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The UCCNC UB1 already have a PWM, can I use that to get 0-5VDC? Is there a way to bypass the AnaSpeed circuit? There is no AC voltage. All I have is the 24VDC and 5VDC from the UB1 and 5VDC from the spindle controller. Do I have to go DC(from spindle controller) to AC(AnaSpeed) back to DC(Lowpass Filter)?
If you supply 5V to AH1, the UB1 will output 0-5V.
There is a slight voltage drop though, so you need to provide slightly more than 5V to get a full 5V out.
You could also supply 10-12V to AH1, and adjust the PWM Max % to reduce the output to 5V, by setting it to roughly 50%.
If I put 5VDC on AH1 won't AO1 be AC?
No, there is no AC voltage. It'll be 0-5V DC voltage.
Guess I read the manual wrong. Thanks for your help!