ElectronGuru

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  1. What's with my font???

    I agree with Bob. Try the default display update rate of 1 second and work from there. You should be able to test the responses from your laptop using the Test Application mode, prior to creating and downloading a new .mer to the PanelView.
  2. Hi Everyone, I've had V32 installed for at least a year but haven't had much need for it until this month. I installed a new activation on Friday that I thought crashed V32, which was weird because all the other Studio versions were working. Any time I tried to open an existing project or even create a new one, I would get an "access violation was generated" fatal error. I reached out to a colleague who found a tech note on the problem. Turns out the activation had nothing to do with the crash but rather, turning on the bookmark tool bar caused it. If you have the bookmarks toolbar turned on in version 32  the Windows desktop needs to be set at 100% magnification, not 125% which is the Windows default. Right clicking on the desktop, picking display settings and changing the scale and layout to 100%, then rebooting the computer fixed it. But now all the Windows icons are really small. I've been spending most of my time in V21 through V28 until recently. Since we're all likely going to be seeing more V32 in the near future, I'd thought I'd pass this on.  
  3. PowerFlex fault history

    Also, if you have Connected Components Workbench (CCW) (which is a free download from Rockwell) you can go online directly with the drive and read the fault codes from there.
  4. PowerFlex fault history

    The PF525 holds up to ten faults, with the three most recent grouped together. Joe E gives a great example on how to read the faults from Logix, but you can also read them directly from the front of the drive.  Use the touch pad keys to navigate to the "F" parameters. The value found in F604 would be the fourth alarm code that occurred. The value is found in F606 would be the sixth alarm code that occurred. The fault descriptions start on page 15 of the manual, here: https://literature.rockwellautomation.com/idc/groups/literature/documents/um/520-um001_-en-e.pdf
  5. Kinetix 5500 and motor setup

    Joe E, thanks for adding the clarification.
  6. Kinetix 5500 and motor setup

    Any time a 3-phase drive is running on single phase power, you will use only two of the three line power (L*) terminal blocks. The most common configuration is to use L1 and L3 as the line power to the drive, leaving L2 empty. Do not use the neutral from your single phase power supply. The drive will still produce a three phase output but it will be de-rated, typically to 1/3 of the name plate horsepower on the drive. So a ten HP drive would only be able to run a three HP motor when the drive is supplied with single phase power. Perhaps someone else can help with your application question.
  7. 1747-NI8 Open Circuit

    PLCMentor, I've worked with many AB products that give various *loss of signal* alarms when the signal is merely out of range. For instance, the PowerFlex 750 series VFDs will throw a loss of analog input fault if the input drops below 1 volt. Even though the literature says the drive is rated for 0 - 10v, anything below 1 is an automatic fault. Verified. Many times, lol. The OP states he gets an open circuit fault only when the input signal drops below 4ma, only on three channels, (granted, he didn't say how many channels are actually in use), and that he does have at least 3.96ma (which is not an open circuit). So at that level of input signal the card would, in fact, be detecting load. Yes, I am extrapolating from previous experience but I don't think it's unreasonable to assume that it's possible the card is interpreting the drop below 4ma to be an open circuit. The OP asked the question, "Is there a way to adjust this tolerance??". Assuming I have the correct manual, the answer to that question is no, you can't change the tolerance, per se. The manual states that when in 4-20ma mode it's automatically checking for open circuit and unfortunately, it doesn't define for us what constitutes an open circuit. While 3.96ma is definitely a load, we're still seeing the open circuit fault at that input level. The only way to know for sure whether less than 4ma is an "open circuit" is to test this by using your suggestion of reconfiguring the card. You also suggested looking at the logic. The OP stated that when the input(s) go below 4ma, "...boom, the machine goes down". He didn't state it specifically, but it sounds a lot like he's describing a major recoverable fault in the controller. While I don't think an I/O fault bit would be used in logic to trigger a controller-level fault, the input card fault bit going true would be able to fault the controller. In other words, we can troubleshoot this with configuration settings, but I doubt it's code related. This assumes that the power quality issue is the only thing recently worked on and that someone hasn't been monkeying around with other things in the controller. (SOOO many assumptions, lol). According to the OP, the devices worked for many years, then began giving faults after the system was worked on. Chances are, something was damaged when the work was being done. While I think my previously posted recommendations are solid, you may have cut to the chase a bit quicker by suggesting reconfiguring the card. If a wire was pinched during a repair and now the signal is dropping below the configured threshold, that would definitely throw a fault. Changing the config to a value below that threshold would prove this out and get us closer to solving the problem. muurbuk2, page 5-2 of the manual shows that changing bits 0, 1, & 2 in the configuration word from 101 to 100 will change the input config from 4-20ma to 0-20ma. This has to be done on each affected input channel. As PLCMentor suggests, this may be a less invasive (and possibly quicker) way of narrowing down the problem. Ultimately, something changed and your previously working system is now faulting out. Reconfiguring the I/O channels is a method of troubleshooting, and therefore probably not a permanent fix. The bad part(s), whether the card, wiring, or instrument(s), will eventually need to be found and replaced.  
  8. 1747-NI8 Open Circuit

