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Discussion in 'General Electronics Discussion' started by Discal, Dec 11, 2010.

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  1. Discal


    Dec 11, 2010
    We are retrofitting an old Cincinnati lathe and come upon a small roadblock. The axis amp outputs a 24vDC signal that closes to enable the amp. Unfortunately, the controller also outputs a signal, 4.9vDC and 2.2mA. Our problem comes in at this point; we need a SSR that will switch below 5vDC and 2.2mA. We have found several that come in at, or under 5vDC but none, which hits the 2.2mA range.

    Would anyone have suggestions as to where we could locate an SSR that switches within the 5vDC, 2.2mA range?

    Thank you in advance for any help you might have.
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    Do you have access to the power rails?

    2.2mA is plenty to turn on a transistor which can supply more current to the SSR.
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