Ivan,

è a versão oficial e original do Mach3

http://www.machsupport.com/downloads.php

Baixe a versão 3.042.020 (lockdown)

Ivan, creio que o prob ou parte dele pode estar relacionado à charge pump:

8. The charge pump enables the output relays and step & Dir signals only after Mach2/3 is running and reset has been clicked. Out 4 will be active and may be used to drive a solid state relay to activate the motor power supply. Any fault will de-activate the charge pump, remove power form the motors, and disable the step & dir signals form the drives.

NOTE 2: The Charge Pump (safety feature) relay will come on whenever the Mach2/3 reset button is pushed and Mach resets. Jumper JMP1 needs to be in the CP side.  You can use the breakout boad with other control systems that do not have a charge pump signal by placing the jumper LMP1 in the NCP (not charge pump) position.

When using the charge pump signal the breakout board will inhibit all output relays when the charge pump signal is not active.

Jmp 1    charge pump MODE selector.
             CP       charge pump active
             NCP    charge pump by-passed.

J3 See note 1. Used  to select Out 4  for charge pump.

J20  Charge Pump relay See Note 2
        NC   normally closed
        Com is the center terminal
        NO   normally closed.

A propósito sem querer deixar ninguém ansioso, cara ela esta muito macia, não pega nada e é super silencioso, da gosto!