Home Forums General Frequently-Asked Questions How does the OsPID modulate its output ?

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  • redwire
    Participant
    Post count: 8

    It looks like it uses low freq. PWM on the mechanical relay O/P. I’ve seen this work with large heating elements- like 1 sec on, a few seconds off, to get say 25% heat. Can you set the time slices?
    What about doing phase-control using a non zero-cross SSR?

    Brett
    Keymaster
    Post count: 101

    @redwire the pwm window size is an adjustable parameter. by default it is 5 seconds, but you can make it whatever you like. currently this is the only form of output. it can go either to a relay or a ~3-4V (don’t have the exact number on me) digital pin.

    with firmware tweaking and hardware hacking available however, it’s likely that you can do whatever you want.

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