Peter Nachtwey
Member
Yes and the PLC can issue commands over the Ethernet/IP.Will a motion controller accept a 4-20ma position input?
You should have provided all this information all the information above at the start.
Your system is a p!$$ poor design.
What kind of machine is it? I know about different sawmill machines.
Yes, you need a motion controller for hydraulic servo control but that won't help without some other changes.
You also need a true servo quality proportional valve. One that doesn't dump oil to the tank so there is no braking.
What supplies the hydraulic oil? Is it a constant oil source like a constant current source? Accumulator(s) may be needed.
You won't be able to make significant improvements with what you have now.
What you say about reading positions every 200ms but updating the speed faster doesn't make sense. In any case the updates are too slow.
I know about sawmills I have operated just about every type of machine they have installing new controls and making upgrades. I used to work for USNR in the 1980s. I have spent many hours in them. Delta Motion makes most of the hydraulic servo controllers used in sawmill in North America. You have an odd ball and poorly designed system.
I am a member of the International Fluid Power Hall of Fame. I know about hydraulic system design.
Now what are you willing to change?