Control Solenoid valve

[shervy]

Hello, I'm brand to new labview and need some help/assistance. I am trying to use labview to quickly activate a single solenoid valve while activating a high speed camera within half a second of the solenoid valve being activated. I have not decided on what kind of solenoid valve I would be using, though I am considering a two-way normally closed pinch valve 12VDC 4watts. I need help with how to make this work on labview, and any recommendations on what other parts and pieces I require. Thank you in advance to all the help.

Shervin

[apok]

you need a write to a daq output with 0.5 second delay cycle to signal a driver of some sorts(ssr ,coiled relay, etc.) to your solenoid, unless your solenoid takes a TTL input

[winterishere8]

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@shervy wrote:

Hello, I'm brand to new labview and need some help/assistance. I am trying to use labview to quickly activate a single solenoid valve while activating a high speed camera within half a second of the solenoid valve being activated. I have not decided on what kind of solenoid valve I would be using, though I am considering a two-way normally closed pinch valve 12VDC 4watts. I need help with how to make this work on labview, and any recommendations on what other parts and pieces I require. Thank you in advance to all the help.

Shervin

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What is the device that will activate the solenoid ? I am assuming it will be +5V TTL. Typically DAQ card doesn't source much current. It is in the range of 10-20mA. You solenoid will need more than that. I suggest you use a product from winford. Everything is done for you and all you need to provide is the +5V TTL signals.

http://www.winfordeng.com/products/cat_rly.php

[AnalogKid2DigitalMan]

Or use a ULN280x Solenoid/Relay driver:

http://www.st.com/web/en/resource/technical/document/datasheet/CD00000179.pdf

-AK2DM

[mikealder]

The ULN280* will be fine for driving the solenoid but make sure you add a diode across the solenoid to dump the back EMF from the solenoid when you de-power it otherwise it might only work once or twice - Mike

[apok]

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@mikealder wrote:

The ULN280* will be fine for driving the solenoid but make sure you add a diode across the solenoid to dump the back EMF from the solenoid when you de-power it otherwise it might only work once or twice - Mike

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the uln already has a flyback diode built in...

[labmaster]

Sorry for late response.

How about this kind of relay?

http://www.ebay.com/itm/DC-12V-2Ch-RS232-Relay-Switch-Board-Remote-Control-USB-PC-UART-COM-Serial-Po...

or https://www.controlanything.com/Relay/Device/ZADR220PROXR_ZRS