Jump to content

kikitron

Members
  • Content Count

    23
  • Joined

  • Last visited

Everything posted by kikitron

  1. I have fixed resistor on potentiometer like on Picture below. I calculate it 1082 Ohm to run from 4,07mA to 19,9mA on extension module IO-AI4-AO2 (analog input). I recorder MI values: 0 = 835 5= 1390 10 = 4075
  2. I tryed with different values of linearization on analog input but with no luck. I would like that when I have potentiometer in the middle on scale 5 analog output needs to be 0V. Now 0V is on scale 8. I have less rotation adjustment from 0V to 10V (scale 8 to 10). And I have more rotation adjustment from 0V to -10V (scale 8 to 0). Linearizarion is working ok only that 0V is not in the middle of the potentiometer.
  3. Another question about potentiometer. To regulate analog output +/- 10V Im useing potentiometer 4,7kOhm + resistor on analog input (4...20mA). Potentiometer scale is 0-10 (pic in attachment) and now I have problem that my 0V is on scale 8 and not 5. Is it possible to calibrate somehow that my 0V will be in the midle (scale 5) ? +/-10V is now working ok but my 0V is on scale 8 and I regulate 0..10V from scale 8...10 and 0V...-10V from scale 8-0.
  4. I have another question: Is it possible to reset somehow all my MB buttons to state 0 when I turn on the PLC ? Now If I push button I got 1 and if I switch off the PLC and switch it back on I still have 1. Now I would like to reset all my MBs somehow if I forgot to turn it down to 0.
  5. Perfect thanke you its working Is it possible to do it through the panel to if I add a button on display ?
  6. Hi, A have one question. I control analog output 0-10V with potentiometer on analog input 4-20mA. Is it possible to add a switch that I first set the value by potentiometer and when I press switch ON panel I get seted vaule on analog output ? Now is working directly when i move potentiometer a got value 0-10V on analog output. AI-O_test.vlp
  7. Now I wrote linearization with program and its working perfect Now I have second question: What happens if I use 2 or more analog inputs (sensors) and I can write linearizaion program only for the one. Because if I use for first sensor SI 80 - 85 to set the (x,y), what SI xx can I use for secon one or third ... ? Analog_input_test_4-20mA_ladder.U90
  8. Thanke you for your answers. Yes I used linearization only for display. #794 is perfect, so I just calculate pressure bettwen 205 and 1023, perfect But I didnt remember to write linearization with program and I will try to write it to.
  9. Hi to all, I have one question. I made simple program linearization for analog input 4-20mA to read pressure sensor 0-250bar. I can read pressure from display without a problem. Now I would like to add if pressure is 180bar or higher it has to activate digital output O 0. I add this function but its not working. Did I use wrong function? Analog_input_test_4-20mA.U90
  10. And final working program test_analog-out_KIki3.U90
  11. I wrote the program by your help of course and its working Only thing that I need to add extra is that if I let the Button_1, cylinder has to go back in home position automaticaly for safety reason. After that the program should be ok for testing in live. test_analog-out_KIki2.U90
  12. Here is my test program that its not finished yet, because I need to add function that cylinder automaticaly moves back to Home Switch when I release button. In my project I have proportional valve that needs +/-10V to drive it and I have 2 valves that has to work together. 1. When I press and hold Button_1 first it has to activate Valve_1 and after some time (timer T0) it has to activate Valve_2 and proportional valve on speed MI 0. (Cylinder is moveing when proportional valve is acivated). 1.1 This is written in the program in Part 1 and its working. 2. When cylider activates End Switch it has to move back automaticaly until he activates Home Switch: - Button_1 is not pressed - Valve_1 is activated - Delay activated Valve_2 and Proportional valve on speed MI 2 2.1 This I have to add in the program Part 2 :/ test_analog-out_KIki.U90
  13. Thanke you for the program @Joe Tauser. I Will test the program. I need in one direction to hold the two-hand control button (safety) and when cylinder reaches 1. end switch then cylinder automaticali returns back until he reache 2. end switch and he stops.
  14. Hi to all again. I have one question about ladder program that attached me @Flex727. I have only one button and two end switches. I have on hydraulic cylinder to move down manualy and up automaticaly. When I hold button I need setted output from MI 0 to move cylinder to the end position. And when cylinder activates end switch 1 then I need output from MI 2 to move cylinder automaticaly in zero position. And when he reaches zero position he activates end switch 2 and he stops. Is it possible to do that? I know how to do it with digital outputs Reset and Set, but with analog outputs no
  15. @Flex727 thanke you for your answer and solution. Its working now like it should
  16. Hi, I made simple program to control analog outuput +/- 10V by display. A have two buttons 1 and 2. And if I press button 1 a get analog output +0...10V and if I press button 2 then I get 0 ... -10V (what I set before on display). Now I have problem if i press button I get setted output but when I release it I still have it. Now I need that when I hold the button 1 or 2 I get signal from analog output and when I release it, it has to be 0. I used Store direct function. Is it possble to do that? I dont need linearization for this project. test_analog-out.U90
  17. Thanke you for your help. Yes JZ20-11-UA24 has +/- analog output and its working 4095 +10V, -4095 -10V Now I have programming problem... but I have to open new topic in right place.
  18. Thanke you for the answer, but in documentation of unitronics JZ20-11-UA24 is written for analog output: 2 12-bit +/– 10V, 4-20mA
  19. HI to all. I have one project that I need to drive hydraulic proportional valve that has +/-10V. So now I need PLC with analog output +/-10V and I found JZ20-11-UA24 PLC. Will this Jazz be a good to drive my prop. valve or is there another unitronics product that can handle +/-10V output? Thanke you in advance for you answers.
  20. AlexUT thanke you for the answer. Yes I Will have 1 pulse per rotation. This is my firs project with unitronics V430 and I hope that I Will manage to write a program today. Are there any examples for this kind of aplications that can help me with programming?
  21. HI, I have one project that I have to measure speed of the hydraulic motor 0-10000 rpm. For measuring I would like to use Inductive sensor that has 3kHz switching frequency. http://pdb2.turck.de/repo/media/_en/Anlagen/Datei_EDB/edb_4602050_gbr_en.pdf Is it possible to do with V430 and High speed input?
×
×
  • Create New...