pneumatics help

[executionR]

Anyone tht cn help us, team 3080, on pneumatics programming please send messages to jose_ramirez1204@live.com. we really need major help. any help will be greatly appreciated

[executionR]

Ship off day is tomorrow and we3 r nowwhere close 2 getting our pneumatgics working please help.:ahh:

[DonRotolo]

Honestly, your best bet is to explain in detail what you want to do, what you have so far, and what exactly we can help you with - here. Be detailed for the fastest answers.

[executionR]

okay our problem is the complete wiring of the pneumatics... First we are using the festo valve which retracts the actuator automatically after being used. The compressor is already setup to work manually with the valve... however we don't know how to integrate the compressor into the electronics so that it works on its own and stops and 115psi with the pressure switch/regulator...

Conclusively the wiring for the direct operation of the compressor on its own is needed. and the activation of the festo valve independently with the joysticks..
We dont know were to connect the parts into...not sure weather to use spikes.. or the pneumatics bumper... I code for the programming we will use the samples provided... and after identification of what parts are needed were are they needed to obtain power and be triggered...

[kavisiegel]

I tried emailing you, but it came back with an error. How can I help out? I fought the pneumatics battle last week with my team.

edit: I guess I should have refreshed before I posted.. give me a sec to read!

Ok, yeah, you need to wire the solenoids to the pneumatics bumper. The attached picture shows how you open them in begin.vi, and from the enum variables you can establish where to plug things in

[executionR]

The post above explains our problem please help.... in the most detail I could

[executionR]

Can you please explain how to wire the individual parts to each other, such as festo valve, pressure valve, and connections to sidecart, and spikes. pleae

[kavisiegel]

Ok, so the compressor needs to be connected to a spike that's connected to the power distribution board with a 30 amp fuse. Connected to that spike should be a PWM cable going to the sidecar's relays. We used number #1. Then, the pressure switch should be connected to the sidecar's DIO, where we used #2.
It should automatically work once you get that code in there.


The compressor needs a blowoff valve on one side, and on the other side, it needs to go to the pressure switch and bleeding valve. You can t off that and go into the tanks. Hook the tanks up to the solenoids (one side or two side, by the way?)

The solenoids can either have their own spike, but its much cleaner to use the relay/pneumatic module as we did. Just plug each side into any slot on it.

[executionR]

what is the DIO... and can you please further explain connections to Crio and sidecart... can you direct us to any schematics??? we have all the compressor components assembled but where do we connect the pressure gauge valve located next to the leakage/release valve

[kavisiegel]

DIO = Digital Input/Output

I've attached a schematic that was included with a sample VI for LabVIEW

[executionR]

we got the compressor set up can you help with festo valve....wiring and the psi monitor that shut offs the compressor..can you help please....:(

[kavisiegel]

I'm somewhat confused. Do you need help with the compressor, or the solenoids?

[executionR]

we just figured out the compressor we just need help with the gauge that stops the compressor when it reaches 115psi for safty and the solenoid the one by festo that retracts automatically after being activated....please help

[kavisiegel]

we just figured out the compressor we just need help with the gauge that stops the compressor when it reaches 115psi for safty and the solenoid the one by festo that retracts automatically after being activated....please help

Yeah, that's also in the diagram that I posted.

The switch needs to be wired to Digital Input number 1, and the spike needs to be wired to relay number 1. LabVIEW reads the switch on the digital input, and turns on the relay as needed.

[executionR]

do you know how the labview to this should look more or less?

[kavisiegel]

I posted a labview screenshot earlier, but this one focuses on just the compressor

[executionR]

ok yea this very confusing to us... can you explain with a little more detail please...

[kavisiegel]

Ok. So, in labview, open begin.vi. Go to the block diagram, then right click,go to "WPI Robotics Library," then "Actuators," then "Compressor"

Choose the Open VI, and place it below the rest of the code. Right click on the terminals, and go to Create, then Constant. From there, tell labview where things are plugged in. It will ask for the Digital I/O channel and Relay channel, both of which should be one if plugged in correctly.

Then, go back to the Compressor group of functions, and choose compressor start. Wire the top and bottom terminals to the start VI. Then, go back to the compressor functions one more time, and choose the RefNum Registry Set function. Wire it up as shown in the screenshot I posted above, then drag down the bottom of the build array block to allow you to wire in one more error.

Then you can save your code, and run it from robot main. The compressor should turn on when you enable the robot.

[executionR]

well I think I got most of it but one final question about that valve that is next to the pressure gauge were does it go connected I do not understand please explain...

[kavisiegel]

I don't know your specific setup, but if there's a valve that goes nowhere, it's probably the drain valve. You probably won't want to keep the robot pressurized at all times, so opening that valve lets out the pressure.

[executionR]

yes but next to that valve there is an electronic copper looking things that checks the overall pressure of the system and that has to be wierd to tell the compressor to stop how is that done....??????

[kavisiegel]

yes but next to that valve there is an electronic copper looking things that checks the overall pressure of the system and that has to be wierd to tell the compressor to stop how is that done....??????

That would be the switch that needs to be wired to the digital input...

[RyanN]

I just made a thread that tries to explain Pneumatics. See if it helps you out: http://www.chiefdelphi.com/forums/showthread.php?threadid=83435

[executionR]

Can u post an image of where to connect the solenoids tht would really help out alot ryan?

[executionR]

team 61can you please help us out on connecting the solenoids... please..

[RyanN]

Can u post an image of where to connect the solenoids tht would really help out alot ryan?

I updated it. Hopefully it's a little clearer. It's really as simple as connecting the solenoid's wires directly to the solenoid breakout board using the 2-wire jumpers provided in the kit.