Needing help with the double solenoid

[Oblarg]

Originally Posted by Jesus Perea

The other problem is that when we manage the solenoid in a manual way, the piston extraxct and retract correctly.

And the voltage of the solenoids is 12V

Do the solenoid status lights turn on and match the intended behavior in code?

[Jesus Perea]

Yes when we press the buttom that corresponds in our program the lights turn on and matched with our code.

[Oblarg]

Originally Posted by Jesus Perea

Yes when we press the buttom that corresponds in our program the lights turn on and matched with our code.

Could be a bad solenoid, then. Have you tried multiple solenoids?

And, again, make sure that your downstream pressure is above 25 psi, else the solenoids will not change state (even though you can force them to do so manually).

[Jesus Perea]

Is exactly the same problem.
It could be the connection of the pneumatic system?

[Oblarg]

Originally Posted by Jesus Perea

Is exactly the same problem.
It could be the connection of the pneumatic system?

What is your working circuit pressure?

[Jesus Perea]

70 PSI.
And also we change the solenoid and it was the same problem

[Oblarg]

Originally Posted by Jesus Perea

70 PSI.
And also we change the solenoid and it was the same problem

Ok.

I notice in your code that it seems you're trying to control the double solenoid using two single solenoid controllers.

This is bad practice, since there are states possible for two single solenoids that are not possible for a double solenoid (i.e. both open or both closed). If you attempt to put the solenoid into one of these states, it probably could cause problems/not work (full disclosure: this is not a mistake I have ever made myself, so I do not know exactly what happens if you do it).

Try using the double solenoid option instead of the single and see what happens.

[Jesus Perea]

We have resolved our problem.
The issue is that the Festo solenoids recived 24V so we change the jumper of the PCM to 24 V and the piston works correctly.
Thanks to all!

[GeeTwo]

Originally Posted by Oblarg

What is your working circuit pressure?

Originally Posted by Jesus Perea

70 PSI.

This is certainly enough to pilot the valve. However, you should be aware of:

Originally Posted by 2015 Game Manual, R71

“Working” air pressure on the ROBOT must be no greater than 60 psi and must be provided through one primary adjustable, relieving, pressure regulator, relieving, pressure regulator.

So, to recap your issue:

• The lights on the PCB show the right state.
• The Valves function correctly when manuall electricswitching is used
• The voltage of the solenoids is 12V
• The PCB voltage selection is not given.

The first thing to check is the PCB voltage. This is selected with a jumper near the center of the PCB. If you're reading the word "STATUS" upright, the jumper is above and to the left of the STATUS light. The legend is just below the jumper.

If that's correct (or has been corrected and still no joy), check the electrical output of the PCB. I suggest unplugging the wire at the solenoid end and putting a voltmeter across the two pin sockets on the cable. Verify that you are getting 12V there when you expect it. If not, check again at the PCB output; you may have a bad wire. If no voltage at the PCB, try another port.
If you're getting 12V at the end of the wire but it's not enough to switch the solenoid, about the only thing I can think of is that the connector itself isn't engaging with the solenoid pins.