This is my first time using hydraulic proportional valves, and I'm sure I'm just making them more complicated than need be. I was just going to barrel into the code and make something that works, but surely someone here has already figured it all out and can share?
I have an Allen Bradley PLC (1769-L30ER), with an analog output card (1769-IF8) that drives the proportional valve with 4-20ma. The only feedback I have is an extend, extend decel, retract decel, retract prox switches. I need the cylinder to move from extend to retract and back again as fast as possible, with ramp up and down for acc/dec. Fairly straight-forward application.
Can you all share examples of how you handled this in the past to get me started in the right direction?
I have an Allen Bradley PLC (1769-L30ER), with an analog output card (1769-IF8) that drives the proportional valve with 4-20ma. The only feedback I have is an extend, extend decel, retract decel, retract prox switches. I need the cylinder to move from extend to retract and back again as fast as possible, with ramp up and down for acc/dec. Fairly straight-forward application.
Can you all share examples of how you handled this in the past to get me started in the right direction?