[TriEmbed] Circuit Help

Pete Soper pete at soper.us
Fri Dec 4 12:07:35 CST 2015


Just string together a few plain relays.
-Pete

On 12/04/2015 12:51 PM, Grawburg via TriEmbed wrote:
> I have a quarter-turn ball valve with a 12V actuator [HSH-Flo 1/2" DN15 12VDC CR-05 FNPT SS304 Position Feedback Motorized Electric Ball Valve.]  I'm using opto-isolated relay activated by a Raspberry Pi but can only control one direction because the valve reverses direction by flipping the leads. If I was doing it mechanically I would have a double pole triple throw rotary switch. I cannot find a suitable opto-isolated relay that is 2P3T...at least one that doesn't cost a fortune. Any suggestions to help me think this through would be welcomed.
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> Thanks,
> Brian Grawburg
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