Gentlemen,
I need your expertise and would appreciate your wisdom:
I am working on an uncoiler which due to design issues causes a lot of wobble (the coil is off-center). The spool diameter is measured with a sensor giving out a continuous signal. As a result the VFD, which is getting this signal through a SLC04/05 accelerates and decelerates the uncoiler unnecessarily. We are talking 30hz of variation here which caused Overvoltage Faults which I fixed with a brake module and resistor.
Anyway, the actual rootcause for this accel/decal seems to be the wobble.
I assume using some kind of signal-conditioning using anti-lising or averaging of the output signal of the sensor would be the way to go (mechanical fix is in process), but I want to educate myself and hope you can share some professional solutions and ideas. I have never done this and taking the line down to experiment would be expensive.
I found a lot of FIFO,FUFU and FIFI ( ) and whatnot averaging-code, but I am not sure if that’s how I should do it.
Educate me, please.
Thank you
I need your expertise and would appreciate your wisdom:
I am working on an uncoiler which due to design issues causes a lot of wobble (the coil is off-center). The spool diameter is measured with a sensor giving out a continuous signal. As a result the VFD, which is getting this signal through a SLC04/05 accelerates and decelerates the uncoiler unnecessarily. We are talking 30hz of variation here which caused Overvoltage Faults which I fixed with a brake module and resistor.
Anyway, the actual rootcause for this accel/decal seems to be the wobble.
I assume using some kind of signal-conditioning using anti-lising or averaging of the output signal of the sensor would be the way to go (mechanical fix is in process), but I want to educate myself and hope you can share some professional solutions and ideas. I have never done this and taking the line down to experiment would be expensive.
I found a lot of FIFO,FUFU and FIFI ( ) and whatnot averaging-code, but I am not sure if that’s how I should do it.
Educate me, please.
Thank you