i have a set of three drivers that came out of a syil machine a few years ago. The only thing stopping me from re-using them is the current adjustment...

They don't have the common switches that most drivers use now, it appears to have an adjustment screw with no means of knowing what current output is set to.

Anyone have experience with these older stepper drivers and trying to tune what the current output is set to? i want to reduce them to 2A for a set of motors i have on a smaller machine.

Thanks!