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  1. GX Works 3 - PID control

    Hi, I am using PID function (PID operation instruction) from GX Works 3 library but it doesn't work. I set all necessary parameters (sampling time, direction and upper/lower limit values + KP, TI). My input PID_Par is array of 25 points (in manual is written: "*1When auto tuning is not used, the same number of points are occupied as when the step response method is used."). For example, in GX Works 2, PID function works ok. Did someone have similar problem? Does someone have mitsubishi library (GW Works 3) with PID function that works correctly?   Regards Luka  
  2. Hello,I am sizing a feeder circuit for a panel according to UL 508A and came into a question:My input current is of 76.5 A (considering all the loads), thus, it is fine for me to use a cable of 4 AWG (max. 85A @ 75 c).For the circuit breaker I did 76.5 A x 1.25 = 96 A and then I selected a breaker of 100A.My question is: Is it ok for me to keep this configuration according to UL 508A? 100A breaker + 4 AWG load side cableOr do I need to level up the cables?Thank you very much in advance!
  3. Mitsubishi FX2N, Servo Output problem

    Hello guys, I am facing a problem that our Servo is generating output for only reverse direction, when we give forward command from HMI the output Y0 is active but when we give reverse command same outut Y0 is high, other output which is Y4 is not high, what could be te possible reasion.
  4. Mitsubishi FX2N, Servo Output problem

    Hello guys, I am facing a problem that our Servo is generating output for only reverse direction, when we give forward command from HMI the output Y0 is active but when we give reverse command same outut Y0 is high, other output which is Y4 is not high, what could be te possible reasion.
  5. Hi all. I have a Kinetix 350 and an AB TLY servo motor. I'm using the drive's STO function. AC power is supplied into the drive, passing through an "M1" contactor. It makes sense to m e to keep that contactor open, preventing AC power to the drive, until the drive is fully awake.  Is that what you guys do? Someone suggested to me in another forum ( http://www.plctalk.net/qanda/showthread.php?t=121021&highlight=drive+awake ) that there is no reason not to supply power to the drive right away because the STO function is inhibiting power to the motor anyway. 
  6. Hi All, I have an AB servo TLY-A110T and 2097-V31PR0-LM Kinetix 350 drive. I thought that it was fully configured and ready for tuning, but when I issue a MSO it immediately starts to spin the shaft (no load yet). This lasts about a second until a Physical Axis Fault, Excessive Velocity Error occurs. I've double and triple checked the feedback and power wiring, and everything looks right. Is there anything else I can check? What can I do to trouble shoot this if I can't even give an MSO? Any insight is greatly appreciated.
  7. There have been many good discussions on the applicability of cloud-based solutions for manufacturing and process control systems. On one side, some people have concerns regarding security and control of the information, on the other side, there are identified benefits enabled by cloud systems. From VMS minicomputers to DOS and Windows, from ArcNet to Ethernet, it is inevitable the industrial automation systems shall adopt the technologies that are getting predominant in IT general use; the current environment that I am calling the “Cloud-iPad era” is no different; therefore the practical discussion is not if those new technologies will be applied in the industrial environment, but how. This paper is not intended to join the conceptual discussion about the cloud, but just to present a few simple practical examples, where cloud technologies are already enhancing industrial automation solutions and enabling new business opportunities. CloudPracticalApplications.pdf
  8. Bonjour, Hello, I use a l33erm automaton and a Kinetix servo motor . This servo motor drives an engine with a chain moving in steps of 100 millimetres (there are 15 steps on the chain ) At each top of a cell this motor advances by 100 millimetre. in reality it advances from about 0 to about 100. Sometimes it is 100,002 times to 99,997 (this is important further) and when I give it a top it goes back to about 100 (100,003 times to 99,996) And so on and so forth up to no problem, I use a MAM with an absolute type of movement. It works.     However, this does not work any more after a rearmament following an emergency shutdown. if it is a 100,002 no problem at the next top the chain advances one step But when the engine is shut down at 99,997 and I give it the order to go to 100 it advances only by 0,003.  This only happens after an emergency stop (or door opening). Thank you for the help you can give me excuse my English this is a machine translation Un séjour sans faille
  9. Flexible Sequence Control

