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Solenoid Valve Control
VTStudent
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10-10-2007 01:45 PM
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Hello,
I am in need of some advice/help. I have an experimental setup that requires the rapid opening of normally closed solenoid valves based on a physically measured parameter (wind speed) which I am currently measuring using the compact fieldpoint. I took a look today at various options, and it seems that I may want to look at getting the cFP-RLY-421 along with a connector block. Is this the case? This module acts as a relay switch which when combined with an outside power source will open and close my valves correct? The valves are 24 VDC actuated valves and I am assuming that the relay when connected with the valves and the power source will close the circuit and actuate the valve based on what I am telling it to do.
Also, I was wondering if there was a VI out there that specifically shows a voltage signal being generated for compact fieldpoint control of the 421 relay module? Does any of this make sense?
In short, I just want to control some valves with my fieldpoint and I am just not 100% sure of how to do it. Kind of like turning a light switch off and on, but automatically.......hopefully, someone can shed some light.
Thanks.
Tim
I am in need of some advice/help. I have an experimental setup that requires the rapid opening of normally closed solenoid valves based on a physically measured parameter (wind speed) which I am currently measuring using the compact fieldpoint. I took a look today at various options, and it seems that I may want to look at getting the cFP-RLY-421 along with a connector block. Is this the case? This module acts as a relay switch which when combined with an outside power source will open and close my valves correct? The valves are 24 VDC actuated valves and I am assuming that the relay when connected with the valves and the power source will close the circuit and actuate the valve based on what I am telling it to do.
Also, I was wondering if there was a VI out there that specifically shows a voltage signal being generated for compact fieldpoint control of the 421 relay module? Does any of this make sense?
In short, I just want to control some valves with my fieldpoint and I am just not 100% sure of how to do it. Kind of like turning a light switch off and on, but automatically.......hopefully, someone can shed some light.
Thanks.
Tim
TreyB_NI
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10-11-2007 10:47 AM
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Tim,
We spoke on the phone yesterday. To wire to cFP-RLY-421 to supply power to your load, you will need to use the configuration seen in the attached image on the left. This image is from the FP-RLY-420 manual from 1998. You will have to supply a power supply to V and C, and that power supply will determine what is applied to your load.
Trey B | Applications Engineering | National Instruments
We spoke on the phone yesterday. To wire to cFP-RLY-421 to supply power to your load, you will need to use the configuration seen in the attached image on the left. This image is from the FP-RLY-420 manual from 1998. You will have to supply a power supply to V and C, and that power supply will determine what is applied to your load.
Trey B | Applications Engineering | National Instruments
