Em 25/10/2011 17:33, Isaac Marino Bavaresco escreveu:
> Em 25/10/2011 16:54, alan smith escreveu:
>> http://www.aislu.com/documents/HG30T_EN_S101027V1.pdf
>>
>> If you look at the drive principle, its saying a position DC to latch, a=
nd a negative DC to unlatch?  Is this the same thing as just reversing the =
DC voltage on the coil? Ive not used latching relays before....
>
> There are two types of latching relays, the one with one coil that
> closes when power is applied to the coil in one polarity and opens when
> the opposite polarity is applied.
> The other type has two coils, applying a pulse to one coil closes and a
> pulse to the other coil closes it.


Sorry, "a pulse to the other coil OPENS it"...


>  Some two-coil relays also work with a
> single coil if the polarity of the signal is reversed.
>
> There is a third type of latching relays, the bi-stable type. In this
> type, applying one pulse to the coil makes it close, applying another
> pulse makes it open and so on.
>
>
> Best regards,
>
> Isaac
>

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