found in the 735x user manual, which can be found through the link below...
http://www.ni.com/pdf/manuals/371060a.pdf
NOTE: I recommend you use the Auxilary Incremental Encoder if possible, it is easier to use and setup. If you do not have both the Auzilary Incremental Encoder and the Sinusoidal Commutation, then you will need to purchase it for your drive. Attached is an excerpt from the manual showing what I am talking about.
I hope this helps,
Lorne Hengst
Application Engineer
National Instruments
Attachments:
feedback.zip ‏20 KB

UMI-7774 5v power

What is the current rating of the UMI-7774 internal 5Vdc power supply? This is the power on pin 8 feedback connector. User manual doesn't specify rating. This is not the ISO power. This relates to page 3-18 of manual.
Thanks
Solved!
Go to Solution.

Hi,
From the following PDF: http://www.ni.com/pdf/manuals/373359c.pdf: "Provides 1 A maximum output current, shared between Control connector pin 3, Feedback connector pins 4 and 8, and Trigger/Breakpoint connector pin 3."
It is on page 30, table 8.
Thanks,
Jim

Connecting Yaskawa Sigma II Servo Drive (SGDH) to PCI-7344 and UMI-7774

Hi,
I have NI PCI-7344 and UMI-7774 and i want to
Connect the UMI-7774 to Yaskawa Sigma II Servo Drive (SGDH) , the servo motor drive is connected to the servo motor with original Yaskawa cables.
1.  do you know if National instruments provide special cables to connect the UMI-7774 to the Yaskawa Sigma II Servo Drive (SGDH) ?
     i know there is special cable to connect this servo drive to the NI PCI-7390
     http://zone.ni.com/devzone/cda/tut/p/id/5908
(you can find in this link that this cable exist: 50 Pin cable for connecting MCA-7790Y to Yaskawa Sigma II Servo Amplifier)
     but this is not the case here, i need to connect the Servo Drive to the UMI-7774..
2. Where can i find a tutorial on how to configure the PCI-7344 in MAX to send simple commands to the Servo Drive
      i.e. to run the servo motor from position A to position B (10,000 encoder pulses)
i'll be gratefull for any help
Regards
Moti

Hi MotiM,
We do not have a cable that will let you directly connect the UMI-7774 to a Yaskawa Drive. We do sell cables that will have the Dsub connector to match the UMI-7774 with pigtails to wire to the drive. If you take a look at the product page for the UMI-7774 you can see the different cables listed under the accessories.
To perform a simple move in Measurement and Automation (MAX) is very simple. In MAX under NI-Motion select your PCI-7344. Under this section select the settings option (by default it will be called Default 7340 settings). Select the Servo radio button. Initialize your controller. Then you can select Interactive and 1-D Interactive and command your motor from there. I have attached an image with the important areas highlighted for you.
Message Edited by Adam_H on 09-19-2008 03:41 PM
Adam H
National Instruments
Applications Engineer
Attachments:
MAX.jpg ‏93 KB

Connecting Yaskawa Sigma FSP Motor Drive With UMI-7774 and PCI-7344

Hi,
i have PCI-7344 and UMI-7774 that i want to connect to this Servo motor drive of Yaskawa.
1) How do i know if this motor drive is compatible with the pci-7344 and umi7774 ?
     for example: inside the UMI manual is written that the Motor drive must support "Sinusoidal Commutation"
     i look indside the Motor Drive manual and i dont found anything about this.
     this is link to the motor drive:
     http://www.yaskawa.com/site/products.nsf/products/Servo%20Amplifiers~fspsigma.html
     http://www.yaskawa.com/site/products.nsf/products/Servo%20Amplifiers~fspsigma.html?openDocument&seq=...
2) How do i connect the feedback and control lines from the UMI to the Motor drive?
i'll appreciate any help including posting a link to a tutorial that helps to understand the signals from the motor drive and the encoder
And also the umi-7344 (Phase A, Phase B, Hall sensor, inhibit, Fault, etc... )
Some powerpoint or Pdf tutorial that National instruments provide will help as well.
P.S. i read the manual of the UMI-7774 and the pci7344 manual, but i'm yet not understand what i need to do
in order to configure my motion system :
PCI-7344 , UMI-7774 , Motor Drive (Sigma FSP Yaskawa) , Servo Motor (Yaskawa)
Thanks for any help.
Regards,
Moti
Solved!
Go to Solution.

