RECOMMENDATIONS:

• The configuration you did on the initial Step-by-step instructions for Mach3 or Mach4 configured the control software and plugin, you just need to set the max spindle speed.
• Keep in mind that you need to configure the VFD to take the control signals through the terminals:

  • PARAMETER	VALUE	DESCRIPTION
    Rotation direction - PAR 17	02	Forward and reverse.
    TB-13A Function select - PAR 10	06	Start reverse
    Speed control - PAR 5	03	0-10 VDC

• Run the spindle at different speeds and test with a DMM that you are getting a 0-10vdc from the analog output terminals that is proportional to the commanded speed.  The Relays should also activate to start the spindle in the commanded direction.  This will confirm that your configuration is OK.
  
  
• Here is a link to the manual of the driver: VFD Manual ac-tech-scf-drives-installation-operation

Configuration de Min and  Max Spindle Speed.

• Mach3
  Config / Spindle Pulleys

• Mach4
  Config/Control/Spindle

• UCCNC
  SETTINGS / SPINDLE