[TriEmbed] Circuit Help

Rodney Radford ncgadgetry at gmail.com
Fri Dec 4 12:10:38 CST 2015


One DPDT for direction and a SPST to break the circuit (on/off)
On Dec 4, 2015 1:07 PM, "Pete Soper via TriEmbed" <triembed at triembed.org>
wrote:

> 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.
>>
>>
>> Thanks,
>> Brian Grawburg
>>
>>
>>
>>
>>
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>
>
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