Mach3 USB Motion Board(AKZ250)[ENGLISH]



This is a 3/4 axis USB interface board worked with Mach3.

Mach3 Usb Motion Card Chinese&English Manual, Plugin, Schematic


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

  • Full support for USB hot-swappable, the card is Monitoring USB connection status at any time.

  • Maximum step-pulse frequency is 200KHz,which is suitable for the servo or stepping motor.

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

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

  • With on-board isolated power supply, external power supply is not requested. Simplifying power requirements of electronic control system for easy using. in addition, external power can also be applied for reduce USB load.

  • Feed rate, spindle speed rate, or jog rate can by controlled by the adjustment-knob.

  • 10 high-speed optocouplers with 10MHz, 24 general optocouplers for isolating all of the input/output signals, this high-cost design can be provided high performance and stable system.

  • Fully supporting Mach3 software limitation and backlash functions.

  • With a real-time speed chart and spindle speed changes can be observed

  • Fully supporting all Mach3 versions, including the Mach3 R3.043.066 version

  • Supporting Windows series, including Windows2000/XP/Vista/Windows7.


Basic connection diagram (an Overview)


Chinese&English Manual Ver1.17 (English update:2012-10-02)

   PDF  [Adobe Acrobat PDF – Zip Archive 1.7 MB]

   DOC [Word Document – Zip Archive 2.3 MB]

   Windows 10 Driver reinstalling 2017-8-18   [Adobe Acrobat PDF – Zip Archive 0.8 MB] 


 Plug-in ver2.0.2.1(UsbMove.ZIP) 2019-2-8 [Zip Archive – 0.2MB]

 Schematic [Zip Archive – 69.9 KB]






Axis output num3 or 4 Axis (high-speed optocouplers)
Axis output freq200KHz
Digital inputsPNP-5V *16 (Optocoupler isolation)
Analog inputs0-3.3V * 2 (non-isolated)
MPG inputsPNP-5V *1 (Optocoupler isolation)
Speed measurement input1 (Optocoupler isolation): PNP-5V / NPN-5V
Digital outputsOpen collector output 500mA *8 (Optocoupler isolation)
Analog outputPWM open collector output 13mA *1 (Optocoupler isolation)

Axis BacklashYES
MPG(Manual Pulse Generator)Not real time
Slave Axis(Dual X/Y/Z)NO
Automatic leveling(dual side home switch)NO
Axis LinkNO