I am trying to use 9 V DC relay board to power 24 V DC pmeumatic valves (normally open, from FESTO) and I do not see any change in pressure while the valves are supposedly ON-OFF. I tested the system with a 20ml syringe to check the pressure. I do not have knowledge in electric, thus I wonder if it is impossible to use such a system, if, the power from my relay board is not enough to actuate the valves? Or, if the way I check it is not really manually sensible? (the valves go up to 0-6 bar)
Use a multimeter to make sure all connections are fine. You can also call Festo support. I am assuming you might have already seen this reference for using Festo valves with microfluidics-https://sites.google.com/site/rafaelsmicrofluidicspage/valve-controllers/solenoid-valves
The answer is very simple in that it requires 24V and not 9V. That is why it is not working. Try 24V and understand that equipment will only work at its specified operating voltage.
Agree with Gregory. Note that for these Festo valves, 24V is the operating voltage, not the maximum safe voltage. It would be surprising if 9V were enough to operate the valves!
thank you everyone for your clarifications. we are in the process of correcting this.
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