... , overheating, over speed, overproof protection;* Green light for on, red light for protected mode or offline. Ports detailsX1: control signal ... Motor armature3VDCInput DC power 4GNDInput power ground Parameter adjusting and setting(Potentiometer adjusting, CCW to minimize value, CW to ... 4 bit double row pin on drive circuit board for the working mode setting, number 1, 2, 3, 4 respectively from ...