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DigiSpeed-GX™
This now concludes the configuration of the Mach3 software for the DigiSpeed-GX™. The
next step is to hook up the unit to your breakout board for testing.
5.3
Power to the DigiSpeed-GX
The first step in the installation is to provide 5V power to the DigiSpeed-GX™ controller.
Wire DigiSpeed-GX™ J1- GND pin to a logic ground terminal on your CNC controller
breakout board. This logic ground is the same as the PC printer port 0V potential, found on
pins 18 to 25 of your printer port.
Wire DigiSpeed-GX™ J1-+5V to a 5Vdc supply on your CNC controller's breakout
board. This needs to be 5Vdc with respect to the PC printer port ground.
Turn on your CNC controller. This should provide the 5Vdc supply to the DigiSpeed-
GX™. Verify this is the case, by checking that the Mode Indicator LED is flash a slow
double flash. If not, turn off the CNC controller and check the wiring.
5.4
Connect the PWM Signal
Wire DigiSpeed-GX™ J1-Vin to pin 1 of the printer port via your CNC controller's
breakout board.
You can now test that the PWM speed value is being received by the DigiSpeed-GX™. Set
the spindle speed to zero typing it into the speed DRO, or entering the command 'S 0' into
the MDI window .
Copyright 2006 ©
- Users Guide
Illustration 2: Mach3 Spindle Setup Tab
Homann Designs
Page 15
Revision 0.1
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