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Changing the operation of the relay when an ON command is sent

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    Changing the operation of the relay when an ON command is sent

    I have installed an IO Link 2450 to control LED basement stair lights using the IO Link relay. My Home Control Assistant software (runs continuously) send an On command to energize the 2450 and an Off command to de-energize it. The Lights are connected to the NO and COM terminals.

    The documentation seems to suggest I can reverse this operation. The On command would de-energize the relay and the Off command would Energize the relay. I would connect the lights to the NC and COM terminals. Reason I want to do this is- in the event of a power-failure, the 2450 relay would de-energize and turn the lights on. The lights are powered via UPS and would work in the event of a power failure, thus lighting my basement stairs in the event of a night time power failure.

    According to the instructions, if I set the 2450 relay to the position I want it to be when an ON command is sent (de-energized OFF), then press and hold the set button on the 2413U until the beep, then press and hold the button on the 2450, until the beep, this should do that. It does not change anything.

    To sum up- I want an On command from my home control program to de-energize the 2450 and an OFF command energize the 2450 relay. What am I doing wrong, or can this be done?



    #2

    Your theory looks sound.
    Did a test with a 2440 RemoteLinc and a 2342-222 Mini-Remote.
    2450 I/OLinc Rev 2.3
    Continuity tester on the NC and COM terminals.
    Manual Link from a button set to I/OLinc with the relay Off. Dim LED on the side.
    An On from the remote turned the relay Off. NC and COM connected.
    An Off from the remote turned the relay On. NC to COM open.
    Loss of power. NC to COM connected.
    I have not tested with a 2413S/U PLM. So I can't say if that works.

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      #3
      I have an ISY994i system. With a 2413S PLM.
      I tried what you did.
      Could not use the local Set Button to manually add it to the PLM.
      There is a command to disable the local Set Button linking.
      I suspect the ISY994i has set the configuration bit 7 to disallow it.
      I also tried adding it with the relay off through the ISY994i.
      With the relay in the off position.
      It acted exactly like yours did.
      On turned the relay on.
      Off turned the relay off.
      So it maybe possible as the my local set button test did what you wanted.
      Hope someone can add more to this for you.

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