Mach3 USB Motion Board NPN (AKZ250V3)[ENGLISH]



THIS is a 3/5 axis Mach3 USB interface board(NPN) worked with Mach3.

Download: Installation Manual, Plugin, Schematic



USB Full-speed connection.

Up to 5 axes, 500kHz pulsing engine, which is suitable for the servo or stepping motor.

2 real-time Manual Pulse Generation(MPG) input ports for 2 MPG at the same time. When the MACH3 MPG is set in the multi-step mode, it has the same real-time performance as the CNC machining center, smoothly. The control board has no delay and the mechanical system performance is fully utilized.

16 general-purpose input, with particular indicators, the input signal states can clearly shows.

 8 general-purpose output, It can be configured as: spindle clockwise / CCW / Mist / Flood / VB script programming control.

PWM signal spindle control or Step/Dir signal spindle control.

2 analog input ports for adjusting the machining speed / jog speed / spindle speed.

Status indicator LED can be useful to show the USB connection, and working stauts by flashing.

5 high-speed optocouplers(Dual Channel) with 10MHz, 28 general optocouplers for isolating all of the input/output signals, this high-cost design can be provided high performance and stable system.

Fully supporting all Mach3 versions, including the Mach3 R3.043.066 version. Supporting Windows series, including Windows XP-Windows10(32bit/64bit).

No need to install any USB drivers, it can be used after plugging in the computer.

Easy firmware update.

Provide a complete installation manual, illustrated, detailed description.




USB interface


5-axis output signal (direction signal + step signal):

10MHz high-speed optocoupler isolation *10 channel


Optocoupler isolation PWM spindle speed control signal output *1

/ optocoupler isolation universal output *8


Optocoupler Isolated NPN Input *16 / Power Input




USB cable connection


External Adjustment Knob

Motion control board and PC connection

USB cable connection


Manual: NPN (AKZ250V3)Installation Manual Ver1.0.4 English(ZIP/7M) 2019/11/28

Plugin: eMotionMach3(V1.1.0.5).zip(ZIP/0.3M)  2019/10/30

Schematic: (ZIP file/0.3M)

Schematic Preview: