Seems like this should be a simple thing but I’m struggling with it.
The basis is that I am trying to detect if a linear assembly is stopped or obstructed when the motor is being commanded to run.
I have the speed data using the output frequency of the drive and the gearbox ratio.
I have position of the assembly using a laser time of flight sensor through I/o link.
So I have speed, I have position, how do I get rate or velocity? This doesn’t need to be super accurate. I’m just trying to throw an alarm if the position of the assembly is not keeping up with what the speed should be.
I’ve tried several things but I can’t get a constant variable at a set speed I can compare to.
I’m using a compactlogix, any suggestions to a down and dirty simple way to accomplish this?
The basis is that I am trying to detect if a linear assembly is stopped or obstructed when the motor is being commanded to run.
I have the speed data using the output frequency of the drive and the gearbox ratio.
I have position of the assembly using a laser time of flight sensor through I/o link.
So I have speed, I have position, how do I get rate or velocity? This doesn’t need to be super accurate. I’m just trying to throw an alarm if the position of the assembly is not keeping up with what the speed should be.
I’ve tried several things but I can’t get a constant variable at a set speed I can compare to.
I’m using a compactlogix, any suggestions to a down and dirty simple way to accomplish this?