Dear Nate,
Thank you for repling to my posts, i really appreciate that.
The links you provide is very helpfull.
i'm enginner in my education, but not in this area (i'm information systems eng.)
i decided that i need to learn more about it (ni-imaq, ni-motion, line-scan camera, servo, servo drives, encoder signals, motion i/o, umi, pci7344, etc..)
So, i download the manual and help files that is needed to my application i want to build
(high speed machine vision of color line-scan camera connected to motion with rtsi synchronization and also digital i/o)
and now i'm reading ALL this, its huge amount to read, and not all the thing i understand in the begining (english is not my lang..)
Thanks again for the replies.
Best Regards,
Moti

Connecting Parker Compax3 servo drive to umi-7774, and PCI-7340

Im very new to NI motion control products, and was wondering if anyone knew of the specific details for connecting a Parker Compax3 servo drive to the UMI-7774 and motion controller PCI-7340. Any connection diagrams and software set-up would be very helpful
Thanks,
Scott

Hey Scott,
I don't have any specific documentation for the Parker Compax3. The best I can do is give you links to the manuals for your hardware.
UMI-7774
PCI-7340
Parker Compax3
The pinout specifications for each device are there in the manuals, it should just be a matter of matching them up. If you have some more specific questions about getting them set up, I'd be happy to provide any assistance that I can. Have a great evening!
John B.
Embedded Networks R&D
National Instruments
Certified LabVIEW Developer

Umi-7774 power is not working ( request help urgently)

I have a umi-7774 and a pci-7340 controller, and they were working well, but suddenly when i try to turn on the umi-7774 again, the isolation power led was illuminated but the power led itself didn't illuminate, it only illuminate at the first contact of power supply, so i hope you can help me solve this problem as soon as possible.

Thank you for your reply, even it is late but anyway thank you, the problem was in my battery that supply power to UMI, since i go to the supplier office here, and the engineer there powers the UMI by a power supply with him, and the umi works properely, but what confuse me that when i measure the voltage out from my battery the voltage was 24V, and the current also was high, so i donnot know what is the problen with my battery
your sincerely,
ni-motion

Do I need to enable something in MAX to turn on Iso Power for the outputs of a UMI?

Hello
I've been trying to set up a UMI-7772 to control some servo drives. I have V, C, Viso and Ciso inputs connected to a 24V power supply. When turned on, both the V and Viso lights turn on green. However, I cannot measure any voltage difference between the Iso Power and Iso Common pins on the Dsub outputs. Is there something in MAX I need to enable to get the UMI to turn on?
Thanks
Mike

Hi Mike,
there is no switching circuitry on the UMI, that could disable the Iso Power outputs and there is nothing you need to configure in MAX. If you can't measure a voltage between Iso Power and Iso Common pins on the Dsub outputs, the UMI might be defective (e. g. blown fuse). Please contact your local NI branch for repair options.
Thanks and kind regards,
Jochen

Why is the A/D channel of my UMI-7774 noisy?

I am using a UMI-7774 mated to a PXI-7350 motion controller in a PXI-1002 chassis. I am testing A/D Read to the UMI with a short jumper between AI signal and AI ground pins on the Analog Input port. The result of A/D Read of this short-circuit is a DC bias offset of approximately 50 and spikes of 50-200 (see attached). I would like to know:
1) What is the unit of the A/D Read? For a channel I specified as +5V/-5V, I get readings of +30000/-30000 for inputs of +4V/-4V.
2) What is the source of DC bias and noise in the channel, and what are some techniques for compensation? Remember, I have jumped out this channel just to look at the noise in the UMI/controller. The only controls I see on this channel are en
able/disable and a choice of fixed ranges.
I want to use the A/D Read function to read a conditioned LVDT signal, then use the value to command a servomotor, but now the signal is too noisy. I would like to avoid extensive averaging, as this is a real-time application (and the spikes have too great an effect even on the average). The LVDT signal after conditioning (3rd-party hardware) appears clean in comparison.
Thanks.
Laine
Attachments:
A2D_Loopback.JPG ‏69 KB

Hello!
What is the unit of the A/D Read? For a channel I specified as +5V/-5V, I get readings of +30000/-30000 for inputs of +4V/-4V.
The A/D outputs the 'bit level of the A/D converter,' or what we would call raw data. The A/D is a 16 bit converter, so it has a range of 32767 to -32768. Depending on what voltage range you have selected, these values correspond to different voltages. For example => +5V corresponds to 32767, and -5V corresponds to -32768.
What is the source of DC bias and noise in the channel, and what are some techniques for compensation? Remember, I have jumped out this channel just to look at the noise in the UMI/controller. The only controls I see on this channel are enable/disable and a choice of fixed ranges.
The mot
ion controller A/Ds are not specifically designed for Data Acquisition, so they can have some behavior like this. The source of the noise is likely just system noise, etc., as the ground plane is shared among other signals. The best that you will be able to do is to do some DC offset calibration in software, and to over-sample and average your readings to reduce the noise.
I hope this helps!
Regards,
Colin C.
Applications Engineering
Colin Christofferson
Community Web Marketing
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Using the ENABLE output of the UMI-7774

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