Dynomotion Forum

I want to change out my KStep board and use two OpAmp boards for my machine instead. Does the Flop board have a PWM output I can use to send the speed control signal to the spindle inverter, and how would I configure that?

I meant to say, I also have a Konnect board in this setup if that changes anything.

I'm not sure what "OpAmp boards" are. But it seems your Spindle needs an analog signal for speed control? Or can it accept a PWM signal?

KFLOP has 8 8-bit PWM signals available on its JP6 connector. These are 3.3V LVTTL signals.

Software can be used to control 2 Konnect Outputs with a simple RC Circuit to generate an isolated Analog signal. The analog output is relatively slow (takes ~40ms to change and stabilize) but is usually fine for something like Spindle Speed Control. See here.

Also our KNozz board has the same PWM to isolated analog circuit that KStep has.

Sorry, I meant SnapAmp.
Thank you for your prompt reply, that information is exactly what I was after, and I should be good to go from here.

Thanks again!