Hi friend:thanks for your intresting,yes,it can connect with NEMA17 motors,and it is better use at least 145W24V power uspplykind regtardsTony S
2. Calculating the Setting CurrentTo perform constant-current operations, it is necessary to configure the base current using an externalresistor. If the voltage on the NFA (B) pin is 0.5 V (with a torque of 100%) or greater, it will not charge.Ex.: If the maximum current value is 1 A, the external resistance will be 0.5 W.
The wiring of the 4 leads are ordered as: RED - Phase A BLUE - Phase A Return GREEN - Phase B BLACK - Phase B Return