    Hi everyone, I need an idea to make my program flexible. For example i have 3 functions; FC A, FC B and FC C. Before this the sequence of my program is A then B and lastly C. Now i want it to be flexible which I can choose the sequence first before starting the process. Please help me.  
  10. Cloud computing is a core component of the industrial Internet, and enabling devices to implement cloud management is an inevitable trend in the development of modern industry.   Haiwell Cloud BOX is a powerful and low-cost "Haiwell Cloud HMI without screen" created by Haiwell company after a lot of market research and engineering tests, which combines Haiwell engineers' excellent experience in Internet innovation technology and responds to the market demand of industry 4.0.     What is the cloud box? What powerful features does it have? ●  Built-in Haiwell cloud engine, integrated Haiwell cloud service, support cloud/mobile access control ●  Integrated HMI function, which can directly monitor the display screen through the mobile phone/PC instead of the HMI screen. The control is flexible and convenient. ●  Support A/B Key security mechanism, multi-unit network, database, multi-screen interaction, cloud camera remote monitoring,etc. ●  Support Haiwell Could SCADA cloud configuration software ●  Two Ethernet interfaces support star, tree, and bus Ethernet networking ●  Support MQTT protocol, support access to database server, easily realize data collection and reporting, connect to ERP/MES and other systems.         Haiwell Cloud BOX is a small, versatile and cost-effective " Cloud HMI without screen". Next, we will introduce how Haiwell Cloud BOX realize the Industry 4.0 Smart Factory solution. The above picture shows the device distributed in Beijing, Shanghai, Xiamen, New York and other places around the world. The remote monitoring of mobile APP and cloud website can be easily realized through Haiwell cloud platform, and remote PLC, HMI, CBOX and IPC projects can be upload and download remotely. The device supports the cloud alarm function, which can receive the alarm push information at the first time of the mobile APP or website if the field device has an alarm message,support cloud map, device location distribution can be viewed directly.   Smart Factory focuses on data integration in different places and realize unified monitoring and management. All cloud devices of Haiwell support MQTT protocol, and transmits it to the MQTT server via the Internet. The remote center database stores the sent data for ERP and MES system calls.   Smart factories value centralized monitoring and display. Haiwell cloud camera can easily realize remote monitoring of video; large screen controller TVBox can realize single screen and multi-screen in one display, and then display the screen and video monitoring of various places on the big screen through the Haiwell cloud platform to realize large screen electronic board function.   Smart factory focus on the secondary development of data variables in different places . Haiwell cloud configuration software can flexibly call variable data of devices in different places through the cloud platform to conduct secondary development configuration, making network monitoring more convenient for engineers.   The above is the introduction of Haiwell Smart Factory solutions, please look forward to more solutions of Haiwell industry 4.0 and intelligent manufacturing !   For more details, please refer to our company webstie:  http://en.haiwell.com/news/722-en.html My Wechat/ Whatsapp:  0086 15880530763  
  11. Weight Scale

    Hello - Not sure if this is the right place, I apologize if not. Just let me know if I need to move it and can delete and do so. But I am currently working on a project where I am collecting seeds (flower seeds, etc.) and when a certain weight limit is met I'll be turning off a vibratory bowl and opening a chute, etc. Looking for some ideas on the scale and how to do that process in particular. The smallest collection weight will be around 100mg, largest around 8g.  Mainly looking for ideas on the scale.  Thanks for any help/tips, much appreciate.
  12. Hello Everyone, We made a video about the simple explanation of the settings of the abb acq580 driver in the stage of water level control in multi-motor dirty and clean water cycle systems using the automatic commissioning feature of the ABB ACQ580 driver. Your comments and feedbacks are very important for us.  Video: Youtube            https://www.youtube.com/watch?v=JANGnykYYyw (For those who can't see the link) The video in our language(Turkish) but we put english subtitles. If you got any question, feel free to ask.  Thank you.
  13. hallo everyone ...i use mitsubishi Q00UJCPU and QD77MS2.. i try to make a speed control program and the speed wants to be changed during servo operating, i use dedicated instructions ZP. PSTRT1 (axis 1) and have tryed but it was only successful to change speed with "change speed control" function once ... is it like it? cannot change "change speed control" many times when servo operations?
  14. Good Evening, wanted to introduce myself. I've been in the Electrical, Instrumentation and Controls field for 25 years. I'm looking for opportunities to build control panels, any info will help.
  15. Is there a way to monitor the Temperature of a Servo Motor on Allen Bradley Servo motors... MPL? PLC: CompactLogix 1769-L30ERM Drive: Kinetix 6500   Motors: MPL-B310P-MJ72AA, and  MPL-B560F-MJ72AA I would like to be able to monitor the temperature, and flash a warning screen on the HMI if the Motor gets too hot, or perhaps shut down the operation before the Motor overload trips. The drive and PLC are connected through Ethernet IP What I don’t know is if that Motor heatsink temperature information is available to the PLC.
  16. Hello - I've recently started my adventure into PLC programming and I've found this site to be very helpful. I took on a project that requires control of a cylinder - the short and skinny is that the cylinder will have to provide position feedback and stroke to various set lengths determined by position of a selector switch. So - If position 1 is selected, the cylinder will stroke 20"inches. If Position 2 is selected, cylinder will stroke to 25"inches - so on and so on.   My questions is how to best go about this process. I may be having a brain-block and not viewing this clearly, but something is not clicking for me and wanted some advice. Planned on using Allen-Bradley's Micro850 PLC (had one on the shelf, and CCW software is free so why not). Thanks
  17. Dear Friends, I am doing a pick and place project using stepper motor.programmed movement by PLS2 command and motion are running fine.I want to program origin for the stepper axis.Please help. i don't know how to origin with a home sensor input.I am using CP1E PLC and stepper driver DM860.
  18.  Hi all. I have a question about how to set up the motor in rotary mode. My application will be a basic rotary table driven by a servo motor without gearbox between. So, in my servo drive axis settings, I select the motor as a rotary mode. then I defined the maximum position setting value for 360 degrees, and minimum to 0. So far so good. But the problem comes when I want to make an absolute move using the mc_moveAbsolute to move 360 degrees. Whit this settings the error "target position settings out of range " will come up. So, what is the solution to rotate 360 degrees without generating this error? if I set up the maximum value to 361 degrees and then if I rotate 360 the error will not occur and the motor will rotate 360 degrees as I aspected, but it's this correct ? or there is another way to do it? Thanks  
  19. Average motor speed

