Rate controllers are commonly used on fertilizer application systems for seed drills and planters; accurately and reliably controlling rate of flow by regulating the speed of a 12 volt pump.
If you are having issues with your controller, here are some helpful resources to diagnose problems with you PWM board.
40 Amp PWM Electric Motor Driver
50362-40A-PWM-EMD-071922
.pdf
Download PDF • 328KB
Our JDS 25 and JDS 10 controllers use the same signals as shown on the document above.
For more manuals and literature.
https://micro-trak.com/product/electric-motor-driver/