PWM with SSr relay and I/O board 8/8/8w/6

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nono33z
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PWM with SSr relay and I/O board 8/8/8w/6

Postby nono33z » Wed Jan 18, 2012 5:04 am

Hi,

Is what I can do pwm with ssr relay card, connected to an I / O card 1019.
And if yes, in wich frequency range max.

For information, in my application, i would to control a valve : 24 V DC, pwm 1000hz max and perhaps a pump, in 24V DC too.

Otherwise, do you know a ssr relay can do that?

Thanks a lot.
nono33z

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burley
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Re: PWM with SSr relay and I/O board 8/8/8w/6

Postby burley » Thu Jan 19, 2012 8:12 am

No this would not be possible. It is not so much an issue of the relay (you could probably find one that switched fast enough to emulate a 1kHz PWM signal, note that ours do not however) but the 1019 will not be able to control it that fast. The outputs on the 1019 have a max update rate of 125 samples per second.
Brian Burley
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Patrick
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Re: PWM with SSr relay and I/O board 8/8/8w/6

Postby Patrick » Thu Jan 19, 2012 11:02 am

125 is the input rate. You may be able to toggle an output at ~1000Hz, but this behaviour certainly isn't guaranteed.

-Patrick

nono33z
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Re: PWM with SSr relay and I/O board 8/8/8w/6

Postby nono33z » Thu Jan 19, 2012 11:22 am

ah ok, thanks you for your responses.

Nono33z


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