cuschera

Very interesting about FB for modification during movement... I should take a look about it, thanks Linear movement doesnt stop during forward or backard position. 3 points are defined in table and as you said, there are sequence program to change them during process (speed and torque also) like this   In my case, I just have to activate blower valve during cutting at specific position, knowing that piece diameter may be different. So i used Current value monitor. I did this today and it's working well, this solved my problem dividing by 10.000. Result with enough accurate.     Last question if you have time :)  This way to do is certainly not the best solution. I'm lucky because I've not lot of points to write. In summary, I've only need 3 points that are carry forward by offset, but I dont know how to do offset on my point in mitsubishi, so i manually wrote all my points in word.  I thought maybe to use "FOR LOOP" ... What do you thing ?  (M1 to M9 allow me to activate or not the blower according to the position)   I thank you for your support, !      

In your example, I only use this STL if I want good result : ( but how precisely ? )  In my example, D886 is the real current value, in micro meter unit,      Currently I cant use the positioning data number because my points are not defined in table. The reason is because one precise point may vary between few different value. Depending in my case, of piece diameter who changed during process. Thats why its big challenge for me... My only problem is because plc jump out the real value in micro meter, because too precise I thing... that's why i proposed to divide by 1000 µm => mm  Hope my explanation was clear

I will try dividing by 1000 all my point and test again, maybe that'll solve it, I'll say you the results

Im not sure to undestand what do you mean by "examine GT or EQ" ?  what i'm thinking is during one PLC scan (40ms but I have to confirm it) actual value exceed the constant value. So I try ton find out new way to do it. Unfortunately, i'm beginner in intelligent fonction module yet (QD75) In any case, I can't see visualy if actual position match with d886 because to fast.  thanks again

If i'm not mistaken, D886 is registered in DWORD 32 bits in the plc program, thats why I have comparison with "D=". anyway, the value that I see on HMI is a very big value, because in micro meter. Thanks for your response

Hello all,  For an improvement project, I have to activate solenoid valve at few specifics points during forward movement of servomotor on linear guide. To do this, I calculated all points and store it in different word. Until now no problem. I used actual value (D886) and home position of servo as reference point. In picture below, problem occurs when servo goes to K859000 (in µm). Actual value increases so fast that the cpu can't read the data and doesn't activate M1 CPU : Q04UDV transfert speed : 6000 mm/min -I thought to multiplie µm value to mm value, could that improve it ? - Must I write all points in QD75 buffers and then use it ? Thanks a lot in advance, I hope I clearly explained my problem, I've not a really good english level.