PWM gen

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7 years 10 months ago #121886 by Sytreca
Replied by Sytreca on topic PWM gen
If i generate a PWM on the 5i23, is it still possible to create a 0-10V signal?
I tought the 5i23 only can get 5V on it's pins.

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7 years 10 months ago #121887 by PCW
Replied by PCW on topic PWM gen
You can get 10V but it needs an op-amp (to change the 0..5V analog to 0..10V)
or some kind of level translator for the PWM before filtering. (our SPINX1 does this)

Heres an example schematic for a 7I66 output filter:

Attachment not found

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7 years 10 months ago #121888 by andypugh
Replied by andypugh on topic PWM gen

Sytreca wrote: If i generate a PWM on the 5i23, is it still possible to create a 0-10V signal?
I tought the 5i23 only can get 5V on it's pins.


It can be done if the VFD has +10 and 0V terminals for a potentiometer:

Attachment not found

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7 years 10 months ago #121889 by andypugh
Replied by andypugh on topic PWM gen
Or you can configure the VFD so that 5V is the max required speed.

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7 years 10 months ago #121890 by Sytreca
Replied by Sytreca on topic PWM gen
@andypugh and @PCW thank you very much for your help. I will probabbly go for the solution of PCW because it was the one that comes the closest to what I was thinking.

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