    Hi Guys!   There is a task. I have a motor, and I can monitoring the actual speed. The question is how can I to determine the average speed, if I know just the actual speed. If the speed is zero, it must be ignored. So I have to measure when the motor moves. Anybody have any idea? How can I solve this problem. RSLogix 5000.  Thank you.  
  20. Hello Everyone I have a problem to connect FX5U with Inverter Mitsubishi D700. ( no  respond from inverter) . I did read and following the manual. Could any one can help me?
  21. I am using NB Designer for last one year without problems. But from last week i am getting new error Background PLC control recorder 0 error! while compiling and not able to update the HMI. Please help.
  22. Hello, I am quite a newbie in PLC programming. I am trying to add a PID control function into a ladder program of FX3U PLC that was made by the person before me who used GX developer. I have read the manual, but still not sure if I understand it correctly or not. Please help me with questions below: 1. For parameters [S3]+1, how do I set the bit value? My understanding is that I need to align the bits I want, and then convert to Decimal number to set it, is this correct? i.e. If I need bit to be 0100001, do I set the parameter to 33? 2. How do I know if I am doing backward or forward operation? I think what I am doing is feedback control loop, does this mean it is a backward operation? 3. If I set auto tuning bit (parameter [S3]+1 bit#4) to 1, will this make the the program to run auto tune everytime I start the PID? 4. For parameter [S3]+22, [S3]+23 and [S3]+24, the manual said it will be occupied. Does this mean it will be preset by the program which I shouldn't mess with them? But how do I set the output upper and lower limit in [S3]+22 and [S3]+23? Also, I couldn't find any example of PID parameter setting in the manual. Not sure if I missed any important section in the manual. So please point out to me if there is any example. I also attached the manual on the PID page just for a quick reference. Thank you in advance for the help. FX3U Programming PID.pdf
  23. MNET to OMNI

    Good morning all, does anyone have any experience communicating to an OMNI Flow Computer through a MNET card, Im getting data back but it is not what i expected.  Should I be using Enron/Daniels? Byte Swapping? Thanks
  24. Hi,  I'm new to TwinCAT 2 and i'm upgrading a long time design (hence the TwinCAT 2 reference), to read a more sensitive torque signal.  I'm using a Beckhoff CX1030 as my PLC Controller.  I needed to add 'homing' to my motor sequence and confirmed with Maxon, im using the function blocks correctly and in the correct sequence to establish my 'absolute zero'/'home' position.  The motor has an output to write to:  ControlWord, which tells the motor that the position it is sitting in is '0.'  My program compiles, it runs, it writes each function block, but it's not seeming to get back to the test run opMode, even though i tell it to and the function block performs the 'Write' function.  it's stuck at zero and not reading an analog input signal from my torque sensor.  so im getting an artificial torque reading through every test.   i think this is related to my tare motion.  I start the program, home the motor, get into profile velocity mode, tare my sensor, enter profile position mode, go back to position 0, then back to profile velocity mode, run a test, sample data, go back to 'home' or '0.'  I wonder 1st, is my variable not linked properly through the system manager?  2nd, i set a boolean variable to set the 4th bit to 1 in my control word write (setting the 4th bit high will set my current position to absolute zero), but did i not connect the program to the main sequence properly?  looking to read a valid signal again and see that my motor moves back to 'home' each time.  Do i not need to home the motor after the tare, since the tare nulls out the torque value after the tare? after this i need to program my sample period, instead of it being fixed, as it is currently written and then use my home position as my trigger to start sampling.... Beckhoff applications department is overloaded, currently and can't help and this is all beyond the knowledge of the general support line.  I've gotten fairly far, on my own, but of course, the project is under a time crunch.   Does anyone know twincat well enough to help guide me?
  25. RS logix 5000 motion control

    Hi Guys! I have a problem with Motion axis move (MAM) command. There is an Allen bradley servo motor what is working well. But I need to add a new program section, wich is in  a specified moment, the axis should move a certain distance. I think I need to use the mam command, just I dont know how can I configure the motion control part. I need to make a new tag ? or what ? I need to use a user define ? PLS help me.