    https://literature.rockwellautomation.com/idc/groups/literature/documents/um/1746-um020_-en-p.pdf If this is the correct module, according to the troubleshooting section, the open circuit detection is not configurable. If it goes below 4ma, you get the error and there does not appear to be a way to adjust that tolerance. Try wiring a signal generator or replacement sensor directly to the input module, and run the input up and down the 4-20 range and check module response. If all is well, do the same at the instrument end of the wires. If your test tool or replacement instrument works at the controller but drops below 4ma when wired at the sensor end, you likely have a wiring issue. Otherwise, your sensors may be bad. It's not normally the case for multiple sensors to fail simultaneously, but the fact that you've had recent power quality issues raises an eyebrow towards your wiring and/or field devices. Hope this helps.
  9. 1756-OA16 I.FuseBlown bits

    Bob is correct in his response. For the blown fuse bits to actually work, the card must have that capability, which would be specified in the catalog number. If an output card has electronic fusing, the catalog number would end in an "E", such as 1756-OA16E. Otherwise, with or without the word of data in the profile, there is no physical means within the card to actuate that function.
  10. Rockwell Software Subscription or Purchase?

    To my way of thinking, it really depends on the variety of equipment you have and how much time you spend tweaking and updating your processes. A customer I have in California (a very large utility company you may have heard of) recently told me their annual subscription costs about as much as a single, one-time purchase. However, they are constantly reviewing and testing ControlLogix code improvements, adding or changing FactoryTalk displays, adding and removing users, etc. For an organization that large and busy it makes good sense to have a subscription. But for a smaller company with reliably stable control systems that don't need a lot of attention, the subscription fees might not be worth it. Not to mention, different licenses and subscriptions have different options and price tags. In this regard, it can be a lot like buying a new car. You can get a particular package, or customize it (to some degree) to your liking. So the actual prices can be all over the place. You should contact your local distributor, get some solid price quotes, then do a cost-benefit analysis. 
  11. How do I find out if a poweflex vfd LP or HP?

    Try right-clicking on the node in RSLinx and going to properties. Don't recall ever seeing that info there, but worth a shot. Other than that, I'm not sure. Looked and didn't see anything in the catalog number. That said, typically Flash won't let you download the wrong firmware. Assuming LP and HP are don't share compatible firmware, try downloading one, then the other. If they both flash, you're back to square one with no harm done. If one flashes and the other doesn't, problem solved. Sorry that I don't have a better answer. 
  12. Powerflex 70 Speed Command

    To get the drive to respond to Logix speed reference commands, I believe you only have to change parameter 90 to the DPI port that your 20-COM card is parked in. But Bob makes a good point; if the motor name plate data is not properly entered into the appropriate parameters, the motor and drive will not respond correctly to each other. Having the current limit set to 1 amp on a 10 amp motor would definitely keep you from reaching higher speeds. Make sure your acceleration ramp rate isn't set to a bazillion seconds. These little "gotchas" can be a real pain on a new setup. If all of the name motor plate and running characteristics are programmed properly, dig a little deeper: When the drive is running and the motor appears to have accelerated to the steady-state speed for any given input from Logix, check parameters 209 & 210. It's a good idea to find out what the drive "thinks" it's actually doing, compared to what you want it to do. For instance, in parameter 209, if bit 8 is true, then the drive thinks it's at the desired speed.
  13. Software for PanelView Plus 600

    You need FactoryTalk ME (Machine Edition) for the PanelView 600. You will not need to buy RS500 for the PLC, and you will not have to license the PanelViews individually. Once you have FT ME, you will use its "Transfer Utility" to upload from the existing HMI, and then download to the new HMI. (I don't think Transfer Utility is available to be purchased as stand-alone application). When you say the current HMI is "non responsive", is it just the touch screen that is worn out? If so and the processor is OK, you shouldn't have any trouble recovering the existing project from the PanelView. FactoryTalk is a pretty expensive programming tool to purchase for a one-time use, and then to use it only to move a project from one HMI to another. You might considering installing more PanelView 600 and 700s to get more out of the investment. You might also look into the less expensive PanelView 800s, for which the programming tool (Connected Components Workbench) is free. Free software is usually not as user friendly as it could be and though I haven't used the graphics tools in CCW, the Logix editor is not as intuitive as it is other Allen Bradley products. But the CCW PowerFlex drives tool is really easy to use, and free is a powerful word.  Hope this helps.
  14. MDS instruction would not complete

    The MDS .EN bit goes true when the input conditions on the rung go from false to true. The .EN bit will stay true so long as the rung is true regardless of the condition of the .DN bit. The .DN bit is set when the drive has been successfully enabled. If the .DN bit is not going true, the MDS instruction is probably not seeing that the servo has been enabled. Does the drive start after the MDS goes true and then stop? Is this a new installation?
  15. Is there a method to index and array of a UDT?

    In the errors window, what does Studio say the error is?