Search the Community
Showing results for tags 'position control'.
Found 115 results
-
hi I want to change a position of a servo (MR-J3-350T) which displays as current value 9500 to zero. how I can do it with MR-Configurator. in which menu should I go? thanks
-
Hi, I have a Mitsubishi Servo motor with its amplifier MR-J3-350T. I lose the home position. How can I set the value of the position to zero if I detect a home detector. I use gx developer. thank you
-
Hello i have problem about connection between QD75M4 AND MR-J2S-40B now MR-j2S is display "Ab" every time i can't solve this problem
-
Hello Everyone. We have Schneider TM241 PLC Along with Citect SCADA System at 100MWp Solar Power Plant to monitor and control various equipments like Inverters, Switch-Yard, MFMs, Weather Monitoring Systems etc... Government Authority here asked every solar plant to control the generation as per the instructions by Load Dispatch Center, for that we need to implement logic to control Generation as per requirement. For that we are controlling generation from inverters by giving them generation setpoints calculated by PLC using PID function. But we are facing one problem while using PID. (FB_PID of Toolbox Library) Suppose we need to generate only 60MW out of 100MW. So we set PID setpoint to 60MW and according to that we get PID output and according to that PID output value we provide generation setpoint to every inverters. This system works very fine until the clouds comes into the picture. Now suppose Setpoint of PID is 60MW and PV is also near about 60MW, and suddenly large cloud comes over plant and block solar radiation. In this case generation comes down to 10MWp(or any value below 60MW), So output of PID will Increase and keep increasing and settle at the Maximum value. but without solar radiation generation value stays very down then Setpoint. Now suddenly Cloud moves and again solar radiation increase, but the PID output is maximum at that time so, Suddenly Generation goes from 10MW to near about maximum capacity (100MW) instead of 60MW, and then it will slowly comes down to 60MW. We need to rectify this generation shoot up when cloud moves. Anyone have idea how can we solve this problem or anyone have programmed PID in this kind of situation. Is there any function block available to do this correctly like function block of PID with two Reference or something like that... We are using TM241 which is CoDeSys based PLC.
-
Hello everyone, I have a Kinetix 6000 CIP drive (unwind) and I need to control its speed by a PID controller. I have everything working except the MCD instruction doesn't pick up on the PID output value change. It changes the JOG speed, which I use to control the unwind, if I set the speed manually, which is slow. The PID changes the speed almost continuously. Any suggestions are welcome. This is how I'm attempting to control the speed: A1_r_JogSpeed = PID output value Thank you
-
So I'm having trouble writing a FBD within my current program for a slitting line. I need to keep a constant tension on my web as it is being recoiled onto our recoiler. I wrote a simple program using a sensor to read the growing rate of the coil to get a radius and I have feedback on my torque on the recoiler motor. The simplest math for this application without getting into anything too fancy should be Tension(lbs)= Torque(ftlbs)/coil radius. only problem is when its less than a foot then my calculation is thrown off and it actually shows tension goes up until it reaches the one foot mark then it seems to scale correctly. Do I need to scale something else? Any help on this would be appreciated.
-
Hello Guys, can anyone help me programming of FX5-4LC temperature control module with FX-5U80MT PLC. I want to Read present temperature value of each channel and want to set Temperature Set value from PLC.
-
Hi Every one, I have two 2198-P070 bus power supplies for that I’m using for four Kinetix drives, 2 drives per power supply, all controlled by one processor (5069-L350ERMS2). I have an enable contactor setup for each power supply for each set of drives. I have them configured as DC bus groups 1 and 2 respectively. I had the first set of drives working, setup inside the motion group, with no issues. When I added the second power supply and drives. I found that when I added them to the motion group I couldn’t get the enable contactor to close for the first set of drives. I f I took them out of the motion group and made them ungrouped then the first contactor would close but then I couldn’t get the contactor on the second set to close. Do you have any thoughts as to what I might be missing to get these to work? See the screen shots for more detail. Let me know what you think. Also, I have heard that only one motion group is allowed per PLC, but my question is : Can I use sevral axes and Power units in the same motion group?
-
Getting this error while adding MC_TorqueControl. I want to control torque from HMI value. Using R88D-1SN08H-ECT drive and R88M-1M75030T-S2 Ac servo motor with NX1P2 PLC. Newbie Here. Please support. Error 1 The Axis parameter of the MC_TorqueControl instruction does not support single-axis position control axes. Program1 Section0 Row 6
-
Is it possible to view the values / states of all inputs, outputs and workbits (e.g. 64.00 through 64.15 on Omron CQM1 PLC) on a single screen or control panel within CX-Programmer software? I'm trying to troubleshoot some ladder logic that I wrote and need to know the values of 5 or 6 inputs/outputs/workbits simultaneously. Having to scroll up and down through my ladder logic repeatedly does not work well with code that changes state every 5-10 seconds or so. Any help is welcome.
-
Hello We have just purchased some equipment with a Control Logix 5561 (1756-L61/B Rev 13.40). The compact flash card is missing from the unit but the seller says the unit was running in his facility prior to shipping. Does the 5561 have internal memory where a program is stored? Is the Compact Flash used only for recipes and persistent data? Thank you
-
Hi everyone, I trying to develop a logic to control 6 motors. Two motors needs to working and four motor will be in stand by. When one of the two motors fail, one of the four motors will start to work. Another rule is, when one of the motors that is working reach the preset time of working, the controller will stop that motor and start another motor with low working time, and so on. I'm have difficult to solve this problem. Can someone help me, please? Best, R.
-
Gentlemen and Ladies, This post might come off as generally lazy but this is purely in the interest of saving time. Our company has been building control panels for quite some time. I have been doing the design for about 10 years or so. We typically build Allen Bradley type control panels. Our main customers are water/wastewater so they are typically Compactlogix with basic IO. (AI, AO, DI, DO) modules. Recently i've been using the IO Wiring System modules. These save an incredible amount of time. However, they are quite big and require a decent amount of space. Our smallest control panel size is usually 36x36 and that is pretty tight. My question to all is, does anyone have a set of control panel drawings for an Allen Bradley compact logix system without these wiring modules? I am looking to create a smaller control panel, and I just haven't had much time lately to sit down and do the design. This is indeed a shortcut, but time has been limited on my end as of late. I apologize if this is out of line. Thank you,
-
can anybody Know how to control stepper motor using PLC
-
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
-
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!
-
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.
-
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.
-
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 -
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.
-
Haiwell Cloud BOX launched (Cloud HMI)
Haiwell posted a topic in For Sale, Employment, Services or Wanted
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 -
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.
-
Hello, My apologies in advance if this is in the wrong place. I am working on a press that is using a 1746-INT4 to look at the position of the ram. The press is using an LDT as the sensor reading back to the INT4. It obviously works. The press runs everyday. I'm wondering if there would be a reason to use this instead of just a voltage or current analog card? Thank you in advance for the replies.
-
Water Level Control in Closed Loop Systems | ABB ACQ580
mychar276 posted a topic in Automation Direct
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. -
using ZP.PSTRT1 for speed control and speed change control during operation in QD77MS2
diraemon posted a topic in Mitsubishi
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?
