FMF

LF77-AKZ250-USB2(B) Mach3 USB CNC Controller Board, 3/4 Axis, 200KHz

$120.48 USD

~~$0.00 USD~~ $120.48 USD

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Axis Configuration 3 Axis 4 Axis

Product Overview

The LF77-AKZ250-USB2(B) is a Mach3 USB CNC motion controller board for 3-axis or 4-axis CNC control setups. It uses USB connection, supports plug-in use without separate USB driver installation and USB hot-swapping, and provides a maximum 200KHz step-pulse frequency for stepper or servo motor control.

Key Features

Model: LF77-AKZ250-USB2(B)
Interface: USB
Axis configuration options: 3 Axis and 4 Axis
Maximum step-pulse frequency: 200KHz
Mach3 support listed, including Mach3 R3.043.066
USB connection status and working status can be shown by indicator LED
Feed rate, spindle speed rate, or jog rate can be controlled by the adjustment knob
On-board isolated power supply is listed; external power can also be applied to reduce USB load

Technical Specifications

Axis output	3 or 4 axis, high-speed optocouplers
Axis output frequency	200KHz
Digital inputs	PNP-5V x 16, optocoupler isolation
Analog inputs	0-3.3V x 2, non-isolated
MPG input	PNP-5V x 1, optocoupler isolation; MPG listed as not real time
Speed measurement input	1 optocoupler-isolated input, PNP-5V / NPN-5V
Digital outputs	Open collector output 500mA x 8, optocoupler isolation
Analog output	PWM open collector output 13mA x 1, optocoupler isolation
Mach3 functions listed	Software limit and backlash functions
Listed limitations	No slave axis, no automatic leveling, no axis link

Buyer Checks Before Ordering

Select the correct 3 Axis or 4 Axis variant for your CNC control layout.
Confirm your Mach3 version, Windows environment, input voltage logic, output load, and spindle control requirements before purchase.
Check whether your application needs real-time MPG, slave-axis control, automatic leveling, or axis-link functions, because this listing marks those items as unavailable or limited.

FAQ

Is this board for 3-axis or 4-axis CNC control?

Both 3 Axis and 4 Axis variants are listed. Choose the variant that matches the number of axes in your CNC machine setup.

What is the maximum step-pulse frequency?

The listed maximum axis output frequency is 200KHz.

Does the LF77-AKZ250-USB2(B) require a USB driver?

No separate USB driver installation is required, and the board can be used after plugging into the computer.

Which compatibility limits should I check?

The listing marks MPG as not real time and lists no slave axis, no automatic leveling, and no axis link. Confirm these limits against your CNC control requirements.